/* roulang page: index */
:root{
  --bg:#0A0D0B;
  --panel:#111612;
  --card:#151B16;
  --brand:#B6FF3B;
  --elec:#23E6D7;
  --signal:#FF4D8D;
  --text:#F4F7F1;
  --muted:#B7C2B5;
  --dim:#7E8A7D;
  --line:rgba(182,255,59,.18);
  --line-strong:rgba(182,255,59,.55);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:20px;
  --shadow:0 14px 40px rgba(0,0,0,.35);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.22;font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
::selection{background:rgba(182,255,59,.3);color:#fff}

.shell{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}
@media(max-width:1024px){.shell{padding:0 24px}}
@media(max-width:640px){.shell{padding:0 16px}}

.section{padding:104px 0;position:relative}
@media(max-width:1024px){.section{padding:76px 0}}
@media(max-width:640px){.section{padding:56px 0}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,13,11,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(35,230,215,.5),rgba(182,255,59,.75),rgba(35,230,215,.5),transparent);
}
.nav-shell{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;transition:height .25s ease}
.site-header.is-scrolled .nav-shell{height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:.01em;flex:none}
.brand-mark{
  width:26px;height:26px;border-radius:8px;flex:none;position:relative;
  background:linear-gradient(135deg,var(--brand),var(--elec));
  box-shadow:0 0 18px rgba(182,255,59,.35);
}
.brand-mark::after{content:"";position:absolute;inset:7px;border-radius:3px;background:#0A0D0B}
.brand-accent{color:var(--brand)}
.main-nav{display:flex;align-items:center;gap:4px}
.nav-link{
  position:relative;padding:10px 14px;border-radius:10px;font-size:15px;color:var(--muted);
  transition:color .2s,background .2s;white-space:nowrap;
}
.nav-link:hover{color:var(--brand)}
.nav-link.active{color:var(--brand);background:rgba(182,255,59,.09)}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 10px rgba(182,255,59,.85);
}
.nav-actions{display:flex;align-items:center;gap:12px;flex:none}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:12px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .18s,background .2s,border-color .2s,color .2s,box-shadow .22s;
  text-align:center;white-space:nowrap;
}
.btn:active{transform:scale(.98)}
.btn:focus-visible{outline:2px solid var(--elec);outline-offset:2px}
.btn-primary{background:var(--brand);color:#0A0D0B;padding:13px 26px;font-size:15.5px;box-shadow:0 10px 28px rgba(182,255,59,.14)}
.btn-primary:hover{background:#c9ff66;transform:translateY(-1px);box-shadow:0 14px 34px rgba(182,255,59,.26)}
.btn-ghost{background:transparent;border-color:rgba(35,230,215,.5);color:var(--elec);padding:13px 26px;font-size:15.5px}
.btn-ghost:hover{background:rgba(35,230,215,.1);border-color:var(--elec)}
.btn-sm{padding:9px 18px;font-size:14px;border-radius:10px}

.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;cursor:pointer;
  background:rgba(182,255,59,.07);border:1px solid var(--line);
  flex-direction:column;align-items:center;justify-content:center;gap:4px;padding:0;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand);border-radius:2px;transition:.2s}
.nav-toggle:hover{border-color:var(--line-strong)}
@media(max-width:1023px){
  .main-nav{display:none}
  .nav-toggle{display:flex}
  .nav-cta-desktop{display:none}
}

.drawer{position:fixed;inset:0;z-index:90;background:rgba(5,7,6,.72);opacity:0;visibility:hidden;transition:opacity .25s,visibility .25s}
.drawer.open{opacity:1;visibility:visible}
.drawer-panel{
  position:absolute;top:0;right:0;width:84%;max-width:340px;height:100%;
  background:var(--panel);border-left:1px solid var(--line);
  padding:22px 20px 32px;transform:translateX(100%);transition:transform .3s ease;
  display:flex;flex-direction:column;gap:6px;overflow-y:auto;
}
.drawer.open .drawer-panel{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.drawer-close{
  width:44px;height:44px;border-radius:10px;background:rgba(182,255,59,.07);
  border:1px solid var(--line);color:var(--brand);font-size:20px;cursor:pointer;line-height:1;
}
.drawer-close:hover{border-color:var(--line-strong)}
.drawer-link{
  display:block;padding:14px 16px;border-radius:12px;color:var(--muted);font-size:16px;
  border:1px solid transparent;transition:.2s;
}
.drawer-link:hover{color:var(--brand);background:rgba(182,255,59,.06)}
.drawer-link.active{
  color:var(--brand);background:rgba(182,255,59,.1);
  border-color:rgba(182,255,59,.4);box-shadow:0 0 22px rgba(182,255,59,.12) inset;
}
.drawer-cta{margin-top:16px}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:110px 0 96px;background:var(--bg)}
.hero-media{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;opacity:.34;
}
.hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,13,11,.8) 0%,rgba(10,13,11,.9) 52%,#0A0D0B 100%);
}
.hero-mesh{
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(182,255,59,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(182,255,59,.06) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(circle at 62% 30%,#000 0%,transparent 72%);
  mask-image:radial-gradient(circle at 62% 30%,#000 0%,transparent 72%);
}
.hero-inner{position:relative;z-index:2}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;border-radius:999px;font-size:13.5px;
  border:1px solid var(--line);background:rgba(182,255,59,.06);color:var(--brand);
  letter-spacing:.02em;
}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 8px var(--brand);display:block}
.hero h1{
  font-size:clamp(36px,4.6vw,56px);
  line-height:1.16;
  margin:22px 0 20px;
  max-width:15em;
  letter-spacing:-.02em;
}
.hero h1 em{font-style:normal;color:var(--brand)}
.hero-sub{color:var(--muted);font-size:17.5px;line-height:1.85;max-width:36em}
.hero-sub strong{color:var(--text);font-weight:600}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-note{margin-top:22px;color:var(--dim);font-size:14px;display:flex;flex-wrap:wrap;gap:18px}
.hero-note span{display:inline-flex;align-items:center;gap:7px}
.hero-note span::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--elec)}

.hero-panel{
  position:relative;border-radius:var(--r-lg);border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(21,27,22,.94),rgba(13,17,14,.9));
  padding:24px;box-shadow:var(--shadow);
}
.hero-panel::before{
  content:"";position:absolute;top:-1px;left:24px;right:24px;height:1px;
  background:linear-gradient(90deg,transparent,var(--brand),transparent);opacity:.7;
}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px}
.panel-title{font-size:14px;color:var(--muted);letter-spacing:.04em}
.live{display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--brand)}
.live i{width:7px;height:7px;border-radius:50%;background:var(--brand);display:block;animation:blip 1.8s infinite}
@keyframes blip{0%,100%{opacity:1;box-shadow:0 0 0 0 rgba(182,255,59,.6)}50%{opacity:.55;box-shadow:0 0 0 7px rgba(182,255,59,0)}}
.panel-row{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:13px 0;border-bottom:1px dashed rgba(182,255,59,.14);
}
.panel-row:last-child{border-bottom:0}
.panel-row .k{color:var(--muted);font-size:14.5px}
.panel-row .v{font-family:"DIN Alternate","Bebas Neue","Roboto Mono",monospace;color:var(--brand);font-size:19px;font-variant-numeric:tabular-nums}
.panel-row .v.alt{color:var(--elec)}
.panel-row .v.warn{color:var(--signal)}
.ring{
  position:absolute;right:-40px;top:-40px;width:180px;height:180px;border-radius:50%;
  border:1px solid rgba(35,230,215,.28);pointer-events:none;
}
.ring::after{content:"";position:absolute;inset:24px;border-radius:50%;border:1px solid rgba(182,255,59,.22)}
.ring::before{
  content:"";position:absolute;inset:-1px;border-radius:50%;
  border:1px solid transparent;border-top-color:var(--elec);
  animation:spin 6s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- section head ---------- */
.sec-head{margin-bottom:48px;max-width:760px}
.sec-tag{
  display:inline-block;font-size:13px;letter-spacing:.12em;color:var(--elec);
  text-transform:uppercase;margin-bottom:14px;
}
.sec-tag::before{content:"// ";color:var(--dim)}
.sec-head h2{font-size:clamp(24px,3vw,36px);line-height:1.24}
.sec-head p{color:var(--muted);margin-top:16px;font-size:16.5px}
.sec-head.oneline{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;max-width:none;flex-wrap:wrap}
.sec-head.oneline .more{color:var(--elec);font-size:15px;border-bottom:1px solid rgba(35,230,215,.4);padding-bottom:2px;transition:.2s}
.sec-head.oneline .more:hover{color:var(--brand);border-color:var(--brand)}

/* ---------- metrics ---------- */
.metric{
  padding:28px 22px;border-radius:18px;border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(21,27,22,.92),rgba(15,20,16,.78));
  transition:transform .25s,border-color .25s,box-shadow .25s;height:100%;
}
.metric:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow)}
.metric-num{
  font-family:"DIN Alternate","Bebas Neue","Roboto Mono",monospace;
  font-size:clamp(28px,3.4vw,42px);font-weight:700;color:var(--brand);
  font-variant-numeric:tabular-nums;line-height:1;letter-spacing:-.01em;
}
.metric-num span{font-size:.5em;margin-left:4px;color:var(--muted);font-weight:500}
.metric-name{margin-top:14px;font-size:15.5px;font-weight:600}
.metric-desc{margin-top:8px;color:var(--dim);font-size:14px;line-height:1.7}

/* ---------- bento ---------- */
.bento{
  border-radius:var(--r-lg);border:1px solid var(--line);background:var(--card);
  padding:28px;position:relative;overflow:hidden;height:100%;
  transition:transform .25s,border-color .25s,box-shadow .25s;
  display:flex;flex-direction:column;gap:14px;
}
.bento:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow)}
.bento h3{font-size:20px}
.bento p{color:var(--muted);font-size:15px;line-height:1.8}
.bento .link{margin-top:auto;color:var(--elec);font-size:14.5px;display:inline-flex;align-items:center;gap:6px}
.bento .link:hover{color:var(--brand)}
.bento-ico{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(182,255,59,.1);border:1px solid var(--line);color:var(--brand);
  font-family:"DIN Alternate","Roboto Mono",monospace;font-size:15px;font-weight:700;flex:none;
}
.bento-main{background:linear-gradient(155deg,rgba(24,32,25,.96),rgba(14,19,15,.9))}
.bento-main::after{
  content:"";position:absolute;right:-60px;bottom:-60px;width:200px;height:200px;border-radius:50%;
  background:radial-gradient(circle,rgba(35,230,215,.16),transparent 68%);
}
.bento-media{border-radius:14px;overflow:hidden;border:1px solid rgba(182,255,59,.14);position:relative}
.bento-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/9;transition:transform .4s}
.bento:hover .bento-media img{transform:scale(1.03)}
.bento-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(10,13,11,.7))}

