/* roulang page: index */
:root{
  --bg:#05070F;
  --panel:#0B1020;
  --raised:#111731;
  --primary:#23E0C8;
  --violet:#7A5CFF;
  --coral:#FF5C7A;
  --gold:#FFB020;
  --text:#EAF2FF;
  --muted:#9BA9C7;
  --dim:#66738F;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --r-xl:20px;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:6px;
  --pill:999px;
  --shadow:0 10px 30px rgba(0,0,0,.45);
  --shadow-soft:0 8px 24px rgba(0,0,0,.32);
  --glow:0 0 0 1px rgba(35,224,200,.28),0 10px 34px rgba(35,224,200,.16);
  --s1:4px;--s2:8px;--s3:12px;--s4:16px;--s5:24px;--s6:32px;--s7:48px;--s8:64px;--s9:96px;
  --max:1280px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:15px;
  line-height:1.75;
  letter-spacing:.01em;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);
  background-size:32px 32px;
  pointer-events:none;
  z-index:0;
}
body::after{
  content:"";
  position:fixed;
  top:-320px;
  left:50%;
  width:900px;
  height:620px;
  transform:translateX(-50%);
  background:radial-gradient(closest-side,rgba(35,224,200,.16),rgba(122,92,255,.08),transparent 72%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
::selection{background:rgba(35,224,200,.3);color:#03110F}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 32px;position:relative;z-index:1}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--pill);
  border:1px solid transparent;cursor:pointer;
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform .22s ease,box-shadow .22s ease,background-color .22s ease,border-color .22s ease,color .22s ease;
}
.btn-primary{background:var(--primary);color:#03130F;box-shadow:var(--glow)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 0 0 1px rgba(35,224,200,.45),0 16px 40px rgba(35,224,200,.28)}
.btn-primary:active{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(35,224,200,.35),0 6px 18px rgba(35,224,200,.18)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:var(--line-strong);color:var(--text)}
.btn-ghost:hover{transform:translateY(-3px);background:rgba(35,224,200,.08);border-color:rgba(35,224,200,.5)}
.btn-ghost:active{transform:translateY(-1px)}
.btn-sm{height:38px;padding:0 16px;font-size:13.5px}
.btn:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.btn:disabled,.btn[disabled]{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-size:14px;font-weight:600;transition:transform .2s ease,color .2s ease}
.text-link::after{content:"";width:6px;height:6px;border-right:2px solid currentColor;border-top:2px solid currentColor;transform:rotate(45deg)}
.text-link:hover{transform:translateX(2px)}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 11px;border-radius:var(--r-sm);
  background:rgba(122,92,255,.14);border:1px solid rgba(122,92,255,.34);
  color:#C7BBFF;font-size:12.5px;line-height:1.7;
}
.chip-primary{background:rgba(35,224,200,.14);border-color:rgba(35,224,200,.36);color:#8FF3E6}
.chip-coral{background:rgba(255,92,122,.14);border-color:rgba(255,92,122,.36);color:#FFB3C1}

/* ---------- header ---------- */
.site-header{position:relative;z-index:40}
.brand-bar{background:rgba(5,7,15,.86);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.brand-inner{display:flex;align-items:center;gap:var(--s5);height:74px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:38px;height:38px;border-radius:11px;flex-shrink:0;
  background:linear-gradient(135deg,var(--primary),var(--violet));
  display:grid;place-items:center;color:#03130F;font-weight:800;font-size:17px;
  box-shadow:0 6px 18px rgba(35,224,200,.25);
}
.logo-text{font-size:17.5px;font-weight:800;letter-spacing:.01em;white-space:nowrap}
.logo-text small{display:block;font-size:11.5px;font-weight:400;color:var(--dim);letter-spacing:.14em;line-height:1.5}
.brand-tools{margin-left:auto;display:flex;align-items:center;gap:var(--s4)}
.search{
  display:flex;align-items:center;gap:8px;
  height:44px;padding:0 8px 0 16px;min-width:280px;
  background:rgba(255,255,255,.05);border:1px solid var(--line-strong);
  border-radius:var(--pill);
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.search:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(35,224,200,.16);background:rgba(255,255,255,.07)}
.search svg{flex-shrink:0;color:var(--dim)}
.search input{flex:1;min-width:0;background:transparent;border:0;outline:none;font-size:14px}
.search input::placeholder{color:var(--dim)}
.search button{height:32px;padding:0 14px;border-radius:var(--pill);border:0;background:rgba(35,224,200,.16);color:#8FF3E6;font-size:13px;font-weight:600;cursor:pointer;transition:background-color .2s ease}
.search button:hover{background:rgba(35,224,200,.3)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  background:rgba(255,255,255,.05);border:1px solid var(--line-strong);
  cursor:pointer;position:relative;
}
.nav-toggle span{position:absolute;left:12px;right:12px;height:2px;background:var(--text);border-radius:2px;transition:transform .25s ease,opacity .25s ease}
.nav-toggle span:nth-child(1){top:15px}
.nav-toggle span:nth-child(2){top:21px}
.nav-toggle span:nth-child(3){top:27px}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

.channel-bar{
  position:sticky;top:0;z-index:45;
  background:rgba(8,11,22,.92);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background-color .25s ease;
}
.channel-bar.is-stuck{box-shadow:0 12px 30px rgba(0,0,0,.5);background:rgba(6,8,18,.97)}
.channel-scroll{display:flex;align-items:center;gap:var(--s2);height:52px;overflow-x:auto;scrollbar-width:none}
.channel-scroll::-webkit-scrollbar{display:none}
.channel-link{
  position:relative;padding:0 14px;height:52px;display:inline-flex;align-items:center;
  color:var(--muted);font-size:14.5px;font-weight:500;white-space:nowrap;
  transition:color .2s ease;
}
.channel-link:hover{color:var(--text)}
.channel-link.is-active{color:var(--primary);font-weight:600}
.channel-link.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;background:var(--primary);border-radius:2px}
.channel-note{margin-left:auto;color:var(--dim);font-size:12.5px;white-space:nowrap;padding-left:var(--s4)}

.drawer{
  position:fixed;inset:0;z-index:80;background:rgba(5,7,15,.97);
  backdrop-filter:blur(10px);padding:24px 20px 40px;
  display:flex;flex-direction:column;gap:8px;
  transform:translateY(-12px);opacity:0;visibility:hidden;
  transition:opacity .25s ease,transform .25s ease,visibility .25s;
}
.drawer.is-open{opacity:1;visibility:visible;transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.drawer-close{width:42px;height:42px;border-radius:12px;background:rgba(255,255,255,.06);border:1px solid var(--line-strong);cursor:pointer;font-size:18px;line-height:1}
.drawer a.drawer-link{padding:14px 4px;font-size:16.5px;border-bottom:1px solid var(--line);color:var(--muted)}
.drawer a.drawer-link.is-active{color:var(--primary);font-weight:600}
.drawer .btn{margin-top:20px}

/* ---------- hero ---------- */
.hero{position:relative;min-height:78vh;display:flex;align-items:flex-end;overflow:hidden;isolation:isolate}
.hero-slides{position:absolute;inset:0;z-index:-2}
.hero-slide{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:0;transform:scale(1.06);transition:opacity 1.1s ease,transform 7s linear;
}
.hero-slide.is-active{opacity:1;transform:scale(1)}
.hero-shade{position:absolute;inset:0;z-index:-1;background:
  linear-gradient(90deg,rgba(5,7,15,.96) 0%,rgba(5,7,15,.78) 42%,rgba(5,7,15,.34) 72%,rgba(5,7,15,.7) 100%),
  linear-gradient(180deg,rgba(5,7,15,.6) 0%,rgba(5,7,15,.05) 34%,rgba(5,7,15,.94) 100%);
}
.hero-inner{padding-top:120px;padding-bottom:96px;max-width:820px}
.hero-eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:13px;letter-spacing:.22em;color:var(--primary);margin-bottom:var(--s4)}
.hero-eyebrow::before{content:"";width:26px;height:1px;background:var(--primary)}
.hero h1{font-size:clamp(28px,4.4vw,48px);line-height:1.22;font-weight:800;letter-spacing:-.01em}
.hero-sub{margin-top:var(--s5);font-size:16.5px;line-height:1.85;color:var(--muted);max-width:620px}
.hero-actions{margin-top:var(--s6);display:flex;flex-wrap:wrap;gap:var(--s4)}
.hero-facts{margin-top:var(--s6);display:flex;flex-wrap:wrap;gap:var(--s5);color:var(--dim);font-size:13.5px}
.hero-facts span{display:inline-flex;align-items:center;gap:8px}
.hero-facts span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);opacity:.7}
.hero-dots{
  position:absolute;right:32px;bottom:36px;display:flex;gap:8px;align-items:center;
  padding:10px 14px;border-radius:var(--pill);
  background:rgba(11,16,32,.55);border:1px solid var(--line);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
}
.hero-dot{width:26px;height:4px;border-radius:2px;background:rgba(255,255,255,.22);border:0;cursor:pointer;padding:0;transition:background-color .25s ease,width .25s ease}
.hero-dot.is-active{background:var(--primary);width:38px}
.hero-dot:hover{background:rgba(255,255,255,.45)}
.hero-dot.is-active:hover{background:var(--primary)}

/* ---------- sections ---------- */
.section{padding:var(--s8) 0}
.section-tight{padding:var(--s7) 0}
.section-head{display:flex;align-items:flex-end;gap:var(--s5);justify-content:space-between;margin-bottom:var(--s6);flex-wrap:wrap}
.section-head h2{font-size:clamp(22px,2.6vw,32px);line-height:1.3;font-weight:700}
.section-head h2 em{font-style:normal;color:var(--primary)}
.section-sub{margin-top:8px;color:var(--muted);font-size:14.5px;max-width:640px}
.divider{height:1px;background:var(--line);margin:var(--s7) 0}

/* ---------- rail ---------- */
.rail{position:relative}
.rail-track{
  display:flex;gap:var(--s4);overflow-x:auto;padding:4px 4px 20px;
  scroll-snap-type:x mandatory;scrollbar-width:none;
}
.rail-track::-webkit-scrollbar{display:none}
.rail-card{flex:0 0 216px;scroll-snap-align:start}
.card-media{
  position:relative;border-radius:var(--r-md);overflow:hidden;
  background:linear-gradient(135deg,#101733,#0A0E1E);
  aspect-ratio:2/3;border:1px solid var(--line);
  box-shadow:var(--shadow-soft);
}
.card-media::after{content:"";position:absolute;inset:0;border-radius:inherit;box-shadow:inset 0 1px 0 rgba(255,255,255,.06);pointer-events:none}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.rail-card:hover .card-media img{transform:scale(1.04)}
.rail-card:hover .card-media{border-color:rgba(35,224,200,.4)}
.rail-card .card-enter{
  position:absolute;left:50%;bottom:14px;transform:translate(-50%,8px);
  opacity:0;height:34px;padding:0 16px;border-radius:var(--pill);
  background:rgba(35,224,200,.92);color:#03130F;font-size:13px;font-weight:700;
  display:inline-flex;align-items:center;border:0;cursor:pointer;
  transition:opacity .25s ease,transform .25s ease;
}
.rail-card:hover .card-enter,.rail-card:focus-within .card-enter{opacity:1;transform:translate(-50%,0)}
.rail-card .rank-badge{
  position:absolute;left:10px;top:10px;z-index:2;
  padding:2px 9px;border-radius:var(--r-sm);
  background:rgba(255,176,32,.92);color:#2A1A00;font-size:12px;font-weight:700;
}
.rail-title{margin-top:12px;font-size:15px;font-weight:600;line-height:1.5;transition:color .2s ease}
.rail-card:hover .rail-title{color:var(--primary)}
.rail-meta{margin-top:4px;font-size:12.5px;color:var(--dim)}

