/* roulang page: index */
:root{
  --bg-0:#0A0612;--bg-1:#130B22;--bg-2:#1B1030;--bg-3:#241640;
  --neon-a:#C6FF3D;--neon-b:#FF3D9A;--accent-warm:#FF8A3D;
  --line:rgba(198,255,61,.16);--line-strong:rgba(198,255,61,.42);
  --text-1:#F4F1FF;--text-2:#B4A9CE;--text-3:#7C718F;
  --ok:#33E1A1;--warn:#FFC24B;--err:#FF5A6E;
  --r-card:16px;--r-sm:12px;--r-btn:10px;
  --sh-card:inset 0 1px 0 var(--line),0 18px 40px rgba(0,0,0,.45);
  --sh-hover:inset 0 1px 0 var(--line-strong),0 18px 40px rgba(0,0,0,.5),0 0 24px rgba(198,255,61,.22);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  --font-num:Inter,"SF Pro Display",system-ui,sans-serif;
  --t:200ms ease-out;
}
*,*::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:var(--font-cn);font-size:17px;line-height:1.9;letter-spacing:0;overflow-x:hidden}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0}
ul,ol{list-style:none}
input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--neon-a);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
section{scroll-margin-top:80px}
.sec{padding:88px 0}
.sec-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-head h2{font-size:clamp(25px,3vw,32px);line-height:1.3;font-weight:700;letter-spacing:.01em;position:relative;padding-left:16px}
.sec-head h2::before{content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:4px;background:linear-gradient(180deg,var(--neon-a),var(--neon-b))}
.sec-head p{margin-top:14px;color:var(--text-2);font-size:16px}
.kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.06em;color:var(--neon-a);border:1px solid var(--line);border-radius:999px;padding:6px 14px;background:rgba(198,255,61,.06)}
.kicker i{width:6px;height:6px;border-radius:50%;background:var(--neon-a);box-shadow:0 0 10px var(--neon-a);font-style:normal}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 20px;border-radius:var(--r-btn);font-size:15px;font-weight:600;transition:transform var(--t),box-shadow var(--t),background-color var(--t),color var(--t),border-color var(--t);white-space:nowrap}
.btn svg{flex:0 0 auto}
.btn-primary{background:var(--neon-a);color:#100A1C;box-shadow:0 0 0 rgba(198,255,61,0)}
.btn-primary:hover{background:#d3ff5c;transform:translateY(-1px);box-shadow:0 0 22px rgba(198,255,61,.34)}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 10px rgba(198,255,61,.24)}
.btn-ghost{border:1px solid var(--line-strong);color:var(--neon-a);background:transparent}
.btn-ghost:hover{background:rgba(198,255,61,.08);transform:translateY(-1px)}
.btn-text{padding:0;min-height:36px;color:var(--neon-a);font-weight:600;gap:6px}
.btn-text:hover svg{transform:translateX(4px)}
.btn-text svg{transition:transform var(--t)}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none!important;box-shadow:none!important}

/* badges */
.badge{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:4px 12px;font-size:12px;line-height:1.6;font-weight:500}
.badge-cat{background:rgba(198,255,61,.12);color:var(--neon-a)}
.badge-data{background:rgba(255,61,154,.12);color:var(--neon-b)}
.badge-warm{background:rgba(255,138,61,.16);color:var(--accent-warm)}
.chipline{display:flex;flex-wrap:wrap;gap:10px}

/* header */
.site-header{position:sticky;top:0;z-index:60;background:rgba(10,6,18,.82);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}
.site-header::after{content:"";display:block;height:1px;background:linear-gradient(90deg,var(--neon-a),var(--neon-b))}
.nav-wrap{display:flex;align-items:center;gap:28px;height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:.01em}
.logo svg{flex:0 0 auto}
.logo span{transition:text-shadow var(--t),color var(--t)}
.logo:hover span{color:var(--neon-a);text-shadow:0 0 14px rgba(198,255,61,.45)}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.main-nav a{position:relative;display:inline-flex;align-items:center;gap:6px;padding:8px 12px;font-size:15px;font-weight:500;color:var(--text-2);border-radius:8px;transition:color var(--t),background-color var(--t)}
.main-nav a::before{content:"";width:4px;height:4px;border-radius:50%;background:var(--neon-a);opacity:0;transition:opacity var(--t)}
.main-nav a::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--neon-a);opacity:0;transition:opacity var(--t);box-shadow:0 0 8px var(--neon-a)}
.main-nav a:hover{color:var(--text-1);background:rgba(198,255,61,.06)}
.main-nav a:hover::before,.main-nav a:hover::after{opacity:1}
.main-nav a.is-active{color:var(--neon-a)}
.main-nav a.is-active::before,.main-nav a.is-active::after{opacity:1}
.nav-cta{display:inline-flex;align-items:center;gap:12px}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;align-items:center;justify-content:center}
.drawer{position:fixed;inset:0;z-index:80;background:rgba(10,6,18,.97);backdrop-filter:blur(8px);padding:76px 24px 32px;display:none;overflow-y:auto}
.drawer.is-open{display:block}
.drawer-close{position:absolute;top:14px;right:20px;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;display:flex;align-items:center;justify-content:center}
.drawer nav{display:flex;flex-direction:column;gap:2px}
.drawer nav a{font-size:18px;padding:16px 4px;border-bottom:1px solid var(--line);color:var(--text-1);opacity:0;transform:translateY(8px);animation:drawerIn 320ms ease-out forwards}
.drawer nav a:nth-child(1){animation-delay:40ms}
.drawer nav a:nth-child(2){animation-delay:80ms}
.drawer nav a:nth-child(3){animation-delay:120ms}
.drawer nav a:nth-child(4){animation-delay:160ms}
.drawer nav a.is-active{color:var(--neon-a)}
@keyframes drawerIn{to{opacity:1;transform:none}}
.drawer .btn{margin-top:24px;width:100%}

/* hero */
.hero{position:relative;padding:72px 0 80px;overflow:hidden}
.hero::before,.hero::after{content:"";position:absolute;border-radius:50%;pointer-events:none;filter:blur(40px)}
.hero::before{width:520px;height:520px;top:-180px;left:-140px;background:radial-gradient(circle,rgba(198,255,61,.16),transparent 65%)}
.hero::after{width:480px;height:480px;bottom:-200px;right:-120px;background:radial-gradient(circle,rgba(255,61,154,.16),transparent 65%)}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero h1{font-size:clamp(30px,4vw,52px);line-height:1.25;font-weight:800;letter-spacing:.01em;margin-top:20px}
.hero h1 em{font-style:normal;color:var(--neon-a)}
.hero-sub{margin-top:18px;font-size:clamp(16px,1.4vw,20px);color:var(--text-2);max-width:560px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.trust-bar{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px;padding-top:22px;border-top:1px solid var(--line)}
.trust-bar span{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--text-2)}
.trust-bar b{color:var(--neon-a);font-family:var(--font-num);font-size:15px}
.hero-visual{position:relative}
.hero-frame{position:relative;border-radius:var(--r-card);border:1px solid var(--line-strong);overflow:hidden;aspect-ratio:4/3;box-shadow:var(--sh-card)}
.hero-frame::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(198,255,61,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(198,255,61,.07) 1px,transparent 1px);background-size:26px 26px;pointer-events:none}
.hero-frame img{width:100%;height:100%;object-fit:cover}
.float-card{position:absolute;right:-10px;top:18px;background:rgba(27,16,48,.94);border:1px solid var(--line);border-radius:var(--r-sm);padding:12px 16px;box-shadow:0 18px 40px rgba(0,0,0,.5)}
.float-card b{display:block;font-family:var(--font-num);font-size:22px;color:var(--neon-a);letter-spacing:-.02em}
.float-card span{font-size:12px;color:var(--text-3)}

/* selling */
.sell-grid{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
.sell-side{position:sticky;top:96px}
.sell-side h2{font-size:clamp(24px,2.6vw,30px);line-height:1.35;font-weight:700;position:relative;padding-left:16px}
.sell-side h2::before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:4px;background:linear-gradient(180deg,var(--neon-a),var(--neon-b))}
.sell-side p{margin-top:16px;color:var(--text-2);font-size:15px}
.sell-index{margin-top:26px;display:flex;flex-direction:column;gap:8px;font-family:var(--font-num);font-size:13px;color:var(--text-3)}
.sell-index a{display:flex;gap:10px;align-items:center;transition:color var(--t)}
.sell-index a:hover{color:var(--neon-a)}
.sell-list{border-top:1px solid var(--line)}
.sell-item{position:relative;display:grid;grid-template-columns:56px 44px 1fr;gap:16px;align-items:start;padding:26px 0;border-bottom:1px solid var(--line);transition:background-color var(--t)}
.sell-item::before{content:"";position:absolute;left:-24px;top:26px;bottom:26px;width:3px;border-radius:3px;background:var(--neon-a);opacity:0;transition:opacity var(--t);box-shadow:0 0 12px rgba(198,255,61,.5)}
.sell-item:hover::before{opacity:1}
.sell-item:hover{background:rgba(198,255,61,.03)}
.sell-num{font-family:var(--font-num);font-size:26px;font-weight:700;color:var(--neon-a);letter-spacing:-.02em;line-height:1.2}
.sell-ico{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;background:var(--bg-2)}
.sell-item h3{font-size:19px;font-weight:600;line-height:1.45}
.sell-item p{margin-top:8px;font-size:15px;color:var(--text-2)}

