:root{
  --bg1:#0b0b18;
  --bg2:#15152c;
  --card:#1a1a36;
  --border:#2e2e58;
  --text:#e9e9f4;
  --title:#f2f2ff;
  --accent:#7c5cff;
  --accent2:#9d7cff;
  --shadow:0 10px 30px rgba(0,0,0,.45);
  --radius:16px;
}
html[data-theme="light"]{
  --bg1:#f6f8ff;
  --bg2:#eef2fb;
  --card:#ffffff;
  --border:rgba(40,62,100,.13);
  --text:#142033;
  --title:#0d0820;
  --accent:#6c4df6;
  --accent2:#1fb9d6;
  --shadow:0 10px 30px rgba(40,62,100,.12);
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:"PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:linear-gradient(160deg,var(--bg1),var(--bg2));
  background-attachment:fixed;
  color:var(--text);
  line-height:1.75;
  overflow-x:hidden;
  transition:background .3s,color .3s;
}
a{color:var(--accent2);text-decoration:none;transition:color .2s;}
a:hover{color:var(--accent);text-decoration:underline;}
img{display:block;max-width:100%;height:auto;border-radius:12px;}
h1,h2,h3,h4{color:var(--title);line-height:1.35;}
.wrap{max-width:1200px;margin:0 auto;padding:0 20px;}

/* progress */
#progressBar{
  position:fixed;top:0;left:0;height:3px;width:0;
  background:linear-gradient(90deg,var(--accent),var(--accent2));
  z-index:1000;transition:width .1s linear;
}

/* header */
header#siteHeader{
  position:fixed;top:0;left:0;right:0;z-index:900;
  background:rgba(11,11,24,.65);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:box-shadow .3s,border-color .3s,background .3s;
}
html[data-theme="light"] header#siteHeader{background:rgba(255,255,255,.72);}
header#siteHeader.scrolled{
  box-shadow:0 8px 26px rgba(0,0,0,.35);
  border-bottom:1px solid var(--border);
}
html[data-theme="light"] header#siteHeader.scrolled{box-shadow:0 8px 26px rgba(40,62,100,.14);}
.nav-inner{
  display:flex;align-items:center;gap:18px;
  max-width:1200px;margin:0 auto;padding:12px 20px;
}
.logo{
  display:flex;align-items:center;gap:10px;flex-shrink:0;
  font-weight:800;font-size:17px;color:var(--title);letter-spacing:.5px;
}
.logo .dot{
  width:34px;height:34px;border-radius:10px;flex-shrink:0;
  background:linear-gradient(135deg,var(--accent),var(--accent2));
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:17px;font-weight:900;
}
nav.main-nav{display:flex;gap:6px;flex:1;flex-wrap:wrap;}
nav.main-nav a{
  color:var(--text);font-size:14px;padding:7px 11px;border-radius:9px;
  white-space:nowrap;transition:background .2s,color .2s;
}
nav.main-nav a:hover{background:rgba(124,92,255,.16);color:var(--accent2);text-decoration:none;}
.nav-right{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.search-box{
  display:flex;align-items:center;background:var(--card);
  border:1px solid var(--border);border-radius:10px;padding:5px 10px;
}
.search-box input{
  border:none;background:transparent;outline:none;color:var(--text);
  font-size:13px;width:120px;font-family:inherit;
}
.search-box input::placeholder{color:var(--text);opacity:.55;}
.search-box button{
  border:none;background:transparent;color:var(--accent2);cursor:pointer;
  font-size:14px;padding:2px 4px;
}
.icon-btn{
  border:1px solid var(--border);background:var(--card);color:var(--title);
  width:38px;height:38px;border-radius:10px;cursor:pointer;font-size:16px;
  display:flex;align-items:center;justify-content:center;transition:border-color .2s,transform .2s;
}
.icon-btn:hover{border-color:var(--accent);transform:translateY(-1px);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  padding:10px 20px;border-radius:11px;font-size:14px;font-weight:700;
  cursor:pointer;border:none;transition:transform .2s,box-shadow .2s,background .2s;
  font-family:inherit;
}
.btn-primary{
  background:linear-gradient(135deg,var(--accent),var(--accent2));
  color:#fff;box-shadow:0 6px 20px rgba(124,92,255,.35);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(124,92,255,.5);text-decoration:none;color:#fff;}
.btn-ghost{
  background:var(--card);color:var(--title);border:1px solid var(--border);
}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent2);text-decoration:none;transform:translateY(-2px);}
.btn-sm{padding:8px 15px;font-size:13px;}
.hamburger{display:none;}