/* ---------- bento ---------- */
.bento{display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:auto auto;gap:var(--s4)}
.bento-item{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  background:var(--panel);border:1px solid var(--line);
  min-height:210px;display:flex;align-items:flex-end;
  box-shadow:var(--shadow-soft);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.bento-item:hover{transform:translateY(-4px);border-color:rgba(35,224,200,.4);box-shadow:var(--shadow)}
.bento-item img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.5;transition:transform .5s ease,opacity .3s ease}
.bento-item:hover img{transform:scale(1.05);opacity:.62}
.bento-body{position:relative;z-index:2;padding:var(--s5);width:100%;background:linear-gradient(180deg,transparent,rgba(5,7,15,.92) 62%)}
.bento-item--large{grid-column:span 2;grid-row:span 2;min-height:460px}
.bento-item--wide{grid-column:span 3;min-height:170px}
.bento-item--large .bento-body{padding:var(--s6)}
.bento-body h3{font-size:18px;line-height:1.45;font-weight:700;margin-top:10px}
.bento-item--large .bento-body h3{font-size:24px}
.bento-body p{margin-top:8px;color:var(--muted);font-size:14px;line-height:1.7}
.bento-corner{
  position:absolute;left:0;top:0;z-index:3;
  padding:6px 14px;border-radius:0 var(--r-md) 0 var(--r-md);
  background:linear-gradient(120deg,var(--primary),var(--violet));
  color:#03130F;font-size:12.5px;font-weight:700;
}

/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--s5)}
.news-card{
  display:flex;flex-direction:column;height:100%;
  background:rgba(11,16,32,.82);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:var(--s5);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.news-card:hover{transform:translateY(-4px);border-color:rgba(35,224,200,.38);box-shadow:var(--glow)}
.news-card h3{margin-top:14px;font-size:17px;line-height:1.55;font-weight:700;transition:color .2s ease}
.news-card:hover h3{color:var(--primary)}
.news-summary{margin-top:12px;color:var(--muted);font-size:14px;line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{margin-top:auto;padding-top:var(--s5);display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:12.5px;color:var(--dim)}
.empty-state{
  grid-column:1/-1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  padding:var(--s7) var(--s5);border:1px dashed var(--line-strong);border-radius:var(--r-lg);
  background:rgba(11,16,32,.5);color:var(--muted);text-align:center;
}
.empty-state svg{color:var(--dim)}
.empty-state p{font-size:14.5px}

/* ---------- playlists ---------- */
.playlist-rail .rail-card{flex:0 0 236px}

/* ---------- stats ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--s6)}
.stat{padding-left:var(--s4);border-left:1px solid var(--line)}
.stat strong{display:block;font-size:clamp(28px,3.4vw,40px);line-height:1.1;font-weight:800;color:var(--text);letter-spacing:-.02em}
.stat strong span{font-size:.55em;color:var(--primary);margin-left:4px}
.stat p{margin-top:10px;color:var(--muted);font-size:13.5px;line-height:1.7}

/* ---------- faq ---------- */
.faq{display:grid;grid-template-columns:1fr;gap:12px;max-width:900px}
.faq-item{
  background:rgba(11,16,32,.72);border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  transition:border-color .25s ease;
}
.faq-item.is-open{border-color:rgba(35,224,200,.4)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;background:transparent;border:0;cursor:pointer;
  text-align:left;font-size:15.5px;font-weight:600;line-height:1.6;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--primary)}
.faq-icon{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line-strong);position:relative;
  transition:transform .3s ease,background-color .3s ease,border-color .3s ease;
}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--primary);border-radius:2px}
.faq-icon::before{left:7px;right:7px;top:12px;height:2px}
.faq-icon::after{top:7px;bottom:7px;left:12px;width:2px;transition:opacity .25s ease}
.faq-item.is-open .faq-icon{transform:rotate(180deg);background:rgba(35,224,200,.14);border-color:rgba(35,224,200,.5)}
.faq-item.is-open .faq-icon::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a p{padding:0 22px 22px;color:var(--muted);font-size:14.5px;line-height:1.85}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  padding:var(--s8) var(--s7);
  background:linear-gradient(120deg,rgba(35,224,200,.2),rgba(122,92,255,.22) 62%,rgba(255,92,122,.12));
  border:1px solid var(--line-strong);
  display:flex;align-items:center;justify-content:space-between;gap:var(--s6);flex-wrap:wrap;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:28px 28px;opacity:.7;pointer-events:none;
}
.cta-copy{position:relative;z-index:2;max-width:640px}
.cta-copy h2{font-size:clamp(22px,2.6vw,30px);line-height:1.32;font-weight:700}
.cta-copy p{margin-top:12px;color:#C6D2EA;font-size:14.5px;line-height:1.8}
.cta-band .btn{position:relative;z-index:2}

/* ---------- footer ---------- */
.site-footer{margin-top:var(--s9);border-top:1px solid var(--line);background:rgba(6,9,18,.86);position:relative;z-index:1}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:var(--s6);padding:var(--s8) 0 var(--s7)}
.footer-brand .logo-text{font-size:17px}
.footer-brand p{margin-top:var(--s4);color:var(--muted);font-size:13.5px;line-height:1.85;max-width:340px}
.footer-col h4{font-size:14px;font-weight:700;margin-bottom:var(--s4);color:var(--text)}
.footer-col li+li{margin-top:11px}
.footer-col a{color:var(--muted);font-size:13.5px;transition:color .2s ease,transform .2s ease;display:inline-block}
.footer-col a:hover{color:var(--primary);transform:translateX(2px)}
.footer-bottom{border-top:1px solid var(--line);padding:22px 0 30px;display:flex;align-items:center;justify-content:space-between;gap:var(--s4);flex-wrap:wrap;color:var(--dim);font-size:12.5px}
.footer-bottom a{color:var(--dim)}
.footer-bottom a:hover{color:var(--primary)}

/* ---------- responsive ---------- */
@media (max-width:1200px){
  .rail-card{flex:0 0 200px}
  .playlist-rail .rail-card{flex:0 0 216px}
}
@media (max-width:1024px){
  .container{padding:0 24px}
  .search{min-width:200px}
  .hero{min-height:66vh}
  .hero-inner{padding-top:96px;padding-bottom:80px}
  .bento{grid-template-columns:repeat(2,1fr)}
  .bento-item--large{grid-column:span 2;grid-row:span 1;min-height:340px}
  .bento-item--wide{grid-column:span 2}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr);gap:var(--s5)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:var(--s7)}
  .channel-note{display:none}
}
@media (max-width:834px){
  .search{display:none}
  .nav-toggle{display:block}
  .brand-inner{height:66px;gap:var(--s4)}
  .brand-tools .btn-primary{display:none}
  .hero{min-height:58vh}
  .hero-inner{padding-top:84px;padding-bottom:72px}
  .hero-dots{right:24px;bottom:24px}
  .section{padding:var(--s7) 0}
  .cta-band{padding:var(--s7) var(--s5)}
}
@media (max-width:768px){
  .bento{grid-template-columns:1fr}
  .bento-item--large,.bento-item--wide{grid-column:span 1;min-height:250px}
  .news-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr;gap:var(--s5)}
  .stat strong{font-size:30px}
  .hero-facts{gap:var(--s4)}
}
@media (max-width:520px){
  body{font-size:14.5px}
  .container{padding:0 16px}
  .logo-text{font-size:15.5px}
  .logo-text small{font-size:10.5px;letter-spacing:.1em}
  .hero h1{font-size:26px}
  .hero-sub{font-size:15px}
  .hero-actions .btn{width:100%}
  .rail-card{flex:0 0 172px}
  .playlist-rail .rail-card{flex:0 0 186px}
  .stats{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:var(--s6);padding:var(--s7) 0 var(--s6)}
  .faq-q{padding:16px 16px;font-size:14.5px}
  .faq-a p{padding:0 16px 18px}
  .cta-band{padding:var(--s6) var(--s5)}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
}

/* roulang page: category1 */
:root{
  --bg:#05070F;
  --panel:#0B1020;
  --raise:#111731;
  --primary:#23E0C8;
  --primary-soft:rgba(35,224,200,.14);
  --primary-line:rgba(35,224,200,.32);
  --violet:#7A5CFF;
  --violet-soft:rgba(122,92,255,.16);
  --coral:#FF5C7A;
  --gold:#FFB020;
  --text:#EAF2FF;
  --muted:#9BA9C7;
  --faint:#66738F;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.18);
  --r-xl:20px;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:8px;
  --pill:999px;
  --shadow:0 10px 30px rgba(0,0,0,.45);
  --glow:0 0 0 1px rgba(35,224,200,.28), 0 10px 34px rgba(35,224,200,.16);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);
  background-size:32px 32px;
}
body::after{
  content:"";
  position:fixed;
  left:50%;
  top:-280px;
  width:min(960px,120vw);
  height:560px;
  transform:translateX(-50%);
  z-index:0;
  pointer-events:none;
  background:radial-gradient(closest-side,rgba(35,224,200,.16),transparent 72%);
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1{font-size:clamp(28px,4.4vw,48px);line-height:1.22;font-weight:800;letter-spacing:-.01em}
h2{font-size:clamp(22px,2.6vw,32px);line-height:1.3;font-weight:700}
h3{font-size:19px;line-height:1.45;font-weight:700}
p{line-height:1.75}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
::selection{background:rgba(35,224,200,.28)}

