/* roulang page: index */
:root{
  --ink-900:#0A0C10;
  --ink-800:#12151C;
  --ink-700:#171B24;
  --neon-500:#2EE6C5;
  --plum-500:#B14BFF;
  --hot-500:#FF4D8D;
  --amber-400:#FFC53D;
  --text-hi:#E9EEF5;
  --text-mid:#9BA6B7;
  --text-low:#5C6675;
  --hairline:rgba(255,255,255,.08);
  --neon-line:rgba(46,230,197,.45);
  --radius-card:14px;
  --radius-btn:10px;
  --shadow-card:0 8px 24px rgba(0,0,0,.35);
  --shadow-hover:0 18px 40px rgba(0,0,0,.5);
  --gap-section:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text-hi);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--hot-500);outline-offset:2px;border-radius:6px}
::selection{background:rgba(46,230,197,.28);color:#fff}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--ink-900)}
::-webkit-scrollbar-thumb{background:#242a35;border-radius:999px;border:2px solid var(--ink-900)}
::-webkit-scrollbar-thumb:hover{background:#31394a}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:var(--gap-section) 0}
.section-tight{padding:56px 0}
.sec-alt{background:var(--ink-800);border-top:1px solid var(--hairline);border-bottom:1px solid var(--hairline)}

.h1{font-size:44px;line-height:1.25;font-weight:800;letter-spacing:-.5px}
.h2{font-size:30px;line-height:1.25;font-weight:700;letter-spacing:-.3px}
.h3{font-size:20px;line-height:1.35;font-weight:650}
.lead{font-size:16px;line-height:1.85;color:var(--text-mid);max-width:72ch}
.small{font-size:13px;line-height:1.7;color:var(--text-low)}
.mono{font-family:Inter,system-ui,sans-serif;font-variant-numeric:tabular-nums}

.h2-bar{position:relative;padding-left:16px}
.h2-bar::before{content:"";position:absolute;left:0;top:.28em;width:3px;height:.86em;background:var(--neon-500);border-radius:2px;box-shadow:0 0 12px rgba(46,230,197,.6)}

.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.sec-head p{max-width:60ch}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,filter .18s ease,color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--neon-500);color:#06110F;box-shadow:0 6px 18px rgba(46,230,197,.18)}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 0 0 1px rgba(46,230,197,.5),0 12px 28px rgba(46,230,197,.24)}
.btn-ghost{background:transparent;border-color:rgba(46,230,197,.5);color:var(--neon-500)}
.btn-ghost:hover{background:rgba(46,230,197,.12);transform:translateY(-1px)}
.btn-text{background:none;padding:0;height:auto;color:var(--neon-500);font-weight:600}
.btn-text .arw{transition:transform .18s ease;display:inline-block}
.btn-text:hover .arw{transform:translateX(4px)}
.btn-wide{width:100%}
.btn-sm{height:38px;padding:0 16px;font-size:14px}

/* 徽章 / 标签 */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:999px;font-size:12px;line-height:1.6;
  background:rgba(46,230,197,.12);color:var(--neon-500);border:1px solid rgba(46,230,197,.22);
  white-space:nowrap;
}
.badge-plum{background:rgba(177,75,255,.14);color:#D3A6FF;border-color:rgba(177,75,255,.3)}
.badge-amber{background:rgba(255,197,61,.14);color:var(--amber-400);border-color:rgba(255,197,61,.3)}
.badge-overlay{
  position:absolute;left:12px;top:12px;z-index:2;
  background:rgba(10,12,16,.72);border:1px solid rgba(46,230,197,.4);color:var(--neon-500);
  backdrop-filter:none;
}

/* 卡片 */
.card{
  background:var(--ink-800);border:1px solid var(--hairline);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card-hover:hover{
  transform:translateY(-3px);
  border-color:var(--neon-line);
  box-shadow:var(--shadow-hover),0 0 0 1px rgba(46,230,197,.35);
}
.card-top-line{position:relative;overflow:hidden}
.card-top-line::before{content:"";position:absolute;left:0;right:0;top:0;height:2px;background:linear-gradient(90deg,var(--neon-500),var(--plum-500),var(--hot-500))}
.card-pad{padding:20px}
.media-16x9{position:relative;width:100%;aspect-ratio:16/9;overflow:hidden;border-radius:12px 12px 0 0;background:var(--ink-700)}
.media-16x9 img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}

/* 导航 */
.rg-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,12,16,.88);
  border-bottom:1px solid var(--hairline);
  transition:background-color .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.rg-header.is-stuck{
  background:rgba(10,12,16,.97);
  border-bottom-color:transparent;
  box-shadow:0 10px 30px rgba(0,0,0,.5);
}
.rg-header.is-stuck::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,rgba(46,230,197,0),rgba(46,230,197,.85),rgba(177,75,255,.6),rgba(46,230,197,0));
}
.rg-header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:68px}
.rg-logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.rg-logo-text{font-size:16px;font-weight:700;letter-spacing:.2px;color:var(--text-hi)}
.rg-logo-short{display:none}
.rg-nav{display:flex;align-items:center;gap:6px}
.rg-nav-link{
  position:relative;padding:8px 12px;font-size:15px;color:var(--text-mid);
  border-radius:8px;transition:color .18s ease;
}
.rg-nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:var(--neon-500);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.rg-nav-link:hover{color:var(--text-hi)}
.rg-nav-link:hover::after{transform:scaleX(1)}
.rg-nav-link.active{color:var(--neon-500);text-shadow:0 0 8px rgba(46,230,197,.55)}
.rg-nav-link.active::after{transform:scaleX(1)}
.rg-header-actions{display:flex;align-items:center;gap:10px}
.rg-cta{border-radius:6px;clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px)}
.rg-burger{
  display:none;width:44px;height:44px;border:1px solid var(--hairline);border-radius:10px;
  background:transparent;align-items:center;justify-content:center;cursor:pointer;
}
.rg-burger span{display:block;width:18px;height:1.5px;background:var(--text-hi);position:relative}
.rg-burger span::before,.rg-burger span::after{content:"";position:absolute;left:0;width:18px;height:1.5px;background:var(--text-hi)}
.rg-burger span::before{top:-6px}
.rg-burger span::after{top:6px}

.rg-drawer{
  position:fixed;inset:0;z-index:80;background:var(--ink-900);
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:32px 32px;
  transform:translateY(-100%);transition:transform .3s ease;
  display:flex;flex-direction:column;padding:20px 20px 28px;
}
.rg-drawer.open{transform:translateY(0)}
.rg-drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.rg-drawer-close{width:44px;height:44px;border:1px solid var(--hairline);border-radius:10px;background:transparent;font-size:22px;line-height:1;cursor:pointer;color:var(--text-hi)}
.rg-drawer nav{display:flex;flex-direction:column;margin-top:6px}
.rg-drawer nav a{
  display:flex;align-items:center;height:56px;font-size:18px;color:var(--text-mid);
  padding-left:14px;border-left:3px solid transparent;
}
.rg-drawer nav a.active{color:var(--neon-500);border-left-color:var(--neon-500);text-shadow:0 0 10px rgba(46,230,197,.4)}
.rg-drawer nav a:hover{color:var(--text-hi)}
.rg-drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px}
.rg-drawer-foot p{font-size:12px;color:var(--text-low);text-align:center}

/* Hero */
.hero{position:relative;overflow:hidden;padding:72px 0 88px}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(115deg,rgba(46,230,197,.09) 0%,rgba(46,230,197,0) 38%,rgba(177,75,255,.07) 100%);
}
.hero-lines{
  position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.035) 0 1px,transparent 1px 13px);
}
.hero-grid{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--text-mid);
  padding:6px 12px;border:1px solid var(--hairline);border-radius:999px;background:rgba(18,21,28,.7);
}
.hero-tag i{width:6px;height:6px;border-radius:999px;background:var(--neon-500);box-shadow:0 0 10px var(--neon-500);display:block}
.hero h1{margin-top:20px}
.hero h1 .hl{
  background:linear-gradient(96deg,var(--neon-500),#7FF3DE 45%,var(--plum-500));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{margin-top:18px;font-size:17px;color:var(--text-mid);max-width:56ch;line-height:1.8}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-stats{display:flex;flex-wrap:wrap;gap:36px;margin-top:44px;padding-top:26px;border-top:1px solid var(--hairline)}
.hero-stat .num{font-size:26px;font-weight:700;color:var(--text-hi)}
.hero-stat .num em{font-style:normal;color:var(--neon-500)}
.hero-stat .txt{font-size:13px;color:var(--text-low);margin-top:2px}

.hero-visual{position:relative}
.hero-visual .frame{
  position:relative;border-radius:12px;overflow:hidden;border:1px solid var(--neon-line);
  box-shadow:0 24px 60px rgba(0,0,0,.55),0 0 0 1px rgba(46,230,197,.12) inset;
}
.hero-visual .frame img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.hero-visual .frame::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,12,16,.05) 0%,rgba(10,12,16,.55) 100%);
}
.dot-a,.dot-b{position:absolute;border-radius:999px;pointer-events:none}
.dot-a{width:8px;height:8px;background:var(--neon-500);box-shadow:0 0 18px 4px rgba(46,230,197,.6);top:-4px;right:14%;animation:glowpulse 4s ease-in-out infinite}
.dot-b{width:6px;height:6px;background:var(--hot-500);box-shadow:0 0 16px 3px rgba(255,77,141,.55);bottom:12%;left:-3px;animation:glowpulse 5s ease-in-out infinite}
.float-card{
  position:absolute;right:-8px;bottom:-24px;width:190px;
  background:var(--ink-800);border:1px solid var(--hairline);border-radius:12px;padding:14px 16px;
  box-shadow:0 18px 40px rgba(0,0,0,.55);
}
.float-card .t{font-size:12px;color:var(--text-low)}
.float-card .v{font-size:16px;font-weight:700;color:var(--text-hi);margin-top:2px}
.float-card .bar{height:4px;border-radius:999px;background:rgba(255,255,255,.08);margin-top:10px;overflow:hidden}
.float-card .bar i{display:block;height:100%;width:78%;background:linear-gradient(90deg,var(--neon-500),var(--plum-500))}

/* Bento 功能区 */
.bento{display:grid;grid-template-columns:2fr 1fr;gap:22px}
.bento-row{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:22px}
.feature-num{
  font-family:Inter,system-ui,sans-serif;font-size:12px;font-weight:700;letter-spacing:1px;
  color:var(--neon-500);padding:3px 8px;border:1px solid rgba(46,230,197,.3);border-radius:6px;
}
.tag-track{display:flex;gap:12px;overflow-x:auto;padding:26px 0 8px;margin-top:22px;scrollbar-width:thin}
.tag-track .tag{
  flex:0 0 auto;padding:8px 16px;border-radius:999px;font-size:13px;color:var(--text-mid);
  border:1px solid var(--hairline);background:var(--ink-800);transition:color .18s ease,border-color .18s ease;
}
.tag-track .tag:hover{color:var(--neon-500);border-color:var(--neon-line)}

/* Zigzag 场景 */
.zig{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center;padding:44px 0}
.zig.rev{grid-template-columns:7fr 5fr}
.zig-img{border-radius:12px;overflow:hidden;border:1px solid var(--hairline)}
.zig-img img{width:100%;aspect-ratio:4/3;object-fit:cover}
.steps{display:flex;gap:26px;flex-wrap:wrap;margin-top:24px}
.steps li{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-mid)}
.steps li b{
  width:26px;height:26px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;font-family:Inter,system-ui,sans-serif;color:var(--neon-500);
  background:rgba(46,230,197,.1);border:1px solid rgba(46,230,197,.35);
}

/* 案例 */
.case-card{padding:20px}
.case-card .metric{font-family:Inter,system-ui,sans-serif;font-size:30px;font-weight:700;color:var(--neon-500);line-height:1.2}
.case-card .metric span{font-size:15px;color:var(--text-mid);font-weight:500;margin-left:4px}
.case-card .thumb{border-radius:10px;overflow:hidden;border:1px solid var(--hairline);margin-bottom:16px}
.case-card .thumb img{width:100%;aspect-ratio:16/9;object-fit:cover}

/* 方案 */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:stretch}
.plan{display:flex;flex-direction:column;padding:26px 22px}
.plan.pop{border-color:var(--neon-line);box-shadow:0 18px 44px rgba(0,0,0,.5),0 0 0 1px rgba(46,230,197,.28)}
.plan .price{font-family:Inter,system-ui,sans-serif;font-size:34px;font-weight:700;color:var(--amber-400);line-height:1.2;margin:14px 0 4px}
.plan .price small{font-size:14px;color:var(--text-mid);font-weight:500;margin-left:4px}
.plan ul{margin:20px 0 26px;display:flex;flex-direction:column;gap:11px}
.plan ul li{position:relative;padding-left:20px;font-size:14.5px;color:var(--text-mid);line-height:1.7}
.plan ul li::before{content:"";position:absolute;left:0;top:.68em;width:7px;height:7px;border-radius:2px;background:var(--neon-500);box-shadow:0 0 8px rgba(46,230,197,.5)}
.plan .plan-foot{margin-top:auto}
.corner-badge{
  position:absolute;right:16px;top:-1px;font-size:12px;padding:4px 12px;border-radius:0 0 8px 8px;
  background:linear-gradient(90deg,var(--neon-500),var(--plum-500));color:#06110F;font-weight:700;
}

/* 资讯列表 */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.news-card{display:flex;flex-direction:column;overflow:hidden}
.news-card:hover .media-16x9 img{transform:scale(1.02)}
.news-card:hover h3{color:#fff}
.news-card h3{font-size:18px;font-weight:650;line-height:1.45;color:var(--text-hi);transition:color .2s ease;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card p{font-size:14px;color:var(--text-mid);line-height:1.7;margin-top:10px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:16px;padding-top:14px;border-top:1px solid var(--hairline)}
.news-meta .info{font-size:13px;color:var(--text-low);display:flex;align-items:center;gap:8px}
.news-meta .info i{width:1px;height:12px;background:var(--hairline);display:block}
.empty-state{
  grid-column:1/-1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  padding:56px 20px;border:1px dashed var(--hairline);border-radius:var(--radius-card);background:var(--ink-800);
}
.empty-state svg{opacity:.35}
.empty-state p{font-size:14px;color:var(--text-low)}

