:root{
  --bg:#05070d;
  --bg-2:#0a0f1c;
  --panel:rgba(16,24,42,.55);
  --panel-2:rgba(20,30,54,.45);
  --border:rgba(80,140,255,.18);
  --border-strong:rgba(80,160,255,.42);
  --cyan:#35e0ff;
  --blue:#4d8dff;
  --purple:#9b6bff;
  --text:#e6ecff;
  --muted:#8b96b8;
  --grad:linear-gradient(120deg,#35e0ff 0%,#4d8dff 45%,#9b6bff 100%);
}

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

html{scroll-behavior:smooth}

body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  overflow-x:hidden;
  position:relative;
}

body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    linear-gradient(rgba(77,141,255,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(77,141,255,.06) 1px,transparent 1px);
  background-size:44px 44px;
  pointer-events:none;
  z-index:0;
}

body::after{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(900px 500px at 15% -5%,rgba(155,107,255,.18),transparent 60%),
    radial-gradient(900px 500px at 85% 0%,rgba(53,224,255,.14),transparent 60%),
    radial-gradient(700px 500px at 50% 110%,rgba(77,141,255,.16),transparent 60%);
  pointer-events:none;
  z-index:0;
}

.wrap{max-width:1180px;margin:0 auto;padding:0 22px;position:relative;z-index:1}

/* 导航 */
.nav{
  position:sticky;top:0;z-index:50;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  background:rgba(5,7,13,.72);
  border-bottom:1px solid var(--border);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:66px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:.5px}
.logo-icon{
  width:34px;height:34px;border-radius:9px;background:var(--grad);
  display:grid;place-items:center;font-size:18px;color:#04121a;
  box-shadow:0 0 18px rgba(77,141,255,.55);
}
.logo-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.nav-links{display:flex;gap:26px;list-style:none}
.nav-links a{color:var(--muted);text-decoration:none;font-size:14.5px;transition:color .2s}
.nav-links a:hover{color:var(--text)}
.nav-cta{
  padding:9px 20px;border-radius:10px;background:var(--grad);
  color:#04121a;font-weight:700;font-size:14.5px;text-decoration:none;
  box-shadow:0 6px 22px rgba(77,141,255,.45);transition:transform .18s,box-shadow .18s;
}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 10px 28px rgba(77,141,255,.6)}

/* Hero */
.hero{padding:88px 0 64px;text-align:center;position:relative}
.hero-badge{
  display:inline-block;padding:7px 18px;border-radius:999px;
  border:1px solid var(--border-strong);background:var(--panel);
  color:var(--cyan);font-size:13.5px;letter-spacing:1px;margin-bottom:26px;
  box-shadow:0 0 22px rgba(53,224,255,.18);
}
.hero h1{
  font-size:clamp(34px,6vw,60px);font-weight:900;letter-spacing:1px;line-height:1.15;
}
.hero h1 .grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{
  max-width:720px;margin:22px auto 0;color:var(--muted);font-size:17px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:24px}
.hero-tags span{
  padding:6px 14px;border-radius:8px;border:1px solid var(--border);
  background:var(--panel-2);color:#c7d2ff;font-size:13.5px;
}
.hero-actions{display:flex;gap:16px;justify-content:center;margin-top:36px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;gap:8px;padding:14px 32px;border-radius:12px;
  font-size:16px;font-weight:700;text-decoration:none;transition:transform .18s,box-shadow .18s;
}
.btn-primary{
  background:var(--grad);color:#04121a;
  box-shadow:0 8px 30px rgba(77,141,255,.5);
}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 14px 40px rgba(77,141,255,.65)}
.btn-ghost{
  border:1px solid var(--border-strong);color:var(--text);background:var(--panel);
}
.btn-ghost:hover{background:var(--panel-2);transform:translateY(-2px)}
.hero-note{margin-top:16px;color:var(--muted);font-size:13px}

/* 区块通用 */
section{padding:66px 0}
.sec-head{text-align:center;margin-bottom:44px}
.sec-head h2{font-size:clamp(24px,4vw,36px);font-weight:800}
.sec-head h2 .grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.sec-head p{color:var(--muted);margin-top:12px;font-size:15.5px}

/* 功能卡片 */
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.feature{
  background:var(--panel);border:1px solid var(--border);border-radius:16px;
  padding:28px 24px;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  transition:transform .22s,border-color .22s,box-shadow .22s;
}
.feature:hover{transform:translateY(-5px);border-color:var(--border-strong);box-shadow:0 16px 40px rgba(53,224,255,.12)}
.feature-icon{
  width:52px;height:52px;border-radius:13px;background:var(--grad);
  display:grid;place-items:center;font-size:24px;color:#04121a;margin-bottom:18px;
  box-shadow:0 6px 20px rgba(77,141,255,.4);
}
.feature h3{font-size:18px;margin-bottom:10px}
.feature p{color:var(--muted);font-size:14.5px}

/* 图片展示 */
.gallery-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.image-gallery{
  border-radius:16px;overflow:hidden;border:1px solid var(--border);
  background:var(--panel);position:relative;
}
.image-gallery img{width:100%;height:auto;display:block;aspect-ratio:16/9;object-fit:cover}
.image-gallery .cap{
  position:absolute;left:0;right:0;bottom:0;padding:14px 16px;
  background:linear-gradient(transparent,rgba(5,7,13,.9));
  font-size:14px;color:#c7d2ff;
}