/* demo */
.demo-grid{display:grid;grid-template-columns:5fr 7fr;gap:40px;align-items:start}
.demo-steps{display:flex;flex-direction:column;gap:10px}
.demo-step{display:flex;gap:14px;text-align:left;padding:16px 18px;border:1px solid var(--line);border-left:3px solid transparent;border-radius:var(--r-sm);background:var(--bg-2);transition:border-color var(--t),background-color var(--t),transform var(--t)}
.demo-step:hover{transform:translateX(2px)}
.demo-step b{display:block;font-size:16px;font-weight:600}
.demo-step span{display:block;margin-top:6px;font-size:14px;color:var(--text-2)}
.demo-step .st-no{font-family:var(--font-num);font-size:13px;color:var(--text-3);padding-top:3px}
.demo-step.is-active{border-left-color:var(--neon-a);background:var(--bg-3);box-shadow:0 0 20px rgba(198,255,61,.12)}
.demo-step.is-active .st-no{color:var(--neon-a)}
.demo-stage{position:relative;border-radius:var(--r-card);border:1px solid var(--line-strong);overflow:hidden;aspect-ratio:16/9;background:var(--bg-2)}
.demo-stage img{width:100%;height:100%;object-fit:cover}
.demo-stage .play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:64px;height:64px;border-radius:50%;background:rgba(198,255,61,.92);display:flex;align-items:center;justify-content:center;transition:box-shadow var(--t),transform var(--t)}
.demo-stage .play:hover{transform:translate(-50%,-50%) scale(1.06);box-shadow:0 0 28px rgba(198,255,61,.55)}
.demo-caption{margin-top:14px;font-size:14px;color:var(--text-2)}
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:44px;position:relative}
.timeline::before{content:"";position:absolute;left:6%;right:6%;top:7px;height:1px;background:linear-gradient(90deg,rgba(198,255,61,.5),rgba(255,61,154,.5))}
.tl-item{position:relative;padding-top:28px;text-align:center}
.tl-item::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:14px;height:14px;border-radius:50%;background:var(--bg-0);border:2px solid var(--neon-a);box-shadow:0 0 12px rgba(198,255,61,.45)}
.tl-item b{display:block;font-size:15px;font-weight:600}
.tl-item span{display:block;margin-top:6px;font-size:13px;color:var(--text-3)}

/* proof */
.stats{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stat{padding:30px 24px;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat b{display:block;font-family:var(--font-num);font-size:clamp(30px,3.4vw,38px);font-weight:700;color:var(--neon-a);letter-spacing:-.02em;line-height:1.1}
.stat b i{font-style:normal;font-size:15px;color:var(--text-2);margin-left:6px;letter-spacing:0}
.stat span{display:block;margin-top:10px;font-size:14px;color:var(--text-2)}
.quotes{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:44px}
.quote-cd{position:relative;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);padding:28px 26px 24px;box-shadow:var(--sh-card);transition:transform var(--t),box-shadow var(--t),border-color var(--t)}
.quote-cd:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:var(--line-strong)}
.quote-cd::before{content:"”";position:absolute;left:20px;top:2px;font-family:var(--font-num);font-size:52px;color:var(--neon-b);opacity:.5;line-height:1}
.quote-cd p{padding-top:20px;font-size:15px;color:var(--text-1);line-height:1.9}
.quote-cd footer{margin-top:16px;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3)}
.logos{display:flex;flex-wrap:wrap;gap:14px;margin-top:40px}
.logos span{flex:1 1 160px;text-align:center;padding:16px 12px;border:1px dashed var(--line);border-radius:var(--r-sm);font-size:14px;color:var(--text-3);filter:grayscale(1);transition:filter var(--t),color var(--t),border-color var(--t)}
.logos span:hover{filter:none;color:var(--neon-a);border-color:var(--line-strong)}

/* price */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.plan{position:relative;display:flex;flex-direction:column;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);padding:28px 24px;box-shadow:var(--sh-card);transition:transform var(--t),box-shadow var(--t),border-color var(--t)}
.plan:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:var(--line-strong)}
.plan.featured{border-color:var(--line-strong);transform:translateY(-8px);box-shadow:var(--sh-hover)}
.plan.featured::after{content:"";position:absolute;left:0;right:0;top:0;height:2px;border-radius:16px 16px 0 0;background:linear-gradient(90deg,var(--neon-a),var(--neon-b))}
.plan .tag-warm{position:absolute;right:18px;top:-12px;background:var(--accent-warm);color:#1A0C06;font-size:12px;font-weight:700;padding:4px 12px;border-radius:999px}
.plan h3{font-size:20px;font-weight:600}
.plan .price{margin-top:14px;font-family:var(--font-num);font-size:22px;font-weight:700;color:var(--neon-a);letter-spacing:-.02em}
.plan .price small{display:block;margin-top:6px;font-family:var(--font-cn);font-size:13px;font-weight:400;color:var(--text-3);letter-spacing:0}
.plan ul{margin-top:20px;padding-top:18px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:10px}
.plan li{position:relative;padding-left:24px;font-size:14px;line-height:1.9;color:var(--text-2)}
.plan li::before{content:"";position:absolute;left:6px;top:12px;width:8px;height:8px;border-radius:50%;background:var(--neon-a);box-shadow:0 0 8px rgba(198,255,61,.5)}
.plan .btn{margin-top:24px;width:100%}

/* posts */
.sec-head.row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none}
.posts{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{display:flex;flex-direction:column;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-card);transition:transform var(--t),box-shadow var(--t),border-color var(--t)}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:var(--line-strong)}
.thumb{position:relative;aspect-ratio:16/9;background:linear-gradient(135deg,#180e2b,#241640);overflow:hidden}
.thumb::before{content:"PG网页版";position:absolute;inset:0;display:grid;place-items:center;font-size:13px;color:var(--text-3);background-image:linear-gradient(rgba(198,255,61,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(198,255,61,.07) 1px,transparent 1px);background-size:24px 24px}
.thumb img{position:relative;z-index:1;width:100%;height:100%;object-fit:cover;transition:transform 240ms ease-out}
.post-card:hover .thumb img{transform:scale(1.03)}
.thumb img.is-error{opacity:0;visibility:hidden}
.post-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:12px;flex:1}
.post-body h3{font-size:18px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-body h3 a:hover{color:var(--neon-a)}
.post-body p{font-size:14px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--text-3);font-family:var(--font-num)}
.empty-state{grid-column:1/-1;background:var(--bg-2);border:1px dashed var(--line-strong);border-radius:var(--r-card);padding:48px 24px;text-align:center;color:var(--text-3)}
.empty-state svg{margin:0 auto 16px}
.empty-state p{font-size:16px;margin-bottom:20px;color:var(--text-2)}

/* faq */
.faq{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq details{border:1px solid var(--line);border-left:3px solid transparent;border-radius:var(--r-sm);background:var(--bg-2);transition:background-color var(--t),border-color var(--t)}
.faq details[open]{border-left-color:var(--neon-a);background:var(--bg-3)}
.faq summary{display:flex;align-items:center;gap:16px;min-height:48px;padding:16px 18px;cursor:pointer;font-size:17px;font-weight:600;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary .q-no{font-family:var(--font-num);font-size:13px;color:var(--neon-a);flex:0 0 auto}
.faq summary .q-arrow{margin-left:auto;transition:transform var(--t);color:var(--text-3);flex:0 0 auto}
.faq details[open] summary .q-arrow{transform:rotate(180deg);color:var(--neon-a)}
.faq .a-body{padding:0 18px 20px 50px;font-size:15px;color:var(--text-2);line-height:1.9}

/* cta */
.cta-band{position:relative;background:var(--bg-1);border-top:1px solid var(--line);overflow:hidden}
.cta-band::before{content:"";position:absolute;left:0;right:0;top:0;height:2px;background:linear-gradient(90deg,var(--neon-a),var(--neon-b))}
.cta-band::after{content:"";position:absolute;right:-40px;bottom:-60px;width:340px;height:340px;background-image:linear-gradient(rgba(198,255,61,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(198,255,61,.08) 1px,transparent 1px);background-size:26px 26px;opacity:.6;pointer-events:none}
.cta-inner{position:relative;display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center;padding:76px 0}
.cta-inner h2{font-size:clamp(24px,3vw,32px);line-height:1.35;font-weight:700}
.cta-inner p{margin-top:16px;color:var(--text-2);font-size:16px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}

/* footer */
.site-footer{background:var(--bg-0);border-top:1px solid var(--line);padding-top:60px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px}
.foot-brand .logo{margin-bottom:16px}
.foot-brand p{font-size:14px;color:var(--text-2);max-width:320px}
.foot-col h4{font-size:15px;font-weight:600;margin-bottom:16px}
.foot-col ul{display:flex;flex-direction:column;gap:10px}
.foot-col a,.foot-col span{font-size:14px;color:var(--text-2);transition:color var(--t),transform var(--t);display:inline-block}
.foot-col a:hover{color:var(--neon-a);transform:translateX(2px)}
.foot-bottom{margin-top:48px;padding:20px 0 28px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-3)}
.foot-bottom .to-top{display:inline-flex;align-items:center;gap:8px;color:var(--text-2);border:1px solid var(--line);border-radius:999px;padding:8px 14px;transition:color var(--t),border-color var(--t)}
.foot-bottom .to-top:hover{color:var(--neon-a);border-color:var(--line-strong)}

/* floating cta */
.float-cta{position:fixed;right:28px;bottom:32px;z-index:70;width:56px;height:56px;border-radius:50%;background:var(--neon-a);color:#100A1C;display:flex;align-items:center;justify-content:center;box-shadow:0 0 22px rgba(198,255,61,.4);opacity:0;transform:scale(.9);pointer-events:none;transition:opacity var(--t),transform var(--t),box-shadow var(--t)}
body.scrolled .float-cta{opacity:1;transform:scale(1);pointer-events:auto}
.float-cta:hover{transform:scale(1.06);box-shadow:0 0 32px rgba(198,255,61,.62)}
.mobile-cta{position:fixed;left:0;right:0;bottom:0;z-index:70;height:56px;padding:0 16px;display:none;align-items:center;justify-content:space-between;gap:12px;background:rgba(19,11,34,.97);border-top:1px solid var(--line);backdrop-filter:blur(10px);transform:translateY(100%);transition:transform var(--t)}
body.scrolled .mobile-cta{transform:none}
.mobile-cta span{font-size:13px;color:var(--text-2)}