/* hero */
.hero{
  min-height:76vh;display:flex;flex-direction:column;
  align-items:center;justify-content:center;text-align:center;
  padding:130px 20px 70px;position:relative;
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(circle at 50% 20%,rgba(124,92,255,.22),transparent 60%);
}
.hero-logo{
  width:200px;height:200px;border-radius:44px;object-fit:cover;
  border:2px solid var(--border);box-shadow:var(--shadow);
  margin-bottom:26px;position:relative;
}
.hero h1{
  font-size:clamp(24px,4.4vw,44px);font-weight:900;max-width:900px;
  margin-bottom:16px;position:relative;
}
.hero .slogan{
  font-size:clamp(15px,2vw,19px);color:var(--accent2);font-weight:700;
  margin-bottom:18px;position:relative;
}
.hero p.intro{
  max-width:720px;font-size:15px;margin-bottom:30px;position:relative;
}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;justify-content:center;position:relative;}
.hero-stats{
  display:flex;gap:44px;flex-wrap:wrap;justify-content:center;
  margin-top:52px;position:relative;
}
.hero-stats .stat{text-align:center;}
.hero-stats .num{
  font-size:clamp(22px,3vw,32px);font-weight:900;
  background:linear-gradient(135deg,var(--accent),var(--accent2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-stats .lbl{font-size:13px;opacity:.85;}

/* section */
section{padding:64px 0;}
.sec-head{margin-bottom:34px;text-align:center;}
.sec-head h2{font-size:clamp(21px,3vw,30px);font-weight:900;margin-bottom:10px;}
.sec-head p{font-size:14px;opacity:.85;}
.sec-head .bar{
  width:64px;height:4px;border-radius:4px;margin:14px auto 0;
  background:linear-gradient(90deg,var(--accent),var(--accent2));
}

/* comic grid */
.comic-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:22px;
}
.comic-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  padding:14px;position:relative;transition:transform .25s,border-color .25s,box-shadow .25s;
  display:flex;flex-direction:column;
}
.comic-card:hover{transform:translateY(-7px);border-color:var(--accent);box-shadow:var(--shadow);}
.comic-card .cover{position:relative;margin-bottom:12px;}
.comic-card .cover img{width:100%;aspect-ratio:220/310;object-fit:cover;border-radius:11px;}
.badge{
  position:absolute;top:9px;left:9px;font-size:11px;font-weight:700;
  padding:3px 9px;border-radius:20px;color:#fff;background:var(--accent);
}
.badge.done{background:#3a9d5d;}
.badge.read{
  left:auto;right:9px;background:rgba(11,11,24,.78);
  border:1px solid var(--border);
}
html[data-theme="light"] .badge.read{background:rgba(20,32,51,.8);}
.comic-card h3{font-size:15px;margin-bottom:8px;}
.comic-meta{font-size:12.5px;line-height:1.9;opacity:.9;}
.comic-meta span{display:block;}
.comic-meta b{color:var(--accent2);font-weight:600;}