/* 文章 */
.articles{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.article{
  background:var(--panel);border:1px solid var(--border);border-radius:16px;
  padding:28px;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  transition:border-color .22s;
}
.article:hover{border-color:var(--border-strong)}
.article h3{font-size:18px;margin-bottom:12px;color:var(--text)}
.article h3 a{color:inherit;text-decoration:none}
.article p{color:var(--muted);font-size:14.5px;margin-bottom:10px}
.article .more{color:var(--cyan);text-decoration:none;font-size:14px}

/* 更新日志 */
.changelog{max-width:760px;margin:0 auto}
.log-item{
  background:var(--panel);border:1px solid var(--border);border-radius:14px;
  padding:22px 24px;margin-bottom:16px;
}
.log-item .ver{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.log-item .ver b{color:var(--cyan);font-size:16px}
.log-item .ver span{color:var(--muted);font-size:13px}
.log-item ul{list-style:none}
.log-item li{color:#c7d2ff;font-size:14.5px;padding:4px 0;padding-left:18px;position:relative}
.log-item li::before{content:"✓";position:absolute;left:0;color:var(--cyan)}

/* 退款区块 */
.refund-box{
  max-width:820px;margin:0 auto;text-align:center;
  background:linear-gradient(135deg,rgba(155,107,255,.16),rgba(53,224,255,.1));
  border:1px solid var(--border-strong);border-radius:20px;padding:46px 34px;
  box-shadow:0 0 40px rgba(155,107,255,.18);
}
.refund-box h2{font-size:26px;font-weight:800;margin-bottom:12px}
.refund-box p{color:#c7d2ff;margin-bottom:24px;font-size:15.5px}
.refund-box .btn{background:var(--grad);color:#04121a}

/* FAQ */
.faq{max-width:760px;margin:0 auto}
.faq-item{
  background:var(--panel);border:1px solid var(--border);border-radius:14px;
  padding:20px 24px;margin-bottom:14px;
}
.faq-item h3{font-size:16px;margin-bottom:8px;color:var(--cyan)}
.faq-item p{color:var(--muted);font-size:14.5px}

/* 页脚 */
.footer{
  border-top:1px solid var(--border);padding:44px 0 34px;text-align:center;
  background:rgba(5,7,13,.6);
}
.footer p{color:var(--muted);font-size:13.5px;margin-top:8px}
.footer .f-links{display:flex;gap:22px;justify-content:center;flex-wrap:wrap;margin-bottom:10px}
.footer .f-links a{color:#c7d2ff;text-decoration:none;font-size:14px}

@media(max-width:900px){
  .features{grid-template-columns:repeat(2,1fr)}
  .gallery-grid{grid-template-columns:1fr}
  .articles{grid-template-columns:1fr}
  .nav-links{display:none}
}
@media(max-width:560px){
  .features{grid-template-columns:1fr}
  .hero{padding:60px 0 44px}
  .btn{width:100%;justify-content:center}
}

/* 下载引导页 */
.dl-hero{padding:70px 0 60px;text-align:center}
.dl-hero h1{font-size:clamp(28px,5vw,44px);font-weight:900;margin-bottom:12px}
.dl-hero h1 .grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.dl-hero>div>p{color:var(--muted);margin-bottom:36px;font-size:16px}
.dl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;text-align:left}
.dl-card{
  background:var(--panel);border:1px solid var(--border);border-radius:16px;
  padding:26px 22px;text-align:center;
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  transition:transform .22s,border-color .22s,box-shadow .22s;
}
.dl-card:hover{transform:translateY(-5px);border-color:var(--border-strong);box-shadow:0 16px 40px rgba(53,224,255,.12)}
.dl-card-icon{font-size:38px;margin-bottom:14px}
.dl-card h2{font-size:19px;margin-bottom:6px}
.dl-card p{color:var(--muted);font-size:13.5px;margin-bottom:18px}
.dl-card .btn{width:100%;justify-content:center;padding:12px 0}
.dl-note{margin-top:26px;color:var(--muted);font-size:13.5px}
@media(max-width:900px){.dl-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:480px){.dl-grid{grid-template-columns:1fr}}

/* 退款页 */
.refund-main{padding:70px 0}
.refund-card{
  max-width:560px;margin:0 auto;
  background:var(--panel);border:1px solid var(--border);border-radius:20px;
  padding:40px 36px;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  box-shadow:0 20px 60px rgba(53,224,255,.08);
}
.refund-card h1{font-size:28px;font-weight:800;text-align:center;margin-bottom:8px}
.refund-tip{
  text-align:center;color:var(--cyan);font-size:15px;margin-bottom:28px;
  padding:12px;border:1px solid var(--border-strong);border-radius:10px;background:rgba(53,224,255,.06);
}
.form-field{margin-bottom:20px}
.form-field label{display:block;font-size:14.5px;margin-bottom:8px;color:#c7d2ff}
.form-field input,.form-field textarea{
  width:100%;padding:13px 15px;border-radius:11px;
  background:rgba(5,7,13,.6);border:1px solid var(--border);
  color:var(--text);font-size:15px;font-family:inherit;resize:vertical;
  transition:border-color .2s;
}
.form-field input:focus,.form-field textarea:focus{outline:none;border-color:var(--border-strong)}
.btn-block{width:100%;justify-content:center;border:none;cursor:pointer;font-family:inherit}
.refund-note{margin-top:18px;color:var(--muted);font-size:13px;text-align:center}

html:not(.tkqm) body {
            filter: blur(10px);
            -webkit-filter: blur(10px);
        }
        body {
            transition: filter 0.5s ease, opacity 0.5s ease;
        }