/* FAQ */
.faq-wrap{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
.faq-item{border:1px solid var(--hairline);border-radius:12px;background:var(--ink-800);margin-bottom:12px;overflow:hidden;transition:border-color .2s ease}
.faq-item.open{border-color:var(--neon-line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;
  padding:18px 20px 18px 22px;background:transparent;border:0;cursor:pointer;position:relative;
  font-size:16px;font-weight:600;color:var(--text-hi);line-height:1.5;
}
.faq-q::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:2px;background:transparent;transition:background-color .2s ease}
.faq-item.open .faq-q::before{background:var(--neon-500);box-shadow:0 0 12px rgba(46,230,197,.7)}
.faq-sign{font-family:Inter,system-ui,sans-serif;font-size:20px;color:var(--neon-500);flex-shrink:0;line-height:1}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a p{padding:0 20px 20px 22px;font-size:14.5px;line-height:1.8;color:var(--text-mid)}

/* CTA 全宽 */
.cta-band{position:relative;overflow:hidden;background:var(--ink-800);border-top:1px solid var(--hairline);border-bottom:1px solid var(--hairline)}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(46,230,197,.14) 0%,rgba(46,230,197,0) 42%,rgba(177,75,255,.16) 100%);
}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:32px;padding:60px 0}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-dot{position:absolute;border-radius:999px;pointer-events:none}
.cta-dot.one{width:7px;height:7px;background:var(--neon-500);box-shadow:0 0 16px 4px rgba(46,230,197,.55);top:24%;left:6%}
.cta-dot.two{width:5px;height:5px;background:var(--hot-500);box-shadow:0 0 14px 3px rgba(255,77,141,.5);bottom:22%;right:8%}

/* 页脚 */
.site-footer{background:var(--ink-900);border-top:1px solid var(--hairline);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px}
.footer-col h4{font-size:14px;color:var(--neon-500);font-weight:600;margin-bottom:16px;letter-spacing:.3px}
.footer-col p{font-size:14px;color:var(--text-mid);line-height:1.8}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col ul a{font-size:14px;color:var(--text-mid);transition:color .18s ease,transform .18s ease;display:inline-block}
.footer-col ul a:hover{color:#fff;transform:translateX(2px)}
.footer-form{display:flex;gap:10px;margin-top:14px}
.footer-form input{
  flex:1;height:42px;padding:0 14px;border-radius:10px;background:var(--ink-800);
  border:1px solid var(--hairline);color:var(--text-hi);font-size:14px;transition:border-color .2s ease,box-shadow .2s ease;
}
.footer-form input::placeholder{color:var(--text-low)}
.footer-form input:focus{outline:none;border-color:var(--neon-500);box-shadow:0 0 0 4px rgba(46,230,197,.14)}
.footer-bottom{
  margin-top:52px;padding:22px 0;border-top:1px solid var(--hairline);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
}
.footer-bottom p{font-size:13px;color:var(--text-low)}
.footer-bottom .quick{display:flex;gap:18px;flex-wrap:wrap}
.footer-bottom .quick a{font-size:13px;color:var(--text-low);transition:color .18s ease}
.footer-bottom .quick a:hover{color:var(--neon-500)}

@media (max-width:1024px){
  :root{--gap-section:64px}
  .container{padding:0 24px}
  .h1{font-size:36px}
  .h2{font-size:26px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .bento{grid-template-columns:1fr}
  .bento-row{grid-template-columns:repeat(2,1fr)}
  .zig,.zig.rev{grid-template-columns:1fr;gap:28px}
  .zig.rev .zig-img{order:-1}
  .plan-grid{grid-template-columns:1fr}
  .faq-wrap{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .news-grid{grid-template-columns:1fr}
  .rg-nav{display:none}
  .rg-burger{display:inline-flex}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:48px 0}
}
@media (max-width:640px){
  :root{--gap-section:56px}
  .container{padding:0 16px}
  .h1{font-size:30px}
  .h2{font-size:23px}
  .h3{font-size:18px}
  body{font-size:15.5px}
  .hero{padding:48px 0 64px}
  .hero-sub{font-size:16px}
  .hero-stats{gap:22px;margin-top:32px}
  .hero-stat .num{font-size:22px}
  .rg-logo-text{font-size:15px}
  .rg-logo-full{display:none}
  .rg-logo-short{display:inline}
  .rg-cta{display:none}
  .bento-row{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .btn{width:100%}
  .hero-actions .btn,.cta-actions .btn{width:100%}
  .float-card{position:static;width:100%;margin-top:14px}
  .sec-head{flex-direction:column;align-items:flex-start;gap:14px}
}

/* roulang page: article */
:root{
  --ink-900:#0A0C10;
  --ink-800:#12151C;
  --ink-700:#171B24;
  --neon-500:#2EE6C5;
  --plum-500:#B14BFF;
  --hot-500:#FF4D8D;
  --amber-400:#FFC53D;
  --text-hi:#E9EEF5;
  --text-mid:#9BA6B7;
  --text-low:#5C6675;
  --hairline:rgba(255,255,255,.08);
  --neon-line:rgba(46,230,197,.45);
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-1:0 8px 24px rgba(0,0,0,.35);
  --shadow-2:0 18px 40px rgba(0,0,0,.5), 0 0 0 1px rgba(46,230,197,.35);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text-hi);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:inherit;text-decoration:none;transition:color .18s ease,border-color .18s ease,background-color .18s ease,transform .18s ease;}
a:hover{color:#fff;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:.2px;}
p{margin:0 0 1.1em;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--hot-500);outline-offset:2px;}
::selection{background:rgba(46,230,197,.28);color:#fff;}
.container{max-width:1200px;margin:0 auto;padding:0 32px;width:100%;}
.section{padding:88px 0;}
.section-sm{padding:56px 0;}
.text-mid{color:var(--text-mid);}
.text-low{color:var(--text-low);}

/* 顶部导航 */
.rg-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  height:68px;
  background:rgba(10,12,16,.88);
  border-bottom:1px solid var(--hairline);
  transition:background .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.rg-header.is-stuck{
  background:rgba(10,12,16,.97);
  border-bottom:1px solid transparent;
  box-shadow:var(--shadow-1);
  background-image:linear-gradient(90deg,rgba(46,230,197,0),rgba(46,230,197,.7),rgba(177,75,255,.6),rgba(46,230,197,0));
  background-repeat:no-repeat;
  background-size:100% 1px;
  background-position:bottom left;
}
.rg-header-inner{display:flex;align-items:center;justify-content:space-between;height:68px;gap:24px;}
.rg-logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.rg-logo svg{flex-shrink:0;filter:drop-shadow(0 0 6px rgba(46,230,197,.35));}
.rg-logo-text{font-size:17px;font-weight:700;letter-spacing:.3px;white-space:nowrap;color:var(--text-hi);}
.rg-logo-short{display:none;}
.rg-nav{display:flex;align-items:center;gap:6px;margin-left:auto;}
.rg-nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  height:68px;padding:0 14px;
  font-size:15px;color:var(--text-mid);
}
.rg-nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:16px;height:2px;
  background:linear-gradient(90deg,var(--neon-500),var(--plum-500));
  border-radius:2px;opacity:0;transform:scaleX(.4);transition:.2s ease;
}
.rg-nav-link:hover{color:var(--text-hi);}
.rg-nav-link:hover::after{opacity:.6;transform:scaleX(1);}
.rg-nav-link.active{color:var(--neon-500);text-shadow:0 0 8px rgba(46,230,197,.45);}
.rg-nav-link.active::after{opacity:1;transform:scaleX(1);}
.rg-header-actions{display:flex;align-items:center;gap:12px;}
.rg-cta{white-space:nowrap;}
.rg-burger{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--hairline);background:rgba(255,255,255,.03);
  cursor:pointer;align-items:center;justify-content:center;padding:0;
}
.rg-burger span{display:block;width:18px;height:1.6px;background:var(--text-hi);position:relative;}
.rg-burger span::before,.rg-burger span::after{
  content:"";position:absolute;left:0;width:18px;height:1.6px;background:var(--text-hi);
}
.rg-burger span::before{top:-6px;}
.rg-burger span::after{top:6px;}

/* 抽屉 */
.rg-drawer{
  position:fixed;inset:68px 0 0 0;z-index:55;
  background:var(--ink-900);
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:44px 44px;
  padding:24px 16px 32px;
  display:none;flex-direction:column;
  overflow-y:auto;
}
.rg-drawer.is-open{display:flex;}
.rg-drawer a.rg-drawer-link{
  display:flex;align-items:center;height:56px;font-size:18px;color:var(--text-mid);
  border-bottom:1px solid var(--hairline);padding-left:12px;position:relative;
}
.rg-drawer a.rg-drawer-link.active{color:var(--neon-500);}
.rg-drawer a.rg-drawer-link.active::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;background:var(--neon-500);border-radius:2px;
}
.rg-drawer-foot{margin-top:auto;padding-top:24px;}
.rg-drawer-copy{font-size:13px;color:var(--text-low);margin-top:12px;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;
  border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;cursor:pointer;
  border:1px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,filter .18s ease;
}
.btn-primary{
  background:var(--neon-500);
  color:#06120F;
  clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px);
}
.btn-primary:hover{
  filter:brightness(1.06);
  transform:translateY(-1px);
  box-shadow:0 0 22px rgba(46,230,197,.42);
  color:#06120F;
}
.btn-ghost{
  background:transparent;
  border:1px solid rgba(46,230,197,.5);
  color:var(--neon-500);
}
.btn-ghost:hover{background:rgba(46,230,197,.12);color:var(--neon-500);}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--neon-500);font-weight:600;
}
.link-arrow svg{transition:transform .18s ease;}
.link-arrow:hover svg{transform:translateX(4px);}

/* 徽章 */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  font-size:12px;line-height:1.6;
  background:rgba(46,230,197,.12);
  color:var(--neon-500);
  border:1px solid rgba(46,230,197,.28);
}
.badge-plum{background:rgba(177,75,255,.14);color:#D7A8FF;border-color:rgba(177,75,255,.34);}
.badge-amber{background:rgba(255,197,61,.14);color:var(--amber-400);border-color:rgba(255,197,61,.32);}
.badge-solid{background:rgba(10,12,16,.72);color:var(--neon-500);border:1px solid rgba(10,12,16,.85);}

/* 卡片 */
.card{
  background:var(--ink-800);
  border:1px solid var(--hairline);
  border-radius:var(--radius-card);
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.card:hover{border-color:var(--neon-line);box-shadow:var(--shadow-2);}
.card-media{position:relative;overflow:hidden;border-radius:var(--radius-img);}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease;}
.card:hover .card-media img{transform:scale(1.02);}
.card-media .badge{position:absolute;top:12px;left:12px;z-index:2;}

/* 面包屑 */
.breadcrumb{font-size:13px;color:var(--text-low);display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.breadcrumb a:hover{color:var(--neon-500);}
.breadcrumb .cur{color:var(--text-hi);font-weight:600;}

/* 文章头部 */
.article-hero{
  padding:120px 0 40px;
  border-bottom:1px solid var(--hairline);
  background:
    radial-gradient(760px 320px at 12% 0%,rgba(46,230,197,.10),transparent 70%),
    radial-gradient(560px 300px at 92% 10%,rgba(177,75,255,.12),transparent 72%),
    var(--ink-900);
}
.article-title{
  font-size:44px;line-height:1.3;margin:18px 0 20px;
  max-width:900px;
  background:linear-gradient(92deg,#FFFFFF 10%,#CFEFE7 55%,#9BE3FF 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  font-size:13px;color:var(--text-low);
}
.article-meta .sep{width:1px;height:12px;background:var(--hairline);display:inline-block;}

/* 文章布局 */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,760px) 240px;
  gap:56px;
  justify-content:center;
  padding:56px 32px 0;
}
.article-main{min-width:0;}
.article-body{font-size:16px;line-height:1.85;color:var(--text-mid);max-width:72ch;}
.article-body > p:first-of-type{font-size:17px;color:var(--text-hi);}
.article-body p{margin:0 0 1.1em;}
.article-body h2{
  position:relative;
  font-size:30px;line-height:1.25;color:var(--text-hi);
  margin:40px 0 18px;padding-left:14px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:2px;
  background:linear-gradient(180deg,var(--neon-500),rgba(46,230,197,.15));
}
.article-body h3{font-size:20px;color:var(--text-hi);margin:30px 0 12px;font-weight:700;}
.article-body h4{font-size:17px;color:var(--text-hi);margin:24px 0 10px;}
.article-body ul,.article-body ol{margin:0 0 1.1em;padding-left:22px;}
.article-body ul li{list-style:none;position:relative;margin-bottom:8px;line-height:1.8;}
.article-body ul li::before{
  content:"";position:absolute;left:-16px;top:11px;width:6px;height:6px;border-radius:50%;
  background:var(--neon-500);box-shadow:0 0 8px rgba(46,230,197,.6);
}
.article-body ol{counter-reset:item;padding-left:26px;}
.article-body ol li{list-style:none;position:relative;counter-increment:item;margin-bottom:8px;line-height:1.8;}
.article-body ol li::before{
  content:counter(item,decimal-leading-zero);
  position:absolute;left:-26px;top:2px;font-size:13px;font-weight:700;color:var(--neon-500);
}
.article-body blockquote{
  margin:22px 0;padding:16px 20px;
  border-left:3px solid var(--text-low);
  background:rgba(255,255,255,.03);
  border-radius:0 var(--radius-btn) var(--radius-btn) 0;
  color:var(--text-mid);
}
.article-body img{margin:22px 0 8px;}
.article-body figure{margin:22px 0;}
.article-body figcaption{font-size:12px;color:var(--text-low);text-align:center;margin-top:8px;}
.article-body table{
  width:100%;border-collapse:collapse;margin:22px 0;font-size:14.5px;
  border:1px solid var(--hairline);border-radius:var(--radius-btn);overflow:hidden;
}
.article-body thead th{background:var(--ink-700);color:var(--text-hi);text-align:left;font-weight:600;}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--hairline);}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.025);}
.article-body a{color:var(--neon-500);border-bottom:1px solid rgba(46,230,197,.35);}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:14px;
  background:rgba(255,255,255,.06);padding:2px 6px;border-radius:6px;color:#CFEFE7;
}
.article-body hr{border:none;border-top:1px solid var(--hairline);margin:32px 0;}

