:root{
  --bg-start:#0b0b18;
  --bg-end:#15152c;
  --card:#1a1a36;
  --card-2:#20203f;
  --border:#2e2e58;
  --text:#e9e9f4;
  --title:#f2f2ff;
  --accent:#7c5cff;
  --accent-2:#9d7cff;
  --accent-soft:rgba(124,92,255,.18);
  --link:#b3a0ff;
  --shadow:0 12px 32px rgba(0,0,0,.45);
  --radius:16px;
}
html[data-theme="light"]{
  --bg-start:#f6f8ff;
  --bg-end:#eef2fb;
  --card:#ffffff;
  --card-2:#f2f5ff;
  --border:rgba(40,62,100,.13);
  --text:#142033;
  --title:#0d0820;
  --accent:#6c4df6;
  --accent-2:#1fb9d6;
  --accent-soft:rgba(108,77,246,.12);
  --link:#5a3fe0;
  --shadow:0 12px 30px rgba(30,50,90,.12);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:linear-gradient(160deg,var(--bg-start) 0%,var(--bg-end) 100%);
  background-attachment:fixed;
  color:var(--text);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:var(--link);text-decoration:none;transition:color .2s}
a:hover{color:var(--accent-2);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;font-weight:800}
h2{font-size:clamp(1.4rem,2.6vw,2rem);margin-bottom:6px}
h3{font-size:1.08rem}
.container{width:min(1240px,92vw);margin:0 auto}

/* 进度条 */
#progressBar{
  position:fixed;top:0;left:0;height:3px;width:0%;
  background:linear-gradient(90deg,var(--accent),var(--accent-2));
  z-index:2000;transition:width .1s linear;
}

/* 导航 */
header.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1500;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  background:rgba(20,20,44,.62);
  border-bottom:1px solid transparent;
  transition:background .3s,border-color .3s,box-shadow .3s;
}
html[data-theme="light"] header.site-header{background:rgba(255,255,255,.72)}
header.site-header.scrolled{
  border-bottom:1px solid var(--border);
  box-shadow:0 8px 26px rgba(0,0,0,.28);
}
.nav-inner{
  display:flex;align-items:center;gap:18px;
  height:66px;
}
.logo{
  display:flex;align-items:center;gap:10px;flex-shrink:0;
  font-weight:900;font-size:1.02rem;color:var(--title);
}
.logo:hover{text-decoration:none;color:var(--accent-2)}
.logo-mark{
  width:36px;height:36px;border-radius:10px;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  display:grid;place-items:center;color:#fff;font-size:1rem;font-weight:900;
  box-shadow:0 6px 16px var(--accent-soft);
}
.nav-links{display:flex;gap:4px;margin-left:8px;flex:1;flex-wrap:nowrap;overflow:hidden}
.nav-links a{
  color:var(--text);font-size:.9rem;padding:8px 10px;border-radius:9px;
  white-space:nowrap;
}
.nav-links a:hover{background:var(--accent-soft);color:var(--accent-2);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{
  background:transparent;border:none;outline:none;color:var(--text);
  width:130px;font-size:.86rem;font-family:inherit;
}
.search-box input::placeholder{color:#8f8fb8}
html[data-theme="light"] .search-box input::placeholder{color:#6b7a95}
.search-box button{
  background:none;border:none;color:var(--accent-2);cursor:pointer;font-size:.95rem;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  border-radius:10px;padding:9px 16px;font-size:.88rem;font-weight:700;
  cursor:pointer;border:1px solid transparent;font-family:inherit;
  transition:transform .18s,box-shadow .18s,background .18s,color .18s;
}
.btn-primary{
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  color:#fff;box-shadow:0 8px 20px var(--accent-soft);
}
.btn-primary:hover{transform:translateY(-2px);color:#fff;text-decoration:none;box-shadow:0 12px 26px var(--accent-soft)}
.btn-ghost{
  background:var(--card);border:1px solid var(--border);color:var(--text);
}
.btn-ghost:hover{transform:translateY(-2px);color:var(--accent-2);text-decoration:none;border-color:var(--accent)}
.theme-toggle{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--border);
  background:var(--card);color:var(--text);cursor:pointer;font-size:1rem;
  display:grid;place-items:center;transition:transform .2s,color .2s;
}
.theme-toggle:hover{transform:rotate(-12deg);color:var(--accent-2)}
.hamburger{
  display:none;width:40px;height:40px;border-radius:10px;
  border:1px solid var(--border);background:var(--card);cursor:pointer;
  flex-direction:column;justify-content:center;align-items:center;gap:5px;
}
.hamburger span{
  width:19px;height:2px;background:var(--text);border-radius:2px;transition:.3s;
}
.hamburger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-menu{
  display:none;flex-direction:column;gap:2px;
  padding:10px 5vw 18px;border-top:1px solid var(--border);
  background:rgba(20,20,44,.96);
}
html[data-theme="light"] .mobile-menu{background:rgba(255,255,255,.97)}
.mobile-menu.open{display:flex}
.mobile-menu a{
  color:var(--text);padding:11px 10px;border-radius:9px;font-size:.94rem;
}
.mobile-menu a:hover{background:var(--accent-soft);text-decoration:none;color:var(--accent-2)}