.container{width:100%;max-width:1280px;margin:0 auto;padding:0 32px}
.site-header,.site-main,.site-footer{position:relative;z-index:1}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 22px;
  border-radius:var(--pill);
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  border:1px solid transparent;
  transition:transform .22s ease,box-shadow .22s ease,background-color .22s ease,border-color .22s ease,color .22s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),#2ee9c0);
  color:#04211E;
  box-shadow:var(--glow);
}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 0 0 1px rgba(35,224,200,.4),0 16px 40px rgba(35,224,200,.24)}
.btn-primary:active{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(35,224,200,.3),0 6px 16px rgba(35,224,200,.18)}
.btn-ghost{
  background:rgba(255,255,255,.03);
  border-color:var(--line-strong);
  color:var(--text);
}
.btn-ghost:hover{background:rgba(35,224,200,.08);border-color:var(--primary-line);transform:translateY(-3px)}
.btn-ghost:active{transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--primary);
  transition:transform .22s ease,color .22s ease;
}
.link-more::after{content:"";width:6px;height:6px;border-top:2px solid currentColor;border-right:2px solid currentColor;transform:rotate(45deg)}
.link-more:hover{transform:translateX(2px)}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  background:rgba(8,11,24,.78);
  border-bottom:1px solid var(--line);
  transition:background-color .3s ease,box-shadow .3s ease;
}
.site-header.is-scrolled{background:rgba(6,9,20,.94);box-shadow:0 10px 30px rgba(0,0,0,.5)}
.topbar{padding:14px 0}
.topbar-inner{display:flex;align-items:center;gap:24px}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:36px;height:36px;border-radius:11px;
  display:grid;place-items:center;
  font-size:17px;font-weight:800;color:#04211E;
  background:linear-gradient(135deg,var(--primary),var(--violet));
  box-shadow:0 6px 18px rgba(35,224,200,.28);
}
.logo-text{font-size:17px;font-weight:800;letter-spacing:.01em;white-space:nowrap}
.topbar-tools{margin-left:auto;display:flex;align-items:center;gap:12px}
.search{
  display:flex;align-items:center;gap:8px;
  height:44px;width:280px;padding:0 6px 0 16px;
  border-radius:var(--pill);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  backdrop-filter:blur(10px);
  transition:border-color .22s ease,box-shadow .22s ease;
}
.search:focus-within{border-color:var(--primary-line);box-shadow:0 0 0 1px rgba(35,224,200,.28),0 0 22px rgba(35,224,200,.16)}
.search input{
  flex:1;min-width:0;height:100%;border:0;background:none;font-size:14px;color:var(--text);
}
.search input::placeholder{color:var(--faint)}
.search input:focus{outline:none}
.search-btn{
  width:34px;height:34px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--primary-soft);color:var(--primary);
  transition:background-color .22s ease,color .22s ease;
}
.search-btn:hover{background:var(--primary);color:#04211E}
.hamburger{
  display:none;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.hamburger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform .25s ease,opacity .25s ease}
body.nav-open .hamburger span:nth-child(1){transform:translateY(7px) rotate(45deg)}
body.nav-open .hamburger span:nth-child(2){opacity:0}
body.nav-open .hamburger span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- 频道行 ---------- */
.channel-bar{
  border-top:1px solid var(--line);
  background:rgba(5,8,18,.72);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.channel-scroll{
  display:flex;align-items:center;gap:26px;
  height:52px;overflow-x:auto;scrollbar-width:none;
}
.channel-scroll::-webkit-scrollbar{display:none}
.channel-link{
  position:relative;
  font-size:15px;font-weight:600;color:var(--muted);
  white-space:nowrap;padding:14px 0;
  transition:color .22s ease;
}
.channel-link::after{
  content:"";position:absolute;left:0;right:0;bottom:8px;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.channel-link:hover{color:var(--text)}
.channel-link.is-active{color:var(--primary)}
.channel-link.is-active::after{transform:scaleX(1)}
.channel-note{margin-left:auto;font-size:13px;color:var(--faint);white-space:nowrap}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;inset:0;z-index:80;
  background:rgba(5,7,15,.97);
  backdrop-filter:blur(14px);
  padding:88px 24px 32px;
  display:flex;flex-direction:column;gap:8px;
  transform:translateY(-8px);opacity:0;visibility:hidden;
  transition:opacity .26s ease,transform .26s ease,visibility .26s;
}
body.nav-open .drawer{opacity:1;visibility:visible;transform:translateY(0)}
.drawer a.drawer-link{
  padding:16px 18px;border-radius:14px;font-size:17px;font-weight:600;
  border:1px solid var(--line);background:rgba(255,255,255,.03);
}
.drawer a.drawer-link.is-active{color:var(--primary);border-color:var(--primary-line)}
.drawer .btn{margin-top:16px;height:50px}
.drawer-close{
  position:absolute;top:22px;right:24px;
  width:42px;height:42px;border-radius:50%;
  border:1px solid var(--line);color:var(--muted);
  display:grid;place-items:center;font-size:20px;
}

/* ---------- 面包屑 ---------- */
.crumb{padding:26px 0 0}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--faint)}
.crumb li{display:flex;align-items:center;gap:10px}
.crumb li+li::before{content:"";width:5px;height:5px;border-top:1.5px solid var(--faint);border-right:1.5px solid var(--faint);transform:rotate(45deg);display:block}
.crumb a:hover{color:var(--primary)}

/* ---------- 内页横幅 ---------- */
.page-banner{padding:28px 0 48px}
.banner-inner{
  display:grid;grid-template-columns:1fr 40%;
  gap:44px;align-items:center;
  border-radius:var(--r-xl);
  border:1px solid var(--line);
  background:
    radial-gradient(120% 140% at 0% 0%,rgba(35,224,200,.14),transparent 55%),
    linear-gradient(160deg,var(--raise),var(--panel));
  padding:40px;
  position:relative;
  overflow:hidden;
  box-shadow:var(--shadow);
}
.banner-inner::before{
  content:"";position:absolute;inset:0 0 auto;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);
}
.banner-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--primary);
  padding:6px 14px;border-radius:var(--pill);
  border:1px solid var(--primary-line);background:var(--primary-soft);
  margin-bottom:18px;
}
.banner-eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary)}
.banner-text h1{margin-bottom:16px}
.banner-text h1 em{font-style:normal;color:var(--primary)}
.banner-sub{font-size:16px;color:var(--muted);max-width:52ch;margin-bottom:26px}
.banner-actions{display:flex;flex-wrap:wrap;gap:14px}
.banner-media{position:relative;border-radius:var(--r-lg);overflow:hidden;aspect-ratio:4/3;border:1px solid var(--line);background:linear-gradient(140deg,#0d1428,#131b3a)}
.banner-media img{width:100%;height:100%;object-fit:cover}
.banner-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(5,7,15,.72));
}
.banner-media-tag{
  position:absolute;left:16px;bottom:14px;z-index:2;
  font-size:13px;font-weight:600;color:var(--text);
  padding:5px 12px;border-radius:var(--r-sm);
  background:rgba(5,7,15,.72);border:1px solid var(--line);
}

/* ---------- 筛选条（玻璃） ---------- */
.filter-bar{
  position:sticky;top:110px;z-index:20;
  margin-bottom:36px;
  padding:12px;
  border-radius:var(--pill);
  border:1px solid var(--line);
  background:rgba(11,16,32,.62);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  display:flex;align-items:center;gap:10px;
  overflow-x:auto;scrollbar-width:none;
}
.filter-bar::-webkit-scrollbar{display:none}
.chip{
  flex-shrink:0;
  padding:8px 18px;border-radius:var(--pill);
  font-size:14px;font-weight:600;color:var(--muted);
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  transition:color .2s ease,background-color .2s ease,border-color .2s ease,transform .2s ease;
}
.chip:hover{color:var(--text);border-color:var(--line-strong);transform:translateY(-2px)}
.chip.is-active{background:var(--primary);color:#04211E;border-color:var(--primary)}
.chip:active{transform:translateY(0)}

/* ---------- 板块 ---------- */
.section{padding:56px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.section-head .lead{font-size:15px;color:var(--muted);margin-top:10px;max-width:64ch}
.section-title-line{position:relative;padding-bottom:14px}
.section-title-line::after{content:"";position:absolute;left:0;bottom:0;width:46px;height:3px;border-radius:3px;background:linear-gradient(90deg,var(--primary),var(--violet))}
.divider{height:1px;background:var(--line);margin:0}

/* ---------- 卡片网格 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  position:relative;
  display:flex;flex-direction:column;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:var(--panel);
  overflow:hidden;
  transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease;
}
.card::before{
  content:"";position:absolute;inset:0 0 auto;height:1px;z-index:3;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.26),transparent);
}
.card:hover{transform:translateY(-4px);border-color:var(--primary-line);box-shadow:var(--shadow)}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(130deg,#0d1428,#151d3e)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .55s ease}
.card:hover .card-media img{transform:scale(1.05)}
.card-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(5,7,15,.6))}
.card-chip{
  position:absolute;left:14px;top:14px;z-index:2;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  padding:5px 11px;border-radius:var(--r-sm);
  background:rgba(5,7,15,.74);
  border:1px solid var(--line-strong);
  color:var(--text);
}
.card-chip.is-hot{color:#2A0A12;background:var(--coral);border-color:transparent}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:18px}
.card-body h3 a:hover{color:var(--primary)}
.card-desc{
  font-size:14px;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--faint);font-variant-numeric:tabular-nums}
.card-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--faint)}
.card-enter{
  position:absolute;right:14px;bottom:14px;z-index:3;
  font-size:13px;font-weight:600;color:var(--primary);
  padding:6px 13px;border-radius:var(--pill);
  background:rgba(5,7,15,.82);border:1px solid var(--primary-line);
  opacity:0;transform:translateY(6px);
  transition:opacity .26s ease,transform .26s ease;
}
.card:hover .card-enter{opacity:1;transform:translateY(0)}

/* ---------- 步骤流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;counter-reset:step}
.step{
  position:relative;
  padding:26px 22px;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(17,23,49,.9),rgba(11,16,32,.9));
  transition:transform .26s ease,border-color .26s ease;
}
.step:hover{transform:translateY(-4px);border-color:var(--primary-line)}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:12px;
  font-weight:800;font-size:15px;
  font-variant-numeric:tabular-nums;
  color:var(--primary);background:var(--primary-soft);
  border:1px solid var(--primary-line);
  margin-bottom:16px;
}
.step h3{font-size:17px;margin-bottom:8px}
.step p{font-size:14px;color:var(--muted)}

/* ---------- 数据条 ---------- */
.metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0}
.metric{padding:8px 28px;border-left:1px solid var(--line)}
.metric:first-child{border-left:0;padding-left:0}
.metric-num{
  font-size:clamp(28px,3.4vw,40px);font-weight:800;line-height:1.1;
  font-variant-numeric:tabular-nums;
  background:linear-gradient(120deg,var(--primary),var(--violet));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.metric-label{margin-top:10px;font-size:14px;color:var(--muted)}

/* ---------- 速查列表 ---------- */
.quick-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.quick-item{
  display:flex;gap:14px;align-items:flex-start;
  padding:18px 20px;border-radius:var(--r-md);
  border:1px solid var(--line);background:rgba(255,255,255,.02);
  transition:border-color .22s ease,background-color .22s ease,transform .22s ease;
}
.quick-item:hover{border-color:var(--primary-line);background:rgba(35,224,200,.05);transform:translateX(3px)}
.quick-item .qk{
  flex-shrink:0;width:26px;height:26px;border-radius:8px;
  display:grid;place-items:center;font-size:13px;font-weight:700;
  background:var(--violet-soft);color:#C9BBFF;border:1px solid rgba(122,92,255,.3);
}
.quick-item strong{display:block;font-size:15px;margin-bottom:4px}
.quick-item span{font-size:13.5px;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:960px}
.faq-item{
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:rgba(11,16,32,.62);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  overflow:hidden;
  transition:border-color .24s ease,box-shadow .24s ease;
}
.faq-item:hover{border-color:var(--line-strong)}
.faq-item[open]{border-color:var(--primary-line);box-shadow:0 10px 30px rgba(0,0,0,.4)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 22px;font-size:16px;font-weight:600;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{position:relative;flex-shrink:0;width:22px;height:22px;border-radius:50%;border:1px solid var(--primary-line);background:var(--primary-soft);transition:transform .28s ease}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--primary);border-radius:2px;transform:translate(-50%,-50%)}
.faq-icon::before{width:10px;height:2px}
.faq-icon::after{width:2px;height:10px;transition:opacity .25s ease,transform .25s ease}
.faq-item[open] .faq-icon{transform:rotate(180deg)}
.faq-item[open] .faq-icon::after{opacity:0;transform:translate(-50%,-50%) scaleY(.4)}
.faq-body{padding:0 22px 22px;color:var(--muted);font-size:15px}

