/* roulang page: index */
:root{
  --c-bg:#0B0E1A;
  --c-bg-soft:#141828;
  --c-surface:#1C2240;
  --c-surface-2:#262B4A;
  --c-primary:#2BE0C6;
  --c-primary-deep:#00A996;
  --c-primary-2:#7C5CFF;
  --c-secondary:#A0A6C8;
  --c-accent:#FF8248;
  --c-white:#FFFFFF;
  --c-text:#F2F3F8;
  --c-mut:#8E93B0;
  --grad-brand:linear-gradient(90deg,#7C5CFF 0%,#00E0C6 100%);
  --grad-cta:linear-gradient(90deg,#FF8248 0%,#FF5E8A 100%);
  --radius-s:8px;
  --radius-m:14px;
  --radius-l:18px;
  --radius-xl:24px;
  --radius-2xl:32px;
  --radius-pill:999px;
  --shadow-1:0 8px 30px rgba(0,0,0,.25);
  --shadow-2:0 24px 60px rgba(0,0,0,.35);
  --border:1px solid rgba(255,255,255,.08);
  --font-main:system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
}

/* base reset */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-main);
  background:var(--c-bg);
  color:var(--c-text);
  line-height:1.75;
  font-size:16px;
  padding-bottom:82px;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:#73F0DC}
button{font-family:inherit}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
.container{max-width:1200px}

/* Typography */
h1,h2,h3,h4{line-height:1.3;font-weight:700;color:var(--c-text)}
.section-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--c-primary);font-size:13px;font-weight:600;letter-spacing:.04em;
  margin-bottom:12px;
}
.section-eyebrow::before{content:"";width:18px;height:2px;background:var(--grad-brand);border-radius:2px}
.sec-head h2{font-size:clamp(26px,3vw,34px);font-weight:700;margin-bottom:10px}
.sec-head .sec-desc{color:var(--c-mut);max-width:720px;font-size:15px;margin-bottom:0}

/* Buttons */
.btn{
  --bs-btn-padding-y:.55rem;
  --bs-btn-padding-x:1.25rem;
  border-radius:var(--radius-pill);
  font-weight:600;
  border:none;
  transition:transform .25s ease, box-shadow .25s ease, background-color .25s ease, color .25s ease;
}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn-cta{
  background:var(--grad-cta);
  color:#fff!important;
  box-shadow:0 10px 26px rgba(255,94,138,.25);
}
.btn-cta:hover{box-shadow:0 16px 36px rgba(255,94,138,.38);filter:brightness(1.06);color:#fff}
.btn-ghost{
  background:rgba(255,255,255,.04);
  color:#fff!important;
  border:1px solid rgba(43,224,198,.55);
}
.btn-ghost:hover{background:var(--c-primary);color:#000!important;border-color:var(--c-primary)}
.btn-outline-light{
  background:transparent;color:#fff;border:1px solid rgba(255,255,255,.3);
}
.btn-outline-light:hover{background:#fff;color:#000;border-color:#fff}
.btn-sm{padding:.42rem 1rem;font-size:14px}
.btn .bi{margin-left:4px}

/* Header */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(11,14,26,.88);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(124,92,255,.15);
  transition:background .3s ease, box-shadow .3s ease;
}
.site-header.scrolled{
  background:rgba(13,16,36,.94);
  box-shadow:0 8px 30px rgba(0,0,0,.3);
  border-bottom-color:rgba(43,224,198,.35);
}
.topbar{
  background:rgba(11,14,26,.4);
  border-bottom:1px solid rgba(255,255,255,.04);
  font-size:13px;
  color:var(--c-secondary);
}
.topbar .container{gap:8px}
.topbar a{color:var(--c-secondary);font-size:13px;margin-left:4px}
.topbar a:hover{color:var(--c-primary)}
.topbar .topbar-status i{color:var(--c-primary);font-size:8px;margin-right:5px;vertical-align:middle}
.topbar-links a{margin-left:16px}
.mainbar{
  padding-top:4px;padding-bottom:4px;
}
.navbar-brand{
  padding:6px 0;margin-right:32px;
}
.site-logo{
  display:inline-flex;align-items:center;gap:8px;
}
.logo-badge{
  width:38px;height:38px;border-radius:12px;
  background:var(--grad-brand);
  display:inline-flex;align-items:center;justify-content:center;
  color:#fff;font-size:20px;
  position:relative;
}
.logo-badge::after{
  content:"";width:8px;height:8px;border-radius:50%;
  background:var(--c-accent);
  position:absolute;top:-2px;right:-2px;
}
.logo-text{
  font-size:23px;font-weight:800;letter-spacing:.02em;
  color:#fff;font-family:var(--font-main);
  line-height:1.2;
}
.logo-text .name-free{color:#fff}
.logo-text .name-qb{
  background:var(--grad-brand);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}
.mainbar .nav-link{
  position:relative;
  color:var(--c-text);
  font-size:15.5px;
  font-weight:500;
  padding:.7rem 1rem!important;
  border-radius:var(--radius-pill);
}
.mainbar .nav-link:hover{color:var(--c-primary)}
.mainbar .nav-link.active{color:var(--c-primary)}
.mainbar .nav-link.active::after{
  content:"";
  position:absolute;left:16px;right:16px;bottom:3px;
  height:2px;border-radius:2px;background:var(--grad-brand);
}
.header-search{
  width:220px;position:relative;margin:0 14px;
}
.header-search .form-control{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius-pill);
  color:#fff;
  padding-left:40px;
  padding-top:.46rem;padding-bottom:.46rem;
  font-size:14px;
  transition:border-color .2s ease, background .2s ease;
}
.header-search .form-control:focus{
  background:rgba(255,255,255,.1);
  border-color:var(--c-primary);
  box-shadow:none;
}
.header-search .search-icon{
  position:absolute;left:14px;top:50%;transform:translateY(-50%);
  color:var(--c-secondary);font-size:15px;z-index:5;pointer-events:none;
}
.navbar-toggler{
  border:1px solid rgba(255,255,255,.15);
  color:rgba(255,255,255,.8);
  border-radius:12px;padding:.3rem .55rem;
}
.navbar-toggler:focus{box-shadow:0 0 0 3px rgba(43,224,198,.35)}
.navbar-toggler i{font-size:1.4rem;color:#fff}
.trend-bar{
  background:rgba(7,9,20,.3);
  border-top:1px solid rgba(255,255,255,.04);
  padding:6px 0;
  white-space:nowrap;
  overflow-x:auto;
  scrollbar-width:none;
}
.trend-bar::-webkit-scrollbar{display:none}
.trend-bar .container{display:flex;align-items:center;gap:6px}
.trend-bar a{
  color:var(--c-mut);font-size:13px;
  border-radius:var(--radius-pill);
  padding:2px 11px;
  transition:color .2s, background .2s;
}
.trend-bar a:hover{color:var(--c-accent);background:rgba(255,130,72,.1)}
.trend-bar strong{font-size:12px;color:var(--c-secondary);font-weight:600;margin-right:4px}

