/* roulang page: index */
:root{
  --primary:#6D3BF5;
  --primary-2:#8B5CF6;
  --primary-deep:#4B22C4;
  --secondary:#C8FF4D;
  --accent:#FF7A45;
  --bg-0:#0B0917;
  --bg-1:#120E26;
  --surface:#191338;
  --surface-2:#241B4A;
  --line:rgba(255,255,255,.08);
  --line-hover:rgba(109,59,245,.65);
  --t1:#EFECFB;
  --t2:#A9A2CE;
  --t3:#6F6892;
  --paper:#F7F6FC;
  --paper-text:#1B1733;
  --ok:#4ADE80;
  --err:#FF5A5A;
  --r-card:16px;
  --r-btn:10px;
  --r-badge:8px;
  --r-pill:999px;
  --shadow:0 12px 32px rgba(0,0,0,.45);
  --tr:200ms cubic-bezier(.4,0,.2,1);
  --font:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --num:"Space Grotesk","Segoe UI",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--t1);
  background:var(--bg-0);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;padding:0;}
ul,ol{list-style:none;}
a{color:inherit;text-decoration:none;transition:color var(--tr),border-color var(--tr),background-color var(--tr);}
img{max-width:100%;display:block;height:auto;}
button,input,select,textarea{font:inherit;color:inherit;}
button{background:none;border:none;cursor:pointer;}
:focus-visible{outline:2px solid var(--secondary);outline-offset:2px;border-radius:4px;}

.container{max-width:1240px;margin:0 auto;padding:0 24px;width:100%;}
@media (min-width:1280px){.container{padding:0 32px;}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(11,9,23,.78);
  border-bottom:1px solid transparent;
  transition:background-color var(--tr),border-color var(--tr),box-shadow var(--tr);
}
.site-header.scrolled{
  background:rgba(11,9,23,.96);
  border-bottom-color:var(--line);
  box-shadow:0 8px 24px rgba(0,0,0,.4);
}
.header-top{padding:12px 0;}
.header-top-inner{display:flex;align-items:center;gap:20px;}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:38px;height:38px;border-radius:11px;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 0 0 1px rgba(200,255,77,.25),0 6px 18px rgba(109,59,245,.4);
}
.logo-mark svg{width:20px;height:20px;}
.logo-text{display:flex;flex-direction:column;line-height:1.25;}
.logo-text strong{font-size:17px;font-weight:800;letter-spacing:.02em;color:var(--t1);}
.logo-text em{font-style:normal;font-size:11px;color:var(--t3);letter-spacing:.08em;}
.search-box{
  flex:1;max-width:380px;min-width:0;
  display:flex;align-items:center;gap:8px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  padding:0 12px;height:40px;
  transition:border-color var(--tr),box-shadow var(--tr);
}
.search-box:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(109,59,245,.22);}
.search-box svg{width:16px;height:16px;flex-shrink:0;color:var(--t3);}
.search-box input{
  flex:1;min-width:0;background:none;border:none;outline:none;
  font-size:14px;color:var(--t1);caret-color:var(--secondary);
}
.search-box input::placeholder{color:var(--t3);}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:auto;flex-shrink:0;}
.link-quiet{font-size:14px;color:var(--t2);}
.link-quiet:hover{color:var(--secondary);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--r-btn);
  border:1px solid var(--line);align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--t1);position:relative;transition:transform var(--tr),background-color var(--tr);}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--t1);transition:transform var(--tr),opacity var(--tr);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg);}

.header-nav{
  border-top:1px solid var(--line);
  background:rgba(18,14,38,.72);
  transition:background-color var(--tr),border-color var(--tr);
}
.nav-inner{display:flex;align-items:center;gap:18px;min-height:44px;}
.nav-list{display:flex;align-items:center;gap:4px;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;}
.nav-list::-webkit-scrollbar{display:none;}
.nav-list a{
  display:inline-block;padding:10px 12px;font-size:14px;color:var(--t2);
  border-bottom:2px solid transparent;white-space:nowrap;
}
.nav-list a:hover{color:var(--t1);}
.nav-list a.active{color:var(--t1);font-weight:600;border-bottom-color:var(--secondary);}
.hot-words{display:flex;align-items:center;gap:8px;margin-left:auto;overflow-x:auto;scrollbar-width:none;padding:6px 0;}
.hot-words::-webkit-scrollbar{display:none;}
.hot-words .hot-label{font-size:12px;color:var(--t3);white-space:nowrap;letter-spacing:.06em;}
.pill{
  display:inline-flex;align-items:center;padding:4px 12px;font-size:12px;
  border-radius:var(--r-pill);border:1px solid var(--line);color:var(--t2);
  background:var(--surface);white-space:nowrap;
}
.pill:hover{border-color:var(--line-hover);color:var(--secondary);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;cursor:pointer;
  transition:transform var(--tr),background-color var(--tr),color var(--tr),box-shadow var(--tr),border-color var(--tr);
}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px;}
.btn-primary{background:var(--secondary);color:#141026;box-shadow:0 8px 22px rgba(200,255,77,.18);}
.btn-primary:hover{background:#d8ff74;transform:translateY(-2px);box-shadow:0 12px 28px rgba(200,255,77,.26);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--t1);border:1px solid var(--primary);}
.btn-ghost:hover{border-color:var(--secondary);color:var(--secondary);transform:translateY(-2px);}
.btn-block{width:100%;}
.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none;}
.arrow-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--t2);}
.arrow-link:hover{color:var(--secondary);}
.arrow-link svg{width:15px;height:15px;transition:transform var(--tr);}
.arrow-link:hover svg{transform:translateX(3px);}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--bg-0);padding:76px 0 60px;}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.55;}
.hero-mask{position:absolute;inset:0;background:linear-gradient(102deg,rgba(11,9,23,.97) 0%,rgba(11,9,23,.86) 46%,rgba(11,9,23,.58) 100%);}
.hero-glow{position:absolute;inset:0;pointer-events:none;}
.hero-glow::before,.hero-glow::after{content:"";position:absolute;border-radius:50%;filter:blur(70px);opacity:.16;}
.hero-glow::before{width:520px;height:520px;background:var(--primary);top:-180px;left:-120px;}
.hero-glow::after{width:380px;height:380px;background:var(--secondary);bottom:-200px;right:6%;opacity:.1;}
.hero-inner{position:relative;z-index:2;max-width:860px;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(109,59,245,.2);border:1px solid rgba(139,92,246,.45);
  color:var(--secondary);font-size:13px;letter-spacing:.04em;margin-bottom:20px;
}
.hero-tag i{width:6px;height:6px;border-radius:50%;background:var(--secondary);display:block;}
.hero h1{
  font-size:clamp(30px,4.4vw,50px);line-height:1.2;font-weight:800;letter-spacing:-.01em;
  color:var(--t1);margin-bottom:18px;
}
.hero h1 span{
  background:linear-gradient(180deg,transparent 62%,rgba(200,255,77,.32) 62%);
  padding:0 2px;
}
.hero-sub{font-size:clamp(15px,1.6vw,18px);color:var(--t2);max-width:620px;margin-bottom:30px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:38px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px;}
.hero-stats li{
  display:flex;flex-direction:column;gap:2px;
  padding:12px 18px;border-radius:12px;
  background:rgba(25,19,56,.78);border:1px solid var(--line);
  min-width:132px;
}
.hero-stats b{font-family:var(--num);font-size:22px;font-weight:700;color:var(--secondary);letter-spacing:.01em;}
.hero-stats span{font-size:12px;color:var(--t3);}

/* ---------- sections ---------- */
.section{padding:80px 0;}
.section-alt{background:var(--bg-1);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap;}
.section-head h2{font-size:clamp(24px,3vw,36px);line-height:1.3;font-weight:700;letter-spacing:-.01em;}
.section-head p{margin-top:10px;font-size:15px;color:var(--t2);max-width:680px;}
.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.16em;color:var(--primary-2);
  text-transform:uppercase;margin-bottom:10px;font-family:var(--num);
}
.divider{height:1px;background:linear-gradient(90deg,rgba(109,59,245,.6),rgba(255,255,255,.06) 60%,transparent);}

/* ---------- channel grid ---------- */
.channel-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr;grid-template-rows:auto auto;gap:20px;}
.channel-card{
  position:relative;display:flex;flex-direction:column;justify-content:space-between;gap:18px;
  padding:26px;border-radius:var(--r-card);background:var(--surface);
  border:1px solid var(--line);overflow:hidden;
  transition:border-color var(--tr),transform var(--tr),box-shadow var(--tr),background-color var(--tr);
}
.channel-card:hover{transform:translateY(-3px);border-color:var(--line-hover);box-shadow:0 0 0 1px rgba(109,59,245,.5),0 0 24px rgba(109,59,245,.22);}
.channel-card.feature{grid-row:span 2;background:linear-gradient(160deg,var(--surface-2),var(--surface));justify-content:flex-end;min-height:290px;}
.channel-card.wide{grid-column:2 / 4;flex-direction:row;align-items:center;gap:24px;}
.channel-icon{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(109,59,245,.18);border:1px solid rgba(139,92,246,.35);color:var(--secondary);flex-shrink:0;
}
.channel-icon svg{width:22px;height:22px;}
.channel-card h3{font-size:19px;font-weight:700;margin-bottom:6px;}
.channel-card p{font-size:14px;color:var(--t2);max-width:52ch;}
.channel-card .arrow-link{margin-top:8px;}
.channel-card .tag-row{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px;}
.badge{
  display:inline-flex;align-items:center;padding:3px 10px;border-radius:var(--r-badge);
  font-size:12px;background:rgba(109,59,245,.22);color:#CFC4FF;border:1px solid rgba(139,92,246,.35);
}
.badge-accent{background:rgba(255,122,69,.16);color:#FFB894;border-color:rgba(255,122,69,.38);}

/* ---------- stats band ---------- */
.stats-band{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:56px 0;}
.stats-band-inner{display:grid;grid-template-columns:280px 1fr;gap:40px;align-items:center;}
.stats-band h2{font-size:22px;font-weight:700;line-height:1.45;}
.stats-band h2 em{font-style:normal;color:var(--secondary);}
.stats-band .lead{font-size:14px;color:var(--t3);margin-top:10px;}
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:0;}
.stats-row li{padding:0 24px;border-left:1px solid var(--line);}
.stats-row li:first-child{border-left:none;padding-left:0;}
.stats-row b{display:block;font-family:var(--num);font-size:clamp(30px,3.4vw,42px);font-weight:700;color:var(--t1);line-height:1.1;}
.stats-row b i{font-style:normal;font-size:18px;color:var(--secondary);margin-left:2px;}
.stats-row span{display:block;font-size:13px;color:var(--t3);margin-top:8px;}

/* ---------- feature cards ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start;}
.feature-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform var(--tr),border-color var(--tr),box-shadow var(--tr);
}
.feature-card:hover{transform:translateY(-3px);border-color:var(--line-hover);box-shadow:0 0 0 1px rgba(109,59,245,.5),0 0 24px rgba(109,59,245,.2);}
.feature-card.raised{margin-top:-24px;}
.feature-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--surface-2);}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--tr);}
.feature-card:hover .feature-media img{transform:scale(1.03);}
.feature-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(11,9,23,.72));}
.feature-body{padding:20px;display:flex;flex-direction:column;gap:12px;flex:1;}
.feature-body h3{font-size:18px;font-weight:700;line-height:1.5;}
.feature-body h3 a:hover{color:var(--secondary);}
.feature-meta{display:flex;align-items:center;gap:12px;margin-top:auto;font-size:12px;color:var(--t3);}
.feature-meta time{font-family:var(--num);}

/* ---------- plans ---------- */
.plan-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:24px;align-items:stretch;}
.plan-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:32px;display:flex;flex-direction:column;gap:20px;
  transition:border-color var(--tr),box-shadow var(--tr),transform var(--tr);
}
.plan-card:hover{transform:translateY(-3px);border-color:var(--line-hover);}
.plan-card.highlight{background:linear-gradient(155deg,var(--surface-2),var(--surface));border-color:rgba(139,92,246,.5);}
.plan-card h3{font-size:22px;font-weight:700;}
.plan-card .plan-note{font-size:14px;color:var(--t2);}
.check-list{display:flex;flex-direction:column;gap:12px;}
.check-list li{position:relative;padding-left:20px;font-size:15px;color:var(--t2);line-height:1.7;}
.check-list li::before{
  content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;
  background:var(--secondary);border-radius:2px;
}
.check-list li strong{color:var(--t1);font-weight:600;}
.plan-card .btn{margin-top:auto;align-self:flex-start;}

/* ---------- cms list ---------- */
.tab-bar{display:flex;gap:10px;overflow-x:auto;scrollbar-width:none;padding-bottom:4px;margin-bottom:28px;}
.tab-bar::-webkit-scrollbar{display:none;}
.tab-bar button{
  padding:8px 18px;border-radius:var(--r-pill);border:1px solid var(--line);
  background:var(--surface);color:var(--t2);font-size:14px;white-space:nowrap;
  transition:border-color var(--tr),color var(--tr),background-color var(--tr);
}
.tab-bar button:hover{border-color:var(--line-hover);color:var(--t1);}
.tab-bar button.active{background:var(--secondary);border-color:var(--secondary);color:#141026;font-weight:600;}

.post-list{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.post-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  transition:transform var(--tr),border-color var(--tr),box-shadow var(--tr);
}
.post-card:hover{transform:translateY(-3px);border-color:var(--line-hover);box-shadow:0 0 0 1px rgba(109,59,245,.5),0 0 24px rgba(109,59,245,.2);}
.post-card:first-child{grid-column:1 / -1;background:linear-gradient(120deg,var(--surface-2),var(--surface));}
.post-link{display:flex;flex-direction:column;gap:12px;padding:22px;height:100%;}
.post-card:first-child .post-link{padding:30px 32px;gap:14px;}
.post-title{font-size:17px;font-weight:700;line-height:1.55;color:var(--t1);}
.post-card:first-child .post-title{font-size:clamp(20px,2.4vw,26px);}
.post-link:hover .post-title{color:var(--secondary);}
.post-excerpt{
  font-size:14px;color:var(--t2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card:first-child .post-excerpt{-webkit-line-clamp:3;font-size:15px;max-width:80ch;}
.post-meta{display:flex;align-items:center;gap:12px;margin-top:auto;padding-top:4px;flex-wrap:wrap;}
.post-meta time{font-family:var(--num);font-size:12px;color:var(--t3);}
.empty-state{
  grid-column:1 / -1;border:1px dashed rgba(255,255,255,.14);border-radius:var(--r-card);
  padding:52px 24px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:14px;
  color:var(--t2);background:rgba(25,19,56,.45);
}
.empty-state strong{font-size:17px;color:var(--t1);font-weight:600;}