/* 目录 */
.article-toc{
  position:sticky;top:96px;align-self:start;
  border-left:1px solid var(--hairline);
  padding-left:20px;
  max-height:calc(100vh - 140px);overflow-y:auto;
}
.article-toc h2{font-size:14px;color:var(--neon-500);letter-spacing:1px;margin-bottom:14px;}
.article-toc a{
  display:block;font-size:13.5px;color:var(--text-low);line-height:1.7;
  padding:6px 10px;border-left:2px solid transparent;border-radius:0 6px 6px 0;
}
.article-toc a:hover{color:var(--text-hi);background:rgba(255,255,255,.04);}
.article-toc a.is-sub{padding-left:22px;font-size:13px;}
.article-toc a.active{color:var(--neon-500);border-left-color:var(--neon-500);background:rgba(46,230,197,.08);}

/* 文章尾部 */
.article-foot{margin-top:48px;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;padding:22px 0;border-top:1px solid var(--hairline);border-bottom:1px solid var(--hairline);}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:32px;}
.pager-card{
  display:block;padding:20px;border-radius:var(--radius-card);
  background:var(--ink-800);border:1px solid var(--hairline);
}
.pager-card:hover{border-color:var(--neon-line);box-shadow:var(--shadow-2);}
.pager-card span{display:block;font-size:12px;color:var(--text-low);margin-bottom:8px;}
.pager-card strong{font-size:15px;color:var(--text-hi);font-weight:600;}

/* 相关推荐 */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.rel-card{display:flex;flex-direction:column;overflow:hidden;}
.rel-card .card-media{border-radius:var(--radius-card) var(--radius-card) 0 0;}
.rel-card .rel-body{padding:18px 20px 20px;}
.rel-card h3{font-size:16px;margin-bottom:10px;color:var(--text-hi);}
.rel-card .rel-meta{font-size:12px;color:var(--text-low);display:flex;gap:10px;align-items:center;margin-top:auto;}

/* 空态 */
.empty-state{
  padding:56px 24px;text-align:center;
  border:1px dashed var(--hairline);border-radius:var(--radius-card);
  background:rgba(255,255,255,.02);
}
.empty-state svg{opacity:.35;margin:0 auto 16px;}
.empty-state p{color:var(--text-mid);margin-bottom:18px;}

/* CTA 区块 */
.cta-band{
  position:relative;overflow:hidden;
  border-top:1px solid var(--hairline);
  background:var(--ink-800);
}
.cta-band::before{
  content:"";position:absolute;inset:-40% -10% auto -10%;height:220px;
  background:linear-gradient(100deg,rgba(46,230,197,0),rgba(46,230,197,.20),rgba(177,75,255,.22),rgba(46,230,197,0));
  transform:rotate(-5deg);
}
.cta-band .container{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;padding-top:56px;padding-bottom:56px;flex-wrap:wrap;}
.cta-band h2{font-size:30px;margin-bottom:10px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.dot{position:absolute;width:8px;height:8px;border-radius:50%;background:var(--neon-500);box-shadow:0 0 16px rgba(46,230,197,.8);}

/* 页脚 */
.site-footer{
  background:var(--ink-800);
  border-top:1px solid var(--hairline);
  padding:64px 0 28px;
  margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:36px;}
.footer-col h4{font-size:14px;color:var(--neon-500);letter-spacing:.6px;margin-bottom:16px;}
.footer-col p{font-size:14px;color:var(--text-mid);line-height:1.85;margin:0 0 14px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{font-size:14px;color:var(--text-mid);display:inline-block;}
.footer-col ul a:hover{color:#fff;transform:translateX(2px);}
.footer-form{display:flex;gap:10px;flex-wrap:wrap;}
.footer-form input{
  flex:1 1 160px;min-height:42px;padding:0 14px;
  background:var(--ink-900);border:1px solid var(--hairline);border-radius:var(--radius-btn);
  color:var(--text-hi);font-size:14px;
}
.footer-form input::placeholder{color:var(--text-low);}
.footer-form input:focus{outline:none;border-color:var(--neon-500);box-shadow:0 0 0 4px rgba(46,230,197,.14);}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--hairline);
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-low);
}
.footer-bottom .quick{display:flex;gap:18px;flex-wrap:wrap;}
.footer-bottom .quick a:hover{color:var(--neon-500);}

@media (max-width:1279px){
  .article-layout{grid-template-columns:minmax(0,760px);}
  .article-toc{display:none;}
}
@media (max-width:1024px){
  .container{padding:0 24px;}
  .article-layout{padding:44px 24px 0;gap:0;}
  .rel-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .rg-nav-link{padding:0 10px;font-size:14px;}
  .section{padding:64px 0;}
  .article-title{font-size:34px;}
}
@media (max-width:768px){
  .rg-nav,.rg-cta{display:none;}
  .rg-burger{display:inline-flex;}
  .article-hero{padding:104px 0 32px;}
  .article-title{font-size:30px;}
  .article-body h2{font-size:23px;}
  .article-body h3{font-size:18px;}
  .cta-band h2{font-size:23px;}
  .pager{grid-template-columns:1fr;}
}
@media (max-width:640px){
  .container{padding:0 16px;}
  .article-layout{padding:36px 16px 0;}
  .rg-logo-full{display:none;}
  .rg-logo-short{display:inline;}
  .rg-logo-text{font-size:16px;}
  .rel-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .section{padding:56px 0;}
  .btn{width:100%;}
  .cta-actions{width:100%;}
  .footer-form input{flex:1 1 100%;}
  .article-body{font-size:15.5px;}
  .article-body img{margin-left:-16px;margin-right:-16px;max-width:calc(100% + 32px);border-radius:0;}
}

/* roulang page: category1 */
:root{
    --ink-900:#0A0C10;
    --ink-800:#12151C;
    --ink-700:#171B24;
    --neon-500:#2EE6C5;
    --plum-500:#B14BFF;
    --hot-500:#FF4D8D;
    --amber-400:#FFC53D;
    --text-hi:#E9EEF5;
    --text-mid:#9BA6B7;
    --text-low:#5C6675;
    --hairline:rgba(255,255,255,.08);
    --neon-line:rgba(46,230,197,.45);
    --radius-card:14px;
    --radius-btn:10px;
    --shadow-card:0 8px 24px rgba(0,0,0,.35);
    --shadow-hover:0 18px 40px rgba(0,0,0,.5), 0 0 0 1px rgba(46,230,197,.35);
    --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
    --font-mono:Inter,ui-monospace,SFMono-Regular,Menlo,monospace;
  }

  *,*::before,*::after{ box-sizing:border-box; }
  html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
  body.rg-body{
    margin:0;
    background:var(--ink-900);
    color:var(--text-hi);
    font-family:var(--font-sans);
    font-size:16px;
    line-height:1.85;
    overflow-x:hidden;
    -webkit-font-smoothing:antialiased;
  }
  body.rg-body img{ max-width:100%; height:auto; display:block; }
  body.rg-body a{ color:inherit; text-decoration:none; transition:color .18s ease; }
  body.rg-body ul,body.rg-body ol{ list-style:none; margin:0; padding:0; }
  body.rg-body button{ font:inherit; color:inherit; background:none; border:0; cursor:pointer; }
  body.rg-body h1,body.rg-body h2,body.rg-body h3,body.rg-body h4{ margin:0; font-weight:700; line-height:1.25; letter-spacing:-.01em; }
  body.rg-body p{ margin:0 0 1.1em; }
  body.rg-body p:last-child{ margin-bottom:0; }
  body.rg-body :focus-visible{ outline:2px solid var(--hot-500); outline-offset:2px; border-radius:6px; }
  ::selection{ background:rgba(46,230,197,.28); color:#fff; }
  ::-webkit-scrollbar{ width:10px; height:10px; }
  ::-webkit-scrollbar-track{ background:#0A0C10; }
  ::-webkit-scrollbar-thumb{ background:#20252F; border-radius:6px; border:2px solid #0A0C10; }
  ::-webkit-scrollbar-thumb:hover{ background:#2C333F; }

  .container{ width:100%; max-width:1200px; margin:0 auto; padding:0 32px; }
  .section{ padding:88px 0; }
  .section-tight{ padding:64px 0; }
  .hairline{ height:1px; background:var(--hairline); }

  /* ============ 顶栏 ============ */
  .rg-header{
    position:fixed; top:0; left:0; right:0; z-index:80; height:68px;
    background:rgba(10,12,16,.88);
    border-bottom:1px solid var(--hairline);
    transition:background .25s ease, box-shadow .25s ease;
  }
  .rg-header.is-stuck{ background:rgba(10,12,16,.97); box-shadow:0 10px 30px rgba(0,0,0,.45); border-bottom-color:transparent; }
  .rg-header.is-stuck::after{
    content:""; position:absolute; left:0; right:0; bottom:0; height:1px;
    background:linear-gradient(90deg,transparent,rgba(46,230,197,.75),rgba(177,75,255,.7),transparent);
  }
  .rg-header-inner{ height:68px; display:flex; align-items:center; justify-content:space-between; gap:24px; }
  .rg-logo{ display:flex; align-items:center; gap:10px; flex:0 0 auto; }
  .rg-logo svg{ flex:0 0 28px; }
  .rg-logo-text{ font-size:17px; font-weight:700; color:var(--text-hi); letter-spacing:.01em; }
  .rg-logo-short{ display:none; }
  .rg-nav{ display:flex; align-items:center; gap:4px; }
  .rg-nav-link{
    position:relative; padding:9px 12px; font-size:15px; color:var(--text-mid);
    transition:color .18s ease;
  }
  .rg-nav-link::after{
    content:""; position:absolute; left:50%; bottom:2px; transform:translateX(-50%);
    width:0; height:2px; border-radius:2px; background:var(--neon-500); transition:width .2s ease;
  }
  .rg-nav-link:hover{ color:var(--text-hi); }
  .rg-nav-link:hover::after{ width:56%; }
  .rg-nav-link.active{ color:var(--neon-500); text-shadow:0 0 10px rgba(46,230,197,.5); }
  .rg-nav-link.active::after{ width:56%; box-shadow:0 0 10px rgba(46,230,197,.75); }
  .rg-header-actions{ display:flex; align-items:center; gap:12px; }

  .rg-burger{
    display:none; width:44px; height:44px; border-radius:10px;
    border:1px solid var(--hairline); align-items:center; justify-content:center;
    transition:border-color .2s ease, background .2s ease;
  }
  .rg-burger:hover{ border-color:var(--neon-line); background:rgba(46,230,197,.08); }
  .rg-burger span{ position:relative; display:block; width:18px; height:1.5px; background:var(--text-hi); border-radius:2px; transition:background .2s ease; }
  .rg-burger span::before,.rg-burger span::after{
    content:""; position:absolute; left:0; width:18px; height:1.5px;
    background:var(--text-hi); border-radius:2px; transition:transform .22s ease, top .22s ease;
  }
  .rg-burger span::before{ top:-6px; }
  .rg-burger span::after{ top:6px; }
  .rg-burger.is-open span{ background:transparent; }
  .rg-burger.is-open span::before{ top:0; transform:rotate(45deg); }
  .rg-burger.is-open span::after{ top:0; transform:rotate(-45deg); }

  /* ============ 抽屉 ============ */
  .rg-drawer{
    position:fixed; top:68px; left:0; right:0; bottom:0; z-index:70;
    background:var(--ink-900); padding:22px 20px 32px;
    transform:translateY(-10px); opacity:0; visibility:hidden;
    transition:opacity .24s ease, transform .24s ease, visibility .24s ease;
    overflow-y:auto; display:none;
  }
  .rg-drawer.is-open{ opacity:1; visibility:visible; transform:translateY(0); }
  .rg-drawer::before{
    content:""; position:absolute; inset:0; pointer-events:none; opacity:.4;
    background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
    background-size:44px 44px;
  }
  .rg-drawer-inner{ position:relative; z-index:2; }
  .rg-drawer-link{
    display:flex; align-items:center; height:56px; padding-left:14px;
    font-size:18px; color:var(--text-mid); border-bottom:1px solid var(--hairline); position:relative;
  }
  .rg-drawer-link.active{ color:var(--neon-500); }
  .rg-drawer-link.active::before{
    content:""; position:absolute; left:0; top:14px; bottom:14px; width:3px;
    border-radius:3px; background:var(--neon-500); box-shadow:0 0 10px rgba(46,230,197,.7);
  }
  .rg-drawer-cta{ margin-top:22px; }
  .rg-drawer-note{ margin-top:18px; font-size:12px; color:var(--text-low); }

  /* ============ 按钮 ============ */
  .btn{
    display:inline-flex; align-items:center; justify-content:center; gap:8px;
    min-height:44px; padding:11px 22px; border-radius:var(--radius-btn);
    font-size:15px; font-weight:600; border:1px solid transparent;
    transition:transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease, border-color .18s ease;
  }
  .btn-primary{ background:var(--neon-500); color:#06120F; }
  .btn-primary:hover{ background:#46EFD4; transform:translateY(-1px); box-shadow:0 10px 26px rgba(46,230,197,.26), 0 0 0 1px rgba(46,230,197,.45); }
  .btn-outline{ background:transparent; border-color:rgba(46,230,197,.5); color:var(--neon-500); }
  .btn-outline:hover{ background:rgba(46,230,197,.12); transform:translateY(-1px); }
  .btn-ghost{ background:transparent; color:var(--neon-500); padding:8px 0; min-height:auto; }
  .btn-ghost .arw{ transition:transform .18s ease; }
  .btn-ghost:hover .arw{ transform:translateX(4px); }
  .btn-sm{ min-height:40px; padding:9px 16px; font-size:14px; }
  .btn-block{ width:100%; }

