/* roulang page: index */
:root{
  --bg-0:#0B0910;
  --bg-1:#14111D;
  --bg-2:#1C1828;
  --brand:#A8FF3E;
  --brand-ink:#0B0910;
  --accent:#7B4DFF;
  --accent-2:#FF8A3D;
  --text-1:#F3F1F8;
  --text-2:#ABA5BE;
  --text-3:#746E86;
  --line-soft:rgba(255,255,255,0.07);
  --line-neon:rgba(168,255,62,0.22);
  --ok:#59D98A;
  --warn:#FF8A3D;
  --r-card:16px;
  --r-big:20px;
  --r-btn:10px;
  --r-badge:6px;
  --shadow-card:0 18px 40px -24px rgba(0,0,0,0.9);
  --ease:160ms ease;
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.9;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,p,figure,figcaption,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:inherit;text-decoration:none;transition:color var(--ease),background var(--ease),border-color var(--ease);}
img{display:block;max-width:100%;object-fit:cover;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input{font:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
::selection{background:rgba(168,255,62,.28);color:var(--text-1);}
.num,.digit{font-family:"Sora",system-ui,sans-serif;font-variant-numeric:tabular-nums;}

/* 容器 */
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;}

/* 顶部导航 */
.site-head{
  position:sticky;top:0;z-index:1030;
  height:68px;
  background:transparent;
}
.site-head::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:rgba(11,9,16,0.86);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  opacity:0;
  transition:opacity var(--ease);
}
.site-head.is-stuck::before{opacity:1;}
.site-head::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,var(--brand),rgba(168,255,62,0) 62%);
  opacity:0;
  transition:opacity var(--ease);
}
.site-head.is-stuck::after{opacity:1;}
.head-inner{height:100%;display:flex;align-items:center;gap:24px;}
.logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--text-1);white-space:nowrap;}
.logo svg{flex:none;}
.logo:hover{color:var(--brand);}
.nav-main{margin-left:auto;}
.nav-list{display:flex;align-items:center;gap:32px;}
.nav-list a{position:relative;display:inline-block;font-size:16px;color:var(--text-2);padding:6px 0;}
.nav-list a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:100%;
  background:var(--brand);transform:scaleX(0);transform-origin:left center;
  transition:transform var(--ease);
}
.nav-list a:hover{color:var(--text-1);}
.nav-list a:hover::after{transform:scaleX(1);}
.nav-list a.is-active{color:var(--brand);}
.nav-list a.is-active::after{transform:scaleX(1);box-shadow:0 0 14px rgba(168,255,62,0.55);}
.head-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{display:none;position:relative;width:40px;height:40px;border-radius:var(--r-btn);}
.nav-toggle span{
  position:absolute;left:9px;right:9px;height:2px;border-radius:2px;
  background:var(--text-1);transition:transform var(--ease),opacity var(--ease);
}
.nav-toggle span:nth-child(1){top:13px;}
.nav-toggle span:nth-child(2){top:19px;}
.nav-toggle span:nth-child(3){top:25px;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;white-space:nowrap;cursor:pointer;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
}
.btn-solid{background:var(--brand);color:var(--brand-ink);border:1px solid var(--brand);}
.btn-solid:hover{transform:translateY(-1px);box-shadow:0 0 24px rgba(168,255,62,0.45);color:var(--brand-ink);}
.btn-ghost{background:transparent;color:var(--text-1);border:1px solid var(--line-neon);}
.btn-ghost:hover{background:rgba(168,255,62,0.08);transform:translateY(-1px);color:var(--text-1);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}

/* 首屏 */
.hero{position:relative;overflow:hidden;padding:96px 0;}
.hero::before{
  content:"";position:absolute;top:-220px;right:-180px;width:760px;height:760px;
  background:radial-gradient(circle,rgba(123,77,255,0.18),rgba(123,77,255,0) 66%);
  pointer-events:none;
}
.hero::after{
  content:"";position:absolute;bottom:-260px;left:-220px;width:680px;height:680px;
  background:radial-gradient(circle,rgba(168,255,62,0.08),rgba(168,255,62,0) 66%);
  pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;color:var(--text-3);
  border:1px solid var(--line-soft);border-radius:999px;padding:5px 14px;
  background:rgba(28,24,40,0.6);
}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--brand);display:inline-block;}
.hero h1{font-size:56px;line-height:1.25;font-weight:700;margin-top:22px;letter-spacing:0;}
.hero h1 .hl{color:var(--brand);}
.hero-sub{margin-top:20px;font-size:16px;line-height:1.8;color:var(--text-2);max-width:34em;}
.hero-btns{display:flex;gap:16px;margin-top:32px;flex-wrap:wrap;}
.hero-tags{display:flex;gap:24px;margin-top:24px;flex-wrap:wrap;}
.hero-tags span{display:inline-flex;align-items:center;gap:8px;font-size:12px;color:var(--text-3);}
.hero-tags span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);}
.hero-visual{position:relative;}
.hero-figure{
  position:relative;aspect-ratio:16/11;border-radius:var(--r-big);overflow:hidden;
  border:1px solid var(--line-soft);background:var(--bg-2);
  box-shadow:var(--shadow-card);
}
.hero-figure img{width:100%;height:100%;object-fit:cover;}
.hero-stat{
  position:absolute;right:-24px;bottom:-24px;
  display:flex;align-items:baseline;gap:10px;
  background:var(--bg-2);border:1px solid var(--line-neon);border-radius:14px;
  padding:14px 20px;box-shadow:0 0 24px rgba(168,255,62,0.2);
}
.hero-stat b{font-family:"Sora",system-ui,sans-serif;font-size:26px;color:var(--brand);line-height:1;font-variant-numeric:tabular-nums;}
.hero-stat span{font-size:12px;color:var(--text-3);}

/* 锚点子导航 */
.anchor-nav{position:sticky;top:68px;z-index:1020;background:var(--bg-0);padding:10px 0 18px;}
.anchor-scroller{
  display:flex;gap:6px;padding:6px;width:100%;
  background:var(--bg-1);border:1px solid var(--line-soft);border-radius:999px;
  overflow-x:auto;scrollbar-width:none;
}
.anchor-scroller::-webkit-scrollbar{display:none;}
.anchor-scroller a{
  flex:none;font-size:14px;color:var(--text-2);padding:8px 18px;border-radius:999px;
  transition:background var(--ease),color var(--ease);
}
.anchor-scroller a:hover{color:var(--text-1);background:rgba(255,255,255,0.04);}
.anchor-scroller a.is-on{background:var(--brand);color:var(--brand-ink);font-weight:600;}

/* 分区 */
.section{padding:96px 0;scroll-margin-top:140px;}
.section + .section{border-top:1px solid var(--line-soft);}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:48px;flex-wrap:wrap;}
.sec-kicker{display:inline-block;font-size:13px;color:var(--brand);margin-bottom:10px;}
.sec-head h2{font-size:36px;line-height:1.32;font-weight:700;}
.sec-desc{margin-top:14px;font-size:15px;line-height:1.9;color:var(--text-2);max-width:34em;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--brand);
  border-bottom:1px solid transparent;padding-bottom:2px;
}
.text-link .arw{transition:transform var(--ease);font-family:"Sora",system-ui,sans-serif;}
.text-link:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:2px;}
.text-link:hover .arw{transform:translateX(4px);}

/* 卡片 */
.card{
  background:var(--bg-1);border:1px solid var(--line-soft);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--shadow-card);
  transition:border-color var(--ease),background var(--ease),transform var(--ease),box-shadow var(--ease);
}
.card:hover{border-color:var(--line-neon);background:var(--bg-2);transform:translateY(-2px);box-shadow:0 0 24px rgba(168,255,62,0.16);}
.card-num{display:block;font-family:"Sora",system-ui,sans-serif;font-size:14px;color:var(--brand);opacity:0.7;font-variant-numeric:tabular-nums;}
.card h3{font-size:18px;line-height:1.4;font-weight:700;margin-top:12px;}
.card p{font-size:14px;line-height:1.75;color:var(--text-2);margin-top:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card .text-link{margin-top:18px;}
.card-figure{aspect-ratio:20/9;border-radius:14px;overflow:hidden;background:var(--bg-2);margin-bottom:22px;border:1px solid var(--line-soft);}
.card-figure img{width:100%;height:100%;object-fit:cover;}

/* 功能分区非对称布局 */
.feat-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.feat-main{grid-column:span 7;}
.feat-side{grid-column:span 5;display:grid;gap:24px;align-content:start;}

/* 演示区 */
.demo{background:var(--bg-1);}
.devices{display:flex;gap:32px;justify-content:center;align-items:flex-start;}
.device{width:240px;flex:none;}
.device:nth-child(2){transform:translateY(-16px);}
.device-frame{
  aspect-ratio:9/19;border-radius:20px;overflow:hidden;background:var(--bg-2);
  border:1px solid var(--line-soft);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.device-frame img{width:100%;height:100%;object-fit:cover;}
.device:hover .device-frame{transform:translateY(-4px);border-color:var(--line-neon);box-shadow:0 0 24px rgba(168,255,62,0.28);}
.device-cap{margin-top:14px;font-size:12px;color:var(--text-3);text-align:center;line-height:1.7;}

/* 证据区 */
.stats{
  display:grid;grid-template-columns:repeat(3,1fr);
  background:var(--bg-1);border:1px solid var(--line-soft);border-radius:var(--r-card);
  padding:32px 0;
}
.stat{text-align:center;padding:0 24px;border-left:1px solid var(--line-soft);}
.stat:first-child{border-left:0;}
.stat b{display:block;font-family:"Sora",system-ui,sans-serif;font-size:40px;line-height:1.2;color:var(--brand);font-variant-numeric:tabular-nums;}
.stat span{display:block;margin-top:6px;font-size:12px;color:var(--text-3);}
.quotes{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:48px;}
.quote{
  position:relative;background:var(--bg-1);border:1px solid var(--line-soft);
  border-radius:var(--r-card);padding:34px 28px 24px;
}
.quote::before{
  content:"“";position:absolute;top:6px;left:20px;
  font-family:Georgia,serif;font-size:56px;line-height:1;color:var(--accent);opacity:0.25;
}
.quote p{font-size:15px;line-height:1.9;color:var(--text-1);}
.quote-by{display:flex;align-items:center;gap:12px;margin-top:20px;font-size:12px;color:var(--text-3);}
.avatar{
  width:40px;height:40px;border-radius:50%;flex:none;
  background:linear-gradient(135deg,var(--accent),rgba(168,255,62,0.85));
  display:flex;align-items:center;justify-content:center;
  font-family:"Sora",system-ui,sans-serif;font-size:13px;font-weight:700;color:var(--bg-0);
}