/* ---------- compare ---------- */
.compare-card{
  border-radius:var(--r-lg);border:1px solid var(--line);background:var(--card);
  padding:28px;height:100%;
}
.compare-card.now{background:linear-gradient(160deg,rgba(23,31,24,.96),rgba(14,19,15,.9));border-color:rgba(182,255,59,.35)}
.compare-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:22px}
.compare-head h3{font-size:19px}
.chip{
  display:inline-flex;align-items:center;padding:5px 12px;border-radius:999px;
  font-size:12.5px;letter-spacing:.02em;border:1px solid var(--line);color:var(--muted);
}
.chip.brand{color:var(--brand);border-color:rgba(182,255,59,.45);background:rgba(182,255,59,.08)}
.chip.signal{color:var(--signal);border-color:rgba(255,77,141,.45);background:rgba(255,77,141,.08)}
.chip.elec{color:var(--elec);border-color:rgba(35,230,215,.4);background:rgba(35,230,215,.08)}
.compare-row{margin-bottom:20px}
.compare-row .lbl{display:flex;align-items:center;justify-content:space-between;font-size:14.5px;color:var(--muted);margin-bottom:9px}
.compare-row .lbl b{font-family:"DIN Alternate","Roboto Mono",monospace;color:var(--text);font-size:15px;font-variant-numeric:tabular-nums}
.bar{height:10px;border-radius:999px;background:rgba(244,247,241,.07);overflow:hidden}
.bar span{display:block;height:100%;border-radius:999px;width:0;transition:width 1.2s cubic-bezier(.2,.8,.2,1)}
.bar .fill-brand{background:linear-gradient(90deg,var(--elec),var(--brand));box-shadow:0 0 14px rgba(182,255,59,.35)}
.bar .fill-dim{background:linear-gradient(90deg,rgba(126,138,125,.55),rgba(126,138,125,.3))}
.bar .fill-signal{background:linear-gradient(90deg,rgba(255,77,141,.75),rgba(255,77,141,.45))}
.delta{color:var(--signal);font-size:14px;font-weight:600}
.delta.good{color:var(--brand)}

/* ---------- news ---------- */
.news-card{
  display:flex;flex-direction:column;gap:12px;padding:24px;height:100%;
  border-radius:18px;border:1px solid var(--line);background:var(--card);
  transition:transform .25s,border-color .25s,box-shadow .25s;
}
.news-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow)}
.news-card h3{
  font-size:17.5px;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card h3 a:hover{color:var(--brand)}
.news-card p{
  color:var(--muted);font-size:14.5px;line-height:1.78;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;padding-top:14px;border-top:1px dashed rgba(182,255,59,.14);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13.5px;color:var(--dim);
}
.news-meta .cat{color:var(--elec)}
.news-empty{
  border-radius:var(--r-lg);border:1px dashed var(--line);background:var(--card);
  padding:56px 28px;text-align:center;
}
.news-empty strong{display:block;font-size:18px;margin-bottom:10px}
.news-empty p{color:var(--muted);font-size:15px;margin-bottom:22px}

/* ---------- faq ---------- */
.faq-item{
  border:1px solid var(--line);border-radius:16px;background:var(--card);overflow:hidden;
  transition:border-color .25s,box-shadow .25s;
}
.faq-item + .faq-item{margin-top:14px}
.faq-item:hover{border-color:rgba(182,255,59,.35)}
.faq-item[open]{border-color:rgba(182,255,59,.45);box-shadow:0 0 0 1px rgba(182,255,59,.12),var(--shadow)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 22px;min-height:44px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  font-weight:600;font-size:16.5px;position:relative;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;
  background:rgba(182,255,59,.28);transition:background .25s,box-shadow .25s;
}
.faq-item[open] summary::before{background:var(--brand);box-shadow:0 0 12px rgba(182,255,59,.8)}
.faq-item summary::after{
  content:"";width:10px;height:10px;flex:none;margin-right:4px;
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:rotate(45deg);transition:transform .25s;
}
.faq-item[open] summary::after{transform:rotate(-135deg)}
.faq-body{padding:0 22px 22px 22px;color:var(--muted);font-size:15.5px;line-height:1.88}

/* ---------- form ---------- */
.cta-wrap{
  border-radius:24px;border:1px solid var(--line);overflow:hidden;position:relative;
  background:linear-gradient(150deg,rgba(22,30,23,.96),rgba(12,16,13,.94));
}
.cta-wrap::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--brand),var(--elec),transparent);
}
.cta-glow{
  position:absolute;right:-100px;top:-100px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(182,255,59,.14),transparent 65%);pointer-events:none;
}
.cta-list{margin-top:26px;display:flex;flex-direction:column;gap:12px}
.cta-list li{color:var(--muted);font-size:15px;display:flex;gap:10px;align-items:flex-start}
.cta-list li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);flex:none;margin-top:10px}
.field{display:block;margin-bottom:16px}
.field label{display:block;font-size:14px;color:var(--muted);margin-bottom:8px}
.field input,.field textarea{
  width:100%;background:#0E1310;border:1px solid var(--line);border-radius:12px;
  padding:13px 16px;font-size:15px;color:var(--text);transition:border-color .2s,box-shadow .2s;
}
.field input::placeholder,.field textarea::placeholder{color:#5F6A5E}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--elec);box-shadow:0 0 0 3px rgba(35,230,215,.15),0 0 18px rgba(35,230,215,.12);
}
.field textarea{min-height:118px;resize:vertical}
.form-tip{font-size:13px;color:var(--dim);margin-top:14px}
.form-msg{margin-top:14px;font-size:14px;color:var(--elec);min-height:22px}

/* ---------- footer ---------- */
.site-footer{
  position:relative;background:#080A09;border-top:1px solid var(--line);
  padding:68px 0 26px;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(35,230,215,.4),rgba(182,255,59,.6),transparent);
}
.foot-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;margin-bottom:16px}
.foot-desc{color:var(--muted);font-size:14.5px;line-height:1.8;max-width:34em}
.foot-title{font-size:14px;color:var(--text);font-weight:600;margin-bottom:16px;letter-spacing:.04em}
.foot-list li{margin-bottom:11px}
.foot-list a,.foot-list span{color:var(--dim);font-size:14.5px;transition:color .2s}
.foot-list a:hover{color:var(--brand)}
.foot-bottom{
  margin-top:52px;padding-top:24px;border-top:1px solid rgba(182,255,59,.12);
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  color:var(--dim);font-size:13.5px;
}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: article */
:root{
  --bg:#0A0D0B;
  --panel:#111612;
  --card:#151B16;
  --primary:#B6FF3B;
  --cyan:#23E6D7;
  --magenta:#FF4D8D;
  --text:#F4F7F1;
  --muted:#B7C2B5;
  --faint:#7E8A7D;
  --line:rgba(182,255,59,0.18);
  --line-strong:rgba(182,255,59,0.55);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:20px;
  --shadow:0 14px 40px rgba(0,0,0,0.35);
  --shadow-hover:0 22px 54px rgba(0,0,0,0.52);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  background-image:
    linear-gradient(rgba(182,255,59,0.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(182,255,59,0.035) 1px,transparent 1px);
  background-size:64px 64px;
}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
button,input,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px;}
.shell{width:100%;max-width:1240px;margin:0 auto;padding:0 32px;}
.section{padding:88px 0;}
.section-tight{padding:56px 0;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(10,13,11,0.9);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(182,255,59,0.75),rgba(35,230,215,0.6),transparent);
}
.nav-shell{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;}
.brand-mark{
  width:22px;height:22px;border-radius:7px;position:relative;flex:0 0 auto;
  background:linear-gradient(135deg,var(--primary),var(--cyan));
  box-shadow:0 0 16px rgba(182,255,59,0.3);
}
.brand-mark::after{content:"";position:absolute;inset:6px;border-radius:3px;background:var(--bg);}
.brand-text{font-size:19px;letter-spacing:0.4px;}
.brand-accent{color:var(--primary);}
.main-nav{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:10px 14px;border-radius:10px;font-size:15px;color:var(--muted);
  transition:color .22s,background .22s;
}
.nav-link:hover{color:var(--primary);background:rgba(182,255,59,0.07);}
.nav-link.active{
  color:var(--primary);
  background:rgba(182,255,59,0.1);
  box-shadow:inset 0 0 0 1px rgba(182,255,59,0.25);
}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 10px rgba(182,255,59,0.8);
}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  background:rgba(255,255,255,0.03);border:1px solid var(--line);
  flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;
  transition:border-color .2s,background .2s;
}
.nav-toggle:hover{border-color:var(--line-strong);background:rgba(182,255,59,0.06);}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:.22s;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:12px;border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;
  transition:transform .2s,box-shadow .2s,background .2s,color .2s,border-color .2s;
}
.btn:active{transform:scale(0.98);}
.btn-primary{background:var(--primary);color:#08110A;}
.btn-primary:hover{
  background:#cbff6b;transform:translateY(-1px);
  box-shadow:0 12px 28px rgba(182,255,59,0.26),0 0 0 3px rgba(35,230,215,0.3);
}
.btn-ghost{background:transparent;color:var(--cyan);border-color:rgba(35,230,215,0.45);}
.btn-ghost:hover{background:rgba(35,230,215,0.12);border-color:var(--cyan);transform:translateY(-1px);}
.btn-quiet{background:transparent;color:var(--muted);border:none;padding:10px 4px;}
.btn-quiet:hover{color:var(--primary);box-shadow:inset 0 -2px 0 0 var(--primary);}
.btn-sm{padding:10px 18px;font-size:14px;border-radius:10px;}

