/* roulang page: index */
:root{
  --bg-0:#0E0B14;
  --bg-1:#16121F;
  --surface:#1D1829;
  --surface-2:#262033;
  --line:rgba(255,255,255,.08);
  --primary:#C6FF4A;
  --primary-hover:#A6E82C;
  --accent:#7B5BFF;
  --accent-2:#FF5C8A;
  --text-1:#F3F1FA;
  --text-2:#B4AEC7;
  --text-3:#7C7590;
  --paper:#F6F4FF;
  --ink:#1B1726;
  --ink-2:#5A5470;
  --r-s:6px;
  --r-m:12px;
  --r:16px;
  --r-l:20px;
  --sh-1:0 6px 18px rgba(0,0,0,.35);
  --sh-2:0 18px 40px rgba(0,0,0,.5);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text-1);
  background:var(--bg-0);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .18s ease,border-color .18s ease,background .18s ease;}
button,input{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}

/* ---------- layout ---------- */
.grid-container{max-width:1240px;padding-left:16px;padding-right:16px;margin:0 auto;}
@media screen and (min-width:640px){.grid-container{padding-left:24px;padding-right:24px;}}
.grid-margin-x{margin-left:-10px;margin-right:-10px;}
.grid-margin-x > .cell{padding-left:10px;padding-right:10px;}
.grid-x{align-items:stretch;}

.section{padding:48px 0;}
@media screen and (min-width:1024px){.section{padding:88px 0;}}
.section-tight{padding:40px 0;}
@media screen and (min-width:1024px){.section-tight{padding:64px 0;}}

.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:28px;}
.h2{position:relative;padding-left:16px;font-size:26px;line-height:1.35;font-weight:700;letter-spacing:-.01em;color:var(--text-1);}
@media screen and (min-width:640px){.h2{font-size:28px;}}
.h2::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:4px;height:24px;border-radius:2px;background:var(--primary);}
.section-sub{margin-top:8px;font-size:14px;color:var(--text-2);line-height:1.7;max-width:640px;}
.link-more{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--primary);letter-spacing:.02em;}
.link-more:hover{color:var(--primary-hover);}
.link-more i{font-size:12px;transition:transform .2s ease;}
.link-more:hover i{transform:translateX(4px);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;min-height:44px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease,filter .2s ease;
}
.btn-primary{background:var(--primary);color:#131016;box-shadow:0 6px 18px rgba(198,255,74,.18);}
.btn-primary:hover{background:var(--primary-hover);filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 14px 30px rgba(198,255,74,.28);}
.btn-primary:active{transform:translateY(0) scale(.98);box-shadow:var(--sh-1);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text-1);}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);background:rgba(198,255,74,.07);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0) scale(.98);}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 14px 30px rgba(123,91,255,.3);}
.btn-accent:active{transform:translateY(0) scale(.98);}
.btn-sm{padding:9px 18px;min-height:38px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(14,11,20,.82);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:border-color .22s ease,background .22s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line);background:rgba(14,11,20,.95);}
.brand-inner{display:flex;align-items:center;gap:14px;height:68px;flex-wrap:nowrap;}
@media screen and (min-width:640px){.brand-inner{height:76px;gap:24px;}}

.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;min-width:0;}
.brand-dot{width:10px;height:10px;border-radius:3px;background:var(--primary);box-shadow:0 0 14px rgba(198,255,74,.65);flex:0 0 auto;}
.brand-text{display:block;min-width:0;}
.brand-text strong{display:block;font-size:15px;font-weight:800;letter-spacing:-.01em;line-height:1.25;color:var(--text-1);white-space:nowrap;}
.brand-text em{display:none;font-style:normal;font-size:11px;letter-spacing:.12em;color:var(--text-3);white-space:nowrap;}
@media screen and (min-width:640px){
  .brand-text strong{font-size:17px;}
  .brand-text em{display:block;}
}

.search-box{
  display:none;flex:1 1 auto;max-width:400px;align-items:center;gap:10px;
  height:42px;padding:0 16px;border-radius:999px;
  background:var(--surface);border:1px solid var(--line);
  transition:border-color .2s ease,background .2s ease;
}
.search-box:hover{border-color:rgba(198,255,74,.3);}
.search-box:focus-within{border-color:var(--primary);background:var(--surface-2);}
.search-box i{color:var(--text-3);font-size:13px;}
.search-box input{flex:1;background:transparent;border:0;outline:none;color:var(--text-1);font-size:14px;}
.search-box input::placeholder{color:var(--text-3);}
@media screen and (min-width:1024px){.search-box{display:flex;margin-left:auto;}}

.brand-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex:0 0 auto;}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:999px;border:1px solid var(--line);
  background:transparent;color:var(--text-2);cursor:pointer;
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.icon-btn:hover{border-color:var(--primary);color:var(--primary);background:rgba(198,255,74,.07);}
@media screen and (min-width:1024px){.nav-toggle{display:none;}}
.brand-actions .btn-primary{display:none;}
@media screen and (min-width:900px){.brand-actions .btn-primary{display:inline-flex;}}

.channel-row{border-top:1px solid var(--line);background:rgba(22,18,31,.6);}
.channel-inner{display:flex;align-items:center;gap:14px;height:52px;}
.channel-nav{display:flex;align-items:center;gap:8px;overflow-x:auto;scrollbar-width:none;flex:1 1 auto;}
.channel-nav::-webkit-scrollbar{display:none;}
.channel{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:6px;
  padding:7px 16px;border-radius:999px;border:1px solid var(--line);
  font-size:14px;font-weight:500;color:var(--text-2);white-space:nowrap;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.channel:hover{background:rgba(198,255,74,.12);border-color:rgba(198,255,74,.35);color:var(--text-1);}
.channel.is-active{background:var(--primary);border-color:var(--primary);color:#131016;font-weight:700;}
.hot-tags{display:none;align-items:center;gap:8px;flex:0 0 auto;}
@media screen and (min-width:1200px){.hot-tags{display:flex;}}
.hot-tag{
  font-size:12px;font-weight:500;letter-spacing:.02em;color:var(--accent);
  padding:4px 10px;border-radius:var(--r-s);background:rgba(123,91,255,.12);
  border:1px solid rgba(123,91,255,.24);
}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:44px 0 56px;background:linear-gradient(180deg,#0E0B14 0%,#16121F 70%,#0E0B14 100%);}
@media screen and (min-width:1024px){.hero{padding:72px 0 96px;}}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:radial-gradient(circle at 28% 18%,#000 0%,transparent 70%);
  mask-image:radial-gradient(circle at 28% 18%,#000 0%,transparent 70%);
}
.hero-glow{
  position:absolute;width:560px;height:560px;right:-160px;top:-180px;
  background:radial-gradient(circle,rgba(123,91,255,.34),transparent 62%);
  filter:blur(40px);pointer-events:none;
}
.hero-grid{position:relative;z-index:2;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:20px;
  padding:6px 14px;border-radius:999px;border:1px solid rgba(198,255,74,.32);
  background:rgba(198,255,74,.08);color:var(--primary);
  font-size:13px;font-weight:600;letter-spacing:.04em;
}
.hero-title{font-size:clamp(28px,5vw,44px);line-height:1.2;font-weight:800;letter-spacing:-.02em;color:var(--text-1);margin-bottom:16px;}
.hero-sub{font-size:16px;line-height:1.8;color:var(--text-2);max-width:540px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:28px;margin-top:36px;padding-top:24px;border-top:1px solid var(--line);}
.stat strong{display:block;font-size:24px;font-weight:800;line-height:1.2;color:var(--primary);font-variant-numeric:tabular-nums;letter-spacing:-.01em;}
.stat span{font-size:13px;color:var(--text-3);letter-spacing:.02em;}

.portrait-card{
  position:relative;width:100%;max-width:320px;margin:0 auto;aspect-ratio:9/16;
  border-radius:var(--r-l);overflow:hidden;border:1px solid var(--line);
  background:var(--surface);box-shadow:var(--sh-2);
  transition:border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.portrait-card:hover{border-color:var(--primary);transform:translateY(-4px);}
.portrait-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.portrait-card:hover img{transform:scale(1.04);}
.portrait-fade{position:absolute;inset:auto 0 0 0;height:46%;background:linear-gradient(180deg,transparent,rgba(14,11,20,.92));}
.portrait-note{position:absolute;left:18px;right:18px;bottom:18px;font-size:12px;line-height:1.6;color:var(--text-2);letter-spacing:.02em;}
.duration{
  position:absolute;top:14px;right:14px;z-index:3;
  padding:4px 10px;border-radius:var(--r-s);background:rgba(14,11,20,.78);
  font-size:12px;font-weight:600;color:var(--text-1);font-variant-numeric:tabular-nums;letter-spacing:.02em;
}
.play-btn{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);z-index:3;
  width:62px;height:62px;border-radius:999px;border:1px solid rgba(198,255,74,.55);
  background:rgba(198,255,74,.16);color:var(--primary);
  display:flex;align-items:center;justify-content:center;cursor:pointer;
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.play-btn:hover{background:var(--primary);color:#131016;transform:translate(-50%,-50%) scale(1.08);box-shadow:0 12px 30px rgba(198,255,74,.35);}
.play-btn:active{transform:translate(-50%,-50%) scale(.96);}

@media screen and (max-width:1023px){
  .hero-grid{display:flex;flex-direction:column;}
  .hero-visual-cell{order:1;margin-bottom:32px;}
  .hero-copy{order:2;}
  .portrait-card{max-width:270px;}
}

/* ---------- reel track ---------- */
.reel-track{
  display:flex;gap:16px;overflow-x:auto;padding:4px 4px 16px;
  scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;scrollbar-width:none;
}
.reel-track::-webkit-scrollbar{display:none;}
.reel-card{flex:0 0 66%;scroll-snap-align:start;min-width:0;}
@media screen and (min-width:640px){.reel-card{flex:0 0 calc((100% - 32px) / 2.4);}}
@media screen and (min-width:1024px){.reel-card{flex:0 0 calc((100% - 72px) / 4.5);}}

