:root{
  --bg-start:#0b0b18;
  --bg-end:#15152c;
  --card:#1a1a36;
  --card-hover:#20204a;
  --border:#2e2e58;
  --border-bright:#7c5cff;
  --text:#e9e9f4;
  --title:#f2f2ff;
  --accent:#7c5cff;
  --accent2:#9d7cff;
  --link:#b3a0ff;
  --link-hover:#d8ccff;
  --muted:#b9b9d6;
  --shadow:0 10px 30px rgba(0,0,0,.45);
}
[data-theme="light"]{
  --bg-start:#f6f8ff;
  --bg-end:#eef2fb;
  --card:#ffffff;
  --card-hover:#f2f5ff;
  --border:rgba(40,62,100,.13);
  --border-bright:#6c4df6;
  --text:#142033;
  --title:#0d0820;
  --accent:#6c4df6;
  --accent2:#1fb9d6;
  --link:#5a3fe0;
  --link-hover:#1fb9d6;
  --muted:#3d4a63;
  --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(--bg-start),var(--bg-end));
  background-attachment:fixed;
  color:var(--text);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  transition:background .35s ease,color .35s ease;
}
a{color:var(--link);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--link-hover);text-decoration:underline}
img{max-width:100%;display:block;border-radius:10px;background:var(--card)}
h1,h2,h3,h4{color:var(--title);line-height:1.3;font-weight:700}
h1{font-size:clamp(1.7rem,4vw,2.9rem)}
h2{font-size:clamp(1.35rem,2.6vw,2rem);margin-bottom:.6em}
h3{font-size:clamp(1.05rem,1.8vw,1.3rem)}
p{color:var(--text)}
.container{width:min(1240px,92%);margin:0 auto}
section{padding:64px 0}
.section-head{text-align:center;margin-bottom:44px}
.section-head p{color:var(--muted);max-width:680px;margin:10px auto 0}
.eyebrow{display:inline-block;font-size:.8rem;letter-spacing:.18em;text-transform:uppercase;color:var(--accent2);border:1px solid var(--border);border-radius:999px;padding:4px 14px;margin-bottom:14px}

/* progress */
#progress{position:fixed;top:0;left:0;height:3px;width:0;background:linear-gradient(90deg,var(--accent),var(--accent2));z-index:1200;transition:width .1s linear}

/* nav */
header.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);background:rgba(11,11,24,.55);border-bottom:1px solid transparent;transition:box-shadow .3s ease,border-color .3s ease,background .3s ease}
[data-theme="light"] header.site-header{background:rgba(246,248,255,.72)}
header.site-header.scrolled{border-bottom:1px solid var(--border);box-shadow:0 8px 24px rgba(0,0,0,.35)}
[data-theme="light"] header.site-header.scrolled{box-shadow:0 8px 24px rgba(40,62,100,.14)}
.nav-inner{display:flex;align-items:center;gap:18px;padding:12px 0}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo img{width:40px;height:40px;border-radius:10px}
.logo-text{font-weight:800;font-size:1.05rem;color:var(--title);white-space:nowrap}
.logo-text span{color:var(--accent2)}
nav.main-nav{margin-left:auto;display:flex;gap:6px;align-items:center}
nav.main-nav a{padding:8px 12px;border-radius:8px;font-size:.92rem;color:var(--text)}
nav.main-nav a:hover{background:var(--card);color:var(--link-hover);text-decoration:none}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:10px}
.search-box{display:flex;align-items:center;background:var(--card);border:1px solid var(--border);border-radius:999px;padding:6px 14px}
.search-box input{background:transparent;border:none;outline:none;color:var(--text);font-size:.9rem;width:130px;font-family:inherit}
.search-box input::placeholder{color:var(--muted)}
.search-box button{background:none;border:none;color:var(--accent2);cursor:pointer;font-size:.95rem}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 20px;border-radius:999px;border:1px solid transparent;font-size:.92rem;font-weight:600;cursor:pointer;transition:transform .2s ease,background .2s ease,box-shadow .2s ease;font-family:inherit}
.btn-primary{background:linear-gradient(120deg,var(--accent),var(--accent2));color:#fff;box-shadow:0 6px 20px rgba(124,92,255,.4)}
.btn-primary:hover{transform:translateY(-2px);text-decoration:none;color:#fff}
.btn-ghost{background:var(--card);border-color:var(--border);color:var(--text)}
.btn-ghost:hover{border-color:var(--border-bright);text-decoration:none;color:var(--link-hover)}
.theme-toggle{background:var(--card);border:1px solid var(--border);color:var(--text);width:40px;height:40px;border-radius:50%;cursor:pointer;font-size:1rem;display:flex;align-items:center;justify-content:center;transition:border-color .2s ease,transform .2s ease}
.theme-toggle:hover{border-color:var(--border-bright);transform:rotate(15deg)}
.hamburger{display:none;background:var(--card);border:1px solid var(--border);border-radius:10px;width:42px;height:42px;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:5px}
.hamburger span{display:block;width:20px;height:2px;background:var(--text);border-radius:2px;transition:.3s}
.hamburger.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.active span:nth-child(2){opacity:0}
.hamburger.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-menu{display:none;flex-direction:column;gap:4px;padding:10px 0 20px}
.mobile-menu.open{display:flex}
.mobile-menu a{padding:12px 14px;border-radius:10px;background:var(--card);border:1px solid var(--border);color:var(--text)}
.mobile-menu a:hover{text-decoration:none;border-color:var(--border-bright)}

