/* ==============================
   三号动漫 · 全站共享样式
   ============================== */
:root{
  --bg:#0B0F2A;
  --bg-2:#141A38;
  --bg-3:#0E1432;
  --surface:rgba(255,255,255,0.04);
  --surface-2:rgba(255,255,255,0.08);
  --border:rgba(124,58,237,0.28);
  --primary:#7C3AED;
  --primary-2:#EC4899;
  --accent:#22D3EE;
  --warning:#FFD166;
  --text:#E9ECFF;
  --text-dim:#A8B0D8;
  --muted:#6E78A6;
  --radius:18px;
  --radius-lg:24px;
  --shadow:0 14px 40px rgba(7,10,30,.55), 0 2px 0 rgba(255,255,255,.04) inset;
  --grad-1:linear-gradient(135deg,#7C3AED 0%,#EC4899 100%);
  --grad-2:linear-gradient(135deg,#22D3EE 0%,#7C3AED 100%);
  --grad-soft:linear-gradient(180deg,rgba(124,58,237,.18),rgba(236,72,153,0) 60%);
  --container:1180px;
  --nav-h:64px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei","微软雅黑","Hiragino Sans GB",sans-serif;
  background:radial-gradient(1200px 800px at 20% -10%,rgba(124,58,237,.25),transparent 60%),
             radial-gradient(1000px 700px at 110% 10%,rgba(34,211,238,.18),transparent 55%),
             linear-gradient(180deg,#070A20 0%,#0B0F2A 30%,#0B0F2A 100%);
  color:var(--text);
  line-height:1.65;
  font-size:16px;
  min-height:100vh;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease, opacity .2s ease}
a:hover{color:#fff}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,h4{font-weight:700;line-height:1.25;margin:0 0 .6em;color:#fff}
h1{font-size:42px;letter-spacing:.5px}
h2{font-size:30px}
h3{font-size:22px}
p{margin:0 0 1em}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}

/* ===== Nav ===== */
.nav{position:sticky;top:0;z-index:50;height:var(--nav-h);
  display:flex;align-items:center;
  background:rgba(11,15,42,.35);backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;transition:background .25s ease,border-color .25s ease}
.nav.scrolled{background:rgba(11,15,42,.85);border-color:rgba(124,58,237,.18)}
.nav .container{display:flex;align-items:center;gap:24px;width:100%}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.5px}
.brand img{width:34px;height:34px;border-radius:8px;box-shadow:0 4px 18px rgba(124,58,237,.45)}
.brand-text{display:flex;flex-direction:column;line-height:1.05}
.brand-text .name{font-size:18px;color:#fff}
.brand-text .sub{font-size:11px;color:var(--text-dim);letter-spacing:1px}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto;flex-wrap:wrap}
.nav-links a{padding:8px 14px;border-radius:999px;font-size:14px;color:var(--text-dim)}
.nav-links a:hover{background:var(--surface-2);color:#fff}
.nav-links a.active{background:var(--grad-1);color:#fff;box-shadow:0 6px 18px rgba(236,72,153,.35)}
.nav-cta{margin-left:auto;display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;border-radius:999px;font-weight:700;font-size:14px;color:#fff;
  background:var(--grad-1);box-shadow:0 10px 26px rgba(236,72,153,.32);white-space:nowrap}
.nav-cta:hover{transform:translateY(-1px);color:#fff}
.nav-toggle{display:none;width:40px;height:40px;border-radius:10px;background:var(--surface-2)}

/* ===== Buttons ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:999px;font-weight:700;font-size:15px;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease}
.btn-primary{background:var(--grad-1);color:#fff;box-shadow:0 14px 30px rgba(236,72,153,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 38px rgba(236,72,153,.5);color:#fff}
.btn-ghost{background:var(--surface-2);color:#fff;border:1px solid var(--border)}
.btn-ghost:hover{background:rgba(124,58,237,.2);color:#fff}
.btn .arrow{font-size:18px}