/* Hero */
.hero-section{
  position:relative;
  padding:88px 0 64px;
  background:radial-gradient(ellipse at 78% 22%, rgba(124,92,255,.28), transparent 52%),
             radial-gradient(ellipse at 6% 90%, rgba(0,224,198,.12), transparent 50%),
             #0B0E1A;
  overflow:hidden;
}
.hero-bg{
  position:absolute;inset:0;opacity:.28;
  background-image:url('/assets/images/backpic/back-1.jpg');
  background-size:cover;background-position:center 20%;
}
.hero-section .container{position:relative;z-index:2}
.hero-tag{
  display:inline-flex;align-items:center;gap:7px;
  background:rgba(43,224,198,.12);
  color:var(--c-primary);
  border:1px solid rgba(43,224,198,.26);
  padding:6px 14px;
  border-radius:var(--radius-pill);
  font-size:14px;font-weight:600;
  margin-bottom:22px;
}
.hero-tag i{font-size:14px}
.hero-title{
  font-size:clamp(31px,4.2vw,52px);
  font-weight:800;
  line-height:1.22;
  color:#fff;
  margin:0 0 20px;
  letter-spacing:-.01em;
}
.hero-title .grad-txt{
  background:var(--grad-brand);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}
.hero-sub{
  color:#C7CBE2;
  font-size:17px;
  max-width:560px;
  margin:0 0 30px;
  line-height:1.8;
}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:18px}
.hero-trust{display:flex;gap:16px;flex-wrap:wrap;color:var(--c-mut);font-size:13px}
.hero-trust i{color:var(--c-primary);margin-right:4px}

/* Hot rank card */
.hot-rank-card{
  background:linear-gradient(145deg, rgba(28,34,64,.94), rgba(20,24,42,.94));
  border:1px solid rgba(124,92,255,.25);
  border-radius:var(--radius-2xl);
  padding:26px 26px 20px;
  position:relative;
  box-shadow:var(--shadow-2);
  overflow:hidden;
}
.hot-rank-card::before{
  content:"";position:absolute;top:0;left:22px;right:22px;height:3px;
  background:var(--grad-brand);border-radius:0 0 4px 4px;
}
.rank-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}
.rank-head h3{font-size:18px;color:#fff;margin:0}
.rank-head span{font-size:12px;color:var(--c-secondary);background:rgba(255,255,255,.06);padding:3px 10px;border-radius:999px}
.rank-list{list-style:none;padding:0;margin:0}
.rank-list li{border-radius:var(--radius-m);padding:9px 8px;position:relative;transition:background .2s;}
.rank-list li:hover{background:rgba(43,224,198,.06)}
.rank-list li:hover a{color:var(--c-primary);transform:translateX(3px)}
.rank-list a{
  display:flex;align-items:center;gap:12px;
  color:var(--c-text);font-size:14.5px;transition:transform .2s,color .2s;
}
.rank-no{
  font-family:'Inter',system-ui,sans-serif;
  font-weight:700;font-size:13px;
  width:26px;height:26px;flex:0 0 26px;
  border-radius:8px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.07);
  color:var(--c-mut);
}
.rank-list li:nth-child(-n+2) .rank-no{background:var(--grad-brand);color:#fff;}
.rank-list li .rank-tag{font-size:11px;padding:2px 8px;border-radius:999px;background:rgba(255,130,72,.14);color:var(--c-accent);margin-left:auto}
.rank-more{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;color:var(--c-primary);margin-top:12px;
}
.rank-more:hover{color:#fff}

/* stat band */
.stat-band{
  padding:28px 0 68px;
  background:transparent;
}
.stat-band .stat-wrap{display:flex;gap:16px;flex-wrap:wrap}
.stat-item{
  background:rgba(255,255,255,.03);
  border:var(--border);
  border-radius:var(--radius-xl);
  padding:18px 28px;
  display:flex;flex-direction:column;align-items:flex-start;gap:2px;
  flex:1 1 180px;
  transition:border-color .2s;
}
.stat-item:hover{border-color:rgba(43,224,198,.4)}
.stat-item strong{
  font-size:30px;font-weight:800;
  background:var(--grad-brand);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
  color:transparent;line-height:1.2;
}
.stat-item span{color:var(--c-mut);font-size:13px}
.stat-item .bi{color:var(--c-mut);font-size:13px;display:block}

/* portal chip bar */
.portal-chip{
  padding:0;
  margin-top:-24px;
  margin-bottom:34px;
}
.chip-list{
  display:flex;flex-wrap:wrap;gap:10px;
  background:rgba(255,255,255,.03);
  border:1px solid rgba(255,255,255,.07);
  border-radius:var(--radius-2xl);
  padding:20px 22px;
}
.chip-list .chip-label{font-size:13px;color:var(--c-secondary);margin-right:4px;font-weight:600}
.chip{
  display:inline-flex;align-items:center;gap:5px;
  color:var(--c-text);font-size:13px;
  border:1px solid rgba(255,255,255,.1);
  background:rgba(255,255,255,.03);
  padding:5px 14px;
  border-radius:var(--radius-pill);
  transition:all .2s;
}
.chip:hover{color:var(--c-primary);border-color:rgba(43,224,198,.5);background:rgba(43,224,198,.06);transform:translateY(-2px)}
.chip .bi{font-size:12px}

/* sections */
.section{padding:74px 0}
.section-dark{background:transparent}
.sec-head{margin-bottom:36px}
.sec-head-left{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;flex-wrap:wrap;margin-bottom:32px}
.sec-link{font-size:14px;color:var(--c-mut);display:inline-flex;align-items:center;gap:5px}
.sec-link:hover{color:var(--c-primary)}
.sec-link i{transition:transform .2s}
.sec-link:hover i{transform:translateX(4px)}

/* features */
.feature-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:22px;
}
.feature-card{
  background:linear-gradient(160deg, rgba(28,34,64,.75), rgba(20,24,42,.75));
  border:var(--border);
  border-radius:var(--radius-2xl);
  padding:30px 26px;
  position:relative;
  overflow:hidden;
  transition:transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.feature-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;
  background:var(--grad-brand);
  opacity:.5;
  transition:opacity .3s;
}
.feature-card:hover::before{opacity:1}
.feature-card:hover{
  transform:translateY(-6px);
  box-shadow:0 0 0 1px rgba(43,224,198,.35),0 20px 50px rgba(0,0,0,.35);
  border-color:rgba(43,224,198,.2);
}
.feature-card.lg{grid-column:span 2;grid-row:span 2}
.feature-card.lg .feature-icon{width:54px;height:54px;font-size:26px}
.feature-card .feature-icon{
  width:48px;height:48px;border-radius:14px;
  background:rgba(124,92,255,.14);
  color:#AFA2FF;
  display:flex;align-items:center;justify-content:center;
  font-size:22px;margin-bottom:20px;
}
.feature-card h3{font-size:20px;color:#fff;margin:0 0 12px}
.feature-card p{color:var(--c-mut);font-size:14.5px;margin:0}
.feat-with-img::after{content:"";position:absolute;right:-16px;bottom:-16px;width:150px;height:150px;background:url('/assets/images/coverpic/cover-3.webp') center/cover;border-radius:24px;border:1px solid rgba(255,255,255,.14)}
.feat-img-card{background:#E9F0F9;color:#111!important}
.feat-img-card h3,.feat-img-card p{color:#111}
.feat-img-card::before{background:var(--grad-cta)}

/* scenes */
.scene-section{background:linear-gradient(180deg, rgba(11,14,26,0) 0%, rgba(20,16,42,.45) 100%)}
.scene-card{
  background:rgba(22,19,48,.88);
  border:1px solid rgba(124,92,255,.22);
  border-radius:var(--radius-2xl);
  padding:30px 26px;
}
.scene-panel{display:flex;gap:30px;flex-direction:column}
@media(min-width:992px){.scene-panel{flex-direction:row;align-items:center}}
.scene-visual{
  flex:0 0 46%;
  border-radius:20px;overflow:hidden;
  position:relative;
}
.scene-visual img{height:100%;min-height:260px;width:100%;object-fit:cover}
.scene-visual::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg, rgba(124,92,255,.2), transparent)}
.scene-list{flex:1;display:flex;flex-direction:column;gap:6px}
.scene-item{
  display:flex;gap:16px;align-items:flex-start;
  border-radius:var(--radius-l);
  padding:16px 16px 16px 12px;
  transition:background .25s,border-color .25s;
}
.scene-item:hover{background:rgba(255,255,255,.03)}
.scene-num{
  font-size:13px;font-weight:700;font-family:'Inter',sans-serif;
  color:var(--c-primary);
  background:rgba(43,224,198,.08);
  border:1px solid rgba(43,224,198,.2);
  width:44px;height:44px;border-radius:12px;
  flex:0 0 44px;
  display:flex;align-items:center;justify-content:center;
}
.scene-label{font-size:12px;color:var(--c-accent);border:1px solid rgba(255,130,72,.3);padding:1px 8px;border-radius:999px;display:inline-block;margin-bottom:3px}
.scene-item h4{font-size:18px;color:#fff;margin:0 0 4px}
.scene-item p{color:var(--c-mut);font-size:14px;margin:0}