  /* ============ 首屏 ============ */
  .page-main{ padding-top:68px; }
  .page-hero{ position:relative; overflow:hidden; padding:68px 0 60px; border-bottom:1px solid var(--hairline); }
  .page-hero::before{
    content:""; position:absolute; inset:0;
    background-image:url('/assets/images/backpic/back-2.png');
    background-size:cover; background-position:center; opacity:.22;
  }
  .page-hero::after{
    content:""; position:absolute; inset:0;
    background:linear-gradient(118deg,rgba(10,12,16,.97) 0%,rgba(10,12,16,.82) 46%,rgba(10,12,16,.97) 100%);
  }
  .page-hero .container{ position:relative; z-index:2; }
  .breadcrumb{ font-size:13px; color:var(--text-low); margin-bottom:18px; display:flex; flex-wrap:wrap; gap:8px; align-items:center; }
  .breadcrumb a{ color:var(--text-mid); }
  .breadcrumb a:hover{ color:var(--neon-500); }
  .breadcrumb .sep{ color:var(--text-low); }
  .breadcrumb .cur{ color:var(--text-hi); font-weight:600; }
  .eyebrow{
    display:inline-flex; align-items:center; gap:8px; margin-bottom:18px;
    padding:5px 14px; border-radius:999px; font-size:12px; letter-spacing:.1em;
    color:var(--neon-500); background:rgba(46,230,197,.12); border:1px solid rgba(46,230,197,.28);
  }
  .page-hero h1{ font-size:44px; line-height:1.22; max-width:20ch; margin-bottom:18px; }
  .page-hero h1 em{ font-style:normal; color:var(--neon-500); }
  .page-hero-sub{ font-size:17px; line-height:1.8; color:var(--text-mid); max-width:62ch; margin-bottom:14px; }
  .page-hero-note{
    font-size:14px; line-height:1.8; color:var(--text-mid); max-width:72ch;
    padding:12px 16px; border-left:3px solid var(--neon-500); background:rgba(23,27,36,.7); border-radius:0 10px 10px 0;
    margin-bottom:26px;
  }
  .hero-actions{ display:flex; flex-wrap:wrap; gap:14px; }

  /* ============ 功能页主体 ============ */
  .fn-layout{ display:grid; grid-template-columns:200px minmax(0,1fr); gap:52px; align-items:start; }
  .anchor-nav{ position:sticky; top:96px; }
  .anchor-title{ font-size:13px; letter-spacing:.14em; color:var(--text-low); margin-bottom:16px; }
  .anchor-link{
    display:block; position:relative; padding:9px 0 9px 14px; font-size:14px; color:var(--text-mid);
    border-left:3px solid rgba(255,255,255,.09); transition:color .18s ease, border-color .18s ease;
  }
  .anchor-link:hover{ color:var(--text-hi); }
  .anchor-link.active{ color:var(--neon-500); border-left-color:var(--neon-500); text-shadow:0 0 10px rgba(46,230,197,.35); }
  .anchor-side-card{
    margin-top:26px; padding:18px; border-radius:var(--radius-card);
    background:var(--ink-800); border:1px solid var(--hairline);
  }
  .anchor-side-card p{ font-size:13px; line-height:1.75; color:var(--text-mid); margin-bottom:14px; }

  .fn-block{
    display:grid; grid-template-columns:minmax(0,1fr) 300px; gap:34px; align-items:start;
    padding:38px 0; border-top:1px solid var(--hairline); scroll-margin-top:96px;
  }
  .fn-block:first-child{ border-top:0; padding-top:0; }
  .fn-index{ display:block; font-family:var(--font-mono); font-size:15px; font-weight:700; letter-spacing:.16em; color:var(--neon-500); margin-bottom:10px; }
  .fn-title{ font-size:20px; margin-bottom:12px; }
  .fn-desc{ font-size:16px; line-height:1.85; color:var(--text-mid); max-width:72ch; }
  .fn-points{ margin-top:6px; }
  .fn-points li{
    position:relative; padding-left:20px; margin-bottom:9px;
    font-size:15px; line-height:1.8; color:var(--text-mid);
  }
  .fn-points li::before{
    content:""; position:absolute; left:0; top:.72em; width:7px; height:7px; border-radius:2px;
    background:rgba(46,230,197,.55); transform:rotate(45deg);
  }
  .fn-media{ position:relative; }
  .fn-media img{
    width:100%; aspect-ratio:16/9; object-fit:cover;
    border-radius:12px; border:1px solid var(--neon-line);
    box-shadow:var(--shadow-card);
  }
  .fn-media figcaption{ margin-top:10px; font-size:13px; color:var(--text-low); line-height:1.7; }

  /* ============ 速览条 ============ */
  .strip-section{ padding:0; }
  .stat-strip{
    display:grid; grid-template-columns:repeat(3,minmax(0,1fr));
    border-top:1px solid var(--hairline); border-bottom:1px solid var(--hairline);
    background:var(--ink-800);
  }
  .stat-item{ padding:30px 28px; border-left:1px solid var(--hairline); }
  .stat-item:first-child{ border-left:0; }
  .stat-num{ font-family:var(--font-mono); font-size:30px; font-weight:700; color:var(--neon-500); line-height:1.1; }
  .stat-label{ font-size:14px; color:var(--text-mid); margin-top:8px; }

  /* ============ 查看顺序 ============ */
  .sec-title{ position:relative; padding-left:16px; font-size:30px; margin-bottom:14px; }
  .sec-title::before{
    content:""; position:absolute; left:0; top:.2em; bottom:.2em; width:3px; border-radius:3px;
    background:linear-gradient(180deg,var(--neon-500),var(--plum-500));
  }
  .sec-sub{ font-size:15px; color:var(--text-mid); max-width:72ch; margin-bottom:38px; }
  .steps-row{ display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:28px; }
  .step{ position:relative; padding-top:22px; border-top:1px solid var(--hairline); }
  .step::before{
    content:""; position:absolute; top:-5px; left:0; width:9px; height:9px; border-radius:50%;
    background:var(--neon-500); box-shadow:0 0 12px rgba(46,230,197,.85);
  }
  .step-num{ font-family:var(--font-mono); font-size:13px; color:var(--text-low); letter-spacing:.14em; }
  .step h3{ font-size:18px; margin:8px 0 10px; }
  .step p{ font-size:15px; color:var(--text-mid); line-height:1.8; }

  /* ============ FAQ ============ */
  .faq-wrap{ display:grid; grid-template-columns:minmax(0,340px) minmax(0,1fr); gap:52px; align-items:start; }
  .faq-item{
    border:1px solid var(--hairline); border-radius:12px; background:var(--ink-800);
    margin-bottom:12px; overflow:hidden; transition:border-color .22s ease, box-shadow .22s ease;
  }
  .faq-item:hover{ border-color:rgba(46,230,197,.28); }
  .faq-item[open]{ border-color:rgba(46,230,197,.4); box-shadow:0 0 0 1px rgba(46,230,197,.14); }
  .faq-q{
    position:relative; display:flex; align-items:center; justify-content:space-between; gap:16px;
    padding:18px 20px 18px 24px; font-size:16px; font-weight:600; cursor:pointer; list-style:none;
  }
  .faq-q::-webkit-details-marker{ display:none; }
  .faq-q::before{
    content:""; position:absolute; left:0; top:15px; bottom:15px; width:3px; border-radius:3px;
    background:rgba(255,255,255,.12); transition:background .22s ease, box-shadow .22s ease;
  }
  .faq-item[open] .faq-q::before{ background:var(--neon-500); box-shadow:0 0 10px rgba(46,230,197,.75); }
  .faq-icon{
    flex:0 0 22px; width:22px; height:22px; position:relative; border:1px solid var(--hairline); border-radius:50%;
    transition:border-color .22s ease;
  }
  .faq-item[open] .faq-icon{ border-color:rgba(46,230,197,.5); }
  .faq-icon::before,.faq-icon::after{
    content:""; position:absolute; left:50%; top:50%; transform:translate(-50%,-50%);
    background:var(--neon-500); border-radius:2px;
  }
  .faq-icon::before{ width:10px; height:1.5px; }
  .faq-icon::after{ width:1.5px; height:10px; transition:opacity .22s ease; }
  .faq-item[open] .faq-icon::after{ opacity:0; }
  .faq-a{ padding:0 20px 20px 24px; font-size:15px; line-height:1.8; color:var(--text-mid); max-width:70ch; }

  /* ============ CTA ============ */
  .cta-band{
    position:relative; overflow:hidden; padding:74px 0;
    background:var(--ink-800); border-top:1px solid var(--hairline); border-bottom:1px solid var(--hairline);
  }
  .cta-band::before{
    content:""; position:absolute; inset:0;
    background:linear-gradient(115deg,transparent 18%,rgba(46,230,197,.10) 46%,rgba(177,75,255,.13) 62%,transparent 84%);
  }
  .cta-dot{ position:absolute; width:10px; height:10px; border-radius:50%; background:var(--hot-500); filter:blur(1px); }
  .cta-dot.left{ left:8%; top:32%; }
  .cta-dot.right{ right:9%; bottom:26%; background:var(--neon-500); }
  .cta-inner{ position:relative; z-index:2; max-width:760px; }
  .cta-inner h2{ font-size:30px; margin-bottom:14px; }
  .cta-inner p{ font-size:16px; color:var(--text-mid); margin-bottom:26px; }
  .cta-actions{ display:flex; flex-wrap:wrap; gap:14px; }

  /* ============ 页脚 ============ */
  .site-footer{ background:var(--ink-800); border-top:1px solid var(--hairline); padding-top:64px; }
  .footer-grid{ display:grid; grid-template-columns:1.5fr 1fr 1fr 1.5fr; gap:34px; }
  .footer-col h4{ font-size:14px; color:var(--neon-500); letter-spacing:.03em; margin-bottom:16px; }
  .footer-col p{ font-size:14px; line-height:1.85; color:var(--text-mid); }
  .footer-col ul li{ margin-bottom:10px; }
  .footer-col ul a{ display:inline-block; font-size:14px; color:var(--text-mid); transition:color .18s ease, transform .18s ease; }
  .footer-col ul a:hover{ color:#fff; transform:translateX(2px); }
  .footer-form{ display:flex; gap:8px; flex-wrap:wrap; margin-top:14px; }
  .footer-form input{
    flex:1 1 160px; min-height:44px; padding:0 14px; font-size:14px;
    background:var(--ink-900); border:1px solid var(--hairline); border-radius:10px;
    color:var(--text-hi); transition:border-color .2s ease, box-shadow .2s ease;
  }
  .footer-form input::placeholder{ color:var(--text-low); }
  .footer-form input:focus{ outline:none; border-color:var(--neon-line); box-shadow:0 0 0 4px rgba(46,230,197,.12); }
  .footer-bottom{
    margin-top:48px; padding:20px 0; border-top:1px solid var(--hairline);
    display:flex; flex-wrap:wrap; align-items:center; justify-content:space-between; gap:14px;
    font-size:13px; color:var(--text-low);
  }
  .footer-bottom .quick{ display:flex; flex-wrap:wrap; gap:18px; }
  .footer-bottom .quick a{ color:var(--text-low); }
  .footer-bottom .quick a:hover{ color:var(--neon-500); }

  /* ============ 响应式 ============ */
  @media (max-width:1024px){
    .container{ padding:0 24px; }
    .section{ padding:64px 0; }
    .rg-nav{ display:none; }
    .rg-burger{ display:flex; }
    .rg-drawer{ display:block; }
    .rg-logo-full{ display:none; }
    .rg-logo-short{ display:inline; }
    .fn-layout{ grid-template-columns:minmax(0,1fr); gap:32px; }
    .anchor-nav{ position:relative; top:0; display:flex; flex-wrap:wrap; gap:8px; padding-bottom:6px; border-bottom:1px solid var(--hairline); }
    .anchor-title{ width:100%; margin-bottom:6px; }
    .anchor-link{ border-left:0; padding:8px 14px; border:1px solid var(--hairline); border-radius:999px; font-size:13px; }
    .anchor-link.active{ border-color:var(--neon-line); background:rgba(46,230,197,.1); }
    .anchor-side-card{ display:none; }
    .fn-block{ grid-template-columns:minmax(0,1fr); gap:22px; padding:32px 0; }
    .fn-media{ max-width:520px; }
    .faq-wrap{ grid-template-columns:minmax(0,1fr); gap:32px; }
    .page-hero h1{ font-size:34px; }
    .sec-title{ font-size:26px; }
    .cta-inner h2{ font-size:26px; }
  }
  @media (max-width:768px){
    .footer-grid{ grid-template-columns:repeat(2,minmax(0,1fr)); gap:28px; }
    .stat-strip{ grid-template-columns:minmax(0,1fr); }
    .stat-item{ border-left:0; border-top:1px solid var(--hairline); padding:24px; }
    .stat-item:first-child{ border-top:0; }
    .steps-row{ grid-template-columns:minmax(0,1fr); gap:22px; }
    .page-hero{ padding:52px 0 46px; }
    .page-hero h1{ font-size:30px; }
    .page-hero-sub{ font-size:16px; }
    .hero-actions .btn{ flex:1 1 100%; }
  }
  @media (max-width:520px){
    .container{ padding:0 16px; }
    .rg-logo-text{ font-size:15px; }
    .footer-grid{ grid-template-columns:minmax(0,1fr); }
    .fn-title{ font-size:18px; }
    .faq-q{ font-size:15px; padding:16px 16px 16px 20px; }
    .faq-a{ padding:0 16px 18px 20px; font-size:14.5px; }
    .cta-actions .btn{ flex:1 1 100%; }
  }