/* ============ 文章页结构 ============ */
.article-main{padding:26px 0 40px;}
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:14px;color:var(--faint);padding:6px 0 22px;
}
.crumbs a{transition:color .2s;}
.crumbs a:hover{color:var(--primary);}
.crumbs .sep{color:rgba(126,138,125,0.55);}
.crumbs .current{color:var(--muted);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-wrap{max-width:860px;}
.article-head{padding-bottom:32px;border-bottom:1px solid var(--line);margin-bottom:40px;}
.badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:999px;font-size:13px;
  color:var(--primary);background:rgba(182,255,59,0.09);
  border:1px solid rgba(182,255,59,0.3);
}
.badge .dot{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 8px var(--primary);}
.article-title{
  font-size:clamp(30px,4.4vw,46px);
  line-height:1.22;font-weight:800;letter-spacing:-0.4px;
  margin:20px 0 20px;color:var(--text);
}
.article-meta{display:flex;flex-wrap:wrap;gap:10px 24px;font-size:14px;color:var(--faint);}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:7px;}
.article-meta .meta-item i{
  width:6px;height:6px;border-radius:50%;background:var(--cyan);
  box-shadow:0 0 8px rgba(35,230,215,0.7);flex:0 0 auto;
}
.article-body{
  max-width:820px;color:var(--muted);font-size:17px;line-height:1.9;
}
.article-body > *:first-child{margin-top:0;}
.article-body h2{
  font-size:clamp(22px,2.6vw,28px);line-height:1.35;color:var(--text);
  margin:2.1em 0 0.8em;padding-left:16px;border-left:3px solid var(--primary);
}
.article-body h3{font-size:20px;line-height:1.4;color:var(--text);margin:1.7em 0 0.6em;}
.article-body h4{font-size:17px;color:var(--cyan);margin:1.5em 0 0.5em;}
.article-body p{margin:0 0 1.2em;}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:1.4em;}
.article-body li{margin:0.5em 0;}
.article-body ul li::marker{color:var(--primary);}
.article-body ol li::marker{color:var(--cyan);}
.article-body a{color:var(--cyan);border-bottom:1px solid rgba(35,230,215,0.45);}
.article-body a:hover{color:var(--primary);border-bottom-color:var(--line-strong);}
.article-body strong{color:var(--text);}
.article-body blockquote{
  margin:1.6em 0;padding:16px 22px;border-radius:0 12px 12px 0;
  border-left:3px solid var(--cyan);background:rgba(35,230,215,0.06);color:var(--muted);
}
.article-body img{border-radius:12px;margin:1.6em 0;}
.article-body figure{margin:1.6em 0;}
.article-body figcaption{font-size:13px;color:var(--faint);text-align:center;margin-top:10px;}
.article-body hr{border:0;height:1px;background:var(--line);margin:2.4em 0;}
.article-body code{
  font-family:"Roboto Mono",monospace;font-size:14px;
  background:rgba(182,255,59,0.09);color:var(--primary);
  padding:2px 7px;border-radius:6px;
}
.article-body pre{
  background:var(--panel);border:1px solid var(--line);border-radius:12px;
  padding:18px;overflow-x:auto;margin:1.6em 0;
}
.article-body pre code{background:none;padding:0;color:var(--muted);}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.article-body th{background:rgba(182,255,59,0.07);color:var(--text);font-weight:600;}

/* ============ 空态 ============ */
.empty-state{
  max-width:620px;padding:40px 32px;border-radius:var(--r-lg);
  background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow);
}
.empty-state .empty-title{font-size:24px;font-weight:700;color:var(--text);margin-bottom:12px;}
.empty-state p{color:var(--muted);font-size:16px;margin-bottom:22px;}

/* ============ 通用板块标题 ============ */
.sec-head{margin-bottom:36px;max-width:720px;}
.sec-kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;
  letter-spacing:2px;color:var(--cyan);text-transform:uppercase;margin-bottom:14px;
}
.sec-kicker::before{content:"";width:22px;height:1px;background:var(--cyan);}
.sec-title{font-size:clamp(24px,3vw,34px);line-height:1.25;font-weight:800;color:var(--text);}
.sec-sub{margin-top:12px;color:var(--faint);font-size:15px;}

/* ============ 卡片 ============ */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--shadow);transition:transform .25s,border-color .25s,box-shadow .25s;
  display:flex;flex-direction:column;overflow:hidden;
}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-hover);}
.card-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--panel);}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s;}
.card:hover .card-cover img{transform:scale(1.03);}
.card-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,13,11,0.15),rgba(10,13,11,0.75));
}
.card-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card-tag{
  align-self:flex-start;padding:4px 12px;border-radius:999px;font-size:12px;
  color:var(--cyan);border:1px solid rgba(35,230,215,0.35);background:rgba(35,230,215,0.07);
}
.card-title{font-size:18px;font-weight:700;line-height:1.45;color:var(--text);}
.card-text{font-size:14px;color:var(--faint);line-height:1.75;}
.card-link{margin-top:auto;font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px;}
.card-link::after{content:"→";transition:transform .25s;}
.card:hover .card-link::after{transform:translateX(4px);}

/* ============ 转化表单 ============ */
.cta{
  margin:72px 0 0;padding:44px;border-radius:var(--r-lg);
  background:linear-gradient(135deg,rgba(182,255,59,0.06),rgba(35,230,215,0.05)),var(--panel);
  border:1px solid var(--line);box-shadow:var(--shadow);
}
.cta-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:44px;}
.cta h2{font-size:clamp(22px,2.6vw,30px);line-height:1.3;font-weight:800;margin-bottom:14px;}
.cta p{color:var(--muted);font-size:15px;margin-bottom:22px;}
.cta-points{list-style:none;display:flex;flex-direction:column;gap:10px;}
.cta-points li{position:relative;padding-left:20px;font-size:14px;color:var(--faint);}
.cta-points li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 8px rgba(182,255,59,0.7);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:14px;color:var(--muted);}
.field input,.field textarea{
  background:rgba(255,255,255,0.03);border:1px solid var(--line);border-radius:12px;
  padding:12px 14px;color:var(--text);font-size:15px;transition:border-color .2s,box-shadow .2s,background .2s;
  width:100%;
}
.field textarea{min-height:108px;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:rgba(126,138,125,0.8);}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--cyan);background:rgba(35,230,215,0.05);
  box-shadow:0 0 0 3px rgba(35,230,215,0.16);
}
.form-note{margin-top:14px;font-size:13px;color:var(--faint);min-height:20px;}
.form-note.ok{color:var(--primary);}
.form-note.err{color:var(--magenta);}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:96px;background:#080B09;border-top:1px solid var(--line);position:relative;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(182,255,59,0.7),rgba(35,230,215,0.55),transparent);
}
.site-footer .inner{padding:64px 0 0;}
.foot-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;margin-bottom:16px;}
.foot-desc{font-size:14px;color:var(--faint);line-height:1.8;max-width:340px;}
.foot-title{font-size:15px;font-weight:700;color:var(--text);margin-bottom:16px;}
.foot-list{list-style:none;display:flex;flex-direction:column;gap:10px;}
.foot-list a,.foot-list span{font-size:14px;color:var(--faint);transition:color .2s;}
.foot-list a:hover{color:var(--primary);}
.foot-bottom{
  margin-top:52px;padding:22px 0;border-top:1px solid rgba(182,255,59,0.1);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:var(--faint);
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .shell{padding:0 24px;}
  .section{padding:64px 0;}
  .cta-grid{grid-template-columns:1fr;gap:32px;}
  .cta{padding:32px;}
}
@media (max-width:1023px){
  .nav-shell{height:64px;}
  .nav-cta-desktop{display:none;}
  .nav-toggle{display:flex;}
  .main-nav{
    position:fixed;left:0;right:0;top:64px;
    flex-direction:column;align-items:stretch;gap:4px;
    background:var(--panel);padding:16px 20px 26px;
    border-bottom:1px solid var(--line);
    transform:translateY(-14px);opacity:0;pointer-events:none;
    transition:transform .24s ease,opacity .24s ease;z-index:65;
    box-shadow:0 24px 48px rgba(0,0,0,0.5);
  }
  .main-nav.is-open{transform:none;opacity:1;pointer-events:auto;}
  .nav-link{padding:13px 14px;font-size:16px;}
  .nav-link.active::after{left:14px;right:auto;width:22px;bottom:8px;}
}
@media (max-width:768px){
  .section{padding:56px 0;}
  .article-title{font-size:clamp(26px,7vw,32px);}
  .article-body{font-size:16px;}
  .crumbs .current{max-width:100%;white-space:normal;}
}
@media (max-width:640px){
  .shell{padding:0 16px;}
  .form-grid{grid-template-columns:1fr;}
  .cta{padding:26px 20px;}
  .foot-bottom{flex-direction:column;gap:6px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category1 */
:root{
  --brand:#B6FF3B;
  --cyan:#23E6D7;
  --magenta:#FF4D8D;
  --bg:#0A0D0B;
  --panel:#111612;
  --card:#151B16;
  --text:#F4F7F1;
  --muted:#B7C2B5;
  --dim:#7E8A7D;
  --line:rgba(182,255,59,.18);
  --line-hi:rgba(182,255,59,.55);
  --line-cyan:rgba(35,230,215,.35);
  --r-sm:12px;
  --r-md:16px;
  --r-lg:20px;
  --shadow:0 14px 40px rgba(0,0,0,.35);
  --shadow-hi:0 18px 48px rgba(0,0,0,.5);
  --maxw:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none;transition:color .22s ease}
button,input,textarea,select{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.22;font-weight:800;letter-spacing:.2px}
p{margin:0}
h1{font-size:clamp(32px,4.2vw,52px)}
h2{font-size:clamp(24px,3vw,36px)}
h3{font-size:clamp(19px,2vw,23px)}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}
.shell{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 32px}
.section{padding:104px 0}
.section-tight{padding:76px 0}
.mono{font-family:"DIN Alternate","Bebas Neue","Roboto Mono",monospace;font-variant-numeric:tabular-nums}

/* ============ header / nav ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,13,11,.88);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:background .25s ease;
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,rgba(182,255,59,0),rgba(182,255,59,.75),rgba(35,230,215,.75),rgba(182,255,59,0));
  pointer-events:none;
}
.nav-shell{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:.6px}
.brand-mark{
  width:13px;height:13px;border-radius:4px;background:var(--brand);
  box-shadow:0 0 14px rgba(182,255,59,.65);
  position:relative;flex-shrink:0;
}
.brand-mark::after{
  content:"";position:absolute;inset:4px;border-radius:2px;background:#0A0D0B;
}
.brand-text{color:var(--text)}
.brand-accent{color:var(--brand)}
.brand:hover .brand-text{color:var(--brand)}
.main-nav{display:flex;align-items:center;gap:4px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  min-height:44px;padding:10px 15px;border-radius:10px;
  font-size:15px;color:var(--muted);white-space:nowrap;
  transition:color .22s ease,background .22s ease;
}
.nav-link:hover{color:var(--brand)}
.nav-link.active{color:var(--brand);background:rgba(182,255,59,.08)}
.nav-link.active::after{
  content:"";position:absolute;left:15px;right:15px;bottom:5px;height:2px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 10px rgba(182,255,59,.85);
}
.nav-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:11px;
  border:1px solid var(--line);background:rgba(21,27,22,.6);
  flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;
  transition:border-color .22s ease,background .22s ease;
}
.nav-toggle:hover{border-color:var(--line-hi);background:rgba(182,255,59,.08)}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform .25s ease,opacity .2s ease}
.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)}