@media (max-width:1279px){
  .container{max-width:960px}
  .sell-grid{grid-template-columns:1fr;gap:32px}
  .sell-side{position:static}
  .sell-index{flex-direction:row;flex-wrap:wrap;gap:16px}
  .hero-grid{gap:32px}
}
@media (max-width:1023px){
  .main-nav{display:none}
  .nav-toggle{display:flex}
  .nav-cta .btn{display:none}
  .hero-grid{grid-template-columns:1fr}
  .hero-frame{aspect-ratio:21/9}
  .float-card{right:12px;top:12px}
  .demo-grid{grid-template-columns:1fr}
  .posts{grid-template-columns:repeat(2,1fr)}
  .plans{grid-template-columns:1fr}
  .plan.featured{transform:none}
  .stats{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line)}
  .cta-inner{grid-template-columns:1fr;padding:64px 0}
  .cta-actions{justify-content:flex-start}
  .foot-grid{grid-template-columns:1fr 1fr}
  .timeline{grid-template-columns:1fr 1fr;gap:24px 0}
  .timeline::before{display:none}
}
@media (max-width:767px){
  body{font-size:16px;padding-bottom:72px}
  .container{padding:0 18px}
  .sec{padding:60px 0}
  .nav-wrap{height:56px}
  .hero{padding:48px 0 56px}
  .hero h1{font-size:clamp(28px,7vw,34px)}
  .hero-frame{aspect-ratio:16/9}
  .posts{grid-template-columns:1fr}
  .quotes{grid-template-columns:1fr}
  .sell-item{grid-template-columns:44px 1fr;gap:12px}
  .sell-num{font-size:20px}
  .sell-item .sell-ico{display:none}
  .timeline{grid-template-columns:1fr}
  .tl-item{text-align:left;padding-left:32px;padding-top:0}
  .tl-item::before{left:0;top:6px;transform:none}
  .float-cta{display:none}
  .mobile-cta{display:flex}
  .faq summary{font-size:16px;padding:14px 14px}
  .faq .a-body{padding:0 14px 18px 46px}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .cta-inner{padding:56px 0}
}
@media (max-width:479px){
  .hero-frame{height:200px;aspect-ratio:auto}
  .hero-cta .btn,.cta-actions .btn{width:100%}
  .stat{padding:22px 16px}
  .plan{padding:24px 18px}
  .float-card{display:none}
  .kicker{font-size:12px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition:none!important;animation:none!important}
}

/* roulang page: article */
:root{
  --bg-0:#0A0612;
  --bg-1:#130B22;
  --bg-2:#1B1030;
  --bg-3:#241640;
  --neon-a:#C6FF3D;
  --neon-b:#FF3D9A;
  --accent-warm:#FF8A3D;
  --line:rgba(198,255,61,.16);
  --line-strong:rgba(198,255,61,.42);
  --text-1:#F4F1FF;
  --text-2:#B4A9CE;
  --text-3:#7C718F;
  --ok:#33E1A1;
  --warn:#FFC24B;
  --err:#FF5A6E;
  --r-card:16px;
  --r-sm:12px;
  --r-btn:10px;
  --r-pill:999px;
  --shadow-card:inset 0 1px 0 rgba(198,255,61,.10), 0 18px 40px rgba(0,0,0,.45);
  --shadow-hover:0 0 24px rgba(198,255,61,.22);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  --font-num:Inter,"SF Pro Display",system-ui,sans-serif;
  --container:1200px;
  --header-h:64px;
  --ease:cubic-bezier(.2,.6,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.9;
  color:var(--text-1);
  background-color:var(--bg-0);
  background-image:
    radial-gradient(680px 460px at 10% -8%, rgba(198,255,61,.10), transparent 72%),
    radial-gradient(560px 400px at 94% 6%, rgba(255,61,154,.10), transparent 72%);
  background-repeat:no-repeat;
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:.01em}
p{margin:0}
::selection{background:rgba(198,255,61,.28);color:#fff}
:focus-visible{outline:2px solid var(--neon-a);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
@media (min-width:1024px) and (max-width:1279px){.container{max-width:960px}}

/* ---------- 阅读进度 ---------- */
.progress-bar{position:fixed;top:0;left:0;right:0;height:2px;z-index:90;pointer-events:none;background:rgba(255,255,255,.04)}
.progress-bar span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--neon-a),var(--neon-b));box-shadow:0 0 10px rgba(198,255,61,.45);transition:width .1s linear}

/* ---------- 顶栏 ---------- */
.site-header{position:sticky;top:0;z-index:80;height:var(--header-h);background:rgba(10,6,18,.84);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.site-header::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;background:linear-gradient(90deg,transparent,var(--neon-a),var(--neon-b),transparent);opacity:.65}
.header-inner{display:flex;align-items:center;gap:28px;height:100%}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:800;letter-spacing:.01em;color:var(--text-1);transition:text-shadow .2s var(--ease)}
.brand:hover{text-shadow:0 0 14px rgba(198,255,61,.55)}
.brand-mark{width:30px;height:30px;flex:0 0 30px;display:block}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:auto}
.main-nav a{position:relative;padding:6px 2px 6px 12px;font-size:15px;font-weight:500;color:var(--text-2);transition:color .2s var(--ease)}
.main-nav a::before{content:"";position:absolute;left:0;top:50%;width:4px;height:4px;border-radius:50%;background:var(--neon-a);transform:translateY(-50%) scale(0);transition:transform .2s var(--ease);box-shadow:0 0 10px rgba(198,255,61,.8)}
.main-nav a::after{content:"";position:absolute;left:12px;right:2px;bottom:-4px;height:2px;border-radius:2px;background:var(--neon-a);transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease);box-shadow:0 0 8px rgba(198,255,61,.6)}
.main-nav a:hover,.main-nav a.is-active{color:var(--neon-a)}
.main-nav a:hover::before,.main-nav a.is-active::before{transform:translateY(-50%) scale(1)}
.main-nav a:hover::after,.main-nav a.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{display:none;width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--line);align-items:center;justify-content:center;color:var(--text-1)}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px;transition:transform .2s var(--ease)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle.is-open span{background:transparent}
.nav-toggle.is-open span::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle.is-open span::after{transform:translateY(-6px) rotate(-45deg)}

/* ---------- 移动抽屉 ---------- */
.nav-drawer{position:fixed;inset:0;z-index:75;background:rgba(10,6,18,.97);backdrop-filter:blur(14px);padding:calc(var(--header-h) + 28px) 24px 32px;display:flex;flex-direction:column;gap:6px;opacity:0;visibility:hidden;transform:translateY(-8px);transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s}
.nav-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.nav-drawer a.drawer-link{display:flex;align-items:center;justify-content:space-between;min-height:56px;font-size:18px;font-weight:600;color:var(--text-1);border-bottom:1px solid var(--line);opacity:0;transform:translateY(8px)}
.nav-drawer.is-open a.drawer-link{animation:drawerIn .32s var(--ease) forwards}
.nav-drawer.is-open a.drawer-link:nth-child(1){animation-delay:.04s}
.nav-drawer.is-open a.drawer-link:nth-child(2){animation-delay:.08s}
.nav-drawer.is-open a.drawer-link:nth-child(3){animation-delay:.12s}
.nav-drawer.is-open a.drawer-link:nth-child(4){animation-delay:.16s}
.nav-drawer a.drawer-link:hover,.nav-drawer a.drawer-link.is-active{color:var(--neon-a)}
.nav-drawer .drawer-cta{margin-top:24px}
@keyframes drawerIn{to{opacity:1;transform:translateY(0)}}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 20px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease),filter .2s var(--ease)}
.btn-primary{background:var(--neon-a);color:#0A0612}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 24px rgba(198,255,61,.35)}
.btn-primary:active{transform:translateY(0);filter:brightness(.96)}
.btn-outline{background:transparent;border-color:var(--line-strong);color:var(--neon-a)}
.btn-outline:hover{background:rgba(198,255,61,.08);box-shadow:0 0 18px rgba(198,255,61,.16)}
.btn-ghost{background:transparent;color:var(--text-1);padding:0 6px;gap:6px}
.btn-ghost .arrow{transition:transform .2s var(--ease)}
.btn-ghost:hover{color:var(--neon-a)}
.btn-ghost:hover .arrow{transform:translateX(4px)}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;box-shadow:none;transform:none}

/* ---------- 徽章 / 标签 ---------- */
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);font-size:12px;font-weight:600;letter-spacing:.02em}
.badge--neon{background:rgba(198,255,61,.12);color:var(--neon-a)}
.badge--pink{background:rgba(255,61,154,.12);color:var(--neon-b)}
.badge--warm{background:rgba(255,138,61,.14);color:var(--accent-warm)}
.tag{display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:var(--r-pill);border:1px solid var(--line);font-size:13px;color:var(--text-2);transition:all .2s var(--ease)}
.tag:hover{border-color:var(--line-strong);color:var(--neon-a);background:rgba(198,255,61,.06)}

/* ---------- 文章头 ---------- */
.article-hero{position:relative;padding:36px 0 40px;background:var(--bg-1);overflow:hidden}
.article-hero::before{content:"";position:absolute;inset:0;background-image:url(/assets/images/backpic/back-1.webp);background-size:cover;background-position:center;opacity:.16;filter:saturate(.8)}
.article-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(19,11,34,.72),rgba(19,11,34,.96))}
.article-hero .container{position:relative;z-index:2}
.breadcrumb{margin-bottom:22px;font-size:13px;color:var(--text-3)}
.breadcrumb ol{display:flex;align-items:center;gap:8px;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none}
.breadcrumb ol::-webkit-scrollbar{display:none}
.breadcrumb li{white-space:nowrap}
.breadcrumb a{color:var(--text-3);transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--neon-a)}
.breadcrumb .sep{color:var(--text-3);opacity:.6}
.breadcrumb [aria-current="page"]{color:var(--neon-a);max-width:52vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-head{max-width:900px}
.article-title{margin-top:16px;font-size:clamp(30px,4.2vw,46px);line-height:1.28;font-weight:800;color:var(--text-1)}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:20px;font-size:14px;color:var(--text-3);font-family:var(--font-num)}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--text-3);opacity:.7}
.article-sep{margin-top:26px;height:1px;background:linear-gradient(90deg,var(--neon-a),var(--neon-b),transparent);opacity:.6}