.reel-media{
  position:relative;aspect-ratio:9/16;border-radius:var(--r-l);overflow:hidden;
  border:1px solid var(--line);background:var(--surface);box-shadow:var(--sh-1);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.reel-card:hover .reel-media{border-color:var(--primary);box-shadow:var(--sh-2);}
.reel-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.reel-card:hover .reel-media img{transform:scale(1.04);}
.reel-fade{position:absolute;inset:auto 0 0 0;height:40%;background:linear-gradient(180deg,transparent,rgba(14,11,20,.88));}
.badge{
  position:absolute;top:12px;left:12px;z-index:3;
  padding:4px 10px;border-radius:var(--r-s);background:rgba(123,91,255,.85);
  font-size:12px;font-weight:600;color:#fff;letter-spacing:.02em;
}
.reel-play{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);z-index:3;
  width:48px;height:48px;border-radius:999px;display:flex;align-items:center;justify-content:center;
  background:rgba(14,11,20,.62);border:1px solid rgba(255,255,255,.24);color:var(--text-1);
  opacity:0;transition:opacity .2s ease,background .2s ease,color .2s ease;
}
.reel-card:hover .reel-play,.reel-card:focus-within .reel-play{opacity:1;background:var(--primary);color:#131016;border-color:var(--primary);}
.reel-title{margin-top:12px;font-size:15px;font-weight:600;line-height:1.45;color:var(--text-1);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.reel-heat{display:flex;align-items:center;gap:8px;margin-top:8px;}
.heat-bar{flex:1;height:4px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden;}
.heat-bar span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--accent),var(--primary));}
.heat-num{font-size:12px;font-weight:600;color:var(--text-3);font-variant-numeric:tabular-nums;letter-spacing:.02em;}

/* ---------- steps ---------- */
.step-grid{display:grid;grid-template-columns:1fr;gap:16px;}
@media screen and (min-width:640px){.step-grid{grid-template-columns:repeat(2,1fr);}}
@media screen and (min-width:1024px){.step-grid{grid-template-columns:repeat(3,1fr);gap:24px;}}
.step-card{
  position:relative;padding:28px 24px 24px;border-radius:var(--r);
  background:var(--surface);border:1px solid var(--line);overflow:hidden;
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.step-card::after{content:"";position:absolute;right:-30px;top:-30px;width:110px;height:110px;border-radius:50%;background:rgba(123,91,255,.14);}
.step-card:hover{border-color:var(--primary);transform:translateY(-4px);box-shadow:var(--sh-2);}
.step-num{
  position:relative;z-index:2;display:block;font-size:38px;font-weight:800;line-height:1;
  color:transparent;-webkit-text-stroke:1.5px var(--primary);letter-spacing:-.02em;margin-bottom:16px;
  font-variant-numeric:tabular-nums;
}
.step-card h3{position:relative;z-index:2;font-size:18px;font-weight:600;line-height:1.45;margin-bottom:10px;color:var(--text-1);}
.step-card p{position:relative;z-index:2;font-size:14px;line-height:1.75;color:var(--text-2);}

/* ---------- ranking ---------- */
.rank-layout{display:grid;grid-template-columns:1fr;gap:20px;}
@media screen and (min-width:1024px){.rank-layout{grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:28px;align-items:start;}}
.rank-feature{
  position:relative;border-radius:var(--r-l);overflow:hidden;border:1px solid var(--line);
  background:var(--surface);box-shadow:var(--sh-1);transition:border-color .2s ease,box-shadow .2s ease;
}
.rank-feature:hover{border-color:var(--primary);box-shadow:var(--sh-2);}
.rank-feature img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease;}
.rank-feature:hover img{transform:scale(1.04);}
.rank-feature-body{padding:22px 22px 24px;}
.rank-feature-body h3{font-size:20px;font-weight:700;line-height:1.4;margin-bottom:10px;color:var(--text-1);}
.rank-feature-body p{font-size:14px;line-height:1.75;color:var(--text-2);margin-bottom:18px;}
.rank-list{display:grid;gap:14px;}
.rank-item{
  display:flex;align-items:center;gap:16px;padding:16px;border-radius:var(--r);
  background:var(--surface);border:1px solid var(--line);
  transition:border-color .2s ease,transform .2s ease,background .2s ease;
}
.rank-item:hover{border-color:var(--primary);transform:translateX(4px);background:var(--surface-2);}
.rank-no{
  flex:0 0 auto;font-size:30px;font-weight:800;line-height:1;letter-spacing:-.03em;
  color:transparent;-webkit-text-stroke:1.5px var(--accent-2);font-variant-numeric:tabular-nums;
}
.rank-thumb{flex:0 0 auto;width:64px;height:64px;border-radius:var(--r-m);overflow:hidden;background:var(--surface-2);}
.rank-thumb img{width:100%;height:100%;object-fit:cover;}
.rank-info{flex:1 1 auto;min-width:0;}
.rank-info h4{font-size:15px;font-weight:600;line-height:1.45;color:var(--text-1);margin-bottom:4px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;}
.rank-info p{font-size:13px;line-height:1.6;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;}
.rank-cta{flex:0 0 auto;}
@media screen and (max-width:639px){
  .rank-item{flex-wrap:wrap;gap:12px;}
  .rank-cta{width:100%;}
  .rank-cta .btn{width:100%;}
}

/* ---------- news (CMS) ---------- */
.news-card{
  height:100%;display:flex;flex-direction:column;border-radius:var(--r);overflow:hidden;
  background:var(--surface);border:1px solid var(--line);
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.news-card:hover{border-color:var(--primary);transform:translateY(-4px);box-shadow:var(--sh-2);}
.news-cover{position:relative;display:block;aspect-ratio:16/9;overflow:hidden;background:var(--surface-2);}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.news-card:hover .news-cover img{transform:scale(1.04);}
.news-cat{
  position:absolute;left:12px;top:12px;z-index:2;padding:4px 10px;border-radius:var(--r-s);
  background:rgba(123,91,255,.88);font-size:12px;font-weight:600;color:#fff;letter-spacing:.02em;
}
.news-body{display:flex;flex-direction:column;flex:1;padding:18px 18px 20px;}
.news-title{font-size:16px;font-weight:600;line-height:1.45;color:var(--text-1);margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-title a:hover{color:var(--primary);}
.news-excerpt{font-size:13px;line-height:1.7;color:var(--text-2);margin-bottom:16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:14px;border-top:1px solid var(--line);}
.news-time{font-size:12px;font-weight:500;letter-spacing:.02em;color:var(--text-3);font-variant-numeric:tabular-nums;}
.news-link{font-size:13px;font-weight:600;color:var(--primary);}
.news-link:hover{color:var(--primary-hover);}

.empty-state{
  text-align:center;padding:56px 24px;border-radius:var(--r);
  background:var(--surface);border:1px dashed rgba(255,255,255,.16);
}
.empty-state i{font-size:28px;color:var(--accent);margin-bottom:16px;}
.empty-state h3{font-size:17px;font-weight:600;color:var(--text-1);margin-bottom:8px;}
.empty-state p{font-size:14px;color:var(--text-2);margin-bottom:20px;}

/* ---------- voices ---------- */
.voice-wrap{position:relative;}
.voice-wrap::before,.voice-wrap::after{content:"";position:absolute;top:0;bottom:14px;width:48px;pointer-events:none;z-index:2;}
.voice-wrap::before{left:0;background:linear-gradient(90deg,var(--bg-0),rgba(14,11,20,0));}
.voice-wrap::after{right:0;background:linear-gradient(270deg,var(--bg-0),rgba(14,11,20,0));}
.voice-track{display:flex;gap:16px;overflow-x:auto;padding:4px 4px 14px;scroll-snap-type:x mandatory;scrollbar-width:none;}
.voice-track::-webkit-scrollbar{display:none;}
.voice-card{
  flex:0 0 80%;scroll-snap-align:start;padding:20px;border-radius:var(--r);
  background:var(--surface);border:1px solid var(--line);
  transition:border-color .2s ease,transform .2s ease;
}
@media screen and (min-width:640px){.voice-card{flex:0 0 calc((100% - 32px)/2.2);}}
@media screen and (min-width:1024px){.voice-card{flex:0 0 calc((100% - 64px)/4);}}
.voice-card:hover{border-color:rgba(198,255,74,.45);transform:translateY(-3px);}
.voice-top{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.voice-avatar{
  width:42px;height:42px;border-radius:999px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  font-size:15px;font-weight:700;color:#fff;
}
.voice-name{font-size:14px;font-weight:600;color:var(--text-1);}
.voice-tag{font-size:12px;color:var(--text-3);letter-spacing:.02em;}
.voice-text{font-size:14px;line-height:1.75;color:var(--text-2);margin-bottom:14px;}
.voice-points{display:flex;gap:4px;color:var(--primary);font-size:11px;}