/* 最新信息 */
.news-list{border-top:1px solid var(--line-soft);}
.news-row{
  display:grid;grid-template-columns:9fr 3fr;gap:24px;align-items:center;
  padding:24px 16px 24px 20px;border-bottom:1px solid var(--line-soft);
  transition:background var(--ease),box-shadow var(--ease);
}
.news-row:hover{background:var(--bg-1);box-shadow:inset 3px 0 0 0 var(--brand);}
.news-hit{display:block;}
.badge{
  display:inline-block;font-size:12px;line-height:1.4;padding:4px 10px;
  border-radius:var(--r-badge);border:1px solid transparent;
}
.badge-neon{color:var(--brand);border-color:rgba(168,255,62,0.45);background:transparent;}
.badge-purple{color:#B79CFF;border-color:rgba(123,77,255,0.5);background:transparent;}
.news-row h3{
  font-size:18px;line-height:1.4;font-weight:700;margin-top:12px;color:var(--text-1);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  transition:color var(--ease);
}
.news-row:hover h3{color:var(--brand);}
.news-row p{
  margin-top:8px;font-size:14px;line-height:1.75;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{font-size:14px;color:var(--text-3);text-align:right;font-variant-numeric:tabular-nums;font-family:"Sora",system-ui,sans-serif;}
.empty-state{
  display:flex;flex-direction:column;align-items:center;gap:16px;
  padding:64px 24px;text-align:center;
}
.empty-state p{font-size:14px;color:var(--text-3);}

/* 服务方案 */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start;}
.plan{
  position:relative;overflow:hidden;
  background:var(--bg-1);border:1px solid var(--line-soft);border-radius:var(--r-big);
  padding:32px;
}
.plan-reco{
  border-color:var(--line-neon);
  box-shadow:0 0 40px rgba(168,255,62,0.12);
  transform:translateY(-12px);
  padding-top:48px;
}
.plan-reco::before{
  content:"";position:absolute;top:0;left:0;right:0;height:24px;
  background:linear-gradient(180deg,rgba(168,255,62,0.55),rgba(168,255,62,0));
}
.plan-tag{
  position:absolute;top:14px;right:20px;font-size:12px;color:var(--brand-ink);
  background:var(--brand);border-radius:var(--r-badge);padding:3px 10px;font-weight:600;
}
.plan-name{font-size:14px;color:var(--text-2);}
.plan-price{margin-top:12px;font-family:"Sora",system-ui,sans-serif;font-size:36px;line-height:1.2;color:var(--text-1);font-variant-numeric:tabular-nums;}
.plan-price em{font-style:normal;font-size:12px;color:var(--text-3);margin-left:6px;font-family:system-ui,sans-serif;}
.plan ul{margin-top:24px;display:grid;gap:10px;}
.plan li{position:relative;padding-left:22px;font-size:14px;line-height:1.9;color:var(--text-2);}
.plan li::before{
  content:"";position:absolute;left:0;top:11px;width:12px;height:7px;
  border-left:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:rotate(-45deg);
}
.plan .btn{width:100%;margin-top:26px;}
.plan-note{margin-top:20px;font-size:12px;color:var(--text-3);}

/* FAQ */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start;}
.faq-item{
  background:var(--bg-1);border:1px solid var(--line-soft);border-radius:12px;
  padding:20px 24px;transition:border-color var(--ease),background var(--ease);
}
.faq-item:hover{border-color:rgba(168,255,62,0.16);}
.faq-item.is-open{border-color:var(--line-neon);background:var(--bg-2);}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;text-align:left;font-size:16px;font-weight:500;line-height:1.6;color:var(--text-1);
}
.faq-ico{position:relative;width:12px;height:12px;flex:none;}
.faq-ico::before,.faq-ico::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
  transition:transform var(--ease),opacity var(--ease);
}
.faq-ico::before{left:0;top:5px;width:12px;height:2px;}
.faq-ico::after{left:5px;top:0;width:2px;height:12px;}
.faq-item.is-open .faq-ico::after{transform:rotate(90deg);opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height 220ms ease;}
.faq-item.is-open .faq-a{max-height:340px;}
.faq-a-inner{
  margin-top:12px;padding-top:12px;border-top:1px solid var(--line-soft);
  font-size:15px;line-height:1.9;color:var(--text-2);
}

/* 终末 CTA */
.final-cta{
  position:relative;overflow:hidden;text-align:center;
  padding:96px 0;border-top:1px solid var(--line-soft);
  background:
    radial-gradient(ellipse at 50% 0%,rgba(123,77,255,0.16),rgba(123,77,255,0) 62%),
    var(--bg-0);
}
.final-cta h2{font-size:36px;line-height:1.32;font-weight:700;}
.final-cta p{
  margin:20px auto 0;max-width:34em;font-size:16px;line-height:1.9;color:var(--text-2);
}
.final-cta .hero-btns{justify-content:center;margin-top:36px;}

/* 页脚 */
.site-foot{background:var(--bg-0);border-top:1px solid var(--line-soft);padding:72px 0 32px;}
.foot-sub{
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  padding:24px;border:1px solid var(--line-soft);border-radius:var(--r-card);
  background:var(--bg-1);margin-bottom:56px;
}
.foot-sub p{font-size:15px;line-height:1.8;color:var(--text-2);}
.sub-form{display:flex;gap:12px;flex:0 0 auto;}
.sub-form input{
  width:270px;height:48px;padding:0 16px;border-radius:var(--r-btn);
  background:var(--bg-2);border:1px solid var(--line-soft);color:var(--text-1);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.sub-form input::placeholder{color:var(--text-3);}
.sub-form input:focus{
  outline:none;border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(168,255,62,0.16);
}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;}
.foot-brand .logo{margin-bottom:16px;}
.foot-brand p{font-size:14px;line-height:1.9;color:var(--text-2);max-width:26em;}
.foot-col h4{font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:16px;}
.foot-col ul{display:grid;gap:12px;}
.foot-col a{font-size:14px;color:var(--text-2);}
.foot-col a:hover{color:var(--brand);}
.foot-info{display:grid;gap:12px;font-size:14px;color:var(--text-2);}
.foot-info span{color:var(--text-3);}
.foot-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:48px;padding-top:24px;border-top:1px solid var(--line-soft);
  font-size:12px;color:var(--text-3);
}

/* 浮动 CTA */
.float-cta{
  position:fixed;right:32px;bottom:32px;z-index:1040;
  display:inline-flex;align-items:center;justify-content:center;
  height:52px;padding:0 24px;border-radius:999px;
  background:var(--brand);color:var(--brand-ink);
  font-size:15px;font-weight:600;
  box-shadow:0 12px 32px -12px rgba(168,255,62,0.6);
  opacity:0;transform:translateY(12px);pointer-events:none;
  transition:opacity 200ms ease,transform 200ms ease,box-shadow var(--ease);
}
.float-cta.is-in{opacity:1;transform:translateY(0);pointer-events:auto;}
.float-cta.is-in:hover{transform:translateY(-2px);box-shadow:0 0 32px rgba(168,255,62,0.55);}

/* 响应式 */
@media (max-width:1199px){
  .hero h1{font-size:48px;}
  .devices{gap:24px;}
  .device{width:216px;}
}
@media (max-width:991px){
  .nav-toggle{display:block;}
  .nav-main{
    position:fixed;top:60px;right:0;bottom:0;
    width:100%;max-width:420px;
    background:var(--bg-1);
    border-left:1px solid var(--line-soft);
    padding:24px;
    overflow-y:auto;
    z-index:1029;
    margin-left:0;
    transform:translateX(100%);
    transition:transform 220ms ease;
  }
  .nav-main.is-open{transform:translateX(0);}
  .nav-list{flex-direction:column;align-items:stretch;gap:0;}
  .nav-list li + li{border-top:1px solid var(--line-soft);}
  .nav-list a{display:flex;align-items:center;height:56px;padding:0 10px;font-size:16px;}
  .nav-list a::after{display:none;}
  .nav-list a.is-active{color:var(--brand);box-shadow:inset -3px 0 0 0 var(--brand);}
  .head-cta{display:none;}
  .hero{padding:72px 0;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero-visual{order:-1;}
  .hero h1{font-size:42px;}
  .feat-main,.feat-side{grid-column:span 12;}
  .feat-side{grid-template-columns:1fr;}
  .plans{grid-template-columns:1fr;max-width:540px;margin:0 auto;}
  .plan-reco{transform:none;}
  .quotes{grid-template-columns:1fr;}
  .faq-grid{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr 1fr;}
  .foot-brand{grid-column:span 2;}
  .sub-form{width:100%;}
  .sub-form input{flex:1;width:auto;}
}
@media (max-width:768px){
  .site-head{height:60px;}
  .anchor-nav{top:60px;padding:8px 0 14px;}
  .wrap{padding:0 18px;}
  .section{padding:56px 0;}
  .hero{padding:48px 0 56px;}
  .hero h1{font-size:34px;}
  .hero-sub{font-size:15px;}
  .hero-stat{right:0;bottom:-16px;padding:12px 16px;}
  .hero-stat b{font-size:22px;}
  .sec-head{margin-bottom:32px;}
  .sec-head h2{font-size:26px;}
  .final-cta{padding:56px 0;}
  .final-cta h2{font-size:26px;}
  .card{padding:20px;}
  .devices{
    display:flex;justify-content:flex-start;gap:16px;
    overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:16px;
    scrollbar-width:none;
  }
  .devices::-webkit-scrollbar{display:none;}
  .device{width:200px;scroll-snap-align:start;}
  .device:nth-child(2){transform:none;}
  .stats{grid-template-columns:1fr;padding:0;}
  .stat{border-left:0;border-top:1px solid var(--line-soft);padding:20px 24px;}
  .stat:first-child{border-top:0;}
  .news-row{grid-template-columns:1fr;gap:12px;padding:22px 14px 22px 18px;}
  .news-meta{text-align:left;}
  .news-row h3{white-space:normal;}
  .quotes{margin-top:32px;}
  .foot-grid{grid-template-columns:1fr;gap:28px;}
  .foot-brand{grid-column:span 1;}
  .sub-form{flex-direction:column;}
  .sub-form .btn{width:100%;}
  .float-cta{
    left:0;right:0;bottom:0;height:56px;border-radius:0;
    padding:0 18px;border-top:1px solid var(--line-neon);
    transform:translateY(100%);
    box-shadow:0 -8px 24px -12px rgba(168,255,62,0.5);
  }
  .float-cta.is-in{transform:translateY(0);}
  .float-cta.is-in:hover{transform:translateY(0);}
  body{padding-bottom:calc(56px + env(safe-area-inset-bottom,0px));}
  .site-foot{padding-bottom:48px;}
}
@media (max-width:520px){
  .hero h1{font-size:30px;}
  .hero-btns{flex-direction:column;align-items:stretch;}
  .hero-btns .btn{width:100%;}
  .logo span{font-size:16px;}
  .hero-tags{gap:16px;}
  .plan{padding:24px;}
  .plan-reco{padding-top:44px;}
}
@media (max-width:420px){
  .hero h1{font-size:28px;}
  .sec-head h2{font-size:23px;}
  .stat b{font-size:32px;}
}