/* ---------- CTA 横幅 ---------- */
.cta-band{position:relative;overflow:hidden;border-radius:var(--r-xl);border:1px solid rgba(35,224,200,.24);padding:48px 44px;
  background:linear-gradient(120deg,rgba(35,224,200,.16),rgba(122,92,255,.2));
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:26px 26px;opacity:.7;
}
.cta-band > *{position:relative;z-index:1}
.cta-band h2{margin-bottom:12px}
.cta-band p{color:#CFE4E1;max-width:62ch;margin-bottom:26px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:72px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(11,16,32,.6),rgba(5,7,15,.95));
  padding:56px 0 28px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--muted);max-width:36ch}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:var(--muted);transition:color .2s ease,transform .2s ease;display:inline-block}
.footer-col a:hover{color:var(--primary);transform:translateX(-2px)}
.footer-bottom{
  margin-top:40px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--faint);font-variant-numeric:tabular-nums;
}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .container{padding:0 24px}
  .search{width:220px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
  .footer-brand{grid-column:1 / -1;max-width:60ch}
}
@media (max-width:1024px){
  .banner-inner{grid-template-columns:1fr;gap:28px;padding:32px}
  .banner-media{aspect-ratio:16/9}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .metrics{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 0}
  .metric:nth-child(3){border-left:0;padding-left:0}
  .filter-bar{top:104px}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .topbar-tools .search{display:none}
  .topbar-tools .btn-primary{display:none}
  .hamburger{display:flex}
  .channel-note{display:none}
  .section{padding:44px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px}
  .grid-3{grid-template-columns:1fr}
  .quick-list{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .metrics{grid-template-columns:1fr;gap:24px 0}
  .metric{border-left:0;padding:0}
  .cta-band{padding:32px 22px}
  .filter-bar{position:static;margin-bottom:28px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
  .footer-brand{grid-column:1 / -1}
  .card-enter{opacity:1;transform:none}
}
@media (max-width:520px){
  h1{font-size:27px}
  .banner-inner{padding:24px 18px}
  .banner-actions .btn{width:100%}
  .cta-actions .btn{width:100%}
  .logo-text{font-size:15px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --bg:#05070F;
  --panel:#0B1020;
  --elev:#111731;
  --primary:#23E0C8;
  --primary-deep:#0FA795;
  --secondary:#7A5CFF;
  --accent:#FF5C7A;
  --gold:#FFB020;
  --text:#EAF2FF;
  --text-2:#9BA9C7;
  --text-3:#66738F;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --glass:rgba(17,23,49,.62);
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:6px;
  --shadow:0 10px 30px rgba(0,0,0,.45);
  --glow:0 0 0 1px rgba(35,224,200,.28), 0 10px 34px rgba(35,224,200,.16);
  --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:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::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:1.75;
  color:var(--text);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);
  background-size:32px 32px;
  pointer-events:none;
  z-index:0;
}
body::after{
  content:"";
  position:fixed;
  top:-340px;left:50%;
  width:1100px;height:680px;
  transform:translateX(-50%);
  background:radial-gradient(closest-side,rgba(35,224,200,.16),rgba(35,224,200,0) 70%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:2px;
  border-radius:4px;
}
button,input{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
::selection{background:rgba(35,224,200,.28);}
.container{
  width:100%;
  max-width:1280px;
  margin:0 auto;
  padding:0 32px;
  position:relative;
  z-index:1;
}

/* ---------- 顶部品牌行 ---------- */
.site-header{position:relative;z-index:40;}
.brand-bar{
  background:linear-gradient(180deg,rgba(11,16,32,.96),rgba(5,7,15,.92));
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px);
}
.brand-row{
  display:flex;
  align-items:center;
  gap:var(--sp-5);
  min-height:72px;
}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:36px;height:36px;
  display:grid;place-items:center;
  border-radius:10px;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  color:#04121A;
  font-weight:800;
  font-size:18px;
  box-shadow:0 6px 18px rgba(35,224,200,.28);
}
.logo-text{
  font-size:18px;
  font-weight:800;
  letter-spacing:.4px;
  white-space:nowrap;
}
.logo:hover .logo-text{color:var(--primary);}
.search-box{
  flex:1 1 auto;
  display:flex;
  align-items:center;
  gap:var(--sp-2);
  max-width:420px;
  margin-left:auto;
  padding:5px 6px 5px 16px;
  border-radius:999px;
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(12px);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box:focus-within{
  border-color:rgba(35,224,200,.6);
  box-shadow:0 0 0 3px rgba(35,224,200,.14);
}
.search-input{
  flex:1 1 auto;
  min-width:0;
  background:transparent;
  border:0;
  outline:none;
  font-size:14px;
  color:var(--text);
  padding:10px 0;
}
.search-input::placeholder{color:var(--text-3);}
.search-btn{
  flex:0 0 auto;
  border:0;
  cursor:pointer;
  padding:9px 18px;
  border-radius:999px;
  font-size:14px;
  font-weight:700;
  color:#04121A;
  background:linear-gradient(135deg,var(--primary),#5BF0D8);
  transition:transform .18s ease,box-shadow .18s ease,filter .18s ease;
}
.search-btn:hover{box-shadow:0 0 0 1px rgba(35,224,200,.5),0 8px 20px rgba(35,224,200,.22);}
.search-btn:active{transform:translateY(1px);}
.search-btn:disabled{opacity:.45;cursor:not-allowed;box-shadow:none;}
.header-cta{flex:0 0 auto;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--glass);
  cursor:pointer;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  transition:border-color .2s ease,background .2s ease;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform .25s ease,opacity .2s ease;}
.nav-toggle:hover{border-color:rgba(35,224,200,.5);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- 频道行 ---------- */
.channel-bar{
  position:sticky;
  top:0;
  z-index:38;
  background:rgba(6,9,19,.9);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(12px);
}
.channel-scroll{
  display:flex;
  align-items:center;
  gap:var(--sp-6);
  min-height:52px;
  overflow-x:auto;
  scrollbar-width:none;
}
.channel-scroll::-webkit-scrollbar{display:none;}
.channel-link{
  position:relative;
  flex:0 0 auto;
  padding:14px 0;
  font-size:15px;
  font-weight:600;
  color:var(--text-2);
  transition:color .2s ease;
}
.channel-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  border-radius:2px;
  background:var(--primary);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .22s ease;
}
.channel-link:hover{color:var(--text);}
.channel-link:hover::after{transform:scaleX(.5);}
.channel-link.is-active{color:var(--primary);}
.channel-link.is-active::after{transform:scaleX(1);}
.channel-note{
  flex:0 0 auto;
  margin-left:auto;
  font-size:13px;
  color:var(--text-3);
  white-space:nowrap;
}

/* ---------- 移动抽屉 ---------- */
.mobile-drawer{
  display:none;
  position:fixed;
  inset:0;
  z-index:60;
  background:rgba(5,7,15,.97);
  backdrop-filter:blur(10px);
  padding:88px 24px 40px;
  overflow-y:auto;
}
.mobile-drawer.is-open{display:block;}
.drawer-list{display:flex;flex-direction:column;gap:var(--sp-2);margin-bottom:var(--sp-6);}
.drawer-list a{
  display:block;
  padding:16px 18px;
  border-radius:var(--radius-md);
  border:1px solid var(--line);
  background:var(--panel);
  font-size:16px;
  font-weight:600;
  color:var(--text-2);
}
.drawer-list a.is-active{color:var(--primary);border-color:rgba(35,224,200,.4);}
.drawer-list a:hover{color:var(--text);border-color:var(--line-strong);}
.drawer-close{
  position:absolute;
  top:20px;right:20px;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--panel);
  cursor:pointer;
  font-size:20px;
  line-height:1;
  color:var(--text-2);
}
.drawer-close:hover{color:var(--primary);border-color:rgba(35,224,200,.5);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:0 26px;
  border-radius:999px;
  border:1px solid transparent;
  font-size:15px;
  font-weight:700;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.btn-sm{min-height:42px;padding:0 20px;font-size:14px;}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),#43EBD5);
  color:#04121A;
  box-shadow:var(--glow);
}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 0 0 1px rgba(35,224,200,.45),0 14px 34px rgba(35,224,200,.26);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(35,224,200,.3),0 4px 14px rgba(35,224,200,.16);}
.btn-primary:disabled{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none;}
.btn-ghost{
  background:transparent;
  border-color:var(--line-strong);
  color:var(--text);
}
.btn-ghost:hover{background:rgba(35,224,200,.08);border-color:rgba(35,224,200,.5);transform:translateY(-3px);}
.btn-ghost:active{transform:translateY(1px);background:rgba(35,224,200,.14);}
.btn-ghost:disabled{opacity:.45;cursor:not-allowed;transform:none;}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--primary);
}
.link-more::after{content:"›";font-size:16px;transition:transform .2s ease;}
.link-more:hover::after{transform:translateX(3px);}
.link-more:hover{color:#6BF5E3;}

/* ---------- 文章头 ---------- */
.article-hero{
  position:relative;
  padding:var(--sp-7) 0 var(--sp-6);
  border-bottom:1px solid var(--line);
  background:
    radial-gradient(900px 300px at 12% -40%,rgba(122,92,255,.16),transparent 70%),
    linear-gradient(180deg,rgba(11,16,32,.7),rgba(5,7,15,0));
}
.crumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  margin-bottom:var(--sp-5);
}
.crumb li{display:inline-flex;align-items:center;gap:8px;}
.crumb li::after{
  content:"";
  width:6px;height:6px;
  border-top:1px solid var(--text-3);
  border-right:1px solid var(--text-3);
  transform:rotate(45deg);
  display:inline-block;
}
.crumb li:last-child::after{display:none;}
.crumb a:hover{color:var(--primary);}
.crumb .crumb-current{color:var(--text-2);max-width:44ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:var(--sp-4);}
.chip{
  display:inline-flex;
  align-items:center;
  padding:5px 14px;
  border-radius:999px;
  font-size:13px;
  font-weight:600;
  color:var(--text-2);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
}
.chip-primary{
  color:#04121A;
  background:linear-gradient(135deg,var(--primary),#4AEFDA);
  border-color:transparent;
}
.chip-violet{
  color:#D9D2FF;
  background:rgba(122,92,255,.16);
  border-color:rgba(122,92,255,.4);
}
.article-hero h1{
  font-size:clamp(28px,4.4vw,48px);
  line-height:1.22;
  font-weight:800;
  letter-spacing:.2px;
  max-width:22ch;
}
.article-lead{
  margin-top:var(--sp-4);
  max-width:62ch;
  font-size:16px;
  line-height:1.85;
  color:var(--text-2);
}
.meta-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin-top:var(--sp-5);
  font-size:13px;
  color:var(--text-3);
}
.meta-row span.dot{width:4px;height:4px;border-radius:50%;background:var(--text-3);opacity:.7;}
.meta-row b{color:var(--text-2);font-weight:600;}