/* ---------- cta banner ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-l);
  border:1px solid rgba(198,255,74,.32);background:var(--bg-1);
  padding:32px 24px;display:flex;flex-wrap:wrap;align-items:center;gap:20px;justify-content:space-between;
}
@media screen and (min-width:1024px){.cta-band{padding:44px 48px;}}
.cta-band::before{
  content:"";position:absolute;right:-60px;top:-80px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(198,255,74,.18),transparent 66%);pointer-events:none;
}
.cta-band h3{position:relative;z-index:2;font-size:22px;font-weight:700;line-height:1.4;color:var(--text-1);margin-bottom:8px;}
.cta-band p{position:relative;z-index:2;font-size:14px;line-height:1.7;color:var(--text-2);max-width:560px;}
.cta-band .cta-actions{position:relative;z-index:2;display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- faq ---------- */
.accordion{border:0;background:transparent;margin:0;}
.accordion-item{
  border:1px solid var(--line)!important;border-radius:var(--r)!important;
  background:var(--surface);margin-bottom:12px;overflow:hidden;
  transition:border-color .2s ease;
}
.accordion-item:hover{border-color:rgba(198,255,74,.32)!important;}
.accordion-title{
  display:block;position:relative;border:0!important;background:transparent!important;
  padding:20px 60px 20px 22px!important;font-size:16px;font-weight:600;line-height:1.5;
  color:var(--text-1)!important;transition:color .2s ease;
}
.accordion-title:hover{color:var(--primary)!important;}
.accordion-title::before{
  content:"+"!important;position:absolute!important;right:22px!important;top:50%!important;
  margin:0!important;transform:translateY(-50%);font-size:22px;font-weight:400;line-height:1;
  color:var(--primary)!important;transition:transform .26s ease;
}
.accordion-item.is-active .accordion-title::before,
.is-active > .accordion-title::before{content:"+"!important;transform:translateY(-50%) rotate(45deg);}
.accordion-content{border:0!important;background:transparent!important;padding:0 22px 22px!important;color:var(--text-2)!important;font-size:15px;line-height:1.8;}
.accordion-content p{font-size:15px;line-height:1.8;color:var(--text-2);}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-0);border-top:1px solid var(--line);padding:48px 0 0;margin-top:24px;}
@media screen and (min-width:1024px){.site-footer{padding:72px 0 0;}}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media screen and (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media screen and (min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand strong{font-size:17px;font-weight:800;color:var(--text-1);letter-spacing:-.01em;}
.footer-about{font-size:13px;line-height:1.85;color:var(--text-2);max-width:340px;}
.footer-col h4{font-size:14px;font-weight:700;letter-spacing:.06em;color:var(--text-1);margin-bottom:16px;}
.footer-links{display:grid;gap:10px;}
.footer-links a{font-size:14px;color:var(--text-2);display:inline-flex;align-items:center;gap:8px;}
.footer-links a:hover{color:var(--primary);}
.footer-links a::before{content:"";width:4px;height:4px;border-radius:50%;background:var(--text-3);transition:background .2s ease;}
.footer-links a:hover::before{background:var(--primary);}
.footer-note{font-size:13px;line-height:1.85;color:var(--text-3);}
.footer-bottom{margin-top:40px;padding:22px 0;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;}
.footer-bottom p{font-size:12px;color:var(--text-3);letter-spacing:.02em;line-height:1.7;}
.footer-bottom .footer-tags{display:flex;gap:8px;flex-wrap:wrap;}
.footer-bottom .footer-tags span{font-size:12px;color:var(--text-3);padding:3px 10px;border-radius:var(--r-s);border:1px solid var(--line);}

/* ---------- to top ---------- */
.to-top{
  position:fixed;right:16px;bottom:88px;z-index:65;
  width:46px;height:46px;border-radius:999px;border:1px solid var(--line);
  background:rgba(29,24,41,.9);color:var(--text-2);cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .24s ease,transform .24s ease,visibility .24s ease,border-color .2s ease,color .2s ease;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{border-color:var(--primary);color:var(--primary);}
@media screen and (min-width:1024px){.to-top{bottom:32px;right:32px;}}

/* ---------- mobile fixed cta ---------- */
.mobile-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:70;display:none;
  align-items:center;justify-content:space-between;gap:12px;
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  background:rgba(14,11,20,.95);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-top:1px solid var(--line);
}
.mobile-cta span{font-size:13px;font-weight:600;color:var(--text-2);}
@media screen and (max-width:1023px){
  .mobile-cta{display:flex;}
  body{padding-bottom:74px;}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important;scroll-behavior:auto!important;}
}

/* roulang page: category1 */
:root{
  --bg-0:#0E0B14;
  --bg-1:#16121F;
  --surface:#1D1829;
  --surface-2:#262033;
  --line:rgba(255,255,255,.08);
  --primary:#C6FF4A;
  --primary-hover:#A6E82C;
  --accent:#7B5BFF;
  --accent-2:#FF5C8A;
  --text-1:#F3F1FA;
  --text-2:#B4AEC7;
  --text-3:#7C7590;
  --paper:#F6F4FF;
  --paper-text:#1B1726;
  --paper-text-2:#5A5470;
  --radius-card:16px;
  --radius-v:20px;
  --radius-pill:999px;
  --radius-input:12px;
  --radius-badge:6px;
  --shadow-1:0 6px 18px rgba(0,0,0,.35);
  --shadow-2:0 18px 40px rgba(0,0,0,.5);
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px;
  --sp-5:24px; --sp-6:32px; --sp-7:48px; --sp-8:64px; --sp-9:96px;
  --font-cn:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}

html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}

body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease;}
button{font-family:inherit;border:0;background:none;cursor:pointer;color:inherit;}
input,select,textarea{font-family:inherit;font-size:15px;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}

.grid-container{max-width:1240px;padding-left:24px;padding-right:24px;margin:0 auto;}

/* ============ 按钮体系 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 24px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;
  transition:transform .18s ease,background-color .18s ease,box-shadow .18s ease,border-color .18s ease,color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#141A05;box-shadow:0 6px 18px rgba(198,255,74,.18);}
.btn-primary:hover{background:var(--primary-hover);transform:translateY(-2px);box-shadow:0 12px 28px rgba(198,255,74,.26);}
.btn-primary:active{transform:translateY(0) scale(.98);}
.btn-ghost{border-color:rgba(255,255,255,.18);color:var(--text-1);background:rgba(255,255,255,.02);}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0) scale(.98);}
.btn-accent{background:rgba(123,91,255,.16);border-color:rgba(123,91,255,.5);color:#D9CFFF;}
.btn-accent:hover{background:rgba(123,91,255,.28);border-color:var(--accent);transform:translateY(-2px);}
.btn-sm{min-height:38px;padding:0 18px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(14,11,20,.88);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:border-color .25s ease,box-shadow .25s ease,background-color .25s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 10px 30px rgba(0,0,0,.45);background:rgba(14,11,20,.95);}

.brand-row{border-bottom:1px solid transparent;transition:border-color .25s ease;}
.site-header.is-scrolled .brand-row{border-bottom-color:var(--line);}
.brand-inner{display:flex;align-items:center;gap:20px;min-height:74px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-dot{
  width:10px;height:10px;border-radius:3px;background:var(--primary);
  box-shadow:0 0 14px rgba(198,255,74,.7);flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--text-1);}
.brand-text em{font-style:normal;font-size:11px;color:var(--text-3);letter-spacing:.1em;}

.search-box{
  flex:1 1 auto;max-width:420px;position:relative;display:flex;align-items:center;
}
.search-box i{position:absolute;left:14px;color:var(--text-3);font-size:13px;pointer-events:none;}
.search-box input{
  width:100%;height:42px;padding:0 16px 0 38px;
  background:var(--surface-2);border:1px solid var(--line);
  border-radius:var(--radius-input);color:var(--text-1);
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.search-box input::placeholder{color:var(--text-3);}
.search-box input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(198,255,74,.14);}

.brand-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}
.icon-btn{
  width:44px;height:44px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:var(--surface-2);color:var(--text-2);
  transition:border-color .2s ease,color .2s ease,transform .2s ease;
}
.icon-btn:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);}
.icon-btn:active{transform:translateY(0) scale(.97);}
.nav-toggle{display:none;}

.channel-row{border-top:1px solid var(--line);background:rgba(22,18,31,.55);}
.channel-inner{display:flex;align-items:center;gap:20px;min-height:52px;}
.channel-nav{display:flex;align-items:center;gap:10px;overflow-x:auto;scrollbar-width:none;padding:6px 0;}
.channel-nav::-webkit-scrollbar{display:none;}
.channel{
  flex:0 0 auto;padding:7px 16px;border-radius:var(--radius-pill);
  font-size:14px;font-weight:600;color:var(--text-2);
  border:1px solid rgba(255,255,255,.12);background:transparent;
  transition:all .2s ease;white-space:nowrap;
}
.channel:hover{background:rgba(198,255,74,.12);border-color:rgba(198,255,74,.4);color:var(--text-1);}
.channel.is-active{background:var(--primary);border-color:var(--primary);color:#141A05;}
.channel.is-active:hover{background:var(--primary-hover);color:#141A05;}
.hot-tags{display:flex;align-items:center;gap:8px;margin-left:auto;flex:0 0 auto;}
.hot-tag{
  font-size:12px;color:var(--text-3);border:1px dashed rgba(255,255,255,.14);
  padding:3px 10px;border-radius:var(--radius-badge);letter-spacing:.02em;
}

/* ============ 页面横幅 ============ */
.page-banner{
  position:relative;display:flex;align-items:center;overflow:hidden;
  min-height:320px;padding:56px 0 64px;
  background:#0E0B14 url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
}
.page-banner::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(14,11,20,.72) 0%,rgba(14,11,20,.9) 60%,rgba(14,11,20,.98) 100%);
}
.page-banner::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.1;
  background-image:linear-gradient(rgba(255,255,255,.5) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:64px 64px;
}
.banner-inner{position:relative;z-index:2;width:100%;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);letter-spacing:.02em;margin-bottom:18px;}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:var(--text-3);opacity:.6;}
.breadcrumb .current{color:var(--text-2);}
.banner-inner h1{font-size:clamp(28px,5vw,44px);line-height:1.2;font-weight:800;letter-spacing:-.02em;max-width:20em;}
.banner-sub{margin-top:14px;color:var(--text-2);font-size:16px;max-width:34em;}
.banner-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:500;
  padding:5px 12px;border-radius:var(--radius-badge);letter-spacing:.02em;
  border:1px solid rgba(255,255,255,.14);color:var(--text-2);background:rgba(255,255,255,.03);
}
.chip-accent{border-color:rgba(123,91,255,.45);color:#CFC4FF;background:rgba(123,91,255,.14);}
.chip-hot{border-color:rgba(255,92,138,.45);color:#FFC2D5;background:rgba(255,92,138,.12);}

