:root{
  --mya-bg:#f5f7fb;
  --mya-blue:#2563eb;
  --mya-cyan:#06b6d4;
  --mya-text:#1f2937;
  --mya-dim:#6b7280;
  --mya-card:#ffffff;
  --mya-line:#e5eaf3;
  --mya-shadow:0 10px 30px rgba(37,99,235,.10);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--mya-bg);color:var(--mya-text);font-family:"Microsoft YaHei","PingFang SC",Helvetica,Arial,sans-serif;line-height:1.7}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.mya-wrap{max-width:1140px;margin:0 auto;padding:0 22px}

.mya-nav{position:fixed;top:0;left:0;right:0;z-index:90;background:rgba(255,255,255,.85);backdrop-filter:blur(12px);transition:.3s;border-bottom:1px solid transparent}
.mya-nav.mya-stuck{background:#fff;border-bottom-color:var(--mya-line);box-shadow:0 6px 20px rgba(37,99,235,.08)}
.mya-nav-in{display:flex;align-items:center;justify-content:space-between;height:66px}
.mya-brand{font-size:22px;font-weight:800;color:var(--mya-blue)}
.mya-menu{display:flex;gap:28px;list-style:none}
.mya-menu a{font-size:15px;color:var(--mya-dim);transition:.2s}
.mya-menu a:hover,.mya-menu a.mya-cur{color:var(--mya-blue)}
.mya-toggle{display:none;background:#fff;border:1px solid var(--mya-line);color:var(--mya-text);font-size:15px;padding:6px 12px;border-radius:10px;cursor:pointer}

.mya-hero{padding:140px 0 70px;background:linear-gradient(180deg,#eaf1ff 0%,var(--mya-bg) 100%)}
.mya-hero-grid{display:grid;grid-template-columns:1fr 340px;gap:60px;align-items:center}
.mya-hero-badge{display:inline-block;font-size:13px;color:var(--mya-blue);background:#e6efff;padding:6px 14px;border-radius:30px;font-weight:600}
.mya-hero-title{font-size:44px;line-height:1.3;margin:20px 0 16px;font-weight:800}
.mya-hero-title em{font-style:normal;color:var(--mya-blue)}
.mya-hero-lead{color:var(--mya-dim);font-size:16px;max-width:520px}
.mya-actions{display:flex;flex-wrap:wrap;gap:14px;margin:28px 0}
.mya-btn{cursor:pointer;font-size:15px;padding:13px 28px;border-radius:30px;border:none;font-weight:700;transition:.2s}
.mya-btn-solid{background:linear-gradient(90deg,var(--mya-blue),#3b82f6);color:#fff;box-shadow:0 8px 20px rgba(37,99,235,.35)}
.mya-btn-solid:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(37,99,235,.45)}
.mya-btn-outline{background:#fff;color:var(--mya-blue);border:1.5px solid var(--mya-blue)}
.mya-btn-outline:hover{background:#eef4ff}
.mya-stats{display:flex;gap:36px}
.mya-stat b{font-size:28px;color:var(--mya-blue);display:block}
.mya-stat span{color:var(--mya-dim);font-size:13px}

.mya-phone{position:relative;width:280px;margin:0 auto;background:#fff;border-radius:38px;padding:12px;box-shadow:var(--mya-shadow),0 20px 50px rgba(37,99,235,.18);border:1px solid var(--mya-line)}
.mya-phone-notch{position:absolute;top:16px;left:50%;transform:translateX(-50%);width:90px;height:20px;background:#1f2937;border-radius:12px;z-index:2}
.mya-phone-screen{border-radius:28px;overflow:hidden;aspect-ratio:9/16}
.mya-phone-screen img{width:100%;height:100%;object-fit:cover}

.mya-section{padding:64px 0}
.mya-sec-head{text-align:center;margin-bottom:38px}
.mya-kicker{color:var(--mya-cyan);font-size:13px;letter-spacing:2px;font-weight:700}
.mya-title{font-size:30px;margin:8px 0 10px;font-weight:800}
.mya-sub{color:var(--mya-dim);font-size:15px}

.mya-feats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.mya-feat{background:var(--mya-card);border-radius:18px;padding:26px 20px;box-shadow:var(--mya-shadow);text-align:center;border:1px solid var(--mya-line)}
.mya-feat .mya-fic{width:54px;height:54px;border-radius:16px;margin:0 auto 14px;background:#e6efff;display:flex;align-items:center;justify-content:center}
.mya-feat .mya-fic svg{width:28px;height:28px;stroke:var(--mya-blue);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.mya-feat h3{font-size:16px;margin-bottom:6px}
.mya-feat p{font-size:13px;color:var(--mya-dim)}

.mya-version{background:var(--mya-card);border-radius:22px;box-shadow:var(--mya-shadow);border:1px solid var(--mya-line);padding:34px;display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:center}
.mya-version h3{font-size:22px;margin-bottom:12px}
.mya-version ul{list-style:none;color:var(--mya-dim);font-size:14px}
.mya-version li{padding:5px 0}
.mya-version li b{color:var(--mya-text)}
.mya-dlcard{background:linear-gradient(135deg,#eaf1ff,#e0f7fb);border-radius:18px;padding:26px;text-align:center}
.mya-dlcard .mya-ver{font-size:30px;font-weight:800;color:var(--mya-blue)}
.mya-dlcard p{font-size:13px;color:var(--mya-dim);margin:8px 0 16px}