.mobile-drawer{
  position:fixed;left:0;right:0;top:72px;bottom:0;z-index:55;
  background:var(--panel);border-top:1px solid var(--line);
  padding:22px 24px 40px;overflow-y:auto;
  transform:translateY(-10px);opacity:0;pointer-events:none;
  transition:opacity .25s ease,transform .25s ease;
}
.mobile-drawer.open{opacity:1;transform:translateY(0);pointer-events:auto}
.drawer-nav{display:flex;flex-direction:column;gap:6px;margin-bottom:22px}
.drawer-nav a{
  display:flex;align-items:center;min-height:52px;padding:12px 16px;border-radius:12px;
  color:var(--muted);font-size:16px;border:1px solid transparent;
}
.drawer-nav a:hover{color:var(--brand);border-color:var(--line)}
.drawer-nav a.active{color:var(--brand);background:rgba(182,255,59,.09);border-color:var(--line-hi)}

/* ============ buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:13px 26px;border-radius:12px;
  font-size:15px;font-weight:700;letter-spacing:.3px;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,background .22s ease,box-shadow .22s ease,color .22s ease,border-color .22s ease;
}
.btn-sm{min-height:44px;padding:10px 20px;font-size:14px}
.btn-primary{background:var(--brand);color:#0A0D0B}
.btn-primary:hover{
  background:#c8ff63;transform:translateY(-1px);
  box-shadow:0 0 0 3px rgba(35,230,215,.22),0 12px 28px rgba(182,255,59,.18);
}
.btn-outline{background:transparent;border-color:rgba(35,230,215,.5);color:var(--cyan)}
.btn-outline:hover{background:rgba(35,230,215,.12);border-color:var(--cyan);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--muted);padding-left:8px;padding-right:8px}
.btn-ghost:hover{color:var(--brand)}
.btn:active{transform:scale(.98)}
.w-full{width:100%}

/* ============ decorative ============ */
.grid-bg{position:relative;overflow:hidden}
.grid-bg::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.45;
  background-image:linear-gradient(rgba(182,255,59,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(182,255,59,.06) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 90% 70% at 30% 20%,#000 20%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse 90% 70% at 30% 20%,#000 20%,transparent 78%);
}
.divider{height:1px;background:linear-gradient(90deg,rgba(182,255,59,0),rgba(182,255,59,.35),rgba(35,230,215,.25),rgba(182,255,59,0))}

/* ============ breadcrumb / badges ============ */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:9px;font-size:14px;color:var(--dim);margin-bottom:20px}
.breadcrumb a{color:var(--dim)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{opacity:.45}
.breadcrumb .cur{color:var(--muted)}
.badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;
  border:1px solid var(--line);background:rgba(182,255,59,.07);color:var(--brand);
}
.badge-cyan{border-color:rgba(35,230,215,.35);background:rgba(35,230,215,.09);color:var(--cyan)}
.badge-magenta{border-color:rgba(255,77,141,.35);background:rgba(255,77,141,.1);color:var(--magenta)}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:2.4px;
  color:var(--cyan);text-transform:uppercase;margin-bottom:14px;
}

/* ============ hero ============ */
.hero{
  position:relative;
  background-image:linear-gradient(100deg,rgba(10,13,11,.94) 0%,rgba(10,13,11,.86) 48%,rgba(10,13,11,.94) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.06fr .94fr;gap:56px;align-items:center;
  padding:84px 0 88px;
}
.hero h1{margin-bottom:20px}
.hero h1 .accent{color:var(--brand)}
.lead{font-size:17px;color:var(--muted);max-width:620px;margin-bottom:30px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-points{display:flex;flex-wrap:wrap;gap:12px 26px}
.hero-points li{position:relative;padding-left:20px;font-size:15px;color:var(--muted)}
.hero-points li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 8px rgba(182,255,59,.7);
}
.hero-panel{
  position:relative;background:rgba(21,27,22,.86);
  border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--shadow);backdrop-filter:blur(6px);
}
.panel-head{
  display:flex;align-items:center;gap:10px;font-size:14px;font-weight:700;
  color:var(--muted);padding-bottom:16px;border-bottom:1px solid var(--line);margin-bottom:8px;
}
.panel-head .dot{width:9px;height:9px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px rgba(182,255,59,.9);animation:pulse 2.2s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.55;transform:scale(.82)}}
.panel-list li{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:14px 0;border-bottom:1px dashed rgba(182,255,59,.14);font-size:15px;color:var(--muted);
}
.panel-list li:last-child{border-bottom:0}
.panel-list strong{font-size:22px;color:var(--text);font-family:"DIN Alternate","Roboto Mono",monospace;font-variant-numeric:tabular-nums}
.panel-note{margin-top:16px;font-size:13px;color:var(--dim);line-height:1.7}
.pulse-ring{
  position:absolute;right:-26px;top:-26px;width:118px;height:118px;border-radius:50%;
  border:1px solid rgba(35,230,215,.3);pointer-events:none;
}
.pulse-ring::after{
  content:"";position:absolute;inset:20px;border-radius:50%;
  border:1px solid rgba(182,255,59,.28);
}

/* ============ section head ============ */
.sec-head{max-width:760px;margin-bottom:48px}
.sec-head p{color:var(--muted);margin-top:16px;font-size:16px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}

/* ============ stat cards ============ */
.stat-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px 22px;position:relative;overflow:hidden;transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.stat-card::before{
  content:"";position:absolute;left:0;top:0;width:3px;height:100%;
  background:linear-gradient(180deg,var(--brand),rgba(182,255,59,0));
}
.stat-card:hover{transform:translateY(-4px);border-color:var(--line-hi);box-shadow:var(--shadow)}
.stat-num{
  display:block;font-size:34px;font-weight:800;color:var(--brand);
  font-family:"DIN Alternate","Roboto Mono",monospace;font-variant-numeric:tabular-nums;
  line-height:1.1;margin-bottom:8px;
}
.stat-name{font-size:15px;font-weight:700;color:var(--text);margin-bottom:6px}
.stat-desc{font-size:13.5px;color:var(--dim);line-height:1.75}

/* ============ cards ============ */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:30px;position:relative;overflow:hidden;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.card:hover{transform:translateY(-4px);border-color:var(--line-hi);box-shadow:var(--shadow-hi)}
.card-title{font-size:20px;font-weight:800;margin-bottom:12px}
.card-text{font-size:15.5px;color:var(--muted);line-height:1.85}
.card-media{
  border-radius:14px;overflow:hidden;border:1px solid var(--line);
  margin-bottom:22px;position:relative;aspect-ratio:16/9;background:#0E120F;
}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.card:hover .card-media img{transform:scale(1.03)}
.card-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,13,11,.05),rgba(10,13,11,.55));
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.tag{
  font-size:12.5px;padding:5px 12px;border-radius:999px;
  border:1px solid rgba(35,230,215,.3);color:var(--cyan);background:rgba(35,230,215,.07);
}
.tag-green{border-color:var(--line);color:var(--brand);background:rgba(182,255,59,.07)}
.tag-magenta{border-color:rgba(255,77,141,.32);color:var(--magenta);background:rgba(255,77,141,.08)}

.list-check{margin-top:20px;display:flex;flex-direction:column;gap:10px}
.list-check li{position:relative;padding-left:20px;font-size:15px;color:var(--muted)}
.list-check li::before{
  content:"";position:absolute;left:0;top:10px;width:7px;height:7px;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 8px rgba(35,230,215,.7);
}
.card-link{display:inline-flex;align-items:center;gap:6px;margin-top:22px;font-size:14.5px;font-weight:700;color:var(--brand)}
.card-link::after{content:"→";transition:transform .22s ease}
.card-link:hover::after{transform:translateX(4px)}

/* ============ steps ============ */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;position:relative}
.step{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px 20px;transition:transform .25s ease,border-color .25s ease,background .25s ease;
}
.step:hover{transform:translateY(-4px);border-color:var(--line-hi);background:#131A14}
.step-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;margin-bottom:16px;
  background:rgba(182,255,59,.1);border:1px solid var(--line);
  color:var(--brand);font-weight:800;font-size:14px;
  font-family:"DIN Alternate","Roboto Mono",monospace;
}
.step h3{font-size:17px;margin-bottom:10px}
.step p{font-size:14px;color:var(--dim);line-height:1.8}

/* ============ scenario list ============ */
.scenario{
  display:flex;gap:18px;align-items:flex-start;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px;transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.scenario:hover{border-color:var(--line-hi);transform:translateY(-3px);box-shadow:var(--shadow)}
.scenario-icon{
  flex-shrink:0;width:44px;height:44px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(35,230,215,.1);border:1px solid rgba(35,230,215,.3);
  color:var(--cyan);font-weight:800;font-size:15px;
}
.scenario h3{font-size:17px;margin-bottom:8px}
.scenario p{font-size:14.5px;color:var(--dim);line-height:1.8}

/* ============ progress compare ============ */
.compare-row{margin-bottom:26px}
.compare-top{display:flex;justify-content:space-between;align-items:baseline;gap:12px;margin-bottom:10px;font-size:15px;color:var(--muted)}
.compare-top strong{color:var(--text);font-size:17px}
.bar{height:10px;border-radius:999px;background:rgba(255,255,255,.06);overflow:hidden;position:relative}
.bar span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,rgba(182,255,59,.85),rgba(35,230,215,.85))}
.bar.alt span{background:linear-gradient(90deg,rgba(255,77,141,.8),rgba(255,77,141,.4))}
.diff-tag{font-size:13px;color:var(--magenta);border:1px solid rgba(255,77,141,.35);border-radius:999px;padding:3px 11px;background:rgba(255,77,141,.08)}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;transition:border-color .25s ease,background .25s ease;
}
.faq-item:hover{border-color:var(--line-hi)}
.faq-item.open{border-color:rgba(182,255,59,.45);background:#131A14}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;
  min-height:60px;padding:18px 22px;background:none;border:0;cursor:pointer;
  text-align:left;font-size:16px;font-weight:700;color:var(--text);
}
.faq-q .mark{flex-shrink:0;width:4px;height:20px;border-radius:3px;background:rgba(182,255,59,.35);transition:background .25s ease,box-shadow .25s ease}
.faq-item.open .faq-q .mark{background:var(--brand);box-shadow:0 0 10px rgba(182,255,59,.8)}
.faq-q .sign{margin-left:auto;flex-shrink:0;color:var(--brand);font-size:20px;font-weight:400;transition:transform .28s ease}
.faq-item.open .faq-q .sign{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-a p{padding:0 22px 22px 42px;font-size:15px;color:var(--muted);line-height:1.9}