/* ---------- 正文布局 ---------- */
.article-main{padding:var(--sp-7) 0 var(--sp-8);}
.article-shell{
  display:grid;
  grid-template-columns:minmax(0,1fr) 320px;
  gap:var(--sp-7);
  align-items:start;
}
.panel{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow);
}
.article-card{
  padding:var(--sp-6) var(--sp-6) var(--sp-7);
}
.prose{
  max-width:820px;
  font-size:16px;
  line-height:1.9;
  color:#D8E2F5;
}
.prose > * + *{margin-top:1em;}
.prose p{font-size:16px;line-height:1.9;}
.prose h2{
  position:relative;
  margin-top:var(--sp-7);
  margin-bottom:var(--sp-4);
  padding-left:16px;
  font-size:clamp(22px,2.6vw,30px);
  line-height:1.35;
  font-weight:700;
  color:var(--text);
}
.prose h2::before{
  content:"";
  position:absolute;
  left:0;top:.22em;bottom:.22em;
  width:3px;
  border-radius:2px;
  background:linear-gradient(180deg,var(--primary),var(--secondary));
}
.prose h3{
  position:relative;
  margin-top:var(--sp-6);
  margin-bottom:var(--sp-3);
  padding-left:13px;
  font-size:19px;
  line-height:1.45;
  font-weight:700;
  color:var(--text);
}
.prose h3::before{
  content:"";
  position:absolute;
  left:0;top:.3em;bottom:.3em;
  width:3px;
  border-radius:2px;
  background:rgba(35,224,200,.55);
}
.prose h4{margin-top:var(--sp-5);font-size:16px;font-weight:700;color:var(--text);}
.prose ul,.prose ol{margin-top:1em;padding-left:0;}
.prose ul li,.prose ol li{position:relative;padding-left:24px;margin-bottom:10px;line-height:1.85;}
.prose ul li::before{
  content:"";
  position:absolute;
  left:4px;top:.72em;
  width:7px;height:7px;
  border-radius:2px;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
}
.prose ol{counter-reset:proseol;}
.prose ol li{counter-increment:proseol;}
.prose ol li::before{
  content:counter(proseol);
  position:absolute;
  left:0;top:.15em;
  width:18px;
  font-variant-numeric:tabular-nums;
  font-weight:700;
  font-size:14px;
  color:var(--primary);
}
.prose blockquote{
  margin:var(--sp-5) 0;
  padding:18px 22px;
  border-left:3px solid var(--primary);
  border-radius:0 var(--radius-md) var(--radius-md) 0;
  background:rgba(35,224,200,.06);
  color:#CBD8EE;
  font-size:15.5px;
}
.prose img{
  margin:var(--sp-5) auto;
  border-radius:var(--radius-md);
  border:1px solid var(--line);
}
.prose figure{margin:var(--sp-5) 0;}
.prose figcaption{
  margin-top:10px;
  text-align:center;
  font-size:13px;
  color:var(--text-3);
}
.prose a{
  color:var(--primary);
  text-decoration:underline dashed;
  text-underline-offset:3px;
}
.prose a:hover{text-decoration-style:solid;color:#6BF5E3;}
.prose strong{color:#FFFFFF;font-weight:700;}
.prose code{
  padding:2px 7px;
  border-radius:var(--radius-sm);
  background:rgba(122,92,255,.18);
  border:1px solid rgba(122,92,255,.3);
  font-size:14px;
  color:#D9D2FF;
}
.prose pre{
  overflow-x:auto;
  padding:18px;
  border-radius:var(--radius-md);
  background:#080C18;
  border:1px solid var(--line);
  font-size:14px;
}
.prose pre code{background:none;border:0;padding:0;}
.prose table{
  width:100%;
  border-collapse:collapse;
  margin:var(--sp-5) 0;
  font-size:14.5px;
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  overflow:hidden;
}
.prose table th,.prose table td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;}
.prose table thead th{background:rgba(122,92,255,.14);color:var(--text);font-weight:700;}
.prose table tbody tr:nth-child(even){background:rgba(255,255,255,.028);}
.prose table tbody tr:hover{background:rgba(35,224,200,.06);}
.prose hr{margin:var(--sp-6) 0;border:0;border-top:1px solid var(--line);}
.table-wrap{width:100%;overflow-x:auto;}

/* 空态 */
.empty-state{
  max-width:640px;
  margin:0 auto;
  padding:var(--sp-8) var(--sp-5);
  text-align:center;
}
.empty-icon{
  width:56px;height:56px;
  margin:0 auto var(--sp-4);
  border-radius:50%;
  border:1px dashed var(--line-strong);
  display:grid;place-items:center;
  color:var(--text-3);
  font-size:22px;
}
.empty-title{font-size:20px;font-weight:700;margin-bottom:var(--sp-3);}
.empty-desc{font-size:15px;color:var(--text-2);margin-bottom:var(--sp-5);}

/* ---------- 侧栏 ---------- */
.side-col{display:flex;flex-direction:column;gap:var(--sp-5);}
.side-sticky{position:sticky;top:96px;display:flex;flex-direction:column;gap:var(--sp-5);}
.side-card{
  padding:var(--sp-5);
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow);
}
.side-title{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:15px;
  font-weight:700;
  margin-bottom:var(--sp-4);
}
.side-title::before{
  content:"";
  width:3px;height:14px;
  border-radius:2px;
  background:linear-gradient(180deg,var(--primary),var(--secondary));
}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:340px;overflow-y:auto;}
.toc-list a{
  display:block;
  padding:8px 10px;
  border-radius:10px;
  font-size:14px;
  color:var(--text-2);
  border-left:2px solid transparent;
  transition:color .2s ease,background .2s ease,border-color .2s ease;
}
.toc-list a:hover{color:var(--text);background:rgba(255,255,255,.04);border-left-color:var(--primary);}
.toc-list a.toc-sub{padding-left:24px;font-size:13.5px;color:var(--text-3);}
.toc-empty{font-size:13px;color:var(--text-3);padding:6px 2px;}
.side-rec{display:flex;flex-direction:column;gap:var(--sp-4);}
.side-rec-item{display:flex;gap:12px;align-items:flex-start;border-radius:var(--radius-md);padding:4px;transition:background .2s ease;}
.side-rec-item:hover{background:rgba(255,255,255,.04);}
.side-rec-thumb{
  width:64px;height:64px;
  flex:0 0 auto;
  border-radius:10px;
  overflow:hidden;
  background:var(--elev);
}
.side-rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.side-rec-item:hover .side-rec-thumb img{transform:scale(1.06);}
.side-rec-txt{min-width:0;}
.side-rec-txt strong{
  display:block;
  font-size:14px;
  font-weight:600;
  line-height:1.5;
  margin-bottom:4px;
  color:var(--text);
}
.side-rec-item:hover .side-rec-txt strong{color:var(--primary);}
.side-rec-txt span{font-size:12.5px;color:var(--text-3);}
.side-cta{
  padding:var(--sp-5);
  border-radius:var(--radius-lg);
  border:1px solid rgba(35,224,200,.28);
  background:linear-gradient(160deg,rgba(35,224,200,.14),rgba(122,92,255,.12));
}
.side-cta p{font-size:14px;color:var(--text-2);margin-bottom:var(--sp-4);}
.side-cta .btn{width:100%;}

/* ---------- 相关推荐 ---------- */
.section{padding:var(--sp-8) 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:var(--sp-5);
  margin-bottom:var(--sp-6);
}
.section-head h2{
  font-size:clamp(22px,2.6vw,32px);
  line-height:1.3;
  font-weight:700;
}
.section-head p{
  margin-top:8px;
  font-size:14px;
  color:var(--text-3);
}
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:var(--sp-5);
}
.post-card{
  display:flex;
  flex-direction:column;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.post-card:hover{
  transform:translateY(-4px);
  border-color:rgba(35,224,200,.4);
  box-shadow:0 18px 40px rgba(0,0,0,.5);
}
.post-thumb{
  position:relative;
  aspect-ratio:16/9;
  background:linear-gradient(120deg,#0D1428,#111731);
  overflow:hidden;
}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.post-card:hover .post-thumb img{transform:scale(1.05);}
.post-thumb::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 45%,rgba(5,7,15,.7));
}
.post-body{padding:var(--sp-5);display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.post-cat{
  align-self:flex-start;
  font-size:12px;
  font-weight:700;
  padding:4px 10px;
  border-radius:var(--radius-sm);
  color:#D9D2FF;
  background:rgba(122,92,255,.18);
  border:1px solid rgba(122,92,255,.35);
}
.post-body h3{font-size:17px;line-height:1.5;font-weight:700;}
.post-card:hover .post-body h3{color:var(--primary);}
.post-excerpt{
  font-size:14px;
  line-height:1.75;
  color:var(--text-2);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-meta{
  margin-top:auto;
  padding-top:var(--sp-3);
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:12.5px;
  color:var(--text-3);
}

/* ---------- 上下篇 ---------- */
.nav-pair{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:var(--sp-5);
  margin-top:var(--sp-6);
}
.pair-card{
  display:flex;
  flex-direction:column;
  gap:8px;
  padding:var(--sp-5);
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:var(--elev);
  transition:transform .22s ease,border-color .22s ease;
}
.pair-card:hover{transform:translateY(-3px);border-color:rgba(35,224,200,.4);}
.pair-card span{font-size:12.5px;color:var(--text-3);}
.pair-card strong{font-size:15.5px;font-weight:700;line-height:1.55;}
.pair-card:hover strong{color:var(--primary);}
.back-row{display:flex;flex-wrap:wrap;gap:var(--sp-3);margin-top:var(--sp-5);}

/* ---------- FAQ ---------- */
.faq-wrap{display:flex;flex-direction:column;gap:var(--sp-4);max-width:900px;}
.faq-item{
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(12px);
  overflow:hidden;
  transition:border-color .22s ease,background .22s ease;
}
.faq-item:hover{border-color:var(--line-strong);}
.faq-item[open]{border-color:rgba(35,224,200,.4);background:rgba(17,23,49,.8);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:var(--sp-4);
  padding:20px var(--sp-5);
  font-size:16px;
  font-weight:600;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{
  flex:0 0 auto;
  width:26px;height:26px;
  border-radius:8px;
  display:grid;place-items:center;
  border:1px solid var(--line-strong);
  color:var(--primary);
  font-size:16px;
  line-height:1;
  transition:transform .25s ease,background .25s ease;
}
.faq-item[open] .faq-icon{transform:rotate(180deg);background:rgba(35,224,200,.14);}
.faq-answer{
  padding:0 var(--sp-5) 20px;
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-lg);
  border:1px solid rgba(35,224,200,.24);
  background:linear-gradient(120deg,rgba(35,224,200,.2),rgba(122,92,255,.22));
  padding:var(--sp-8) var(--sp-6);
  text-align:center;
}
.cta-band::before{
  content:"";
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:32px 32px;
  opacity:.5;
}
.cta-band > *{position:relative;z-index:1;}
.cta-band h2{font-size:clamp(22px,2.6vw,32px);font-weight:800;line-height:1.3;}
.cta-band p{margin:var(--sp-4) auto var(--sp-6);max-width:56ch;font-size:15px;line-height:1.85;color:#D6E2F6;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:var(--sp-9);
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(11,16,32,.7),rgba(5,7,15,1));
  padding:var(--sp-8) 0 var(--sp-6);
  position:relative;
  z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:var(--sp-6);
}
.footer-brand p{
  margin-top:var(--sp-4);
  max-width:42ch;
  font-size:14px;
  line-height:1.85;
  color:var(--text-2);
}
.footer-brand .logo-text{font-size:16px;}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:var(--sp-4);}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{
  font-size:14px;
  color:var(--text-2);
  display:inline-block;
  transition:color .2s ease,transform .2s ease;
}
.footer-col a:hover{color:var(--primary);transform:translateX(2px);}
.footer-bottom{
  margin-top:var(--sp-7);
  padding-top:var(--sp-5);
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:var(--sp-3);
  font-size:13px;
  color:var(--text-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .article-shell{grid-template-columns:minmax(0,1fr) 288px;gap:var(--sp-6);}
}
@media (max-width:1024px){
  .container{padding:0 24px;}
  .article-shell{grid-template-columns:minmax(0,1fr);}
  .side-sticky{position:static;}
  .side-col{order:2;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .search-box{max-width:320px;}
}
@media (max-width:834px){
  .search-box{display:none;}
  .nav-toggle{display:flex;}
  .header-cta{display:none;}
  .channel-note{display:none;}
}
@media (max-width:768px){
  body{font-size:15px;}
  .container{padding:0 16px;}
  .article-card{padding:var(--sp-5) var(--sp-4) var(--sp-6);}
  .article-hero{padding:var(--sp-6) 0 var(--sp-5);}
  .article-hero h1{max-width:none;}
  .meta-row{gap:8px;font-size:12.5px;}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .nav-pair{grid-template-columns:minmax(0,1fr);}
  .section{padding:var(--sp-7) 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:var(--sp-3);}
  .cta-band{padding:var(--sp-7) var(--sp-5);}
  .footer-grid{grid-template-columns:1fr;gap:var(--sp-6);}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .brand-row{min-height:64px;gap:var(--sp-3);}
  .logo-text{font-size:15px;}
  .logo-mark{width:32px;height:32px;font-size:16px;}
  .channel-scroll{gap:var(--sp-5);min-height:48px;}
  .channel-link{font-size:14px;}
  .prose{font-size:15px;}
  .prose p{font-size:15px;}
  .prose h2{font-size:21px;padding-left:13px;}
  .prose h3{font-size:17.5px;}
  .faq-item summary{font-size:15px;padding:16px var(--sp-4);}
  .faq-answer{padding:0 var(--sp-4) 18px;font-size:14px;}
  .btn{width:100%;}
  .back-row .btn,.side-cta .btn{width:100%;}
  .post-body{padding:var(--sp-4);}
}