/* roulang page: category1 */
:root{
  --bg-0:#0B0910;
  --bg-1:#14111D;
  --bg-2:#1C1828;
  --brand:#A8FF3E;
  --brand-ink:#0B0910;
  --accent:#7B4DFF;
  --accent-2:#FF8A3D;
  --text-1:#F3F1F8;
  --text-2:#ABA5BE;
  --text-3:#746E86;
  --line-soft:rgba(255,255,255,0.07);
  --line-neon:rgba(168,255,62,0.22);
  --ok:#59D98A;
  --r-card:16px;
  --r-lg:20px;
  --r-img:14px;
  --r-btn:10px;
  --r-badge:6px;
  --shadow-card:0 18px 40px -24px rgba(0,0,0,0.9);
  --glow:0 0 24px rgba(168,255,62,0.35);
  --font-cn:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --font-num:"Sora","Inter",system-ui,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  padding-bottom:0;
}
h1,h2,h3,h4,h5,h6,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:var(--brand);text-decoration:none;transition:color 160ms ease,border-color 160ms ease,background-color 160ms ease;}
a:hover{color:var(--brand);}
img{max-width:100%;display:block;object-fit:cover;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
::selection{background:rgba(168,255,62,0.28);color:var(--text-1);}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;letter-spacing:0;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform 160ms ease,box-shadow 160ms ease,background-color 160ms ease,color 160ms ease,border-color 160ms ease;
}
.btn-solid{background:var(--brand);color:var(--brand-ink);border-color:var(--brand);}
.btn-solid:hover,.btn-solid:focus-visible{background:#b8ff61;color:var(--brand-ink);transform:translateY(-1px);box-shadow:var(--glow);}
.btn-solid:active{transform:translateY(0);box-shadow:0 0 0 1px var(--line-neon);}
.btn-ghost{background:transparent;border-color:var(--line-neon);color:var(--text-1);}
.btn-ghost:hover,.btn-ghost:focus-visible{background:rgba(168,255,62,0.08);border-color:var(--brand);color:var(--text-1);transform:translateY(-1px);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.btn-block{width:100%;}

/* ---------- 徽章与标签 ---------- */
.badge-neon,.badge-violet{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:500;line-height:1;
  padding:6px 10px;border-radius:var(--r-badge);border:1px solid;
}
.badge-neon{color:var(--brand);border-color:var(--line-neon);background:rgba(168,255,62,0.06);}
.badge-violet{color:#C4AEFF;border-color:rgba(123,77,255,0.45);background:rgba(123,77,255,0.12);}
.tag-dot{display:inline-flex;align-items:center;font-size:12px;color:var(--text-3);}
.tag-dot::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);margin-right:8px;flex:none;}

/* ---------- 顶部导航 ---------- */
.site-head{
  position:sticky;top:0;z-index:1030;
  height:68px;background:transparent;
  transition:background-color 200ms ease,backdrop-filter 200ms ease;
}
.site-head::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,var(--brand),rgba(168,255,62,0));
  opacity:0;transition:opacity 200ms ease;
}
.site-head.is-scrolled{background:rgba(11,9,16,0.86);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);}
.site-head.is-scrolled::after{opacity:1;}
.head-inner{height:68px;display:flex;align-items:center;gap:32px;}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--text-1);line-height:1;}
.logo:hover{color:var(--text-1);}
.logo svg{flex:none;}
.nav-main{margin-left:auto;}
.nav-list{display:flex;align-items:center;gap:32px;}
.nav-list a{
  position:relative;display:inline-block;padding:6px 0;
  font-size:16px;color:var(--text-2);line-height:1.4;
  transition:color 160ms ease;
}
.nav-list a::after{
  content:"";position:absolute;left:0;bottom:-2px;height:2px;width:0;
  background:var(--brand);transition:width 160ms ease;
}
.nav-list a:hover{color:var(--text-1);}
.nav-list a:hover::after{width:100%;}
.nav-list a.is-active{color:var(--brand);}
.nav-list a.is-active::after{width:100%;box-shadow:0 0 14px rgba(168,255,62,0.55);}
.head-actions{display:flex;align-items:center;gap:14px;}
.head-cta{box-shadow:0 8px 22px -14px rgba(168,255,62,0.8);}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--line-soft);border-radius:10px;
  background:var(--bg-2);padding:0;position:relative;cursor:pointer;
}
.nav-toggle span{
  position:absolute;left:11px;width:18px;height:2px;background:var(--text-1);border-radius:2px;
  transition:transform 160ms ease,opacity 160ms ease,top 160ms ease;
}
.nav-toggle span:nth-child(1){top:13px;}
.nav-toggle span:nth-child(2){top:19px;}
.nav-toggle span:nth-child(3){top:25px;}
.nav-toggle.is-open span:nth-child(1){top:19px;transform:rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){top:19px;transform:rotate(-45deg);}

/* ---------- 面包屑与页头 ---------- */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--text-3);}
.crumbs a{color:var(--text-3);}
.crumbs a:hover{color:var(--brand);}
.crumbs .sep{color:var(--text-3);opacity:.6;}
.crumbs .cur{color:var(--text-2);}

.page-head{
  position:relative;overflow:hidden;
  padding:56px 0 72px;
  background:var(--bg-0);
  border-bottom:1px solid var(--line-soft);
}
.page-head::before{
  content:"";position:absolute;top:-180px;right:-120px;width:620px;height:620px;
  background:radial-gradient(circle,rgba(123,77,255,0.18),transparent 68%);
  pointer-events:none;
}
.page-head::after{
  content:"";position:absolute;bottom:-200px;left:-140px;width:520px;height:520px;
  background:radial-gradient(circle,rgba(168,255,62,0.08),transparent 70%);
  pointer-events:none;
}
.head-grid{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1.15fr 0.85fr;gap:56px;align-items:center;
  margin-top:28px;
}
.page-head h1{
  font-size:56px;font-weight:700;line-height:1.25;letter-spacing:0;
  margin-top:18px;
}
.page-head h1 em{font-style:normal;color:var(--brand);}
.head-lead{font-size:16px;line-height:1.8;color:var(--text-2);max-width:34em;margin-top:20px;}
.head-tags{display:flex;flex-wrap:wrap;align-items:center;gap:24px;margin-top:24px;}
.head-actions-row{display:flex;flex-wrap:wrap;gap:16px;margin-top:32px;}
.head-figure{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line-soft);background:var(--bg-2);
  aspect-ratio:16/11;box-shadow:var(--shadow-card);
}
.head-figure img{width:100%;height:100%;}
.head-figure .fig-note{
  position:absolute;left:16px;bottom:16px;
  background:rgba(11,9,16,0.78);border:1px solid var(--line-soft);
  border-radius:10px;padding:8px 14px;font-size:12px;color:var(--text-2);
  backdrop-filter:blur(6px);
}

/* ---------- 通用区块 ---------- */
.section{padding:96px 0;}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:48px;}
.sec-head h2{font-size:36px;font-weight:700;line-height:1.32;}
.sec-head .sec-desc{font-size:15px;color:var(--text-2);max-width:34em;margin-top:12px;line-height:1.8;}
.sec-head .sec-more{font-size:14px;color:var(--brand);display:inline-flex;align-items:center;gap:6px;}
.sec-head .sec-more span{transition:transform 160ms ease;}
.sec-head .sec-more:hover span{transform:translateX(4px);}
.sec-title-line{display:inline-flex;align-items:center;gap:12px;}
.sec-title-line::before{content:"";width:34px;height:2px;background:var(--accent);border-radius:2px;}

/* ---------- 功能卡网格 ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.feature-card{
  position:relative;
  background:var(--bg-1);border:1px solid var(--line-soft);border-radius:var(--r-card);
  padding:0;overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform 160ms ease,border-color 160ms ease,box-shadow 160ms ease,background-color 160ms ease;
}
.feature-card:hover{
  transform:translateY(-2px);
  border-color:var(--line-neon);
  background:var(--bg-2);
  box-shadow:var(--shadow-card),0 0 24px rgba(168,255,62,0.16);
}
.feature-thumb{position:relative;aspect-ratio:16/9;background:var(--bg-2);overflow:hidden;}
.feature-thumb img{width:100%;height:100%;transition:transform 200ms ease;}
.feature-card:hover .feature-thumb img{transform:scale(1.02);}
.feature-num{
  position:absolute;left:18px;top:14px;
  font-family:var(--font-num);font-size:14px;font-weight:600;letter-spacing:.02em;
  color:var(--brand);opacity:.85;
  background:rgba(11,9,16,0.7);border:1px solid var(--line-neon);
  border-radius:8px;padding:2px 10px;line-height:1.6;
}
.feature-body{padding:26px 28px 28px;}
.feature-body h3{font-size:18px;font-weight:700;line-height:1.4;}
.feature-body p{
  font-size:14px;line-height:1.75;color:var(--text-2);margin-top:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.feature-body .txt-link{
  display:inline-flex;align-items:center;gap:6px;margin-top:18px;
  font-size:14px;color:var(--brand);
  text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;
}
.feature-body .txt-link:hover{text-decoration-thickness:2px;}
.feature-body .txt-link span{transition:transform 160ms ease;}
.feature-body .txt-link:hover span{transform:translateX(4px);}

/* ---------- 数据带 ---------- */
.stats-band{
  display:grid;grid-template-columns:repeat(3,1fr);
  border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);
}
.stat-item{padding:36px 24px;text-align:center;border-left:1px solid var(--line-soft);}
.stat-item:first-child{border-left:none;}
.stat-num{
  font-family:var(--font-num);font-size:40px;font-weight:700;line-height:1.2;
  color:var(--brand);font-variant-numeric:tabular-nums;
}
.stat-num small{font-size:14px;font-weight:500;color:var(--text-3);margin-left:6px;}
.stat-cap{font-size:12px;color:var(--text-3);margin-top:6px;letter-spacing:.02em;}

/* ---------- 图文分栏 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.split-figure{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line-soft);
  background:var(--bg-2);aspect-ratio:4/3;box-shadow:var(--shadow-card);
}
.split-figure img{width:100%;height:100%;}
.split h2{font-size:36px;font-weight:700;line-height:1.32;}
.split .split-lead{font-size:15px;color:var(--text-2);line-height:1.9;margin-top:16px;max-width:34em;}
.detail-list{margin-top:28px;display:grid;gap:2px;}
.detail-item{
  display:grid;grid-template-columns:auto 1fr;gap:16px;
  padding:18px 0;border-top:1px solid var(--line-soft);
}
.detail-item:last-child{border-bottom:1px solid var(--line-soft);}
.detail-ico{
  width:34px;height:34px;border-radius:10px;flex:none;
  display:flex;align-items:center;justify-content:center;
  background:rgba(123,77,255,0.16);border:1px solid rgba(123,77,255,0.35);
  color:var(--brand);font-family:var(--font-num);font-size:13px;font-weight:700;
}
.detail-item h3{font-size:16px;font-weight:600;line-height:1.5;}
.detail-item p{font-size:14px;color:var(--text-2);line-height:1.8;margin-top:6px;max-width:34em;}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:start;}
.faq-item{
  background:var(--bg-1);border:1px solid var(--line-soft);border-radius:12px;
  padding:0 20px;transition:border-color 160ms ease,background-color 160ms ease;
}
.faq-item:hover{background:var(--bg-2);}
.faq-item.is-open{border-color:var(--line-neon);background:var(--bg-2);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:0;color:var(--text-1);text-align:left;
  font-size:16px;font-weight:500;line-height:1.6;
  padding:20px 0;cursor:pointer;
}
.faq-ico{position:relative;width:12px;height:12px;flex:none;}
.faq-ico::before,.faq-ico::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
  transition:transform 160ms ease,opacity 160ms ease;
}
.faq-ico::before{left:0;top:5px;width:12px;height:2px;}
.faq-ico::after{left:5px;top:0;width:2px;height:12px;}
.faq-item.is-open .faq-ico::after{transform:rotate(90deg);opacity:0;}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows 200ms ease;}
.faq-item.is-open .faq-a{grid-template-rows:1fr;}
.faq-a-inner{overflow:hidden;}
.faq-a p{
  font-size:15px;line-height:1.9;color:var(--text-2);
  border-top:1px solid var(--line-soft);padding:14px 0 20px;
}