/* ---------- faq ---------- */
.faq-layout{display:grid;grid-template-columns:340px 1fr;gap:40px;align-items:start;}
.faq-aside h2{font-size:clamp(24px,3vw,32px);line-height:1.35;font-weight:700;margin-bottom:14px;}
.faq-aside p{font-size:15px;color:var(--t2);margin-bottom:22px;}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;transition:border-color var(--tr);}
.faq-item.open{border-color:rgba(139,92,246,.5);}
.faq-question{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--t1);
  min-height:44px;position:relative;
}
.faq-question::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
  background:var(--secondary);opacity:0;transition:opacity var(--tr);
}
.faq-item.open .faq-question::before{opacity:1;}
.faq-sign{position:relative;width:16px;height:16px;flex-shrink:0;transition:transform var(--tr);}
.faq-sign::before,.faq-sign::after{content:"";position:absolute;background:var(--secondary);border-radius:1px;}
.faq-sign::before{left:0;top:7px;width:16px;height:2px;}
.faq-sign::after{left:7px;top:0;width:2px;height:16px;transition:opacity var(--tr);}
.faq-item.open .faq-sign{transform:rotate(180deg);}
.faq-item.open .faq-sign::after{opacity:0;}
.faq-answer{max-height:0;overflow:hidden;transition:max-height 260ms cubic-bezier(.4,0,.2,1);}
.faq-answer p{padding:0 22px 22px;font-size:15px;color:var(--t2);}

/* ---------- contact ---------- */
.contact-panel{
  display:grid;grid-template-columns:1fr 1.05fr;gap:40px;align-items:start;
  background:linear-gradient(140deg,var(--surface-2),var(--surface));
  border:1px solid rgba(139,92,246,.3);border-radius:20px;padding:44px;
}
.contact-copy h2{font-size:clamp(24px,3vw,34px);line-height:1.35;font-weight:700;margin-bottom:16px;}
.contact-copy p{font-size:15px;color:var(--t2);margin-bottom:24px;max-width:46ch;}
.contact-points{display:flex;flex-direction:column;gap:14px;}
.contact-points li{display:flex;gap:12px;align-items:flex-start;font-size:14px;color:var(--t2);}
.contact-points svg{width:18px;height:18px;color:var(--secondary);flex-shrink:0;margin-top:4px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:13px;color:var(--t2);}
.field input,.field select,.field textarea{
  background:rgba(11,9,23,.6);border:1px solid var(--line);border-radius:var(--r-btn);
  padding:12px 14px;font-size:14px;color:var(--t1);outline:none;width:100%;
  transition:border-color var(--tr),box-shadow var(--tr);
  caret-color:var(--secondary);min-height:44px;
}
.field textarea{min-height:110px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:var(--t3);}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(109,59,245,.2);}
.field.error input,.field.error textarea,.field.error select{border-color:var(--err);}
.field .err-msg{font-size:12px;color:var(--err);display:none;}
.field.error .err-msg{display:block;}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--t2);line-height:1.7;}
.check-row input{width:16px;height:16px;margin-top:5px;accent-color:var(--primary);flex-shrink:0;}
.check-row a{color:var(--secondary);}
.form-tip{font-size:13px;border-radius:var(--r-btn);padding:10px 14px;display:none;}
.form-tip.ok{display:block;background:rgba(74,222,128,.12);color:var(--ok);border:1px solid rgba(74,222,128,.35);}

/* ---------- footer ---------- */
.site-footer{background:#0A0814;border-top:1px solid var(--line);padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px;padding-bottom:48px;}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--t3);max-width:34ch;}
.qr-box{
  margin-top:20px;width:104px;height:104px;border-radius:12px;
  border:1px dashed rgba(255,255,255,.16);background:rgba(25,19,56,.6);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:11px;color:var(--t3);line-height:1.6;padding:8px;
}
.footer-col h4{font-size:15px;font-weight:700;color:var(--t1);margin-bottom:18px;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:14px;color:var(--t3);}
.footer-col a:hover{color:var(--secondary);}
.footer-contact li{font-size:14px;color:var(--t3);display:flex;gap:10px;line-height:1.7;}
.footer-contact b{font-family:var(--num);color:var(--t2);font-weight:600;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.06);
  padding:22px 0 28px;display:flex;flex-wrap:wrap;gap:14px 26px;align-items:center;justify-content:space-between;
}
.footer-bottom p{font-size:13px;color:var(--t3);}
.footer-links{display:flex;flex-wrap:wrap;gap:18px;}
.footer-links a{font-size:13px;color:var(--t3);}
.footer-links a:hover{color:var(--secondary);}

/* ---------- back to top ---------- */
.to-top{
  position:fixed;right:24px;bottom:28px;width:46px;height:46px;border-radius:12px;
  background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;
  box-shadow:0 10px 26px rgba(109,59,245,.42);
  opacity:0;visibility:hidden;transform:translateY(12px);z-index:80;
  transition:opacity var(--tr),transform var(--tr),visibility var(--tr),background-color var(--tr);
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--primary-2);}
.to-top svg{width:18px;height:18px;}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .section{padding:64px 0;}
  .channel-grid{grid-template-columns:1fr 1fr;}
  .channel-card.feature{grid-row:span 1;grid-column:1 / -1;min-height:220px;}
  .channel-card.wide{grid-column:1 / -1;flex-direction:column;align-items:flex-start;gap:14px;}
  .stats-band-inner{grid-template-columns:1fr;gap:28px;}
  .stats-row li{padding:0 18px;}
  .feature-grid{grid-template-columns:1fr 1fr;}
  .feature-card.raised{margin-top:0;}
  .plan-grid{grid-template-columns:1fr;}
  .faq-layout{grid-template-columns:1fr;gap:28px;}
  .contact-panel{grid-template-columns:1fr;padding:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:768px){
  body{font-size:15px;}
  .search-box,.link-quiet{display:none;}
  .nav-toggle{display:flex;}
  .header-nav{
    position:fixed;top:0;left:0;right:0;bottom:0;z-index:95;
    background:var(--bg-0);border-top:none;padding:82px 24px 32px;
    transform:translateY(-100%);visibility:hidden;
    transition:transform 260ms cubic-bezier(.4,0,.2,1),visibility 260ms;
    overflow-y:auto;
  }
  .header-nav.open{transform:translateY(0);visibility:visible;}
  .nav-inner{flex-direction:column;align-items:stretch;gap:0;min-height:0;}
  .nav-list{flex-direction:column;align-items:stretch;gap:0;overflow:visible;}
  .nav-list a{
    padding:16px 4px;font-size:17px;border-bottom:1px solid var(--line);
    border-left:2px solid transparent;border-bottom-width:1px;
  }
  .nav-list a.active{border-bottom-color:var(--line);border-left-color:var(--secondary);padding-left:12px;}
  .hot-words{margin:24px 0 0;flex-wrap:wrap;overflow:visible;}
  .hot-words .hot-label{width:100%;margin-bottom:10px;}
  .hero{padding:48px 0 44px;}
  .hero-cta{gap:12px;}
  .hero-cta .btn{flex:1 1 100%;}
  .hero-stats{gap:10px;}
  .hero-stats li{flex:1 1 45%;min-width:0;padding:10px 14px;}
  .section{padding:52px 0;}
  .section-head{margin-bottom:26px;}
  .channel-grid{grid-template-columns:1fr;}
  .feature-grid{grid-template-columns:1fr;}
  .feature-card.raised{margin-top:0;}
  .post-list{grid-template-columns:1fr;}
  .post-card:first-child .post-link{padding:22px;}
  .stats-row{grid-template-columns:1fr 1fr;gap:24px 0;}
  .stats-row li{padding:0 16px;}
  .stats-row li:nth-child(odd){border-left:none;padding-left:0;}
  .contact-panel{padding:24px;}
  .form-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .to-top{right:16px;bottom:18px;}
}
@media (max-width:520px){
  .container{padding:0 18px;}
  .hero h1{font-size:28px;}
  .plan-card{padding:24px;}
  .faq-question{padding:16px 18px;font-size:15px;}
  .faq-answer p{padding:0 18px 18px;}
  .btn{width:auto;}
  .hero-cta .btn{width:100%;}
  .post-link{padding:18px;}
}

/* roulang page: article */
:root{
  --primary:#6D3BF5;
  --primary-2:#8B5CF6;
  --primary-deep:#4B22C4;
  --secondary:#C8FF4D;
  --accent:#FF7A45;
  --bg-0:#0B0917;
  --bg-1:#120E26;
  --surface:#191338;
  --surface-2:#241B4A;
  --line:rgba(255,255,255,.08);
  --t1:#EFECFB;
  --t2:#A9A2CE;
  --t3:#6F6892;
  --paper:#F7F6FC;
  --paper-text:#1B1733;
  --ok:#4ADE80;
  --err:#FF5A5A;
  --r-card:16px;
  --r-btn:10px;
  --r-badge:8px;
  --shadow:0 12px 32px rgba(0,0,0,.45);
  --glow:0 0 0 1px rgba(109,59,245,.6),0 0 24px rgba(109,59,245,.22);
  --ease:200ms cubic-bezier(.4,0,.2,1);
  --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-num:"Space Grotesk",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--t1);
  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;height:auto}
a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease),background var(--ease)}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--secondary);outline-offset:2px}
.container{max-width:1240px;margin:0 auto;padding:0 24px;width:100%}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ============ 按钮 / 徽章 / 胶囊 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;line-height:1;border:1px solid transparent;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
}
.btn-primary{background:var(--secondary);color:#0B0917}
.btn-primary:hover{background:#d8ff74;transform:translateY(-2px);box-shadow:0 10px 26px rgba(200,255,77,.22)}
.btn-primary:active{transform:translateY(0);background:#bcfa2f}
.btn-outline{background:transparent;border-color:rgba(109,59,245,.75);color:var(--t1)}
.btn-outline:hover{border-color:var(--secondary);color:var(--secondary);transform:translateY(-2px)}
.btn-outline:active{transform:translateY(0);background:rgba(109,59,245,.14)}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--secondary)}
.link-arrow::after{content:"→";transition:transform var(--ease)}
.link-arrow:hover::after{transform:translateX(4px)}
.link-quiet{font-size:14px;color:var(--t2)}
.link-quiet:hover{color:var(--secondary)}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:var(--r-badge);
  font-size:12.5px;font-weight:700;letter-spacing:.02em;
  background:rgba(109,59,245,.18);color:#CDBBFF;border:1px solid rgba(109,59,245,.35);
}
.badge-time{background:rgba(255,122,69,.14);color:#FFB694;border-color:rgba(255,122,69,.32)}
.pill{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  font-size:13px;color:var(--t2);background:var(--surface);border:1px solid var(--line);
  white-space:nowrap;transition:all var(--ease);
}
.pill:hover{color:var(--secondary);border-color:rgba(200,255,77,.5);background:var(--surface-2)}
.tag-list{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:999px;
  font-size:13.5px;color:var(--t2);background:var(--surface);border:1px solid var(--line);
}
.tag:hover{color:var(--secondary);border-color:rgba(200,255,77,.5)}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(11,9,23,.94);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:border-color var(--ease),background var(--ease),box-shadow var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 10px 30px rgba(0,0,0,.4)}
.header-top-inner{display:flex;align-items:center;gap:22px;min-height:66px}
.logo{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.logo-mark{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--primary),var(--primary-deep));
  box-shadow:0 6px 18px rgba(109,59,245,.35);
}
.logo-mark svg{width:22px;height:22px}
.logo-text strong{display:block;font-size:17px;font-weight:800;letter-spacing:.02em;line-height:1.2}
.logo-text em{display:block;font-style:normal;font-size:10.5px;color:var(--t3);letter-spacing:.22em;line-height:1.5}
.search-box{
  flex:1 1 auto;max-width:380px;display:flex;align-items:center;gap:9px;
  height:40px;padding:0 14px;border-radius:var(--r-btn);
  background:var(--surface);border:1px solid var(--line);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.search-box svg{width:17px;height:17px;color:var(--t3);flex:0 0 auto}
.search-box input{
  flex:1;min-width:0;height:100%;border:0;background:transparent;outline:none;
  font-size:14px;caret-color:var(--secondary);
}
.search-box input::placeholder{color:var(--t3)}
.search-box:focus-within{border-color:rgba(109,59,245,.85);box-shadow:0 0 0 3px rgba(109,59,245,.16)}
.header-actions{display:flex;align-items:center;gap:16px;margin-left:auto;flex:0 0 auto}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  background:var(--surface);border:1px solid var(--line);position:relative;
}
.nav-toggle span,.nav-toggle::before,.nav-toggle::after{
  content:"";position:absolute;left:11px;right:11px;height:2px;border-radius:2px;background:var(--t1);
  transition:transform var(--ease),opacity var(--ease);
}
.nav-toggle::before{top:14px}
.nav-toggle span{top:20px}
.nav-toggle::after{top:26px}
body.nav-open .nav-toggle::before{transform:translateY(6px) rotate(45deg)}
body.nav-open .nav-toggle span{opacity:0}
body.nav-open .nav-toggle::after{transform:translateY(-6px) rotate(-45deg)}
.header-nav{
  border-top:1px solid var(--line);
  transition:height var(--ease);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:46px}
.nav-list{display:flex;align-items:center;gap:28px;height:100%}
.nav-list a{
  position:relative;display:flex;align-items:center;height:100%;
  font-size:14.5px;color:var(--t2);font-weight:600;
}
.nav-list a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--secondary);transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
}
.nav-list a:hover{color:var(--t1)}
.nav-list a:hover::after,.nav-list a.active::after{transform:scaleX(1)}
.nav-list a.active{color:var(--t1)}
.hot-words{display:flex;align-items:center;gap:8px;overflow-x:auto;scrollbar-width:none;padding:6px 0}
.hot-words::-webkit-scrollbar{display:none}
.hot-label{font-size:12px;color:var(--t3);letter-spacing:.12em;flex:0 0 auto}

/* ============ 文章页头 ============ */
.article-hero{
  position:relative;padding:34px 0 44px;
  background-image:linear-gradient(180deg,rgba(11,9,23,.86),rgba(11,9,23,.96)),url(/assets/images/backpic/back-1.webp);
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.article-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(520px 260px at 12% 10%,rgba(109,59,245,.20),transparent 70%),
    radial-gradient(420px 220px at 88% 80%,rgba(200,255,77,.10),transparent 70%);
}
.article-hero .container{position:relative}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--t3);margin-bottom:20px}
.breadcrumb a:hover{color:var(--secondary)}
.breadcrumb .sep{color:var(--t3);opacity:.7}
.breadcrumb .current{
  color:var(--t2);max-width:280px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.article-title{
  font-size:clamp(27px,3.7vw,44px);line-height:1.24;font-weight:800;letter-spacing:-.01em;
  max-width:920px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:20px;font-size:13.5px;color:var(--t2)}
.article-meta .num{font-family:var(--font-num);color:var(--t3)}
.meta-divider{width:1px;height:14px;background:var(--line)}
.hero-cover{
  margin-top:28px;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow);
}
.hero-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}