/* roulang page: category2 */
:root{
  --bg:#05070F;
  --panel:#0B1020;
  --panel-2:#111731;
  --panel-3:#151C3A;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --cyan:#23E0C8;
  --purple:#7A5CFF;
  --coral:#FF5C7A;
  --gold:#FFB020;
  --text:#EAF2FF;
  --text-2:#9BA9C7;
  --text-3:#66738F;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:8px;
  --sh-1:0 10px 30px rgba(0,0,0,.45);
  --sh-glow:0 0 0 1px rgba(35,224,200,.28),0 10px 34px rgba(35,224,200,.16);
  --c-max:1280px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  font-variant-numeric:tabular-nums;
  letter-spacing:.01em;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);
  background-size:32px 32px;
  pointer-events:none;
  z-index:0;
}
body::after{
  content:"";
  position:fixed;
  top:-320px;
  left:50%;
  width:900px;
  height:640px;
  transform:translateX(-50%);
  background:radial-gradient(circle,rgba(35,224,200,.16),rgba(35,224,200,0) 68%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:800;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px;}
.container{
  width:100%;
  max-width:var(--c-max);
  margin:0 auto;
  padding:0 32px;
  position:relative;
  z-index:1;
}
.skip-link{
  position:absolute;left:-9999px;top:0;background:var(--cyan);color:#04121A;padding:10px 18px;border-radius:0 0 10px 0;z-index:99;
}
.skip-link:focus{left:0;}

/* ============ 头部 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:40;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  background:rgba(8,11,22,.72);
  border-bottom:1px solid var(--line);
}
.brand-bar{padding:14px 0;}
.brand-inner{
  display:flex;
  align-items:center;
  gap:20px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.logo-mark{
  width:38px;height:38px;
  border-radius:11px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--cyan),var(--purple));
  color:#04121A;
  font-weight:900;
  font-size:20px;
  box-shadow:0 6px 18px rgba(35,224,200,.25);
}
.logo-text{
  font-size:19px;
  font-weight:800;
  letter-spacing:.02em;
  white-space:nowrap;
}
.brand-actions{
  display:flex;
  align-items:center;
  gap:12px;
  margin-left:auto;
}
.search{
  display:flex;
  align-items:center;
  gap:8px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  border-radius:999px;
  padding:4px 6px 4px 16px;
  width:280px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search:focus-within{
  border-color:rgba(35,224,200,.65);
  box-shadow:0 0 0 4px rgba(35,224,200,.12);
}
.search input{
  border:0;background:none;outline:none;
  flex:1;
  min-width:0;
  height:38px;
  font-size:14px;
  color:var(--text);
}
.search input::placeholder{color:var(--text-3);}
.search button{
  height:38px;
  padding:0 18px;
  border-radius:999px;
  background:rgba(35,224,200,.14);
  color:var(--cyan);
  font-size:14px;
  font-weight:700;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.search button:hover{background:var(--cyan);color:#04121A;}
.search button:active{transform:translateY(1px);}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 24px;
  border-radius:999px;
  font-size:15px;
  font-weight:700;
  white-space:nowrap;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.btn-primary{
  background:var(--cyan);
  color:#04121A;
  box-shadow:var(--sh-glow);
}
.btn-primary:hover{
  transform:translateY(-3px);
  box-shadow:0 0 0 1px rgba(35,224,200,.5),0 16px 40px rgba(35,224,200,.28);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(35,224,200,.35),0 6px 16px rgba(35,224,200,.2);}
.btn-ghost{
  border:1px solid var(--line-strong);
  color:var(--text);
  background:transparent;
}
.btn-ghost:hover{background:rgba(35,224,200,.08);border-color:rgba(35,224,200,.55);transform:translateY(-3px);}
.btn-ghost:active{transform:translateY(0);}
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--cyan);
  font-size:14px;
  font-weight:700;
  transition:transform .2s var(--ease),color .2s var(--ease);
}
.btn-text::after{content:"→";transition:transform .2s var(--ease);}
.btn-text:hover{transform:translateX(2px);}
.btn-text:hover::after{transform:translateX(3px);}
.btn:disabled,.btn[disabled]{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none;}
.menu-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.05);
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
}
.menu-toggle span{
  display:block;width:18px;height:2px;border-radius:2px;background:var(--text);
  transition:transform .25s var(--ease),opacity .25s var(--ease);
}
.menu-toggle:hover{border-color:rgba(35,224,200,.5);}

.channel-bar{
  border-top:1px solid var(--line);
  background:rgba(5,7,15,.6);
  border-bottom:1px solid var(--line);
}
.channel-scroll{
  display:flex;
  align-items:center;
  gap:28px;
  overflow-x:auto;
  scrollbar-width:none;
  padding-top:2px;
  padding-bottom:2px;
}
.channel-scroll::-webkit-scrollbar{display:none;}
.channel-link{
  position:relative;
  padding:14px 0 13px;
  font-size:15px;
  color:var(--text-2);
  white-space:nowrap;
  transition:color .2s var(--ease);
}
.channel-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  background:var(--cyan);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .24s var(--ease);
}
.channel-link:hover{color:var(--text);}
.channel-link.is-active{color:var(--cyan);font-weight:700;}
.channel-link.is-active::after{transform:scaleX(1);}
.channel-note{
  margin-left:auto;
  font-size:13px;
  color:var(--text-3);
  white-space:nowrap;
  padding-right:4px;
}
.drawer{
  position:fixed;
  inset:0;
  z-index:60;
  background:rgba(5,7,15,.96);
  backdrop-filter:blur(8px);
  display:flex;
  flex-direction:column;
  padding:24px;
  transform:translateY(-100%);
  opacity:0;
  pointer-events:none;
  transition:transform .32s var(--ease),opacity .32s var(--ease);
}
.drawer.is-open{transform:translateY(0);opacity:1;pointer-events:auto;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px;}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.05);font-size:20px;line-height:1;
}
.drawer-close:hover{border-color:rgba(35,224,200,.5);color:var(--cyan);}
.drawer-links{display:flex;flex-direction:column;gap:6px;}
.drawer-links a{
  padding:14px 4px;
  font-size:18px;
  font-weight:700;
  border-bottom:1px solid var(--line);
  color:var(--text-2);
}
.drawer-links a:hover,.drawer-links a.is-active{color:var(--cyan);}
.drawer .btn{margin-top:28px;}

/* ============ 榜单首屏 ============ */
main{position:relative;z-index:1;}
.rank-hero{
  position:relative;
  padding:56px 0 40px;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.rank-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center right;
  opacity:.16;
  mask-image:linear-gradient(90deg,rgba(0,0,0,0) 30%,rgba(0,0,0,1) 100%);
  -webkit-mask-image:linear-gradient(90deg,rgba(0,0,0,0) 30%,rgba(0,0,0,1) 100%);
  pointer-events:none;
}
.rank-hero .container{position:relative;}
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  margin-bottom:20px;
}
.crumb li{display:inline-flex;align-items:center;gap:8px;}
.crumb li+li::before{content:"›";color:var(--text-3);}
.crumb a{color:var(--text-2);transition:color .2s var(--ease);}
.crumb a:hover{color:var(--cyan);}
.ticker{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:8px 16px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.05);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  font-size:13px;
  color:var(--text-2);
  margin-bottom:20px;
}
.ticker .dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--coral);
  box-shadow:0 0 0 4px rgba(255,92,122,.18);
  animation:pulse 2.4s infinite;
}
@keyframes pulse{
  0%,100%{box-shadow:0 0 0 4px rgba(255,92,122,.18);}
  50%{box-shadow:0 0 0 8px rgba(255,92,122,.05);}
}
.rank-hero h1{
  font-size:clamp(28px,4.2vw,46px);
  line-height:1.22;
  max-width:820px;
  letter-spacing:-.01em;
}
.rank-hero .lead{
  margin-top:18px;
  max-width:680px;
  color:var(--text-2);
  font-size:16px;
}
.metrics{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:32px;
  margin-top:40px;
  max-width:860px;
}
.metric{border-left:2px solid rgba(35,224,200,.35);padding-left:16px;}
.metric .num{
  font-size:clamp(24px,2.6vw,32px);
  font-weight:800;
  line-height:1.2;
  font-variant-numeric:tabular-nums;
}
.metric .num small{font-size:15px;font-weight:700;color:var(--text-2);margin-left:4px;}
.metric .cap{font-size:13px;color:var(--text-3);margin-top:6px;}

/* ============ 榜别切换 ============ */
.filter-bar{
  margin:32px 0 0;
  padding:12px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.05);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  display:flex;
  align-items:center;
  gap:8px;
  overflow-x:auto;
  scrollbar-width:none;
}
.filter-bar::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;
  padding:9px 18px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(11,16,32,.7);
  color:var(--text-2);
  font-size:14px;
  white-space:nowrap;
  transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
}
.chip:hover{color:var(--text);border-color:rgba(35,224,200,.4);}
.chip.is-active{
  background:var(--cyan);
  color:#04121A;
  border-color:var(--cyan);
  font-weight:700;
}
.filter-hint{margin-left:auto;font-size:13px;color:var(--text-3);white-space:nowrap;padding-right:8px;}