/* Hero */
.hero{
  min-height:76vh;display:flex;flex-direction:column;justify-content:center;
  align-items:center;text-align:center;padding:120px 5vw 60px;
  position:relative;overflow:hidden;
}
.hero::before{
  content:"";position:absolute;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,var(--accent-soft),transparent 68%);
  top:-140px;left:-120px;pointer-events:none;
}
.hero::after{
  content:"";position:absolute;width:440px;height:440px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,185,214,.14),transparent 68%);
  bottom:-160px;right:-100px;pointer-events:none;
}
.hero-logo{
  width:200px;height:200px;border-radius:42px;object-fit:cover;
  border:1px solid var(--border);box-shadow:var(--shadow);
  margin-bottom:26px;position:relative;z-index:1;
}
.hero h1{
  font-size:clamp(1.7rem,4.4vw,3rem);max-width:960px;position:relative;z-index:1;
  background:linear-gradient(100deg,var(--title),var(--accent-2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  padding:0 6px;
}
.hero .slogan{
  margin-top:16px;font-size:clamp(1rem,1.7vw,1.2rem);color:var(--accent-2);
  font-weight:700;position:relative;z-index:1;
}
.hero .intro{
  margin-top:16px;max-width:760px;font-size:.95rem;color:var(--text);
  position:relative;z-index:1;
}
.hero-cta{
  display:flex;gap:14px;flex-wrap:wrap;justify-content:center;
  margin-top:30px;position:relative;z-index:1;
}
.hero-stats{
  display:flex;gap:44px;flex-wrap:wrap;justify-content:center;
  margin-top:46px;position:relative;z-index:1;
}
.hero-stats .stat{display:flex;flex-direction:column;align-items:center}
.hero-stats .num{
  font-size:clamp(1.5rem,3vw,2.1rem);font-weight:900;
  background:linear-gradient(120deg,var(--accent),var(--accent-2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-stats .label{font-size:.82rem;color:var(--text);opacity:.85}

/* 区块 */
section.block{padding:70px 0}
.section-head{margin-bottom:30px}
.section-head .kicker{
  font-size:.78rem;letter-spacing:2px;text-transform:uppercase;
  color:var(--accent-2);font-weight:800;
}
.section-head p{font-size:.92rem;margin-top:8px;max-width:820px;opacity:.92}