/* ---------- 正文布局 ---------- */
.article-main{padding:56px 0 0}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;align-items:start}
.article-body-wrap{min-width:0;max-width:820px}
.article-body{font-size:17px;line-height:1.95;color:var(--text-2);word-wrap:break-word}
.article-body > * + *{margin-top:1.1em}
.article-body p{margin:0}
.article-body h2{position:relative;margin-top:40px;padding-left:16px;font-size:28px;line-height:1.35;color:var(--text-1);letter-spacing:.01em;scroll-margin-top:96px}
.article-body h2::before{content:"";position:absolute;left:0;top:.2em;width:4px;height:1em;border-radius:2px;background:var(--neon-a);box-shadow:0 0 12px rgba(198,255,61,.45)}
.article-body h3{margin-top:32px;font-size:21px;font-weight:600;line-height:1.45;color:var(--text-1);letter-spacing:.02em;scroll-margin-top:96px}
.article-body h4{margin-top:24px;font-size:17px;font-weight:600;color:var(--text-1)}
.article-body a{color:var(--neon-a);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-body a:hover{text-shadow:0 0 12px rgba(198,255,61,.5)}
.article-body strong{color:var(--text-1);font-weight:600}
.article-body blockquote{margin:26px 0;padding:16px 22px;border-left:3px solid var(--neon-b);background:rgba(255,61,154,.06);border-radius:0 var(--r-sm) var(--r-sm) 0;color:var(--text-2)}
.article-body ul,.article-body ol{padding-left:1.4em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:8px 0}
.article-body li::marker{color:var(--neon-a)}
.article-body img{max-width:100%;height:auto;margin:26px auto;border-radius:var(--r-sm);border:1px solid var(--line)}
.article-body figure{margin:26px 0}
.article-body figcaption{margin-top:10px;text-align:center;font-size:13px;color:var(--text-3)}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden}
.article-body thead th{background:var(--bg-2);color:var(--text-1);font-weight:600}
.article-body th,.article-body td{padding:11px 14px;border:1px solid var(--line);text-align:left}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.02)}
.article-body pre{margin:24px 0;padding:16px 18px;background:#0D0718;border:1px solid var(--line);border-radius:var(--r-sm);overflow-x:auto;font-size:14px;line-height:1.7}
.article-body code{font-family:var(--font-num);color:var(--neon-a);font-size:.94em}
.article-body hr{margin:34px 0;border:0;height:1px;background:var(--line)}

/* ---------- 空状态 ---------- */
.empty-state{margin:24px 0;padding:48px 24px;text-align:center;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-card)}
.empty-state svg{width:88px;height:88px;margin:0 auto 18px;display:block;color:var(--text-3)}
.empty-state p{font-size:16px;color:var(--text-2)}
.empty-state .btn{margin-top:20px}

/* ---------- 文末 ---------- */
.article-foot{margin-top:44px}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:32px}
.post-nav a{display:block;padding:18px 20px;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-card);transition:all .2s var(--ease)}
.post-nav a:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:var(--shadow-card),var(--shadow-hover)}
.post-nav .label{font-size:12px;color:var(--neon-a);letter-spacing:.06em}
.post-nav .title{margin-top:8px;font-size:16px;font-weight:600;color:var(--text-1);line-height:1.55}
.post-nav .is-next{text-align:right}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:calc(var(--header-h) + 24px);display:grid;gap:20px}
.side-card{padding:22px;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-card)}
.side-title{position:relative;padding-left:14px;font-size:16px;font-weight:700;color:var(--text-1);margin-bottom:14px}
.side-title::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:3px;height:16px;border-radius:2px;background:var(--neon-a);box-shadow:0 0 10px rgba(198,255,61,.5)}
.toc-list{border-left:1px solid var(--line);margin-left:4px}
.toc-list a{display:block;padding:7px 0 7px 14px;font-size:14px;line-height:1.6;color:var(--text-2);border-left:2px solid transparent;margin-left:-1px;transition:all .2s var(--ease)}
.toc-list a:hover{color:var(--neon-a);border-left-color:var(--neon-a)}
.toc-list .toc-h3 a{padding-left:26px;font-size:13px;color:var(--text-3)}
.toc-empty{font-size:13px;line-height:1.8;color:var(--text-3)}
.side-links li + li{margin-top:12px;padding-top:12px;border-top:1px solid var(--line)}
.side-links a{display:block;font-size:14px;font-weight:600;color:var(--text-1);transition:color .2s var(--ease)}
.side-links a:hover{color:var(--neon-a)}
.side-links span{display:block;margin-top:4px;font-size:12px;color:var(--text-3);line-height:1.7}

/* ---------- 相关推荐 ---------- */
.related-section{padding:72px 0 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.section-head h2{position:relative;padding-left:16px;font-size:30px;font-weight:700;color:var(--text-1)}
.section-head h2::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:4px;height:22px;border-radius:2px;background:linear-gradient(180deg,var(--neon-a),var(--neon-b));box-shadow:0 0 14px rgba(198,255,61,.45)}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.related-card{display:flex;flex-direction:column;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-card);transition:all .2s var(--ease)}
.related-card:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:var(--shadow-card),var(--shadow-hover)}
.related-card .thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,var(--bg-3),var(--bg-1))}
.related-card .thumb img{width:100%;height:100%;object-fit:cover}
.related-card .thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(10,6,18,.66))}
.related-card .card-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.related-card h3{font-size:18px;font-weight:600;color:var(--text-1);line-height:1.5}
.related-card p{font-size:14px;color:var(--text-2);line-height:1.8}
.related-card .card-meta{margin-top:auto;padding-top:12px;display:flex;align-items:center;gap:10px;font-size:12px;color:var(--text-3);border-top:1px solid var(--line)}

/* ---------- 结尾 CTA ---------- */
.cta-band{position:relative;margin-top:80px;padding:66px 0;background:var(--bg-1);overflow:hidden}
.cta-band::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--neon-a),var(--neon-b),transparent)}
.cta-band::after{content:"";position:absolute;right:-80px;top:-60px;width:360px;height:360px;background:
  linear-gradient(rgba(198,255,61,.10) 1px,transparent 1px) 0 0/40px 40px,
  linear-gradient(90deg,rgba(198,255,61,.10) 1px,transparent 1px) 0 0/40px 40px;
  -webkit-mask-image:radial-gradient(closest-side,#000,transparent);mask-image:radial-gradient(closest-side,#000,transparent);opacity:.5}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:32px}
.cta-text{max-width:640px}
.cta-text h2{font-size:clamp(24px,3vw,32px);font-weight:800;color:var(--text-1)}
.cta-text p{margin-top:12px;font-size:16px;color:var(--text-2)}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:0;padding-top:56px;background:var(--bg-0);border-top:1px solid var(--line);position:relative}
.site-footer::before{content:"";position:absolute;top:-1px;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--neon-a),var(--neon-b),transparent);opacity:.55}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:40px}
.footer-col h3{font-size:15px;font-weight:700;color:var(--text-1);margin-bottom:16px}
.footer-brand .brand{margin-bottom:14px}
.footer-brand p{font-size:14px;color:var(--text-2);line-height:1.85}
.footer-note{margin-top:10px;font-size:13px;color:var(--text-3)}
.footer-col ul li{font-size:14px;color:var(--text-2);line-height:1.9}
.footer-col ul li + li{margin-top:10px}
.footer-col ul a{display:inline-block;color:var(--text-2);transition:color .2s var(--ease),transform .2s var(--ease)}
.footer-col ul a:hover{color:var(--neon-a);transform:translateX(2px)}
.footer-bottom{border-top:1px solid var(--line);padding:18px 0 24px}
.footer-bottom__inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--text-3)}
.to-top{display:inline-flex;align-items:center;gap:6px;color:var(--text-2);transition:color .2s var(--ease)}
.to-top:hover{color:var(--neon-a)}

/* ---------- 浮动 CTA ---------- */
.float-cta{position:fixed;right:28px;bottom:32px;z-index:70;width:56px;height:56px;border-radius:50%;background:var(--neon-a);color:#0A0612;display:grid;place-items:center;box-shadow:0 0 26px rgba(198,255,61,.35);opacity:0;transform:scale(.9);pointer-events:none;transition:opacity .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease)}
.float-cta.is-visible{opacity:1;transform:scale(1);pointer-events:auto}
.float-cta:hover{transform:scale(1.06);box-shadow:0 0 34px rgba(198,255,61,.55)}
.mobile-bar{position:fixed;left:0;right:0;bottom:0;z-index:70;display:none;align-items:center;justify-content:space-between;gap:12px;height:56px;padding:0 16px;background:rgba(19,11,34,.96);backdrop-filter:blur(12px);border-top:1px solid var(--line);transform:translateY(100%);transition:transform .24s var(--ease)}
.mobile-bar.is-visible{transform:translateY(0)}
.mobile-bar span{font-size:13px;color:var(--text-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