/* ============ 板块通用 ============ */
.section{padding:64px 0 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  gap:20px;
  flex-wrap:wrap;
  margin-bottom:24px;
}
.section-head h2{font-size:clamp(22px,2.5vw,30px);}
.section-head h2::before{
  content:"";
  display:block;
  width:36px;height:3px;border-radius:2px;
  background:var(--cyan);
  margin-bottom:14px;
}
.section-head .desc{
  color:var(--text-2);
  font-size:14px;
  max-width:560px;
  margin-left:auto;
  text-align:right;
}
.board{
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:var(--panel);
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.board-title{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 24px;
  border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,rgba(35,224,200,.08),rgba(35,224,200,0));
}
.board-title h3{
  font-size:18px;
  display:flex;
  align-items:center;
  gap:10px;
}
.board-title .tag{
  font-size:12px;
  font-weight:700;
  padding:4px 10px;
  border-radius:6px;
  background:rgba(122,92,255,.22);
  color:#C3B4FF;
  border:1px solid rgba(122,92,255,.35);
}
.board-title .tag.is-hot{
  background:rgba(255,92,122,.16);
  color:#FFB0C1;
  border-color:rgba(255,92,122,.38);
}
.board-title .count{font-size:13px;color:var(--text-3);}

/* ============ 排行行 ============ */
.rank-list{display:block;}
.rank-row{
  position:relative;
  display:grid;
  grid-template-columns:56px 84px minmax(0,1fr) auto;
  align-items:center;
  gap:18px;
  padding:16px 24px;
  border-bottom:1px solid var(--line);
  transition:background .22s var(--ease);
}
.rank-row:last-child{border-bottom:0;}
.rank-row::before{
  content:"";
  position:absolute;
  left:0;top:10px;bottom:10px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:var(--cyan);
  transform:scaleY(0);
  transition:transform .24s var(--ease);
}
.rank-row:hover{background:rgba(255,255,255,.045);}
.rank-row:hover::before{transform:scaleY(1);}
.rank-row:hover .rank-title{color:var(--cyan);}
.rank-no{
  font-size:26px;
  font-weight:800;
  color:var(--text-3);
  font-variant-numeric:tabular-nums;
  letter-spacing:.02em;
}
.rank-no.is-top{
  color:var(--gold);
  display:inline-grid;
  place-items:center;
  width:38px;height:38px;
  border-radius:10px;
  background:rgba(255,176,32,.14);
  border:1px solid rgba(255,176,32,.4);
  font-size:20px;
  box-shadow:0 6px 16px rgba(255,176,32,.14);
}
.rank-thumb{
  width:84px;
  aspect-ratio:2/3;
  border-radius:var(--r-md);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--panel-2);
}
.rank-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease);}
.rank-row:hover .rank-thumb img{transform:scale(1.06);}
.rank-body{min-width:0;display:flex;flex-direction:column;gap:4px;}
.rank-title{
  font-size:16px;
  font-weight:700;
  color:var(--text);
  transition:color .2s var(--ease);
}
.rank-desc{
  font-size:13.5px;
  color:var(--text-2);
  overflow:hidden;
  display:-webkit-box;
  -webkit-line-clamp:1;
  -webkit-box-orient:vertical;
}
.rank-meta{font-size:12.5px;color:var(--text-3);}
.rank-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:700;
  color:var(--text-2);
  padding:8px 14px;
  border-radius:999px;
  border:1px solid var(--line);
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease),transform .2s var(--ease);
  white-space:nowrap;
}
.rank-link:hover{
  color:var(--cyan);
  border-color:rgba(35,224,200,.5);
  background:rgba(35,224,200,.08);
  transform:translateX(2px);
}
.rank-link:active{transform:translateX(0);}
.rank-columns{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}

/* ============ 上榜说明 ============ */
.note-list{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
  margin-top:8px;
}
.note-item{
  padding:22px 22px 22px 24px;
  border-left:3px solid rgba(35,224,200,.5);
  background:linear-gradient(90deg,rgba(255,255,255,.045),rgba(255,255,255,0));
  border-radius:0 var(--r-md) var(--r-md) 0;
  transition:border-color .22s var(--ease),transform .22s var(--ease);
}
.note-item:hover{border-color:var(--cyan);transform:translateY(-3px);}
.note-item h3{font-size:17px;margin-bottom:8px;}
.note-item p{font-size:14px;color:var(--text-2);}

/* ============ CTA ============ */
.cta-band{
  margin-top:72px;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:
    linear-gradient(120deg,rgba(35,224,200,.18),rgba(122,92,255,.2)),
    var(--panel);
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:32px 32px;
  opacity:.5;
  pointer-events:none;
}
.cta-inner{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  padding:52px 0;
  flex-wrap:wrap;
}
.cta-inner h2{font-size:clamp(22px,2.6vw,30px);max-width:620px;}
.cta-inner p{color:var(--text-2);font-size:15px;margin-top:12px;max-width:620px;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:0;
  padding:64px 0 28px;
  background:rgba(8,11,22,.9);
  border-top:1px solid var(--line);
  position:relative;
  z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--text-2);max-width:360px;}
.footer-col h4{
  font-size:15px;
  margin-bottom:16px;
  color:var(--text);
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{
  font-size:14px;
  color:var(--text-2);
  display:inline-block;
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-col a:hover{color:var(--cyan);transform:translateX(2px);}
.footer-bottom{
  margin-top:48px;
  padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .container{padding:0 24px;}
  .search{width:220px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
  .footer-brand{grid-column:1 / -1;}
}
@media (max-width:1024px){
  .rank-columns{grid-template-columns:minmax(0,1fr);}
  .note-list{grid-template-columns:repeat(2,minmax(0,1fr));}
  .metrics{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
  .search{width:180px;}
  .channel-note{display:none;}
  .rank-row{grid-template-columns:48px 74px minmax(0,1fr) auto;gap:14px;padding:14px 18px;}
  .rank-thumb{width:74px;}
}
@media (max-width:834px){
  .brand-actions .search{display:none;}
  .menu-toggle{display:inline-flex;}
  .site-header .btn-primary{display:none;}
  .section-head .desc{margin-left:0;text-align:left;}
}
@media (max-width:768px){
  body{font-size:15px;}
  .container{padding:0 16px;}
  .rank-hero{padding:36px 0 28px;}
  .rank-row{grid-template-columns:40px 64px minmax(0,1fr);align-items:flex-start;}
  .rank-thumb{width:64px;}
  .rank-link{grid-column:3;justify-self:start;margin-top:6px;padding:6px 12px;font-size:13px;}
  .rank-no{font-size:22px;}
  .rank-no.is-top{width:32px;height:32px;font-size:17px;}
  .note-list{grid-template-columns:minmax(0,1fr);}
  .cta-inner{padding:40px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .site-footer{padding:44px 0 24px;}
}
@media (max-width:520px){
  .logo-text{font-size:16px;}
  .logo-mark{width:34px;height:34px;font-size:18px;}
  .metrics{grid-template-columns:1fr 1fr;gap:18px;}
  .metric .num{font-size:22px;}
  .section{padding:44px 0 0;}
  .board-title{padding:16px 16px;flex-direction:column;align-items:flex-start;gap:6px;}
  .rank-row{grid-template-columns:34px 56px minmax(0,1fr);padding:12px 14px;gap:10px;}
  .rank-thumb{width:56px;}
  .footer-grid{grid-template-columns:1fr;}
  .filter-hint{display:none;}
  .cta-inner{gap:20px;}
  .cta-inner .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;}
}

/* roulang page: category3 */
:root{
  --bg:#05070F;
  --panel:#0B1020;
  --raise:#111731;
  --primary:#23E0C8;
  --primary-soft:rgba(35,224,200,.14);
  --secondary:#7A5CFF;
  --coral:#FF5C7A;
  --gold:#FFB020;
  --text:#EAF2FF;
  --muted:#9BA9C7;
  --dim:#66738F;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.18);
  --r-xl:18px;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:8px;
  --r-pill:999px;
  --shadow:0 10px 30px rgba(0,0,0,.45);
  --glow:0 0 0 1px rgba(35,224,200,.28), 0 10px 34px rgba(35,224,200,.16);
  --maxw:1280px;
  --ease:.25s cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);
  background-size:32px 32px;
  pointer-events:none;
  z-index:0;
}
body::after{
  content:"";
  position:fixed;
  top:-320px;
  left:50%;
  width:900px;
  height:640px;
  transform:translateX(-50%);
  background:radial-gradient(closest-side,rgba(35,224,200,.16),transparent 72%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
.container{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 32px;
  position:relative;
  z-index:1;
}
.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip:rect(0 0 0 0);white-space:nowrap;border:0;
}

/* ---------- header ---------- */
.site-header{position:relative;z-index:60;}
.brand-bar{
  display:flex;
  align-items:center;
  gap:18px;
  padding:16px 0;
}
.logo{display:flex;align-items:center;gap:10px;flex:none;}
.logo-mark{
  width:38px;height:38px;border-radius:11px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  color:#04140f;font-weight:800;font-size:19px;
  box-shadow:0 6px 18px rgba(35,224,200,.24);
}
.logo-text{font-size:17px;font-weight:700;letter-spacing:.4px;white-space:nowrap;}
.search-box{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:8px;
  height:44px;
  padding:0 8px 0 16px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  backdrop-filter:blur(10px);
  transition:border-color var(--ease),box-shadow var(--ease);
  min-width:250px;
}
.search-box:focus-within{border-color:rgba(35,224,200,.6);box-shadow:0 0 0 4px rgba(35,224,200,.12);}
.search-box input{
  flex:1;min-width:0;border:0;background:transparent;font-size:14px;outline:none;
}
.search-box input::placeholder{color:var(--dim);}
.search-btn{
  width:32px;height:32px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--primary-soft);color:var(--primary);
  transition:background var(--ease),color var(--ease);
}
.search-btn:hover{background:rgba(35,224,200,.28);}
.search-btn:active{transform:translateY(1px);}
.search-btn svg{width:16px;height:16px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;
  border-radius:var(--r-pill);
  font-size:15px;font-weight:600;
  white-space:nowrap;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),#19c3b1);
  color:#04140f;
  box-shadow:var(--glow);
}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 0 0 1px rgba(35,224,200,.5),0 14px 36px rgba(35,224,200,.24);}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(35,224,200,.32),0 6px 16px rgba(35,224,200,.16);}
.btn-ghost{
  border:1px solid var(--line-strong);
  color:var(--text);
  background:rgba(255,255,255,.02);
}
.btn-ghost:hover{background:var(--primary-soft);border-color:rgba(35,224,200,.5);color:var(--primary);transform:translateY(-3px);}
.btn-ghost:active{transform:translateY(0);}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.nav-toggle{
  display:none;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;margin:2.5px auto;transition:transform var(--ease),opacity var(--ease);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(5px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-5px) rotate(-45deg);}

.channel-bar{
  position:sticky;top:0;z-index:60;
  background:rgba(7,10,20,.9);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px);
}
.channel-scroll{
  display:flex;align-items:center;gap:6px;
  overflow-x:auto;
  scrollbar-width:none;
}
.channel-scroll::-webkit-scrollbar{display:none;}
.channel-link{
  position:relative;
  padding:15px 14px;
  font-size:14.5px;
  color:var(--muted);
  white-space:nowrap;
  transition:color var(--ease);
}
.channel-link:hover{color:var(--text);}
.channel-link.is-active{color:var(--primary);font-weight:600;}
.channel-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;
  background:var(--primary);border-radius:2px;
}
.channel-note{
  margin-left:auto;padding:0 0 0 18px;
  font-size:12.5px;color:var(--dim);white-space:nowrap;
}