/* News area */
.news-area{background:transparent}
.news-feature{
  display:flex;flex-direction:column;
  background:rgba(28,34,64,.72);
  border:var(--border);
  border-radius:var(--radius-2xl);
  overflow:hidden;
  margin-bottom:20px;
  transition:box-shadow .3s;
}
.news-feature:hover{box-shadow:var(--shadow-1)}
.news-feature .nf-img{flex:0 0 auto}
.news-feature .nf-body{padding:24px}
.news-feature img{width:100%;height:220px;object-fit:cover}
@media(min-width:768px){
  .news-feature{flex-direction:row}
  .news-feature .nf-img{flex:0 0 46%}
  .news-feature img{height:100%;min-height:230px}
}
.news-feature .nf-tag{
  background:var(--grad-cta);
  color:#fff;font-size:12px;
  border-radius:999px;
  padding:3px 12px;
  display:inline-block;
  margin-bottom:12px;
}
.news-feature h3{font-size:22px;color:#fff;margin-bottom:10px;line-height:1.4}
.news-feature p{color:var(--c-mut);font-size:14.5px;margin-bottom:16px}
.meta-info{display:flex;align-items:center;gap:16px;color:var(--c-mut);font-size:13px}
.news-simple-list{list-style:none;padding:0;margin:0}
.news-simple-list li{
  background:rgba(255,255,255,.025);
  border:var(--border);
  border-radius:var(--radius-l);
  padding:18px 20px;
  margin-bottom:12px;
  transition:transform .2s, border-color .2s, background .2s;
}
.news-simple-list li:hover{transform:translateX(4px);border-color:rgba(43,224,198,.3);background:rgba(43,224,198,.03)}
.news-simple-list h4{
  font-size:17px;color:#fff;margin:0 0 6px;
}
.news-simple-list h4 a{color:#fff}
.news-simple-list li:hover h4 a{color:var(--c-primary)}
.news-simple-list p{color:var(--c-mut);font-size:13.5px;margin:0 0 10px}
.side-panel .card-item{
  background:rgba(255,255,255,.03);
  border:var(--border);
  border-radius:var(--radius-l);
  padding:22px;
  margin-bottom:20px;
}
.side-panel .side-title{
  font-size:17px;color:#fff;display:flex;align-items:center;gap:8px;margin-bottom:14px;
}
.side-panel .side-title i{color:var(--c-accent);font-size:18px}
.side-rec{list-style:none;padding:0;margin:0}
.side-rec li{padding:7px 0;border-bottom:1px dashed rgba(255,255,255,.07);font-size:14px}
.side-rec li:last-child{border:none}
.side-rec a{color:#D6DAEE;transition:color .2s;display:flex;gap:7px}
.side-rec li:hover a{color:var(--c-primary)}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.tag-cloud a{
  color:var(--c-secondary);font-size:13px;
  border:1px solid rgba(255,255,255,.12);
  padding:4px 12px;
  border-radius:999px;
  transition:color .2s, border-color .2s, background .2s;
}
.tag-cloud a:hover{color:var(--c-accent);border-color:rgba(255,130,72,.5);background:rgba(255,130,72,.06)}
.more-btn-wrap{text-align:center;margin-top:20px}
.btn-load{
  background:transparent;color:#fff;border:1px solid rgba(124,92,255,.5);
  border-radius:999px;padding:.6rem 2rem;
  font-size:15px;font-weight:500;
  transition:all .25s;
}
.btn-load:hover{background:rgba(124,92,255,.14);border-color:var(--c-accent);color:#fff;transform:translateY(-2px)}
.side-rank-list{list-style:none;margin:0;padding:0}
.side-rank-list li{display:flex;gap:10px;align-items:center;padding:7px 0;font-size:14px;border:none}
.side-rank-list .rank-badge{
  width:24px;height:24px;border-radius:8px;
  background:rgba(255,255,255,.07);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;color:var(--c-mut);font-family:'Inter',sans-serif;font-weight:700;
}
.side-rank-list li:nth-child(n+3) .rank-badge{background:rgba(255,130,72,.12);color:var(--c-accent)}
.side-rank-list li:nth-child(-n+2) .rank-badge{background:var(--grad-brand);color:#fff}
.side-rank-list a{color:#D6DAEE;line-height:1.4;flex:1}
.side-rank-list li:hover a{color:var(--c-primary)}

/* Social proof */
.social-proof{
  background:#F3F5FA;
  color:#1A2038;
  border-radius:44px 44px 0 0;
  padding:76px 0 74px;
  margin-top:28px;
}
.social-proof .sec-head h2,.social-proof h3{color:#151A2E}
.social-proof .sec-desc{color:#566079}
.social-proof .sec-eyebrow{color:var(--c-primary-deep)}
.section-eyebrow{color:var(--c-primary)}
.quote-wall{
  display:grid;
  grid-template-columns:1.15fr 1fr .82fr;
  gap:20px;
  align-items:stretch;
  margin-top:14px;
}
.quote-card{
  background:#fff;
  border-radius:var(--radius-xl);
  padding:28px;
  box-shadow:0 10px 30px rgba(20,24,42,.07);
  border:1px solid rgba(20,24,42,.05);
  display:flex;flex-direction:column;
}
.quote-card .star-row{color:#FFB62C;font-size:15px;margin-bottom:14px;letter-spacing:2px}
.quote-card blockquote{color:#333A55;font-size:15px;margin:0 0 16px;flex:1;line-height:1.8}
.quote-card figcaption{color:#8891A8;font-size:13px;display:flex;align-items:center;gap:9px}
.quote-card figcaption::before{content:"";width:30px;height:1px;background:var(--c-accent);display:inline-block}
.quote-card .quote-score{
  font-size:12px;color:#fff;background:var(--grad-cta);
  width:max-content;padding:2px 10px;border-radius:999px;margin-bottom:14px;
}
@media(max-width:991px){.quote-wall{grid-template-columns:1fr 1fr}.quote-card:last-child{grid-column:1/-1}}
@media(max-width:575px){.quote-wall{grid-template-columns:1fr}}