/* ===== Hero ===== */
.hero{position:relative;padding:64px 0 88px;overflow:hidden}
.hero::before{content:"";position:absolute;inset:-1px;
  background:radial-gradient(700px 320px at 12% 0%,rgba(124,58,237,.45),transparent 60%),
             radial-gradient(640px 320px at 92% 0%,rgba(34,211,238,.35),transparent 60%);
  pointer-events:none;z-index:0}
.hero .container{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero h1{font-size:54px;line-height:1.1;margin-bottom:18px;background:linear-gradient(135deg,#fff 0%,#C8B3FF 60%,#FFB6E1 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero h1 em{font-style:normal;color:#FFD166}
.hero .lede{font-size:18px;color:var(--text-dim);max-bottom:480px}
.hero .tagrow{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0 28px}
.tagrow .tag{padding:6px 14px;border-radius:999px;font-size:13px;color:#fff;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.1)}
.hero .cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:8px}
.hero .meta{display:flex;gap:24px;flex-wrap:wrap;margin-top:36px;color:var(--text-dim);font-size:14px}
.hero .meta .item{display:flex;gap:8px;align-items:center}
.hero .meta b{color:#fff}
.hero .device{position:relative;display:flex;justify-content:center;align-items:center}
.hero .device img{border-radius:22px;box-shadow:0 30px 80px rgba(7,10,30,.7), 0 2px 0 rgba(255,255,255,.1) inset;border:1px solid rgba(255,255,255,.08)}
.hero .device::after{content:"";position:absolute;width:120%;height:120%;top:-10%;left:-10%;
  background:radial-gradient(closest-side,rgba(124,58,237,.4),transparent 70%);
  z-index:-1;filter:blur(20px)}

/* ===== Trust strip ===== */
.trust{padding:34px 0;border-block:1px solid rgba(124,58,237,.18);
  background:linear-gradient(180deg,rgba(124,58,237,.07),transparent)}
.trust .grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;text-align:center}
.trust .cell{padding:8px}
.trust .num{font-size:34px;font-weight:800;background:var(--grad-1);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1}
.trust .lbl{margin-top:8px;color:var(--text-dim);font-size:13px}

/* ===== Sections ===== */
section{padding:72px 0;position:relative}
.section-head{text-align:center;max-width:760px;margin:0 auto 44px}
.section-head .eyebrow{display:inline-block;padding:4px 14px;border-radius:999px;font-size:12px;letter-spacing:2px;color:#fff;background:var(--surface-2);border:1px solid var(--border);text-transform:uppercase;margin-bottom:16px}
.section-head h2{font-size:36px}
.section-head p{color:var(--text-dim);font-size:16px;margin-top:8px}

/* ===== Feature cards ===== */
.features .grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.feature{position:relative;padding:26px 24px;border-radius:var(--radius-lg);
  background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02));
  border:1px solid var(--border);box-shadow:var(--shadow);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease}
.feature:hover{transform:translateY(-4px);border-color:rgba(236,72,153,.5);box-shadow:0 24px 60px rgba(7,10,30,.65)}
.feature .icon{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:var(--grad-1);color:#fff;margin-bottom:14px;box-shadow:0 10px 22px rgba(236,72,153,.35)}
.feature h3{font-size:19px;margin-bottom:8px}
.feature p{color:var(--text-dim);font-size:14.5px;margin:0}

/* ===== Screenshot gallery ===== */
.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.gallery .shot{position:relative;border-radius:var(--radius);overflow:hidden;
  background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02));
  border:1px solid var(--border);box-shadow:var(--shadow)}
.gallery .shot img{width:100%;height:auto;display:block;transition:transform .35s ease}
.gallery .shot:hover img{transform:scale(1.04)}
.gallery .shot .caption{position:absolute;left:0;right:0;bottom:0;padding:10px 12px;font-size:12.5px;color:#fff;
  background:linear-gradient(180deg,transparent,rgba(0,0,0,.75));letter-spacing:.5px}