/* ---------- 继续了解 ---------- */
.next-list{display:grid;gap:0;border-top:1px solid var(--line-soft);}
.next-row{
  display:grid;grid-template-columns:auto 1fr auto;gap:20px;align-items:center;
  padding:24px 0;border-bottom:1px solid var(--line-soft);
  color:var(--text-1);transition:background-color 160ms ease,padding 160ms ease;
}
.next-row:hover{background:var(--bg-1);padding-left:16px;color:var(--text-1);}
.next-row .next-idx{font-family:var(--font-num);font-size:13px;color:var(--brand);opacity:.75;}
.next-row h3{font-size:18px;font-weight:600;line-height:1.5;}
.next-row p{font-size:14px;color:var(--text-2);line-height:1.75;margin-top:4px;}
.next-row .next-arrow{color:var(--brand);font-size:16px;transition:transform 160ms ease;}
.next-row:hover .next-arrow{transform:translateX(4px);}

/* ---------- CTA 区 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  padding:72px 0;background:var(--bg-1);
  border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);
  text-align:center;
}
.cta-band::before{
  content:"";position:absolute;top:-140px;left:50%;transform:translateX(-50%);
  width:760px;height:420px;
  background:radial-gradient(ellipse at center,rgba(168,255,62,0.12),transparent 68%);
  pointer-events:none;
}
.cta-band .cta-inner{position:relative;z-index:1;}
.cta-band h2{font-size:36px;font-weight:700;line-height:1.32;}
.cta-band p{font-size:15px;color:var(--text-2);line-height:1.9;max-width:38em;margin:16px auto 0;}
.cta-actions{display:flex;flex-wrap:wrap;gap:16px;justify-content:center;margin-top:32px;}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--bg-0);border-top:1px solid var(--line-soft);padding:72px 0 32px;}
.foot-sub{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  padding-bottom:40px;border-bottom:1px solid var(--line-soft);
}
.foot-sub p{font-size:15px;color:var(--text-2);}
.sub-form{display:flex;gap:12px;flex-wrap:wrap;}
.sub-form input{
  height:48px;min-width:260px;padding:0 16px;border-radius:10px;
  background:var(--bg-2);border:1px solid var(--line-soft);color:var(--text-1);
  font-size:14px;transition:border-color 160ms ease,box-shadow 160ms ease;
}
.sub-form input::placeholder{color:var(--text-3);}
.sub-form input:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(168,255,62,0.16);
}
.foot-grid{display:grid;grid-template-columns:4fr 4fr 2fr 2fr;gap:32px;padding:48px 0;}
.foot-col h4{font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:18px;}
.foot-col ul{display:grid;gap:12px;}
.foot-col ul a{font-size:14px;color:var(--text-2);}
.foot-col ul a:hover{color:var(--brand);}
.foot-brand p{font-size:14px;color:var(--text-2);line-height:1.9;margin-top:16px;max-width:32em;}
.foot-info{display:grid;gap:12px;font-size:14px;color:var(--text-3);}
.foot-info span{color:var(--text-2);}
.foot-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  padding-top:24px;border-top:1px solid var(--line-soft);
  font-size:12px;color:var(--text-3);
}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:32px;bottom:32px;z-index:1040;
  display:inline-flex;align-items:center;justify-content:center;
  height:52px;padding:0 24px;border-radius:999px;
  background:var(--brand);color:var(--brand-ink);
  font-size:15px;font-weight:600;
  box-shadow:0 12px 32px -12px rgba(168,255,62,0.6);
  opacity:0;transform:translateY(12px);pointer-events:none;
  transition:opacity 200ms ease,transform 200ms ease,box-shadow 160ms ease;
}
.float-cta.is-show{opacity:1;transform:translateY(0);pointer-events:auto;}
.float-cta:hover{color:var(--brand-ink);transform:translateY(-2px);box-shadow:0 16px 36px -12px rgba(168,255,62,0.75);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .head-grid{gap:40px;}
  .page-head h1{font-size:48px;}
  .split{gap:40px;}
  .foot-grid{grid-template-columns:2fr 2fr 1fr 1fr;gap:24px;}
}
@media (max-width:991px){
  .site-head{height:60px;}
  .head-inner{height:60px;gap:16px;}
  .nav-toggle{display:block;}
  .nav-main{
    position:fixed;top:60px;right:0;bottom:0;width:min(320px,86vw);
    background:var(--bg-1);border-left:1px solid var(--line-soft);
    padding:24px 20px;margin-left:0;
    transform:translateX(100%);transition:transform 200ms ease;
    overflow-y:auto;
  }
  .nav-main.is-open{transform:translateX(0);}
  .nav-list{flex-direction:column;align-items:stretch;gap:0;}
  .nav-list li{border-bottom:1px solid var(--line-soft);}
  .nav-list a{display:block;height:56px;line-height:56px;padding:0 12px;font-size:16px;}
  .nav-list a::after{display:none;}
  .nav-list a.is-active{
    color:var(--brand);box-shadow:inset -3px 0 0 var(--brand);
  }
  .head-cta{display:none;}
  .page-head{padding:36px 0 56px;}
  .head-grid{grid-template-columns:1fr;gap:32px;margin-top:20px;}
  .page-head h1{font-size:38px;}
  .head-figure{aspect-ratio:16/10;order:-1;}
  .section{padding:64px 0;}
  .sec-head h2,.split h2,.cta-band h2{font-size:28px;}
  .feature-grid{grid-template-columns:1fr;}
  .split{grid-template-columns:1fr;gap:32px;}
  .faq-grid{grid-template-columns:1fr;}
  .stats-band{grid-template-columns:1fr;}
  .stat-item{border-left:none;border-top:1px solid var(--line-soft);}
  .stat-item:first-child{border-top:none;}
  .foot-grid{grid-template-columns:1fr 1fr;}
  .foot-brand{grid-column:1 / -1;}
}
@media (max-width:768px){
  .wrap{padding:0 18px;}
  body{padding-bottom:56px;}
  .page-head h1{font-size:34px;}
  .head-tags{gap:16px;}
  .head-actions-row .btn{flex:1 1 auto;}
  .feature-body{padding:20px;}
  .foot-sub{flex-direction:column;align-items:flex-start;}
  .sub-form{width:100%;}
  .sub-form input{flex:1 1 auto;min-width:0;width:100%;}
  .sub-form .btn{width:100%;}
  .float-cta{
    left:0;right:0;bottom:0;height:56px;border-radius:0;
    padding:0 18px;border-top:1px solid var(--line-neon);
    padding-bottom:env(safe-area-inset-bottom);
  }
  .next-row{grid-template-columns:auto 1fr;gap:14px;}
  .next-row .next-arrow{display:none;}
}
@media (max-width:520px){
  .page-head h1{font-size:30px;}
  .sec-head h2,.split h2,.cta-band h2{font-size:24px;}
  .foot-grid{grid-template-columns:1fr;}
  .head-actions-row{flex-direction:column;align-items:stretch;}
  .head-actions-row .btn{width:100%;}
  .cta-actions .btn{width:100%;}
  .stat-num{font-size:32px;}
}
@media (max-width:420px){
  .page-head h1{font-size:28px;}
  .feature-num{display:none;}
}

/* roulang page: article */
:root{
  --bg-0:#0B0910;
  --bg-1:#14111D;
  --bg-2:#1C1828;
  --brand:#A8FF3E;
  --brand-ink:#0B0910;
  --accent:#7B4DFF;
  --accent-2:#FF8A3D;
  --text-1:#F3F1F8;
  --text-2:#ABA5BE;
  --text-3:#746E86;
  --line-soft:rgba(255,255,255,.07);
  --line-neon:rgba(168,255,62,.22);
  --ok:#59D98A;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:20px;
  --shadow-card:0 18px 40px -24px rgba(0,0,0,.9);
  --shadow-neon:0 0 24px rgba(168,255,62,.35);
  --ease:160ms ease;
  --wrap:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--text-1);
  background:var(--bg-0);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;transition:color var(--ease),background var(--ease),border-color var(--ease);}
a:hover{color:var(--brand);}
h1,h2,h3,h4,h5,p,figure,blockquote{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
::selection{background:rgba(168,255,62,.28);color:var(--text-1);}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px;}
.skip-link{
  position:absolute;left:16px;top:-60px;z-index:1200;
  padding:10px 18px;border-radius:var(--r-sm);
  background:var(--brand);color:var(--brand-ink);font-size:14px;font-weight:600;
  transition:top var(--ease);
}
.skip-link:focus{top:14px;color:var(--brand-ink);}

/* ---------- 顶部导航 ---------- */
.site-head{
  position:sticky;top:0;z-index:1030;
  background:rgba(11,9,16,.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line-soft);
  transition:background var(--ease),border-color var(--ease);
}
.site-head.is-scrolled{background:rgba(11,9,16,.92);border-bottom-color:var(--line-neon);}
.head-inner{display:flex;align-items:center;gap:32px;height:68px;}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--text-1);letter-spacing:0;flex:none;}
.logo:hover{color:var(--text-1);}
.logo svg{flex:none;}
.nav-main{flex:1 1 auto;display:flex;justify-content:center;min-width:0;}
.nav-list{display:flex;align-items:center;gap:32px;}
.nav-list a{position:relative;display:inline-block;padding:6px 0;font-size:16px;color:var(--text-2);}
.nav-list a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--brand);border-radius:2px;transition:width var(--ease);
}
.nav-list a:hover{color:var(--text-1);}
.nav-list a:hover::after{width:100%;}
.nav-list a.is-active{color:var(--brand);text-shadow:0 0 14px rgba(168,255,62,.55);}
.nav-list a.is-active::after{width:100%;}
.head-actions{display:flex;align-items:center;gap:12px;flex:none;}
.nav-toggle{
  display:none;width:44px;height:40px;
  border:1px solid var(--line-soft);border-radius:var(--r-sm);
  background:var(--bg-1);padding:0;
}
.nav-toggle span{display:block;width:20px;height:2px;margin:4px auto;border-radius:2px;background:var(--text-1);transition:transform var(--ease),opacity var(--ease);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-sm);
  border:1px solid transparent;font-size:15px;font-weight:600;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.btn-solid{background:var(--brand);color:var(--brand-ink);box-shadow:0 12px 32px -16px rgba(168,255,62,.7);}
.btn-solid:hover{color:var(--brand-ink);transform:translateY(-1px);box-shadow:0 16px 38px -14px rgba(168,255,62,.85),var(--shadow-neon);}
.btn-solid:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--text-1);border-color:var(--line-neon);}
.btn-ghost:hover{background:rgba(168,255,62,.08);color:var(--text-1);border-color:var(--brand);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}

/* ---------- 面包屑 ---------- */
.crumb-bar{border-bottom:1px solid var(--line-soft);background:var(--bg-0);}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  width:100%;max-width:var(--wrap);margin:0 auto;padding:16px 24px;
  font-size:14px;color:var(--text-3);
}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--brand);}
.crumb-sep{color:var(--text-3);opacity:.7;}
.crumb-cur{color:var(--text-2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:100%;}