/* FAQ */
.faq-section{padding:80px 0 30px}
.faq-wrap{max-width:840px;margin:0 auto}
.accordion-custom .accordion-item{
  background:rgba(28,34,64,.72);
  border:var(--border);
  border-radius:var(--radius-l)!important;
  margin-bottom:14px;
  overflow:hidden;
}
.accordion-custom .accordion-item:hover{border-color:rgba(43,224,198,.26)}
.accordion-custom .accordion-button{
  background:transparent;
  color:var(--c-text);
  font-size:17px;
  font-weight:600;
  padding:18px 22px;
  border-radius:var(--radius-l)!important;
  box-shadow:none!important;
}
.accordion-custom .accordion-button .q-badge{
  background:rgba(124,92,255,.15);
  border:1px solid rgba(124,92,255,.28);
  color:#AFA2FF;
  width:26px;height:26px;border-radius:8px;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;
  margin-right:10px;
  flex:0 0 auto;
}
.accordion-custom .accordion-button:not(.collapsed){
  color:#fff;
}
.accordion-custom .accordion-button:not(.collapsed) .q-badge{
  background:var(--c-primary);
  color:#031614;
}
.accordion-custom .accordion-button::after{
  content:"";
  background:none;
  border-right:2px solid var(--c-mut);
  border-bottom:2px solid var(--c-mut);
  width:8px;height:8px;
  transform:rotate(45deg);
  transition:transform .3s;
}
.accordion-custom .accordion-button:not(.collapsed)::after{
  transform:rotate(225deg);
  border-color:var(--c-primary);
}
.accordion-custom .accordion-body{
  color:var(--c-secondary);
  font-size:15px;
  line-height:1.85;
  padding:4px 22px 22px 66px;
  border-top:1px solid rgba(255,255,255,.04);
}
.accordion-custom .accordion-body .a-badge{
  color:var(--c-primary);margin-right:8px;font-weight:700;
}
.faq-bottom-link{display:flex;justify-content:center;margin-top:26px}
.faq-bottom-link a{font-size:14px;color:var(--c-mut)}
.faq-bottom-link a:hover{color:var(--c-primary)}
.faq-note{font-size:13px;color:var(--c-mut);text-align:center;margin-top:18px}

/* Final CTA */
.final-cta{
  padding:58px 0 70px;
}
.cta-box{
  position:relative;
  background:linear-gradient(140deg,#1C2240 0%,#262B4A 55%,#4A2C6E 100%);
  border-radius:var(--radius-2xl);
  padding:56px 60px;
  overflow:hidden;
  box-shadow:var(--shadow-2);
}
.cta-box::before{
  content:"";position:absolute;right:-80px;top:-80px;width:300px;height:300px;
  background:radial-gradient(circle,rgba(124,92,255,.35),transparent 65%);
}
.cta-box::after{
  content:"";position:absolute;left:16px;bottom:-70px;width:200px;height:200px;
  background:radial-gradient(circle,rgba(43,224,198,.18),transparent 65%);
}
.cta-box h2{font-size:clamp(25px,3vw,33px);color:#fff;margin-bottom:12px;position:relative;z-index:1}
.cta-box p{color:#D0D3EA;font-size:16px;max-width:640px;position:relative;z-index:1}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;position:relative;z-index:1}
.cta-box .btn-cta{background:var(--grad-cta)}
.cta-box .btn-ghost{border-color:rgba(255,255,255,.25)}

/* Footer */
.site-footer{
  background:var(--c-bg-soft);
  border-top:1px solid rgba(255,255,255,.05);
  padding:64px 0 30px;
  color:var(--c-mut);
  font-size:14px;
}
.footer-main{display:grid;grid-template-columns:1.3fr 1fr 1.2fr 1.4fr;gap:30px;margin-bottom:38px}
.footer-brand .site-logo{margin-bottom:12px}
.footer-brand-note{margin-top:12px;font-size:13.5px;line-height:1.8;color:var(--c-mut)}
.footer-brand-note .tagline{display:block;margin-bottom:10px}
.footer-title{font-size:16px;color:#fff;margin-bottom:16px;position:relative;padding-bottom:8px}
.footer-title::after{content:"";position:absolute;left:0;bottom:0;width:24px;height:2px;background:var(--grad-brand)}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer a{color:var(--c-mut);line-height:2.2;transition:color .2s}
.site-footer a:hover{color:var(--c-primary)}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px}
.footer-tags a{color:var(--c-secondary);border:1px solid rgba(255,255,255,.1);border-radius:999px;padding:2px 12px;font-size:12px}
.footer-tags a:hover{color:var(--c-accent);border-color:rgba(255,130,72,.5)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.04);
  padding-top:24px;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:#7B82AD;
}
.footer-bottom a{font-size:13px;color:#7B82AD}
.footer-bottom a:hover{color:var(--c-primary)}

/* floating bar */
.floating-bar{
  position:fixed;
  left:16px;right:16px;bottom:14px;
  z-index:1080;
  background:rgba(20,24,42,.92);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border:1px solid rgba(124,92,255,.4);
  border-radius:var(--radius-pill);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:10px 14px 10px 26px;
  max-width:1120px;
  margin:0 auto;
  box-shadow:var(--shadow-2);
  transition:transform .3s ease, border-color .3s ease;
}
.floating-bar:hover{border-color:rgba(43,224,198,.45)}
.floating-bar .fb-text{color:#EDF0FA;font-size:14px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.floating-bar .fb-text small{display:block;font-size:12px;color:var(--c-mut);font-weight:400}
.floating-bar .btn{padding:.5rem 1.2rem;font-size:14px;flex:0 0 auto}
@media(max-width:575px){
  .floating-bar{left:10px;right:10px;padding-left:18px}
  .floating-bar .fb-text{max-width:58%;font-size:13px}
}

/* Back to top */
.back-top{
  position:fixed;
  right:20px;bottom:88px;
  z-index:1090;
  width:48px;height:48px;
  border-radius:16px;
  background:rgba(28,34,64,.9);
  border:1px solid rgba(43,224,198,.3);
  color:var(--c-primary);
  font-size:20px;
  display:flex;align-items:center;justify-content:center;
  opacity:0;
  pointer-events:none;
  transition:opacity .3s,transform .3s,background .3s;
  transform:translateY(10px);
}
.back-top.show{opacity:1;pointer-events:auto;transform:translateY(0)}
.back-top:hover{background:var(--c-primary);color:#031614;box-shadow:0 0 0 5px rgba(43,224,198,.12)}

/* Media Queries */
@media(max-width:991px){
  .header-search{width:100%;margin:12px 0 4px}
  .mainbar .nav-link{padding-left:.4rem!important}
  .navbar-collapse{
    background:#12162B;
    border-radius:0 0 18px 18px;
    padding:8px 14px 16px;
    margin-top:8px;
    border:1px solid rgba(255,255,255,.07);
  }
  .sidebar-progress{display:none}
  .feature-grid{grid-template-columns:1fr 1fr}
  .feature-card.lg{grid-column:span 2;grid-row:auto}
  .scene-visual img{min-height:220px}
  .footer-main{grid-template-columns:1fr 1fr;gap:26px}
  .footer-bottom{font-size:12px}
}
@media(max-width:767px){
  .section{padding:54px 0}
  .hero-section{padding:56px 0 48px}
  .hero-actions .btn{padding:.55rem 1rem;font-size:14px}
  .hot-rank-card{margin-top:20px}
  .stat-band{padding:24px 0 44px}
  .stat-item strong{font-size:24px}
}
@media(max-width:575px){
  .section{padding:44px 0}
  .hero-section{padding:46px 0 40px}
  .hero-title{font-size:31px}
  .hero-sub{font-size:15px}
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%}
  .trend-bar .container{align-items:flex-start;padding-left:12px}
  .feature-grid{grid-template-columns:1fr}
  .feature-card.lg{grid-column:auto}
  .news-feature .nf-body{padding:18px}
  .news-feature h3{font-size:18px}
  .stat-wrapper{gap:10px}
  .stat-item{padding:14px 16px}
  .footer-main{grid-template-columns:1fr}
  .cta-box{padding:36px 24px}
  .sidebar{display:none}
  .news-feature img{height:180px}
  .accordion-custom .accordion-button{font-size:15.5px}
  .accordion-custom .accordion-body{padding-left:22px}
}