/* ============ 文章布局 ============ */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 340px;
  gap:36px;align-items:start;padding-top:48px;padding-bottom:72px;
}
.paper{
  background:var(--paper);color:var(--paper-text);
  border-radius:18px;padding:40px;
  box-shadow:0 18px 44px rgba(0,0,0,.32);
}
.article-content{font-size:17px;line-height:1.9}
.article-content h2{
  font-size:22px;line-height:1.45;font-weight:800;color:#150F33;
  margin:1.9em 0 .9em;padding-left:14px;border-left:4px solid var(--primary);
}
.article-content h2:first-child{margin-top:0}
.article-content h3{font-size:18px;font-weight:800;margin:1.6em 0 .6em;color:#150F33}
.article-content p{margin:0 0 1.2em;color:#2A2450}
.article-content ul{margin:0 0 1.3em;padding:0}
.article-content ul li{position:relative;padding-left:22px;margin-bottom:10px;color:#2A2450}
.article-content ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:8px;height:8px;
  border-radius:2px;background:var(--secondary);box-shadow:0 0 0 1px rgba(109,59,245,.25);
}
.article-content ol{margin:0 0 1.3em;padding-left:0;counter-reset:num}
.article-content ol li{position:relative;padding-left:30px;margin-bottom:10px;counter-increment:num;color:#2A2450}
.article-content ol li::before{
  content:counter(num);position:absolute;left:0;top:.18em;
  width:21px;height:21px;border-radius:6px;display:grid;place-items:center;
  font-family:var(--font-num);font-size:12.5px;font-weight:700;
  background:rgba(109,59,245,.13);color:var(--primary-deep);
}
.article-content blockquote{
  margin:1.5em 0;padding:16px 22px;border-left:4px solid var(--primary);
  background:rgba(109,59,245,.07);border-radius:0 12px 12px 0;color:#312A5C;
}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content img{border-radius:12px;margin:1.6em auto;max-width:100%;height:auto}
.article-content a{color:var(--primary-deep);text-decoration:underline;text-underline-offset:3px}
.article-content a:hover{color:var(--primary)}
.article-content table{
  width:100%;border-collapse:collapse;margin:1.5em 0;font-size:15px;
  border:1px solid rgba(27,23,51,.12);border-radius:12px;overflow:hidden;
}
.article-content thead th{
  background:#2B1D64;color:#EDE9FF;font-weight:700;text-align:left;
}
.article-content th,.article-content td{padding:11px 14px;border-bottom:1px solid rgba(27,23,51,.09)}
.article-content tbody tr:nth-child(even){background:rgba(109,59,245,.05)}
.article-content pre{
  background:#16112E;color:#DCD6FF;border-radius:12px;padding:18px;
  overflow-x:auto;font-size:14px;line-height:1.7;margin:1.4em 0;
}
.article-content code{font-family:var(--font-num);font-size:.94em}
.article-content :not(pre) > code{
  background:rgba(109,59,245,.12);color:#3B2A86;padding:2px 7px;border-radius:6px;
}
.article-note{
  margin-top:28px;padding-top:18px;border-top:1px dashed rgba(27,23,51,.16);
  font-size:13.5px;color:#6A6390;
}
.empty-state{
  border:1px dashed rgba(27,23,51,.24);border-radius:14px;
  padding:48px 24px;text-align:center;color:#5A5382;
}
.empty-state strong{display:block;font-size:18px;color:#1B1733;margin-bottom:10px}
.empty-state .btn{margin-top:20px}

/* 标签 / 上下篇 / 相关 */
.article-tags{margin-top:26px}
.article-tags .tag{background:var(--surface);border-color:var(--line);color:var(--t2)}
.article-tags .tag:hover{color:var(--secondary);border-color:rgba(200,255,77,.5)}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:30px}
.pager a{
  display:block;padding:18px 20px;border-radius:var(--r-card);
  background:var(--surface);border:1px solid var(--line);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.pager a:hover{transform:translateY(-3px);border-color:rgba(109,59,245,.65);box-shadow:var(--glow)}
.pager span{display:block;font-size:12.5px;color:var(--t3);margin-bottom:6px;letter-spacing:.06em}
.pager strong{display:block;font-size:15px;font-weight:700;line-height:1.55;color:var(--t1)}
.pager .next{text-align:right}
.related{margin-top:52px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:24px}
.section-head h2{font-size:clamp(20px,2.4vw,26px);font-weight:800;letter-spacing:-.01em}
.section-head p{font-size:13.5px;color:var(--t3);margin-top:6px}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.card{
  display:flex;flex-direction:column;overflow:hidden;border-radius:var(--r-card);
  background:var(--surface);border:1px solid var(--line);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.card:hover{transform:translateY(-3px);border-color:rgba(109,59,245,.6);box-shadow:var(--glow)}
.card .thumb{position:relative;overflow:hidden}
.card .thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s var(--ease)}
.card:hover .thumb img{transform:scale(1.03)}
.card .thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(11,9,23,.7))}
.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:16.5px;font-weight:700;line-height:1.5}
.card-body h3 a:hover{color:var(--secondary)}
.card-sum{
  font-size:13.5px;color:var(--t2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{display:flex;align-items:center;gap:10px;margin-top:auto;font-size:12.5px;color:var(--t3)}
.card-meta .num{font-family:var(--font-num)}
.card-link{position:absolute;inset:0;z-index:2}
.card{position:relative}

/* 侧栏 */
.article-side{position:sticky;top:120px;display:flex;flex-direction:column;gap:22px}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px;
}
.side-card h3{font-size:15px;font-weight:800;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--secondary)}
.side-search{display:flex;align-items:center;gap:8px;height:42px;padding:0 12px;border-radius:var(--r-btn);background:var(--bg-1);border:1px solid var(--line)}
.side-search input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:14px;caret-color:var(--secondary)}
.side-search input::placeholder{color:var(--t3)}
.side-search:focus-within{border-color:rgba(109,59,245,.85);box-shadow:0 0 0 3px rgba(109,59,245,.16)}
.rank-list li{display:flex;gap:11px;padding:11px 0;border-bottom:1px solid var(--line)}
.rank-list li:last-child{border-bottom:0;padding-bottom:0}
.rank-list li:first-child{padding-top:0}
.rank-no{
  flex:0 0 auto;width:22px;height:22px;border-radius:6px;display:grid;place-items:center;
  font-family:var(--font-num);font-size:12.5px;font-weight:700;
  background:var(--surface-2);color:var(--t2);margin-top:2px;
}
.rank-list li:nth-child(-n+3) .rank-no{background:rgba(200,255,77,.16);color:var(--secondary)}
.rank-list a{font-size:14px;line-height:1.6;color:var(--t2)}
.rank-list a:hover{color:var(--t1)}
.side-cats li + li{margin-top:8px}
.side-cats a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 14px;border-radius:10px;font-size:14px;color:var(--t2);
  background:var(--bg-1);border:1px solid var(--line);
}
.side-cats a:hover{color:var(--secondary);border-color:rgba(200,255,77,.45)}
.side-cats a::after{content:"›";font-size:16px;color:var(--t3)}

/* FAQ */
.faq-section{padding:72px 0;background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.faq-grid{display:grid;grid-template-columns:320px minmax(0,1fr);gap:44px;align-items:start}
.faq-intro h2{font-size:clamp(22px,2.8vw,30px);font-weight:800;line-height:1.35}
.faq-intro p{margin-top:14px;font-size:14.5px;color:var(--t2);line-height:1.85}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;transition:border-color var(--ease);
}
.faq-item[open]{border-color:rgba(109,59,245,.6)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:17px 20px;font-size:15.5px;font-weight:700;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";font-family:var(--font-num);font-size:20px;color:var(--secondary);
  flex:0 0 auto;transition:transform var(--ease);
}
.faq-item[open] summary::after{content:"−";transform:rotate(180deg)}
.faq-item .faq-body{
  padding:0 20px 18px;font-size:14.5px;color:var(--t2);line-height:1.85;
  border-left:3px solid var(--secondary);margin-left:0;
}
.faq-item[open] .faq-body{padding-left:20px}

/* CTA */
.cta-section{padding:72px 0}
.cta-box{
  position:relative;overflow:hidden;border-radius:20px;
  padding:46px 44px;display:flex;align-items:center;justify-content:space-between;gap:36px;
  background-image:linear-gradient(100deg,rgba(75,34,196,.92),rgba(11,9,23,.9)),url(/assets/images/backpic/back-2.png);
  background-size:cover;background-position:center;
  border:1px solid rgba(109,59,245,.45);
}
.cta-box h2{font-size:clamp(21px,2.6vw,28px);font-weight:800;line-height:1.35}
.cta-box p{margin-top:10px;font-size:14.5px;color:#D8D3F5;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;flex:0 0 auto}

/*  footer  */
.site-footer{background:#0A0814;border-top:1px solid var(--line);padding-top:56px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px}
.footer-brand p{margin-top:16px;font-size:13.5px;color:var(--t3);line-height:1.8;max-width:280px}
.qr-box{
  margin-top:18px;width:118px;height:118px;border-radius:12px;
  display:grid;place-items:center;text-align:center;
  font-size:12.5px;color:var(--t3);line-height:1.7;
  background:var(--surface);border:1px dashed rgba(255,255,255,.16);
}
.footer-col h4{font-size:14.5px;font-weight:800;margin-bottom:16px;letter-spacing:.02em}
.footer-col ul li{margin-bottom:11px}
.footer-col ul a{font-size:13.5px;color:var(--t3)}
.footer-col ul a:hover{color:var(--secondary)}
.footer-contact li{font-size:13.5px;color:var(--t3)}
.footer-contact b{font-family:var(--font-num);color:var(--t2);font-weight:600}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
}
.footer-bottom p{font-size:13px;color:var(--t3)}
.footer-links{display:flex;flex-wrap:wrap;gap:18px}
.footer-links a{font-size:13px;color:var(--t3)}
.footer-links a:hover{color:var(--secondary)}

/* 返回顶部 */
#toTop{
  position:fixed;right:22px;bottom:26px;z-index:70;
  width:46px;height:46px;border-radius:12px;display:grid;place-items:center;
  background:var(--primary);color:#fff;border:1px solid rgba(255,255,255,.14);
  box-shadow:0 12px 28px rgba(75,34,196,.5);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity var(--ease),transform var(--ease),visibility var(--ease),background var(--ease);
}
#toTop.show{opacity:1;visibility:visible;transform:translateY(0)}
#toTop:hover{background:var(--primary-2)}

/* ============ 响应式 ============ */
@media (max-width:1240px){
  .article-layout{grid-template-columns:minmax(0,1fr) 310px;gap:28px}
}
@media (max-width:1024px){
  .search-box{max-width:260px}
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .article-side{position:static;top:auto;order:2;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
  .article-side .side-card:first-child{grid-column:1/-1}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .faq-grid{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px}
}
@media (max-width:900px){
  .header-nav{
    position:fixed;top:0;right:0;width:min(330px,86vw);height:100vh;
    background:#0D0A1D;border-left:1px solid var(--line);border-top:0;
    transform:translateX(102%);transition:transform .28s var(--ease);
    padding:80px 22px 30px;overflow-y:auto;z-index:85;
  }
  body.nav-open .header-nav{transform:translateX(0)}
  .nav-inner{display:block;height:auto}
  .nav-list{
    flex-direction:column;align-items:stretch;gap:0;height:auto;
  }
  .nav-list li{border-bottom:1px solid var(--line)}
  .nav-list a{height:52px;font-size:15.5px}
  .nav-list a::after{bottom:0;top:auto}
  .hot-words{margin-top:20px;padding-bottom:6px}
  .nav-toggle{display:block}
  .search-box{display:none}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .header-top-inner{min-height:60px;gap:14px}
  .header-actions .link-quiet{display:none}
  .article-hero{padding:24px 0 34px}
  .article-layout{padding-top:32px;padding-bottom:52px;gap:26px}
  .paper{padding:24px 20px;border-radius:14px}
  .article-content{font-size:16px}
  .article-content h2{font-size:19.5px}
  .pager{grid-template-columns:1fr}
  .pager .next{text-align:left}
  .card-grid{grid-template-columns:1fr;gap:18px}
  .article-side{grid-template-columns:1fr}
  .faq-section{padding:52px 0}
  .cta-section{padding:48px 0}
  .cta-box{flex-direction:column;align-items:flex-start;padding:32px 24px;gap:24px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  #toTop{right:16px;bottom:18px}
}
@media (max-width:520px){
  .article-title{font-size:25px}
  .article-meta{gap:9px;font-size:12.5px}
  .hero-cover{margin-top:20px}
  .meta-divider{display:none}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1;min-width:130px}
}

/* roulang page: category1 */
:root{
  --primary:#6D3BF5;
  --primary-2:#8B5CF6;
  --primary-deep:#4B22C4;
  --secondary:#C8FF4D;
  --accent:#FF7A45;
  --bg-0:#0B0917;
  --bg-1:#120E26;
  --surface:#191338;
  --surface-2:#241B4A;
  --line:rgba(255,255,255,.08);
  --line-hover:rgba(109,59,245,.65);
  --t1:#EFECFB;
  --t2:#A9A2CE;
  --t3:#6F6892;
  --paper:#F7F6FC;
  --paper-text:#1B1733;
  --success:#4ADE80;
  --error:#FF5A5A;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-badge:8px;
  --radius-pill:999px;
  --shadow:0 12px 32px rgba(0,0,0,.45);
  --shadow-hover:0 0 0 1px rgba(109,59,245,.6),0 0 24px rgba(109,59,245,.22);
  --ease:200ms cubic-bezier(.4,0,.2,1);
  --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-num:"Space Grotesk",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--t1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease),background-color var(--ease);}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3,h4{line-height:1.3;letter-spacing:-.01em;}
:focus-visible{outline:2px solid var(--secondary);outline-offset:2px;border-radius:4px;}

.container{max-width:1240px;margin:0 auto;padding:0 24px;}
@media (min-width:1280px){.container{padding:0 32px;}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;
  border:1px solid transparent;border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;cursor:pointer;
  transition:transform var(--ease),background-color var(--ease),border-color var(--ease),color var(--ease),box-shadow var(--ease);
  white-space:nowrap;
}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px;}
.btn-primary{background:var(--secondary);color:#141024;}
.btn-primary:hover{background:#d8ff6e;transform:translateY(-2px);box-shadow:0 8px 22px rgba(200,255,77,.22);}
.btn-primary:active{transform:translateY(0);background:#b7ec3f;}
.btn-ghost{background:transparent;border-color:rgba(109,59,245,.75);color:var(--t1);}
.btn-ghost:hover{background:rgba(109,59,245,.16);border-color:var(--primary-2);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-block{width:100%;}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--secondary);font-weight:700;font-size:14px;}
.link-arrow svg{width:16px;height:16px;transition:transform var(--ease);}
.link-arrow:hover svg{transform:translateX(4px);}