/* roulang page: category2 */
:root{
  --ink-900:#0A0C10;
  --ink-800:#12151C;
  --ink-700:#171B24;
  --neon-500:#2EE6C5;
  --plum-500:#B14BFF;
  --hot-500:#FF4D8D;
  --amber-400:#FFC53D;
  --text-hi:#E9EEF5;
  --text-mid:#9BA6B7;
  --text-low:#5C6675;
  --hairline:rgba(255,255,255,.08);
  --neon-line:rgba(46,230,197,.45);
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --shadow-card:0 8px 24px rgba(0,0,0,.35);
  --shadow-card-hover:0 18px 40px rgba(0,0,0,.5), 0 0 0 1px rgba(46,230,197,.35);
  --sp-section:88px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text-hi);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700}
p{margin:0 0 1.1em}
ul,ol{margin:0 0 1.1em;padding-left:1.25em}
::selection{background:rgba(46,230,197,.28);color:#fff}
:focus-visible{outline:2px solid var(--hot-500);outline-offset:2px;border-radius:4px}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--ink-900)}
::-webkit-scrollbar-thumb{background:#232936;border-radius:999px;border:2px solid var(--ink-900)}
::-webkit-scrollbar-thumb:hover{background:#2d3646}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:var(--sp-section) 0}
.section-tight{padding:56px 0}
.section-alt{background:var(--ink-800);border-top:1px solid var(--hairline);border-bottom:1px solid var(--hairline)}

/* ============ 顶部导航 ============ */
.rg-header{
  position:sticky;top:0;z-index:80;
  background:rgba(10,12,16,.88);
  border-bottom:1px solid var(--hairline);
  transition:background .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.rg-header.is-stuck{
  background:rgba(10,12,16,.97);
  border-bottom-color:rgba(46,230,197,.28);
  box-shadow:0 10px 30px rgba(0,0,0,.45);
}
.rg-header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px}
.rg-logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.rg-logo svg{flex-shrink:0}
.rg-logo-text{font-size:17px;font-weight:700;letter-spacing:.01em;color:var(--text-hi)}
.rg-logo-full{display:inline}
.rg-logo-short{display:none}
.rg-nav{display:flex;align-items:center;gap:28px}
.rg-nav-link{
  position:relative;font-size:15px;color:var(--text-mid);
  padding:22px 0;transition:color .18s ease;white-space:nowrap;
}
.rg-nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:13px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--neon-500),var(--plum-500));
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.rg-nav-link:hover{color:var(--text-hi)}
.rg-nav-link:hover::after{transform:scaleX(1)}
.rg-nav-link.active{color:var(--neon-500);text-shadow:0 0 10px rgba(46,230,197,.5)}
.rg-nav-link.active::after{transform:scaleX(1)}
.rg-header-actions{display:flex;align-items:center;gap:14px;flex-shrink:0}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);padding:11px 22px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;text-align:center;white-space:nowrap;
  transition:transform .18s ease, background-color .18s ease, box-shadow .18s ease, color .18s ease, border-color .18s ease;
}
.btn-primary{background:var(--neon-500);color:#06110F}
.btn-primary:hover{
  transform:translateY(-1px);filter:brightness(1.06);
  box-shadow:0 0 0 1px rgba(46,230,197,.55), 0 12px 28px rgba(46,230,197,.28);
}
.btn-primary:active{transform:translateY(0);filter:brightness(.96)}
.btn-ghost{background:transparent;border-color:rgba(46,230,197,.5);color:var(--neon-500)}
.btn-ghost:hover{background:rgba(46,230,197,.12);transform:translateY(-1px)}
.btn-line{background:transparent;border-color:var(--hairline);color:var(--text-mid)}
.btn-line:hover{border-color:var(--neon-line);color:var(--text-hi)}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:var(--r-btn)}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--neon-500);
  font-size:14.5px;font-weight:600;background:none;border:0;padding:0;cursor:pointer;
}
.btn-link .arrow{transition:transform .18s ease}
.btn-link:hover .arrow{transform:translateX(4px)}

.rg-burger{
  display:none;width:44px;height:44px;position:relative;
  border:1px solid var(--hairline);border-radius:var(--r-btn);
  background:rgba(255,255,255,.03);cursor:pointer;
}
.rg-burger span,
.rg-burger::before,
.rg-burger::after{
  content:"";position:absolute;left:12px;right:12px;height:2px;border-radius:2px;
  background:var(--text-hi);transition:transform .2s ease, opacity .2s ease;
}
.rg-burger span{top:50%;margin-top:-1px}
.rg-burger::before{top:15px}
.rg-burger::after{bottom:15px}

/* ============ 通用标题 ============ */
.sec-head{margin-bottom:40px;max-width:800px}
.sec-eyebrow{
  display:inline-flex;align-items:center;gap:9px;font-size:12px;letter-spacing:.2em;
  color:var(--neon-500);font-family:Inter,system-ui,sans-serif;margin-bottom:14px;
}
.sec-eyebrow::before{content:"";width:22px;height:1px;background:var(--neon-500)}
.sec-title{font-size:30px;position:relative;padding-left:16px;margin-bottom:14px}
.sec-title::before{
  content:"";position:absolute;left:0;top:7px;bottom:7px;width:3px;border-radius:2px;
  background:linear-gradient(180deg,var(--neon-500),var(--plum-500));
}
.sec-desc{font-size:15.5px;color:var(--text-mid);max-width:72ch;margin:0}
.badge{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;line-height:1;
  padding:6px 12px;border-radius:999px;background:rgba(46,230,197,.12);color:var(--neon-500);
  border:1px solid rgba(46,230,197,.22);letter-spacing:.04em;
}
.badge-plum{background:rgba(177,75,255,.14);color:#D3A8FF;border-color:rgba(177,75,255,.3)}
.badge-hot{background:rgba(255,77,141,.14);color:#FF8FB4;border-color:rgba(255,77,141,.3)}
.badge-amber{background:rgba(255,197,61,.14);color:var(--amber-400);border-color:rgba(255,197,61,.3)}

/* ============ 分类头部 ============ */
.cat-hero{position:relative;overflow:hidden;padding:52px 0 46px;border-bottom:1px solid var(--hairline)}
.cat-hero-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(92deg,rgba(10,12,16,.95) 0%,rgba(10,12,16,.82) 52%,rgba(10,12,16,.56) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center 30%;
}
.cat-hero-bg::after{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(112deg,rgba(46,230,197,.055) 0 1px,transparent 1px 92px);
}
.cat-hero .container{position:relative;z-index:2}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-low)}
.crumb a{color:var(--text-mid);transition:color .18s ease}
.crumb a:hover{color:var(--neon-500)}
.crumb .cur{color:var(--text-hi);font-weight:600}
.cat-hero h1{font-size:44px;margin:18px 0 18px;max-width:22ch;letter-spacing:.005em}
.hero-sub{font-size:17px;color:var(--text-mid);max-width:62ch;margin-bottom:28px;line-height:1.8}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:34px}
.hero-stats{display:flex;gap:44px;flex-wrap:wrap;border-top:1px solid var(--hairline);padding-top:22px}
.hero-stat .num{
  font-family:Inter,system-ui,sans-serif;font-size:24px;font-weight:700;
  color:var(--neon-500);letter-spacing:.02em;line-height:1.2;
}
.hero-stat .label{font-size:13px;color:var(--text-low);margin-top:4px}
.cat-note{
  margin-top:30px;padding:16px 22px;border-left:3px solid var(--neon-500);
  background:rgba(46,230,197,.06);border-radius:0 10px 10px 0;
  font-size:15px;color:var(--text-mid);max-width:820px;
}

/* ============ 横向时间轴 ============ */
.timeline{position:relative;display:grid;grid-template-columns:repeat(5,1fr);gap:20px;margin-top:48px}
.timeline::before{
  content:"";position:absolute;top:9px;left:8px;right:8px;height:1px;
  background:linear-gradient(90deg,rgba(46,230,197,.65),rgba(177,75,255,.4),rgba(255,255,255,.06));
}
.tl-step{position:relative;padding-top:38px}
.tl-step::before{
  content:"";position:absolute;top:0;left:0;width:18px;height:18px;border-radius:50%;
  background:var(--ink-900);border:2px solid var(--neon-500);
  box-shadow:0 0 0 4px rgba(46,230,197,.1),0 0 16px rgba(46,230,197,.45);
}
.tl-num{
  font-family:Inter,system-ui,sans-serif;font-size:12px;letter-spacing:.2em;
  color:var(--neon-500);margin-bottom:6px;
}
.tl-step h3{font-size:18px;margin-bottom:10px}
.tl-step p{font-size:14.5px;color:var(--text-mid);line-height:1.8;margin:0}

/* ============ 锯齿图文 ============ */
.zig{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center;margin-top:56px}
.zig-alt{grid-template-columns:7fr 5fr}
.zig-media{margin:0;position:relative;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--neon-line);box-shadow:var(--shadow-card)}
.zig-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.zig-media figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:14px 16px;font-size:12.5px;color:var(--text-mid);
  background:linear-gradient(180deg,rgba(10,12,16,0),rgba(10,12,16,.9));
}
.zig-text h3{font-size:22px;margin:14px 0 12px}
.zig-text p{font-size:15.5px;color:var(--text-mid);line-height:1.85}
.zig-points{list-style:none;margin:0;padding:0}
.zig-points li{
  position:relative;padding-left:20px;font-size:14.5px;color:var(--text-mid);
  margin-bottom:10px;line-height:1.8;
}
.zig-points li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:2px;
  background:rgba(46,230,197,.9);box-shadow:0 0 10px rgba(46,230,197,.5);transform:rotate(45deg);
}

/* ============ 情况对照列表 ============ */
.entry-list{margin-top:44px;border-top:1px solid var(--hairline)}
.entry-row{
  display:grid;grid-template-columns:64px 200px 1fr;gap:24px;align-items:start;
  padding:24px 4px;border-bottom:1px solid var(--hairline);transition:background .18s ease;
}
.entry-row:hover{background:rgba(46,230,197,.035)}
.entry-no{
  font-family:Inter,system-ui,sans-serif;font-size:20px;font-weight:700;
  color:rgba(46,230,197,.55);letter-spacing:.04em;line-height:1.6;
}
.entry-row h3{font-size:17px;line-height:1.6}
.entry-row p{margin:0;font-size:14.5px;color:var(--text-mid);line-height:1.8}

/* ============ 窄 CTA ============ */
.cta-strip{
  position:relative;overflow:hidden;margin-top:12px;padding:38px 36px;
  border:1px solid rgba(46,230,197,.28);border-radius:16px;
  background:linear-gradient(118deg,rgba(46,230,197,.11) 0%,rgba(177,75,255,.1) 52%,rgba(10,12,16,0) 88%),var(--ink-800);
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  box-shadow:var(--shadow-card);
}
.cta-strip::after{
  content:"";position:absolute;right:-40px;top:-60px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(46,230,197,.22),transparent 68%);pointer-events:none;
}
.cta-strip h2{font-size:24px;margin-bottom:10px}
.cta-strip p{margin:0;font-size:15px;color:var(--text-mid);max-width:60ch}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-800);border-top:1px solid var(--hairline);padding:64px 0 0;margin-top:var(--sp-section)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:40px}
.footer-col h4{font-size:14px;color:var(--neon-500);letter-spacing:.08em;margin-bottom:16px}
.footer-col p{font-size:14px;color:var(--text-mid);line-height:1.8;margin:0 0 14px}
.footer-col ul{list-style:none;margin:0;padding:0}
.footer-col li{margin-bottom:10px}
.footer-col a{
  display:inline-block;font-size:14px;color:var(--text-mid);
  transition:color .18s ease, transform .18s ease;
}
.footer-col a:hover{color:#fff;transform:translateX(2px)}
.footer-form{display:flex;gap:10px;flex-wrap:wrap;margin-top:6px}
.footer-form input{
  flex:1 1 170px;min-width:0;background:var(--ink-900);border:1px solid var(--hairline);
  border-radius:var(--r-btn);padding:10px 14px;font-size:14px;color:var(--text-hi);
  transition:border-color .18s ease, box-shadow .18s ease;
}
.footer-form input::placeholder{color:var(--text-low)}
.footer-form input:focus{outline:none;border-color:var(--neon-500);box-shadow:0 0 0 4px rgba(46,230,197,.14)}
.footer-form input:focus-visible{outline:2px solid var(--hot-500);outline-offset:1px}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--hairline);margin-top:46px;padding:20px 0 30px;
  font-size:13px;color:var(--text-low);
}
.footer-bottom p{margin:0}
.footer-bottom .quick{display:flex;gap:20px;flex-wrap:wrap}
.footer-bottom .quick a{color:var(--text-low);transition:color .18s ease}
.footer-bottom .quick a:hover{color:var(--neon-500)}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  :root{--sp-section:72px}
  .container{padding:0 24px}
  .rg-nav{gap:20px}
  .rg-nav-link{font-size:14.5px}
  .cat-hero h1{font-size:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .timeline{
    display:flex;overflow-x:auto;gap:18px;padding-bottom:14px;
    scroll-snap-type:x mandatory;
  }
  .timeline::before{display:none}
  .tl-step{flex:0 0 250px;scroll-snap-align:start}
  .zig,.zig-alt{grid-template-columns:1fr;gap:26px}
  .zig-alt .zig-text{order:2}
  .zig-alt .zig-media{order:1}
  .entry-row{grid-template-columns:52px 1fr;gap:16px}
  .entry-row p{grid-column:2}
}