/* roulang page: category1 */
/* ===== 设计系统 ===== */
:root{
 --c-bg:#0B0E1A;
 --c-bg-soft:#141828;
 --c-surface:#1C2240;
 --c-surface-2:#262B4A;
 --c-primary:#2BE0C6;
 --c-primary-deep:#00A996;
 --c-primary-2:#7C5CFF;
 --c-secondary:#A0A6C8;
 --c-accent:#FF8248;
 --c-white:#FFFFFF;
 --c-text:#F2F3F8;
 --c-mut:#8E93B0;
 --grad-brand:linear-gradient(90deg,#7C5CFF 0%,#00E0C6 100%);
 --grad-cta:linear-gradient(90deg,#FF8248 0%,#FF5E8A 100%);
 --radius-s:8px;
 --radius-m:14px;
 --radius-l:18px;
 --radius-xl:24px;
 --radius-2xl:32px;
 --radius-pill:999px;
 --shadow-1:0 8px 30px rgba(0,0,0,.25);
 --shadow-2:0 24px 60px rgba(0,0,0,.35);
 --border:1px solid rgba(255,255,255,.08);
 --font-main:system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
}
html{scroll-behavior:smooth}
body{
 font-family:var(--font-main);
 background:var(--c-bg);
 color:var(--c-text);
 line-height:1.75;font-size:16px;
 padding-bottom:88px;
 -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:#73F0DC}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
.container{max-width:1200px}
.section-eyebrow{
 display:inline-flex;align-items:center;gap:8px;
 color:var(--c-primary);font-size:13px;font-weight:600;letter-spacing:.04em;
 margin-bottom:12px;
}
.section-eyebrow::before{content:"";width:18px;height:2px;background:var(--grad-brand);border-radius:2px}

/* Buttons */
.btn{
 --bs-btn-padding-y:.55rem;--bs-btn-padding-x:1.25rem;
 border-radius:var(--radius-pill);font-weight:600;border:none;
 transition:transform .25s ease,box-shadow .25s ease,background-color .25s ease,color .25s ease;
}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn-cta{background:var(--grad-cta);color:#fff!important;box-shadow:0 10px 26px rgba(255,94,138,.25)}
.btn-cta:hover{box-shadow:0 16px 36px rgba(255,94,138,.38);filter:brightness(1.06);color:#fff}
.btn-ghost{background:rgba(255,255,255,.04);color:#fff!important;border:1px solid rgba(43,224,198,.55)}
.btn-ghost:hover{background:var(--c-primary);color:#000!important;border-color:var(--c-primary)}
.btn-outline-light{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.3)}
.btn-outline-light:hover{background:#fff;color:#000;border-color:#fff}
.btn-sm{padding:.42rem 1rem;font-size:14px}
.btn .bi{margin-left:4px}

/* Header */
.site-header{
 position:sticky;top:0;z-index:1040;
 background:rgba(11,14,26,.88);
 backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
 border-bottom:1px solid rgba(124,92,255,.15);
 transition:background .3s ease,box-shadow .3s ease;
}
.site-header.scrolled{
 background:rgba(13,16,36,.94);
 box-shadow:0 8px 30px rgba(0,0,0,.3);
 border-bottom-color:rgba(43,224,198,.35);
}
.topbar{
 background:rgba(11,14,26,.4);
 border-bottom:1px solid rgba(255,255,255,.04);
 font-size:13px;color:var(--c-secondary);
}
.topbar .container{display:flex;align-items:center;justify-content:space-between;min-height:34px}
.topbar-right a{color:var(--c-secondary);font-size:13px;margin-left:16px}
.topbar-right a:hover{color:var(--c-primary)}
.topbar-status i{color:var(--c-primary);font-size:8px;margin-right:5px;vertical-align:middle;font-style:normal}
.mainbar{padding-top:4px;padding-bottom:4px}
.navbar-brand{padding:6px 0;margin-right:32px}
.site-logo{display:inline-flex;align-items:center;gap:8px}
.logo-badge{
 width:38px;height:38px;border-radius:12px;background:var(--grad-brand);
 display:inline-flex;align-items:center;justify-content:center;
 color:#fff;font-size:20px;position:relative;
}
.logo-badge::after{content:"";width:8px;height:8px;border-radius:50%;background:var(--c-accent);position:absolute;top:-2px;right:-2px}
.logo-text{font-size:23px;font-weight:800;letter-spacing:.02em;color:#fff;line-height:1.2}
.logo-text .name-free{color:#fff}
.logo-text .name-qb{
 background:var(--grad-brand);
 -webkit-background-clip:text;background-clip:text;
 -webkit-text-fill-color:transparent;color:transparent;
}
.mainbar .navbar-collapse{flex-wrap:wrap}
.mainbar .nav-link{
 position:relative;color:var(--c-text);font-size:15.5px;font-weight:500;
 padding:.7rem 1rem!important;border-radius:var(--radius-pill);
}
.mainbar .nav-link:hover{color:var(--c-primary)}
.mainbar .nav-link.active{color:var(--c-primary)}
.mainbar .nav-link.active::after{
 content:"";position:absolute;left:16px;right:16px;bottom:3px;
 height:2px;border-radius:2px;background:var(--grad-brand);
}
.header-search{
 width:220px;position:relative;margin:0 14px;
}
.header-search .form-control{
 background:rgba(255,255,255,.06);
 border:1px solid rgba(255,255,255,.12);
 border-radius:var(--radius-pill);color:#fff;
 padding-left:40px;padding-top:.46rem;padding-bottom:.46rem;
 font-size:14px;
 transition:border-color .2s ease,background .2s ease;
}
.header-search .form-control:focus{
 background:rgba(255,255,255,.1);border-color:var(--c-primary);box-shadow:none;
}
.header-search .search-icon{
 position:absolute;left:14px;top:50%;transform:translateY(-50%);
 color:var(--c-secondary);font-size:15px;z-index:5;pointer-events:none;
}
.navbar-toggler{border:1px solid rgba(255,255,255,.15);border-radius:12px;padding:.3rem .55rem}
.navbar-toggler:focus{box-shadow:0 0 0 3px rgba(43,224,198,.35)}
.navbar-toggler i{font-size:1.4rem;color:#fff}
.trend-bar{background:rgba(20,24,40,.5);border-bottom:1px solid rgba(255,255,255,.04)}
.trend-bar .container{display:flex;align-items:center;gap:6px;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;padding:6px 12px}
.trend-bar .container::-webkit-scrollbar{display:none}
.trend-bar a{color:var(--c-mut);font-size:13px;border-radius:var(--radius-pill);padding:2px 11px;white-space:nowrap;transition:color .2s,background .2s}
.trend-bar a:hover{color:var(--c-accent);background:rgba(255,130,72,.1)}