/* ============ CTA / form ============ */
.cta-wrap{
  position:relative;border:1px solid var(--line);border-radius:24px;
  background:linear-gradient(135deg,rgba(21,27,22,.96),rgba(17,22,18,.98));
  padding:52px;overflow:hidden;
}
.cta-wrap::before{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(182,255,59,.14),transparent 66%);pointer-events:none;
}
.cta-grid{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:start}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;color:var(--muted);margin-bottom:8px;font-weight:600}
.field input,.field textarea{
  width:100%;background:#0E120F;border:1px solid var(--line);border-radius:12px;
  padding:13px 16px;font-size:15px;color:var(--text);min-height:50px;
  transition:border-color .22s ease,box-shadow .22s ease,background .22s ease;
}
.field textarea{min-height:118px;resize:vertical;line-height:1.75}
.field input::placeholder,.field textarea::placeholder{color:#6C766B}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--cyan);background:#0F1512;
  box-shadow:0 0 0 3px rgba(35,230,215,.16);
}
.form-note{font-size:13px;color:var(--dim);margin-top:14px;line-height:1.75}
.form-msg{margin-top:16px;font-size:14px;color:var(--brand);display:none}
.form-msg.show{display:block}

/* ============ footer ============ */
.site-footer{
  background:#080B09;border-top:1px solid rgba(182,255,59,.14);
  padding:72px 0 28px;position:relative;margin-top:0;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,rgba(182,255,59,0),rgba(182,255,59,.7),rgba(35,230,215,.6),rgba(182,255,59,0));
}
.foot-brand{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:800;margin-bottom:16px}
.foot-desc{font-size:14.5px;color:var(--dim);line-height:1.85;max-width:340px}
.foot-title{font-size:15px;font-weight:700;color:var(--text);margin-bottom:18px}
.foot-list li{margin-bottom:11px;font-size:14.5px;color:var(--dim)}
.foot-list a{color:var(--dim)}
.foot-list a:hover{color:var(--brand)}
.foot-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(182,255,59,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13.5px;color:#6C766B;
}

/* ============ responsive ============ */
@media (max-width:1023px){
  .shell{padding:0 24px}
  .main-nav{display:none}
  .nav-toggle{display:flex}
  .nav-cta-desktop{display:none}
  .hero-grid{grid-template-columns:1fr;gap:40px;padding:64px 0 68px}
  .section{padding:76px 0}
  .steps{grid-template-columns:repeat(2,1fr)}
  .cta-grid{grid-template-columns:1fr;gap:36px}
  .cta-wrap{padding:38px 28px}
  .pulse-ring{display:none}
}
@media (max-width:767px){
  body{font-size:16px}
  .shell{padding:0 16px}
  .nav-shell{height:64px}
  .mobile-drawer{top:64px}
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
  .hero-grid{padding:48px 0 56px}
  .sec-head{margin-bottom:32px}
  .card{padding:24px}
  .stat-num{font-size:28px}
  .steps{grid-template-columns:1fr}
  .faq-q{padding:16px 16px;font-size:15.5px}
  .faq-a p{padding:0 16px 20px 36px}
  .cta-wrap{padding:30px 20px;border-radius:20px}
  .foot-bottom{flex-direction:column;gap:8px}
  .hero-cta .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
    --primary:#B6FF3B;
    --primary-dim:rgba(182,255,59,.55);
    --primary-line:rgba(182,255,59,.18);
    --cyan:#23E6D7;
    --magenta:#FF4D8D;
    --bg:#0A0D0B;
    --surface:#111612;
    --card:#151B16;
    --text:#F4F7F1;
    --text-2:#B7C2B5;
    --text-3:#7E8A7D;
    --radius-sm:10px;
    --radius-md:14px;
    --radius-lg:20px;
    --shadow-card:0 14px 40px rgba(0,0,0,.35);
    --shadow-hover:0 22px 54px rgba(0,0,0,.5);
    --font-num:"DIN Alternate","Bebas Neue","Roboto Mono",monospace;
    --shell:1240px;
  }
  *,*::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:"Noto Sans SC","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
    font-size:16px;
    line-height:1.8;
    letter-spacing:.01em;
    overflow-x:hidden;
  }
  img{max-width:100%;display:block;border:0;}
  a{color:inherit;text-decoration:none;transition:color .22s ease,opacity .22s ease;}
  button,input,textarea,select{font:inherit;color:inherit;}
  h1,h2,h3,h4{margin:0;line-height:1.2;font-weight:700;letter-spacing:0;}
  p{margin:0;}
  ul{margin:0;padding:0;list-style:none;}
  ::selection{background:rgba(182,255,59,.85);color:#0A0D0B;}
  :focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px;}

  .shell{
    width:100%;
    max-width:var(--shell);
    margin:0 auto;
    padding-left:32px;
    padding-right:32px;
  }
  .tnum{font-family:var(--font-num);font-variant-numeric:tabular-nums;letter-spacing:.02em;}

  /* ---------- 头部导航 ---------- */
  .site-header{
    position:sticky;
    top:0;
    z-index:80;
    background:rgba(10,13,11,.92);
    backdrop-filter:blur(12px);
    border-bottom:1px solid transparent;
    transition:background .25s ease,border-color .25s ease;
  }
  .site-header::after{
    content:"";
    position:absolute;
    left:0;right:0;bottom:-1px;
    height:1px;
    background:linear-gradient(90deg,rgba(35,230,215,0) 0%,rgba(35,230,215,.65) 22%,rgba(182,255,59,.75) 50%,rgba(35,230,215,.6) 78%,rgba(35,230,215,0) 100%);
    pointer-events:none;
  }
  .site-header.is-scrolled{background:rgba(10,13,11,.98);}
  .nav-shell{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:24px;
    height:72px;
    transition:height .25s ease;
  }
  .site-header.is-scrolled .nav-shell{height:64px;}
  .brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:700;letter-spacing:.02em;white-space:nowrap;}
  .brand-mark{
    width:22px;height:22px;border-radius:7px;
    background:linear-gradient(135deg,var(--primary) 0%,var(--cyan) 100%);
    box-shadow:0 0 0 1px rgba(182,255,59,.35) inset;
    position:relative;flex:none;
  }
  .brand-mark::after{
    content:"";position:absolute;inset:6px 5px;
    border-left:2px solid #0A0D0B;border-bottom:2px solid #0A0D0B;transform:skewX(-12deg);
  }
  .brand-text{color:var(--text);}
  .brand-accent{color:var(--primary);}
  .main-nav{display:flex;align-items:center;gap:6px;}
  .nav-link{
    position:relative;
    display:inline-flex;align-items:center;
    height:44px;padding:0 15px;
    font-size:15px;color:var(--text-2);
    border-radius:var(--radius-sm);
    transition:color .2s ease,background .2s ease;
  }
  .nav-link:hover{color:var(--primary);background:rgba(182,255,59,.06);}
  .nav-link.active{color:var(--primary);background:rgba(182,255,59,.09);box-shadow:0 0 0 1px rgba(182,255,59,.22) inset;}
  .nav-link.active::after{
    content:"";position:absolute;left:15px;right:15px;bottom:6px;height:2px;border-radius:2px;
    background:var(--primary);box-shadow:0 0 10px rgba(182,255,59,.7);
  }
  .nav-actions{display:flex;align-items:center;gap:12px;}
  .nav-toggle{
    display:none;
    width:44px;height:44px;border:1px solid var(--primary-line);
    background:transparent;border-radius:var(--radius-sm);cursor:pointer;
    flex-direction:column;align-items:center;justify-content:center;gap:5px;
  }
  .nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform .25s ease,opacity .25s ease;}
  .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);}
  .nav-drawer{
    position:fixed;top:0;right:0;bottom:0;
    width:min(320px,86vw);
    background:var(--surface);
    border-left:1px solid var(--primary-line);
    z-index:120;
    padding:88px 24px 32px;
    transform:translateX(102%);
    transition:transform .3s ease;
    display:flex;flex-direction:column;gap:8px;
    box-shadow:-24px 0 60px rgba(0,0,0,.55);
  }
  .nav-drawer.is-open{transform:translateX(0);}
  .nav-drawer .drawer-title{font-size:13px;color:var(--text-3);letter-spacing:.12em;margin-bottom:6px;}
  .nav-drawer a{
    display:flex;align-items:center;
    min-height:48px;padding:0 14px;
    border-radius:var(--radius-sm);
    color:var(--text-2);
    border:1px solid transparent;
    font-size:16px;
  }
  .nav-drawer a:hover{color:var(--primary);border-color:var(--primary-line);}
  .nav-drawer a.active{color:var(--primary);background:rgba(182,255,59,.08);border-color:rgba(182,255,59,.35);box-shadow:0 0 18px rgba(182,255,59,.12);}
  .drawer-close{
    position:absolute;top:18px;right:18px;
    width:44px;height:44px;border-radius:var(--radius-sm);
    border:1px solid var(--primary-line);background:transparent;color:var(--text);
    cursor:pointer;font-size:20px;line-height:1;
  }
  .drawer-close:hover{border-color:var(--primary-dim);color:var(--primary);}
  .drawer-mask{
    position:fixed;inset:0;background:rgba(4,6,5,.68);
    z-index:110;opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease;
  }
  .drawer-mask.is-open{opacity:1;visibility:visible;}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:48px;padding:0 24px;
    border-radius:var(--radius-sm);
    font-size:15px;font-weight:600;
    border:1px solid transparent;cursor:pointer;
    transition:transform .2s ease,box-shadow .24s ease,background .24s ease,color .24s ease,border-color .24s ease;
    white-space:nowrap;
  }
  .btn:active{transform:scale(.98);}
  .btn-sm{min-height:42px;padding:0 18px;font-size:14px;}
  .btn-primary{background:var(--primary);color:#0A0D0B;box-shadow:0 10px 26px rgba(182,255,59,.18);}
  .btn-primary:hover{background:#C9FF63;transform:translateY(-1px);box-shadow:0 14px 34px rgba(182,255,59,.3),0 0 0 3px rgba(35,230,215,.22);}
  .btn-ghost{background:transparent;color:var(--cyan);border-color:rgba(35,230,215,.45);}
  .btn-ghost:hover{background:rgba(35,230,215,.12);color:#7DF3E9;border-color:rgba(35,230,215,.8);}
  .btn-text{background:transparent;color:var(--text-2);padding:0 4px;min-height:44px;position:relative;}
  .btn-text::after{content:"";position:absolute;left:4px;right:4px;bottom:10px;height:1px;background:currentColor;transform:scaleX(0);transform-origin:left;transition:transform .25s ease;}
  .btn-text:hover{color:var(--primary);}
  .btn-text:hover::after{transform:scaleX(1);box-shadow:0 0 8px rgba(182,255,59,.8);}