/* ============ 通用板块 ============ */
.section{padding:64px 0;}
.section-dark{background:var(--bg-1);}
.section-tight{padding:48px 0;}
.section-head{margin-bottom:32px;}
.section-head h2{
  font-size:28px;line-height:1.3;font-weight:700;position:relative;padding-left:16px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--primary);
}
.section-head .sub{margin-top:10px;color:var(--text-2);font-size:15px;padding-left:16px;}
.section-lead{color:var(--text-2);font-size:15px;max-width:60em;}

/* ============ 浅色说明区 ============ */
.intro-paper{
  background:var(--paper);color:var(--paper-text);
  border-radius:var(--radius-card);padding:32px 34px;box-shadow:var(--shadow-1);
  position:relative;overflow:hidden;
}
.intro-paper::after{
  content:"";position:absolute;right:-40px;top:-40px;width:180px;height:180px;border-radius:50%;
  background:radial-gradient(circle,rgba(123,91,255,.16),transparent 68%);
}
.intro-paper .paper-label{
  display:inline-block;font-size:12px;font-weight:600;letter-spacing:.14em;
  color:#4A4360;background:rgba(123,91,255,.14);border-radius:var(--radius-badge);
  padding:3px 10px;margin-bottom:14px;
}
.intro-paper p{font-size:16px;line-height:1.85;color:#3A3450;}
.intro-paper p + p{margin-top:12px;}

/* ============ 频道标签行 ============ */
.tab-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:8px 0;}
.tab{
  padding:8px 18px;border-radius:var(--radius-pill);font-size:14px;font-weight:600;
  border:1px solid var(--line);color:var(--text-2);background:transparent;transition:all .2s ease;
}
.tab:hover{background:rgba(198,255,74,.12);border-color:rgba(198,255,74,.4);color:var(--text-1);}
.tab.is-active{background:var(--primary);border-color:var(--primary);color:#141A05;}
.tab-note{font-size:13px;color:var(--text-3);margin-left:auto;letter-spacing:.02em;}

/* ============ 条目卡网格 ============ */
.card-cell{display:flex;margin-bottom:24px;}
.entry-card{
  display:flex;flex-direction:column;width:100%;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;position:relative;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.entry-card:hover{transform:translateY(-4px);border-color:var(--primary);box-shadow:var(--shadow-2);}
.entry-card:active{transform:translateY(-1px) scale(.995);}
.entry-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--surface-2);}
.entry-cover img{width:100%;height:100%;object-fit:cover;transition:transform .22s ease;}
.entry-card:hover .entry-cover img{transform:scale(1.04);}
.entry-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(14,11,20,.15),rgba(14,11,20,.7));
}
.cover-badge{
  position:absolute;left:12px;top:12px;z-index:2;
  font-size:12px;font-weight:600;padding:4px 10px;border-radius:var(--radius-badge);
  background:rgba(123,91,255,.85);color:#F2EEFF;backdrop-filter:blur(4px);
}
.cover-time{
  position:absolute;right:12px;bottom:12px;z-index:2;font-size:12px;font-weight:600;
  padding:3px 9px;border-radius:var(--radius-badge);background:rgba(14,11,20,.75);color:var(--text-2);
  font-variant-numeric:tabular-nums;letter-spacing:.02em;
}
.entry-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.entry-title{font-size:17px;line-height:1.45;font-weight:600;color:var(--text-1);}
.entry-desc{
  font-size:14px;color:var(--text-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.entry-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:6px;}
.tag{
  font-size:12px;font-weight:500;letter-spacing:.02em;padding:3px 10px;
  border-radius:var(--radius-badge);color:var(--text-3);
  border:1px solid rgba(255,255,255,.1);background:rgba(255,255,255,.03);
  transition:color .2s ease,border-color .2s ease;
}
.entry-card:hover .tag{color:var(--text-2);border-color:rgba(198,255,74,.35);}
.tag-hot{color:#FFC2D5;border-color:rgba(255,92,138,.35);background:rgba(255,92,138,.1);}

/* ============ 排查流程 ============ */
.step-list{display:flex;flex-direction:column;gap:0;}
.step{
  display:grid;grid-template-columns:88px 1fr;gap:24px;
  padding:26px 0;border-top:1px solid var(--line);
}
.step:last-child{border-bottom:1px solid var(--line);}
.step-num{
  font-size:40px;font-weight:800;line-height:1;letter-spacing:-.03em;
  color:transparent;-webkit-text-stroke:1px rgba(198,255,74,.65);
  font-variant-numeric:tabular-nums;
}
.step-body h3{font-size:19px;font-weight:600;margin-bottom:8px;}
.step-body p{color:var(--text-2);font-size:15px;max-width:60em;}
.step-body .step-tip{
  display:inline-block;margin-top:10px;font-size:12.5px;color:var(--text-3);
  letter-spacing:.02em;border-left:2px solid var(--accent);padding-left:10px;
}

/* ============ FAQ ============ */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 4px;text-align:left;font-size:16.5px;font-weight:600;color:var(--text-1);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--primary);}
.faq-icon{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;
  border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;
  color:var(--primary);font-size:13px;transition:transform .25s ease,background-color .25s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:rgba(198,255,74,.14);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-item.is-open .faq-a{max-height:420px;}
.faq-a p{padding:0 4px 24px;color:var(--text-2);font-size:15px;max-width:64em;}

/* ============ CTA 横幅 ============ */
.cta-band{
  background:linear-gradient(135deg,rgba(198,255,74,.08),rgba(123,91,255,.12)),var(--bg-0);
  border:1px solid rgba(198,255,74,.45);border-radius:var(--radius-v);
  padding:34px 36px;display:flex;align-items:center;gap:24px;flex-wrap:wrap;
  box-shadow:var(--shadow-1);position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;bottom:-80px;width:240px;height:240px;
  background:radial-gradient(circle,rgba(123,91,255,.28),transparent 70%);pointer-events:none;
}
.cta-band h2{font-size:22px;line-height:1.4;font-weight:700;position:relative;z-index:1;}
.cta-band p{color:var(--text-2);font-size:14.5px;margin-top:6px;position:relative;z-index:1;max-width:46em;}
.cta-actions{margin-left:auto;display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:1;}

/* ============ 交叉入口 ============ */
.cross-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.cross-card{
  display:flex;align-items:center;gap:18px;padding:22px 24px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.cross-card:hover{border-color:var(--primary);transform:translateY(-3px);box-shadow:var(--shadow-1);}
.cross-icon{
  width:46px;height:46px;border-radius:14px;flex:0 0 auto;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(123,91,255,.16);color:#CFC4FF;font-size:17px;
}
.cross-card h3{font-size:16.5px;font-weight:600;margin-bottom:4px;}
.cross-card p{font-size:13.5px;color:var(--text-3);}
.cross-card .arrow{margin-left:auto;color:var(--text-3);transition:transform .2s ease,color .2s ease;}
.cross-card:hover .arrow{color:var(--primary);transform:translateX(4px);}
.back-home{margin-top:24px;display:flex;justify-content:center;}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-0);border-top:1px solid var(--line);padding:64px 0 28px;margin-top:8px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand strong{font-size:16px;font-weight:800;color:var(--text-1);}
.footer-about{color:var(--text-2);font-size:14px;line-height:1.8;max-width:32em;}
.footer-col h4{font-size:14px;font-weight:700;color:var(--text-1);margin-bottom:14px;letter-spacing:.04em;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:var(--text-2);}
.footer-links a:hover{color:var(--primary);}
.footer-note{font-size:13.5px;color:var(--text-3);line-height:1.8;}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--text-3);letter-spacing:.02em;}
.footer-tags{display:flex;gap:10px;flex-wrap:wrap;}
.footer-tags span{
  font-size:12px;color:var(--text-3);padding:3px 10px;border-radius:var(--radius-badge);
  border:1px solid rgba(255,255,255,.08);
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .search-box{max-width:280px;}
  .hot-tags{display:none;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
  .footer-grid > div:last-child{grid-column:1 / -1;}
  .step{grid-template-columns:64px 1fr;gap:18px;}
  .step-num{font-size:34px;}
}

@media (max-width:768px){
  .grid-container{padding-left:18px;padding-right:18px;}
  .brand-inner{justify-content:space-between;gap:12px;min-height:66px;}
  .search-box{display:none;}
  .nav-toggle{display:inline-flex;}
  .brand-text strong{font-size:15.5px;}
  .brand-text em{font-size:10px;letter-spacing:.06em;}
  .channel-inner{min-height:50px;gap:12px;}
  .channel{font-size:13.5px;padding:6px 14px;}
  .page-banner{min-height:0;padding:40px 0 48px;}
  .section{padding:52px 0;}
  .section-head h2{font-size:23px;}
  .intro-paper{padding:24px 20px;}
  .cta-band{padding:26px 22px;}
  .cta-actions{margin-left:0;width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .cross-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-grid > div:first-child{grid-column:1 / -1;}
  .footer-grid > div:last-child{grid-column:1 / -1;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .step{grid-template-columns:1fr;gap:10px;padding:22px 0;}
  .step-num{font-size:30px;}
  .tab-note{margin-left:0;width:100%;}
}

@media (max-width:520px){
  .brand-text strong{font-size:14.5px;letter-spacing:0;}
  .brand-text em{display:none;}
  .btn{padding:0 18px;font-size:14.5px;}
  .entry-body{padding:16px 16px 18px;}
  .entry-title{font-size:16px;}
  .banner-inner h1{font-size:26px;}
  .banner-sub{font-size:15px;}
  .faq-q{font-size:15.5px;padding:18px 2px;}
}