@media (min-width:1024px) and (max-width:1279px){
  .article-layout{gap:40px;grid-template-columns:minmax(0,1fr) 280px}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:1023px){
  .main-nav{display:none}
  .nav-toggle{display:inline-flex}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:40px}
  .article-body-wrap{max-width:none}
  .article-side{position:static;grid-template-columns:repeat(2,minmax(0,1fr))}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
}
@media (max-width:767px){
  :root{--header-h:56px}
  body{padding-bottom:56px}
  .header-inner{gap:16px}
  .brand{font-size:16px}
  .main-nav{display:none}
  .header-actions .btn{display:none}
  .container{padding:0 18px}
  .article-hero{padding:26px 0 30px}
  .article-title{font-size:clamp(28px,7.6vw,34px)}
  .article-meta{font-size:13px}
  .article-main{padding:40px 0 0}
  .article-body{font-size:16px;line-height:1.9}
  .article-body h2{font-size:22px;margin-top:32px}
  .article-body h3{font-size:18px}
  .article-side{grid-template-columns:minmax(0,1fr)}
  .post-nav{grid-template-columns:minmax(0,1fr)}
  .post-nav .is-next{text-align:left}
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .section-head h2{font-size:24px}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-band{padding:48px 0;margin-top:56px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1}
  .float-cta{display:none}
  .mobile-bar{display:flex}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:26px}
  .footer-bottom__inner{flex-direction:column;align-items:flex-start}
}
@media (max-width:479px){
  .article-title{font-size:27px}
  .article-body{font-size:15.5px}
  .side-card{padding:18px}
  .related-card h3{font-size:17px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --bg-0:#0A0612;
  --bg-1:#130B22;
  --bg-2:#1B1030;
  --bg-3:#241640;
  --neon-a:#C6FF3D;
  --neon-b:#FF3D9A;
  --accent-warm:#FF8A3D;
  --line:rgba(198,255,61,.16);
  --line-strong:rgba(198,255,61,.42);
  --text-1:#F4F1FF;
  --text-2:#B4A9CE;
  --text-3:#7C718F;
  --ok:#33E1A1;
  --warn:#FFC24B;
  --err:#FF5A6E;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  --font-num:Inter,"SF Pro Display",system-ui,sans-serif;
  --r-card:16px;
  --r-sm:12px;
  --r-btn:10px;
  --shadow-card:0 1px 0 var(--line) inset,0 18px 40px rgba(0,0,0,.45);
  --shadow-hover:0 1px 0 var(--line) inset,0 18px 40px rgba(0,0,0,.45),0 0 24px rgba(198,255,61,.22);
  --t:220ms ease-out;
  --header-h:64px;
}
*,*::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;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
h1,h2,h3{letter-spacing:.01em}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:88px 0;scroll-margin-top:88px}
.section--alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--neon-a);
  letter-spacing:.08em;
  padding:6px 14px;border-radius:999px;
  background:rgba(198,255,61,.12);
  border:1px solid var(--line);
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--neon-a);box-shadow:0 0 8px rgba(198,255,61,.6)}
.section-head{margin-bottom:40px;max-width:760px}
.section-head h2{
  font-size:clamp(26px,3vw,34px);line-height:1.3;font-weight:700;
  margin-top:16px;
  position:relative;padding-left:16px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:2px;
  background:linear-gradient(180deg,var(--neon-a),var(--neon-b));
}
.section-head p{margin-top:14px;color:var(--text-2);font-size:16px;line-height:1.9}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;cursor:pointer;
  border:1px solid transparent;background:transparent;color:var(--text-1);
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
  white-space:nowrap;
}
.btn:focus-visible{outline:2px solid var(--neon-a);outline-offset:2px}
.btn-primary{background:var(--neon-a);color:#0A0612;font-weight:700}
.btn-primary:hover{background:#d4ff5f;transform:translateY(-1px);box-shadow:0 0 24px rgba(198,255,61,.3)}
.btn-outline{border-color:var(--line-strong);color:var(--neon-a)}
.btn-outline:hover{background:rgba(198,255,61,.08);transform:translateY(-1px)}
.btn-ghost{padding:0 6px;color:var(--text-1)}
.btn-ghost .arrow{transition:transform var(--t);display:inline-block}
.btn-ghost:hover{color:var(--neon-a)}
.btn-ghost:hover .arrow{transform:translateX(4px)}
.btn-sm{min-height:38px;padding:0 18px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(10,6,18,.82);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.site-header::after{
  content:"";display:block;height:1px;
  background:linear-gradient(90deg,transparent,var(--neon-a) 22%,var(--neon-b) 78%,transparent);
  opacity:.7;
}
.header-inner{display:flex;align-items:center;gap:28px;height:var(--header-h)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:32px;height:32px;border-radius:9px;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(198,255,61,.18),rgba(255,61,154,.18));
  border:1px solid var(--line-strong);
}
.brand-text{
  font-size:18px;font-weight:800;letter-spacing:.02em;
  transition:text-shadow var(--t),color var(--t);
}
.brand:hover .brand-text{color:var(--neon-a);text-shadow:0 0 14px rgba(198,255,61,.55)}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:8px;flex:1 1 auto}
.main-nav a{
  position:relative;font-size:15px;font-weight:500;color:var(--text-2);
  padding:6px 0 8px;transition:color var(--t);
}
.main-nav a::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%) scaleX(0);
  bottom:0;width:18px;height:2px;border-radius:2px;
  background:var(--neon-a);box-shadow:0 0 10px rgba(198,255,61,.7);
  transition:transform var(--t);
}
.main-nav a::before{
  content:"";position:absolute;left:-11px;top:50%;transform:translateY(-50%) scale(0);
  width:4px;height:4px;border-radius:50%;background:var(--neon-a);
  transition:transform var(--t);
}
.main-nav a:hover,.main-nav a.is-active{color:var(--neon-a)}
.main-nav a:hover::after,.main-nav a.is-active::after{transform:translateX(-50%) scaleX(1)}
.main-nav a:hover::before,.main-nav a.is-active::before{transform:translateY(-50%) scale(1)}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:rgba(27,16,48,.7);
  cursor:pointer;padding:0;place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text-1);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text-1);border-radius:2px;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.drawer{
  position:fixed;inset:var(--header-h) 0 0;z-index:79;
  background:rgba(10,6,18,.97);
  backdrop-filter:blur(14px);
  padding:28px 24px 48px;
  display:flex;flex-direction:column;gap:6px;
  transform:translateY(-8px);opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity var(--t),transform var(--t),visibility var(--t);
}
.drawer.is-open{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0)}
.drawer a{
  font-size:18px;font-weight:600;color:var(--text-1);
  padding:16px 4px;border-bottom:1px solid rgba(198,255,61,.12);
  opacity:0;transform:translateY(6px);
  transition:opacity 240ms ease-out,transform 240ms ease-out,color var(--t);
}
.drawer.is-open a{opacity:1;transform:translateY(0)}
.drawer a:nth-child(1){transition-delay:40ms}
.drawer a:nth-child(2){transition-delay:80ms}
.drawer a:nth-child(3){transition-delay:120ms}
.drawer a:nth-child(4){transition-delay:160ms}
.drawer a.is-active,.drawer a:hover{color:var(--neon-a)}
.drawer .btn{margin-top:24px;width:100%}

/* ---------- breadcrumb ---------- */
.crumb{padding:20px 0 0;font-size:13px;color:var(--text-3)}
.crumb ol{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.crumb li::after{content:"›";margin-left:8px;color:var(--text-3)}
.crumb li:last-child::after{content:"";margin:0}
.crumb a{color:var(--text-3);transition:color var(--t)}
.crumb a:hover{color:var(--neon-a)}
.crumb .current{color:var(--neon-a)}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:56px 0 88px;scroll-margin-top:88px}
.hero::before,.hero::after{
  content:"";position:absolute;border-radius:50%;pointer-events:none;filter:blur(90px);
}
.hero::before{width:520px;height:520px;left:-180px;top:-160px;background:rgba(198,255,61,.10)}
.hero::after{width:460px;height:460px;right:-160px;top:80px;background:rgba(255,61,154,.10)}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero h1{
  font-size:clamp(30px,4.4vw,50px);line-height:1.25;font-weight:800;margin:20px 0 0;
}
.hero h1 em{font-style:normal;color:var(--neon-a)}
.hero-sub{margin-top:20px;font-size:17px;line-height:1.9;color:var(--text-2);max-width:560px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.trust-row{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:32px;
  padding-top:24px;border-top:1px solid var(--line);
}
.trust-row span{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;color:var(--text-2);
  padding:6px 12px;border-radius:999px;
  background:rgba(27,16,48,.7);border:1px solid var(--line);
}
.trust-row span i{width:6px;height:6px;border-radius:50%;background:var(--neon-b);display:block}
.hero-visual{position:relative}
.media-box{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line-strong);
  background:#160d28;
  box-shadow:var(--shadow-card);
  aspect-ratio:16/9;
}
.media-box img{width:100%;height:100%;object-fit:cover}
.media-box::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(198,255,61,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(198,255,61,.06) 1px,transparent 1px);
  background-size:36px 36px;
}
.media-box.media-fallback::before{
  content:"PG网页版";
  position:absolute;inset:0;display:grid;place-items:center;
  font-size:20px;font-weight:800;letter-spacing:.14em;color:rgba(198,255,61,.55);
  background:linear-gradient(135deg,#180f2b,#241640);
}
.float-stat{
  position:absolute;right:-14px;top:-18px;
  background:var(--bg-3);border:1px solid var(--line-strong);
  border-radius:var(--r-sm);padding:12px 16px;min-width:150px;
  box-shadow:0 0 24px rgba(198,255,61,.16);
}
.float-stat b{display:block;font-family:var(--font-num);font-size:24px;color:var(--neon-a);letter-spacing:-.02em;line-height:1.2}
.float-stat span{font-size:12px;color:var(--text-3)}

/* ---------- split sections ---------- */
.split{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
}
.split + .split{margin-top:88px}
.split-copy h2{
  font-size:clamp(24px,2.6vw,32px);line-height:1.35;font-weight:700;
  position:relative;padding-left:16px;
}
.split-copy h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:2px;
  background:linear-gradient(180deg,var(--neon-a),var(--neon-b));
}
.split-copy p{margin-top:18px;color:var(--text-2);font-size:16px;line-height:1.9}
.split-list{margin-top:22px;display:flex;flex-direction:column;gap:0}
.split-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:14px 0;border-top:1px solid var(--line);
  font-size:15px;color:var(--text-2);
}
.split-list li:last-child{border-bottom:1px solid var(--line)}
.split-list li b{color:var(--text-1);font-weight:600}
.num-chip{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;display:grid;place-items:center;
  font-family:var(--font-num);font-size:12px;font-weight:700;color:#0A0612;background:var(--neon-a);
  margin-top:4px;
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.tag{
  font-size:12px;padding:5px 12px;border-radius:999px;
  background:rgba(198,255,61,.12);color:var(--neon-a);border:1px solid var(--line);
}
.tag--pink{background:rgba(255,61,154,.12);color:var(--neon-b);border-color:rgba(255,61,154,.2)}

/* ---------- points ---------- */
.points-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.point-card{
  position:relative;background:var(--bg-2);border:1px solid var(--line);
  border-radius:var(--r-card);padding:28px 26px 26px;
  box-shadow:var(--shadow-card);
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
  overflow:hidden;
}
.point-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--neon-a),var(--neon-b));
  opacity:.75;
}
.point-card:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:var(--shadow-hover)}
.point-card .idx{
  font-family:var(--font-num);font-size:13px;font-weight:700;letter-spacing:.06em;
  color:var(--neon-a);
}
.point-card h3{font-size:19px;font-weight:600;margin-top:10px;line-height:1.5}
.point-card p{margin-top:10px;font-size:15px;color:var(--text-2);line-height:1.9}
.point-card .meta{
  margin-top:18px;padding-top:14px;border-top:1px solid var(--line);
  display:flex;gap:10px;align-items:center;font-size:12px;color:var(--text-3);
}