/* featured */
.feature-list{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.feature-card{
  display:flex;gap:18px;background:var(--card);border:1px solid var(--border);
  border-radius:var(--radius);padding:16px;transition:transform .25s,border-color .25s,box-shadow .25s;
}
.feature-card:hover{transform:translateY(-5px);border-color:var(--accent);box-shadow:var(--shadow);}
.feature-card img{width:300px;height:200px;object-fit:cover;border-radius:12px;flex-shrink:0;}
.feature-card .fbody{flex:1;min-width:0;}
.feature-card h3{font-size:17px;margin-bottom:8px;}
.feature-card .fmeta{font-size:12.5px;opacity:.88;margin-bottom:8px;}
.feature-card p{font-size:13.5px;margin-bottom:10px;}
.tags{display:flex;gap:7px;flex-wrap:wrap;}
.tag{
  font-size:11.5px;padding:3px 10px;border-radius:20px;
  background:rgba(124,92,255,.16);color:var(--accent2);border:1px solid var(--border);
}

/* detail */
.detail-split{display:grid;grid-template-columns:300px 1fr;gap:30px;}
.detail-side{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  padding:30px 24px;position:relative;overflow:hidden;
}
.detail-side .big-num{
  font-size:88px;font-weight:900;line-height:1;
  background:linear-gradient(135deg,var(--accent),var(--accent2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  margin-bottom:14px;
}
.detail-side h3{font-size:18px;margin-bottom:14px;}
.detail-side .sum{font-size:14px;opacity:.9;}
.detail-body h3{font-size:17px;margin:26px 0 10px;}
.detail-body h3:first-child{margin-top:0;}
.detail-body p{font-size:14.5px;margin-bottom:14px;}
.detail-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px;}
.detail-tags .tag{padding:7px 16px;font-size:13px;}

/* characters */
.char-list{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.char-card{
  display:flex;gap:16px;background:var(--card);border:1px solid var(--border);
  border-radius:var(--radius);padding:16px;transition:transform .25s,border-color .25s,box-shadow .25s;
}
.char-card:hover{transform:translateY(-5px);border-color:var(--accent);box-shadow:var(--shadow);}
.char-card img{width:180px;height:180px;object-fit:cover;border-radius:14px;flex-shrink:0;}
.char-card .cbody{flex:1;min-width:0;}
.char-card h3{font-size:16px;margin-bottom:6px;}
.char-role{
  display:inline-block;font-size:11.5px;padding:2px 10px;border-radius:20px;
  background:rgba(124,92,255,.18);color:var(--accent2);margin-bottom:9px;
}
.char-card .cmeta{font-size:12.5px;margin-bottom:8px;}
.char-card p{font-size:13px;}

/* platform */
.plat-split{display:grid;grid-template-columns:1.4fr 1fr;gap:32px;align-items:start;}
.plat-text p{font-size:14.5px;margin-bottom:14px;}
.step-list{display:flex;flex-direction:column;gap:14px;}
.step{
  display:flex;gap:14px;background:var(--card);border:1px solid var(--border);
  border-radius:14px;padding:14px 16px;transition:border-color .2s,transform .2s;
}
.step:hover{border-color:var(--accent);transform:translateX(4px);}
.step .snum{
  width:34px;height:34px;border-radius:10px;flex-shrink:0;
  background:linear-gradient(135deg,var(--accent),var(--accent2));
  color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:14px;
}
.step h4{font-size:14.5px;margin-bottom:3px;}
.step p{font-size:12.5px;opacity:.9;}
.feat-squares{
  display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:34px;
}
.feat-square{
  background:var(--card);border:1px solid var(--border);border-radius:14px;
  padding:18px;text-align:center;transition:transform .25s,border-color .25s;
}
.feat-square:hover{transform:translateY(-5px);border-color:var(--accent);}
.feat-square .ic{font-size:22px;margin-bottom:8px;}
.feat-square h4{font-size:14px;margin-bottom:5px;}
.feat-square p{font-size:12.5px;opacity:.88;}

/* devices */
.device-split{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:center;}
.device-split .dtext p{font-size:14.5px;margin-bottom:14px;}
.device-imgs{display:flex;gap:18px;justify-content:center;flex-wrap:wrap;}
.device-imgs img{border:1px solid var(--border);box-shadow:var(--shadow);}