@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: article */
:root{
  --bg-0:#0E0B14;
  --bg-1:#16121F;
  --surface:#1D1829;
  --surface-2:#262033;
  --line:rgba(255,255,255,.08);
  --primary:#C6FF4A;
  --primary-hover:#A6E82C;
  --primary-deep:#8FD400;
  --accent:#7B5BFF;
  --accent-2:#FF5C8A;
  --text-1:#F3F1FA;
  --text-2:#B4AEC7;
  --text-3:#7C7590;
  --paper:#F6F4FF;
  --paper-text:#1B1726;
  --paper-text-2:#5A5470;
  --radius-sm:12px;
  --radius:16px;
  --radius-lg:20px;
  --shadow-1:0 6px 18px rgba(0,0,0,.35);
  --shadow-2:0 18px 40px rgba(0,0,0,.5);
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:24px; --sp-6:32px; --sp-7:48px; --sp-8:64px; --sp-9:96px;
  --font-cn:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
input,button{outline:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
.grid-container{max-width:1240px;padding-left:24px;padding-right:24px;margin:0 auto;}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--primary);color:#131018;padding:10px 16px;border-radius:0 0 12px 0;z-index:200;}
.skip-link:focus{left:0;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border:1px solid transparent;border-radius:999px;
  font-size:15px;font-weight:600;letter-spacing:.01em;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease,filter .18s ease;
}
.btn-primary{background:var(--primary);color:#131018;box-shadow:0 6px 18px rgba(198,255,74,.18);}
.btn-primary:hover{background:var(--primary-hover);transform:translateY(-2px);box-shadow:0 12px 28px rgba(198,255,74,.28);filter:brightness(1.04);}
.btn-primary:active{transform:translateY(0) scale(.98);box-shadow:0 4px 12px rgba(198,255,74,.2);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text-1);}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0) scale(.98);}
.btn-outline{background:rgba(123,91,255,.12);border-color:rgba(123,91,255,.45);color:#D9CEFF;}
.btn-outline:hover{background:rgba(123,91,255,.22);transform:translateY(-2px);}
.btn-outline:active{transform:translateY(0) scale(.98);}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(14,11,20,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background-color .22s ease,border-color .22s ease;
}
.site-header.is-scrolled{background:rgba(14,11,20,.95);border-bottom-color:var(--line);}
.brand-row{padding:10px 0;}
.brand-inner{display:flex;align-items:center;gap:16px;flex-wrap:nowrap;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-dot{width:10px;height:10px;border-radius:3px;background:var(--primary);box-shadow:0 0 14px rgba(198,255,74,.7);flex:0 0 auto;}
.brand-text{display:flex;flex-direction:column;line-height:1.18;}
.brand-text strong{font-size:17px;font-weight:800;color:var(--text-1);letter-spacing:-.01em;white-space:nowrap;}
.brand-text em{font-style:normal;font-size:11px;color:var(--text-3);letter-spacing:.05em;white-space:nowrap;}
.search-box{
  flex:1 1 auto;max-width:420px;display:flex;align-items:center;gap:10px;
  background:var(--surface-2);border:1px solid var(--line);border-radius:999px;
  padding:0 16px;height:40px;transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box i{color:var(--text-3);font-size:13px;}
.search-box input{flex:1;background:transparent;border:0;color:var(--text-1);font-size:14px;height:38px;}
.search-box input::placeholder{color:var(--text-3);}
.search-box:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(198,255,74,.14);}
.brand-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}
.icon-btn{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:var(--surface);color:var(--text-1);cursor:pointer;font-size:16px;
  transition:border-color .2s ease,color .2s ease,background-color .2s ease;
}
.icon-btn:hover{border-color:var(--primary);color:var(--primary);background:rgba(198,255,74,.08);}
.channel-row{border-top:1px solid var(--line);}
.channel-inner{display:flex;align-items:center;gap:18px;padding:9px 0;min-height:52px;}
.channel-nav{display:flex;align-items:center;gap:8px;overflow-x:auto;scrollbar-width:none;flex:1 1 auto;}
.channel-nav::-webkit-scrollbar{display:none;}
.channel{
  display:inline-block;white-space:nowrap;padding:8px 15px;border-radius:999px;
  border:1px solid transparent;color:var(--text-2);font-size:14px;font-weight:500;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.channel:hover{background:rgba(198,255,74,.12);color:var(--text-1);}
.channel.is-active{background:var(--primary);color:#131018;font-weight:700;box-shadow:0 4px 14px rgba(198,255,74,.2);}
.hot-tags{display:flex;gap:8px;flex:0 0 auto;}
.hot-tag{
  font-size:12px;letter-spacing:.02em;color:#CBBDFF;background:rgba(123,91,255,.1);
  border:1px solid rgba(123,91,255,.35);border-radius:6px;padding:3px 9px;white-space:nowrap;
}
.mobile-drawer{display:none;border-top:1px solid var(--line);background:var(--bg-1);padding:16px 0;}
.mobile-drawer.is-open{display:block;}
.mobile-drawer .search-box{max-width:100%;margin-bottom:12px;}
.mobile-drawer .hot-tags{flex-wrap:wrap;}

/* ---------- 文章头 ---------- */
.article-hero{
  position:relative;padding:28px 0 48px;
  background-image:linear-gradient(180deg,rgba(14,11,20,.74) 0%,rgba(14,11,20,.92) 62%,rgba(14,11,20,1) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center center;border-bottom:1px solid var(--line);
}
.article-hero::after{
  content:"";position:absolute;inset:auto 0 0 0;height:120px;
  background:linear-gradient(180deg,rgba(14,11,20,0),var(--bg-0));
  pointer-events:none;
}
.article-hero .grid-container{position:relative;z-index:2;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:20px;letter-spacing:.02em;}
.breadcrumb a{color:var(--text-2);transition:color .18s ease;}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:var(--text-3);}
.breadcrumb .current{color:var(--text-3);max-width:min(560px,100%);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.badge-cat{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;letter-spacing:.06em;
  color:#DCCFFF;background:rgba(123,91,255,.16);border:1px solid rgba(123,91,255,.4);
  border-radius:6px;padding:5px 12px;margin-bottom:18px;
}
.article-title{
  font-size:clamp(26px,4.4vw,42px);line-height:1.28;font-weight:800;letter-spacing:-.02em;
  color:var(--text-1);max-width:920px;margin-bottom:20px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
  font-size:13px;color:var(--text-3);letter-spacing:.02em;font-variant-numeric:tabular-nums;
}
.article-meta span{display:inline-flex;align-items:center;gap:7px;}
.article-meta i{color:var(--accent);font-size:12px;}

/* ---------- 布局 ---------- */
.page-main{padding:var(--sp-7) 0 var(--sp-8);}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:32px;align-items:start;}
.article-card{
  background:var(--paper);color:var(--paper-text);border-radius:var(--radius-lg);
  padding:clamp(22px,3.4vw,44px);box-shadow:var(--shadow-2);border:1px solid rgba(255,255,255,.06);
}
.mobile-toc{display:none;margin-bottom:18px;}
.mobile-toc summary{
  list-style:none;cursor:pointer;background:rgba(27,23,38,.06);border:1px solid rgba(27,23,38,.12);
  border-radius:12px;padding:12px 16px;font-size:14px;font-weight:600;color:var(--paper-text);
  display:flex;align-items:center;justify-content:space-between;
}
.mobile-toc summary::-webkit-details-marker{display:none;}
.mobile-toc summary::after{content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;font-size:11px;color:var(--paper-text-2);}
.mobile-toc[open] summary::after{content:"\f077";}
.mobile-toc .toc-list{margin-top:10px;}

/* ---------- 正文排版 ---------- */
.article-body{font-size:17px;line-height:1.9;color:var(--paper-text);max-width:44em;}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.2em;color:#2A2438;word-break:break-word;}
.article-body h2{
  position:relative;font-size:clamp(20px,2.4vw,25px);line-height:1.4;font-weight:700;
  color:#151129;margin:2em 0 .85em;padding-left:18px;letter-spacing:-.01em;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;border-radius:2px;background:var(--primary-deep);
}
.article-body h3{font-size:19px;line-height:1.5;font-weight:600;color:#1B1726;margin:1.7em 0 .6em;}
.article-body h4{font-size:17px;font-weight:600;color:#1B1726;margin:1.4em 0 .5em;}
.article-body a{color:#5B3FD6;text-decoration:underline;text-underline-offset:3px;transition:color .18s ease;}
.article-body a:hover{color:#3F27AD;}
.article-body strong{font-weight:700;color:#14101F;}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.5em;}
.article-body ul li{list-style:disc;margin-bottom:.5em;color:#2A2438;}
.article-body ol li{list-style:decimal;margin-bottom:.5em;color:#2A2438;}
.article-body li::marker{color:#7A6AB8;}
.article-body blockquote{
  margin:1.5em 0;padding:16px 20px;border-left:3px solid var(--accent);
  background:rgba(123,91,255,.09);border-radius:0 12px 12px 0;color:#3D3752;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:12px;margin:1.5em auto;max-width:100%;height:auto;box-shadow:0 8px 24px rgba(27,23,38,.12);}
.article-body figure{margin:1.5em 0;}
.article-body figcaption{font-size:12px;color:var(--paper-text-2);text-align:center;margin-top:8px;line-height:1.6;}
.article-body table{width:100%;border-collapse:collapse;margin:1.5em 0;font-size:15px;line-height:1.7;display:block;overflow-x:auto;}
.article-body th,.article-body td{border:1px solid rgba(27,23,38,.14);padding:10px 14px;text-align:left;white-space:nowrap;}
.article-body th{background:rgba(123,91,255,.1);font-weight:600;color:#1B1726;}
.article-body hr{border:0;border-top:1px solid rgba(27,23,38,.12);margin:2em 0;}
.article-body code{
  background:rgba(27,23,38,.07);border-radius:6px;padding:2px 6px;font-size:.92em;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:#3D2E86;
}
.article-body pre{
  background:#211C31;color:#EDE9FA;border-radius:12px;padding:16px 18px;overflow-x:auto;
  margin:1.5em 0;font-size:14px;line-height:1.7;
}
.article-body pre code{background:transparent;color:inherit;padding:0;}