@media (max-width:900px){
  .rg-nav{
    position:fixed;left:0;right:0;top:68px;bottom:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:var(--ink-900);
    background-image:repeating-linear-gradient(0deg,rgba(255,255,255,.03) 0 1px,transparent 1px 44px),
                     repeating-linear-gradient(90deg,rgba(255,255,255,.03) 0 1px,transparent 1px 44px);
    padding:12px 20px 40px;overflow-y:auto;
    transform:translateY(-10px);opacity:0;visibility:hidden;
    transition:opacity .22s ease, transform .22s ease, visibility .22s;
    border-top:1px solid var(--hairline);
  }
  .rg-nav.is-open{transform:none;opacity:1;visibility:visible}
  .rg-nav-link{
    font-size:18px;line-height:56px;padding:0 0 0 16px;
    border-bottom:1px solid var(--hairline);
  }
  .rg-nav-link::after{display:none}
  .rg-nav-link.active{border-left:3px solid var(--neon-500);text-shadow:none}
  .rg-burger{display:block}
}

@media (max-width:640px){
  :root{--sp-section:56px}
  .container{padding:0 16px}
  .rg-header-inner{gap:12px}
  .rg-logo-full{display:none}
  .rg-logo-short{display:inline}
  .rg-logo-text{font-size:16px}
  .rg-cta{padding:9px 14px;font-size:13.5px}
  .cat-hero{padding:36px 0 34px}
  .cat-hero h1{font-size:30px}
  .hero-sub{font-size:15.5px}
  .hero-actions{gap:10px}
  .hero-actions .btn{width:100%}
  .hero-stats{gap:26px}
  .sec-title{font-size:23px}
  .sec-desc{font-size:15px}
  .zig-text h3{font-size:19px}
  .tl-step{flex:0 0 78%}
  .entry-row{grid-template-columns:44px 1fr;padding:20px 2px}
  .cta-strip{padding:28px 22px}
  .cta-strip h2{font-size:20px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category3 */
:root{
  --ink-900:#0A0C10;
  --ink-800:#12151C;
  --ink-700:#171B24;
  --neon-500:#2EE6C5;
  --plum-500:#B14BFF;
  --hot-500:#FF4D8D;
  --amber-400:#FFC53D;
  --text-hi:#E9EEF5;
  --text-mid:#9BA6B7;
  --text-low:#5C6675;
  --hairline:rgba(255,255,255,.08);
  --neon-line:rgba(46,230,197,.45);
  --neon-soft:rgba(46,230,197,.12);
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 8px 24px rgba(0,0,0,.35);
  --sh-2:0 18px 40px rgba(0,0,0,.5), 0 0 0 1px rgba(46,230,197,.35);
  --maxw:1200px;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",Inter,system-ui,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text-hi);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700}
p{margin:0 0 1.1em}
button,input{font-family:inherit}
::selection{background:rgba(46,230,197,.28);color:#fff}

:focus-visible{outline:2px solid var(--hot-500);outline-offset:2px;border-radius:6px}
a:focus:not(:focus-visible),button:focus:not(:focus-visible){outline:none}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 32px}

/* ---------- 顶部导航 ---------- */
.rg-header{
  position:sticky;top:0;z-index:80;
  height:68px;
  background:rgba(10,12,16,.88);
  border-bottom:1px solid var(--hairline);
  transition:background .25s ease,box-shadow .25s ease;
}
.rg-header.is-stuck{
  background:rgba(10,12,16,.98);
  box-shadow:0 10px 30px rgba(0,0,0,.45);
}
.rg-header.is-stuck::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(46,230,197,.7),rgba(177,75,255,.55),transparent);
}
.rg-header-inner{display:flex;align-items:center;gap:28px;height:100%}

.rg-logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.rg-logo svg{flex-shrink:0;filter:drop-shadow(0 0 6px rgba(46,230,197,.35))}
.rg-logo-text{font-size:15.5px;font-weight:700;letter-spacing:.02em;color:var(--text-hi)}
.rg-logo-short{display:none}

.rg-nav{display:flex;align-items:center;gap:2px;margin:0 auto}
.rg-nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:10px 14px;font-size:15px;color:var(--text-mid);
  border-radius:8px;transition:color .18s ease;
}
.rg-nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--neon-500);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.rg-nav-link:hover{color:var(--text-hi)}
.rg-nav-link:hover::after{transform:scaleX(1)}
.rg-nav-link.active{
  color:var(--neon-500);
  text-shadow:0 0 12px rgba(46,230,197,.5);
}
.rg-nav-link.active::after{transform:scaleX(1);box-shadow:0 0 8px rgba(46,230,197,.7)}

.rg-header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.rg-cta{
  clip-path:polygon(10px 0,100% 0,100% calc(100% - 10px),calc(100% - 10px) 100%,0 100%,0 10px);
  border-radius:0 !important;
  min-height:40px;padding:0 20px;
}
.rg-burger{
  display:none;width:44px;height:44px;border:1px solid var(--hairline);
  background:transparent;border-radius:10px;position:relative;cursor:pointer;
}
.rg-burger span,.rg-burger span::before,.rg-burger span::after{
  position:absolute;left:50%;transform:translateX(-50%);
  width:18px;height:1.6px;background:var(--text-hi);border-radius:2px;
  transition:transform .2s ease,opacity .2s ease;
}
.rg-burger span{top:21px}
.rg-burger span::before{content:"";top:-6px;left:0;transform:none;width:18px;position:absolute}
.rg-burger span::after{content:"";top:6px;left:0;transform:none;width:18px;position:absolute}
.rg-burger.is-open span{background:transparent}
.rg-burger.is-open span::before{transform:translateY(6px) rotate(45deg);top:0;left:0}
.rg-burger.is-open span::after{transform:translateY(-6px) rotate(-45deg);top:0;left:0}

.rg-drawer{
  position:fixed;inset:68px 0 0 0;z-index:70;
  background:var(--ink-900);
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:44px 44px;
  padding:24px 16px 40px;
  display:none;flex-direction:column;overflow-y:auto;
}
.rg-drawer.is-open{display:flex}
.rg-drawer a.d-item{
  display:flex;align-items:center;height:56px;padding:0 16px;
  font-size:18px;color:var(--text-hi);border-bottom:1px solid var(--hairline);
  position:relative;
}
.rg-drawer a.d-item.active{color:var(--neon-500)}
.rg-drawer a.d-item.active::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;
  background:var(--neon-500);border-radius:3px;box-shadow:0 0 10px rgba(46,230,197,.6);
}
.rg-drawer .d-cta{margin-top:24px;width:100%}
.rg-drawer .d-copy{
  margin-top:20px;font-size:12.5px;color:var(--text-low);text-align:center;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;
  font-size:15px;font-weight:600;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .18s ease,background .18s ease,box-shadow .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{
  background:var(--neon-500);color:#07110E;
}
.btn-primary:hover{
  transform:translateY(-1px);
  filter:brightness(1.06);
  box-shadow:0 0 0 1px rgba(46,230,197,.5),0 10px 26px rgba(46,230,197,.28);
}
.btn-outline{
  background:transparent;color:var(--neon-500);
  border-color:rgba(46,230,197,.5);
}
.btn-outline:hover{background:rgba(46,230,197,.12);transform:translateY(-1px)}
.btn-ghost{
  background:transparent;color:var(--text-hi);padding:0 4px;min-height:40px;
}
.btn-ghost svg{transition:transform .18s ease}
.btn-ghost:hover{color:var(--neon-500)}
.btn-ghost:hover svg{transform:translateX(4px)}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  font-size:12px;letter-spacing:.04em;
  background:var(--neon-soft);color:var(--neon-500);
  border:1px solid rgba(46,230,197,.22);
}
.badge-plum{background:rgba(177,75,255,.14);color:#D9A6FF;border-color:rgba(177,75,255,.3)}
.badge-hot{background:rgba(255,77,141,.14);color:#FF9BBC;border-color:rgba(255,77,141,.3)}
.badge-amber{background:rgba(255,197,61,.14);color:var(--amber-400);border-color:rgba(255,197,61,.3)}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-low);margin-bottom:18px}
.breadcrumb a{color:var(--text-mid);transition:color .18s ease}
.breadcrumb a:hover{color:var(--neon-500)}
.breadcrumb .sep{color:var(--text-low)}
.breadcrumb .cur{color:var(--text-hi);font-weight:600}

/* ---------- 内页首屏 ---------- */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--hairline)}
.page-hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.3}
.page-hero-mask{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,12,16,.55) 0%,rgba(10,12,16,.9) 60%,var(--ink-900) 100%);
}
.page-hero-inner{position:relative;z-index:2;padding-top:70px;padding-bottom:62px;max-width:900px}
.page-hero h1{
  font-size:44px;line-height:1.25;letter-spacing:.01em;margin:18px 0 18px;
}
.page-hero h1 em{
  font-style:normal;
  background:linear-gradient(92deg,var(--neon-500),#7EF3DE 45%,rgba(177,75,255,.9));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.page-hero-sub{font-size:17px;color:var(--text-mid);max-width:62ch;line-height:1.8}
.page-hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-foot{
  display:flex;flex-wrap:wrap;gap:28px;margin-top:38px;padding-top:22px;
  border-top:1px solid var(--hairline);
}
.hero-foot .hf{min-width:120px}
.hero-foot .hf b{display:block;font-size:22px;font-family:Inter,system-ui,sans-serif;color:var(--neon-500);letter-spacing:.02em}
.hero-foot .hf span{font-size:13px;color:var(--text-low)}

/* ---------- 栏目说明条 ---------- */
.notice-bar{
  border-bottom:1px solid var(--hairline);
  background:var(--ink-800);
}
.notice-bar .inner{
  display:flex;align-items:center;gap:16px;
  padding:18px 0;font-size:14.5px;color:var(--text-mid);
}
.notice-bar .dot{
  width:8px;height:8px;border-radius:50%;background:var(--neon-500);
  box-shadow:0 0 10px rgba(46,230,197,.8);flex-shrink:0;
}

/* ---------- 板块通用 ---------- */
.section{padding:88px 0}
.section-tight{padding:64px 0}
.section-head{margin-bottom:40px;max-width:760px}
.section-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.16em;color:var(--neon-500);text-transform:uppercase;
  margin-bottom:14px;
}
.section-eyebrow::before{content:"";width:22px;height:1px;background:var(--neon-500)}
.section h2{font-size:30px;line-height:1.3}
.section-sub{margin-top:12px;color:var(--text-mid);font-size:15.5px;line-height:1.8}

/* ---------- 双栏阅读布局 ---------- */
.doc-wrap{
  display:grid;
  grid-template-columns:minmax(0,1fr) 264px;
  gap:56px;
  align-items:start;
}
.doc-main{min-width:0}

.toc{
  position:sticky;top:96px;
  background:var(--ink-800);
  border:1px solid var(--hairline);
  border-radius:var(--r-card);
  padding:20px 18px;
}
.toc h3{
  font-size:13px;letter-spacing:.12em;color:var(--neon-500);
  text-transform:uppercase;margin-bottom:14px;font-weight:700;
}
.toc ol{display:flex;flex-direction:column;gap:2px}
.toc a{
  display:flex;gap:10px;align-items:flex-start;
  padding:8px 10px;border-radius:8px;
  font-size:13.5px;color:var(--text-mid);line-height:1.6;
  border-left:2px solid transparent;
  transition:color .18s ease,background .18s ease,border-color .18s ease;
}
.toc a .idx{font-family:Inter,system-ui,sans-serif;font-size:12px;color:var(--text-low);padding-top:2px}
.toc a:hover{color:var(--text-hi);background:rgba(255,255,255,.04)}
.toc a.active{color:var(--neon-500);border-left-color:var(--neon-500);background:rgba(46,230,197,.08)}
.toc a.active .idx{color:var(--neon-500)}

/* ---------- 长文排版 ---------- */
.prose-rg{max-width:72ch;font-size:16px;line-height:1.85;color:#D6DEE9}
.prose-rg p{margin:0 0 1.1em}
.prose-rg .lead{font-size:17px;color:var(--text-hi);line-height:1.9}
.prose-rg h2{
  position:relative;font-size:26px;line-height:1.35;color:var(--text-hi);
  margin:52px 0 18px;padding-left:16px;scroll-margin-top:96px;
}
.prose-rg h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;
  background:var(--neon-500);border-radius:3px;
  box-shadow:0 0 10px rgba(46,230,197,.55);
}
.prose-rg h2 .h2-num{
  display:block;font-size:12px;letter-spacing:.2em;color:var(--neon-500);
  font-family:Inter,system-ui,sans-serif;margin-bottom:6px;font-weight:600;
}
.prose-rg h3{
  font-size:19px;color:var(--text-hi);margin:30px 0 12px;font-weight:700;
}
.prose-rg ul.list-neon,.prose-rg ol.list-neon{margin:0 0 1.2em}
.prose-rg ul.list-neon li,.prose-rg ol.list-neon li{
  position:relative;padding-left:22px;margin-bottom:9px;color:#C8D2DF;
}
.prose-rg ul.list-neon li::before{
  content:"";position:absolute;left:2px;top:.72em;
  width:6px;height:6px;border-radius:2px;
  background:var(--neon-500);box-shadow:0 0 8px rgba(46,230,197,.6);
}
.prose-rg ol.list-neon{counter-reset:rglist}
.prose-rg ol.list-neon li{counter-increment:rglist;padding-left:30px}
.prose-rg ol.list-neon li::before{
  content:counter(rglist,decimal-leading-zero);
  position:absolute;left:0;top:0;
  font-family:Inter,system-ui,sans-serif;font-size:12.5px;
  color:var(--neon-500);letter-spacing:.04em;
}
.prose-rg blockquote{
  margin:26px 0;padding:16px 20px;
  border-left:3px solid var(--hairline);
  background:rgba(255,255,255,.03);border-radius:0 10px 10px 0;
  color:var(--text-mid);font-size:15px;
}
.prose-rg figure{margin:30px 0}
.prose-rg figure img{
  width:100%;border-radius:var(--r-img);
  border:1px solid var(--hairline);
}
.prose-rg figcaption{
  margin-top:10px;text-align:center;font-size:12.5px;color:var(--text-low);
}
.prose-rg .callout{
  margin:26px 0;padding:18px 20px;
  background:var(--ink-800);
  border:1px solid var(--hairline);
  border-left:3px solid var(--neon-line);
  border-radius:0 12px 12px 0;
}
.prose-rg .callout strong{color:var(--neon-500)}