  /* ---------- 通用区块 ---------- */
  .section{padding:104px 0;position:relative;}
  .section-alt{background:var(--surface);}
  .section-head{max-width:760px;margin-bottom:52px;}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;letter-spacing:.16em;color:var(--primary);
    padding:6px 14px;border-radius:999px;
    border:1px solid var(--primary-line);
    background:rgba(182,255,59,.05);
    margin-bottom:18px;
  }
  .eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 8px var(--cyan);}
  .h1{
    font-size:clamp(36px,4.6vw,56px);
    line-height:1.16;
    letter-spacing:-.01em;
  }
  .h2{font-size:clamp(24px,3vw,36px);line-height:1.22;}
  .h3{font-size:clamp(19px,2vw,23px);line-height:1.3;}
  .lead{font-size:17px;line-height:1.9;color:var(--text-2);}
  .muted{color:var(--text-3);font-size:14px;}
  .accent{color:var(--primary);}
  .accent-cyan{color:var(--cyan);}
  .divider{height:1px;background:linear-gradient(90deg,transparent,rgba(182,255,59,.3),transparent);border:0;margin:0;}

  /* ---------- 面包屑 ---------- */
  .breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);}
  .breadcrumb a{color:var(--text-2);}
  .breadcrumb a:hover{color:var(--primary);}
  .breadcrumb .sep{color:rgba(126,138,125,.7);}
  .breadcrumb .current{color:var(--text-3);}

  /* ---------- Hero ---------- */
  .hero{
    position:relative;
    overflow:hidden;
    border-bottom:1px solid var(--primary-line);
  }
  .hero-bg{
    position:absolute;inset:0;
    background-image:url('/assets/images/backpic/back-2.png');
    background-size:cover;background-position:center;
    opacity:.9;
  }
  .hero-bg::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(120deg,rgba(10,13,11,.94) 0%,rgba(10,13,11,.86) 45%,rgba(10,13,11,.72) 100%);
  }
  .hero-grid{
    position:absolute;inset:0;
    background-image:linear-gradient(rgba(182,255,59,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(182,255,59,.055) 1px,transparent 1px);
    background-size:64px 64px;
    mask-image:radial-gradient(ellipse at 30% 40%,#000 20%,transparent 78%);
    -webkit-mask-image:radial-gradient(ellipse at 30% 40%,#000 20%,transparent 78%);
  }
  .hero-inner{position:relative;padding:96px 0 104px;}
  .hero-gridwrap{
    display:grid;
    grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
    gap:56px;
    align-items:center;
    margin-top:28px;
  }
  .hero-copy .h1{max-width:15em;}
  .hero-sub{margin-top:22px;max-width:36em;}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
  .hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px;}
  .tag{
    display:inline-flex;align-items:center;gap:6px;
    padding:6px 13px;border-radius:999px;
    font-size:13px;color:var(--text-2);
    border:1px solid var(--primary-line);
    background:rgba(21,27,22,.72);
  }
  .tag-cyan{border-color:rgba(35,230,215,.35);color:#9FF2EA;}
  .tag-magenta{border-color:rgba(255,77,141,.45);color:#FFA3C2;}

  /* 数据小看板 */
  .board{
    background:rgba(17,22,18,.92);
    border:1px solid var(--primary-line);
    border-radius:var(--radius-lg);
    padding:26px 26px 22px;
    box-shadow:var(--shadow-card);
    position:relative;
    overflow:hidden;
  }
  .board::before{
    content:"";position:absolute;left:0;top:0;height:2px;width:64%;
    background:linear-gradient(90deg,var(--primary),rgba(35,230,215,.4),transparent);
  }
  .board-head{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-bottom:18px;border-bottom:1px dashed rgba(182,255,59,.2);}
  .board-title{font-size:15px;font-weight:600;color:var(--text);}
  .pulse{display:inline-flex;align-items:center;gap:8px;font-size:12px;color:var(--text-3);}
  .pulse-dot{width:8px;height:8px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 0 rgba(182,255,59,.55);animation:pulse 2.4s infinite;}
  @keyframes pulse{
    0%{box-shadow:0 0 0 0 rgba(182,255,59,.55);}
    70%{box-shadow:0 0 0 12px rgba(182,255,59,0);}
    100%{box-shadow:0 0 0 0 rgba(182,255,59,0);}
  }
  .board-rows{padding-top:18px;display:grid;gap:14px;}
  .board-row{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:12px;}
  .board-row .label{font-size:14px;color:var(--text-2);white-space:nowrap;}
  .board-row .value{font-size:18px;color:var(--primary);}
  .bar{height:6px;border-radius:999px;background:rgba(182,255,59,.1);overflow:hidden;}
  .bar > i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--primary),rgba(35,230,215,.85));}
  .board-foot{margin-top:20px;padding-top:16px;border-top:1px dashed rgba(182,255,59,.2);display:flex;justify-content:space-between;gap:14px;font-size:13px;color:var(--text-3);}

  /* ---------- 指标看板 ---------- */
  .metric-grid{
    display:grid;
    grid-template-columns:repeat(6,minmax(0,1fr));
    gap:20px;
  }
  .metric{
    background:var(--card);
    border:1px solid var(--primary-line);
    border-radius:var(--radius-md);
    padding:22px 20px;
    transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
  }
  .metric:hover{transform:translateY(-4px);border-color:var(--primary-dim);box-shadow:var(--shadow-hover);}
  .metric .num{font-family:var(--font-num);font-size:34px;line-height:1;color:var(--primary);}
  .metric .num small{font-size:15px;margin-left:3px;color:var(--text-2);}
  .metric .name{margin-top:12px;font-size:15px;font-weight:600;}
  .metric .desc{margin-top:6px;font-size:13px;line-height:1.7;color:var(--text-3);}

  /* ---------- 栏目卡片 ---------- */
  .col-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px;}
  .col-card{
    background:var(--card);
    border:1px solid var(--primary-line);
    border-radius:var(--radius-lg);
    overflow:hidden;
    display:flex;flex-direction:column;
    transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease;
  }
  .col-card:hover{transform:translateY(-4px);border-color:var(--primary-dim);box-shadow:var(--shadow-hover);}
  .col-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;}
  .col-thumb img{width:100%;height:100%;object-fit:cover;filter:saturate(.9) contrast(1.02);transition:transform .45s ease;}
  .col-card:hover .col-thumb img{transform:scale(1.03);}
  .col-thumb::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(10,13,11,0) 30%,rgba(10,13,11,.88) 100%);
  }
  .col-badge{
    position:absolute;left:14px;bottom:12px;z-index:2;
    font-size:12px;letter-spacing:.08em;
    padding:5px 11px;border-radius:999px;
    background:rgba(10,13,11,.82);
    border:1px solid rgba(35,230,215,.4);
    color:#9FF2EA;
  }
  .col-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1;}
  .col-body h3{font-size:19px;line-height:1.35;}
  .col-body p{font-size:14px;line-height:1.8;color:var(--text-2);}
  .col-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:14px;border-top:1px dashed rgba(182,255,59,.18);font-size:13px;color:var(--text-3);}
  .col-meta a{color:var(--primary);}
  .col-meta a:hover{color:var(--cyan);}

  /* ---------- 对比条 ---------- */
  .compare{
    background:var(--surface);
    border:1px solid var(--primary-line);
    border-radius:var(--radius-lg);
    padding:32px;
  }
  .compare-row{padding:18px 0;border-bottom:1px dashed rgba(182,255,59,.14);}
  .compare-row:last-child{border-bottom:0;padding-bottom:0;}
  .compare-row:first-child{padding-top:0;}
  .compare-top{display:flex;align-items:baseline;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:12px;}
  .compare-name{font-size:16px;font-weight:600;}
  .compare-diff{font-size:13px;color:var(--magenta);border:1px solid rgba(255,77,141,.4);border-radius:999px;padding:3px 10px;}
  .compare-line{display:grid;grid-template-columns:78px 1fr 54px;align-items:center;gap:12px;margin-bottom:8px;}
  .compare-line:last-child{margin-bottom:0;}
  .compare-line .cap{font-size:13px;color:var(--text-3);}
  .compare-line .val{font-family:var(--font-num);font-size:15px;text-align:right;color:var(--text-2);}
  .track{height:10px;border-radius:999px;background:rgba(182,255,59,.08);overflow:hidden;}
  .track > i{display:block;height:100%;border-radius:999px;}
  .fill-now{background:linear-gradient(90deg,var(--primary),#8CE63A);box-shadow:0 0 14px rgba(182,255,59,.28);}
  .fill-prev{background:repeating-linear-gradient(90deg,rgba(35,230,215,.55) 0 6px,rgba(35,230,215,.22) 6px 12px);}

  /* ---------- 排行 ---------- */
  .rank-panel{
    background:var(--card);
    border:1px solid var(--primary-line);
    border-radius:var(--radius-lg);
    padding:28px;
  }
  .rank-item{
    display:grid;
    grid-template-columns:44px 1fr 120px 66px;
    align-items:center;gap:16px;
    padding:16px 0;
    border-bottom:1px dashed rgba(182,255,59,.14);
    transition:background .22s ease;
  }
  .rank-item:last-child{border-bottom:0;padding-bottom:0;}
  .rank-item:hover{background:rgba(182,255,59,.04);}
  .rank-no{font-family:var(--font-num);font-size:20px;color:var(--text-3);}
  .rank-item:nth-child(1) .rank-no,
  .rank-item:nth-child(2) .rank-no,
  .rank-item:nth-child(3) .rank-no{color:var(--primary);}
  .rank-name{font-size:15px;font-weight:600;}
  .rank-name span{display:block;font-size:13px;font-weight:400;color:var(--text-3);margin-top:3px;}
  .rank-share{font-family:var(--font-num);font-size:15px;text-align:right;color:var(--text-2);}

  /* ---------- FAQ ---------- */
  .faq-wrap{max-width:900px;margin:0 auto;display:grid;gap:14px;}
  .faq-item{
    background:var(--card);
    border:1px solid var(--primary-line);
    border-left:3px solid rgba(182,255,59,.35);
    border-radius:var(--radius-md);
    transition:border-color .24s ease,background .24s ease;
  }
  .faq-item.is-open{border-left-color:var(--primary);background:rgba(21,27,22,.95);}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    min-height:56px;padding:14px 22px;
    background:transparent;border:0;cursor:pointer;text-align:left;
    font-size:16px;font-weight:600;color:var(--text);
  }
  .faq-q:hover{color:var(--primary);}
  .faq-icon{
    flex:none;width:26px;height:26px;border-radius:50%;
    border:1px solid var(--primary-line);
    display:inline-flex;align-items:center;justify-content:center;
    font-size:15px;color:var(--primary);line-height:1;
    transition:transform .26s ease,border-color .26s ease;
  }
  .faq-item.is-open .faq-icon{transform:rotate(45deg);border-color:var(--primary);}
  .faq-a{
    max-height:0;overflow:hidden;
    transition:max-height .32s ease;
  }
  .faq-a p{padding:0 22px 20px 22px;font-size:15px;line-height:1.85;color:var(--text-2);}