/* ---------- 文章头部 ---------- */
.article-head{
  position:relative;overflow:hidden;
  padding:64px 0 48px;
  background:
    linear-gradient(180deg,rgba(20,17,29,.55) 0%,rgba(11,9,16,.95) 100%),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat,
    var(--bg-0);
  border-bottom:1px solid var(--line-soft);
}
.article-head::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(620px 320px at 84% 0%,rgba(123,77,255,.22),transparent 70%),
    radial-gradient(520px 300px at 0% 100%,rgba(168,255,62,.10),transparent 70%);
}
.article-head .wrap{position:relative;max-width:860px;}
.badge-neon{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:6px;
  font-size:12px;font-weight:500;letter-spacing:0;
  color:var(--brand);border:1px solid var(--line-neon);background:rgba(168,255,62,.06);
}
.badge-purple{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:6px;
  font-size:12px;font-weight:500;
  color:#C6B4FF;border:1px solid rgba(123,77,255,.42);background:rgba(123,77,255,.12);
}
.article-title{
  font-size:clamp(28px,4vw,44px);line-height:1.28;font-weight:700;
  letter-spacing:0;margin:20px 0 20px;color:var(--text-1);
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:14px;color:var(--text-3);}
.meta-row time{font-variant-numeric:tabular-nums;}
.meta-dot{width:4px;height:4px;border-radius:50%;background:var(--text-3);display:inline-block;flex:none;}

/* ---------- 正文 ---------- */
.article-main{padding:16px 0 88px;}
.article-body{
  max-width:760px;margin:0 auto;
  font-size:16px;line-height:1.9;color:var(--text-1);
  overflow-wrap:break-word;word-break:break-word;
}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1em;color:var(--text-1);}
.article-body h2{
  font-size:clamp(22px,3vw,26px);line-height:1.32;font-weight:700;
  margin:48px 0 20px;padding-left:14px;border-left:4px solid var(--brand);
  color:var(--text-1);
}
.article-body h3{font-size:20px;line-height:1.4;font-weight:700;margin:32px 0 14px;color:var(--text-1);}
.article-body h4{font-size:17px;line-height:1.5;font-weight:700;margin:24px 0 12px;color:var(--text-1);}
.article-body ul,.article-body ol{margin:0 0 1.1em;padding-left:1.5em;line-height:1.9;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-bottom:.45em;color:var(--text-1);}
.article-body li::marker{color:var(--brand);}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{text-decoration-thickness:2px;}
.article-body strong{color:#FFFFFF;font-weight:700;}
.article-body blockquote{
  margin:24px 0;padding:16px 20px 16px 20px;
  background:var(--bg-1);border-left:3px solid var(--brand);border-radius:14px;
  color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:14px;margin:24px 0;width:100%;background:var(--bg-2);object-fit:cover;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;line-height:1.7;color:var(--text-3);text-align:center;margin-top:10px;}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;}
.article-body th,.article-body td{border-bottom:1px solid var(--line-soft);padding:12px 14px;text-align:left;vertical-align:top;}
.article-body th{color:var(--text-2);font-weight:600;background:var(--bg-1);white-space:nowrap;}
.article-body code{background:var(--bg-2);padding:2px 6px;border-radius:6px;font-size:14px;}
.article-body hr{border:0;border-top:1px solid var(--line-soft);margin:48px 0;}
.article-end{display:flex;flex-wrap:wrap;gap:16px;margin-top:48px;padding-top:32px;border-top:1px solid var(--line-soft);}

/* ---------- 空态 ---------- */
.empty-state{
  max-width:760px;margin:0 auto;padding:56px 28px;text-align:center;
  background:var(--bg-1);border:1px solid var(--line-soft);border-radius:var(--r-md);
  box-shadow:var(--shadow-card);
}
.empty-icon{
  width:56px;height:56px;margin:0 auto 20px;border-radius:16px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(123,77,255,.16);border:1px solid rgba(123,77,255,.4);
  color:var(--accent);
}
.empty-state h2{font-size:22px;font-weight:700;margin-bottom:12px;color:var(--text-1);border:0;padding:0;}
.empty-state p{font-size:15px;color:var(--text-2);margin-bottom:24px;}

/* ---------- 相关推荐 ---------- */
.rel-section{padding:0 0 96px;}
.rel-inner{max-width:860px;margin:0 auto;}
.rel-head{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:16px;}
.rel-head h2{font-size:22px;line-height:1.35;font-weight:700;color:var(--text-1);}
.rel-head .rel-more{font-size:14px;color:var(--text-2);}
.rel-head .rel-more:hover{color:var(--brand);}
.rel-list{border-top:1px solid var(--line-soft);}
.rel-item{
  display:grid;grid-template-columns:1fr auto;gap:24px;align-items:center;
  padding:24px 0 24px 0;border-bottom:1px solid var(--line-soft);
  border-left:3px solid transparent;
  transition:padding-left var(--ease),background var(--ease),border-color var(--ease);
}
.rel-item:hover,.rel-item:focus-visible{
  border-left-color:var(--brand);padding-left:16px;background:var(--bg-1);
}
.rel-item h3{font-size:18px;line-height:1.5;font-weight:600;color:var(--text-1);margin:10px 0 6px;transition:color var(--ease);}
.rel-item:hover h3{color:var(--brand);}
.rel-item p{font-size:14px;line-height:1.75;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rel-time{font-size:14px;color:var(--text-3);font-variant-numeric:tabular-nums;white-space:nowrap;justify-self:end;}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:32px;bottom:32px;z-index:1020;
  display:inline-flex;align-items:center;justify-content:center;
  height:52px;padding:0 24px;border-radius:999px;
  background:var(--brand);color:var(--brand-ink);
  font-size:15px;font-weight:700;
  box-shadow:0 12px 32px -12px rgba(168,255,62,.6);
  opacity:0;transform:translateY(12px);pointer-events:none;
  transition:opacity 200ms ease,transform 200ms ease,box-shadow var(--ease);
}
.float-cta.is-on{opacity:1;transform:translateY(0);pointer-events:auto;}
.float-cta:hover{color:var(--brand-ink);transform:translateY(-2px);box-shadow:0 16px 40px -12px rgba(168,255,62,.85),var(--shadow-neon);}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--bg-0);border-top:1px solid var(--line-soft);padding:72px 0 32px;}
.foot-sub{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
  padding-bottom:40px;margin-bottom:48px;border-bottom:1px solid var(--line-soft);
}
.foot-sub p{font-size:15px;color:var(--text-2);}
.sub-form{display:flex;flex-wrap:wrap;gap:12px;}
.sub-form input{
  height:48px;width:288px;max-width:100%;padding:0 16px;
  background:var(--bg-2);border:1px solid var(--line-soft);border-radius:10px;
  color:var(--text-1);font-size:15px;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.sub-form input::placeholder{color:var(--text-3);}
.sub-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(168,255,62,.16);}
.sub-form .btn{height:48px;}
.foot-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.foot-col{min-width:0;}
.foot-brand{grid-column:span 4;}
.foot-grid > .foot-col:nth-child(2){grid-column:span 4;}
.foot-grid > .foot-col:nth-child(3){grid-column:span 2;}
.foot-grid > .foot-col:nth-child(4){grid-column:span 2;}
.foot-brand p{font-size:14px;line-height:1.8;color:var(--text-3);margin-top:16px;max-width:320px;}
.foot-col h4{font-size:14px;font-weight:700;color:var(--text-1);margin-bottom:16px;}
.foot-col ul li{margin-bottom:12px;}
.foot-col ul a{font-size:14px;color:var(--text-2);}
.foot-col ul a:hover{color:var(--brand);}
.foot-info div{font-size:14px;color:var(--text-3);margin-bottom:10px;line-height:1.7;}
.foot-info span{color:var(--text-2);}
.foot-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  margin-top:48px;padding-top:24px;border-top:1px solid var(--line-soft);
  font-size:12px;color:var(--text-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .head-inner{gap:20px;}
  .nav-list{gap:24px;}
}
@media (max-width:991px){
  .head-inner{height:60px;}
  .nav-toggle{display:block;}
  .head-cta{display:none;}
  .nav-main{
    position:fixed;left:0;right:0;top:60px;
    display:block;
    background:var(--bg-1);
    border-bottom:1px solid var(--line-soft);
    padding:8px 0 16px;
    max-height:calc(100vh - 60px);overflow-y:auto;
    opacity:0;transform:translateY(-12px);pointer-events:none;
    transition:opacity var(--ease),transform var(--ease);
  }
  .nav-main.is-open{opacity:1;transform:translateY(0);pointer-events:auto;}
  .nav-list{flex-direction:column;align-items:stretch;gap:0;}
  .nav-list a{
    display:block;padding:16px 24px;font-size:16px;
    border-left:3px solid transparent;color:var(--text-2);
  }
  .nav-list a::after{display:none;}
  .nav-list a.is-active{border-left-color:var(--brand);background:rgba(168,255,62,.06);text-shadow:none;}
  .article-head{padding:48px 0 36px;}
  .article-main{padding-bottom:64px;}
  .rel-section{padding-bottom:64px;}
}
@media (max-width:768px){
  .wrap{padding:0 18px;}
  .crumb{padding:14px 18px;font-size:13px;}
  .article-title{font-size:clamp(24px,6vw,32px);}
  .article-body{font-size:16px;}
  .article-body h2{margin-top:36px;}
  .rel-item{grid-template-columns:1fr;gap:10px;}
  .rel-time{justify-self:start;order:2;}
  .rel-head h2{font-size:20px;}
  .article-end{flex-direction:column;}
  .article-end .btn{width:100%;}
  .foot-sub{flex-direction:column;align-items:flex-start;}
  .sub-form{width:100%;}
  .sub-form input{width:100%;}
  .sub-form .btn{width:100%;}
  .foot-grid{grid-template-columns:repeat(2,1fr);}
  .foot-brand{grid-column:1 / -1;}
  .foot-grid > .foot-col:nth-child(2){grid-column:span 1;}
  .foot-grid > .foot-col:nth-child(3){grid-column:span 1;}
  .foot-grid > .foot-col:nth-child(4){grid-column:1 / -1;}
  .site-foot{padding:56px 0 28px;}
  .float-cta{
    left:0;right:0;bottom:0;height:56px;border-radius:0;
    padding:0 18px 0 18px;
    padding-bottom:env(safe-area-inset-bottom);
    border-top:1px solid var(--line-neon);
  }
  .float-cta:hover{transform:none;}
  body{padding-bottom:56px;}
}
@media (max-width:420px){
  .article-title{font-size:24px;}
  .badge-neon,.badge-purple{font-size:11px;}
  .meta-row{font-size:13px;gap:8px;}
}