/* ---------- stats ---------- */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.stat{padding:34px 24px;border-left:1px solid var(--line)}
.stat:first-child{border-left:0}
.stat b{
  display:block;font-family:var(--font-num);font-size:clamp(30px,3.4vw,40px);
  font-weight:800;color:var(--neon-a);letter-spacing:-.02em;line-height:1.1;
}
.stat b small{font-size:14px;font-weight:600;color:var(--text-2);margin-left:4px;letter-spacing:0}
.stat span{display:block;margin-top:8px;font-size:14px;color:var(--text-2)}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:920px}
.faq-list details{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;transition:border-color var(--t),background var(--t);
}
.faq-list details[open]{border-color:var(--line-strong);background:var(--bg-3)}
.faq-list summary{
  list-style:none;cursor:pointer;display:flex;gap:16px;align-items:flex-start;
  padding:20px 22px;min-height:48px;
  font-size:17px;font-weight:600;color:var(--text-1);
  transition:color var(--t);
}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary:hover{color:var(--neon-a)}
.faq-list summary .q{
  font-family:var(--font-num);font-size:13px;font-weight:700;color:var(--neon-a);
  flex:0 0 auto;padding-top:4px;letter-spacing:.04em;
}
.faq-list summary .plus{
  margin-left:auto;flex:0 0 auto;width:18px;height:18px;position:relative;margin-top:6px;
}
.faq-list summary .plus::before,.faq-list summary .plus::after{
  content:"";position:absolute;background:var(--neon-a);border-radius:2px;transition:transform var(--t),opacity var(--t);
}
.faq-list summary .plus::before{left:0;top:8px;width:18px;height:2px}
.faq-list summary .plus::after{left:8px;top:0;width:2px;height:18px}
.faq-list details[open] summary .plus::after{transform:scaleY(0);opacity:0}
.faq-body{
  padding:0 22px 22px 60px;font-size:15px;line-height:1.9;color:var(--text-2);
  border-left:3px solid transparent;
  animation:fadeIn 240ms ease-out;
}
.faq-list details[open] .faq-body{border-left-color:var(--neon-a)}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#150c26,#0d0718);
  border-top:1px solid var(--line-strong);
  padding:76px 0;
}
.cta-band::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--neon-a),var(--neon-b),var(--accent-warm));
}
.cta-band::after{
  content:"";position:absolute;right:-60px;bottom:-120px;width:420px;height:420px;border-radius:50%;
  background:rgba(198,255,61,.08);filter:blur(80px);pointer-events:none;
}
.cta-inner{position:relative;display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center}
.cta-inner h2{font-size:clamp(26px,3.2vw,36px);line-height:1.3;font-weight:800}
.cta-inner h2 em{font-style:normal;color:var(--neon-a)}
.cta-inner p{margin-top:16px;color:var(--text-2);font-size:16px;max-width:600px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.cta-grid-deco{
  height:180px;border-radius:var(--r-card);border:1px solid var(--line);
  background-image:linear-gradient(rgba(198,255,61,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(198,255,61,.08) 1px,transparent 1px);
  background-size:24px 24px;
  background-color:rgba(27,16,48,.5);
}

/* ---------- footer ---------- */
.site-footer{
  background:var(--bg-0);border-top:1px solid var(--line-strong);
  padding:64px 0 0;position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--neon-a),var(--neon-b),transparent);opacity:.6;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--text-2);line-height:1.9;max-width:320px}
.footer-brand .kw{color:var(--neon-a);font-weight:600}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:16px;color:var(--text-1)}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col a,.footer-col span{font-size:14px;color:var(--text-2);transition:color var(--t),transform var(--t);display:inline-block}
.footer-col a:hover{color:var(--neon-a);transform:translateX(2px)}
.footer-bottom{
  margin-top:52px;border-top:1px solid var(--line);
  padding:20px 0 28px;display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.to-top{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--text-2);
  padding:8px 14px;border-radius:999px;border:1px solid var(--line);
  transition:color var(--t),border-color var(--t),background var(--t);
}
.to-top:hover{color:var(--neon-a);border-color:var(--line-strong);background:rgba(198,255,61,.08)}

/* ---------- floating cta ---------- */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:70;
  width:56px;height:56px;border-radius:50%;
  background:var(--neon-a);color:#0A0612;
  display:grid;place-items:center;
  box-shadow:0 0 0 1px rgba(198,255,61,.4),0 0 24px rgba(198,255,61,.35);
  transform:scale(.9);opacity:0;visibility:hidden;
  transition:opacity var(--t),transform var(--t),visibility var(--t),box-shadow var(--t);
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:scale(1)}
.float-cta:hover{transform:scale(1.06);box-shadow:0 0 0 1px rgba(198,255,61,.5),0 0 32px rgba(198,255,61,.5)}
.float-cta:focus-visible{outline:2px solid var(--neon-a);outline-offset:3px}
.mobile-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  display:none;align-items:center;gap:12px;
  padding:10px 16px;height:56px;
  background:rgba(15,9,26,.94);
  backdrop-filter:blur(12px);
  border-top:1px solid var(--line-strong);
  transform:translateY(100%);
  transition:transform var(--t);
}
.mobile-cta.is-visible{transform:translateY(0)}
.mobile-cta p{font-size:13px;color:var(--text-2);flex:1 1 auto;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.mobile-cta .btn{min-height:38px;padding:0 16px;font-size:14px;flex:0 0 auto}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .container{max-width:960px}
  .hero-grid{gap:40px}
  .split{gap:40px}
}
@media (max-width:1023px){
  .main-nav{display:none}
  .header-actions .btn-primary{display:none}
  .nav-toggle{display:grid}
  .hero{padding:36px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-sub{max-width:none}
  .split{grid-template-columns:1fr;gap:32px}
  .split + .split{margin-top:64px}
  .split--reverse .split-media{order:-1}
  .points-grid{grid-template-columns:1fr 1fr}
  .stats{grid-template-columns:1fr 1fr}
  .stat{border-left:1px solid var(--line)}
  .stat:nth-child(odd){border-left:0}
  .stat:nth-child(3),.stat:nth-child(4){border-top:1px solid var(--line)}
  .cta-inner{grid-template-columns:1fr}
  .cta-grid-deco{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  :root{--header-h:56px}
  body{padding-bottom:56px;font-size:15.5px}
  .container{padding:0 18px}
  .section{padding:64px 0}
  .hero h1{font-size:clamp(28px,8vw,34px)}
  .points-grid{grid-template-columns:1fr}
  .faq-body{padding:0 20px 20px 20px}
  .float-cta{display:none}
  .mobile-cta{display:flex}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-col ul{gap:10px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .trust-row{gap:8px}
  .float-stat{right:8px;top:-14px;min-width:132px;padding:10px 14px}
}
@media (max-width:479px){
  .hero h1{font-size:28px}
  .section-head h2{font-size:24px}
  .media-box{aspect-ratio:16/9}
  .hero-visual .media-box{max-height:200px}
  .stats{grid-template-columns:1fr}
  .stat{border-left:0;border-top:1px solid var(--line);padding:24px 12px}
  .stat:first-child{border-top:0}
  .btn{min-height:46px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
}

/* roulang page: category2 */
:root{
  --bg-0:#0A0612;--bg-1:#130B22;--bg-2:#1B1030;--bg-3:#241640;
  --neon-a:#C6FF3D;--neon-b:#FF3D9A;--accent-warm:#FF8A3D;
  --line:rgba(198,255,61,.16);--line-strong:rgba(198,255,61,.42);
  --text-1:#F4F1FF;--text-2:#B4A9CE;--text-3:#7C718F;
  --ok:#33E1A1;--warn:#FFC24B;--err:#FF5A6E;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  --font-num:Inter,"SF Pro Display",system-ui,sans-serif;
  --r-card:16px;--r-sm:12px;--r-btn:10px;
  --shadow-card:inset 0 1px 0 var(--line),0 18px 40px rgba(0,0,0,.45);
  --shadow-hover:inset 0 1px 0 var(--line),0 18px 40px rgba(0,0,0,.45),0 0 24px rgba(198,255,61,.22);
  --t:200ms ease-out;--maxw:1200px;--header-h:64px;
}
*,*::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;overflow-x:hidden}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0}
h1,h2,h3,h4{margin:0;letter-spacing:.01em}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
:focus-visible{outline:2px solid var(--neon-a);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:88px 0;border-top:1px solid var(--line);scroll-margin-top:80px}
.section--alt{background:var(--bg-1)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.sec-title{position:relative;padding-left:18px;font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.3}
.sec-title::before{content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;border-radius:2px;background:linear-gradient(180deg,var(--neon-a),var(--neon-b))}
.sec-desc{color:var(--text-2);font-size:15px;max-width:62ch;margin-top:12px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--neon-a);background:rgba(198,255,61,.12);border-radius:999px;padding:6px 14px}
.eyebrow--pink{color:var(--neon-b);background:rgba(255,61,154,.12)}

/* header */
.site-header{position:sticky;top:0;z-index:60;background:rgba(10,6,18,.86);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}
.site-header::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:linear-gradient(90deg,var(--neon-a),var(--neon-b))}
.header-inner{display:flex;align-items:center;gap:20px;height:var(--header-h)}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;flex-shrink:0}
.brand-mark{width:30px;height:30px;flex-shrink:0}
.brand-text{font-size:18px;font-weight:800;transition:var(--t)}
.brand:hover .brand-text{color:var(--neon-a);text-shadow:0 0 12px rgba(198,255,61,.5)}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.main-nav a{position:relative;padding:8px 12px;font-size:15px;font-weight:500;color:var(--text-2);border-radius:8px;transition:var(--t)}
.main-nav a::before{content:"";position:absolute;left:2px;top:50%;width:4px;height:4px;border-radius:50%;background:var(--neon-a);transform:translateY(-50%) scale(0);transition:var(--t)}
.main-nav a::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--neon-a),var(--neon-b));opacity:0;transition:var(--t)}
.main-nav a:hover{color:var(--text-1)}
.main-nav a:hover::before,.main-nav a.is-active::before{transform:translateY(-50%) scale(1)}
.main-nav a.is-active{color:var(--neon-a);text-shadow:0 0 14px rgba(198,255,61,.35)}
.main-nav a.is-active::after,.main-nav a:hover::after{opacity:1}
.nav-cta{margin-left:8px}
.nav-toggle{display:none;width:44px;height:44px;place-items:center;border:1px solid var(--line-strong);border-radius:var(--r-btn);margin-left:auto}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--neon-a);border-radius:2px;position:relative;transition:var(--t)}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--neon-a);border-radius:2px;transition:var(--t)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.drawer{position:fixed;left:0;right:0;top:var(--header-h);bottom:0;z-index:65;background:rgba(10,6,18,.98);backdrop-filter:blur(16px);padding:20px 24px 40px;opacity:0;transform:translateY(-8px);pointer-events:none;transition:var(--t);overflow-y:auto}
.drawer.is-open{opacity:1;transform:none;pointer-events:auto}
.drawer a{display:block;font-size:18px;font-weight:600;color:var(--text-2);padding:18px 4px;border-bottom:1px solid var(--line);transition:var(--t)}
.drawer a:hover,.drawer a.is-active{color:var(--neon-a);padding-left:10px}
.drawer .btn{margin-top:24px;width:100%}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;transition:var(--t);white-space:nowrap}
.btn-primary{background:var(--neon-a);color:#0A0612}
.btn-primary:hover{background:#d6ff66;transform:translateY(-1px);box-shadow:0 0 24px rgba(198,255,61,.35)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{border-color:var(--line-strong);color:var(--neon-a);background:transparent}
.btn-outline:hover{background:rgba(198,255,61,.08)}
.btn-ghost{color:var(--text-2);padding:0 4px}
.btn-ghost:hover{color:var(--neon-a)}
.btn-ghost .arrow{display:inline-block;transition:var(--t)}
.btn-ghost:hover .arrow{transform:translateX(4px)}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed}