/* 卡片网格 */
.grid{
  display:grid;gap:20px;
  grid-template-columns:repeat(4,1fr);
}
.card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  overflow:hidden;transition:transform .25s,box-shadow .25s,border-color .25s;
  position:relative;
}
.card:hover{transform:translateY(-7px);border-color:var(--accent);box-shadow:var(--shadow)}
.card .cover-wrap{position:relative}
.card .cover-wrap img{width:100%;height:auto;border-radius:0;aspect-ratio:220/310;object-fit:cover}
.badge{
  position:absolute;top:10px;font-size:.7rem;font-weight:800;
  padding:3px 9px;border-radius:20px;color:#fff;backdrop-filter:blur(6px);
}
.badge.status{left:10px;background:rgba(124,92,255,.92)}
.badge.status.done{background:rgba(31,185,214,.92)}
.badge.views{right:10px;background:rgba(11,11,24,.78)}
.card-body{padding:13px 14px 16px}
.card-body h3{font-size:1rem;margin-bottom:8px}
.meta{font-size:.78rem;line-height:1.85;opacity:.9}
.meta b{color:var(--accent-2);font-weight:700}
.tag-row{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.tag{
  font-size:.7rem;padding:3px 9px;border-radius:20px;
  background:var(--accent-soft);color:var(--accent-2);font-weight:700;
}

/* 精品推荐 */
.picks{display:grid;gap:20px;grid-template-columns:repeat(2,1fr)}
.pick{
  display:flex;gap:16px;background:var(--card);border:1px solid var(--border);
  border-radius:var(--radius);padding:14px;transition:transform .25s,border-color .25s,box-shadow .25s;
}
.pick:hover{transform:translateY(-5px);border-color:var(--accent);box-shadow:var(--shadow)}
.pick img{width:300px;height:200px;object-fit:cover;flex-shrink:0;border-radius:12px}
.pick .pick-text{display:flex;flex-direction:column;gap:6px}
.pick .pick-text p{font-size:.85rem}
.pick .pick-text .info{font-size:.78rem;opacity:.9}

/* 详细介绍 */
.detail-layout{display:grid;grid-template-columns:280px 1fr;gap:26px;align-items:stretch}
.detail-side{
  background:linear-gradient(160deg,var(--accent),#3b2a99);
  border-radius:var(--radius);padding:30px 24px;color:#fff;
  display:flex;flex-direction:column;justify-content:center;gap:14px;
}
html[data-theme="light"] .detail-side{background:linear-gradient(160deg,#6c4df6,#3d2bb0)}
.detail-side .big-num{
  font-size:5rem;font-weight:900;line-height:1;color:#fff;opacity:.95;
}
.detail-side p{font-size:.92rem;color:#fff;opacity:.95}
.detail-body{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:30px;
}
.detail-body h3{margin:20px 0 8px;color:var(--accent-2)}
.detail-body h3:first-child{margin-top:0}
.detail-body p{font-size:.92rem;margin-bottom:10px}
.detail-tags{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
.detail-tags span{
  background:var(--accent-soft);color:var(--accent-2);font-weight:800;
  font-size:.8rem;padding:8px 18px;border-radius:24px;
}

/* 角色 */
.char-grid{display:grid;gap:18px;grid-template-columns:repeat(2,1fr)}
.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;
}
.char-card:hover{transform:translateY(-5px);border-color:var(--accent)}
.char-card img{width:180px;height:180px;object-fit:cover;flex-shrink:0;border-radius:14px}
.char-card h3{margin-bottom:6px}
.char-card .role{
  display:inline-block;font-size:.72rem;font-weight:800;padding:2px 10px;
  border-radius:20px;background:var(--accent-soft);color:var(--accent-2);margin-bottom:8px;
}
.char-card p{font-size:.83rem;margin-bottom:4px}

/* 平台介绍 */
.platform-layout{display:grid;grid-template-columns:1.4fr 1fr;gap:28px}
.platform-text p{font-size:.92rem;margin-bottom:12px}
.steps{display:flex;flex-direction:column;gap:14px}
.step{
  display:flex;gap:14px;background:var(--card);border:1px solid var(--border);
  border-radius:14px;padding:16px;
}
.step .sn{
  width:36px;height:36px;flex-shrink:0;border-radius:10px;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  color:#fff;font-weight:900;display:grid;place-items:center;font-size:.95rem;
}
.step h3{font-size:.95rem;margin-bottom:4px}
.step p{font-size:.82rem}
.feature-squares{
  display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:30px;
}
.fsq{
  background:var(--card);border:1px solid var(--border);border-radius:14px;
  padding:16px;text-align:center;font-size:.85rem;font-weight:700;color:var(--text);
  transition:border-color .25s,transform .25s;
}
.fsq:hover{border-color:var(--accent);transform:translateY(-4px)}
.fsq span{display:block;font-size:1.3rem;margin-bottom:6px}