/* roulang page: category3 */
:root{
  --bg-0:#0B0910;
  --bg-1:#14111D;
  --bg-2:#1C1828;
  --brand:#A8FF3E;
  --brand-ink:#0B0910;
  --accent:#7B4DFF;
  --accent-2:#FF8A3D;
  --text-1:#F3F1F8;
  --text-2:#ABA5BE;
  --text-3:#746E86;
  --line-soft:rgba(255,255,255,.07);
  --line-neon:rgba(168,255,62,.22);
  --ok:#59D98A;
  --r-card:16px;
  --r-lg:20px;
  --r-btn:10px;
  --r-badge:6px;
  --shadow-card:0 18px 40px -24px rgba(0,0,0,.9);
  --maxw:1200px;
  --t:160ms ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--text-1);
  background:var(--bg-0);
  background-image:
    radial-gradient(900px 520px at 88% -6%,rgba(123,77,255,.18),transparent 62%),
    radial-gradient(760px 460px at 4% 8%,rgba(168,255,62,.07),transparent 60%);
  background-repeat:no-repeat;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color var(--t),background-color var(--t),border-color var(--t),box-shadow var(--t),transform var(--t),opacity var(--t)}
p{margin:0 0 1em}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.32;letter-spacing:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
input{font:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
::selection{background:rgba(168,255,62,.28);color:#fff}
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.sec{padding:96px 0}
.sec-tight{padding:64px 0}
.sec-line{border-top:1px solid var(--line-soft)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:500;letter-spacing:.02em;color:var(--brand);padding:5px 11px;border:1px solid var(--line-neon);border-radius:var(--r-badge);background:rgba(168,255,62,.06)}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px rgba(168,255,62,.8)}
.eyebrow.violet{color:#C7B4FF;border-color:rgba(123,77,255,.4);background:rgba(123,77,255,.12)}
.eyebrow.violet::before{background:var(--accent);box-shadow:0 0 10px rgba(123,77,255,.8)}
.sec-head{max-width:760px;margin-bottom:48px}
.sec-head h2{font-size:36px;line-height:1.32;margin:16px 0 12px}
.sec-head p{color:var(--text-2);font-size:16px;line-height:1.9;max-width:34em;margin:0}
.num{font-variant-numeric:tabular-nums}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--r-btn);font-size:15px;font-weight:500;border:1px solid transparent;cursor:pointer;transition:transform var(--t),box-shadow var(--t),background-color var(--t),border-color var(--t),color var(--t)}
.btn-solid{background:var(--brand);color:var(--brand-ink);border-color:var(--brand);box-shadow:0 12px 30px -18px rgba(168,255,62,.9)}
.btn-solid:hover{transform:translateY(-1px);box-shadow:0 0 24px rgba(168,255,62,.35),0 12px 30px -16px rgba(168,255,62,.9);color:var(--brand-ink)}
.btn-ghost{background:transparent;color:var(--text-1);border-color:var(--line-neon)}
.btn-ghost:hover{background:rgba(168,255,62,.08);color:var(--brand);transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:500;color:var(--brand);border-bottom:1px solid rgba(168,255,62,.4);padding-bottom:2px}
.link-more span{transition:transform var(--t)}
.link-more:hover{border-bottom-width:2px;border-bottom-color:var(--brand)}
.link-more:hover span{transform:translateX(4px)}

/* 顶部导航 */
.site-head{position:sticky;top:0;z-index:1030;background:transparent;transition:background-color .2s ease,box-shadow .2s ease}
.site-head::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:linear-gradient(90deg,var(--brand),rgba(168,255,62,0) 62%);opacity:0;transition:opacity .2s ease}
.site-head.is-scrolled{background:rgba(11,9,16,.86);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
.site-head.is-scrolled::after{opacity:1}
.head-inner{display:flex;align-items:center;gap:32px;height:68px}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--text-1);line-height:1.2}
.logo svg{flex:0 0 auto}
.logo:hover{color:var(--brand)}
.nav-main{margin-left:auto}
.nav-list{display:flex;align-items:center;gap:32px}
.nav-list a{position:relative;display:inline-block;padding:6px 0;font-size:16px;color:var(--text-2)}
.nav-list a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--brand);border-radius:2px;transition:width var(--t)}
.nav-list a:hover{color:var(--text-1)}
.nav-list a:hover::after{width:100%}
.nav-list a.is-active{color:var(--brand)}
.nav-list a.is-active::after{width:100%;box-shadow:0 0 14px rgba(168,255,62,.55)}
.head-actions{display:flex;align-items:center;gap:16px}
.head-cta{white-space:nowrap}
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:40px;height:40px;padding:0 9px;border-radius:var(--r-btn);border:1px solid var(--line-soft);background:var(--bg-1)}
.nav-toggle span{display:block;height:2px;width:20px;border-radius:2px;background:var(--text-1);transition:transform var(--t),opacity var(--t)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 分类页头（斜切色块） */
.cat-head{position:relative;overflow:hidden;padding:56px 0 72px;border-bottom:1px solid var(--line-soft)}
.cat-head::before{content:"";position:absolute;top:-40px;left:0;width:52%;height:calc(100% + 80px);background:rgba(123,77,255,.08);clip-path:polygon(0 0,100% 0,72% 100%,0 100%);pointer-events:none}
.cat-head .wrap{position:relative;z-index:1;display:grid;grid-template-columns:1.35fr .65fr;gap:48px;align-items:center}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--text-3);margin-bottom:22px}
.crumb a{color:var(--text-3)}
.crumb a:hover{color:var(--brand)}
.crumb i{font-style:normal;color:var(--text-3);opacity:.6}
.cat-head h1{font-size:52px;line-height:1.25;margin:18px 0 18px}
.cat-head h1 em{font-style:normal;color:var(--brand)}
.cat-lead{max-width:34em;color:var(--text-2);font-size:16px;line-height:1.9;margin:0}
.cat-meta{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.chip{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--text-2);padding:6px 12px;border-radius:999px;border:1px solid var(--line-soft);background:var(--bg-1)}
.chip b{color:var(--text-1);font-weight:500}
.cat-figure{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line-soft);aspect-ratio:16/11;background:var(--bg-2);box-shadow:var(--shadow-card)}
.cat-figure img{width:100%;height:100%;object-fit:cover}
.cat-figure figcaption{position:absolute;left:14px;bottom:14px;font-size:12px;color:var(--text-1);background:rgba(11,9,16,.72);border:1px solid var(--line-soft);border-radius:var(--r-badge);padding:4px 10px;backdrop-filter:blur(6px)}

/* 类型速览条 */
.type-strip{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:40px}
.type-strip .tag{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--text-2);padding:8px 14px;border-radius:var(--r-badge);border:1px solid var(--line-soft);background:var(--bg-1);transition:border-color var(--t),color var(--t),background-color var(--t)}
.type-strip .tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
.type-strip .tag.b::before{background:var(--brand)}
.type-strip .tag.c::before{background:var(--accent-2)}
.type-strip .tag:hover{color:var(--text-1);border-color:var(--line-neon);background:var(--bg-2)}

/* 时间轴 */
.timeline{position:relative;max-width:860px;margin:0 auto;padding-left:28px}
.timeline::before{content:"";position:absolute;left:4px;top:8px;bottom:8px;width:2px;border-radius:2px;background:linear-gradient(180deg,var(--line-neon),rgba(168,255,62,.28) 40%,rgba(123,77,255,.35) 100%)}
.tl-item{position:relative;padding-bottom:40px}
.tl-item:last-child{padding-bottom:0}
.tl-dot{position:absolute;left:-28px;top:8px;width:10px;height:10px;border-radius:50%;background:var(--brand);box-shadow:0 0 12px rgba(168,255,62,.7)}
.tl-item.is-violet .tl-dot{background:var(--accent);box-shadow:0 0 12px rgba(123,77,255,.8)}
.tl-body{background:var(--bg-1);border:1px solid var(--line-soft);border-radius:var(--r-card);padding:26px 28px;box-shadow:var(--shadow-card);transition:border-color var(--t),background-color var(--t),transform var(--t),box-shadow var(--t)}
.tl-item:hover .tl-body{border-color:var(--line-neon);background:var(--bg-2);transform:translateY(-2px);box-shadow:0 0 24px rgba(168,255,62,.16),var(--shadow-card)}
.tl-date{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums;margin-bottom:10px}
.tl-date .badge-t{font-size:12px;padding:3px 9px;border-radius:var(--r-badge);border:1px solid var(--line-neon);color:var(--brand);background:rgba(168,255,62,.06)}
.tl-date .badge-t.v{color:#C7B4FF;border-color:rgba(123,77,255,.45);background:rgba(123,77,255,.12)}
.tl-date .badge-t.o{color:#FFB98A;border-color:rgba(255,138,61,.42);background:rgba(255,138,61,.1)}
.tl-body h3{font-size:19px;line-height:1.4;margin-bottom:10px}
.tl-body p{font-size:14px;line-height:1.8;color:var(--text-2);margin:0 0 14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* 阅读指引 */
.guide-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.guide-card{background:var(--bg-1);border:1px solid var(--line-soft);border-radius:var(--r-lg);padding:36px;box-shadow:var(--shadow-card)}
.guide-card h2{font-size:32px;line-height:1.32;margin:16px 0 14px}
.guide-card p{color:var(--text-2);font-size:15px;line-height:1.9;margin:0}
.guide-list{margin-top:26px;display:grid;gap:14px}
.guide-list li{display:flex;gap:12px;align-items:flex-start;font-size:14px;color:var(--text-2);line-height:1.8}
.guide-list li::before{content:"";flex:0 0 auto;width:8px;height:8px;margin-top:9px;border-radius:2px;background:var(--brand);box-shadow:0 0 10px rgba(168,255,62,.6)}
.guide-figure{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line-soft);aspect-ratio:4/3;background:var(--bg-2)}
.guide-figure img{width:100%;height:100%;object-fit:cover}
.guide-float{position:absolute;left:18px;bottom:18px;right:18px;background:rgba(11,9,16,.82);border:1px solid var(--line-neon);border-radius:var(--r-card);padding:14px 16px;backdrop-filter:blur(10px)}
.guide-float strong{display:block;font-size:14px;color:var(--text-1);margin-bottom:4px}
.guide-float span{font-size:12px;color:var(--text-3);font-variant-numeric:tabular-nums}

/* FAQ */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.faq-item{background:var(--bg-1);border:1px solid var(--line-soft);border-radius:12px;padding:0 20px;transition:border-color var(--t),background-color var(--t)}
.faq-item.is-open{border-color:var(--line-neon);background:var(--bg-2)}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;padding:20px 0;text-align:left;font-size:16px;font-weight:500;color:var(--text-1);line-height:1.6}
.faq-q:hover{color:var(--brand)}
.faq-icon{position:relative;flex:0 0 auto;width:14px;height:14px}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand);border-radius:2px;transition:transform var(--t),opacity var(--t)}
.faq-icon::before{left:0;top:6px;width:14px;height:2px}
.faq-icon::after{left:6px;top:0;width:2px;height:14px}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-a{display:none;padding-bottom:20px;font-size:15px;line-height:1.9;color:var(--text-2);border-top:1px solid var(--line-soft);margin-top:-2px;padding-top:12px}
.faq-item.is-open .faq-a{display:block}

/* 交叉链接 */
.more-links{display:flex;flex-wrap:wrap;gap:28px;align-items:center}
.more-links a{display:inline-flex;align-items:center;gap:8px;font-size:15px;color:var(--text-2);padding-bottom:3px;border-bottom:1px solid var(--line-soft)}
.more-links a:hover{color:var(--brand);border-bottom-color:var(--brand)}
.more-links a span{transition:transform var(--t)}
.more-links a:hover span{transform:translateX(4px)}

/* 终末 CTA */
.cta-band{position:relative;overflow:hidden;border:1px solid var(--line-neon);border-radius:var(--r-lg);background:linear-gradient(135deg,rgba(123,77,255,.16),rgba(168,255,62,.08));padding:56px 48px;display:flex;align-items:center;justify-content:space-between;gap:40px;box-shadow:0 0 40px rgba(168,255,62,.1)}
.cta-band h2{font-size:32px;line-height:1.32;margin-bottom:12px}
.cta-band p{max-width:34em;color:var(--text-2);font-size:15px;line-height:1.9;margin:0}
.cta-actions{display:flex;flex-wrap:wrap;gap:16px}