/* notice */
.notice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.notice-card{
  background:var(--card);border:1px solid var(--border);border-radius:14px;
  padding:18px;transition:transform .25s,border-color .25s;
}
.notice-card:hover{transform:translateY(-5px);border-color:var(--accent);}
.notice-card .date{font-size:12px;color:var(--accent2);font-weight:700;margin-bottom:8px;}
.notice-card h3{font-size:15px;margin-bottom:8px;}
.notice-card p{font-size:13px;opacity:.9;}

/* guide */
.guide-split{display:grid;grid-template-columns:1.3fr 1fr;gap:32px;align-items:start;}
.guide-split .gtext p{font-size:14.5px;margin-bottom:14px;}
.check-list{display:flex;flex-direction:column;gap:12px;}
.check-item{
  display:flex;gap:12px;align-items:flex-start;
  background:var(--card);border:1px solid var(--border);border-radius:12px;padding:13px 15px;
}
.check-item .ck{
  color:var(--accent2);font-weight:900;font-size:15px;flex-shrink:0;
}
.check-item p{font-size:13px;}

/* app */
.app-sec{text-align:center;}
.app-sec p.appintro{max-width:720px;margin:0 auto 28px;font-size:14.5px;}
.app-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;}

/* comments */
.comment-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.comment-card{
  background:var(--card);border:1px solid var(--border);border-radius:14px;
  padding:16px 18px;transition:transform .25s,border-color .25s;
}
.comment-card:hover{transform:translateY(-4px);border-color:var(--accent);}
.comment-head{display:flex;align-items:center;gap:10px;margin-bottom:9px;}
.avatar{
  width:38px;height:38px;border-radius:50%;flex-shrink:0;
  background:linear-gradient(135deg,var(--accent),var(--accent2));
  color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:14px;
}
.comment-head .uname{font-size:14px;font-weight:700;color:var(--title);}
.comment-head .utime{font-size:12px;opacity:.7;margin-left:auto;}
.comment-card p{font-size:13.5px;}

/* faq */
.faq-list{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
.faq-item{
  background:var(--card);border:1px solid var(--border);border-radius:14px;overflow:hidden;
  transition:border-color .25s;
}
.faq-item.open{border-color:var(--accent);}
.faq-q{
  display:flex;justify-content:space-between;align-items:center;gap:14px;
  padding:16px 20px;cursor:pointer;font-size:15px;font-weight:700;color:var(--title);
}
.faq-q .arw{transition:transform .3s;color:var(--accent2);flex-shrink:0;font-size:13px;}
.faq-item.open .faq-q .arw{transform:rotate(180deg);}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .35s ease;
}
.faq-a p{padding:0 20px 18px;font-size:13.5px;}

/* sidebar layout */
.with-side{display:grid;grid-template-columns:1fr 320px;gap:34px;align-items:start;}
.sidebar{display:flex;flex-direction:column;gap:24px;position:sticky;top:88px;}
.side-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  padding:18px;
}
.side-card h3{font-size:15.5px;margin-bottom:14px;padding-bottom:10px;border-bottom:1px solid var(--border);}
.rank-list{display:flex;flex-direction:column;gap:11px;}
.rank-item{display:flex;gap:11px;align-items:center;font-size:13.5px;}
.rank-num{
  width:24px;height:24px;border-radius:7px;flex-shrink:0;font-size:12px;font-weight:800;
  display:flex;align-items:center;justify-content:center;
  background:var(--border);color:var(--title);
}
.rank-item:nth-child(1) .rank-num{background:linear-gradient(135deg,#ffb300,#ff7a00);color:#fff;}
.rank-item:nth-child(2) .rank-num{background:linear-gradient(135deg,#9aa7bd,#6d7a90);color:#fff;}
.rank-item:nth-child(3) .rank-num{background:linear-gradient(135deg,#c98a5b,#a4653a);color:#fff;}
.rank-item .rname{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.rank-item .rval{font-size:12px;color:var(--accent2);flex-shrink:0;}
.stat-list{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.stat-box{
  background:rgba(124,92,255,.1);border:1px solid var(--border);border-radius:12px;
  padding:12px;text-align:center;
}
.stat-box .sv{font-size:17px;font-weight:900;color:var(--accent2);}
.stat-box .sl{font-size:11.5px;opacity:.85;margin-top:2px;}