/* ---------- 文末操作 ---------- */
.article-foot{margin-top:32px;padding-top:24px;border-top:1px solid rgba(27,23,38,.12);}
.article-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px;}
.article-tags a{
  font-size:13px;color:#4B4270;background:rgba(123,91,255,.1);border:1px solid rgba(123,91,255,.24);
  border-radius:999px;padding:6px 14px;transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.article-tags a:hover{background:rgba(123,91,255,.2);color:#2E2359;border-color:rgba(123,91,255,.45);}
.article-actions{display:flex;flex-wrap:wrap;align-items:center;gap:12px;}
.article-actions .btn{min-height:42px;}
.article-actions .btn-ghost{border-color:rgba(27,23,38,.18);color:#3D3752;}
.article-actions .btn-ghost:hover{border-color:var(--accent);color:#4B33C4;}
.article-actions .btn-outline{background:rgba(123,91,255,.12);border-color:rgba(123,91,255,.35);color:#4B33C4;}
.article-actions .btn-outline:hover{background:rgba(123,91,255,.2);}

/* ---------- 空态 ---------- */
.empty-state{
  text-align:center;padding:52px 20px;border:1px dashed rgba(27,23,38,.2);border-radius:var(--radius);
  background:rgba(27,23,38,.03);
}
.empty-state i{font-size:30px;color:#8B7FC7;margin-bottom:14px;}
.empty-state h2{font-size:20px;font-weight:700;color:#1B1726;margin-bottom:10px;padding-left:0;}
.empty-state h2::before{display:none;}
.empty-state p{font-size:15px;color:var(--paper-text-2);margin-bottom:20px;}
.empty-state .btn{min-height:44px;}

/* ---------- 侧栏 ---------- */
.side{position:sticky;top:104px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px;box-shadow:var(--shadow-1);
}
.side-card h3{
  font-size:14px;font-weight:700;letter-spacing:.08em;color:var(--text-1);
  display:flex;align-items:center;gap:8px;margin-bottom:16px;
}
.side-card h3::before{content:"";width:4px;height:14px;border-radius:2px;background:var(--primary);}
.toc-list{display:flex;flex-direction:column;gap:2px;}
.toc-link{
  display:block;font-size:13.5px;line-height:1.6;color:var(--text-2);padding:8px 10px;
  border-radius:8px;border-left:2px solid transparent;transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.toc-link:hover,.toc-link.is-current{background:rgba(198,255,74,.1);color:var(--primary);border-left-color:var(--primary);}
.toc-link.toc-3{padding-left:22px;font-size:13px;color:var(--text-3);}
.rank-list{display:flex;flex-direction:column;gap:2px;}
.rank-item{display:flex;gap:12px;align-items:flex-start;padding:10px;border-radius:10px;transition:background-color .18s ease;}
.rank-item:hover{background:rgba(255,255,255,.04);}
.rank-num{
  font-size:16px;font-weight:800;color:var(--accent-2);font-variant-numeric:tabular-nums;
  line-height:1.5;min-width:26px;letter-spacing:-.02em;
}
.rank-item h4{font-size:14px;font-weight:600;line-height:1.55;color:var(--text-1);margin-bottom:4px;transition:color .18s ease;}
.rank-item:hover h4{color:var(--primary);}
.rank-item p{font-size:12px;color:var(--text-3);line-height:1.5;}

/* ---------- 相关推荐 ---------- */
.section{padding:var(--sp-7) 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px;}
.section-head h2{
  position:relative;font-size:clamp(20px,2.6vw,26px);line-height:1.35;font-weight:700;
  color:var(--text-1);padding-left:16px;letter-spacing:-.01em;
}
.section-head h2::before{content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:2px;background:var(--primary);}
.section-head p{font-size:14px;color:var(--text-2);margin-top:8px;padding-left:16px;}
.section-head .link-more{font-size:14px;color:var(--primary);white-space:nowrap;transition:opacity .18s ease;}
.section-head .link-more:hover{opacity:.75;}
.rec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.rec-card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.rec-card:hover{transform:translateY(-4px);border-color:var(--primary);box-shadow:var(--shadow-2);}
.rec-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--surface-2);}
.rec-cover img{width:100%;height:100%;object-fit:cover;transition:transform .22s ease;}
.rec-card:hover .rec-cover img{transform:scale(1.04);}
.rec-cover .tag-on{
  position:absolute;left:12px;top:12px;font-size:11px;font-weight:600;letter-spacing:.04em;
  background:rgba(14,11,20,.78);color:var(--primary);border:1px solid rgba(198,255,74,.4);
  border-radius:6px;padding:4px 9px;backdrop-filter:blur(6px);
}
.rec-body{padding:18px 18px 20px;}
.rec-body h3{
  font-size:17px;font-weight:600;line-height:1.5;color:var(--text-1);margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rec-card:hover .rec-body h3{color:var(--primary);}
.rec-body p{
  font-size:13.5px;line-height:1.7;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:14px;
}
.rec-meta{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--text-3);letter-spacing:.02em;}
.rec-meta .dot-line{display:inline-flex;align-items:center;gap:6px;}
.rec-meta .dot-line i{color:var(--accent-2);font-size:11px;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  margin-bottom:12px;overflow:hidden;transition:border-color .2s ease,background-color .2s ease;
}
.faq-item:hover{border-color:rgba(198,255,74,.35);}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;padding:18px 58px 18px 20px;
  font-size:16px;font-weight:600;color:var(--text-1);line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--primary);line-height:1;transition:transform .22s ease;
}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg);}
.faq-body{padding:0 20px 20px;font-size:15px;line-height:1.85;color:var(--text-2);}
.faq-body p{margin-bottom:10px;}
.faq-body p:last-child{margin-bottom:0;}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(120deg,rgba(198,255,74,.1) 0%,rgba(123,91,255,.12) 55%,rgba(255,92,138,.1) 100%),var(--bg-1);
  border:1px solid rgba(198,255,74,.35);border-radius:var(--radius-lg);
  padding:clamp(24px,3.6vw,40px);display:flex;align-items:center;justify-content:space-between;gap:24px;
  box-shadow:var(--shadow-2);
}
.cta-band h2{font-size:clamp(19px,2.4vw,24px);font-weight:700;color:var(--text-1);margin-bottom:10px;letter-spacing:-.01em;}
.cta-band p{font-size:14.5px;color:var(--text-2);max-width:640px;line-height:1.8;}
.cta-band .btn{flex:0 0 auto;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-0);border-top:1px solid var(--line);padding:64px 0 28px;margin-top:var(--sp-7);}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.3fr;gap:32px;padding-bottom:36px;border-bottom:1px solid var(--line);}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand strong{font-size:17px;font-weight:800;color:var(--text-1);}
.footer-about{font-size:14px;line-height:1.85;color:var(--text-2);max-width:420px;}
.footer-col h4{font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--text-1);margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:var(--text-2);transition:color .18s ease,transform .18s ease;display:inline-block;}
.footer-links a:hover{color:var(--primary);transform:translateX(3px);}
.footer-note{font-size:13.5px;line-height:1.8;color:var(--text-2);}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:24px;flex-wrap:wrap;}
.footer-bottom p{font-size:12.5px;color:var(--text-3);letter-spacing:.02em;}
.footer-tags{display:flex;gap:10px;flex-wrap:wrap;}
.footer-tags span{font-size:12px;color:var(--text-3);border:1px solid var(--line);border-radius:6px;padding:4px 10px;}

/* ---------- 悬浮组件 ---------- */
.back-top{
  position:fixed;right:22px;bottom:26px;width:46px;height:46px;border-radius:999px;
  background:var(--surface);border:1px solid var(--line);color:var(--text-1);
  display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:70;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s ease,border-color .2s ease,color .2s ease;
}
.back-top.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.back-top:hover{border-color:var(--primary);color:var(--primary);}
.mobile-dock{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:75;
  background:rgba(22,18,31,.96);backdrop-filter:blur(12px);border-top:1px solid var(--line);
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));gap:10px;
}
.mobile-dock .btn{flex:1;}