.mya-hosts{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.mya-host-card{background:var(--mya-card);border-radius:18px;overflow:hidden;box-shadow:var(--mya-shadow);border:1px solid var(--mya-line);transition:.25s}
.mya-host-card:hover{transform:translateY(-5px)}
.mya-host-cover{position:relative;aspect-ratio:3/3.6}
.mya-host-cover img{width:100%;height:100%;object-fit:cover}
.mya-host-chip{position:absolute;top:10px;left:10px;background:#ef4444;color:#fff;font-size:11px;padding:3px 9px;border-radius:12px}
.mya-host-info{padding:13px 14px}
.mya-host-info h3{font-size:15px}
.mya-host-info p{font-size:12px;color:var(--mya-dim);margin-top:3px}

.mya-channels{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.mya-channel{background:var(--mya-card);border-radius:18px;overflow:hidden;box-shadow:var(--mya-shadow);border:1px solid var(--mya-line)}
.mya-channel img{aspect-ratio:4/2.4;object-fit:cover;width:100%}
.mya-channel-body{padding:16px}
.mya-channel-body h3{font-size:16px}
.mya-channel-body p{font-size:12px;color:var(--mya-dim);margin-top:4px}

.mya-reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.mya-review{background:var(--mya-card);border-radius:18px;padding:24px;box-shadow:var(--mya-shadow);border:1px solid var(--mya-line)}
.mya-review .mya-star{color:#f59e0b;letter-spacing:2px}
.mya-review p{font-size:14px;margin:10px 0}
.mya-review .mya-who{font-size:12px;color:var(--mya-blue)}

.mya-join{background:linear-gradient(120deg,#eaf1ff,#e0f7fb);border-radius:22px;padding:40px;display:flex;flex-wrap:wrap;gap:26px;justify-content:space-between;align-items:center;border:1px solid var(--mya-line)}
.mya-join h3{font-size:24px;margin-bottom:10px}
.mya-join p{color:var(--mya-dim);max-width:520px}
.mya-join-list{display:flex;flex-wrap:wrap;gap:14px;list-style:none}
.mya-join-list li{background:#fff;border-radius:14px;padding:14px 18px;font-size:13px;box-shadow:var(--mya-shadow)}
.mya-join-list b{display:block;font-size:18px;color:var(--mya-blue)}

.mya-faq{max-width:780px;margin:0 auto}
.mya-faq-item{background:var(--mya-card);border-radius:16px;margin-bottom:14px;border:1px solid var(--mya-line);box-shadow:var(--mya-shadow);overflow:hidden}
.mya-faq-q{width:100%;text-align:left;background:none;border:none;color:var(--mya-text);font-size:16px;padding:18px 22px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-family:inherit}
.mya-faq-q i{font-style:normal;color:var(--mya-blue);font-size:20px;transition:.3s}
.mya-faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.mya-faq-a p{padding:0 22px 18px;color:var(--mya-dim);font-size:14px}
.mya-faq-item.mya-open .mya-faq-a{max-height:260px}
.mya-faq-item.mya-open .mya-faq-q i{transform:rotate(45deg)}

.mya-foot{padding:34px 0;text-align:center;color:var(--mya-dim);font-size:13px;border-top:1px solid var(--mya-line);background:#fff}
.mya-foot p{margin:6px 0}

.mya-toast{position:fixed;left:50%;bottom:40px;transform:translateX(-50%) translateY(30px);background:var(--mya-blue);color:#fff;padding:13px 24px;border-radius:30px;opacity:0;pointer-events:none;transition:.3s;z-index:120;box-shadow:0 10px 30px rgba(37,99,235,.4)}
.mya-toast.mya-show{opacity:1;transform:translateX(-50%) translateY(0)}

.mya-doc{padding:120px 0 60px}
.mya-doc-head{margin-bottom:28px}
.mya-doc-crumb{color:var(--mya-dim);font-size:13px}
.mya-doc-crumb a{color:var(--mya-blue)}
.mya-doc-title{font-size:32px;margin:12px 0 8px}
.mya-doc-meta{color:var(--mya-dim);font-size:13px}
.mya-doc-body{background:var(--mya-card);border-radius:20px;padding:34px;box-shadow:var(--mya-shadow);border:1px solid var(--mya-line)}
.mya-doc-body h2{font-size:19px;margin:22px 0 10px}
.mya-doc-body h2:first-child{margin-top:0}
.mya-doc-body p,.mya-doc-body li{color:var(--mya-dim);font-size:14px;margin-bottom:8px}
.mya-doc-body ul{padding-left:20px}
.mya-doc-body a{color:var(--mya-blue)}
.mya-field{margin-bottom:18px}
.mya-field label{display:block;font-size:14px;margin-bottom:6px;color:var(--mya-text)}
.mya-field input,.mya-field select,.mya-field textarea{width:100%;background:#f8fafc;border:1px solid var(--mya-line);color:var(--mya-text);padding:12px;border-radius:10px;font-size:14px;font-family:inherit}
.mya-field textarea{min-height:120px;resize:vertical}

.mya-reveal{opacity:0;transform:translateY(26px);transition:opacity .6s ease,transform .6s ease}
.mya-reveal.mya-in{opacity:1;transform:none}

@media (max-width:860px){
  .mya-menu{position:fixed;top:66px;right:0;flex-direction:column;background:#fff;width:230px;height:calc(100vh - 66px);padding:26px;gap:20px;transform:translateX(100%);transition:.3s;box-shadow:-6px 0 20px rgba(0,0,0,.08)}
  .mya-menu.mya-menu-open{transform:none}
  .mya-toggle{display:block}
  .mya-hero-grid{grid-template-columns:1fr;gap:36px}
  .mya-hero-title{font-size:32px}
  .mya-feats{grid-template-columns:repeat(2,1fr)}
  .mya-hosts{grid-template-columns:repeat(2,1fr)}
  .mya-channels,.mya-reviews{grid-template-columns:1fr}
  .mya-version{grid-template-columns:1fr}
  .mya-stats{gap:20px}
}
.mya-doc-form{margin-top:18px}