/* ---------- 标签 / 徽章 ---------- */
.pill{
  display:inline-flex;align-items:center;
  padding:6px 14px;border-radius:var(--radius-pill);
  border:1px solid var(--line);background:rgba(255,255,255,.03);
  color:var(--t2);font-size:13px;white-space:nowrap;
  transition:color var(--ease),border-color var(--ease),background-color var(--ease);
}
.pill:hover{color:var(--t1);border-color:var(--line-hover);background:rgba(109,59,245,.14);}
.badge{
  display:inline-flex;align-items:center;
  padding:4px 10px;border-radius:var(--radius-badge);
  background:rgba(109,59,245,.24);color:#D6C6FF;
  font-size:12px;font-weight:700;letter-spacing:.02em;
}
.badge-accent{background:rgba(255,122,69,.18);color:var(--accent);}
.badge-live{background:rgba(200,255,77,.14);color:var(--secondary);}
.meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;color:var(--t3);font-size:13px;}
.meta time,.num{font-family:var(--font-num);letter-spacing:.02em;}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(11,9,23,.78);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:background-color var(--ease),box-shadow var(--ease);
}
.site-header.is-scrolled{background:rgba(11,9,23,.94);box-shadow:0 10px 30px rgba(0,0,0,.4);}
.header-top-inner{display:flex;align-items:center;gap:22px;min-height:72px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:38px;height:38px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,rgba(109,59,245,.9),rgba(75,34,196,.6));
  border:1px solid rgba(200,255,77,.28);
  box-shadow:0 6px 18px rgba(109,59,245,.35);
}
.logo-mark svg{width:22px;height:22px;}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-text strong{font-size:17px;font-weight:800;letter-spacing:.02em;}
.logo-text em{font-style:normal;font-size:11px;color:var(--t3);letter-spacing:.16em;}
.search-box{
  flex:1 1 auto;max-width:380px;
  display:flex;align-items:center;gap:10px;
  height:42px;padding:0 14px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-btn);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.search-box svg{width:17px;height:17px;color:var(--t3);flex:0 0 auto;}
.search-box input{
  flex:1 1 auto;min-width:0;background:transparent;border:0;outline:none;
  font-size:14px;color:var(--t1);caret-color:var(--secondary);
}
.search-box input::placeholder{color:var(--t3);}
.search-box:focus-within{border-color:var(--primary-2);box-shadow:0 0 0 3px rgba(109,59,245,.2);}
.header-actions{display:flex;align-items:center;gap:16px;margin-left:auto;}
.link-quiet{font-size:14px;color:var(--t2);}
.link-quiet:hover{color:var(--secondary);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--radius-btn);
  background:var(--surface);border:1px solid var(--line);cursor:pointer;
  align-items:center;justify-content:center;
}
.nav-toggle span{position:relative;width:18px;height:2px;background:var(--t1);border-radius:2px;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--t1);border-radius:2px;
  transition:transform var(--ease),top var(--ease);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{top:0;transform:rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg);}

.header-nav{border-top:1px solid var(--line);transition:height var(--ease);}
.nav-inner{display:flex;align-items:center;gap:24px;min-height:46px;}
.nav-list{display:flex;align-items:center;gap:26px;}
.nav-list a{
  display:inline-flex;align-items:center;height:46px;
  font-size:15px;color:var(--t2);border-bottom:2px solid transparent;
}
.nav-list a:hover{color:var(--t1);}
.nav-list a.active{color:var(--t1);border-bottom-color:var(--secondary);font-weight:700;}
.hot-words{display:flex;align-items:center;gap:8px;margin-left:auto;overflow-x:auto;scrollbar-width:none;}
.hot-words::-webkit-scrollbar{display:none;}
.hot-label{font-size:12px;color:var(--t3);white-space:nowrap;letter-spacing:.08em;}
.site-header.is-scrolled .nav-inner{min-height:38px;}
.site-header.is-scrolled .nav-list a{height:38px;}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:64px 0 56px;
  background:
    radial-gradient(760px 380px at 12% 8%,rgba(109,59,245,.28),transparent 68%),
    radial-gradient(620px 320px at 88% 92%,rgba(200,255,77,.12),transparent 70%),
    linear-gradient(180deg,var(--bg-1),var(--bg-0));
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:40px 40px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 78%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 78%);
}
.hero .container{position:relative;z-index:2;}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--t3);margin-bottom:20px;flex-wrap:wrap;}
.crumbs a:hover{color:var(--secondary);}
.crumbs span{color:var(--t3);}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:48px;align-items:center;}
.hero h1{
  font-size:clamp(30px,4.4vw,50px);font-weight:800;line-height:1.2;letter-spacing:-.01em;
  margin-bottom:18px;
}
.hero h1 .hl{color:var(--secondary);}
.hero-lead{font-size:17px;color:var(--t2);max-width:560px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;}
.mini-badge{
  display:flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:var(--radius-pill);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  font-size:13px;color:var(--t2);
}
.mini-badge b{font-family:var(--font-num);font-size:16px;color:var(--secondary);}
.hero-visual{position:relative;border-radius:20px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);}
.hero-visual img{width:100%;height:340px;object-fit:cover;filter:saturate(1.05);}
.hero-visual::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,9,23,.15),rgba(11,9,23,.72));}
.hero-card{
  position:absolute;left:18px;right:18px;bottom:18px;z-index:3;
  padding:16px 18px;border-radius:14px;
  background:rgba(17,13,38,.86);border:1px solid var(--line);
  backdrop-filter:blur(6px);
}
.hero-card strong{display:block;font-size:15px;margin-bottom:4px;}
.hero-card span{font-size:13px;color:var(--t3);font-family:var(--font-num);}

/* ---------- 通用板块 ---------- */
.section{padding:80px 0;}
.section-alt{background:var(--bg-1);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap;}
.section-head h2{font-size:clamp(24px,3vw,36px);font-weight:700;}
.section-head p{color:var(--t2);font-size:15px;margin-top:10px;max-width:620px;}
.section-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 12px;border-radius:var(--radius-pill);
  background:rgba(109,59,245,.18);color:#CDBBFF;font-size:12px;font-weight:700;margin-bottom:14px;
}

/* ---------- 主推卡 + 密集网格 ---------- */
.feature-card{
  display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);
  gap:0;border-radius:var(--radius-card);overflow:hidden;
  background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);
  transition:border-color var(--ease),box-shadow var(--ease),transform var(--ease);
  margin-bottom:28px;
}
.feature-card:hover{border-color:var(--line-hover);box-shadow:var(--shadow-hover);transform:translateY(-3px);}
.feature-media{position:relative;overflow:hidden;min-height:300px;}
.feature-media img{width:100%;height:100%;object-fit:cover;}
.feature-body{padding:32px;display:flex;flex-direction:column;gap:14px;}
.feature-body h3{font-size:24px;font-weight:700;}
.feature-body p{color:var(--t2);font-size:15px;}
.feature-list{display:flex;flex-direction:column;gap:8px;margin-top:2px;}
.feature-list li{position:relative;padding-left:18px;color:var(--t2);font-size:14px;}
.feature-list li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:8px;background:var(--secondary);border-radius:2px;}
.feature-body .btn{align-self:flex-start;margin-top:6px;}

.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease),background-color var(--ease);
}
.card:hover{transform:translateY(-3px);border-color:var(--line-hover);box-shadow:var(--shadow-hover);background:var(--surface-2);}
.card-cover{position:relative;aspect-ratio:16/9;overflow:hidden;}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform 400ms cubic-bezier(.4,0,.2,1);}
.card:hover .card-cover img{transform:scale(1.03);}
.card-cover .badge{position:absolute;left:12px;top:12px;}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.card-body h3{font-size:17px;font-weight:700;}
.card-body h3 a:hover{color:var(--secondary);}
.card-body p{
  color:var(--t2);font-size:14px;line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{margin-top:auto;padding-top:12px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px;}
.card-foot time{font-size:13px;color:var(--t3);font-family:var(--font-num);}

/* ---------- 数据条 ---------- */
.stats-band{
  border-radius:20px;padding:36px;
  background:linear-gradient(135deg,rgba(109,59,245,.22),rgba(11,9,23,.6));
  border:1px solid var(--line);
  display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,2fr);gap:32px;align-items:center;
}
.stats-band h2{font-size:clamp(20px,2.3vw,26px);font-weight:700;}
.stats-band .sub{color:var(--t2);font-size:14px;margin-top:10px;}
.stats-list{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.stat{padding-left:20px;border-left:1px solid var(--line);}
.stat b{display:block;font-family:var(--font-num);font-size:clamp(30px,3.4vw,42px);font-weight:700;color:var(--secondary);line-height:1.1;}
.stat span{display:block;font-size:13px;color:var(--t2);margin-top:8px;}

/* ---------- 步骤流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;}
.step{
  position:relative;padding:26px 22px;border-radius:var(--radius-card);
  background:var(--surface);border:1px solid var(--line);
  transition:border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.step:hover{border-color:var(--line-hover);transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.step-index{font-family:var(--font-num);font-size:13px;color:var(--secondary);letter-spacing:.18em;font-weight:700;}
.step h3{font-size:17px;margin:12px 0 8px;}
.step p{color:var(--t2);font-size:14px;}

/* ---------- 频道直达 ---------- */
.channel-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.channel{
  display:flex;flex-direction:column;gap:10px;
  padding:24px;border-radius:var(--radius-card);
  background:var(--surface);border:1px solid var(--line);
  transition:border-color var(--ease),transform var(--ease),background-color var(--ease);
}
.channel svg{width:26px;height:26px;color:var(--secondary);}
.channel h3{font-size:16px;font-weight:700;}
.channel p{color:var(--t2);font-size:13px;flex:1 1 auto;}
.channel .link-arrow{font-size:13px;}
.channel:hover{border-color:var(--line-hover);transform:translateY(-3px);background:var(--surface-2);}

/* ---------- 浅色阅读面板 ---------- */
.paper-panel{
  background:var(--paper);color:var(--paper-text);
  border-radius:18px;padding:40px;
  box-shadow:var(--shadow);
}
.paper-panel h2{font-size:clamp(22px,2.6vw,30px);color:#181334;margin-bottom:16px;}
.paper-panel h3{font-size:18px;color:#181334;margin:26px 0 10px;padding-left:12px;border-left:4px solid var(--primary);}
.paper-panel p{color:#3B3560;font-size:15.5px;line-height:1.9;margin-bottom:14px;}
.paper-panel ul{margin:8px 0 18px;}
.paper-panel ul li{position:relative;padding-left:20px;color:#3B3560;font-size:15px;margin-bottom:8px;}
.paper-panel ul li::before{content:"";position:absolute;left:0;top:10px;width:8px;height:8px;background:var(--primary);border-radius:2px;}
.paper-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:920px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:14px;
  overflow:hidden;transition:border-color var(--ease),background-color var(--ease);
}
.faq-item[open]{border-color:var(--line-hover);background:var(--surface-2);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:16px;font-weight:700;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(200,255,77,.14);color:var(--secondary);font-size:16px;line-height:1;
  transition:transform var(--ease);
}
.faq-item[open] .faq-icon{transform:rotate(180deg);}
.faq-answer{padding:0 22px 20px;color:var(--t2);font-size:14.5px;border-left:3px solid var(--secondary);margin-left:0;}

/* ---------- CTA + 表单 ---------- */
.cta-band{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:40px;
  padding:40px;border-radius:20px;
  background:
    radial-gradient(520px 260px at 8% 10%,rgba(109,59,245,.3),transparent 70%),
    linear-gradient(135deg,var(--surface),rgba(11,9,23,.9));
  border:1px solid var(--line);
}
.cta-band h2{font-size:clamp(22px,2.8vw,32px);margin-bottom:14px;}
.cta-band p{color:var(--t2);font-size:15px;margin-bottom:22px;}
.cta-points{display:grid;gap:10px;}
.cta-points li{position:relative;padding-left:18px;color:var(--t2);font-size:14px;}
.cta-points li::before{content:"";position:absolute;left:0;top:10px;width:8px;height:8px;background:var(--secondary);border-radius:2px;}
.form-card{background:rgba(11,9,23,.55);border:1px solid var(--line);border-radius:16px;padding:26px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;color:var(--t2);margin-bottom:8px;}
.field input,.field select,.field textarea{
  width:100%;min-height:46px;padding:11px 14px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-btn);
  outline:none;color:var(--t1);caret-color:var(--secondary);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.field textarea{min-height:104px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:var(--t3);}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--primary-2);box-shadow:0 0 0 3px rgba(109,59,245,.2);}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--error);}
.field-error{display:none;color:var(--error);font-size:12.5px;margin-top:6px;}
.field.has-error .field-error{display:block;}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--t2);}
.check-row input{width:18px;height:18px;min-height:18px;accent-color:var(--primary);margin-top:2px;}
.form-note{font-size:12.5px;color:var(--t3);margin-top:12px;}
.form-success{
  display:none;margin-top:14px;padding:12px 14px;border-radius:var(--radius-btn);
  background:rgba(74,222,128,.12);border:1px solid rgba(74,222,128,.4);
  color:var(--success);font-size:13.5px;
}
.form-success.is-show{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{background:#0A0814;border-top:1px solid var(--line);padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.4fr) repeat(3,minmax(0,1fr));gap:36px;padding-bottom:44px;}
.footer-brand p{color:var(--t2);font-size:14px;margin:16px 0 18px;max-width:320px;}
.qr-box{
  width:120px;height:120px;border-radius:14px;
  border:1px dashed rgba(255,255,255,.18);
  display:flex;align-items:center;justify-content:center;text-align:center;
  color:var(--t3);font-size:12px;line-height:1.6;
}
.footer-col h4{font-size:15px;margin-bottom:16px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{color:var(--t2);font-size:14px;}
.footer-col a:hover{color:var(--secondary);}
.footer-contact li{color:var(--t2);font-size:14px;}
.footer-contact b{color:var(--t1);font-family:var(--font-num);font-weight:500;}
.footer-bottom{
  border-top:1px solid var(--line);padding:22px 0 30px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
}
.footer-bottom p{color:var(--t3);font-size:13px;}
.footer-links{display:flex;gap:16px;flex-wrap:wrap;}
.footer-links a{color:var(--t3);font-size:13px;}
.footer-links a:hover{color:var(--secondary);}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:22px;bottom:22px;z-index:70;
  width:46px;height:46px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--primary);color:#fff;box-shadow:var(--shadow);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity var(--ease),transform var(--ease),visibility var(--ease),background-color var(--ease);
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--primary-2);}
.to-top svg{width:20px;height:20px;}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-visual img{height:280px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stats-band{grid-template-columns:1fr;gap:24px;}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .channel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .feature-card{grid-template-columns:1fr;}
  .feature-media{min-height:220px;}
  .cta-band{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .paper-grid{grid-template-columns:1fr;}
}
@media (max-width:768px){
  .section{padding:56px 0;}
  .hero{padding:44px 0 40px;}
  .search-box{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-nav{
    display:none;border-top:1px solid var(--line);
    background:rgba(11,9,23,.98);
  }
  .site-header.nav-open .header-nav{display:block;}
  .nav-inner{flex-direction:column;align-items:flex-start;gap:0;padding:10px 0 18px;min-height:0;}
  .nav-list{flex-direction:column;align-items:stretch;gap:0;width:100%;}
  .nav-list a{height:48px;font-size:16px;}
  .hot-words{margin-left:0;width:100%;padding-top:12px;border-top:1px solid var(--line);}
  .header-actions .link-quiet{display:none;}
  .card-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .channel-grid{grid-template-columns:1fr;}
  .stats-list{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
  .stat{padding-left:14px;}
  .cta-band{padding:26px;}
  .form-card{padding:20px;}
  .paper-panel{padding:24px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .container{padding:0 18px;}
  .hero h1{font-size:29px;}
  .hero-actions .btn{width:100%;}
  .section-head{margin-bottom:26px;}
  .feature-body{padding:22px;}
  .to-top{right:14px;bottom:14px;}
}