/* 多端同步 */
.sync-layout{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:center}
.sync-img{display:flex;gap:18px;justify-content:center;flex-wrap:wrap}
.sync-img img{border:1px solid var(--border);box-shadow:var(--shadow)}
.sync-text p{font-size:.92rem;margin-bottom:12px}
.sync-list{list-style:none;display:flex;flex-direction:column;gap:10px;margin-top:14px}
.sync-list li{
  background:var(--card);border:1px solid var(--border);border-radius:12px;
  padding:12px 16px;font-size:.86rem;
}
.sync-list li b{color:var(--accent-2)}

/* 公告 */
.notice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.notice{
  background:var(--card);border:1px solid var(--border);border-radius:14px;
  padding:18px;transition:transform .25s,border-color .25s;
}
.notice:hover{transform:translateY(-5px);border-color:var(--accent)}
.notice .date{font-size:.75rem;color:var(--accent-2);font-weight:800;letter-spacing:1px}
.notice h3{font-size:.98rem;margin:8px 0 6px}
.notice p{font-size:.83rem}

/* 安全指南 */
.guide-layout{display:grid;grid-template-columns:1.3fr 1fr;gap:28px}
.guide-layout p{font-size:.92rem;margin-bottom:12px}
.checklist{list-style:none;display:flex;flex-direction:column;gap:12px}
.checklist li{
  background:var(--card);border:1px solid var(--border);border-radius:12px;
  padding:14px 16px;font-size:.86rem;display:flex;gap:10px;align-items:flex-start;
}
.checklist li::before{
  content:"✓";color:var(--accent-2);font-weight:900;flex-shrink:0;
}

/* APP下载 */
.download{
  text-align:center;background:var(--card);border:1px solid var(--border);
  border-radius:22px;padding:52px 6vw;box-shadow:var(--shadow);
}
.download p{max-width:720px;margin:16px auto 0;font-size:.93rem}
.download-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:28px}

/* 评论 */
.comment-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.comment{
  background:var(--card);border:1px solid var(--border);border-radius:14px;
  padding:18px;transition:border-color .25s,transform .25s;
}
.comment:hover{border-color:var(--accent);transform:translateY(-4px)}
.comment .chead{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px;gap:10px}
.comment .cname{font-weight:800;color:var(--accent-2);font-size:.9rem}
.comment .ctime{font-size:.74rem;opacity:.8;white-space:nowrap}
.comment p{font-size:.86rem}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px;margin:0 auto}
.faq-item{
  background:var(--card);border:1px solid var(--border);border-radius:14px;overflow:hidden;
}
.faq-q{
  width:100%;text-align:left;background:none;border:none;color:var(--title);
  font-size:.95rem;font-weight:700;padding:17px 20px;cursor:pointer;
  display:flex;justify-content:space-between;align-items:center;gap:14px;font-family:inherit;
}
.faq-q:hover{color:var(--accent-2)}
.faq-q .arrow{transition:transform .3s;color:var(--accent-2);flex-shrink:0}
.faq-item.open .faq-q .arrow{transform:rotate(180deg)}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .35s ease;
}
.faq-a p{padding:0 20px 18px;font-size:.86rem}