/* hero */
.hero{min-height:76vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:140px 0 70px;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:radial-gradient(600px 300px at 50% 0%,rgba(124,92,255,.22),transparent 70%);pointer-events:none}
.hero-inner{position:relative;z-index:2;max-width:860px}
.hero-logo{width:200px;height:200px;border-radius:44px;margin:0 auto 26px;border:1px solid var(--border);box-shadow:var(--shadow)}
.hero h1{margin-bottom:16px}
.hero .slogan{font-size:clamp(1rem,2vw,1.25rem);color:var(--accent2);font-weight:600;margin-bottom:18px}
.hero .lead{max-width:640px;margin:0 auto 30px;color:var(--muted)}
.hero-cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-bottom:48px}
.hero-stats{display:flex;gap:44px;justify-content:center;flex-wrap:wrap}
.hero-stats .stat b{display:block;font-size:1.7rem;color:var(--title);font-weight:800}
.hero-stats .stat span{font-size:.86rem;color:var(--muted)}

/* grids */
.grid-comics{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.comic-card{background:var(--card);border:1px solid var(--border);border-radius:16px;overflow:hidden;position:relative;transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease}
.comic-card:hover{transform:translateY(-6px);border-color:var(--border-bright);box-shadow:var(--shadow)}
.comic-card .cover{width:100%;height:auto;aspect-ratio:220/310;object-fit:cover;border-radius:0}
.comic-card .badge{position:absolute;top:10px;left:10px;font-size:.72rem;padding:3px 10px;border-radius:999px;background:rgba(11,11,24,.78);color:#fff;border:1px solid rgba(255,255,255,.18)}
[data-theme="light"] .comic-card .badge{background:rgba(13,8,32,.8)}
.comic-card .views{position:absolute;top:10px;right:10px;font-size:.72rem;padding:3px 10px;border-radius:999px;background:linear-gradient(120deg,var(--accent),var(--accent2));color:#fff}
.comic-body{padding:14px 15px 18px}
.comic-body h3{font-size:1rem;margin-bottom:8px}
.comic-body ul{list-style:none;font-size:.82rem;color:var(--muted);display:grid;gap:4px}
.comic-body ul li span{color:var(--text)}
.tag{display:inline-block;font-size:.72rem;padding:2px 9px;border-radius:999px;border:1px solid var(--border);color:var(--accent2);margin-top:10px}

/* featured */
.featured-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:16px;padding:16px;transition:border-color .25s ease,transform .25s ease}
.feature-card:hover{border-color:var(--border-bright);transform:translateY(-4px)}
.feature-card img{width:300px;height:200px;object-fit:cover;flex-shrink:0;border-radius:12px}
.feature-card .fc-body h3{margin-bottom:8px}
.feature-card .fc-body p{font-size:.88rem;color:var(--muted);margin-bottom:10px}
.feature-meta{font-size:.8rem;color:var(--muted);display:flex;gap:14px;flex-wrap:wrap;margin-bottom:10px}
.feature-tags{display:flex;gap:8px;flex-wrap:wrap}