/* ---------- 步骤条 ---------- */
.step-line{
  display:grid;grid-template-columns:repeat(5,1fr);gap:0;
  margin:34px 0 8px;position:relative;
}
.step-line::before{
  content:"";position:absolute;left:6%;right:6%;top:9px;height:1px;
  background:linear-gradient(90deg,rgba(46,230,197,.5),rgba(177,75,255,.4));
}
.step-line .step{position:relative;padding:0 12px;text-align:center}
.step-line .node{
  width:18px;height:18px;border-radius:50%;margin:0 auto 14px;
  background:var(--ink-900);border:1px solid var(--neon-line);
  box-shadow:0 0 12px rgba(46,230,197,.45);
  position:relative;z-index:2;
}
.step-line .step b{display:block;font-size:14px;color:var(--text-hi);margin-bottom:6px}
.step-line .step span{font-size:12.5px;color:var(--text-low);line-height:1.7;display:block}

/* ---------- 检查清单 ---------- */
.check-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin:30px 0 8px;
}
.check-card{
  background:var(--ink-800);border:1px solid var(--hairline);
  border-radius:var(--r-card);padding:20px;
  transition:box-shadow .2s ease,border-color .2s ease,transform .2s ease;
}
.check-card:hover{
  transform:translateY(-2px);
  border-color:var(--neon-line);
  box-shadow:var(--sh-1);
}
.check-card .ci{
  width:26px;height:26px;border-radius:8px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(46,230,197,.12);color:var(--neon-500);
  font-family:Inter,system-ui,sans-serif;font-size:12px;font-weight:700;
  margin-bottom:12px;
}
.check-card h4{font-size:15.5px;margin-bottom:8px;color:var(--text-hi)}
.check-card p{font-size:13.5px;color:var(--text-mid);line-height:1.75;margin:0}

/* ---------- 表格 ---------- */
.table-wrap{
  margin:30px 0;border:1px solid var(--hairline);border-radius:var(--r-card);
  overflow:hidden;background:var(--ink-800);
}
table.rg-table{width:100%;border-collapse:collapse;font-size:14.5px}
table.rg-table thead th{
  text-align:left;padding:14px 18px;font-size:13px;letter-spacing:.06em;
  color:var(--neon-500);background:rgba(46,230,197,.06);
  border-bottom:1px solid var(--hairline);font-weight:600;
}
table.rg-table td{
  padding:14px 18px;color:#C0CAD8;border-bottom:1px solid var(--hairline);
  vertical-align:top;line-height:1.75;
}
table.rg-table tbody tr:nth-child(even) td{background:rgba(255,255,255,.022)}
table.rg-table tbody tr:last-child td{border-bottom:none}
table.rg-table td:first-child{color:var(--text-hi);font-weight:600;white-space:nowrap}

/* ---------- 常见误区对照（深色区块） ---------- */
.mis-block{background:var(--ink-800);border-top:1px solid var(--hairline);border-bottom:1px solid var(--hairline)}
.mis-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:36px}
.mis-card{
  background:var(--ink-900);border:1px solid var(--hairline);
  border-radius:var(--r-card);padding:24px;position:relative;overflow:hidden;
}
.mis-card::before{
  content:"";position:absolute;left:0;top:0;width:100%;height:2px;
  background:linear-gradient(90deg,var(--neon-500),rgba(177,75,255,.7));
}
.mis-card .tag{font-size:12px;letter-spacing:.1em;color:var(--hot-500);display:block;margin-bottom:10px}
.mis-card h3{font-size:18px;margin-bottom:10px}
.mis-card p{font-size:14px;color:var(--text-mid);line-height:1.8;margin:0 0 10px}
.mis-card .fix{font-size:14px;color:var(--neon-500);margin:0}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:minmax(0,320px) minmax(0,1fr);gap:56px;align-items:start}
.faq-list{border-top:1px solid var(--hairline)}
.faq-item{border-bottom:1px solid var(--hairline)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  background:transparent;border:none;color:var(--text-hi);
  padding:22px 0 22px 16px;font-size:16.5px;font-weight:600;text-align:left;
  cursor:pointer;position:relative;transition:color .18s ease;
}
.faq-q::before{
  content:"";position:absolute;left:0;top:20px;bottom:20px;width:3px;
  background:var(--hairline);border-radius:3px;transition:background .2s ease,box-shadow .2s ease;
}
.faq-item.open .faq-q::before{background:var(--neon-500);box-shadow:0 0 10px rgba(46,230,197,.6)}
.faq-q:hover{color:var(--neon-500)}
.faq-sign{
  flex-shrink:0;width:22px;height:22px;position:relative;
}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;background:var(--neon-500);border-radius:2px;
  transition:transform .22s ease,opacity .22s ease;
}
.faq-sign::before{left:0;top:10px;width:22px;height:1.6px}
.faq-sign::after{left:10px;top:0;width:1.6px;height:22px}
.faq-item.open .faq-sign::after{transform:rotate(90deg);opacity:0}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .3s ease;
}
.faq-a-inner{
  padding:0 0 24px 16px;font-size:14.8px;color:var(--text-mid);line-height:1.85;max-width:68ch;
}

/* ---------- CTA 条 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--ink-800);
  border-top:1px solid var(--hairline);border-bottom:1px solid var(--hairline);
}
.cta-band::before{
  content:"";position:absolute;top:-120px;left:-60px;width:520px;height:340px;
  background:linear-gradient(115deg,rgba(46,230,197,.18),transparent 62%);
  transform:rotate(-8deg);pointer-events:none;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;bottom:-140px;width:420px;height:300px;
  background:linear-gradient(115deg,rgba(177,75,255,.2),transparent 65%);
  transform:rotate(-8deg);pointer-events:none;
}
.cta-inner{
  position:relative;z-index:2;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:28px;padding:54px 0;
}
.cta-inner h2{font-size:26px;margin-bottom:10px}
.cta-inner p{color:var(--text-mid);font-size:15px;margin:0;max-width:56ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 返回入口 ---------- */
.back-line{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:18px;padding:34px 0 0;border-top:1px solid var(--hairline);margin-top:46px;
}
.back-line p{margin:0;font-size:14px;color:var(--text-low)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);border-top:1px solid var(--hairline);padding:64px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px}
.footer-col h4{
  font-size:14px;color:var(--neon-500);letter-spacing:.05em;margin-bottom:16px;
}
.footer-col p{font-size:13.5px;color:var(--text-mid);line-height:1.85;margin:0}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col ul a{
  font-size:14px;color:var(--text-mid);display:inline-block;
  transition:color .18s ease,transform .18s ease;
}
.footer-col ul a:hover{color:#fff;transform:translateX(2px)}
.footer-form{margin-top:16px;display:flex;gap:10px;flex-wrap:wrap}
.footer-form input{
  flex:1 1 160px;min-height:44px;padding:0 14px;
  background:var(--ink-800);border:1px solid var(--hairline);
  border-radius:var(--r-btn);color:var(--text-hi);font-size:14px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.footer-form input::placeholder{color:var(--text-low)}
.footer-form input:focus{
  outline:none;border-color:var(--neon-line);
  box-shadow:0 0 0 4px rgba(46,230,197,.12);
}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid var(--hairline);
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
}
.footer-bottom p{margin:0;font-size:13px;color:var(--text-low)}
.footer-bottom .quick{display:flex;gap:20px;flex-wrap:wrap}
.footer-bottom .quick a{font-size:13px;color:var(--text-mid);transition:color .18s ease}
.footer-bottom .quick a:hover{color:var(--neon-500)}

/* ---------- 装饰 ---------- */
.glow-dot{
  position:absolute;width:6px;height:6px;border-radius:50%;
  background:var(--neon-500);box-shadow:0 0 14px rgba(46,230,197,.9);
}
.glow-dot.plum{background:var(--plum-500);box-shadow:0 0 14px rgba(177,75,255,.9)}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .container{padding:0 24px}
  .rg-nav{display:none}
  .rg-burger{display:block}
  .rg-header-actions .rg-cta{display:none}
  .rg-header-inner{justify-content:space-between}
  .doc-wrap{grid-template-columns:1fr;gap:40px}
  .toc{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .faq-wrap{grid-template-columns:1fr;gap:28px}
  .check-grid{grid-template-columns:1fr 1fr}
  .mis-grid{grid-template-columns:1fr}
  .step-line{grid-template-columns:1fr 1fr;gap:20px}
  .step-line::before{display:none}
  .page-hero h1{font-size:34px}
  .section{padding:72px 0}
}
@media (max-width:768px){
  .page-hero-inner{padding-top:52px;padding-bottom:48px}
  .page-hero h1{font-size:30px}
  .page-hero-sub{font-size:15.5px}
  .section{padding:56px 0}
  .section h2{font-size:23px}
  .prose-rg h2{font-size:22px;margin-top:42px}
  .cta-inner{padding:42px 0}
  .cta-inner h2{font-size:22px}
  .btn{min-height:46px}
  .page-hero-actions .btn{width:100%}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
}
@media (max-width:640px){
  .container{padding:0 16px}
  .rg-logo-full{display:none}
  .rg-logo-short{display:inline}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .check-grid{grid-template-columns:1fr}
  .step-line{grid-template-columns:1fr}
  .hero-foot{gap:20px}
  .hero-foot .hf{min-width:calc(50% - 10px)}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  table.rg-table{font-size:13.5px}
  table.rg-table thead th,table.rg-table td{padding:12px 12px}
}

/* roulang page: category4 */
:root{
  --ink-900:#0A0C10;
  --ink-800:#12151C;
  --ink-700:#171B24;
  --neon-500:#2EE6C5;
  --plum-500:#B14BFF;
  --hot-500:#FF4D8D;
  --amber-400:#FFC53D;
  --text-hi:#E9EEF5;
  --text-mid:#9BA6B7;
  --text-low:#5C6675;
  --hairline:rgba(255,255,255,.08);
  --neon-line:rgba(46,230,197,.45);
  --radius-card:14px;
  --radius-btn:10px;
  --shadow-card:0 8px 24px rgba(0,0,0,.35);
  --shadow-lift:0 18px 40px rgba(0,0,0,.5);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text-hi);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .18s ease,opacity .18s ease}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:.2px}
p{margin:0 0 1.1em}
table{border-collapse:collapse;width:100%}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
input{font-family:inherit}
:focus{outline:none}
:focus-visible{outline:2px solid var(--hot-500);outline-offset:2px}
::selection{background:rgba(46,230,197,.28);color:#fff}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:#0d1015}
::-webkit-scrollbar-thumb{background:#242a35;border-radius:999px;border:2px solid #0d1015}
::-webkit-scrollbar-thumb:hover{background:#33404f}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:88px 0}
.section-tight{padding:64px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--neon-500);border:1px solid var(--neon-line);
  background:rgba(46,230,197,.08);border-radius:999px;padding:5px 14px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:999px;background:var(--neon-500);animation:pulseDot 2.4s ease-in-out infinite}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:40px;flex-wrap:wrap}
.section-head h2{font-size:30px;position:relative;padding-left:16px}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:2px;
  background:linear-gradient(180deg,var(--neon-500),rgba(177,75,255,.7));
}
.section-head p{color:var(--text-mid);max-width:52ch;margin:0;font-size:15px}
.lead{color:var(--text-mid);font-size:16px;max-width:72ch}
.muted{color:var(--text-low);font-size:13px}
.divider{height:1px;background:var(--hairline);border:0;margin:0}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px}
.btn-primary{background:var(--neon-500);color:#06231e;box-shadow:0 6px 18px rgba(46,230,197,.22)}
.btn-primary:hover{background:#4cf0d4;transform:translateY(-1px);box-shadow:0 10px 28px rgba(46,230,197,.34)}
.btn-ghost{border:1px solid rgba(46,230,197,.5);color:var(--neon-500);background:transparent}
.btn-ghost:hover{background:rgba(46,230,197,.12);transform:translateY(-1px)}
.btn-text{color:var(--neon-500);padding:0;min-height:auto;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.btn-text .arw{transition:transform .18s ease}
.btn-text:hover .arw{transform:translateX(4px)}
.btn:active{transform:translateY(0)}

/* 徽章 */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;line-height:1;font-weight:600;
  padding:6px 12px;border-radius:999px;
  background:rgba(46,230,197,.12);color:var(--neon-500);
  border:1px solid rgba(46,230,197,.28);
}
.badge-plum{background:rgba(177,75,255,.14);color:#c88bff;border-color:rgba(177,75,255,.32)}
.badge-amber{background:rgba(255,197,61,.14);color:var(--amber-400);border-color:rgba(255,197,61,.3)}
.badge-hot{background:rgba(255,77,141,.14);color:#ff7ea9;border-color:rgba(255,77,141,.3)}