/* ===== 分类页眉 ===== */
.category-hero{
 position:relative;
 padding:52px 0 44px;
 background:radial-gradient(ellipse at 84% 18%,rgba(124,92,255,.24),transparent 50%),
 radial-gradient(ellipse at 8% 86%,rgba(0,224,198,.13),transparent 48%),var(--c-bg);
 overflow:hidden;
}
.category-hero-bg{position:absolute;inset:0;opacity:.16;background-size:cover;background-position:center;z-index:0}
.category-hero .container{position:relative;z-index:2}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-mut);margin-bottom:18px;flex-wrap:wrap}
.crumb a{color:var(--c-mut);transition:color .2s}
.crumb a:hover{color:var(--c-primary)}
.crumb i{font-size:12px}
.crumb strong{color:var(--c-primary);font-weight:600}
.cat-hero-row{align-items:center}
.cat-title-tag{
 display:inline-flex;align-items:center;gap:6px;
 background:rgba(43,224,198,.12);border:1px solid rgba(43,224,198,.35);
 color:var(--c-primary);font-size:12.5px;font-weight:600;
 border-radius:var(--radius-pill);padding:3px 13px;margin-bottom:14px;
}
.category-hero h1{
 font-size:clamp(28px,4vw,44px);font-weight:800;line-height:1.25;
 margin-bottom:14px;letter-spacing:.01em;
}
.category-hero h1 .grad{
 background:var(--grad-brand);
 -webkit-background-clip:text;background-clip:text;
 -webkit-text-fill-color:transparent;color:transparent;
}
.cat-hero-desc{
 color:var(--c-secondary);font-size:15.5px;
 max-width:660px;margin-bottom:6px;
}
.hero-stat-line{display:flex;gap:18px;flex-wrap:wrap;margin-top:18px}
.hero-stat-line .stat-mini{display:flex;align-items:center;gap:8px;color:var(--c-mut);font-size:13px}
.hero-stat-line .stat-mini i{color:var(--c-primary);font-size:16px}
.hero-stat-line .stat-mini strong{color:var(--c-text);font-size:16px;font-weight:700}
.success-bar{
 margin-top:12px;font-size:13px;color:var(--c-mut);
 display:flex;align-items:center;gap:6px;flex-wrap:wrap;
}
.success-bar i{color:var(--c-primary)}
.cat-hero-panel{
 background:rgba(28,34,64,.7);backdrop-filter:blur(14px);
 border:1px solid rgba(255,255,255,.1);
 border-radius:var(--radius-xl);
 padding:24px;box-shadow:var(--shadow-1);
}
.cat-hero-panel .panel-top{
 display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;
}
.cat-hero-panel .panel-top strong{font-size:16px}
.panel-search{position:relative;margin-bottom:14px}
.panel-search .form-control{
 background:rgba(11,14,26,.6);border:1px solid rgba(255,255,255,.12);
 border-radius:var(--radius-m);color:#fff;padding-left:42px;padding-top:.6rem;padding-bottom:.6rem;font-size:14.5px;
}
.panel-search .form-control:focus{border-color:var(--c-primary);box-shadow:none;background:rgba(11,14,26,.8)}
.panel-search i{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--c-mut);z-index:5}
.panel-hot-title{font-size:13px;color:var(--c-mut);margin-bottom:8px;display:flex;align-items:center;gap:6px}
.panel-hot-title i{color:var(--c-accent)}
.panel-tags{display:flex;flex-wrap:wrap;gap:6px}
.panel-tags a{
 font-size:13px;color:var(--c-secondary);
 border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-pill);
 padding:2px 12px;transition:all .2s;
}
.panel-tags a:hover{color:#000;background:var(--c-primary);border-color:var(--c-primary)}

/* ===== 快捷通道 ===== */
.quick-channel{padding:34px 0 10px}
.quick-channel .row{gap:14px 0}
.channel-pill{
 display:flex;align-items:center;gap:12px;
 background:var(--c-surface);border:var(--border);border-radius:var(--radius-l);
 padding:14px 18px;color:var(--c-text);
 transition:transform .25s,border-color .25s,box-shadow .25s;
 height:100%;
}
.channel-pill:hover{
 transform:translateY(-4px);
 border-color:rgba(43,224,198,.5);
 box-shadow:0 14px 30px rgba(0,0,0,.28);
 color:#fff;
}
.channel-ico{
 width:42px;height:42px;min-width:42px;border-radius:14px;
 background:rgba(43,224,198,.12);color:var(--c-primary);
 display:inline-flex;align-items:center;justify-content:center;font-size:20px;
}
.channel-pill:nth-child(even) .channel-ico{
 background:rgba(255,130,72,.12);color:var(--c-accent);
}
.channel-name{font-weight:650;font-size:15px;line-height:1.3}
.channel-name small{display:block;font-size:12px;color:var(--c-mut);font-weight:400;margin-top:2px}
.channel-count{
 margin-left:auto;
 background:rgba(255,255,255,.06);
 border-radius:var(--radius-pill);padding:2px 11px;
 font-size:12.5px;color:var(--c-secondary);font-weight:600;
}

/* ===== 主内容两栏 ===== */
.main-layout{padding:40px 0 28px}
.toolbar-head{
 display:flex;align-items:flex-end;justify-content:space-between;
 gap:16px;margin-bottom:22px;flex-wrap:wrap;
}
.toolbar-left h2{
 font-size:clamp(22px,2.4vw,30px);font-weight:750;margin:0;
 display:flex;align-items:center;gap:12px;
}
.toolbar-left h2 .bi{color:var(--c-primary)}
.toolbar-sub{color:var(--c-mut);font-size:14px;margin-top:4px}
.toolbar-tabs{display:flex;gap:6px;flex-wrap:wrap}
.tb-tab{
 font-size:13.5px;color:var(--c-secondary);border:1px solid rgba(255,255,255,.12);
 border-radius:var(--radius-pill);padding:4px 15px;transition:all .2s;
}
.tb-tab.active,.tb-tab:hover{color:#000;background:var(--c-primary);border-color:var.tb-tab.active,.tb-tab:hover{color:#000;background:var(--c-primary);border-color:var(--c-primary)}
/* 内容卡片 */
.article-column{display:flex;flex-direction:column;gap:22px}
.feature-card{
 display:flex;gap:20px;flex-wrap:wrap;
 background:linear-gradient(135deg,rgba(124,92,255,.14),rgba(43,224,198,.06)),var(--c-surface);
 border:1px solid rgba(255,255,255,.09);
 border-radius:26px;padding:22px;
 transition:transform .3s,box-shadow .3s,border-color .3s;
 position:relative;overflow:hidden;
}
.feature-card::before{
 content:"";position:absolute;left:0;top:20px;bottom:20px;width:3px;
 background:var(--grad-brand);border-radius:0 6px 6px 0;
}
.feature-card:hover{
 transform:translateY(-5px);
 box-shadow:var(--shadow-2);
 border-color:rgba(43,224,198,.45);
}
.feat-thumb{width:280px;min-height:180px;border-radius:20px;overflow:hidden;flex-shrink:0;background:rgba(255,255,255,.04)}
.feat-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.feature-card:hover .feat-thumb img{transform:scale(1.05)}
.feat-info{flex:1;min-width:250px}
.feature-badge{
 display:inline-flex;align-items:center;gap:6px;
 background:linear-gradient(90deg,#7C5CFF,#00E0C6);
 color:#fff;font-size:12.5px;font-weight:600;
 padding:3px 12px;border-radius:999px;margin-bottom:12px;
}
.feature-badge i{font-size:9px}
.feat-title{font-size:clamp(20px,2vw,26px);font-weight:750;line-height:1.35;margin-bottom:10px}
.feat-title a{color:var(--c-text);transition:color .2s}
.feat-title a:hover{color:var(--c-primary)}
.feat-summary{
 color:var(--c-secondary);font-size:14.5px;line-height:1.8;margin-bottom:14px;
}
.feat-meta{display:flex;flex-wrap:wrap;gap:14px;align-items:center;font-size:12.5px;color:var(--c-mut);border-top:1px dashed rgba(255,255,255,.1);padding-top:12px}
.feat-meta .meta-tag{
 background:rgba(43,224,198,.13);color:var(--c-primary);padding:1px 10px;border-radius:6px;
}
.feat-meta .meta-link{margin-left:auto;color:var(--c-accent);font-weight:600}
.feat-meta .meta-link i{transition:transform .2s}
.feature-card:hover .meta-link i{transform:translateX(4px)}
.article-item{
 display:flex;gap:18px;align-items:center;
 background:var(--c-surface);
 border:1px solid rgba(255,255,255,.07);
 border-radius:22px;padding:16px 18px;
 transition:transform .25s,border-color .25s,box-shadow .25s;
}
.article-item:hover{transform:translateX(5px);border-color:rgba(43,224,198,.4);box-shadow:var(--shadow-1)}
.article-thumb{
 width:120px;min-width:120px;height:86px;border-radius:14px;overflow:hidden;
}
.article-thumb img{width:100%;height:100%;object-fit:cover}
.article-info{flex:1;min-width:0}
.article-info h3{font-size:17.5px;font-weight:650;margin:0 0 6px;line-height:1.5}
.article-info h3 a{color:var(--c-text)}
.article-info h3 a:hover{color:var(--c-primary)}
.article-summary{
 color:var(--c-mut);font-size:13px;line-height:1.6;margin:0 0 8px;
 display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.article-meta{display:flex;align-items:center;gap:14px;font-size:12px;color:var(--c-mut)}
.article-meta .tag{background:rgba(255,130,72,.12);color:var(--c-accent);padding:1px 8px;border-radius:6px}
.article-meta i{color:var(--c-mut)}
.article-arrow{margin-left:8px;color:var(--c-primary);opacity:0;transform:translateX(-4px);transition:all .3s;font-size:18px}
.article-item:hover .article-arrow{opacity:1;transform:translateX(0)}