/* detail */
.detail-wrap{display:grid;grid-template-columns:280px 1fr;gap:34px;align-items:start}
.detail-side{background:var(--card);border:1px solid var(--border);border-radius:20px;padding:32px 24px;position:sticky;top:100px}
.detail-side .num{font-size:4.4rem;font-weight:900;line-height:1;background:linear-gradient(120deg,var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent}
.detail-side .summary{margin-top:16px;font-size:.95rem;color:var(--muted)}
.detail-side .side-tags{margin-top:22px;display:flex;flex-wrap:wrap;gap:8px}
.detail-main article p{margin-bottom:16px}
.detail-main h3{margin:26px 0 10px}
.detail-features{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}
.detail-features div{flex:1 1 180px;background:var(--card);border:1px solid var(--border);border-radius:14px;padding:14px 18px;font-size:.88rem}
.detail-features div b{display:block;color:var(--accent2);margin-bottom:4px}

/* characters */
.char-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.char-card{display:flex;gap:18px;background:var(--card);border:1px solid var(--border);border-radius:16px;padding:18px;transition:border-color .25s ease,transform .25s ease}
.char-card:hover{border-color:var(--border-bright);transform:translateY(-4px)}
.char-card img{width:180px;height:180px;object-fit:cover;border-radius:14px;flex-shrink:0}
.char-card h3{margin-bottom:6px}
.char-role{display:inline-block;font-size:.74rem;padding:2px 10px;border-radius:999px;background:rgba(124,92,255,.16);color:var(--accent2);margin-bottom:8px}
.char-card p{font-size:.86rem;color:var(--muted);margin-bottom:6px}
.char-card p b{color:var(--text)}

/* platform */
.platform-wrap{display:grid;grid-template-columns:1.4fr 1fr;gap:36px;align-items:start}
.steps{display:grid;gap:14px}
.step{display:flex;gap:14px;background:var(--card);border:1px solid var(--border);border-radius:14px;padding:16px}
.step .n{width:34px;height:34px;flex-shrink:0;border-radius:10px;background:linear-gradient(120deg,var(--accent),var(--accent2));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700}
.step b{display:block;color:var(--title);margin-bottom:2px}
.step span{font-size:.85rem;color:var(--muted)}
.feature-squares{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:34px}
.square{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:16px;text-align:center;font-size:.86rem;color:var(--muted)}
.square b{display:block;color:var(--accent2);margin-bottom:6px;font-size:.95rem}

/* sync */
.sync-wrap{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center}
.device-imgs{display:flex;gap:18px;justify-content:center;flex-wrap:wrap}
.device-imgs img{width:400px;height:600px;object-fit:cover;border:1px solid var(--border);box-shadow:var(--shadow)}

/* notices */
.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:20px;transition:border-color .25s ease}
.notice-card:hover{border-color:var(--border-bright)}
.notice-card .date{font-size:.78rem;color:var(--accent2);margin-bottom:8px}
.notice-card h3{font-size:1rem;margin-bottom:8px}
.notice-card p{font-size:.85rem;color:var(--muted)}

/* guide */
.guide-wrap{display:grid;grid-template-columns:1.3fr 1fr;gap:36px;align-items:start}
.checklist{display:grid;gap:12px}
.checklist div{display:flex;gap:10px;background:var(--card);border:1px solid var(--border);border-radius:12px;padding:14px;font-size:.88rem;color:var(--muted)}
.checklist div::before{content:"✓";color:var(--accent2);font-weight:700}

/* app */
.app-section{text-align:center}
.app-section p{max-width:640px;margin:0 auto 28px;color:var(--muted)}
.app-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* comments */
.comment-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.comment-card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:18px;transition:border-color .25s ease}
.comment-card:hover{border-color:var(--border-bright)}
.comment-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.comment-head b{color:var(--title);font-size:.92rem}
.comment-head span{font-size:.78rem;color:var(--muted)}
.comment-card p{font-size:.88rem;color:var(--muted)}

/* faq */
.faq-list{max-width:900px;margin:0 auto;display:grid;gap:14px}
.faq-item{background:var(--card);border:1px solid var(--border);border-radius:14px;overflow:hidden;transition:border-color .25s ease}
.faq-item.open{border-color:var(--border-bright)}
.faq-q{width:100%;text-align:left;background:none;border:none;color:var(--title);font-size:1rem;font-weight:600;padding:18px 20px;cursor:pointer;display:flex;justify-content:space-between;gap:14px;font-family:inherit}
.faq-q .ico{color:var(--accent2);transition:transform .3s ease;flex-shrink:0}
.faq-item.open .faq-q .ico{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a p{padding:0 20px 18px;font-size:.9rem;color:var(--muted)}