/* ===== Depth content cards ===== */
.depth .grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.depth-card{position:relative;display:block;padding:26px;border-radius:var(--radius-lg);
  background:var(--grad-soft),linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  border:1px solid var(--border);box-shadow:var(--shadow);overflow:hidden}
.depth-card::after{content:"→";position:absolute;right:22px;bottom:22px;font-size:22px;color:#FFD166;transform:translateX(-6px);opacity:0;transition:transform .25s ease,opacity .25s ease}
.depth-card:hover::after{transform:translateX(0);opacity:1;color:#fff}
.depth-card .badge{display:inline-block;padding:4px 10px;border-radius:6px;background:rgba(124,58,237,.25);color:#C8B3FF;font-size:12px;letter-spacing:1px;margin-bottom:10px}
.depth-card h3{font-size:20px;margin-bottom:8px}
.depth-card p{color:var(--text-dim);font-size:14.5px;margin:0 0 14px}
.depth-card .more{color:#22D3EE;font-weight:700;font-size:13px}

/* ===== Reviews ===== */
.reviews .grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.review{padding:22px;background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02));border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}
.review .stars{color:#FFD166;letter-spacing:2px;font-size:16px;margin-bottom:8px}
.review p{color:#E9ECFF;font-size:15px;margin-bottom:12px;font-style:italic}
.review .who{display:flex;align-items:center;gap:10px;color:var(--text-dim);font-size:13px}
.review .avatar{width:34px;height:34px;border-radius:50%;background:var(--grad-2);display:grid;place-items:center;color:#fff;font-weight:800;font-size:14px}

/* ===== FAQ ===== */
.faq-list{max-width:880px;margin:0 auto;display:grid;gap:12px}
.faq-list details{background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02));
  border:1px solid var(--border);border-radius:14px;padding:18px 20px;transition:border-color .2s ease}
.faq-list details[open]{border-color:rgba(236,72,153,.5);box-shadow:var(--shadow)}
.faq-list summary{cursor:pointer;font-weight:700;color:#fff;font-size:16px;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:12px}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary::after{content:"+";color:#FFD166;font-size:22px;line-height:1;transition:transform .2s ease}
.faq-list details[open] summary::after{content:"−";transform:rotate(0)}
.faq-list .answer{color:var(--text-dim);font-size:14.5px;padding-top:12px;margin-top:12px;border-top:1px dashed rgba(124,58,237,.25)}

/* ===== Inner page hero ===== */
.pagehero{padding:60px 0 28px;position:relative}
.pagehero .crumb{color:var(--text-dim);font-size:13px;margin-bottom:16px}
.pagehero .crumb a{color:var(--text-dim)}
.pagehero .crumb a:hover{color:#fff}
.pagehero h1{font-size:42px;max-width:880px;background:linear-gradient(135deg,#fff,#C8B3FF 60%,#FFB6E1);-webkit-background-clip:text;background-clip:text;color:transparent}
.pagehero .lede{font-size:17px;color:var(--text-dim);max-width:760px;margin-top:14px}

/* ===== Article (inner pages) ===== */
.article{max-width:880px;margin:0 auto}
.article h2{margin-top:38px;font-size:24px;color:#fff;position:relative;padding-left:14px}
.article h2::before{content:"";position:absolute;left:0;top:6px;width:5px;height:22px;border-radius:3px;background:var(--grad-1)}
.article h3{margin-top:26px;font-size:19px;color:#fff}
.article p, .article li{color:var(--text-dim);font-size:15.5px}
.article ul,.article ol{padding-left:22px}
.article li{margin-bottom:6px}
.article .step{display:grid;grid-template-columns:auto 1fr;gap:18px;padding:18px;background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02));border:1px solid var(--border);border-radius:14px;margin:14px 0}
.article .step .n{width:42px;height:42px;border-radius:50%;background:var(--grad-1);color:#fff;display:grid;place-items:center;font-weight:800;flex-shrink:0;box-shadow:0 8px 18px rgba(236,72,153,.4)}
.article .step h3{margin:0 0 6px;color:#fff;font-size:17px}
.article .step p{margin:0;color:var(--text-dim);font-size:14.5px}
.article .callout{margin:24px 0;padding:18px 22px;border-radius:14px;background:rgba(34,211,238,.08);border-left:3px solid var(--accent);color:var(--text-dim)}
.article .callout b{color:#fff}
.article .grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin:22px 0}
.article .grid2 .card{padding:18px;border-radius:14px;border:1px solid var(--border);background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.02))}
.article .grid2 .card h4{margin:0 0 6px;color:#fff;font-size:16px}
.article .grid2 .card p{margin:0;font-size:14px}