/* 浮动 CTA */
.float-cta{position:fixed;right:32px;bottom:32px;z-index:1020;display:inline-flex;align-items:center;justify-content:center;height:52px;padding:0 24px;border-radius:999px;background:var(--brand);color:var(--brand-ink);font-size:15px;font-weight:600;box-shadow:0 12px 32px -12px rgba(168,255,62,.6);opacity:0;transform:translateY(12px);pointer-events:none}
.float-cta.is-on{opacity:1;transform:none;pointer-events:auto}
.float-cta:hover{transform:translateY(-2px);box-shadow:0 0 28px rgba(168,255,62,.5),0 14px 34px -12px rgba(168,255,62,.6);color:var(--brand-ink)}

/* 页脚 */
.site-foot{background:var(--bg-0);border-top:1px solid var(--line-soft);padding:72px 0 32px;margin-top:96px}
.foot-sub{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;padding-bottom:36px;border-bottom:1px solid var(--line-soft)}
.foot-sub p{margin:0;font-size:14px;color:var(--text-2)}
.sub-form{display:flex;gap:12px;flex-wrap:wrap}
.sub-form input{height:48px;min-width:260px;padding:0 16px;border-radius:var(--r-btn);background:var(--bg-2);border:1px solid var(--line-soft);color:var(--text-1);font-size:14px}
.sub-form input::placeholder{color:var(--text-3)}
.sub-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(168,255,62,.16)}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding:48px 0 36px}
.foot-col h4{font-size:14px;color:var(--text-1);margin-bottom:16px}
.foot-col ul{display:grid;gap:12px}
.foot-col ul a{font-size:14px;color:var(--text-2)}
.foot-col ul a:hover{color:var(--brand)}
.foot-brand p{margin:16px 0 0;font-size:14px;line-height:1.9;color:var(--text-2);max-width:30em}
.foot-info{display:grid;gap:10px;font-size:14px;color:var(--text-3)}
.foot-info span{color:var(--text-2)}
.foot-bottom{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;padding-top:24px;border-top:1px solid var(--line-soft);font-size:12px;color:var(--text-3)}

@media (max-width:1199px){
  .cat-head h1{font-size:44px}
  .cta-band{padding:48px 36px}
  .guide-grid{gap:32px}
}
@media (max-width:991px){
  .sec{padding:72px 0}
  .sec-head h2{font-size:30px}
  .head-inner{height:68px}
  .nav-main{position:fixed;top:0;right:0;bottom:0;width:min(84vw,340px);margin:0;padding:88px 24px 32px;background:var(--bg-1);border-left:1px solid var(--line-soft);transform:translateX(102%);transition:transform .24s ease;z-index:1040;overflow-y:auto}
  .nav-main.is-open{transform:none}
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-list li + li{border-top:1px solid var(--line-soft)}
  .nav-list a{display:flex;align-items:center;height:56px;font-size:17px;padding:0 4px}
  .nav-list a::after{display:none}
  .nav-list a.is-active{box-shadow:inset -3px 0 0 var(--brand)}
  .head-cta{display:none}
  .nav-toggle{display:flex}
  .head-actions{margin-left:auto}
  .cat-head .wrap{grid-template-columns:1fr;gap:32px}
  .cat-head h1{font-size:36px}
  .cat-figure{aspect-ratio:16/10}
  .guide-grid{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px 28px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .foot-brand{grid-column:1 / -1}
}
@media (max-width:768px){
  body{padding-bottom:calc(56px + env(safe-area-inset-bottom))}
  .wrap{padding:0 18px}
  .sec{padding:56px 0}
  .sec-head{margin-bottom:32px}
  .sec-head h2{font-size:26px}
  .cat-head{padding:36px 0 48px}
  .cat-head::before{width:100%;opacity:.6}
  .cat-head h1{font-size:30px;margin:14px 0 14px}
  .cat-lead{font-size:15px}
  .timeline{padding-left:24px}
  .tl-dot{left:-24px;width:9px;height:9px}
  .tl-body{padding:20px}
  .tl-body p{-webkit-line-clamp:3}
  .guide-card{padding:24px}
  .guide-card h2{font-size:26px}
  .float-cta{left:18px;right:18px;bottom:0;height:56px;border-radius:0;padding:0 18px;justify-content:center;padding-bottom:env(safe-area-inset-bottom);border-top:1px solid var(--line-neon);box-shadow:0 -8px 26px -12px rgba(168,255,62,.5)}
  .float-cta:hover{transform:none}
  .site-foot{margin-top:56px;padding-top:48px}
  .foot-sub{flex-direction:column;align-items:flex-start}
  .sub-form{width:100%}
  .sub-form input{min-width:0;width:100%}
  .sub-form .btn{width:100%}
  .cta-band h2{font-size:26px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .more-links{gap:16px;flex-direction:column;align-items:flex-start}
}
@media (max-width:420px){
  .cat-head h1{font-size:26px}
  .sec-head h2{font-size:23px}
  .tl-date{font-size:12px}
  .foot-grid{grid-template-columns:1fr}
}

/* roulang page: category2 */
:root{
  --bg-0:#0B0910;
  --bg-1:#14111D;
  --bg-2:#1C1828;
  --brand:#A8FF3E;
  --brand-ink:#0B0910;
  --accent:#7B4DFF;
  --accent-2:#FF8A3D;
  --text-1:#F3F1F8;
  --text-2:#ABA5BE;
  --text-3:#746E86;
  --line-soft:rgba(255,255,255,.07);
  --line-neon:rgba(168,255,62,.22);
  --ok:#59D98A;
  --r-card:16px;
  --r-lg:20px;
  --r-btn:10px;
  --r-badge:6px;
  --sh-card:0 18px 40px -24px rgba(0,0,0,.9);
  --sh-neon:0 0 24px rgba(168,255,62,.35);
  --ease:160ms ease;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;object-fit:cover;}
a{color:inherit;text-decoration:none;transition:color var(--ease);}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.num{font-family:"Sora","Inter",system-ui,sans-serif;font-variant-numeric:tabular-nums;letter-spacing:-.01em;}

/* ---------- header ---------- */
.site-head{
  position:sticky;
  top:0;
  z-index:1030;
  height:68px;
  display:flex;
  align-items:center;
  background:transparent;
  transition:background var(--ease),box-shadow var(--ease);
}
.site-head::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:1px;
  background:linear-gradient(90deg,var(--brand),rgba(168,255,62,0) 72%);
  opacity:0;
  transition:opacity var(--ease);
}
.site-head.is-scrolled{
  background:rgba(11,9,16,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.site-head.is-scrolled::after{opacity:1;}
.head-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px;}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--text-1);letter-spacing:0;}
.logo svg{flex:none;}
.logo:hover{color:var(--brand);}
.nav-list{display:flex;align-items:center;gap:32px;}
.nav-list a{
  position:relative;
  display:inline-block;
  padding:6px 0;
  font-size:16px;
  color:var(--text-2);
}
.nav-list a::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:100%;height:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform var(--ease);
}
.nav-list a:hover{color:var(--text-1);}
.nav-list a:hover::after{transform:scaleX(1);}
.nav-list a.is-active{color:var(--brand);}
.nav-list a.is-active::after{transform:scaleX(1);box-shadow:0 0 14px rgba(168,255,62,.55);}
.head-actions{display:flex;align-items:center;gap:16px;}
.nav-toggle{
  display:none;
  width:40px;height:40px;
  padding:0;
  background:transparent;
  border:1px solid var(--line-soft);
  border-radius:var(--r-btn);
  cursor:pointer;
  position:relative;
}
.nav-toggle span{
  position:absolute;left:10px;
  width:20px;height:2px;
  background:var(--text-1);
  border-radius:2px;
  transition:transform var(--ease),opacity var(--ease),top var(--ease);
}
.nav-toggle span:nth-child(1){top:13px;}
.nav-toggle span:nth-child(2){top:19px;}
.nav-toggle span:nth-child(3){top:25px;}
.nav-toggle.is-open span:nth-child(1){top:19px;transform:rotate(45deg);background:var(--brand);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){top:19px;transform:rotate(-45deg);background:var(--brand);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;
  border:1px solid transparent;
  border-radius:var(--r-btn);
  background:transparent;
  color:var(--text-1);
  font-size:15px;font-weight:600;line-height:1;
  text-decoration:none;
  cursor:pointer;
  transition:transform var(--ease),background var(--ease),box-shadow var(--ease),border-color var(--ease),color var(--ease);
}
.btn-solid{background:var(--brand);color:var(--brand-ink);box-shadow:0 12px 28px -16px rgba(168,255,62,.75);}
.btn-solid:hover{background:#b7ff61;color:var(--brand-ink);transform:translateY(-1px);box-shadow:var(--sh-neon);}
.btn-solid:active{transform:translateY(0);}
.btn-ghost{border-color:var(--line-neon);color:var(--text-1);}
.btn-ghost:hover{background:rgba(168,255,62,.08);color:var(--text-1);transform:translateY(-1px);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}

/* ---------- badges ---------- */
.tag{
  display:inline-block;
  padding:4px 10px;
  font-size:12px;
  font-weight:500;
  line-height:1.6;
  border-radius:var(--r-badge);
  border:1px solid var(--line-neon);
  color:var(--brand);
  background:transparent;
}
.tag-purple{border-color:rgba(123,77,255,.5);color:#B49BFF;}
.tag-orange{border-color:rgba(255,138,61,.5);color:var(--accent-2);}

/* ---------- page head ---------- */
.page-head{
  background:var(--bg-1);
  border-bottom:1px solid var(--line-soft);
  padding:56px 0 64px;
  position:relative;
  overflow:hidden;
}
.page-head::before{
  content:"";
  position:absolute;
  top:-160px;right:-120px;
  width:520px;height:520px;
  background:radial-gradient(circle,rgba(123,77,255,.22),transparent 68%);
  pointer-events:none;
}
.page-head-inner{
  display:grid;
  grid-template-columns:1.25fr .75fr;
  gap:48px;
  align-items:center;
  position:relative;
  z-index:1;
}
.crumbs{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-3);margin-bottom:20px;flex-wrap:wrap;}
.crumbs a{color:var(--text-3);}
.crumbs a:hover{color:var(--brand);}
.crumbs span[aria-current]{color:var(--text-2);}
.page-head h1{
  font-size:clamp(30px,4vw,44px);
  line-height:1.28;
  font-weight:700;
  margin:16px 0 20px;
  max-width:16em;
}
.page-head h1 em{font-style:normal;color:var(--brand);}
.page-sub{font-size:16px;line-height:1.85;color:var(--text-2);max-width:34em;}
.page-meta{display:flex;flex-wrap:wrap;gap:24px;margin-top:28px;font-size:12px;color:var(--text-3);}
.page-meta span{display:inline-flex;align-items:center;gap:8px;}
.page-meta span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);flex:none;}
.page-head-fig{margin:0;position:relative;}
.page-head-fig img{
  width:100%;
  aspect-ratio:4/3;
  border-radius:var(--r-lg);
  border:1px solid var(--line-soft);
  background:var(--bg-2);
  box-shadow:var(--sh-card);
}
.page-head-fig figcaption{
  position:absolute;
  left:-8px;bottom:-16px;
  background:var(--bg-2);
  border:1px solid var(--line-neon);
  border-radius:12px;
  padding:10px 16px;
  font-size:12px;
  color:var(--text-2);
  box-shadow:var(--sh-card);
}