/* ---------- 断点 ---------- */
@media screen and (max-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:24px;}
  .side{position:static;top:auto;flex-direction:row;flex-wrap:wrap;}
  .side-card{flex:1 1 300px;}
  .rec-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px;}
  .footer-grid > div:last-child{grid-column:1 / -1;}
}
@media screen and (max-width:768px){
  .grid-container{padding-left:18px;padding-right:18px;}
  .brand-text strong{font-size:15.5px;}
  .brand-text em{display:none;}
  .search-box{display:none;}
  .icon-btn{display:inline-flex;align-items:center;justify-content:center;}
  .hot-tags{display:none;}
  .channel-inner{padding:8px 0;gap:10px;}
  .channel{font-size:13.5px;padding:7px 13px;}
  .section{padding:48px 0;}
  .page-main{padding:40px 0 56px;}
  .article-hero{padding:20px 0 36px;}
  .article-card{border-radius:16px;padding:22px 18px;}
  .article-body{font-size:16px;line-height:1.85;max-width:100%;}
  .mobile-toc{display:block;}
  .side{display:none;}
  .rec-grid{grid-template-columns:minmax(0,1fr);}
  .cta-band{flex-direction:column;align-items:flex-start;text-align:left;}
  .cta-band .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .back-top{bottom:86px;right:16px;}
  .mobile-dock{display:flex;}
  body{padding-bottom:70px;}
}
@media screen and (max-width:520px){
  .article-title{font-size:23px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:6px;}
  .article-meta{gap:8px 16px;font-size:12.5px;}
  .faq-item summary{padding:16px 50px 16px 16px;font-size:15px;}
  .brand-text strong{font-size:14.5px;letter-spacing:-.02em;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --bg-0:#0E0B14;
  --bg-1:#16121F;
  --surface:#1D1829;
  --surface-2:#262033;
  --line:rgba(255,255,255,.08);
  --primary:#C6FF4A;
  --primary-hover:#A6E82C;
  --accent:#7B5BFF;
  --accent-2:#FF5C8A;
  --text-1:#F3F1FA;
  --text-2:#B4AEC7;
  --text-3:#7C7590;
  --paper:#F6F4FF;
  --paper-1:#1B1726;
  --paper-2:#5A5470;
  --radius-s:6px;
  --radius:12px;
  --radius-card:16px;
  --radius-lg:20px;
  --radius-pill:999px;
  --shadow-1:0 6px 18px rgba(0,0,0,.35);
  --shadow-2:0 18px 40px rgba(0,0,0,.5);
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:24px;
  --sp-6:32px; --sp-7:48px; --sp-8:64px; --sp-9:96px;
  --ease:200ms cubic-bezier(.4,0,.2,1);
  --font-cn:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--text-1);
  background:var(--bg-0);
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;background:var(--surface-2);}
a{color:inherit;text-decoration:none;transition:color var(--ease),opacity var(--ease);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}

.grid-container{max-width:1240px;margin:0 auto;padding-left:24px;padding-right:24px;width:100%;}
.grid-container.full{padding-left:0;padding-right:0;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:200;
  background:rgba(14,11,20,.88);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:border-color var(--ease),background var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line);background:rgba(14,11,20,.96);}
.brand-row{padding:12px 0;}
.brand-inner{display:flex;align-items:center;gap:16px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-dot{
  width:10px;height:10px;border-radius:3px;background:var(--primary);
  box-shadow:0 0 12px rgba(198,255,74,.7);flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text strong{font-size:16px;font-weight:800;letter-spacing:-.01em;color:var(--text-1);white-space:nowrap;}
.brand-text em{font-style:normal;font-size:11.5px;letter-spacing:.02em;color:var(--text-3);white-space:nowrap;}

.search-box{
  display:flex;align-items:center;gap:10px;
  flex:1 1 auto;max-width:400px;
  height:40px;padding:0 16px;
  background:var(--surface-2);
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.search-box:focus-within{border-color:rgba(198,255,74,.5);box-shadow:0 0 0 3px rgba(198,255,74,.12);}
.search-box i{color:var(--text-3);font-size:13px;}
.search-box input{
  flex:1;height:100%;border:0;background:transparent;color:var(--text-1);font-size:14px;outline:none;
}
.search-box input::placeholder{color:var(--text-3);}

.brand-actions{margin-left:auto;display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.icon-btn{
  width:42px;height:42px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--text-2);background:var(--surface);
  transition:all var(--ease);
}
.icon-btn:hover{color:var(--text-1);border-color:rgba(198,255,74,.45);transform:translateY(-2px);}
.icon-btn:active{transform:translateY(0) scale(.98);}
.nav-toggle{display:none;}

.channel-row{
  border-top:1px solid var(--line);
  background:rgba(22,18,31,.72);
}
.channel-inner{display:flex;align-items:center;gap:16px;}
.channel-nav{
  display:flex;align-items:center;gap:8px;
  padding:10px 0;overflow-x:auto;scrollbar-width:none;
}
.channel-nav::-webkit-scrollbar{display:none;}
.channel{
  display:inline-block;white-space:nowrap;
  padding:8px 16px;border-radius:var(--radius-pill);
  border:1px solid transparent;
  font-size:14px;font-weight:500;color:var(--text-2);
  transition:all var(--ease);
}
.channel:hover{background:rgba(198,255,74,.12);color:var(--text-1);}
.channel:active{transform:scale(.98);}
.channel.is-active{
  background:var(--primary);border-color:var(--primary);
  color:#10130A;font-weight:700;
}
.hot-tags{display:flex;gap:8px;margin-left:auto;flex:0 0 auto;}
.hot-tag{
  font-size:12px;font-weight:500;letter-spacing:.02em;
  color:var(--text-3);border:1px solid var(--line);
  padding:4px 12px;border-radius:var(--radius-pill);white-space:nowrap;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:transform var(--ease),box-shadow var(--ease),filter var(--ease),background var(--ease),border-color var(--ease);
  min-height:44px;
}
.btn-primary{background:var(--primary);color:#10130A;box-shadow:0 6px 18px rgba(198,255,74,.22);}
.btn-primary:hover{background:var(--primary-hover);filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 14px 30px rgba(198,255,74,.28);}
.btn-primary:active{transform:translateY(0) scale(.98);box-shadow:0 4px 12px rgba(198,255,74,.2);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text-1);}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);background:rgba(198,255,74,.08);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0) scale(.98);}
.btn-accent{background:rgba(123,91,255,.16);border-color:rgba(123,91,255,.5);color:#CFC4FF;}
.btn-accent:hover{background:rgba(123,91,255,.28);color:#fff;transform:translateY(-2px);}
.btn-sm{padding:9px 18px;font-size:13.5px;min-height:38px;}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}

/* ---------- 页面横幅 ---------- */
.page-banner{
  position:relative;
  min-height:300px;
  display:flex;align-items:flex-end;
  background-image:linear-gradient(90deg,rgba(14,11,20,.92) 0%,rgba(14,11,20,.68) 55%,rgba(14,11,20,.5) 100%),
                   linear-gradient(180deg,rgba(14,11,20,.35) 0%,rgba(14,11,20,.9) 100%),
                   url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
}
.page-banner::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:48px 48px;
  opacity:.6;pointer-events:none;
}
.page-banner::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:120px;
  background:linear-gradient(180deg,rgba(14,11,20,0) 0%,var(--bg-0) 100%);
  pointer-events:none;
}
.banner-inner{position:relative;z-index:2;padding:72px 0 44px;width:100%;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:16px;flex-wrap:wrap;}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .current{color:var(--text-2);}
.banner-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:600;letter-spacing:.08em;
  color:var(--primary);
  background:rgba(198,255,74,.1);
  border:1px solid rgba(198,255,74,.32);
  padding:5px 14px;border-radius:var(--radius-pill);
  margin-bottom:18px;
}
.banner-title{
  font-size:clamp(28px,5vw,44px);
  font-weight:800;line-height:1.2;letter-spacing:-.02em;
  color:var(--text-1);max-width:16em;
}
.banner-sub{margin-top:14px;font-size:16px;color:var(--text-2);max-width:34em;}
.banner-meta{display:flex;gap:20px;flex-wrap:wrap;margin-top:22px;font-size:12.5px;letter-spacing:.02em;color:var(--text-3);font-variant-numeric:tabular-nums;}
.banner-meta strong{color:var(--primary);font-weight:700;}

/* ---------- 版块通用 ---------- */
.section{padding:72px 0;}
.section-tight{padding:48px 0;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap;}
.sec-title{
  position:relative;padding-left:14px;
  font-size:clamp(22px,3vw,28px);font-weight:700;line-height:1.3;letter-spacing:-.01em;
}
.sec-title::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:2px;background:var(--primary);
}
.sec-desc{margin-top:10px;font-size:14.5px;color:var(--text-2);max-width:52em;}
.sec-link{font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px;}
.sec-link:hover{color:var(--primary-hover);gap:10px;}
.sec-link i{font-size:12px;}

/* ---------- 说明浅色区 ---------- */
.intro-paper-wrap{position:relative;z-index:3;margin-top:-46px;}
.intro-paper{
  background:var(--paper);
  color:var(--paper-1);
  border-radius:var(--radius-lg);
  padding:34px 36px;
  box-shadow:var(--shadow-2);
}
.intro-paper h2{
  position:relative;padding-left:14px;
  font-size:20px;font-weight:700;line-height:1.4;color:var(--paper-1);
  margin-bottom:14px;
}
.intro-paper h2::before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:2px;background:var(--primary);}
.intro-paper p{font-size:15.5px;line-height:1.85;color:var(--paper-2);}
.section-tabs{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px;}
.tab{
  font-size:13px;font-weight:600;padding:7px 16px;border-radius:var(--radius-pill);
  border:1px solid rgba(27,23,38,.14);color:var(--paper-2);background:rgba(123,91,255,.07);
  transition:all var(--ease);
}
.tab:hover{background:rgba(123,91,255,.16);color:var(--paper-1);}
.tab.is-active{background:var(--paper-1);color:#fff;border-color:var(--paper-1);}

/* ---------- 主视觉两栏 ---------- */
.layout-2col{display:grid;grid-template-columns:1.55fr 1fr;gap:24px;align-items:start;}