/* roulang page: category2 */
/* ===== 设计变量 ===== */
:root{
  --primary:#6D3BF5;
  --primary-2:#8B5CF6;
  --primary-deep:#4B22C4;
  --secondary:#C8FF4D;
  --accent:#FF7A45;
  --bg-0:#0B0917;
  --bg-1:#120E26;
  --surface:#191338;
  --surface-2:#241B4A;
  --line:rgba(255,255,255,.08);
  --line-hover:rgba(109,59,245,.65);
  --t1:#EFECFB;
  --t2:#A9A2CE;
  --t3:#6F6892;
  --paper:#F7F6FC;
  --paper-text:#1B1733;
  --success:#4ADE80;
  --error:#FF5A5A;
  --r-card:16px;
  --r-btn:10px;
  --r-badge:8px;
  --shadow:0 12px 32px rgba(0,0,0,.45);
  --tr:200ms cubic-bezier(.4,0,.2,1);
  --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"Space Grotesk",system-ui,-apple-system,sans-serif;
}

/* ===== 基础重置 ===== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--t1);
  background:var(--bg-0);
  overflow-x:hidden;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:inherit;text-decoration:none;transition:color var(--tr),opacity var(--tr);}
img{max-width:100%;display:block;height:auto;}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--secondary);outline-offset:2px;}
::selection{background:var(--primary);color:#fff;}

/* ===== 容器 ===== */
.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1280px){
  .container{padding:0 32px;}
}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 22px;
  border-radius:var(--r-btn);
  font-weight:700;
  font-size:15px;
  letter-spacing:.02em;
  transition:transform var(--tr),box-shadow var(--tr),background var(--tr),color var(--tr),border-color var(--tr);
  white-space:nowrap;
}
.btn-primary{
  background:var(--secondary);
  color:#141033;
  box-shadow:0 8px 22px rgba(200,255,77,.18);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(200,255,77,.3);}
.btn-primary:active{transform:translateY(0);background:#b9ee3f;}
.btn-outline{
  border:1px solid rgba(139,92,246,.6);
  color:var(--t1);
  background:rgba(109,59,245,.08);
}
.btn-outline:hover{border-color:var(--primary-2);background:rgba(109,59,245,.2);transform:translateY(-2px);}
.btn-ghost{
  border:1px solid var(--line);
  color:var(--t2);
  background:transparent;
}
.btn-ghost:hover{color:var(--t1);border-color:var(--line-hover);}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px;}
.btn[disabled],.btn:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}

.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:700;
  color:var(--secondary);
}
.link-arrow::after{content:"→";transition:transform var(--tr);}
.link-arrow:hover::after{transform:translateX(4px);}

/* ===== 徽章 / 胶囊 ===== */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 10px;
  border-radius:var(--r-badge);
  font-size:12px;
  font-weight:700;
  letter-spacing:.02em;
  background:rgba(109,59,245,.22);
  color:#CDBBFF;
  border:1px solid rgba(139,92,246,.28);
}
.badge-accent{background:rgba(255,122,69,.16);color:#FFC09B;border-color:rgba(255,122,69,.3);}
.badge-lime{background:rgba(200,255,77,.14);color:var(--secondary);border-color:rgba(200,255,77,.28);}
.pill{
  display:inline-flex;
  align-items:center;
  height:30px;
  padding:0 14px;
  border-radius:999px;
  font-size:13px;
  color:var(--t2);
  background:var(--surface);
  border:1px solid var(--line);
  transition:color var(--tr),border-color var(--tr),background var(--tr);
  white-space:nowrap;
}
.pill:hover{color:var(--t1);border-color:var(--line-hover);background:var(--surface-2);}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:linear-gradient(180deg,rgba(11,9,23,.96),rgba(11,9,23,.78));
  backdrop-filter:blur(12px);
  transition:background var(--tr),box-shadow var(--tr);
}
.site-header.is-stuck{
  background:rgba(11,9,23,.94);
  box-shadow:0 1px 0 var(--line),0 14px 30px rgba(0,0,0,.4);
}
.header-top-inner{
  display:flex;
  align-items:center;
  gap:20px;
  min-height:68px;
}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:12px;
  background:linear-gradient(145deg,rgba(109,59,245,.9),rgba(75,34,196,.85));
  box-shadow:0 0 0 1px rgba(200,255,77,.18),0 8px 20px rgba(109,59,245,.3);
}
.logo-mark svg{width:22px;height:22px;}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-text strong{font-size:17px;font-weight:800;letter-spacing:.04em;color:var(--t1);}
.logo-text em{font-style:normal;font-size:11px;color:var(--t3);letter-spacing:.16em;}

.search-box{
  position:relative;
  flex:1;
  max-width:380px;
  display:flex;
  align-items:center;
  gap:8px;
  height:42px;
  padding:0 14px;
  border-radius:var(--r-btn);
  background:var(--surface);
  border:1px solid var(--line);
  transition:border-color var(--tr),box-shadow var(--tr);
}
.search-box:focus-within{border-color:var(--primary-2);box-shadow:0 0 0 3px rgba(109,59,245,.18);}
.search-box svg{width:18px;height:18px;color:var(--t3);flex-shrink:0;}
.search-box input{
  flex:1;min-width:0;border:0;background:none;outline:none;font-size:14px;
  color:var(--t1);caret-color:var(--secondary);
}
.search-box input::placeholder{color:var(--t3);}

.header-actions{display:flex;align-items:center;gap:16px;margin-left:auto;flex-shrink:0;}
.link-quiet{font-size:14px;color:var(--t2);}
.link-quiet:hover{color:var(--secondary);}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--surface);
  position:relative;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:50%;width:18px;height:2px;border-radius:2px;background:var(--t1);
  transform:translateX(-50%);transition:transform var(--tr),opacity var(--tr);
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{content:"";top:-6px;left:0;transform:none;}
.nav-toggle span::after{content:"";top:6px;left:0;transform:none;}

.header-nav{border-top:1px solid var(--line);}
.nav-inner{display:flex;align-items:center;gap:24px;min-height:44px;transition:min-height var(--tr);}
.site-header.is-stuck .nav-inner{min-height:38px;}
.nav-list{display:flex;align-items:center;gap:26px;}
.nav-list a{
  position:relative;
  display:inline-block;
  padding:9px 0;
  font-size:15px;
  color:var(--t2);
  font-weight:500;
}
.nav-list a:hover{color:var(--t1);}
.nav-list a.active{color:var(--t1);font-weight:700;}
.nav-list a.active::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--secondary);
}
.hot-words{
  display:flex;align-items:center;gap:10px;
  margin-left:auto;
  overflow-x:auto;
  scrollbar-width:none;
}
.hot-words::-webkit-scrollbar{display:none;}
.hot-label{font-size:12px;color:var(--t3);letter-spacing:.08em;flex-shrink:0;}

/* ===== 页头 Hero ===== */
.page-hero{
  position:relative;
  padding:72px 0 64px;
  overflow:hidden;
  background:var(--bg-0);
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  opacity:.34;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(600px 320px at 12% 20%,rgba(109,59,245,.34),transparent 70%),
    radial-gradient(520px 300px at 88% 78%,rgba(200,255,77,.16),transparent 72%),
    linear-gradient(180deg,rgba(11,9,23,.72),rgba(11,9,23,.94));
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--t3);margin-bottom:20px;flex-wrap:wrap;}
.breadcrumb a:hover{color:var(--secondary);}
.breadcrumb span{color:var(--t3);}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);
  gap:48px;
  align-items:end;
}
.page-hero h1{
  font-size:clamp(30px,4.4vw,50px);
  line-height:1.2;
  font-weight:800;
  letter-spacing:-.01em;
  margin-bottom:16px;
}
.page-hero h1 em{font-style:normal;color:var(--secondary);}
.hero-sub{font-size:17px;color:var(--t2);max-width:640px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.hero-badge{
  display:flex;align-items:baseline;gap:8px;
  padding:10px 18px;
  border-radius:999px;
  background:rgba(25,19,56,.72);
  border:1px solid var(--line);
}
.hero-badge b{font-family:var(--font-num);font-size:20px;color:var(--secondary);font-weight:700;}
.hero-badge span{font-size:13px;color:var(--t2);}
.hero-side{
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:rgba(25,19,56,.7);
  padding:24px;
  box-shadow:var(--shadow);
}
.hero-side h3{font-size:16px;font-weight:700;margin-bottom:14px;}
.hero-side ul{display:grid;gap:12px;}
.hero-side li{display:flex;gap:10px;font-size:14px;color:var(--t2);}
.hero-side li::before{
  content:"";width:8px;height:8px;border-radius:2px;background:var(--secondary);
  margin-top:9px;flex-shrink:0;
}

/* ===== 通用板块 ===== */
.section{padding:80px 0;}
.section.alt{background:var(--bg-1);}
.section-head{margin-bottom:36px;max-width:760px;}
.section-head h2{
  font-size:clamp(24px,3vw,36px);
  line-height:1.3;
  font-weight:700;
  letter-spacing:-.01em;
  margin-bottom:12px;
}
.section-head p{color:var(--t2);font-size:15px;max-width:680px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.18em;color:var(--secondary);
  text-transform:uppercase;margin-bottom:12px;font-weight:700;
}
.eyebrow::before{content:"";width:20px;height:2px;background:var(--secondary);border-radius:2px;}

/* ===== 数据条 ===== */
.stat-band{
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:linear-gradient(120deg,rgba(25,19,56,.9),rgba(18,14,38,.9));
  padding:30px 32px;
  display:grid;
  grid-template-columns:minmax(0,.7fr) minmax(0,2fr);
  gap:32px;
  align-items:center;
  box-shadow:var(--shadow);
}
.stat-band h3{font-size:18px;font-weight:700;line-height:1.5;}
.stat-band h3 span{display:block;font-size:13px;color:var(--t3);font-weight:400;margin-top:8px;}
.stat-items{display:grid;grid-template-columns:repeat(4,1fr);}
.stat-item{
  padding:0 20px;
  border-left:1px solid var(--line);
}
.stat-item:first-child{border-left:0;padding-left:0;}
.stat-item b{
  display:block;font-family:var(--font-num);font-size:clamp(28px,3.4vw,42px);
  font-weight:700;color:var(--secondary);line-height:1.1;
}
.stat-item span{display:block;font-size:13px;color:var(--t2);margin-top:8px;}

/* ===== 筛选条 ===== */
.filter-bar{
  display:flex;align-items:center;gap:16px;
  flex-wrap:wrap;
  padding:14px 18px;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--surface);
  margin-bottom:32px;
}
.filter-tabs{display:flex;gap:10px;overflow-x:auto;scrollbar-width:none;flex:1;}
.filter-tabs::-webkit-scrollbar{display:none;}
.tab{
  height:36px;
  padding:0 18px;
  border-radius:999px;
  font-size:14px;
  color:var(--t2);
  border:1px solid transparent;
  white-space:nowrap;
  transition:color var(--tr),background var(--tr),border-color var(--tr);
}
.tab:hover{color:var(--t1);background:var(--surface-2);}
.tab.active{
  background:rgba(200,255,77,.14);
  color:var(--secondary);
  border-color:rgba(200,255,77,.4);
  font-weight:700;
}
.filter-sort{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--t3);}
.filter-sort select{
  height:36px;padding:0 32px 0 14px;
  border-radius:var(--r-btn);
  border:1px solid var(--line);
  background:var(--surface-2) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23A9A2CE' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E") no-repeat right 10px center/16px;
  appearance:none;
  color:var(--t1);
  font-size:13px;
  cursor:pointer;
}
.filter-sort select:focus{border-color:var(--primary-2);outline:none;}

/* ===== 游戏横向卡列表（两列） ===== */
.game-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
.game-card{
  display:grid;
  grid-template-columns:40% 1fr;
  gap:0;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--surface);
  overflow:hidden;
  transition:transform var(--tr),border-color var(--tr),box-shadow var(--tr);
}
.game-card:hover{
  transform:translateY(-3px);
  border-color:var(--line-hover);
  box-shadow:var(--shadow),0 0 0 1px rgba(109,59,245,.35),0 0 24px rgba(109,59,245,.22);
}
.game-thumb{position:relative;overflow:hidden;background:var(--surface-2);}
.game-thumb img{
  width:100%;height:100%;min-height:200px;
  object-fit:cover;
  transition:transform 300ms cubic-bezier(.4,0,.2,1);
}
.game-card:hover .game-thumb img{transform:scale(1.04);}
.game-thumb .thumb-tag{
  position:absolute;top:12px;left:12px;
  z-index:2;
}
.game-body{padding:24px;display:flex;flex-direction:column;gap:12px;}
.game-body h3{font-size:19px;font-weight:700;line-height:1.4;}
.game-body h3 a:hover{color:var(--secondary);}
.game-points{display:grid;gap:8px;}
.game-points li{
  position:relative;
  padding-left:18px;
  font-size:14px;
  color:var(--t2);
  line-height:1.7;
  overflow:hidden;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
}
.game-points li::before{
  content:"";position:absolute;left:0;top:9px;
  width:8px;height:8px;border-radius:2px;background:var(--secondary);
}
.game-meta{
  display:flex;align-items:center;gap:14px;
  font-size:12px;color:var(--t3);
  font-family:var(--font-num);
  flex-wrap:wrap;
}
.game-meta .cn{font-family:var(--font-cn);}
.game-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--line);
}
.empty-panel{
  display:none;
  border:1px dashed rgba(255,255,255,.14);
  border-radius:var(--r-card);
  padding:56px 24px;
  text-align:center;
  color:var(--t2);
}
.empty-panel.show{display:block;}
.empty-panel p{margin-bottom:18px;}

/* ===== 上手流程 ===== */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.step{
  position:relative;
  padding:26px 22px;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:var(--surface);
  transition:transform var(--tr),border-color var(--tr);
}
.step:hover{transform:translateY(-3px);border-color:var(--line-hover);}
.step b{
  display:block;
  font-family:var(--font-num);
  font-size:30px;
  color:rgba(200,255,77,.5);
  line-height:1;
  margin-bottom:14px;
}
.step h3{font-size:17px;font-weight:700;margin-bottom:8px;}
.step p{font-size:14px;color:var(--t2);}

/* ===== 适用场景 ===== */
.scene-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.scene{
  padding:28px 24px;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(36,27,74,.9),rgba(25,19,56,.9));
  transition:transform var(--tr),border-color var(--tr),box-shadow var(--tr);
}
.scene:hover{transform:translateY(-3px);border-color:var(--line-hover);box-shadow:var(--shadow);}
.scene .scene-icon{
  width:44px;height:44px;
  border-radius:12px;
  display:grid;place-items:center;
  background:rgba(109,59,245,.24);
  border:1px solid rgba(139,92,246,.35);
  margin-bottom:18px;
}
.scene .scene-icon svg{width:22px;height:22px;stroke:var(--secondary);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.scene h3{font-size:18px;font-weight:700;margin-bottom:10px;}
.scene p{font-size:14px;color:var(--t2);}