/* 分页 */
.pagination-wrap{display:flex;justify-content:center;margin-top:38px}
.pager{
 display:flex;gap:8px;align-items:center;
 background:var(--c-surface);border:1px solid rgba(255,255,255,.1);
 border-radius:999px;padding:7px 12px;color:var(--c-secondary);
 font-size:14px;transition:all .2s;
}
.pager i{color:var(--c-primary)}
.pager strong{color:var(--c-primary);margin:0 3px}
.pager:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-2px)}

/* 侧边栏 */
.sidebar-sticky{position:sticky;top:86px;display:flex;flex-direction:column;gap:24px}
.sidecard{
 background:var(--c-surface);border:1px solid rgba(255,255,255,.08);
 border-radius:24px;padding:20px;overflow:hidden;
}
.sidecard-light{
 background:#F5F7FB;border:1px solid #E6E9F2;
}
.sidecard-head{
 display:flex;align-items:center;gap:8px;margin-bottom:16px;
 font-size:16px;font-weight:700;color:var(--c-text);
}
.sidecard-light .sidecard-head{color:#0D1024}
.sidecard-head .ic{
 width:30px;height:30px;min-width:30px;border-radius:9px;
 background:rgba(43,224,198,.14);color:var(--c-primary);
 display:inline-flex;align-items:center;justify-content:center;font-size:16px;
}
.sidecard-head .has-grad{
 background:linear-gradient(135deg,#7C5CFF,#00E0C6);color:#fff;
}
.sidecard-head span:last-child{margin-left:auto;font-size:12px;color:var(--c-mut);font-weight:500}
.rank-list{display:flex;flex-direction:column}
.rank-item{
 display:flex;align-items:center;gap:12px;padding:11px 6px;
 border-radius:12px;
 transition:all .2s;
}
.rank-item:hover{background:rgba(255,255,255,.05)}
.rank-item + .rank-item{border-top:1px solid rgba(255,255,255,.05)}
.rank-index{
 width:26px;min-width:26px;height:26px;border-radius:9px;
 background:rgba(124,92,255,.16);color:var(--c-primary-2);
 display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:13px;
}
.rank-item:nth-child(1) .rank-index{background:linear-gradient(135deg,#FF8248,#FF5E8A);color:#fff}
.rank-item:nth-child(2) .rank-index{background:linear-gradient(135deg,#FFB13D,#FF8248);color:#fff}
.rank-item:nth-child(3) .rank-index{background:linear-gradient(135deg,#00E0C6,#00A996);color:#fff}
.rank-name{flex:1;margin:0;font-size:14px;font-weight:600;color:var(--c-text);line-height:1.4}
.rank-name a{color:inherit}
.rank-name a:hover{color:var(--c-primary)}
.rank-num{font-size:12px;color:var(--c-mut);display:flex;align-items:center;gap:5px}
.rank-num i{color:var(--c-accent)}
.rank-num.up i{color:var(--c-primary)}
/* 标签 */
.cloud-tags{display:flex;flex-wrap:wrap;gap:8px}
.cloud-tags a{
 font-size:13px;color:var(--c-secondary);
 background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.09);
 border-radius:8px;padding:4px 12px;transition:all .2s;
}
.cloud-tags a:hover{
 color:var(--c-primary);border-color:rgba(43,224,198,.5);
 background:rgba(43,224,198,.08);
}
.side-cta-card{
 background:linear-gradient(135deg,#FF8248 0%,#FF5E8A 55%,#9B5CFF 100%);
 border-radius:26px;padding:26px 22px;color:#fff;position:relative;overflow:hidden;
}
.side-cta-card::after{
 content:"";position:absolute;width:140px;height:140px;border-radius:50%;
 background:rgba(255,255,255,.15);right:-35px;top:-35px;
}
.side-cta-card .cta-small{font-size:12px;background:rgba(255,255,255,.2);display:inline-flex;padding:2px 10px;border-radius:999px;margin-bottom:12px}
.side-cta-card h3{font-size:20px;font-weight:750;line-height:1.4;position:relative;z-index:1}
.side-cta-card p{font-size:13.5px;opacity:.9;line-height:1.7;margin:10px 0 16px;position:relative;z-index:1}
.side-cta-card .btn-white{
 background:#fff;color:#FF5E8A!important;border-radius:999px;
 font-weight:700;padding:.5rem 1rem;font-size:14px;
 box-shadow:0 6px 16px rgba(0,0,0,.12);
}
.side-cta-card .btn-white:hover{transform:translateY(-2px)}
/* 相关分类 */
.related-block{margin-top:56px}
.block-title{
 display:flex;align-items:center;gap:10px;
 font-size:clamp(20px,2vw,28px);font-weight:750;color:var(--c-text);
 margin-bottom:26px;
}
.block-title .bi{color:var(--c-accent);font-size:22px}
.block-desc{color:var(--c-mut);font-size:14px;margin-top:4px}
.rel-cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.rel-icon{
 width:42px;height:42px;border-radius:13px;
 background:rgba(43,224,198,.14);color:var(--c-primary);
 display:flex;align-items:center;justify-content:center;font-size:20px;
}
.rel-item{
 display:flex;align-items:center;gap:14px;
 background:var(--c-surface);border:1px solid rgba(255,255,255,.08);
 border-radius:20px;padding:18px;transition:all .25s;
}
.rel-item:hover{border-color:var(--c-primary);transform:translateY(-3px);box-shadow:var(--shadow-1)}
.rel-item .ln{color:var(--c-mut);font-size:11px;letter-spacing:.04em}
.rel-item h3{margin:2px 0 0;font-size:15px;font-weight:650;line-height:1.4}
.rel-item h3 a{color:var(--c-text)}
.rel-item h3 a:hover{color:var(--c-primary)}
.rel-item p{margin:0;color:var(--c-mut);font-size:12px;line-height:1.5}
.rel-info{flex:1;min-width:0}

/* FAQ */
.faq-block{
 padding:60px 0;
 background:url('/assets/images/backpic/back-2.jpg') center/cover;
 position:relative;
}
/* 已有深色背景则浅色节奏省略此前 */
.faq-block{padding:66px 0;background:radial-gradient(ellipse at 30% 40%,rgba(124,92,255,.16),transparent 55%),var(--c-bg);border-radius:44px}
.faq-head{text-align:center;margin-bottom:44px}
.faq-head h2{font-size:clamp(24px,3vw,34px);font-weight:750}
.faq-head p{color:var(--c-mut);font-size:15px}
.acc-item{
 background:var(--c-surface);
 border:1px solid rgba(255,255,255,.08);
 border-radius:18px;margin-bottom:14px;
 overflow:hidden;
 transition:border-color .25s,box-shadow .25s;
}
.acc-item:hover{border-color:rgba(43,224,198,.3)}
.acc-head{
 width:100%;display:flex;align-items:center;gap:12px;
 background:transparent;border:none;text-align:left;
 color:var(--c-text);font-size:16.5px;font-weight:600;
 padding:17px 20px;
}
.acc-head .q-mark{
 width:28px;min-width:28px;height:28px;border-radius:50%;
 background:rgba(43,224,198,.14);color:var(--c-primary);
 display:inline-flex;align-items:center;justify-content:center;
 font-weight:700;font-size:13px;
}
.acc-head .acc-arrow{
 margin-left:auto;color:var(--c-mut);font-size:18px;
 transition:transform .25s;display:inline-flex;
}
.acc-item.show .acc-arrow{transform:rotate(180deg);color:var(--c-primary)}
.acc-body-inner{
 padding:0 20px 10px 60px;color:var(--c-secondary);
 font-size:15px;
}
.acc-body-inner p{margin:0 0 6px}
.acc-body{line-height:1.8}
.faq-bottom{text-align:center;margin-top:20px}
.faq-bottom a{color:var(--c-mut);font-size:14px}
.faq-bottom a i{color:var(--c-primary)}