/* ---------- topic hero ---------- */
.topic-hero{padding:44px 0 8px;position:relative;}
.topic-hero__grid{
  display:grid;
  grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);
  gap:26px;
  align-items:start;
}
.topic-feature{
  background:linear-gradient(180deg,rgba(17,23,49,.9),rgba(11,16,32,.96));
  border:1px solid var(--line);
  border-radius:var(--r-xl);
  overflow:hidden;
  box-shadow:var(--shadow);
}
.topic-feature__media{position:relative;aspect-ratio:16/9;background:#0d1428;overflow:hidden;}
.topic-feature__media img{width:100%;height:100%;object-fit:cover;}
.topic-feature__media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,7,15,.05) 40%,rgba(5,7,15,.85));
}
.topic-feature__tag{
  position:absolute;left:20px;top:20px;z-index:2;
}
.topic-feature__body{padding:26px 28px 30px;}
.topic-feature h1{
  font-size:clamp(26px,3.5vw,38px);
  line-height:1.25;
  font-weight:800;
  letter-spacing:.2px;
}
.topic-feature__lead{
  margin-top:14px;
  color:var(--muted);
  font-size:15.5px;
  line-height:1.8;
  max-width:60ch;
}
.topic-feature__actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px;}

.chip{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;
  border-radius:var(--r-sm);
  font-size:12.5px;letter-spacing:.3px;
  background:rgba(255,255,255,.06);
  border:1px solid var(--line);
  color:var(--muted);
}
.chip-accent{background:var(--primary-soft);border-color:rgba(35,224,200,.4);color:var(--primary);}
.chip-purple{background:rgba(122,92,255,.16);border-color:rgba(122,92,255,.42);color:#b7a6ff;}
.chip-coral{background:rgba(255,92,122,.14);border-color:rgba(255,92,122,.42);color:#ff9cae;}

.picks{
  background:linear-gradient(180deg,rgba(17,23,49,.82),rgba(11,16,32,.94));
  border:1px solid var(--line);
  border-radius:var(--r-xl);
  padding:22px;
  box-shadow:var(--shadow);
}
.picks__head{
  display:flex;align-items:center;justify-content:space-between;
  padding-bottom:14px;border-bottom:1px solid var(--line);
}
.picks__head h2{font-size:16px;letter-spacing:.6px;}
.picks__head span{font-size:12.5px;color:var(--dim);}
.picks__list{margin-top:6px;}
.pick{
  display:grid;
  grid-template-columns:78px minmax(0,1fr);
  gap:14px;
  padding:14px 12px;
  border-radius:var(--r-md);
  border-bottom:1px solid var(--line);
  transition:background var(--ease),transform var(--ease);
}
.pick:last-child{border-bottom:0;}
.pick:hover{background:rgba(255,255,255,.04);transform:translateX(3px);}
.pick__thumb{
  width:78px;height:78px;border-radius:10px;overflow:hidden;background:#0d1428;
}
.pick__thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.pick:hover .pick__thumb img{transform:scale(1.06);}
.pick__no{
  display:inline-block;font-size:11.5px;color:var(--gold);letter-spacing:1px;margin-bottom:2px;
}
.pick h3{font-size:14.5px;line-height:1.45;font-weight:600;}
.pick p{margin-top:6px;font-size:12.5px;color:var(--dim);line-height:1.6;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}

/* ---------- section shell ---------- */
.section{padding:56px 0 0;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:18px;
  padding-bottom:18px;
}
.section-head h2{font-size:clamp(21px,2.4vw,28px);}
.section-head p{margin-top:8px;color:var(--dim);font-size:14px;}
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;color:var(--primary);
  white-space:nowrap;
  transition:transform var(--ease),color var(--ease);
}
.link-more::after{content:"→";transition:transform var(--ease);}
.link-more:hover{color:#7ff3e4;transform:translateX(2px);}
.link-more:hover::after{transform:translateX(3px);}

.group{
  padding:34px 0 6px;
  border-top:1px solid var(--line);
}
.group:first-of-type{border-top:0;padding-top:10px;}
.group__head{
  display:flex;align-items:center;gap:14px;margin-bottom:20px;
}
.group__no{
  flex:none;
  font-size:13px;font-weight:700;letter-spacing:1px;
  color:var(--primary);
  padding:4px 10px;
  border:1px solid rgba(35,224,200,.34);
  border-radius:var(--r-sm);
  background:var(--primary-soft);
}
.group__head h2{font-size:clamp(19px,2.1vw,24px);}
.group__head span.desc{margin-left:auto;font-size:13px;color:var(--dim);}

.card-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
}
.card{
  display:flex;flex-direction:column;
  background:linear-gradient(180deg,rgba(17,23,49,.72),rgba(11,16,32,.9));
  border:1px solid var(--line);
  border-top:1px solid rgba(255,255,255,.06);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:rgba(35,224,200,.32);box-shadow:0 16px 40px rgba(0,0,0,.5);}
.card__media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0d1428;}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform .45s cubic-bezier(.2,.7,.3,1);}
.card:hover .card__media img{transform:scale(1.05);}
.card__media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 45%,rgba(5,7,15,.72));
  pointer-events:none;
}
.card__badge{position:absolute;left:12px;top:12px;z-index:2;}
.card__body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card__body h3{font-size:16px;line-height:1.45;}
.card__body p{
  color:var(--muted);font-size:13.5px;line-height:1.72;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card__meta{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:12.5px;color:var(--dim);
}
.card__meta .go{color:var(--primary);transition:transform var(--ease);}
.card:hover .card__meta .go{transform:translateX(3px);}

/* ---------- timeline ---------- */
.timeline-wrap{
  display:grid;
  grid-template-columns:minmax(0,.9fr) minmax(0,1.4fr);
  gap:34px;
  background:linear-gradient(180deg,rgba(17,23,49,.6),rgba(11,16,32,.86));
  border:1px solid var(--line);
  border-radius:var(--r-xl);
  padding:32px;
  box-shadow:var(--shadow);
}
.timeline-wrap h2{font-size:clamp(20px,2.2vw,26px);}
.timeline-wrap .lead{margin-top:14px;color:var(--muted);font-size:14.5px;line-height:1.85;}
.timeline{position:relative;padding-left:26px;}
.timeline::before{
  content:"";position:absolute;left:6px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,var(--primary),rgba(122,92,255,.5));
  border-radius:2px;
}
.timeline__item{position:relative;padding-bottom:22px;}
.timeline__item:last-child{padding-bottom:0;}
.timeline__item::before{
  content:"";position:absolute;left:-26px;top:6px;
  width:14px;height:14px;border-radius:50%;
  background:var(--panel);
  border:2px solid var(--primary);
  box-shadow:0 0 0 4px rgba(35,224,200,.1);
}
.timeline__item h3{font-size:15px;margin-bottom:6px;}
.timeline__item p{color:var(--dim);font-size:13.5px;line-height:1.75;}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px;}
.faq-item{
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  backdrop-filter:blur(10px);
  overflow:hidden;
  transition:border-color var(--ease),background var(--ease);
}
.faq-item:hover{border-color:rgba(35,224,200,.3);}
.faq-item[open]{border-color:rgba(35,224,200,.4);background:rgba(35,224,200,.05);}
.faq-item summary{
  display:flex;align-items:center;gap:14px;
  padding:18px 22px;
  font-size:15.5px;font-weight:600;
  cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{
  position:relative;flex:none;width:18px;height:18px;margin-left:auto;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--primary);border-radius:2px;
  transition:transform var(--ease),opacity var(--ease);
}
.faq-icon::before{left:1px;right:1px;top:8px;height:2px;}
.faq-icon::after{top:1px;bottom:1px;left:8px;width:2px;}
.faq-item[open] .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-item[open] .faq-icon{transform:rotate(180deg);}
.faq-answer{
  padding:0 22px 20px 22px;
  color:var(--muted);
  font-size:14.5px;
  line-height:1.85;
}

/* ---------- cta ---------- */
.cta-band{
  margin-top:60px;
  border-radius:var(--r-xl);
  padding:44px 40px;
  background:
    linear-gradient(115deg,rgba(35,224,200,.16),rgba(122,92,255,.22)),
    linear-gradient(180deg,#0c1226,#0a0f1e);
  border:1px solid rgba(35,224,200,.22);
  box-shadow:0 18px 46px rgba(0,0,0,.5);
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:26px 26px;
  pointer-events:none;
}
.cta-band__inner{position:relative;display:flex;flex-wrap:wrap;align-items:center;gap:24px;justify-content:space-between;}
.cta-band h2{font-size:clamp(21px,2.4vw,28px);}
.cta-band p{margin-top:10px;color:var(--muted);font-size:14.5px;max-width:64ch;}

/* ---------- footer ---------- */
.site-footer{
  margin-top:70px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(8,11,22,.6),rgba(5,7,15,.98));
  padding:52px 0 26px;
  position:relative;
  z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:34px;
}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand p{color:var(--dim);font-size:13.5px;line-height:1.85;max-width:38ch;}
.footer-col h4{font-size:14px;letter-spacing:.6px;margin-bottom:14px;color:var(--text);}
.footer-col li{margin-bottom:10px;}
.footer-col a{
  color:var(--dim);font-size:13.5px;
  transition:color var(--ease),transform var(--ease);
  display:inline-block;
}
.footer-col a:hover{color:var(--primary);transform:translateX(2px);}
.footer-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  color:var(--dim);font-size:12.5px;
}

/* ---------- responsive ---------- */
@media (max-width:1200px){
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;row-gap:28px;}
}
@media (max-width:1024px){
  .container{padding:0 24px;}
  .topic-hero__grid{grid-template-columns:minmax(0,1fr);}
  .timeline-wrap{grid-template-columns:minmax(0,1fr);gap:24px;}
  .channel-note{display:none;}
}
@media (max-width:834px){
  .search-box{min-width:0;flex:1;}
  .brand-bar .btn-login{display:none;}
}
@media (max-width:768px){
  body{font-size:15.5px;}
  .container{padding:0 16px;}
  .brand-bar{gap:12px;padding:13px 0;}
  .logo-text{font-size:15px;}
  .logo-mark{width:34px;height:34px;font-size:17px;}
  .nav-toggle{display:grid;}
  .channel-bar{display:none;position:sticky;top:0;}
  .channel-bar.is-open{display:block;}
  .channel-scroll{flex-direction:column;align-items:stretch;gap:0;padding:6px 0 10px;}
  .channel-link{padding:13px 4px;border-bottom:1px solid var(--line);font-size:15px;}
  .channel-link.is-active::after{left:4px;right:auto;width:26px;}
  .topic-hero{padding:26px 0 0;}
  .topic-feature__body{padding:20px 18px 24px;}
  .topic-feature__lead{font-size:14.5px;}
  .picks{padding:16px;}
  .pick{grid-template-columns:64px minmax(0,1fr);padding:12px 6px;}
  .pick__thumb{width:64px;height:64px;}
  .section{padding:40px 0 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:8px;}
  .group__head{flex-wrap:wrap;}
  .group__head span.desc{margin-left:0;width:100%;}
  .card-grid{grid-template-columns:minmax(0,1fr);gap:16px;}
  .timeline-wrap{padding:22px 18px;}
  .faq-item summary{padding:16px 16px;font-size:15px;}
  .faq-answer{padding:0 16px 18px;}
  .cta-band{margin-top:42px;padding:30px 20px;}
  .cta-band__inner{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:26px;}
  .footer-bottom{flex-direction:column;gap:6px;}
}
@media (max-width:520px){
  .search-box{display:none;}
  .logo-text{font-size:14px;line-height:1.3;white-space:normal;}
  .topic-feature h1{font-size:24px;}
  .btn{height:44px;padding:0 18px;font-size:14.5px;}
  .topic-feature__actions .btn{flex:1 1 100%;}
}