/* sidebar layout */
.layout-with-side{display:grid;grid-template-columns:1fr 320px;gap:34px;align-items:start}
.sidebar{display:grid;gap:22px;position:sticky;top:100px}
.side-card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:20px}
.side-card h3{font-size:1rem;margin-bottom:14px;padding-bottom:10px;border-bottom:1px solid var(--border)}
.rank-list{list-style:none;display:grid;gap:10px}
.rank-list li{display:flex;gap:12px;align-items:center;font-size:.88rem}
.rank-list .rk{width:24px;height:24px;flex-shrink:0;border-radius:8px;background:var(--card-hover);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;font-size:.76rem;color:var(--accent2);font-weight:700}
.rank-list li:nth-child(1) .rk,.rank-list li:nth-child(2) .rk,.rank-list li:nth-child(3) .rk{background:linear-gradient(120deg,var(--accent),var(--accent2));color:#fff;border-color:transparent}
.rank-list a{color:var(--text)}
.rank-list a:hover{color:var(--link-hover)}
.stat-list{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.stat-list div{background:var(--card-hover);border:1px solid var(--border);border-radius:12px;padding:12px;text-align:center}
.stat-list b{display:block;color:var(--accent2);font-size:1.05rem}
.stat-list span{font-size:.76rem;color:var(--muted)}

/* footer */
footer.site-footer{background:rgba(11,11,24,.6);border-top:1px solid var(--border);padding:56px 0 26px;margin-top:40px}
[data-theme="light"] footer.site-footer{background:rgba(255,255,255,.7)}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;margin-bottom:36px}
.footer-col h4{font-size:.98rem;margin-bottom:14px;color:var(--title)}
.footer-col ul{list-style:none;display:grid;gap:9px}
.footer-col ul a{font-size:.86rem;color:var(--muted)}
.footer-col ul a:hover{color:var(--link-hover)}
.friend-links{display:flex;flex-wrap:wrap;gap:10px;padding:20px 0;border-top:1px solid var(--border);border-bottom:1px solid var(--border);margin-bottom:20px}
.friend-links a{font-size:.82rem;padding:5px 12px;border-radius:999px;background:var(--card);border:1px solid var(--border)}
.friend-links a:hover{text-decoration:none;border-color:var(--border-bright)}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:.82rem;color:var(--muted)}
.footer-bottom .legal{display:flex;gap:16px;flex-wrap:wrap}
.footer-bottom .legal a{color:var(--muted)}
.footer-bottom .legal a:hover{color:var(--link-hover)}

/* back to top */
#backTop{position:fixed;right:22px;bottom:26px;width:46px;height:46px;border-radius:50%;border:1px solid var(--border);background:var(--card);color:var(--accent2);font-size:1.15rem;cursor:pointer;display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transform:translateY(14px);transition:.3s ease;z-index:900;box-shadow:var(--shadow)}
#backTop.show{opacity:1;visibility:visible;transform:translateY(0)}
#backTop:hover{border-color:var(--border-bright)}

@media (max-width:1080px){
  .grid-comics{grid-template-columns:repeat(3,1fr)}
  .featured-list{grid-template-columns:1fr}
  .layout-with-side{grid-template-columns:1fr}
  .sidebar{position:static}
  .platform-wrap,.sync-wrap,.guide-wrap,.detail-wrap{grid-template-columns:1fr}
  .detail-side{position:static}
  .notice-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:900px){
  nav.main-nav,.search-box{display:none}
  .hamburger{display:flex}
  .nav-actions .btn-primary{display:none}
  .feature-card{flex-direction:column}
  .feature-card img{width:100%;height:auto;aspect-ratio:300/200}
  .char-grid{grid-template-columns:1fr}
  .comment-grid{grid-template-columns:1fr}
  .feature-squares{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:640px){
  .grid-comics{grid-template-columns:repeat(2,1fr)}
  .notice-grid{grid-template-columns:1fr}
  .hero-stats{gap:26px}
  .char-card{flex-direction:column}
  .char-card img{width:100%;height:auto;aspect-ratio:1/1}
  .device-imgs img{width:100%;height:auto;aspect-ratio:400/600}
  .footer-grid{grid-template-columns:1fr}
  section{padding:46px 0}
}