/* 头部 */
.rg-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,12,16,.88);
  border-bottom:1px solid var(--hairline);
  backdrop-filter:saturate(140%) blur(6px);
  transition:background-color .25s ease,box-shadow .25s ease;
}
.rg-header.is-stuck{background:rgba(10,12,16,.96);box-shadow:0 10px 30px rgba(0,0,0,.45)}
.rg-header.is-stuck::after{
  content:"";display:block;height:1px;
  background:linear-gradient(90deg,rgba(46,230,197,0),rgba(46,230,197,.7),rgba(177,75,255,.5),rgba(46,230,197,0));
}
.rg-header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:68px}
.rg-logo{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:17px;letter-spacing:.4px}
.rg-logo svg{flex:0 0 28px}
.rg-logo-text{display:inline-block}
.rg-logo-short{display:none}
.rg-logo:hover .rg-logo-full{color:var(--neon-500)}
.rg-nav{display:flex;align-items:center;gap:4px}
.rg-nav-link{
  position:relative;display:inline-flex;align-items:center;height:68px;
  padding:0 14px;font-size:15px;color:var(--text-mid);
}
.rg-nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:16px;height:2px;border-radius:2px;
  background:var(--neon-500);transform:scaleX(0);transform-origin:center;transition:transform .2s ease;
}
.rg-nav-link:hover{color:var(--text-hi)}
.rg-nav-link:hover::after{transform:scaleX(1)}
.rg-nav-link.active{color:var(--neon-500);text-shadow:0 0 8px rgba(46,230,197,.55)}
.rg-nav-link.active::after{transform:scaleX(1)}
.rg-header-actions{display:flex;align-items:center;gap:12px}
.rg-cta{clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px)}
.rg-burger{display:none;width:44px;height:44px;border:1px solid var(--hairline);border-radius:10px;align-items:center;justify-content:center}
.rg-burger span{display:block;width:18px;height:2px;background:var(--text-hi);position:relative;transition:background-color .2s ease}
.rg-burger span::before,.rg-burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text-hi);transition:transform .2s ease}
.rg-burger span::before{top:-6px}
.rg-burger span::after{top:6px}
.rg-burger[aria-expanded="true"] span{background:transparent}
.rg-burger[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg)}
.rg-burger[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg)}
.rg-drawer{
  position:fixed;inset:68px 0 0 0;z-index:55;background:var(--ink-900);
  background-image:linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:44px 44px;
  transform:translateY(-8px);opacity:0;pointer-events:none;transition:opacity .24s ease,transform .24s ease;
  overflow-y:auto;
}
.rg-drawer.is-open{opacity:1;transform:translateY(0);pointer-events:auto}
.rg-drawer-inner{padding:16px 24px 40px}
.rg-drawer a.d-item{
  display:flex;align-items:center;height:56px;font-size:18px;color:var(--text-mid);
  border-bottom:1px solid var(--hairline);padding-left:14px;position:relative;
}
.rg-drawer a.d-item.active{color:var(--neon-500)}
.rg-drawer a.d-item.active::before{content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:2px;background:var(--neon-500);box-shadow:0 0 10px rgba(46,230,197,.6)}
.rg-drawer .d-cta{margin-top:24px;width:100%}
.rg-drawer .d-copy{margin-top:16px;font-size:13px;color:var(--text-low);text-align:center}

/* 面包屑 */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-low);margin-bottom:18px}
.breadcrumb a:hover{color:var(--neon-500)}
.breadcrumb .sep{color:var(--text-low);opacity:.7}
.breadcrumb .cur{color:var(--text-mid);font-weight:600}

/* 页面 Hero */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--hairline)}
.page-hero .hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.36}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(110deg,rgba(10,12,16,.96) 0%,rgba(10,12,16,.82) 46%,rgba(10,12,16,.62) 100%);
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(115deg,rgba(46,230,197,.045) 0 1px,transparent 1px 12px);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;padding:84px 0 72px}
.hero-inner h1{font-size:44px;line-height:1.22;margin:20px 0 18px;max-width:22ch}
.hero-inner h1 .glow{
  background:linear-gradient(96deg,var(--neon-500) 0%,#7fe9ff 42%,var(--plum-500) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{color:var(--text-mid);font-size:17px;max-width:62ch;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:40px}
.hero-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;max-width:760px}
.hero-stat{border-left:2px solid var(--neon-line);padding-left:14px}
.hero-stat b{display:block;font-size:24px;color:var(--text-hi);font-family:"Inter",system-ui,sans-serif;letter-spacing:.5px}
.hero-stat span{font-size:13px;color:var(--text-mid)}

/* 栏目说明行 */
.note-line{
  border-top:1px solid var(--hairline);border-bottom:1px solid var(--hairline);
  background:var(--ink-800);
}
.note-line .inner{display:flex;align-items:center;gap:16px;padding:20px 0;font-size:15px;color:var(--text-mid)}
.note-line .mark{flex:0 0 3px;height:22px;border-radius:2px;background:linear-gradient(180deg,var(--neon-500),var(--plum-500))}

/* 通用卡片 */
.card{
  background:var(--ink-800);border:1px solid var(--hairline);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.card:hover{border-color:var(--neon-line);box-shadow:var(--shadow-lift);transform:translateY(-3px)}

/* 权益概览 */
.rights-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:stretch}
.rights-list{display:grid;gap:16px}
.right-item{display:flex;gap:16px;padding:20px;background:var(--ink-800);border:1px solid var(--hairline);border-radius:var(--radius-card)}
.right-item .num{font-family:"Inter",system-ui,sans-serif;font-size:13px;color:var(--neon-500);letter-spacing:.1em;padding-top:2px}
.right-item h3{font-size:18px;margin-bottom:6px}
.right-item p{margin:0;color:var(--text-mid);font-size:15px}
.rights-media{position:relative;border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--neon-line);min-height:280px}
.rights-media img{width:100%;height:100%;object-fit:cover}
.rights-media .cap{
  position:absolute;left:0;right:0;bottom:0;padding:18px 20px;
  background:linear-gradient(180deg,rgba(10,12,16,0),rgba(10,12,16,.92));
  font-size:14px;color:var(--text-mid);
}

/* 方案卡 */
.plan-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;align-items:stretch}
.plan-card{
  position:relative;display:flex;flex-direction:column;
  background:var(--ink-800);border:1px solid var(--hairline);border-radius:var(--radius-card);
  padding:30px 26px;box-shadow:var(--shadow-card);
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.plan-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift);border-color:var(--neon-line)}
.plan-card.is-featured{
  border-color:var(--neon-line);
  box-shadow:0 18px 40px rgba(0,0,0,.5),0 0 0 1px rgba(46,230,197,.25);
  background:linear-gradient(180deg,rgba(46,230,197,.06),rgba(18,21,28,1) 42%);
}
.plan-card.is-featured::before{
  content:"";position:absolute;left:0;right:0;top:0;height:3px;border-radius:14px 14px 0 0;
  background:linear-gradient(90deg,var(--neon-500),var(--plum-500),var(--hot-500));
}
.plan-card .tag-rec{
  position:absolute;top:16px;right:16px;font-size:12px;font-weight:700;
  color:#06231e;background:var(--neon-500);border-radius:999px;padding:5px 12px;
}
.plan-name{font-size:20px;margin-bottom:6px}
.plan-desc{color:var(--text-mid);font-size:14px;min-height:44px;margin-bottom:18px}
.plan-price{font-family:"Inter",system-ui,sans-serif;color:var(--amber-400);font-size:34px;letter-spacing:.5px;line-height:1}
.plan-price small{font-family:var(--font-cn);font-size:13px;color:var(--text-low);margin-left:8px;letter-spacing:0}
.plan-points{margin:22px 0 26px;display:grid;gap:12px}
.plan-points li{position:relative;padding-left:20px;font-size:15px;color:var(--text-mid)}
.plan-points li::before{
  content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;border-radius:2px;transform:rotate(45deg);
  background:rgba(46,230,197,.18);border:1px solid var(--neon-500);
}
.plan-card .btn{margin-top:auto;width:100%}
.plan-foot{margin-top:22px;font-size:13px;color:var(--text-low);text-align:center}

/* 对比表 */
.table-wrap{
  border:1px solid var(--hairline);border-radius:var(--radius-card);overflow:hidden;background:var(--ink-800);
}
.table-wrap table{min-width:720px}
.table-scroll{overflow-x:auto}
.table-wrap th,.table-wrap td{padding:16px 20px;font-size:15px;text-align:left;border-bottom:1px solid var(--hairline)}
.table-wrap thead th{
  background:var(--ink-700);color:var(--neon-500);font-size:14px;font-weight:600;letter-spacing:.04em;
}
.table-wrap tbody tr:nth-child(odd){background:rgba(255,255,255,.018)}
.table-wrap tbody tr:hover{background:rgba(46,230,197,.05)}
.table-wrap tbody td:first-child{color:var(--text-hi);font-weight:600}
.table-wrap tbody td{color:var(--text-mid)}
.table-wrap tr:last-child td{border-bottom:0}
.table-wrap .col-hi{color:var(--neon-500);font-weight:600}

/* 时间轴 */
.timeline{position:relative;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;margin-top:12px}
.timeline::before{
  content:"";position:absolute;left:8px;right:8px;top:9px;height:1px;
  background:linear-gradient(90deg,rgba(46,230,197,.6),rgba(177,75,255,.45),rgba(46,230,197,.05));
}
.tl-step{position:relative;padding-top:34px}
.tl-step .dot{
  position:absolute;top:2px;left:0;width:16px;height:16px;border-radius:999px;
  background:var(--ink-900);border:2px solid var(--neon-500);box-shadow:0 0 12px rgba(46,230,197,.5);
}
.tl-step .idx{font-family:"Inter",system-ui,sans-serif;font-size:12px;color:var(--text-low);letter-spacing:.14em}
.tl-step h3{font-size:18px;margin:6px 0 8px}
.tl-step p{margin:0;color:var(--text-mid);font-size:15px}

/* 参与步骤列表 */
.step-list{display:grid;gap:16px}
.step-row{display:flex;gap:18px;align-items:flex-start;padding:20px;background:var(--ink-800);border:1px solid var(--hairline);border-radius:var(--radius-card);transition:border-color .2s ease,transform .2s ease}
.step-row:hover{border-color:var(--neon-line);transform:translateX(4px)}
.step-row .n{
  flex:0 0 40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  background:rgba(46,230,197,.1);border:1px solid rgba(46,230,197,.3);color:var(--neon-500);
  font-family:"Inter",system-ui,sans-serif;font-weight:700;font-size:14px;
}
.step-row h3{font-size:17px;margin-bottom:4px}
.step-row p{margin:0;color:var(--text-mid);font-size:15px}

/* FAQ */
.faq-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:44px;align-items:start}
.faq-item{
  border-left:3px solid rgba(255,255,255,.1);
  background:var(--ink-800);border-radius:0 12px 12px 0;
  margin-bottom:14px;transition:border-color .25s ease,background-color .25s ease;
}
.faq-item.is-open{border-left-color:var(--neon-500);background:var(--ink-700)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--text-hi);
}
.faq-q:hover{color:var(--neon-500)}
.faq-q .sym{
  flex:0 0 24px;text-align:center;font-family:"Inter",system-ui,sans-serif;
  font-size:18px;line-height:1;color:var(--neon-500);
}
.faq-a{max-height:0;overflow:hidden;opacity:0;transition:max-height .3s ease,opacity .3s ease}
.faq-item.is-open .faq-a{max-height:340px;opacity:1}
.faq-a p{padding:0 22px 20px;margin:0;color:var(--text-mid);font-size:15px;line-height:1.85}

/* CTA */
.cta-band{position:relative;overflow:hidden;border-top:1px solid var(--hairline);border-bottom:1px solid var(--hairline);background:var(--ink-800)}
.cta-band::before{
  content:"";position:absolute;inset:-40% -10%;
  background:linear-gradient(115deg,transparent 30%,rgba(46,230,197,.16) 48%,rgba(177,75,255,.12) 58%,transparent 72%);
  pointer-events:none;
}
.cta-band .glowdot{position:absolute;width:8px;height:8px;border-radius:999px;background:var(--neon-500);box-shadow:0 0 18px rgba(46,230,197,.8)}
.cta-band .glowdot.p2{background:var(--hot-500);box-shadow:0 0 18px rgba(255,77,141,.7)}
.cta-inner{position:relative;z-index:2;padding:72px 0;text-align:center}
.cta-inner h2{font-size:30px;margin-bottom:14px}
.cta-inner p{color:var(--text-mid);max-width:60ch;margin:0 auto 28px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}

/* 页脚 */
.site-footer{background:var(--ink-900);border-top:1px solid var(--hairline);padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:36px;padding-bottom:48px}
.footer-col h4{font-size:14px;color:var(--neon-500);letter-spacing:.06em;margin-bottom:16px}
.footer-col p{color:var(--text-mid);font-size:14px;margin:0}
.footer-col ul{display:grid;gap:10px}
.footer-col ul a{color:var(--text-mid);font-size:14px;display:inline-block;transition:color .18s ease,transform .18s ease}
.footer-col ul a:hover{color:#fff;transform:translateX(2px)}
.footer-form{display:flex;gap:10px;margin-top:16px;flex-wrap:wrap}
.footer-form input{
  flex:1 1 160px;min-height:44px;padding:0 14px;border-radius:var(--radius-btn);
  background:var(--ink-800);border:1px solid var(--hairline);color:var(--text-hi);font-size:14px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.footer-form input::placeholder{color:var(--text-low)}
.footer-form input:focus{border-color:var(--neon-500);box-shadow:0 0 0 4px rgba(46,230,197,.14);outline:none}
.footer-bottom{
  border-top:1px solid var(--hairline);padding:22px 0 34px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{margin:0;font-size:13px;color:var(--text-low)}
.footer-bottom .quick{display:flex;gap:18px;flex-wrap:wrap}
.footer-bottom .quick a{font-size:13px;color:var(--text-mid)}
.footer-bottom .quick a:hover{color:var(--neon-500)}

/* 响应式 */
@media (max-width:1024px){
  .container{padding:0 24px}
  .section{padding:64px 0}
  .rg-nav{display:none}
  .rg-burger{display:inline-flex}
  .hero-inner h1{font-size:34px}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .rights-grid{grid-template-columns:1fr}
  .plan-grid{grid-template-columns:1fr;max-width:560px;margin:0 auto}
  .plan-card.is-featured{order:-1}
  .timeline{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
  .timeline::before{display:none}
  .faq-layout{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:768px){
  .rg-header-actions .rg-cta{display:none}
  .hero-inner{padding:56px 0 48px}
  .hero-inner h1{font-size:30px;max-width:none}
  .hero-sub{font-size:16px}
  .hero-actions .btn{width:100%}
  .section{padding:56px 0}
  .section-head h2{font-size:23px}
  .cta-inner h2{font-size:23px}
  .cta-actions .btn{width:100%}
}
@media (max-width:640px){
  .container{padding:0 16px}
  .rg-logo-full{display:none}
  .rg-logo-short{display:inline}
  .timeline{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .step-row{flex-direction:column;gap:12px}
  .table-wrap th,.table-wrap td{padding:14px 16px;font-size:14px}
}