  /* ---------- CTA / 表单 ---------- */
  .cta-panel{
    position:relative;
    border:1px solid rgba(182,255,59,.28);
    border-radius:24px;
    background:linear-gradient(135deg,rgba(17,22,18,.96),rgba(10,13,11,.98));
    overflow:hidden;
    padding:48px;
  }
  .cta-panel::before{
    content:"";position:absolute;right:-90px;top:-90px;width:320px;height:320px;border-radius:50%;
    background:radial-gradient(circle,rgba(182,255,59,.16),transparent 68%);
    pointer-events:none;
  }
  .cta-grid{position:relative;display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:44px;}
  .form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
  .field{display:flex;flex-direction:column;gap:8px;}
  .field-full{grid-column:1 / -1;}
  .field label{font-size:13px;color:var(--text-2);letter-spacing:.02em;}
  .field input,.field textarea{
    width:100%;
    background:rgba(10,13,11,.72);
    border:1px solid var(--primary-line);
    border-radius:var(--radius-sm);
    padding:13px 15px;
    font-size:15px;color:var(--text);
    transition:border-color .22s ease,box-shadow .22s ease;
  }
  .field textarea{min-height:118px;resize:vertical;line-height:1.75;}
  .field input::placeholder,.field textarea::placeholder{color:rgba(126,138,125,.85);}
  .field input:focus,.field textarea:focus{
    outline:none;border-color:var(--cyan);
    box-shadow:0 0 0 3px rgba(35,230,215,.16);
  }
  .form-note{font-size:13px;color:var(--text-3);line-height:1.7;}
  .form-msg{
    margin-top:14px;font-size:14px;border-radius:var(--radius-sm);
    padding:12px 15px;display:none;
  }
  .form-msg.is-ok{display:block;background:rgba(182,255,59,.1);border:1px solid rgba(182,255,59,.35);color:#D3FF8E;}
  .form-msg.is-err{display:block;background:rgba(255,77,141,.1);border:1px solid rgba(255,77,141,.4);color:#FFB0CB;}

  /* ---------- 页脚 ---------- */
  .site-footer{
    position:relative;
    background:linear-gradient(180deg,#0C110D 0%,#080B09 100%);
    border-top:1px solid var(--primary-line);
    padding:72px 0 26px;
    margin-top:0;
  }
  .site-footer::before{
    content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
    background:linear-gradient(90deg,transparent,rgba(182,255,59,.6),rgba(35,230,215,.5),transparent);
  }
  .foot-brand{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:700;margin-bottom:16px;}
  .foot-desc{font-size:14px;line-height:1.85;color:var(--text-3);max-width:32em;}
  .foot-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:16px;letter-spacing:.04em;}
  .foot-list{display:grid;gap:11px;}
  .foot-list li{font-size:14px;color:var(--text-3);}
  .foot-list a{color:var(--text-2);}
  .foot-list a:hover{color:var(--primary);}
  .foot-bottom{
    margin-top:52px;padding-top:22px;
    border-top:1px solid rgba(182,255,59,.12);
    display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
    font-size:13px;color:var(--text-3);
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1024px){
    .main-nav{display:none;}
    .nav-toggle{display:inline-flex;}
    .nav-cta-desktop{display:none;}
    .shell{padding-left:24px;padding-right:24px;}
    .hero-gridwrap{grid-template-columns:1fr;gap:40px;}
    .hero-inner{padding:72px 0 80px;}
    .section{padding:80px 0;}
    .metric-grid{grid-template-columns:repeat(3,minmax(0,1fr));}
    .col-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .cta-grid{grid-template-columns:1fr;gap:32px;}
    .cta-panel{padding:36px;}
  }
  @media (max-width:768px){
    .section{padding:64px 0;}
    .metric-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .col-grid{grid-template-columns:1fr;}
    .rank-item{grid-template-columns:36px 1fr 56px;gap:12px;}
    .rank-item .rank-bar{display:none;}
    .form-grid{grid-template-columns:1fr;}
    .board{padding:22px 20px 18px;}
    .compare{padding:24px 20px;}
  }
  @media (max-width:520px){
    .shell{padding-left:16px;padding-right:16px;}
    .hero-actions .btn{width:100%;}
    .hero-inner{padding:56px 0 64px;}
    .metric .num{font-size:28px;}
    .cta-panel{padding:26px 20px;border-radius:18px;}
    .compare-line{grid-template-columns:64px 1fr 46px;}
    .faq-q{font-size:15px;padding:13px 16px;}
    .faq-a p{padding:0 16px 18px 16px;}
  }
  @media (prefers-reduced-motion:reduce){
    *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
  }

/* roulang page: category3 */
:root{
  --c-primary:#B6FF3B;
  --c-second:#23E6D7;
  --c-accent:#FF4D8D;
  --c-bg:#0A0D0B;
  --c-panel:#111612;
  --c-card:#151B16;
  --c-text:#F4F7F1;
  --c-text-2:#B7C2B5;
  --c-text-3:#7E8A7D;
  --c-line:rgba(182,255,59,0.18);
  --c-line-strong:rgba(182,255,59,0.55);
  --radius-s:10px;
  --radius-m:14px;
  --radius-l:18px;
  --shadow-card:0 14px 40px rgba(0,0,0,0.35);
  --shadow-hover:0 18px 52px rgba(0,0,0,0.5);
  --font-sans:"Noto Sans SC","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-num:"DIN Alternate","Bebas Neue","Roboto Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  padding-top:72px;
}
img{max-width:100%;display:block;border-radius:var(--radius-m);}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.22;font-weight:800;letter-spacing:.005em;}
p{margin:0;}
:focus-visible{outline:2px solid var(--c-second);outline-offset:2px;border-radius:6px;}

.shell{max-width:1240px;margin:0 auto;padding:0 32px;width:100%;}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(10,13,11,.92);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--c-line);
  transition:height .25s ease,background .25s ease;
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(35,230,215,.75),rgba(182,255,59,.75),transparent);
  pointer-events:none;
}
.nav-shell{
  height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px;
  transition:height .25s ease;
}
.site-header.is-scrolled{background:rgba(10,13,11,.97);}
.site-header.is-scrolled .nav-shell{height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:20px;font-weight:800;white-space:nowrap;}
.brand-mark{
  width:22px;height:22px;flex:0 0 22px;border-radius:7px;
  background:linear-gradient(135deg,var(--c-primary),var(--c-second));
  box-shadow:0 0 0 1px rgba(182,255,59,.35),0 0 18px rgba(182,255,59,.28);
  position:relative;
}
.brand-mark::after{
  content:"";position:absolute;inset:6px;border-radius:3px;background:var(--c-bg);opacity:.85;
}
.brand-text{color:var(--c-text);letter-spacing:.02em;}
.brand-accent{color:var(--c-primary);}
.main-nav{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;min-height:44px;
  padding:0 14px;font-size:15px;color:var(--c-text-2);border-radius:var(--radius-s);
  transition:color .2s ease,background .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:8px;height:2px;border-radius:2px;
  background:var(--c-primary);opacity:0;transform:scaleX(.4);
  transition:opacity .2s ease,transform .2s ease;
}
.nav-link:hover{color:var(--c-primary);background:rgba(182,255,59,.06);}
.nav-link.active{color:var(--c-primary);background:rgba(182,255,59,.08);}
.nav-link.active::after{opacity:1;transform:scaleX(1);box-shadow:0 0 12px rgba(182,255,59,.75);}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:var(--radius-s);
  background:rgba(21,27,22,.9);cursor:pointer;padding:0;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
  transition:border-color .2s ease;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-text-2);border-radius:2px;transition:background .2s ease;}
.nav-toggle:hover{border-color:var(--c-line-strong);}
.nav-toggle:hover span{background:var(--c-primary);}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);z-index:120;
  background:var(--c-panel);border-left:1px solid var(--c-line);
  transform:translateX(102%);transition:transform .28s ease;
  padding:22px 20px;display:flex;flex-direction:column;gap:8px;
  overflow-y:auto;
}
.mobile-drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.drawer-close{
  width:44px;height:44px;border-radius:var(--radius-s);border:1px solid var(--c-line);
  background:transparent;color:var(--c-text-2);font-size:18px;cursor:pointer;
  transition:border-color .2s ease,color .2s ease;
}
.drawer-close:hover{border-color:var(--c-line-strong);color:var(--c-primary);}
.drawer-link{
  display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:var(--radius-s);
  color:var(--c-text-2);font-size:16px;border:1px solid transparent;
  transition:color .2s ease,background .2s ease,border-color .2s ease;
}
.drawer-link:hover{color:var(--c-primary);background:rgba(182,255,59,.07);}
.drawer-link.active{color:var(--c-primary);background:rgba(182,255,59,.1);border-color:var(--c-line);}
.drawer-mask{
  position:fixed;inset:0;background:rgba(5,7,6,.68);z-index:110;opacity:0;visibility:hidden;
  transition:opacity .28s ease,visibility .28s ease;
}
.drawer-mask.show{opacity:1;visibility:visible;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:999px;font-size:15.5px;font-weight:700;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--c-primary);color:#0A0D0B;box-shadow:0 10px 26px rgba(182,255,59,.18);}
.btn-primary:hover{background:#c8ff6a;transform:translateY(-1px);box-shadow:0 12px 30px rgba(182,255,59,.3);}
.btn-outline{background:transparent;border-color:rgba(35,230,215,.55);color:var(--c-second);}
.btn-outline:hover{background:rgba(35,230,215,.12);border-color:var(--c-second);transform:translateY(-1px);}
.btn-ghost{background:transparent;color:var(--c-text-2);padding:0 8px;min-height:44px;}
.btn-ghost:hover{color:var(--c-primary);}
.btn:active{transform:scale(.98);}
.btn-sm{min-height:40px;padding:0 18px;font-size:14.5px;}