/* hero */
.hero{position:relative;overflow:hidden;padding:72px 0 80px}
.hero::before,.hero::after{content:"";position:absolute;border-radius:50%;pointer-events:none;filter:blur(60px)}
.hero::before{width:520px;height:520px;left:-160px;top:-200px;background:radial-gradient(circle,rgba(198,255,61,.16),transparent 68%)}
.hero::after{width:460px;height:460px;right:-140px;bottom:-180px;background:radial-gradient(circle,rgba(255,61,154,.14),transparent 68%)}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.crumb{margin-bottom:20px}
.crumb ol{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);overflow-x:auto;white-space:nowrap}
.crumb li{display:flex;align-items:center;gap:8px}
.crumb li+li::before{content:"›";color:var(--text-3)}
.crumb a:hover{color:var(--neon-a)}
.crumb .current{color:var(--neon-a)}
.hero h1{font-size:clamp(30px,4vw,52px);line-height:1.25;font-weight:800;margin-top:18px}
.hero h1 em{font-style:normal;color:var(--neon-a);text-shadow:0 0 22px rgba(198,255,61,.32)}
.hero-sub{margin-top:18px;font-size:17px;color:var(--text-2);max-width:58ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.trust-row{display:flex;flex-wrap:wrap;gap:12px 36px;margin-top:32px;padding-top:22px;border-top:1px solid var(--line)}
.trust-item{display:flex;flex-direction:column}
.trust-num{font-family:var(--font-num);font-size:26px;font-weight:800;color:var(--neon-a);letter-spacing:-.02em;line-height:1.2}
.trust-label{font-size:13px;color:var(--text-3);margin-top:4px}
.visual-frame{position:relative;border-radius:var(--r-card);border:1px solid var(--line-strong);overflow:hidden;background:var(--bg-2);box-shadow:0 0 40px rgba(198,255,61,.12)}
.visual-frame img{width:100%;aspect-ratio:4/3;object-fit:cover}
.visual-frame::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(198,255,61,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(198,255,61,.07) 1px,transparent 1px);background-size:44px 44px;pointer-events:none}
.float-card{position:absolute;right:-8px;top:-16px;z-index:3;background:var(--bg-3);border:1px solid var(--line-strong);border-radius:var(--r-sm);padding:12px 16px;box-shadow:0 0 24px rgba(255,61,154,.18)}
.float-card b{display:block;font-family:var(--font-num);font-size:20px;font-weight:800;color:var(--neon-b);letter-spacing:-.02em}
.float-card span{font-size:12px;color:var(--text-3)}

/* split */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split-media{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);background:var(--bg-2);box-shadow:var(--shadow-card)}
.split-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.split h3{font-size:22px;font-weight:600;margin-bottom:14px}
.split p{color:var(--text-2);font-size:15.5px}
.check-list{margin-top:22px}
.check-list li{display:flex;gap:12px;padding:14px 0;border-bottom:1px solid var(--line);font-size:15px;color:var(--text-2)}
.check-list li:first-child{border-top:1px solid var(--line)}
.check-list svg{flex-shrink:0;margin-top:7px}
.tag-inline{display:inline-flex;align-items:center;font-size:12px;padding:3px 10px;border-radius:999px;background:rgba(198,255,61,.12);color:var(--neon-a);margin-right:8px}

/* timeline */
.timeline{position:relative;max-width:920px}
.tl-item{position:relative;display:grid;grid-template-columns:64px 1fr;gap:22px;padding-bottom:34px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{content:"";position:absolute;left:31px;top:66px;bottom:2px;width:1px;background:linear-gradient(180deg,var(--line-strong),rgba(198,255,61,.05))}
.tl-item:last-child::before{display:none}
.tl-node{position:relative;z-index:2;width:64px;height:64px;border-radius:50%;display:grid;place-items:center;font-family:var(--font-num);font-size:17px;font-weight:800;color:var(--neon-a);background:var(--bg-2);border:1px solid var(--line-strong);letter-spacing:-.02em}
.tl-body{background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);padding:22px 24px;transition:var(--t)}
.tl-body:hover{border-color:var(--line-strong);transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.tl-body h3{font-size:19px;font-weight:600;margin-bottom:10px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.tl-body p{color:var(--text-2);font-size:15px}
.tl-meta{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:13px;color:var(--text-3)}
.tl-meta::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--neon-a)}
.badge-warm{font-size:12px;padding:2px 10px;border-radius:999px;color:#231000;background:var(--accent-warm);font-weight:700}
.badge-pink{font-size:12px;padding:2px 10px;border-radius:999px;color:var(--neon-b);background:rgba(255,61,154,.12);font-weight:600}

/* compare table */
.table-wrap{overflow-x:auto;border-radius:var(--r-card);border:1px solid var(--line)}
table.compare{width:100%;min-width:680px;border-collapse:collapse}
table.compare th,table.compare td{padding:16px 20px;text-align:left;font-size:15px;border-bottom:1px solid var(--line)}
table.compare thead th{background:var(--bg-3);color:var(--neon-a);font-size:14px;font-weight:600;letter-spacing:.04em;white-space:nowrap}
table.compare tbody td{color:var(--text-2)}
table.compare tbody td:first-child{color:var(--text-1);font-weight:600}
table.compare tbody tr:nth-child(even){background:rgba(255,255,255,.02)}
table.compare tbody tr:hover{background:rgba(198,255,61,.05)}
table.compare tbody tr:last-child td{border-bottom:none}

/* faq */
.faq-list{max-width:900px}
.faq-item{border:1px solid var(--line);border-left:1px solid var(--line);border-radius:var(--r-sm);background:var(--bg-1);margin-bottom:12px;overflow:hidden;transition:var(--t)}
.faq-item[open]{border-color:var(--line-strong);border-left:3px solid var(--neon-a);background:var(--bg-2)}
.faq-item summary{display:flex;align-items:center;gap:16px;min-height:56px;padding:16px 20px;cursor:pointer;list-style:none;font-size:17px;font-weight:600;transition:var(--t)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--neon-a)}
.faq-num{font-family:var(--font-num);font-size:14px;font-weight:800;color:var(--neon-a);letter-spacing:-.02em}
.faq-icon{margin-left:auto;flex-shrink:0;transition:var(--t);color:var(--text-3)}
.faq-item[open] .faq-icon{transform:rotate(45deg);color:var(--neon-a)}
.faq-body{padding:0 20px 20px 62px;font-size:15px;color:var(--text-2)}

/* cta band */
.cta-band{position:relative;background:var(--bg-1);padding:72px 0;border-top:1px solid var(--line);overflow:hidden}
.cta-band::before{content:"";position:absolute;left:0;right:0;top:0;height:2px;background:linear-gradient(90deg,var(--neon-a),var(--neon-b),var(--neon-a))}
.cta-band::after{content:"";position:absolute;right:-120px;top:-60px;width:380px;height:380px;background-image:linear-gradient(rgba(198,255,61,.12) 1px,transparent 1px),linear-gradient(90deg,rgba(198,255,61,.12) 1px,transparent 1px);background-size:32px 32px;mask-image:radial-gradient(circle at 70% 30%,#000,transparent 72%);-webkit-mask-image:radial-gradient(circle at 70% 30%,#000,transparent 72%);pointer-events:none}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.25fr .75fr;gap:40px;align-items:center}
.cta-inner h2{font-size:clamp(24px,3vw,36px);font-weight:800;line-height:1.3}
.cta-inner h2 em{font-style:normal;color:var(--neon-a)}
.cta-inner p{color:var(--text-2);margin-top:14px;font-size:15.5px;max-width:52ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}

/* footer */
.site-footer{background:var(--bg-0);border-top:1px solid var(--line);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;margin-bottom:16px}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:16px;color:var(--text-1)}
.footer-col p{font-size:14px;color:var(--text-2);max-width:34ch}
.footer-list li a{display:inline-block;padding:6px 0;font-size:14px;color:var(--text-2);transition:var(--t)}
.footer-list li a:hover{color:var(--neon-a);transform:translateX(2px)}
.footer-sign{margin-top:16px;font-size:13px;color:var(--text-3)}
.footer-bottom{display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;align-items:center;margin-top:48px;padding:24px 0;border-top:1px solid var(--line);font-size:13px;color:var(--text-3)}
.to-top{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--text-2);transition:var(--t)}
.to-top:hover{color:var(--neon-a)}

/* fab */
.fab{position:fixed;right:28px;bottom:32px;z-index:70;width:56px;height:56px;border-radius:50%;background:var(--neon-a);color:#0A0612;display:grid;place-items:center;box-shadow:0 0 24px rgba(198,255,61,.35);opacity:0;transform:scale(.9);pointer-events:none;transition:var(--t)}
.fab.is-show{opacity:1;transform:scale(1);pointer-events:auto}
.fab:hover{transform:scale(1.06);box-shadow:0 0 32px rgba(198,255,61,.5)}
.mobile-cta{position:fixed;left:0;right:0;bottom:0;z-index:70;display:none;align-items:center;justify-content:space-between;gap:12px;height:56px;padding:0 16px;background:rgba(19,11,34,.97);backdrop-filter:blur(12px);border-top:1px solid var(--line-strong);transform:translateY(100%);transition:var(--t)}
.mobile-cta.is-show{transform:translateY(0)}
.mobile-cta p{margin:0;font-size:13px;color:var(--text-2);line-height:1.4}
.mobile-cta .btn{min-height:40px;padding:0 16px;font-size:14px}