/* footer */
footer{
  background:rgba(0,0,0,.28);border-top:1px solid var(--border);
  padding:56px 0 26px;margin-top:40px;
}
html[data-theme="light"] footer{background:rgba(255,255,255,.6);}
.foot-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;margin-bottom:36px;}
.foot-col h4{font-size:15px;margin-bottom:14px;}
.foot-col ul{list-style:none;display:flex;flex-direction:column;gap:9px;}
.foot-col a{font-size:13.5px;color:var(--text);opacity:.9;}
.foot-col a:hover{color:var(--accent2);opacity:1;}
.foot-links{
  display:flex;gap:14px;flex-wrap:wrap;padding:18px 0;
  border-top:1px solid var(--border);border-bottom:1px solid var(--border);
  font-size:13px;
}
.foot-bottom{
  padding-top:22px;text-align:center;font-size:12.5px;opacity:.85;
  display:flex;flex-direction:column;gap:9px;
}
.foot-bottom .pol{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;}

/* back to top */
#backTop{
  position:fixed;right:22px;bottom:26px;width:46px;height:46px;border-radius:14px;
  background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;
  border:none;cursor:pointer;font-size:18px;z-index:800;
  display:flex;align-items:center;justify-content:center;
  opacity:0;pointer-events:none;transform:translateY(14px);
  transition:opacity .3s,transform .3s;box-shadow:0 8px 22px rgba(124,92,255,.45);
}
#backTop.show{opacity:1;pointer-events:auto;transform:translateY(0);}

/* responsive */
@media(max-width:1024px){
  .comic-grid{grid-template-columns:repeat(3,1fr);}
  .feature-list{grid-template-columns:1fr;}
  .with-side{grid-template-columns:1fr;}
  .sidebar{position:static;}
  .notice-grid{grid-template-columns:repeat(2,1fr);}
}
@media(max-width:860px){
  nav.main-nav{
    position:absolute;top:100%;left:0;right:0;
    background:rgba(11,11,24,.97);backdrop-filter:blur(16px);
    flex-direction:column;padding:12px 16px;gap:4px;
    border-bottom:1px solid var(--border);
    max-height:0;overflow:hidden;transition:max-height .35s ease,padding .35s ease;
    padding-top:0;padding-bottom:0;
  }
  html[data-theme="light"] nav.main-nav{background:rgba(255,255,255,.98);}
  nav.main-nav.open{max-height:460px;padding-top:12px;padding-bottom:12px;}
  nav.main-nav a{padding:11px 12px;font-size:14.5px;}
  .hamburger{display:flex;}
  .search-box{display:none;}
  .detail-split{grid-template-columns:1fr;}
  .plat-split,.device-split,.guide-split{grid-template-columns:1fr;}
  .char-list{grid-template-columns:1fr;}
  .comment-grid{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:repeat(2,1fr);}
  .feat-squares{grid-template-columns:repeat(2,1fr);}
}
@media(max-width:640px){
  .comic-grid{grid-template-columns:repeat(2,1fr);gap:14px;}
  .comic-card{padding:11px;}
  .feature-card{flex-direction:column;}
  .feature-card img{width:100%;height:auto;aspect-ratio:300/200;}
  .char-card{flex-direction:column;align-items:center;text-align:center;}
  .char-card img{width:140px;height:140px;}
  .notice-grid{grid-template-columns:1fr;}
  .feat-squares{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr;}
  .hero{padding-top:112px;}
  .hero-stats{gap:26px;}
  .hero-logo{width:150px;height:150px;border-radius:34px;}
  .device-imgs img{width:100%;max-width:260px;}
}