/* ===== Download CTA band ===== */
.cta-band{padding:64px 0;background:linear-gradient(135deg,rgba(124,58,237,.18),rgba(236,72,153,.18));border-block:1px solid rgba(124,58,237,.25)}
.cta-band .inner{display:flex;gap:24px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.cta-band h2{font-size:30px;margin-bottom:6px}
.cta-band p{margin:0;color:var(--text-dim)}
.cta-band .cta{display:flex;gap:12px;flex-wrap:wrap}

/* ===== Footer ===== */
footer{padding:60px 0 24px;background:linear-gradient(180deg,transparent,rgba(7,10,30,.7));border-top:1px solid rgba(124,58,237,.18)}
footer .grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:28px}
footer h4{font-size:14px;color:#fff;letter-spacing:1.5px;text-transform:uppercase;margin-bottom:14px}
footer ul{list-style:none;padding:0;margin:0}
footer li{margin-bottom:8px;color:var(--text-dim);font-size:14px}
footer a{color:var(--text-dim)}
footer a:hover{color:#fff}
footer .desc{color:var(--text-dim);font-size:14px;margin-top:8px;line-height:1.7}
footer .legal{margin-top:36px;padding-top:18px;border-top:1px dashed rgba(124,58,237,.18);color:var(--muted);font-size:12.5px;line-height:1.7}
footer .legal strong{color:var(--text-dim)}
footer .badges{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
footer .badge{padding:4px 10px;border-radius:6px;background:rgba(255,255,255,.04);border:1px solid rgba(124,58,237,.18);font-size:12px;color:var(--text-dim)}
footer .copy{margin-top:18px;color:var(--muted);font-size:12.5px}

/* ===== Misc ===== */
.stars-row{color:#FFD166;letter-spacing:1.5px}
.reveal{opacity:0;transform:translateY(14px);transition:opacity .6s ease, transform .6s ease}
.reveal.in{opacity:1;transform:none}

/* ===== Responsive ===== */
@media (max-width: 980px){
  h1{font-size:32px}
  h2{font-size:24px}
  .hero{padding:48px 0 64px}
  .hero .container{grid-template-columns:1fr;gap:36px;text-align:left}
  .hero h1{font-size:38px}
  .trust .grid{grid-template-columns:repeat(3,1fr);gap:14px}
  .features .grid, .depth .grid, .reviews .grid{grid-template-columns:repeat(2,1fr)}
  .gallery{grid-template-columns:repeat(3,1fr)}
  .article .grid2{grid-template-columns:1fr}
  .nav-links{display:none;position:absolute;top:100%;right:16px;left:16px;flex-direction:column;align-items:stretch;background:rgba(11,15,42,.96);border:1px solid var(--border);border-radius:14px;padding:12px;margin-top:8px}
  .nav-links.open{display:flex}
  .nav-links a{padding:12px}
  .nav-toggle{display:grid;place-items:center;color:#fff;font-size:18px}
  .nav .nav-cta{margin-left:0}
  .cta-band .inner{flex-direction:column;align-items:flex-start}
}
@media (max-width: 620px){
  .container{padding:0 18px}
  .trust .grid{grid-template-columns:repeat(2,1fr)}
  .features .grid, .depth .grid, .reviews .grid, .gallery{grid-template-columns:1fr 1fr}
  .hero h1{font-size:30px}
  .hero .cta .btn{flex:1;padding:14px}
  .article .step{grid-template-columns:1fr}
  .article .step .n{margin-bottom:6px}
  footer .grid{grid-template-columns:1fr 1fr;gap:18px}
  .section-head h2{font-size:26px}
  h1{font-size:28px}
}
@media (max-width: 420px){
  .features .grid, .depth .grid, .reviews .grid, .gallery{grid-template-columns:1fr}
}