.feature-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:border-color var(--ease),box-shadow var(--ease),transform var(--ease);
}
.feature-card:hover{border-color:var(--primary);box-shadow:var(--shadow-2);transform:translateY(-3px);}
.feature-media{position:relative;aspect-ratio:16/9;overflow:hidden;}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease);}
.feature-card:hover .feature-media img{transform:scale(1.04);}
.media-badge{
  position:absolute;left:16px;top:16px;
  font-size:12px;font-weight:700;letter-spacing:.04em;
  padding:5px 12px;border-radius:var(--radius-s);
  background:rgba(14,11,20,.72);color:var(--primary);
  border:1px solid rgba(198,255,74,.4);
  backdrop-filter:blur(6px);
}
.media-time{
  position:absolute;right:16px;bottom:16px;
  font-size:12px;font-weight:600;font-variant-numeric:tabular-nums;
  padding:4px 10px;border-radius:var(--radius-s);
  background:rgba(14,11,20,.76);color:var(--text-1);
}
.feature-body{padding:26px 28px 28px;}
.feature-body h3{font-size:22px;font-weight:700;line-height:1.4;letter-spacing:-.01em;margin-bottom:12px;}
.feature-body p{font-size:15px;color:var(--text-2);line-height:1.85;}
.card-meta{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  margin-top:18px;font-size:12.5px;letter-spacing:.02em;color:var(--text-3);
  font-variant-numeric:tabular-nums;
}
.chip{
  display:inline-block;font-size:12px;font-weight:600;letter-spacing:.02em;
  padding:4px 12px;border-radius:var(--radius-s);
  background:rgba(123,91,255,.16);color:#C4B6FF;border:1px solid rgba(123,91,255,.35);
}
.chip-pink{background:rgba(255,92,138,.14);color:#FFB4CB;border-color:rgba(255,92,138,.34);}
.chip-lime{background:rgba(198,255,74,.12);color:var(--primary);border-color:rgba(198,255,74,.34);}

/* ---------- 堆叠小卡 ---------- */
.stack-list{display:grid;gap:16px;}
.mini-card{
  display:grid;grid-template-columns:112px 1fr;gap:16px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:14px;
  transition:border-color var(--ease),box-shadow var(--ease),transform var(--ease);
  box-shadow:var(--shadow-1);
}
.mini-card:hover{border-color:var(--primary);transform:translateY(-3px);box-shadow:var(--shadow-2);}
.mini-thumb{position:relative;border-radius:var(--radius);overflow:hidden;aspect-ratio:9/16;}
.mini-thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease);}
.mini-card:hover .mini-thumb img{transform:scale(1.04);}
.mini-body{display:flex;flex-direction:column;gap:8px;min-width:0;}
.mini-body h3{
  font-size:16.5px;font-weight:600;line-height:1.45;color:var(--text-1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.mini-body p{
  font-size:13.5px;color:var(--text-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.mini-meta{margin-top:auto;font-size:12px;color:var(--text-3);letter-spacing:.02em;font-variant-numeric:tabular-nums;}

/* ---------- 时间线 ---------- */
.timeline{position:relative;padding-left:26px;}
.timeline::before{
  content:"";position:absolute;left:5px;top:8px;bottom:8px;width:1px;
  background:linear-gradient(180deg,rgba(198,255,74,.5),rgba(123,91,255,.35),rgba(255,255,255,.06));
}
.tl-item{position:relative;padding-bottom:28px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:-26px;top:8px;width:11px;height:11px;border-radius:50%;
  background:var(--bg-0);border:2px solid var(--primary);box-shadow:0 0 10px rgba(198,255,74,.5);
}
.tl-item.is-future::before{border-color:var(--text-3);box-shadow:none;}
.tl-date{
  font-size:12.5px;font-weight:700;letter-spacing:.06em;
  color:var(--primary);font-variant-numeric:tabular-nums;margin-bottom:10px;display:block;
}
.tl-item.is-future .tl-date{color:var(--text-3);}
.tl-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:20px 22px;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.tl-card:hover{border-color:rgba(198,255,74,.45);box-shadow:var(--shadow-1);}
.tl-card h3{font-size:17px;font-weight:600;line-height:1.45;margin-bottom:8px;}
.tl-card p{font-size:14px;color:var(--text-2);line-height:1.8;}
.tl-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px;}

/* ---------- 玩法要点数字块 ---------- */
.point-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.point-card{
  position:relative;
  background:linear-gradient(180deg,var(--surface) 0%,var(--bg-1) 100%);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:28px 24px 26px;
  overflow:hidden;
  transition:border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.point-card:hover{border-color:var(--primary);transform:translateY(-4px);box-shadow:var(--shadow-2);}
.point-num{
  font-size:46px;font-weight:800;line-height:1;letter-spacing:-.03em;
  color:transparent;-webkit-text-stroke:1.5px rgba(198,255,74,.55);
  font-variant-numeric:tabular-nums;margin-bottom:16px;
}
.point-card h3{font-size:18px;font-weight:600;line-height:1.4;margin-bottom:10px;}
.point-card p{font-size:14.5px;color:var(--text-2);line-height:1.8;}
.point-card::after{
  content:"";position:absolute;right:-30px;top:-30px;width:110px;height:110px;border-radius:50%;
  background:radial-gradient(circle,rgba(123,91,255,.22),transparent 70%);
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 4px;text-align:left;
  font-size:16.5px;font-weight:600;color:var(--text-1);line-height:1.5;
  transition:color var(--ease);
}
.faq-q:hover{color:var(--primary);}
.faq-icon{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--primary);font-size:13px;
  transition:transform var(--ease),background var(--ease),border-color var(--ease);
}
.faq-q:hover .faq-icon{border-color:rgba(198,255,74,.5);background:rgba(198,255,74,.1);}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--primary);color:#10130A;border-color:var(--primary);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 320ms cubic-bezier(.4,0,.2,1);}
.faq-item.is-open .faq-a{max-height:420px;}
.faq-a p{padding:0 4px 22px;font-size:15px;color:var(--text-2);line-height:1.85;max-width:44em;}

/* ---------- CTA 横幅 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border:1px solid rgba(198,255,74,.35);
  border-radius:var(--radius-lg);
  background-image:linear-gradient(90deg,rgba(14,11,20,.94) 0%,rgba(22,18,31,.86) 60%,rgba(14,11,20,.72) 100%),
                   url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
  padding:40px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  box-shadow:var(--shadow-2);
}
.cta-band h2{font-size:24px;font-weight:800;line-height:1.35;letter-spacing:-.01em;max-width:18em;}
.cta-band .cta-sub{margin-top:10px;font-size:14.5px;color:var(--text-2);max-width:34em;}

/* ---------- 交叉入口 ---------- */
.cross-bar{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  border:1px dashed rgba(255,255,255,.14);
  border-radius:var(--radius-card);
  padding:22px 26px;
  background:var(--bg-1);
}
.cross-bar h3{font-size:16px;font-weight:700;letter-spacing:.01em;}
.cross-links{display:flex;gap:10px;flex-wrap:wrap;}
.cross-link{
  font-size:13.5px;font-weight:600;padding:9px 18px;border-radius:var(--radius-pill);
  border:1px solid var(--line);color:var(--text-2);
  transition:all var(--ease);
}
.cross-link:hover{border-color:var(--primary);color:var(--primary);background:rgba(198,255,74,.08);transform:translateY(-2px);}
.cross-link:active{transform:translateY(0) scale(.98);}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--bg-0);
  border-top:1px solid var(--line);
  padding:56px 0 24px;
  margin-top:24px;
}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.3fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand strong{font-size:16px;font-weight:800;letter-spacing:-.01em;}
.footer-about{font-size:14px;color:var(--text-3);line-height:1.85;max-width:34em;}
.footer-col h4{font-size:14px;font-weight:700;letter-spacing:.04em;color:var(--text-1);margin-bottom:16px;}
.footer-links{display:grid;gap:10px;}
.footer-links a{font-size:14px;color:var(--text-3);}
.footer-links a:hover{color:var(--primary);}
.footer-note{font-size:13.5px;color:var(--text-3);line-height:1.85;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:40px;padding-top:22px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.footer-tags{display:flex;gap:16px;flex-wrap:wrap;letter-spacing:.02em;}
.footer-tags span::before{content:"·";margin-right:8px;color:var(--primary);}

/* ---------- 移动端底部固定条 ---------- */
.mobile-cta{
  display:none;
  position:fixed;left:0;right:0;bottom:0;z-index:300;
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  background:rgba(14,11,20,.94);
  border-top:1px solid var(--line);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  align-items:center;gap:12px;
}
.mobile-cta .btn{flex:1;}
.mobile-cta .mc-text{font-size:12.5px;color:var(--text-3);line-height:1.5;max-width:9em;}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:20px;bottom:28px;z-index:250;
  width:46px;height:46px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--primary);color:#10130A;
  box-shadow:0 10px 26px rgba(198,255,74,.25);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:all var(--ease);
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--primary-hover);transform:translateY(-3px);}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .layout-2col{grid-template-columns:1fr;}
  .point-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:60px 0;}
}
@media (max-width:900px){
  .search-box{display:none;}
  .nav-toggle{display:inline-flex;}
  .brand-inner{flex-wrap:wrap;}
  .site-header.is-search-open .search-box{
    display:flex;width:100%;max-width:none;order:5;margin-top:12px;
  }
  .hot-tags{display:none;}
}
@media (max-width:768px){
  .grid-container{padding-left:20px;padding-right:20px;}
  .section{padding:52px 0;}
  .section-tight{padding:40px 0;}
  .intro-paper{padding:26px 22px;border-radius:16px;}
  .intro-paper-wrap{margin-top:-32px;}
  .page-banner{min-height:250px;}
  .banner-inner{padding:56px 0 34px;}
  .point-grid{grid-template-columns:1fr;}
  .cta-band{padding:30px 24px;}
  .cta-band h2{font-size:20px;}
  .footer-grid{grid-template-columns:1fr;}
  .mini-card{grid-template-columns:92px 1fr;}
  .mobile-cta{display:flex;}
  body{padding-bottom:78px;}
  .to-top{bottom:92px;right:16px;}
}
@media (max-width:520px){
  .brand-text strong{font-size:14.5px;}
  .brand-text em{display:none;}
  .banner-meta{gap:14px;font-size:12px;}
  .feature-body{padding:20px 18px 22px;}
  .feature-body h3{font-size:18px;}
  .tl-card{padding:16px 16px;}
  .faq-q{font-size:15px;padding:16px 2px;}
  .cross-bar{padding:18px;}
  .footer-bottom{font-size:12.5px;}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}