/* CTA横条 */
.final-cta{
 padding:0 0 64px;
}
.cta-band{
 position:relative;
 border-radius:36px;overflow:hidden;
 background:
  radial-gradient(ellipse at 76% 30%,rgba(255,130,72,.22),transparent 40%),
  radial-gradient(ellipse at 15% 85%,rgba(124,92,255,.3),transparent 48%),
  linear-gradient(120deg,#151A35,#0D1024);
 padding:58px 48px;
 border:1px solid rgba(255,255,255,.1);
}
.cta-band::after{
 content:"";position:absolute;right:-40px;bottom:-60px;width:280px;height:280px;
 background:url('/assets/images/backpic/back-4.jpg') center/cover;
 opacity:.08;border-radius:50%;
}
.cta-content{position:relative;z-index:2}
.cta-content .eyebrow{color:var(--c-primary);font-size:13px;font-weight:600;display:inline-flex;align-items:center;gap:8px;margin-bottom:12px}
.cta-content h2{font-size:clamp(24px,3vw,36px);font-weight:780;color:#fff;line-height:1.3;margin:0 0 14px}
.cta-content h2 .grad-text{
 background:var(--grad-cta);
 -webkit-background-clip:text;background-clip:text;
 -webkit-text-fill-color:transparent;color:transparent;
}
.cta-content p{color:var(--c-secondary);font-size:15px;max-width:650px}
.cta-actions{margin-top:24px}

/* 页脚 */
.site-footer{
 background:#0B0E1A;
 border-top:1px solid rgba(124,92,255,.2);
 padding-top:54px;
 position:relative;z-index:2;
}
.footer-main{
 display:grid;
 grid-template-columns:2fr 1.2fr 1.2fr 1.6fr;
 gap:32px;
 padding-bottom:42px;
}
.site-footer .site-logo{margin-bottom:8px}
.site-footer .site-logo .logo-text{font-size:20px}
.footer-brand-note{display:flex;flex-direction:column;gap:4px;margin-top:12px;font-size:14px;color:var(--c-mut)}
.footer-brand-note .tagline{color:var(--c-secondary)}
.footer-title{
 color:var(--c-text);font-size:15px;font-weight:650;
 margin-bottom:16px;position:relative;padding-bottom:8px;
}
.footer-title::after{content:"";display:block;width:22px;height:2px;background:var(--grad-brand);position:absolute;left:0;bottom:0;border-radius:2px}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer ul li{margin-bottom:9px}
.site-footer ul a{color:var(--c-mut);font-size:14px;transition:all .2s;display:inline-block}
.site-footer ul a:hover{color:var(--c-primary)}
.footer-tags{display:flex;flex-wrap:wrap;gap:7px}
.footer-tags a{
 color:var(--c-secondary);font-size:13px;
 background:rgba(255,255,255,.05);
 border:1px solid rgba(255,255,255,.08);
 border-radius:999px;padding:2px 11px;
}
.footer-tags a:hover{color:var(--c-accent);border-color:rgba(255,130,72,.4);background:rgba(255,130,72,.08)}
.footer-bottom{
 border-top:1px solid rgba(255,255,255,.08);
 padding:20px 0;font-size:13px;color:#7B82AD;
 display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
}
/* 底部悬浮 */
.bottom-toolbar{
 position:fixed;left:0;right:0;bottom:0;z-index:1100;
 max-width:560px;margin:0 auto;width:calc(100% - 24px);bottom:12px;
 background:rgba(13,16,36,.92);backdrop-filter:blur(14px);
 border:1px solid rgba(43,224,198,.3);
 border-radius:999px;
 padding:9px 11px 9px 20px;
 display:flex;align-items:center;gap:14px;
 box-shadow:0 10px 32px rgba(0,0,0,.45);
 transition:transform .3s;
}
.bottom-toolbar .bt-text{font-size:14px;color:var(--c-text);font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.bottom-toolbar .bt-text small{display:block;font-size:11px;color:var(--c-mut);font-weight:400}
.bottom-toolbar .btn-cta{margin-left:auto;white-space:nowrap}
.bottom-toolbar .arr{width:28px;height:28px;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;background:rgba(255,255,255,.08);color:var(--c-primary);cursor:pointer}
.bottom-toolbar .arr:hover{background:var(--c-primary);color:#000}
#goslin{
 position:fixed;right:22px;bottom:78px;z-index:1050;
 width:40px;height:40px;border-radius:14px;
 background:var(--c-surface);
 border:1px solid rgba(43,224,198,.4);color:var(--c-primary);
 display:flex;align-items:center;justify-content:center;font-size:1.1rem;
 opacity:0;pointer-events:none;transition:all .3s;
}
#goslin.show{opacity:1;pointer-events:auto}
#goslin:hover{background:var(--c-primary);color:#000}

/* Responsive */
@media (max-width:991.98px){
 .topbar-links{display:none}
 .mainbar .navbar-collapse{
  background:rgba(13,16,36,.98);
  border-radius:20px;padding:16px;
  margin-top:10px;box-shadow:var(--shadow-2);
 }
 .mainbar .nav-link{padding:.6rem .75rem!important}
 .header-search{width:100%;margin:10px 0 0}
 .header-search .form-control{width:100%}
 .navbar-nav{width:100%}
 .btn-cta.ms-lg-2{margin-top:10px;width:100%;justify-content:center}
 .footer-main{grid-template-columns:1fr 1fr;gap:28px}
 .footer-brand{grid-column:1 / -1}
 .rel-cat-grid{grid-template-columns:repeat(2,1fr)}
 .feature-card .feat-thumb{width:100%}
 .article-thumb{width:96px;min-width:96px;height:72px}
 .bottom-toolbar .bt-text small{display:none}
}
@media (max-width:767.98px){
 .topbar{display:none}
 .category-hero{padding:44px 0 34px}
 .category-hero h1{font-size:28px}
 .quick-channel{margin-top:18px}
 .main-layout{padding:28px 0}
 .rel-cat-grid{grid-template-columns:1fr 1fr;gap:12px}
 .rel-item{flex-direction:column;align-items:flex-start}
 .sidecard-light{background:var(--c-surface)}
 .link-2col{display:none;}
 .bottom-toolbar .btn-cta{padding:.5rem .7rem}
 .bottom-toolbar .btn-cta .long-text{display:none}
 .cta-band{padding:36px 24px}
 .footer-main{grid-template-columns:1fr;gap:24px}
 .footer-bottom{flex-direction:column}
 .article-meta .hide-xs{display:none}
}
@media (max-width:575.98px){
 body{padding-bottom:74px}
 .rel-cat-grid{grid-template-columns:1fr 1fr}
 .article-thumb{display:none}
 .feature-card{padding:18px}
 .feat-thumb{height:170px;min-height:170px}
 .category-hero h1{font-size:25px}
 .cat-hero-panel{padding:18px}
 .cta-actions .btn{width:100%;margin-bottom:10px}
}

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}