/* ---------- sections ---------- */
.sec{padding:96px 0;}
.sec-alt{background:var(--bg-1);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);}
.sec-head{max-width:760px;margin-bottom:48px;}
.sec-head h2{font-size:clamp(24px,3vw,36px);line-height:1.32;font-weight:700;margin-bottom:16px;}
.sec-head h2::before{
  content:"";
  display:inline-block;
  width:4px;height:.9em;
  background:var(--brand);
  border-radius:2px;
  margin-right:14px;
  vertical-align:-.06em;
  box-shadow:0 0 14px rgba(168,255,62,.5);
}
.sec-desc{font-size:16px;line-height:1.9;color:var(--text-2);}

/* ---------- steps ---------- */
.step-list{margin-top:8px;}
.step-row{
  display:grid;
  grid-template-columns:104px 1fr;
  gap:24px;
  padding:32px 0 32px 0;
  border-top:1px solid var(--line-soft);
  position:relative;
  transition:background var(--ease);
}
.step-row:last-child{border-bottom:1px solid var(--line-soft);}
.step-row::before{
  content:"";
  position:absolute;
  left:-16px;top:32px;bottom:32px;
  width:3px;
  border-radius:3px;
  background:var(--brand);
  opacity:0;
  transition:opacity var(--ease);
}
.step-row:hover::before{opacity:1;}
.step-num{
  font-size:48px;
  line-height:1;
  font-weight:700;
  color:var(--brand);
  opacity:.7;
  transition:opacity var(--ease);
}
.step-row:hover .step-num{opacity:1;}
.step-body h3{font-size:19px;line-height:1.4;font-weight:700;margin-bottom:10px;}
.step-body p{font-size:15px;line-height:1.85;color:var(--text-2);max-width:42em;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:14px;
  font-size:14px;
  font-weight:500;
  color:var(--brand);
  border-bottom:1px solid rgba(168,255,62,.4);
  padding-bottom:2px;
}
.link-arrow span{transition:transform var(--ease);}
.link-arrow:hover span{transform:translateX(4px);}

/* ---------- scenario grid ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.scene-card{
  background:var(--bg-1);
  border:1px solid var(--line-soft);
  border-radius:var(--r-card);
  padding:28px;
  box-shadow:var(--sh-card);
  transition:transform var(--ease),border-color var(--ease),background var(--ease);
}
.scene-card:hover{transform:translateY(-2px);border-color:var(--line-neon);background:var(--bg-2);}
.scene-card h3{font-size:18px;line-height:1.4;font-weight:700;margin:16px 0 10px;}
.scene-card p{font-size:14px;line-height:1.75;color:var(--text-2);}
.scene-icon{
  width:42px;height:42px;
  display:flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:rgba(123,77,255,.16);
  border:1px solid rgba(123,77,255,.35);
  color:#C0ABFF;
  font-size:15px;font-weight:700;
}

/* ---------- compare ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.compare-card{
  background:var(--bg-2);
  border:1px solid var(--line-soft);
  border-radius:var(--r-card);
  padding:28px;
}
.compare-card h3{
  font-size:18px;font-weight:700;line-height:1.4;
  margin-bottom:18px;
  padding-bottom:14px;
  border-bottom:1px solid var(--line-soft);
}
.compare-card h3 span{color:var(--brand);font-size:14px;font-weight:500;margin-left:8px;}
.compare-card li{
  position:relative;
  padding-left:22px;
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
  margin-bottom:12px;
}
.compare-card li:last-child{margin-bottom:0;}
.compare-card li::before{
  content:"";
  position:absolute;
  left:0;top:.72em;
  width:8px;height:2px;
  border-radius:2px;
  background:var(--brand);
}
.compare-card.is-alt li::before{background:var(--accent);}

/* ---------- faq ---------- */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:start;}
.faq-item{
  background:var(--bg-1);
  border:1px solid var(--line-soft);
  border-radius:12px;
  transition:border-color var(--ease),background var(--ease);
}
.faq-item.is-open{border-color:var(--line-neon);background:var(--bg-2);}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px;
  background:none;border:0;
  color:var(--text-1);
  font-size:16px;font-weight:500;line-height:1.6;
  text-align:left;
  cursor:pointer;
}
.faq-icon{position:relative;width:14px;height:14px;flex:none;}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--brand);
  border-radius:2px;
  transition:transform var(--ease),opacity var(--ease);
}
.faq-icon::before{left:0;top:6px;width:14px;height:2px;}
.faq-icon::after{left:6px;top:0;width:2px;height:14px;}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg);opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease;}
.faq-a-inner{
  padding:14px 20px 20px;
  margin-top:0;
  border-top:1px solid var(--line-soft);
  font-size:15px;
  line-height:1.9;
  color:var(--text-2);
}

/* ---------- cross links ---------- */
.cross{
  display:flex;flex-wrap:wrap;align-items:center;gap:16px;
  padding:28px;
  background:var(--bg-1);
  border:1px solid var(--line-soft);
  border-radius:var(--r-card);
}
.cross h2{font-size:18px;font-weight:700;line-height:1.4;margin-right:8px;}
.cross a{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;
  font-size:14px;
  border:1px solid var(--line-soft);
  border-radius:999px;
  color:var(--text-2);
  transition:border-color var(--ease),color var(--ease),background var(--ease);
}
.cross a:hover{border-color:var(--line-neon);color:var(--brand);background:rgba(168,255,62,.06);}

/* ---------- final cta ---------- */
.final-cta{
  position:relative;
  overflow:hidden;
  border:1px solid var(--line-neon);
  border-radius:var(--r-lg);
  background:
    radial-gradient(circle at 88% 12%,rgba(123,77,255,.22),transparent 62%),
    radial-gradient(circle at 6% 92%,rgba(168,255,62,.12),transparent 58%),
    var(--bg-1);
  padding:56px 48px;
  box-shadow:var(--sh-card);
}
.final-cta h2{font-size:clamp(24px,3vw,34px);line-height:1.32;font-weight:700;margin-bottom:16px;}
.final-cta p{font-size:16px;line-height:1.9;color:var(--text-2);max-width:34em;}
.cta-actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:32px;}

/* ---------- floating cta ---------- */
.float-cta{
  position:fixed;
  right:32px;bottom:32px;
  z-index:1040;
  display:inline-flex;align-items:center;gap:8px;
  height:52px;padding:0 24px;
  border-radius:999px;
  background:var(--brand);
  color:var(--brand-ink);
  font-size:15px;font-weight:700;
  box-shadow:0 12px 32px -12px rgba(168,255,62,.6);
  opacity:0;
  transform:translateY(12px);
  pointer-events:none;
  transition:opacity .2s ease,transform .2s ease,box-shadow var(--ease);
}
.float-cta.is-show{opacity:1;transform:none;pointer-events:auto;}
.float-cta:hover{transform:translateY(-2px);box-shadow:0 0 32px rgba(168,255,62,.55);color:var(--brand-ink);}

/* ---------- footer ---------- */
.site-foot{
  background:var(--bg-0);
  border-top:1px solid var(--line-soft);
  padding:72px 0 32px;
}
.foot-sub{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  padding-bottom:40px;
  border-bottom:1px solid var(--line-soft);
}
.foot-sub p{font-size:15px;color:var(--text-2);}
.sub-form{display:flex;gap:12px;flex-wrap:wrap;}
.sub-form input{
  height:48px;
  min-width:260px;
  padding:0 16px;
  background:var(--bg-2);
  border:1px solid var(--line-soft);
  border-radius:var(--r-btn);
  color:var(--text-1);
  font-size:15px;
  outline:none;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.sub-form input::placeholder{color:var(--text-3);}
.sub-form input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(168,255,62,.16);}
.foot-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:48px;
  padding:48px 0;
}
.foot-brand p{font-size:14px;line-height:1.85;color:var(--text-3);margin-top:16px;max-width:26em;}
.foot-col h4{font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:16px;}
.foot-col li{margin-bottom:12px;}
.foot-col a{font-size:14px;color:var(--text-2);}
.foot-col a:hover{color:var(--brand);}
.foot-info div{font-size:14px;color:var(--text-3);margin-bottom:10px;}
.foot-info span{color:var(--text-2);}
.foot-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding-top:24px;
  border-top:1px solid var(--line-soft);
  font-size:12px;
  color:var(--text-3);
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .page-head-inner{gap:32px;}
  .foot-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
}
@media (max-width:991px){
  .nav-toggle{display:block;}
  .nav-main{
    position:fixed;
    top:60px;right:0;
    width:min(84vw,340px);
    height:calc(100vh - 60px);
    background:var(--bg-1);
    border-left:1px solid var(--line-soft);
    padding:24px;
    transform:translateX(102%);
    transition:transform .2s ease;
    overflow-y:auto;
  }
  .nav-main.is-open{transform:none;}
  .nav-list{flex-direction:column;align-items:stretch;gap:0;}
  .nav-list a{
    display:flex;align-items:center;
    height:56px;
    font-size:16px;
    color:var(--text-2);
    border-bottom:1px solid var(--line-soft);
    padding:0 12px 0 0;
  }
  .nav-list a::after{display:none;}
  .nav-list a.is-active{
    color:var(--brand);
    box-shadow:inset -3px 0 0 var(--brand);
  }
  .head-cta{display:none;}
  .site-head,.head-inner{height:60px;}
  .page-head{padding:40px 0 48px;}
  .page-head-inner{grid-template-columns:1fr;gap:40px;}
  .page-head h1{max-width:none;}
  .page-head-fig{max-width:520px;}
  .page-head-fig figcaption{left:0;bottom:-14px;}
  .sec{padding:64px 0;}
  .scene-grid{grid-template-columns:1fr;}
  .compare{grid-template-columns:1fr;}
  .faq-grid{grid-template-columns:1fr;}
  .step-row{grid-template-columns:72px 1fr;padding:26px 0;gap:16px;}
  .step-num{font-size:38px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .foot-brand{grid-column:1 / -1;}
}
@media (max-width:768px){
  body{padding-bottom:76px;}
  .wrap{padding:0 18px;}
  .logo{font-size:16px;}
  .logo svg{width:22px;height:22px;}
  .sec{padding:56px 0;}
  .sec-head{margin-bottom:32px;}
  .step-row{grid-template-columns:1fr;gap:8px;padding:24px 0;}
  .step-num{font-size:34px;}
  .step-body h3{font-size:17px;}
  .step-body p{font-size:14px;}
  .scene-card{padding:20px;}
  .compare-card{padding:20px;}
  .final-cta{padding:32px 20px;}
  .cta-actions .btn{width:100%;}
  .cross{padding:20px;gap:12px;}
  .cross h2{width:100%;margin:0 0 4px;}
  .float-cta{
    right:0;left:0;bottom:0;
    height:56px;
    padding:0 18px;
    border-radius:0;
    justify-content:center;
    border-top:1px solid var(--line-neon);
    transform:translateY(100%);
  }
  .float-cta.is-show{transform:none;}
  .foot-sub p{font-size:14px;}
  .sub-form{width:100%;}
  .sub-form input{flex:1 1 100%;min-width:0;}
  .sub-form .btn{width:100%;}
  .foot-grid{grid-template-columns:1fr;gap:28px;padding:32px 0;}
  .foot-bottom{flex-direction:column;}
}
@media (max-width:420px){
  .page-head h1{font-size:28px;}
  .sec-head h2{font-size:22px;}
  .step-num{font-size:30px;}
  .btn{height:46px;font-size:14px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}