/* ---------- hero ---------- */
.hero{
  position:relative;isolation:isolate;overflow:hidden;
  border-bottom:1px solid var(--c-line);
  padding:96px 0 84px;
}
.hero-bg{
  position:absolute;inset:0;z-index:-2;
  background-image:url("/assets/images/backpic/back-3.webp");
  background-size:cover;background-position:center;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,13,11,.86),rgba(10,13,11,.94) 60%,rgba(10,13,11,.98));
}
.hero-grid{
  position:absolute;inset:0;z-index:-1;opacity:.45;
  background-image:linear-gradient(rgba(182,255,59,.06) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(182,255,59,.06) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse at 50% 20%,#000 30%,transparent 78%);
}
.hero-inner{max-width:820px;margin:0 auto;text-align:center;}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;justify-content:center;
  font-size:14px;color:var(--c-text-3);margin-bottom:22px;
}
.crumb a{color:var(--c-text-2);transition:color .2s ease;}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{opacity:.55;}
.crumb .current{color:var(--c-text-3);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;border:1px solid var(--c-line);
  background:rgba(182,255,59,.07);color:var(--c-primary);
  font-size:13.5px;letter-spacing:.06em;margin-bottom:20px;
}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--c-primary);box-shadow:0 0 10px rgba(182,255,59,.9);}
.hero h1{
  font-size:clamp(32px,4.6vw,54px);
  line-height:1.16;letter-spacing:-.01em;
}
.hero h1 .hl{color:var(--c-primary);}
.hero-sub{
  margin:22px auto 0;max-width:680px;
  color:var(--c-text-2);font-size:17px;line-height:1.85;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:34px;}
.hero-meta{
  display:flex;flex-wrap:wrap;justify-content:center;gap:14px 34px;margin-top:44px;
  padding-top:26px;border-top:1px dashed rgba(182,255,59,.2);
}
.hero-meta-item{display:flex;flex-direction:column;align-items:center;gap:2px;}
.hero-meta-item .num{font-family:var(--font-num);font-size:24px;color:var(--c-primary);letter-spacing:.03em;}
.hero-meta-item .lbl{font-size:13.5px;color:var(--c-text-3);}

/* ---------- section base ---------- */
.section{padding:96px 0;}
.section.alt{background:var(--c-panel);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.sec-head{max-width:760px;margin-bottom:48px;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-tag{
  display:inline-block;font-size:13px;letter-spacing:.14em;color:var(--c-second);
  padding:5px 12px;border-radius:999px;border:1px solid rgba(35,230,215,.32);
  background:rgba(35,230,215,.07);margin-bottom:16px;
}
.sec-head h2{font-size:clamp(24px,3vw,34px);}
.sec-head p{margin-top:16px;color:var(--c-text-2);font-size:16.5px;}
.section .shell > * + *{margin-top:0;}

/* ---------- timeline ---------- */
.timeline{position:relative;margin-top:8px;padding-left:0;}
.timeline::before{
  content:"";position:absolute;left:26px;top:12px;bottom:12px;width:2px;
  background:linear-gradient(180deg,rgba(182,255,59,.6),rgba(35,230,215,.35),rgba(182,255,59,.08));
}
.tl-item{position:relative;padding:0 0 34px 76px;}
.tl-item:last-child{padding-bottom:0;}
.tl-index{
  position:absolute;left:0;top:2px;width:54px;height:54px;border-radius:16px;
  display:flex;align-items:center;justify-content:center;
  background:var(--c-card);border:1px solid var(--c-line);
  font-family:var(--font-num);font-size:20px;color:var(--c-primary);
  box-shadow:var(--shadow-card);
}
.tl-body{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--radius-l);
  padding:22px 24px;transition:border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.tl-body:hover{border-color:var(--c-line-strong);transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.tl-body h3{font-size:19px;margin-bottom:8px;}
.tl-body p{color:var(--c-text-2);font-size:15.5px;line-height:1.85;}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;font-size:13px;
  border:1px solid var(--c-line);background:rgba(182,255,59,.06);color:var(--c-text-2);
}
.tag.cyan{border-color:rgba(35,230,215,.35);background:rgba(35,230,215,.08);color:var(--c-second);}
.tag.pink{border-color:rgba(255,77,141,.35);background:rgba(255,77,141,.09);color:var(--c-accent);}

/* ---------- knowledge cards ---------- */
.k-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.k-card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--radius-l);
  padding:26px 24px;display:flex;flex-direction:column;
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.k-card:hover{transform:translateY(-4px);border-color:var(--c-line-strong);box-shadow:var(--shadow-hover);}
.k-icon{
  width:46px;height:46px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:rgba(182,255,59,.1);border:1px solid var(--c-line);color:var(--c-primary);
  font-size:19px;margin-bottom:18px;
}
.k-card h3{font-size:18px;margin-bottom:10px;}
.k-card p{color:var(--c-text-2);font-size:15px;line-height:1.82;}
.k-foot{margin-top:18px;padding-top:14px;border-top:1px dashed rgba(182,255,59,.16);font-size:13.5px;color:var(--c-text-3);display:flex;align-items:center;gap:8px;}

/* ---------- media block ---------- */
.media-block{
  display:grid;grid-template-columns:1.05fr 1fr;gap:44px;align-items:center;
}
.media-figure{position:relative;}
.media-figure img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-l);
  border:1px solid var(--c-line);box-shadow:var(--shadow-card);
}
.media-figure::after{
  content:"";position:absolute;inset:0;border-radius:var(--radius-l);
  background:linear-gradient(200deg,rgba(10,13,11,.05),rgba(10,13,11,.6));
  pointer-events:none;
}
.check-list{display:flex;flex-direction:column;gap:14px;margin-top:24px;}
.check-list li{display:flex;gap:12px;align-items:flex-start;color:var(--c-text-2);font-size:15.5px;}
.check-list i{color:var(--c-primary);margin-top:6px;font-size:14px;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
.faq-item{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--radius-l);
  overflow:hidden;transition:border-color .2s ease;
}
.faq-item:hover{border-color:rgba(182,255,59,.4);}
.faq-item[open]{border-color:var(--c-line-strong);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;
  padding:19px 22px;min-height:44px;font-size:16.5px;font-weight:700;color:var(--c-text);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";width:3px;height:20px;border-radius:2px;background:rgba(182,255,59,.45);flex:0 0 3px;
  transition:background .2s ease,box-shadow .2s ease;
}
.faq-item[open] summary::before{background:var(--c-primary);box-shadow:0 0 12px rgba(182,255,59,.7);}
.faq-item summary .chev{margin-left:auto;color:var(--c-text-3);font-size:14px;transition:transform .22s ease,color .22s ease;}
.faq-item[open] summary .chev{transform:rotate(180deg);color:var(--c-primary);}
.faq-body{padding:0 22px 22px 39px;color:var(--c-text-2);font-size:15.5px;line-height:1.88;}

/* ---------- back links ---------- */
.back-links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.back-card{
  display:flex;flex-direction:column;gap:8px;
  padding:22px;border-radius:var(--radius-l);border:1px solid var(--c-line);
  background:var(--c-card);transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.back-card:hover{transform:translateY(-4px);border-color:var(--c-line-strong);box-shadow:var(--shadow-hover);}
.back-card .bc-title{font-size:17px;font-weight:800;}
.back-card .bc-desc{font-size:14.5px;color:var(--c-text-2);line-height:1.75;}
.back-card .bc-go{font-size:13.5px;color:var(--c-second);display:flex;align-items:center;gap:6px;margin-top:6px;}

/* ---------- CTA / form ---------- */
.cta-block{
  position:relative;border-radius:22px;border:1px solid var(--c-line);
  background:linear-gradient(150deg,rgba(21,27,22,.95),rgba(17,22,18,.98));
  padding:52px 48px;overflow:hidden;
}
.cta-block::before{
  content:"";position:absolute;right:-120px;top:-120px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(182,255,59,.18),transparent 68%);
}
.cta-inner{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;}
.cta-copy h2{font-size:clamp(24px,2.8vw,32px);}
.cta-copy p{margin-top:16px;color:var(--c-text-2);font-size:16px;}
.cta-points{margin-top:24px;display:flex;flex-direction:column;gap:12px;}
.cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--c-text-2);}
.cta-points i{color:var(--c-second);margin-top:6px;font-size:13px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{display:flex;flex-direction:column;gap:7px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:14px;color:var(--c-text-2);}
.field input,.field textarea{
  width:100%;background:#0E130F;border:1px solid var(--c-line);border-radius:var(--radius-s);
  padding:12px 14px;color:var(--c-text);font-size:15.5px;font-family:inherit;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:110px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:#5F6B5E;}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--c-second);box-shadow:0 0 0 3px rgba(35,230,215,.16);
}
.form-note{grid-column:1 / -1;font-size:13.5px;color:var(--c-text-3);}
.form-msg{grid-column:1 / -1;font-size:14px;color:var(--c-primary);min-height:20px;}

/* ---------- footer ---------- */
.site-footer{
  background:#070A08;border-top:1px solid rgba(182,255,59,.16);
  padding:66px 0 26px;position:relative;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(35,230,215,.6),rgba(182,255,59,.6),transparent);
}
.foot-brand{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:800;margin-bottom:16px;}
.foot-desc{color:var(--c-text-2);font-size:14.5px;line-height:1.85;max-width:330px;}
.foot-title{font-size:15px;font-weight:800;color:var(--c-text);margin-bottom:16px;letter-spacing:.04em;}
.foot-list{display:flex;flex-direction:column;gap:11px;}
.foot-list a,.foot-list span{color:var(--c-text-2);font-size:14.5px;transition:color .2s ease;}
.foot-list a:hover{color:var(--c-primary);}
.foot-bottom{
  margin-top:46px;padding-top:20px;border-top:1px solid rgba(182,255,59,.12);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  color:var(--c-text-3);font-size:13.5px;
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .main-nav{display:none;}
  .nav-toggle{display:flex;}
  .nav-cta-desktop{display:none;}
  .media-block{grid-template-columns:1fr;gap:32px;}
  .k-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-inner{grid-template-columns:1fr;gap:34px;}
  .back-links{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:768px){
  body{font-size:16px;padding-top:72px;}
  .shell{padding:0 24px;}
  .hero{padding:72px 0 60px;}
  .section{padding:64px 0;}
  .sec-head{margin-bottom:34px;}
  .cta-block{padding:34px 24px;border-radius:var(--radius-l);}
  .timeline::before{left:21px;}
  .tl-item{padding-left:60px;}
  .tl-index{width:44px;height:44px;border-radius:13px;font-size:17px;}
  .tl-body{padding:18px 18px;}
  .hero-meta{gap:14px 24px;}
}
@media (max-width:560px){
  .shell{padding:0 16px;}
  .k-grid{grid-template-columns:1fr;}
  .back-links{grid-template-columns:1fr;}
  .form-grid{grid-template-columns:1fr;}
  .hero-cta .btn{width:100%;}
  .hero-meta-item .num{font-size:21px;}
  .faq-body{padding-left:22px;}
  .tl-item{padding-left:0;padding-top:0;}
  .timeline::before{display:none;}
  .tl-index{position:static;margin-bottom:12px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}