/* 侧边栏布局 */
.main-with-aside{display:grid;grid-template-columns:1fr 320px;gap:30px;align-items:start}
aside.sidebar{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  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:flex;flex-direction:column;gap:11px}
.rank-list li{display:flex;gap:10px;align-items:center;font-size:.85rem}
.rank-num{
  width:24px;height:24px;flex-shrink:0;border-radius:8px;display:grid;place-items:center;
  font-size:.74rem;font-weight:900;background:var(--accent-soft);color:var(--accent-2);
}
.rank-list li:nth-child(1) .rank-num{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff}
.rank-list li:nth-child(2) .rank-num{background:linear-gradient(135deg,var(--accent-2),var(--accent));color:#fff}
.rank-list li:nth-child(3) .rank-num{background:linear-gradient(135deg,#4b3bb0,var(--accent));color:#fff}
.rank-list li a{color:var(--text)}
.rank-list li a:hover{color:var(--accent-2)}
.stat-list{list-style:none;display:flex;flex-direction:column;gap:10px}
.stat-list li{
  display:flex;justify-content:space-between;font-size:.84rem;
  padding-bottom:9px;border-bottom:1px dashed var(--border);
}
.stat-list li:last-child{border-bottom:none;padding-bottom:0}
.stat-list li b{color:var(--accent-2)}

/* 底部 */
footer.site-footer{
  background:rgba(12,12,28,.7);border-top:1px solid var(--border);
  padding:56px 0 26px;margin-top:40px;
}
html[data-theme="light"] footer.site-footer{background:rgba(240,244,255,.85)}
.footer-cols{display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
.footer-cols h3{font-size:.98rem;margin-bottom:14px;color:var(--accent-2)}
.footer-cols ul{list-style:none;display:flex;flex-direction:column;gap:9px}
.footer-cols ul li a{font-size:.85rem;color:var(--text)}
.footer-cols ul li a:hover{color:var(--accent-2)}
.footer-cols p{font-size:.84rem}
.friend-links{
  margin-top:34px;padding-top:22px;border-top:1px solid var(--border);
  display:flex;flex-wrap:wrap;gap:12px 20px;font-size:.82rem;align-items:center;
}
.friend-links b{color:var(--accent-2);font-size:.85rem}
.copyright{
  margin-top:22px;padding-top:18px;border-top:1px solid var(--border);
  font-size:.78rem;display:flex;flex-direction:column;gap:8px;
}
.copyright .legal{display:flex;flex-wrap:wrap;gap:8px 18px}
.copyright .legal a{font-size:.78rem}

/* 返回顶部 */
#backTop{
  position:fixed;right:22px;bottom:26px;width:46px;height:46px;border-radius:14px;
  border:1px solid var(--border);background:var(--card);color:var(--accent-2);
  font-size:1.1rem;cursor:pointer;display:grid;place-items:center;z-index:1600;
  opacity:0;visibility:hidden;transform:translateY(14px);
  transition:opacity .3s,transform .3s,visibility .3s,box-shadow .3s;
  box-shadow:var(--shadow);
}
#backTop.show{opacity:1;visibility:visible;transform:translateY(0)}
#backTop:hover{transform:translateY(-4px)}

/* 响应式 */
@media (max-width:1080px){
  .grid{grid-template-columns:repeat(3,1fr)}
  .main-with-aside{grid-template-columns:1fr}
  aside.sidebar{position:static;top:auto}
  .nav-links{display:none}
  .search-box{display:none}
}
@media (max-width:820px){
  .grid{grid-template-columns:repeat(2,1fr)}
  .picks{grid-template-columns:1fr}
  .pick img{width:200px;height:180px}
  .detail-layout{grid-template-columns:1fr}
  .char-grid{grid-template-columns:1fr}
  .platform-layout{grid-template-columns:1fr}
  .sync-layout{grid-template-columns:1fr}
  .notice-grid{grid-template-columns:1fr}
  .guide-layout{grid-template-columns:1fr}
  .comment-grid{grid-template-columns:1fr}
  .footer-cols{grid-template-columns:repeat(2,1fr)}
  .hamburger{display:flex}
  .feature-squares{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:560px){
  .grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .hero{padding-top:100px}
  .hero-stats{gap:26px}
  .pick{flex-direction:column}
  .pick img{width:100%;height:190px}
  .char-card{flex-direction:column;align-items:flex-start}
  .char-card img{width:100%;height:200px}
  .footer-cols{grid-template-columns:1fr}
  .feature-squares{grid-template-columns:1fr}
  .nav-right .btn-primary{display:none}
  .detail-side .big-num{font-size:3.4rem}
}