/* ===== FAQ ===== */
.faq-wrap{max-width:920px;}
.faq-item{
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--surface);
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color var(--tr),background var(--tr);
}
.faq-item.open{border-color:var(--line-hover);background:var(--surface-2);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 22px;
  text-align:left;
  font-size:16px;
  font-weight:700;
  color:var(--t1);
  position:relative;
}
.faq-item.open .faq-q::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
  background:var(--secondary);border-radius:2px;
}
.faq-icon{
  position:relative;
  flex-shrink:0;
  width:22px;height:22px;
  border-radius:6px;
  border:1px solid var(--line);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--secondary);
  transform:translate(-50%,-50%);transition:transform var(--tr),opacity var(--tr);
}
.faq-icon::before{width:10px;height:2px;}
.faq-icon::after{width:2px;height:10px;}
.faq-item.open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height 280ms cubic-bezier(.4,0,.2,1);
}
.faq-a p{
  padding:0 22px 22px;
  font-size:15px;
  color:var(--t2);
  line-height:1.85;
}

/* ===== CTA ===== */
.cta-band{
  border-radius:var(--r-card);
  border:1px solid rgba(139,92,246,.35);
  background:
    radial-gradient(520px 260px at 88% 20%,rgba(200,255,77,.14),transparent 70%),
    linear-gradient(120deg,rgba(75,34,196,.55),rgba(18,14,38,.95));
  padding:44px 40px;
  display:grid;
  grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);
  gap:32px;
  align-items:center;
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.35;margin-bottom:12px;}
.cta-band p{color:var(--t2);font-size:15px;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}

/* ===== 页脚 ===== */
.site-footer{
  margin-top:80px;
  background:#0A0814;
  border-top:1px solid var(--line);
  padding-top:64px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .logo{margin-bottom:18px;}
.footer-brand p{font-size:14px;color:var(--t2);max-width:300px;}
.qr-box{
  margin-top:20px;
  width:120px;height:120px;
  border-radius:12px;
  border:1px dashed rgba(255,255,255,.16);
  display:grid;place-items:center;
  text-align:center;
  font-size:12px;
  color:var(--t3);
  line-height:1.6;
  background:rgba(255,255,255,.02);
}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:18px;color:var(--t1);}
.footer-col ul{display:grid;gap:12px;}
.footer-col li a,.footer-contact li{font-size:14px;color:var(--t2);}
.footer-col li a:hover{color:var(--secondary);}
.footer-contact li{line-height:1.7;}
.footer-contact b{font-family:var(--font-num);color:var(--t1);font-weight:600;}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0 30px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--t3);}
.footer-links{display:flex;gap:18px;flex-wrap:wrap;}
.footer-links a{font-size:13px;color:var(--t3);}
.footer-links a:hover{color:var(--secondary);}

/* ===== 返回顶部 ===== */
.to-top{
  position:fixed;
  right:24px;bottom:24px;
  width:46px;height:46px;
  border-radius:12px;
  background:var(--primary);
  color:#fff;
  display:grid;place-items:center;
  box-shadow:0 12px 28px rgba(109,59,245,.4);
  opacity:0;
  pointer-events:none;
  transform:translateY(12px);
  transition:opacity var(--tr),transform var(--tr);
  z-index:70;
}
.to-top.show{opacity:1;pointer-events:auto;transform:translateY(0);}
.to-top:hover{background:var(--primary-2);}
.to-top svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-side{max-width:520px;}
  .game-list{grid-template-columns:1fr;}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stat-band{grid-template-columns:1fr;gap:24px;}
  .stat-items{grid-template-columns:repeat(2,1fr);gap:20px 0;}
  .stat-item:nth-child(odd){border-left:0;padding-left:0;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-band{grid-template-columns:1fr;}
  .cta-actions{justify-content:flex-start;}
}

@media (max-width:768px){
  .header-top-inner{min-height:62px;gap:14px;}
  .search-box{display:none;}
  .header-actions .link-quiet{display:none;}
  .nav-toggle{display:block;}
  .header-nav{
    position:fixed;
    inset:62px 0 0 0;
    background:rgba(11,9,23,.98);
    border-top:1px solid var(--line);
    transform:translateX(100%);
    transition:transform 260ms cubic-bezier(.4,0,.2,1);
    overflow-y:auto;
    z-index:79;
    display:flex;
    flex-direction:column;
  }
  .header-nav.open{transform:translateX(0);}
  .nav-inner{
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:24px;
    min-height:auto;
  }
  .site-header.is-stuck .nav-inner{min-height:auto;}
  .nav-list{flex-direction:column;align-items:stretch;gap:0;}
  .nav-list a{padding:16px 0;border-bottom:1px solid var(--line);font-size:16px;}
  .nav-list a.active::after{display:none;}
  .nav-list a.active{color:var(--secondary);}
  .hot-words{margin-left:0;margin-top:24px;flex-wrap:nowrap;overflow-x:auto;padding-bottom:8px;}
  .section{padding:56px 0;}
  .page-hero{padding:48px 0 44px;}
  .game-card{grid-template-columns:1fr;}
  .game-thumb img{min-height:0;height:200px;}
  .steps{grid-template-columns:1fr;}
  .scene-grid{grid-template-columns:1fr;}
  .cta-band{padding:32px 24px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .to-top{right:16px;bottom:16px;}
}

@media (max-width:520px){
  .container{padding:0 18px;}
  .logo-text em{display:none;}
  .hero-badges{gap:10px;}
  .hero-badge{padding:8px 14px;}
  .hero-badge b{font-size:17px;}
  .game-body{padding:20px;}
  .stat-items{grid-template-columns:1fr;gap:16px;}
  .stat-item{border-left:0;padding-left:0;border-top:1px solid var(--line);padding-top:16px;}
  .stat-item:first-child{border-top:0;padding-top:0;}
  .filter-bar{padding:12px;}
  .cta-actions .btn{width:100%;}
}

/* roulang page: category3 */
:root{
  --primary:#6D3BF5;
  --primary-2:#8B5CF6;
  --primary-deep:#4B22C4;
  --secondary:#C8FF4D;
  --accent:#FF7A45;
  --bg-0:#0B0917;
  --bg-1:#120E26;
  --surface:#191338;
  --surface-2:#241B4A;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(109,59,245,.65);
  --t1:#EFECFB;
  --t2:#A9A2CE;
  --t3:#6F6892;
  --paper:#F7F6FC;
  --paper-text:#1B1733;
  --ok:#4ADE80;
  --err:#FF5A5A;
  --r-card:16px;
  --r-btn:10px;
  --r-badge:8px;
  --shadow:0 12px 32px rgba(0,0,0,.45);
  --shadow-hover:0 0 0 1px rgba(109,59,245,.6),0 0 24px rgba(109,59,245,.22);
  --t-fast:200ms cubic-bezier(.4,0,.2,1);
  --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
  --font-num:"Space Grotesk","Segoe UI",system-ui,-apple-system,sans-serif;
  --max:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--t1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color var(--t-fast),border-color var(--t-fast),background var(--t-fast)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{
  outline:2px solid var(--secondary);
  outline-offset:2px;
  border-radius:6px;
}
button{font-family:inherit;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3,h4{font-weight:700;letter-spacing:-.01em;color:var(--t1)}
input,select,textarea{font-family:inherit;font-size:15px}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px}
@media(min-width:1280px){.container{padding:0 32px}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;
  border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;
  transition:transform var(--t-fast),background var(--t-fast),border-color var(--t-fast),color var(--t-fast),box-shadow var(--t-fast);
  white-space:nowrap;
}
.btn-primary{background:var(--secondary);color:#141033;border-color:var(--secondary)}
.btn-primary:hover{background:#d9ff70;transform:translateY(-2px);box-shadow:0 10px 24px rgba(200,255,77,.22)}
.btn-primary:active{transform:translateY(0);background:#b6ea3d}
.btn-ghost{background:transparent;color:var(--t1);border-color:rgba(109,59,245,.7)}
.btn-ghost:hover{background:rgba(109,59,245,.18);border-color:var(--primary-2);transform:translateY(-2px)}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px;border-radius:9px}
.btn-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--secondary);font-weight:600;font-size:15px}
.btn-arrow::after{content:"→";transition:transform var(--t-fast)}
.btn-arrow:hover::after{transform:translateX(4px)}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(11,9,23,.86);
  border-bottom:1px solid var(--line);
  transition:background var(--t-fast),border-color var(--t-fast),box-shadow var(--t-fast);
}
.site-header.scrolled{background:rgba(11,9,23,.96);box-shadow:0 10px 30px rgba(0,0,0,.5)}
.header-top-inner{display:flex;align-items:center;gap:18px;min-height:68px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:40px;height:40px;flex:none;display:grid;place-items:center;
  border-radius:12px;background:linear-gradient(140deg,var(--primary),var(--primary-deep));
  box-shadow:0 0 0 1px rgba(200,255,77,.18);
}
.logo-mark svg{width:24px;height:24px}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text strong{font-size:17px;letter-spacing:.01em;color:var(--t1)}
.logo-text em{font-style:normal;font-size:11px;color:var(--t3);letter-spacing:.14em}
.search-box{
  display:flex;align-items:center;gap:10px;flex:1;max-width:380px;
  background:var(--surface);border:1px solid var(--line);border-radius:999px;
  padding:0 16px;height:42px;transition:border-color var(--t-fast),box-shadow var(--t-fast);
}
.search-box:focus-within{border-color:var(--primary-2);box-shadow:0 0 0 3px rgba(109,59,245,.22)}
.search-box svg{width:17px;height:17px;color:var(--t3);flex:none}
.search-box input{
  flex:1;background:transparent;border:0;color:var(--t1);height:100%;outline:none;
  caret-color:var(--secondary);font-size:14px;
}
.search-box input::placeholder{color:var(--t3)}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:auto}
.link-quiet{color:var(--t2);font-size:14px}
.link-quiet:hover{color:var(--secondary)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;
  background:var(--surface);position:relative;
}
.nav-toggle span,.nav-toggle::before,.nav-toggle::after{
  content:"";position:absolute;left:12px;right:12px;height:2px;background:var(--t1);border-radius:2px;
  transition:transform var(--t-fast),opacity var(--t-fast);
}
.nav-toggle::before{top:14px}
.nav-toggle span{top:21px}
.nav-toggle::after{top:28px}
.nav-toggle[aria-expanded="true"]::before{transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span{opacity:0}
.nav-toggle[aria-expanded="true"]::after{transform:translateY(-7px) rotate(-45deg)}

.header-nav{border-top:1px solid var(--line);background:rgba(18,14,38,.55)}
.nav-inner{display:flex;align-items:center;gap:24px;min-height:46px;transition:min-height var(--t-fast)}
.site-header.scrolled .nav-inner{min-height:38px}
.nav-list{display:flex;align-items:center;gap:4px;flex-wrap:wrap}
.nav-list a{
  display:inline-block;padding:10px 12px;font-size:15px;color:var(--t2);
  border-bottom:2px solid transparent;transition:color var(--t-fast),border-color var(--t-fast);
}
.nav-list a:hover{color:var(--t1)}
.nav-list a.active{color:var(--t1);border-bottom-color:var(--secondary);font-weight:600}
.hot-words{display:flex;align-items:center;gap:8px;margin-left:auto;overflow-x:auto;scrollbar-width:none}
.hot-words::-webkit-scrollbar{display:none}
.hot-label{font-size:12px;color:var(--t3);white-space:nowrap}
.pill{
  display:inline-block;padding:5px 12px;border-radius:999px;border:1px solid var(--line);
  background:var(--surface);color:var(--t2);font-size:12.5px;white-space:nowrap;
  transition:color var(--t-fast),border-color var(--t-fast),background var(--t-fast);
}
.pill:hover{color:var(--secondary);border-color:var(--line-strong);background:var(--surface-2)}

/* ---------- 页头 ---------- */
.page-head{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,rgba(11,9,23,.78),rgba(11,9,23,.96)),
             url("/assets/images/backpic/back-2.png") center/cover no-repeat;
  padding:64px 0 56px;
  border-bottom:1px solid var(--line);
}
.page-head::before,.page-head::after{
  content:"";position:absolute;border-radius:50%;filter:blur(60px);opacity:.16;pointer-events:none;
}
.page-head::before{width:420px;height:420px;background:var(--primary);top:-160px;left:-80px}
.page-head::after{width:340px;height:340px;background:var(--secondary);bottom:-200px;right:-60px}
.page-head .container{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--t3);margin-bottom:18px}
.breadcrumb a:hover{color:var(--secondary)}
.breadcrumb span.sep{color:var(--t3)}
.breadcrumb .now{color:var(--t2)}
.page-head h1{
  font-size:clamp(28px,4.2vw,48px);line-height:1.2;font-weight:800;letter-spacing:-.01em;
  max-width:20em;
}
.page-head h1 .hl{color:var(--secondary)}
.page-sub{margin-top:16px;font-size:16.5px;color:var(--t2);max-width:62ch}
.stat-row{display:flex;flex-wrap:wrap;gap:28px;margin-top:30px}
.stat{min-width:118px}
.stat b{display:block;font-family:var(--font-num);font-size:30px;font-weight:700;color:var(--secondary);line-height:1.2}
.stat span{font-size:13px;color:var(--t3)}

/* ---------- 筛选条 ---------- */
.filter-bar{
  position:sticky;top:114px;z-index:40;
  background:rgba(18,14,38,.92);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.filter-inner{display:flex;align-items:center;gap:18px;min-height:64px;flex-wrap:wrap}
.tabs{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;padding:4px 0}
.tabs::-webkit-scrollbar{display:none}
.tab{
  padding:8px 16px;border-radius:999px;border:1px solid var(--line);background:var(--surface);
  color:var(--t2);font-size:14px;white-space:nowrap;transition:all var(--t-fast);
}
.tab:hover{color:var(--t1);border-color:var(--line-strong)}
.tab.active{background:var(--secondary);border-color:var(--secondary);color:#141033;font-weight:600}
.sort-wrap{margin-left:auto;display:flex;align-items:center;gap:10px}
.sort-wrap label{font-size:13px;color:var(--t3)}
.sort-wrap select{
  height:40px;padding:0 12px;border-radius:var(--r-btn);background:var(--surface);
  color:var(--t1);border:1px solid var(--line);outline:none;transition:border-color var(--t-fast);
}
.sort-wrap select:focus{border-color:var(--primary-2)}

/* ---------- 通用板块 ---------- */
.section{padding:72px 0}
.section.alt{background:var(--bg-1)}
.section-head{display:flex;align-items:flex-end;gap:20px;margin-bottom:34px;flex-wrap:wrap}
.section-head h2{font-size:clamp(22px,2.8vw,32px);line-height:1.3}
.section-head p{color:var(--t2);font-size:15px;max-width:60ch;margin-top:8px}
.section-head .more{margin-left:auto}

/* ---------- 杂志式内容区 ---------- */
.mag-layout{display:grid;grid-template-columns:1.9fr 1fr;gap:24px;align-items:start}
.feature-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow);transition:transform var(--t-fast),box-shadow var(--t-fast),border-color var(--t-fast);
}
.feature-card:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--shadow),var(--shadow-hover)}
.feature-media{position:relative;aspect-ratio:16/9;overflow:hidden}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform 400ms cubic-bezier(.4,0,.2,1)}
.feature-card:hover .feature-media img{transform:scale(1.03)}
.feature-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,9,23,0) 40%,rgba(11,9,23,.82));
}
.feature-badge{
  position:absolute;top:16px;left:16px;z-index:2;padding:6px 12px;border-radius:var(--r-badge);
  background:var(--primary);color:#fff;font-size:12.5px;font-weight:600;
}
.feature-body{padding:26px 28px 28px}
.feature-body h3{font-size:clamp(20px,2.2vw,26px);line-height:1.35}
.feature-body p{margin-top:14px;color:var(--t2);font-size:15.5px;line-height:1.9;max-width:70ch}
.meta-row{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:20px;font-size:13px;color:var(--t3)}
.meta-row .num{font-family:var(--font-num);color:var(--t2)}
.meta-row .tag{color:var(--secondary)}
.feature-actions{display:flex;align-items:center;gap:16px;margin-top:24px;flex-wrap:wrap}

.side-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 22px 12px;box-shadow:var(--shadow);
}
.side-panel h3{
  font-size:16px;padding-bottom:14px;margin-bottom:6px;border-bottom:1px solid var(--line);
  display:flex;align-items:center;gap:8px;
}
.side-panel h3::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--secondary)}
.side-list li{border-bottom:1px dashed rgba(255,255,255,.07)}
.side-list li:last-child{border-bottom:0}
.side-list a{display:block;padding:14px 0;transition:color var(--t-fast),padding-left var(--t-fast)}
.side-list a:hover{color:var(--primary-2);padding-left:6px}
.side-list .t{font-size:15px;line-height:1.6;display:block}
.side-list .d{display:block;margin-top:6px;font-size:12.5px;color:var(--t3);font-family:var(--font-num)}

/* ---------- 适用场景 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.scene-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;transition:transform var(--t-fast),border-color var(--t-fast),box-shadow var(--t-fast);
}
.scene-card:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--shadow-hover)}
.scene-icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:rgba(109,59,245,.2);border:1px solid rgba(109,59,245,.4);margin-bottom:16px;
}
.scene-icon svg{width:22px;height:22px;stroke:var(--secondary);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.scene-card h3{font-size:18px;margin-bottom:10px}
.scene-card p{color:var(--t2);font-size:14.5px;line-height:1.85}
.scene-card ul{margin-top:14px;display:grid;gap:8px}
.scene-card li{position:relative;padding-left:18px;font-size:14px;color:var(--t2)}
.scene-card li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;background:var(--secondary);border-radius:2px;
}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step{
  position:relative;padding:26px 22px;border-radius:var(--r-card);
  background:var(--bg-0);border:1px solid var(--line);
  clip-path:polygon(0 0,calc(100% - 14px) 0,100% 14px,100% 100%,0 100%);
  transition:border-color var(--t-fast),transform var(--t-fast);
}
.step:hover{border-color:var(--line-strong);transform:translateY(-3px)}
.step .no{
  font-family:var(--font-num);font-size:34px;font-weight:700;color:var(--primary-2);
  line-height:1;opacity:.9;
}
.step h3{font-size:17px;margin:14px 0 10px}
.step p{font-size:14px;color:var(--t2);line-height:1.8}

/* ---------- 数据条 ---------- */
.data-band{
  background:linear-gradient(100deg,rgba(109,59,245,.22),rgba(11,9,23,.5));
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.data-inner{display:grid;grid-template-columns:1fr 2.4fr;gap:32px;align-items:center;padding:52px 0}
.data-inner h2{font-size:clamp(20px,2.4vw,28px);line-height:1.35}
.data-inner h2 span{display:block;font-size:14px;color:var(--t3);font-weight:400;margin-top:10px;letter-spacing:.02em}
.data-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.data-item{padding-left:20px;border-left:1px solid rgba(255,255,255,.14)}
.data-item b{display:block;font-family:var(--font-num);font-size:clamp(28px,3.2vw,40px);font-weight:700;color:var(--secondary);line-height:1.15}
.data-item span{font-size:13.5px;color:var(--t2)}

/* ---------- 浅色阅读面板 ---------- */
.paper{
  background:var(--paper);color:var(--paper-text);border-radius:18px;padding:36px 40px;
  box-shadow:var(--shadow);
}
.paper h2{color:#241C4D;font-size:clamp(21px,2.4vw,28px);margin-bottom:16px}
.paper h3{color:#2C2358;font-size:18px;margin:26px 0 10px}
.paper p{color:#413A63;font-size:16px;line-height:1.9;margin-bottom:14px}
.paper ul{margin:0 0 16px;display:grid;gap:10px}
.paper li{position:relative;padding-left:20px;color:#413A63;font-size:15.5px}
.paper li::before{content:"";position:absolute;left:0;top:9px;width:8px;height:8px;background:var(--primary);border-radius:2px}
.paper .quote{
  border-left:4px solid var(--primary);background:rgba(109,59,245,.08);
  padding:16px 20px;border-radius:0 12px 12px 0;color:#3B3363;font-size:15.5px;margin:18px 0;
}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;transition:border-color var(--t-fast);
}
.faq-item[open]{border-color:var(--line-strong)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 22px;display:flex;align-items:center;gap:14px;
  font-size:16px;font-weight:600;color:var(--t1);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";margin-left:auto;font-family:var(--font-num);font-size:20px;color:var(--secondary);
  transition:transform var(--t-fast);
}
.faq-item[open] summary::after{transform:rotate(180deg);content:"−"}
.faq-item .ans{
  padding:0 22px 20px 22px;border-left:3px solid var(--secondary);margin-left:22px;
  color:var(--t2);font-size:14.6px;line-height:1.9;
}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(120deg,rgba(109,59,245,.28),rgba(11,9,23,.2)),
             url("/assets/images/backpic/back-3.png") center/cover no-repeat;
  border-radius:20px;border:1px solid var(--line);padding:46px 40px;
  display:flex;align-items:center;gap:28px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(21px,2.6vw,30px);line-height:1.35;max-width:22em}
.cta-band p{color:var(--t2);margin-top:12px;font-size:15px;max-width:56ch}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;margin-left:auto}

/* ---------- 页脚 ---------- */
.site-footer{background:#0A0814;border-top:1px solid var(--line);margin-top:8px;position:relative}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(109,59,245,.7),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;padding:60px 0 40px}
.footer-brand p{color:var(--t2);font-size:14px;margin-top:16px;max-width:30ch;line-height:1.8}
.qr-box{
  margin-top:18px;width:112px;height:112px;border-radius:12px;border:1px dashed rgba(255,255,255,.18);
  display:grid;place-items:center;text-align:center;font-size:12.5px;color:var(--t3);line-height:1.6;
  background:rgba(255,255,255,.02);
}
.footer-col h4{font-size:15px;margin-bottom:18px;color:var(--t1)}
.footer-col ul{display:grid;gap:12px}
.footer-col a{color:var(--t2);font-size:14px}
.footer-col a:hover{color:var(--secondary)}
.footer-contact li{color:var(--t2);font-size:14px}
.footer-contact b{font-family:var(--font-num);color:var(--t1);font-weight:600}
.footer-bottom{
  border-top:1px solid var(--line);padding:22px 0;display:flex;align-items:center;gap:20px;flex-wrap:wrap;
}
.footer-bottom p{color:var(--t3);font-size:13px}
.footer-links{display:flex;gap:18px;flex-wrap:wrap;margin-left:auto}
.footer-links a{color:var(--t3);font-size:13px}
.footer-links a:hover{color:var(--secondary)}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:22px;bottom:26px;width:46px;height:46px;border-radius:12px;
  background:var(--primary);border:1px solid rgba(255,255,255,.12);color:#fff;
  display:grid;place-items:center;opacity:0;visibility:hidden;transform:translateY(10px);
  transition:all var(--t-fast);z-index:70;box-shadow:var(--shadow);
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--primary-2)}
.to-top svg{width:20px;height:20px;stroke:#fff;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

/* ---------- 响应式 ---------- */
@media(max-width:1024px){
  .mag-layout{grid-template-columns:1fr}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .data-inner{grid-template-columns:1fr;gap:26px}
  .data-grid{grid-template-columns:repeat(2,1fr)}
  .faq-wrap{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .search-box{max-width:280px}
}
@media(max-width:768px){
  .header-top-inner{min-height:60px;gap:12px}
  .search-box{display:none}
  .nav-toggle{display:block}
  .link-quiet{display:none}
  .header-nav{
    position:fixed;inset:60px 0 0 0;background:rgba(11,9,23,.98);
    border-top:1px solid var(--line);transform:translateY(-8px);opacity:0;visibility:hidden;
    transition:opacity var(--t-fast),transform var(--t-fast),visibility var(--t-fast);
    overflow-y:auto;padding-bottom:90px;
  }
  .header-nav.open{opacity:1;visibility:visible;transform:translateY(0)}
  .nav-inner{flex-direction:column;align-items:stretch;gap:6px;padding-top:18px;min-height:0}
  .nav-list{flex-direction:column;align-items:stretch}
  .nav-list a{border-bottom:1px solid var(--line);padding:14px 4px;font-size:16px}
  .nav-list a.active{border-bottom-color:var(--line)}
  .nav-list a.active::before{content:"";display:inline-block;width:8px;height:8px;background:var(--secondary);border-radius:2px;margin-right:10px}
  .hot-words{margin:16px 0 0;padding-bottom:8px}
  .section{padding:48px 0}
  .page-head{padding:40px 0 36px}
  .stat-row{gap:18px}
  .stat b{font-size:24px}
  .filter-bar{top:60px}
  .filter-inner{min-height:56px;gap:12px}
  .sort-wrap{margin-left:0;width:100%}
  .sort-wrap select{flex:1}
  .scene-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .paper{padding:24px 20px}
  .feature-body{padding:20px}
  .cta-band{padding:30px 22px}
  .cta-actions{margin-left:0;width:100%}
  .footer-grid{grid-template-columns:1fr;padding:44px 0 28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .footer-links{margin-left:0}
  .to-top{right:14px;bottom:16px}
}
@media(max-width:520px){
  .container{padding:0 18px}
  .data-grid{grid-template-columns:1fr}
  .data-item{padding-left:14px}
  .page-head h1{font-size:26px}
  .btn{width:100%}
  .btn-sm{width:auto}
  .feature-actions .btn,.cta-actions .btn{width:100%}
}

/* roulang page: category4 */
:root{
  --primary:#6D3BF5;
  --primary-2:#8B5CF6;
  --primary-deep:#4B22C4;
  --secondary:#C8FF4D;
  --accent:#FF7A45;
  --bg-0:#0B0917;
  --bg-1:#120E26;
  --surface:#191338;
  --surface-2:#241B4A;
  --line:rgba(255,255,255,.08);
  --line-hover:rgba(109,59,245,.65);
  --t1:#EFECFB;
  --t2:#A9A2CE;
  --t3:#6F6892;
  --paper:#F7F6FC;
  --paper-text:#1B1733;
  --success:#4ADE80;
  --error:#FF5A5A;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-badge:8px;
  --shadow:0 12px 32px rgba(0,0,0,.45);
  --shadow-hover:0 0 0 1px rgba(109,59,245,.6),0 0 24px rgba(109,59,245,.22);
  --ease:200ms cubic-bezier(.4,0,.2,1);
  --font-num:"Space Grotesk","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--t1);
  background:var(--bg-0);
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color var(--ease)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:700}
p{margin:0}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--secondary);outline-offset:2px}

.container{max-width:1240px;margin:0 auto;padding:0 24px}
@media (min-width:1280px){.container{padding:0 32px}}

/* ============ 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-weight:600;font-size:15px;white-space:nowrap;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
}
.btn-primary{background:var(--secondary);color:#141024;border:1px solid var(--secondary)}
.btn-primary:hover{background:#D6FF6E;box-shadow:0 0 22px rgba(200,255,77,.35);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0);background:#B8EC3C}
.btn-outline{background:transparent;color:var(--t1);border:1px solid rgba(109,59,245,.7)}
.btn-outline:hover{background:rgba(109,59,245,.16);border-color:var(--primary-2);transform:translateY(-2px)}
.btn-ghost{background:rgba(255,255,255,.04);color:var(--t1);border:1px solid var(--line)}
.btn-ghost:hover{background:var(--surface-2);border-color:var(--line-hover)}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px;border-radius:9px}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--secondary);font-weight:600;font-size:14px}
.link-arrow::after{content:"→";transition:transform var(--ease)}
.link-arrow:hover::after{transform:translateX(4px)}
.link-quiet{color:var(--t2);font-size:14px}
.link-quiet:hover{color:var(--secondary)}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(11,9,23,.88);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background var(--ease),border-color var(--ease);
}
.site-header.scrolled{background:rgba(11,9,23,.97);border-bottom-color:var(--line);box-shadow:0 10px 30px rgba(0,0,0,.45)}
.header-top-inner{display:flex;align-items:center;gap:20px;height:66px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:none}
.logo-mark{width:38px;height:38px;border-radius:11px;background:linear-gradient(140deg,var(--primary-deep),var(--primary));display:inline-flex;align-items:center;justify-content:center;box-shadow:0 6px 18px rgba(109,59,245,.4)}
.logo-mark svg{width:22px;height:22px}
.logo-text strong{display:block;font-size:17px;font-weight:800;letter-spacing:.02em;line-height:1.2}
.logo-text em{display:block;font-style:normal;font-size:11px;color:var(--t3);letter-spacing:.16em;line-height:1.4}
.search-box{
  flex:1;max-width:380px;margin:0 auto;display:flex;align-items:center;gap:10px;
  background:var(--surface);border:1px solid var(--line);border-radius:10px;
  padding:0 14px;height:42px;transition:border-color var(--ease),box-shadow var(--ease);
}
.search-box svg{width:17px;height:17px;color:var(--t3);flex:none}
.search-box input{flex:1;background:none;border:0;height:100%;font-size:14px;color:var(--t1);outline:none}
.search-box input::placeholder{color:var(--t3)}
.search-box input::-webkit-search-cancel-button{-webkit-appearance:none}
.search-box:focus-within{border-color:var(--primary-2);box-shadow:0 0 0 3px rgba(109,59,245,.22)}
.header-actions{display:flex;align-items:center;gap:16px;flex:none}
.nav-toggle{display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);background:var(--surface);position:relative}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:12px;width:20px;height:2px;background:var(--t1);border-radius:2px;transition:transform var(--ease),opacity var(--ease);
}
.nav-toggle span{top:21px}
.nav-toggle span::before{content:"";top:-6px;left:0}
.nav-toggle span::after{content:"";top:6px;left:0}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg)}

.header-nav{border-top:1px solid var(--line);transition:height var(--ease)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:46px}
.header-nav.is-shrink .nav-inner{height:38px}
.nav-list{display:flex;align-items:center;gap:26px}
.nav-list a{position:relative;display:inline-block;padding:4px 0;font-size:15px;color:var(--t2)}
.nav-list a::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--secondary);transform:scaleX(0);transform-origin:left;transition:transform var(--ease)}
.nav-list a:hover{color:var(--t1)}
.nav-list a:hover::after{transform:scaleX(1)}
.nav-list a.active{color:var(--t1);font-weight:700}
.nav-list a.active::after{transform:scaleX(1)}
.hot-words{display:flex;align-items:center;gap:8px;overflow-x:auto;scrollbar-width:none;padding:4px 0}
.hot-words::-webkit-scrollbar{display:none}
.hot-label{font-size:12px;color:var(--t3);white-space:nowrap}
.pill{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;
  border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--t2);
  font-size:13px;white-space:nowrap;transition:all var(--ease);
}
.pill:hover{color:#141024;background:var(--secondary);border-color:var(--secondary)}

/* ============ 面包屑 & 页头 ============ */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--t3);margin-bottom:18px}
.breadcrumb a:hover{color:var(--secondary)}
.breadcrumb span.sep{color:var(--t3);opacity:.7}

.page-hero{position:relative;overflow:hidden;background:var(--bg-1)}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-2.png);
  background-size:cover;background-position:center;
  opacity:.26;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(520px 320px at 12% 8%,rgba(109,59,245,.34),transparent 68%),
    radial-gradient(420px 300px at 88% 82%,rgba(200,255,77,.14),transparent 70%),
    linear-gradient(180deg,rgba(11,9,23,.72),rgba(11,9,23,.96));
}
.page-hero .container{position:relative;z-index:2;padding-top:64px;padding-bottom:64px}
.hero-kicker{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;margin-bottom:18px;
  border-radius:999px;background:rgba(109,59,245,.2);border:1px solid rgba(109,59,245,.55);
  color:var(--secondary);font-size:13px;letter-spacing:.04em;
}
.page-hero h1{font-size:clamp(28px,4.2vw,46px);font-weight:800;letter-spacing:-.01em;max-width:900px}
.page-hero .lead{margin-top:16px;max-width:720px;color:var(--t2);font-size:17px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-note{display:flex;flex-wrap:wrap;gap:20px;margin-top:30px;padding-top:22px;border-top:1px solid var(--line)}
.hero-note li{font-size:13px;color:var(--t2)}
.hero-note b{font-family:var(--font-num);color:var(--secondary);font-size:16px;margin-right:6px}

/* ============ 通用板块 ============ */
.section{padding:80px 0}
.section.alt{background:var(--bg-1)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:36px}
.section-head h2{font-size:clamp(22px,2.8vw,32px);font-weight:700}
.section-head p{margin-top:10px;color:var(--t2);font-size:15px;max-width:680px}
.eyebrow{display:inline-block;font-size:12px;letter-spacing:.18em;color:var(--primary-2);margin-bottom:10px;text-transform:uppercase}

/* 数据条 */
.stat-strip{
  background:linear-gradient(120deg,rgba(75,34,196,.42),rgba(11,9,23,.9));
  border:1px solid var(--line);border-radius:18px;
  padding:28px 30px;display:grid;grid-template-columns:1fr 2.4fr;gap:26px;align-items:center;
}
.stat-strip h3{font-size:18px;font-weight:700}
.stat-strip .tip{color:var(--t2);font-size:13px;margin-top:8px}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stat-item{padding-left:18px;border-left:1px solid var(--line)}
.stat-item:first-child{border-left:0;padding-left:0}
.stat-item b{display:block;font-family:var(--font-num);font-size:clamp(26px,3.4vw,40px);color:var(--secondary);line-height:1.1}
.stat-item span{display:block;margin-top:6px;font-size:13px;color:var(--t2)}

/* 筛选条 */
.filter-bar{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:14px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  margin-bottom:36px;flex-wrap:wrap;
}
.tag-tabs{display:flex;gap:10px;overflow-x:auto;scrollbar-width:none;padding:4px 0}
.tag-tabs::-webkit-scrollbar{display:none}
.tag-tab{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:999px;
  border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--t2);
  font-size:14px;white-space:nowrap;transition:all var(--ease);
}
.tag-tab:hover{color:var(--t1);border-color:var(--line-hover)}
.tag-tab.active{background:var(--secondary);border-color:var(--secondary);color:#141024;font-weight:700}
.sort-note{font-size:13px;color:var(--t3)}

/* 主推公告卡 */
.feature-announce{
  display:grid;grid-template-columns:300px 1fr;gap:26px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;margin-bottom:34px;transition:all var(--ease);
}
.feature-announce:hover{border-color:var(--line-hover);box-shadow:var(--shadow-hover);transform:translateY(-3px)}
.feature-announce img{width:100%;height:100%;min-height:190px;object-fit:cover}
.feature-announce .fa-body{padding:26px 26px 26px 0}
.feature-announce h3{font-size:20px;margin-top:12px}
.feature-announce p{margin-top:10px;color:var(--t2);font-size:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.feature-announce .meta{display:block;margin-top:14px;font-size:13px;color:var(--t3);font-family:var(--font-num)}

.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--radius-badge);
  font-size:12px;background:rgba(109,59,245,.22);color:#CBB9FF;border:1px solid rgba(109,59,245,.4);
}
.badge-accent{background:rgba(255,122,69,.16);color:#FFB291;border-color:rgba(255,122,69,.45)}
.badge-lime{background:rgba(200,255,77,.14);color:var(--secondary);border-color:rgba(200,255,77,.4)}

/* 公告布局 */
.announce-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:34px;align-items:start}

/* 时间轴 */
.timeline{position:relative;padding-left:30px}
.timeline::before{
  content:"";position:absolute;left:8px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,rgba(109,59,245,.9),rgba(109,59,245,.06));
}
.tl-item{position:relative;margin-bottom:22px}
.tl-item::before{
  content:"";position:absolute;left:-29px;top:22px;width:12px;height:12px;border-radius:50%;
  background:var(--secondary);
  box-shadow:0 0 0 4px rgba(200,255,77,.14),0 0 16px rgba(200,255,77,.6);
}
.tl-date{
  display:inline-block;font-family:var(--font-num);font-size:13px;color:var(--t3);
  letter-spacing:.06em;margin-bottom:8px;
}
.tl-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px 22px;transition:all var(--ease);
}
.tl-card:hover{border-color:var(--line-hover);box-shadow:var(--shadow-hover);transform:translateY(-3px)}
.tl-card h3{font-size:17px}
.tl-card h3 a:hover{color:var(--secondary)}
.tl-card p{margin-top:10px;color:var(--t2);font-size:14px}
.tl-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:14px;font-size:13px;color:var(--t3)}
.tl-meta .pill-time{font-family:var(--font-num)}

/* 侧栏 */
.side-col{position:sticky;top:122px;display:flex;flex-direction:column;gap:20px}
.faq-panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:20px 20px 10px}
.faq-panel h3{font-size:16px;margin-bottom:6px}
.faq-panel .sub{font-size:13px;color:var(--t3);margin-bottom:12px}
details.faq{border-top:1px solid var(--line);padding:14px 0}
details.faq:first-of-type{border-top:0}
details.faq summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;justify-content:space-between;gap:12px;
  font-size:14px;font-weight:600;color:var(--t1);line-height:1.6;
}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{content:"+";color:var(--secondary);font-size:19px;line-height:1;flex:none;transition:transform var(--ease)}
details.faq[open] summary::after{content:"−"}
details.faq[open]{border-left:3px solid var(--secondary);padding-left:12px;margin-left:-3px}
details.faq p{margin-top:10px;font-size:13.5px;color:var(--t2);line-height:1.85}
.side-card{background:linear-gradient(150deg,rgba(75,34,196,.36),rgba(25,19,56,.95));border:1px solid var(--line);border-radius:var(--radius-card);padding:22px}
.side-card h3{font-size:16px}
.side-card p{margin-top:10px;font-size:13.5px;color:var(--t2)}
.side-card .btn{margin-top:16px;width:100%}
.side-list li{display:flex;gap:10px;padding:10px 0;border-bottom:1px solid var(--line);font-size:14px}
.side-list li:last-child{border-bottom:0}
.side-list b{font-family:var(--font-num);color:var(--secondary);width:22px;flex:none}
.side-list a:hover{color:var(--secondary)}

/* 步骤流程 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.step-card{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:26px 22px;transition:all var(--ease);
}
.step-card:hover{border-color:var(--line-hover);transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;
  border-radius:10px;background:rgba(109,59,245,.24);border:1px solid rgba(109,59,245,.5);
  font-family:var(--font-num);color:var(--secondary);font-weight:700;
}
.step-card h3{margin-top:16px;font-size:17px}
.step-card p{margin-top:10px;font-size:14px;color:var(--t2)}

/* 须知双列 */
.notice-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:26px}
.panel{
  background:var(--paper);color:var(--paper-text);border-radius:18px;padding:34px;
}
.panel h3{font-size:20px;color:#1B1733}
.panel p{margin-top:14px;font-size:15px;line-height:1.9;color:#413A63}
.panel ul{margin-top:18px;display:grid;gap:12px}
.panel li{position:relative;padding-left:22px;font-size:15px;color:#2A2447}
.panel li::before{content:"";position:absolute;left:0;top:9px;width:9px;height:9px;background:var(--primary);border-radius:2px}
.dark-panel{background:var(--surface);color:var(--t1);border:1px solid var(--line)}
.dark-panel h3{color:var(--t1)}
.dark-panel p{color:var(--t2)}
.dark-panel li{color:var(--t2)}
.dark-panel li::before{background:var(--secondary)}

/* CTA 表单 */
.cta-section{padding:80px 0}
.cta-wrap{
  display:grid;grid-template-columns:1fr 1.05fr;gap:36px;
  background:linear-gradient(135deg,rgba(75,34,196,.4),rgba(18,14,38,.96));
  border:1px solid var(--line);border-radius:20px;padding:44px;
}
.cta-wrap h2{font-size:clamp(22px,2.8vw,32px)}
.cta-wrap .desc{margin-top:16px;color:var(--t2);font-size:15px}
.cta-points{margin-top:22px;display:grid;gap:12px}
.cta-points li{display:flex;gap:10px;font-size:14px;color:var(--t2)}
.cta-points li::before{content:"";width:8px;height:8px;margin-top:11px;border-radius:2px;background:var(--secondary);flex:none}
.form-card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:28px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:var(--t2);margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;background:#120E26;border:1px solid var(--line);border-radius:10px;
  padding:12px 14px;font-size:14px;color:var(--t1);outline:none;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.field textarea{min-height:96px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--primary-2);box-shadow:0 0 0 3px rgba(109,59,245,.2);caret-color:var(--secondary)}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--error)}
.field .err{display:none;margin-top:6px;font-size:12.5px;color:var(--error)}
.field.has-error .err{display:block}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--t2);margin:6px 0 18px}
.check-row input{width:18px;height:18px;margin-top:3px;accent-color:var(--primary)}
.form-msg{display:none;margin-top:14px;padding:12px 14px;border-radius:10px;font-size:13.5px}
.form-msg.ok{display:block;background:rgba(74,222,128,.12);border:1px solid rgba(74,222,128,.4);color:#9DEFC0}
.form-msg.bad{display:block;background:rgba(255,90,90,.12);border:1px solid rgba(255,90,90,.4);color:#FFB4B4}

/* 页脚 */
.site-footer{background:#0A0814;border-top:1px solid var(--line);padding:64px 0 0;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:34px}
.footer-brand p{margin-top:16px;color:var(--t2);font-size:14px;max-width:280px}
.qr-box{
  margin-top:18px;width:120px;height:120px;border-radius:14px;
  border:1px dashed rgba(255,255,255,.16);display:flex;align-items:center;justify-content:center;
  text-align:center;font-size:12px;color:var(--t3);line-height:1.7;
}
.footer-col h4{font-size:15px;margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:var(--t2)}
.footer-col a:hover{color:var(--secondary)}
.footer-contact li{font-size:14px;color:var(--t2)}
.footer-contact b{font-family:var(--font-num);color:var(--t1);font-weight:600}
.footer-bottom{
  margin-top:54px;padding:22px 0;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
}
.footer-bottom p{font-size:13px;color:var(--t3)}
.footer-links{display:flex;flex-wrap:wrap;gap:16px}
.footer-links a{font-size:13px;color:var(--t3)}
.footer-links a:hover{color:var(--secondary)}

/* 返回顶部 */
.to-top{
  position:fixed;right:24px;bottom:28px;width:46px;height:46px;border-radius:12px;
  background:var(--primary);border:1px solid var(--primary-2);color:#fff;
  display:flex;align-items:center;justify-content:center;z-index:80;
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:all var(--ease);box-shadow:0 12px 26px rgba(75,34,196,.45);
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--primary-2)}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .section{padding:64px 0}
  .stat-strip{grid-template-columns:1fr;gap:22px}
  .announce-layout{grid-template-columns:1fr}
  .side-col{position:static}
  .steps{grid-template-columns:repeat(2,1fr)}
  .notice-grid{grid-template-columns:1fr}
  .cta-wrap{grid-template-columns:1fr;padding:34px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .feature-announce{grid-template-columns:1fr}
  .feature-announce img{min-height:200px}
  .feature-announce .fa-body{padding:0 24px 24px}
}
@media (max-width:768px){
  .search-box{display:none}
  .header-actions .link-quiet{display:none}
  .nav-toggle{display:block}
  .header-nav{
    position:fixed;left:0;right:0;top:66px;bottom:0;
    background:var(--bg-1);border-top:1px solid var(--line);
    transform:translateX(100%);transition:transform var(--ease);
    overflow-y:auto;padding-bottom:90px;
  }
  .header-nav.open{transform:translateX(0)}
  .nav-inner{flex-direction:column;align-items:stretch;height:auto;gap:6px;padding-top:14px;padding-bottom:20px}
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-list a{padding:14px 0;border-bottom:1px solid var(--line);font-size:16px}
  .nav-list a::after{display:none}
  .nav-list a.active{color:var(--secondary)}
  .hot-words{padding-top:16px;flex-wrap:wrap}
  .header-nav .nav-inner::after{content:"";}
  .page-hero .container{padding-top:44px;padding-bottom:44px}
  .stat-grid{grid-template-columns:1fr 1fr}
  .stat-item{padding-left:0;border-left:0;border-top:1px solid var(--line);padding-top:14px}
  .stat-item:nth-child(-n+2){border-top:0;padding-top:0}
  .steps{grid-template-columns:1fr}
  .panel{padding:26px 22px}
  .timeline{padding-left:24px}
  .timeline::before{left:4px}
  .tl-item::before{left:-25px;top:24px;width:10px;height:10px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .to-top{right:16px;bottom:18px}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .logo-text em{display:none}
  .hero-actions .btn{width:100%}
  .cta-wrap{padding:26px 20px}
  .form-card{padding:22px 18px}
  .stat-grid{grid-template-columns:1fr}
  .stat-item{border-top:1px solid var(--line);padding-top:14px}
  .stat-item:first-child{border-top:0;padding-top:0}
  .section-head{margin-bottom:26px}
}