/* responsive */
@media (max-width:1279px){:root{--maxw:960px}}
@media (max-width:1023px){
  .main-nav,.nav-cta{display:none}
  .nav-toggle{display:grid}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .split{grid-template-columns:1fr;gap:28px}
  .cta-inner{grid-template-columns:1fr}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .float-card{right:12px;top:12px}
}
@media (max-width:767px){
  :root{--header-h:56px}
  body{padding-bottom:56px;font-size:15.5px}
  .container{padding:0 18px}
  .section{padding:60px 0}
  .hero{padding:44px 0 56px}
  .hero-sub{font-size:16px}
  .visual-frame img{aspect-ratio:16/9}
  .fab{display:none}
  .mobile-cta.is-show{display:flex}
  .tl-item{grid-template-columns:48px 1fr;gap:16px}
  .tl-node{width:48px;height:48px;font-size:15px}
  .tl-item::before{left:23px;top:50px}
  .tl-body{padding:18px}
  .faq-body{padding:0 18px 18px 18px}
  .footer-bottom{padding:20px 0}
}
@media (max-width:480px){
  h1{font-size:30px}
  .sec-title{font-size:23px}
  .hero-actions .btn,.cta-actions .btn{width:100%}
  .trust-num{font-size:22px}
  .footer-grid{grid-template-columns:1fr}
  .faq-item summary{font-size:16px;padding:14px 16px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: category3 */
:root{
  --bg-0:#0A0612;
  --bg-1:#130B22;
  --bg-2:#1B1030;
  --bg-3:#241640;
  --neon-a:#C6FF3D;
  --neon-b:#FF3D9A;
  --accent-warm:#FF8A3D;
  --line:rgba(198,255,61,.16);
  --line-strong:rgba(198,255,61,.42);
  --text-1:#F4F1FF;
  --text-2:#B4A9CE;
  --text-3:#7C718F;
  --ok:#33E1A1;
  --warn:#FFC24B;
  --err:#FF5A6E;
  --radius-card:16px;
  --radius-sm:12px;
  --radius-btn:10px;
  --shadow-card:inset 0 1px 0 var(--line), 0 18px 40px rgba(0,0,0,.45);
  --shadow-pop:inset 0 1px 0 var(--line), 0 18px 40px rgba(0,0,0,.5), 0 0 24px rgba(198,255,61,.22);
  --dur:200ms;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  --font-num:Inter,"SF Pro Display",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.9;
  letter-spacing:.01em;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color var(--dur) ease-out;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
h1{font-size:44px;line-height:1.25;font-weight:800;letter-spacing:.01em;}
h2{font-size:30px;line-height:1.3;font-weight:700;}
h3{font-size:20px;line-height:1.45;font-weight:600;}
p{color:var(--text-2);}
::selection{background:rgba(198,255,61,.28);color:var(--text-1);}
:focus-visible{outline:2px solid var(--neon-a);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
section{scroll-margin-top:80px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.16em;color:var(--neon-a);
  text-transform:uppercase;font-family:var(--font-num);
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--neon-a);display:inline-block;}
.section{padding:88px 0;}
.section--alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;}
.section-head p{max-width:620px;margin-top:12px;font-size:15px;}
.section-title{position:relative;padding-left:16px;}
.section-title::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;
  background:linear-gradient(180deg,var(--neon-a),var(--neon-b));
}

/* ===== 顶栏 ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,6,18,.82);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.site-header::after{
  content:"";display:block;height:1px;
  background:linear-gradient(90deg,rgba(198,255,61,0),var(--neon-a) 22%,var(--neon-b) 78%,rgba(255,61,154,0));
  opacity:.85;
}
.header-inner{display:flex;align-items:center;gap:28px;height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:18px;letter-spacing:.01em;}
.brand svg{width:28px;height:28px;flex:none;}
.brand span{transition:text-shadow var(--dur) ease-out,color var(--dur) ease-out;}
.brand:hover span{color:var(--neon-a);text-shadow:0 0 16px rgba(198,255,61,.45);}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:12px;}
.main-nav a{
  position:relative;padding:10px 14px;font-size:15px;font-weight:500;color:var(--text-2);border-radius:8px;
}
.main-nav a::before{
  content:"";position:absolute;left:2px;top:50%;transform:translateY(-50%) scale(0);
  width:4px;height:4px;border-radius:50%;background:var(--neon-a);transition:transform var(--dur) ease-out;
}
.main-nav a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;
  background:var(--neon-a);opacity:0;box-shadow:0 0 10px rgba(198,255,61,.7);
  transition:opacity var(--dur) ease-out;
}
.main-nav a:hover,.main-nav a.is-active{color:var(--neon-a);}
.main-nav a:hover::after,.main-nav a.is-active::after{opacity:1;}
.main-nav a:hover::before,.main-nav a.is-active::before{transform:translateY(-50%) scale(1);}
.header-cta{margin-left:auto;display:flex;align-items:center;gap:14px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform var(--dur) ease-out,box-shadow var(--dur) ease-out,background-color var(--dur) ease-out,color var(--dur) ease-out,border-color var(--dur) ease-out;
}
.btn-primary{background:var(--neon-a);color:#0A0612;}
.btn-primary:hover{background:#D4FF63;transform:translateY(-1px);box-shadow:0 0 22px rgba(198,255,61,.34);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--neon-a);}
.btn-ghost:hover{background:rgba(198,255,61,.08);box-shadow:0 0 18px rgba(198,255,61,.16);}
.btn-quiet{background:transparent;color:var(--text-2);padding:0;min-height:auto;}
.btn-quiet .arrow{transition:transform var(--dur) ease-out;}
.btn-quiet:hover{color:var(--neon-a);}
.btn-quiet:hover .arrow{transform:translateX(4px);}
.btn[disabled]{opacity:.4;cursor:not-allowed;box-shadow:none;transform:none;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--radius-sm);
  background:var(--bg-2);align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--neon-a);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--neon-a);}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.drawer{
  position:fixed;inset:0;z-index:80;background:rgba(10,6,18,.97);
  padding:88px 24px 40px;display:none;flex-direction:column;gap:6px;
}
.drawer.is-open{display:flex;animation:drawerIn 220ms ease-out;}
@keyframes drawerIn{from{opacity:0;transform:translateY(-10px);}to{opacity:1;transform:none;}}
.drawer a{
  font-size:18px;font-weight:600;padding:16px 4px;border-bottom:1px solid var(--line);color:var(--text-1);
  animation:itemIn 260ms ease-out both;
}
.drawer a:nth-child(2){animation-delay:40ms;}
.drawer a:nth-child(3){animation-delay:80ms;}
.drawer a:nth-child(4){animation-delay:120ms;}
.drawer a.is-active{color:var(--neon-a);}
@keyframes itemIn{from{opacity:0;transform:translateY(8px);}to{opacity:1;transform:none;}}
.drawer-close{
  position:absolute;top:18px;right:20px;width:44px;height:44px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:var(--bg-2);color:var(--neon-a);font-size:20px;cursor:pointer;
}

/* ===== Hero ===== */
.hero{position:relative;padding:72px 0 76px;overflow:hidden;}
.hero::before,.hero::after{content:"";position:absolute;border-radius:50%;filter:blur(30px);pointer-events:none;}
.hero::before{width:420px;height:420px;top:-160px;left:-120px;background:radial-gradient(circle,rgba(198,255,61,.14),transparent 68%);}
.hero::after{width:460px;height:460px;bottom:-220px;right:-140px;background:radial-gradient(circle,rgba(255,61,154,.13),transparent 68%);}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;}
.hero h1{margin:18px 0 16px;}
.hero h1 em{font-style:normal;color:var(--neon-a);}
.hero-lead{font-size:17px;line-height:1.9;max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.trust-bar{
  display:flex;flex-wrap:wrap;gap:12px;margin-top:32px;padding-top:24px;border-top:1px solid var(--line);
}
.trust-item{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--text-2);
  padding:7px 14px;border-radius:999px;background:rgba(198,255,61,.08);border:1px solid var(--line);
}
.trust-item b{font-family:var(--font-num);color:var(--neon-a);font-size:14px;letter-spacing:-.02em;}
.hero-visual{position:relative;}
.visual-frame{
  position:relative;border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line-strong);
  background:var(--bg-2);aspect-ratio:4/3;box-shadow:0 24px 60px rgba(0,0,0,.55);
}
.visual-frame img{width:100%;height:100%;object-fit:cover;}
.visual-grid{
  position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(198,255,61,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(198,255,61,.07) 1px,transparent 1px);
  background-size:48px 48px;
}
.visual-tag{
  position:absolute;top:16px;right:16px;padding:10px 14px;border-radius:var(--radius-sm);
  background:rgba(27,16,48,.9);border:1px solid var(--line-strong);backdrop-filter:blur(6px);
}
.visual-tag b{display:block;font-family:var(--font-num);font-size:22px;color:var(--neon-a);line-height:1.2;letter-spacing:-.02em;}
.visual-tag span{font-size:12px;color:var(--text-3);}

/* ===== 更新卡片区 ===== */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  display:flex;flex-direction:column;background:var(--bg-2);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform var(--dur) ease-out,box-shadow var(--dur) ease-out,border-color var(--dur) ease-out;
}
.news-card:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:var(--shadow-pop);}
.news-card--wide{grid-column:span 2;flex-direction:row;align-items:stretch;}
.news-card--wide .thumb{width:46%;flex:none;aspect-ratio:auto;}
.news-card--tall{grid-row:span 2;}
.news-card--tall .thumb{aspect-ratio:21/9;}
.thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-3);}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform 320ms ease-out;}
.news-card:hover .thumb img{transform:scale(1.04);}
.card-top-line{position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--neon-a),var(--neon-b));}
.card-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card-body h3{font-size:19px;}
.card-body p{font-size:14.5px;line-height:1.85;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.card-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:auto;padding-top:14px;border-top:1px solid var(--line);}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 11px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge--cat{background:rgba(198,255,61,.12);color:var(--neon-a);}
.badge--data{background:rgba(255,61,154,.12);color:var(--neon-b);}
.badge--warm{background:rgba(255,138,61,.14);color:var(--accent-warm);}
.meta-date{font-family:var(--font-num);font-size:13px;color:var(--text-3);letter-spacing:-.01em;}
.card-body .card-link{font-size:14px;font-weight:600;color:var(--neon-a);display:inline-flex;align-items:center;gap:6px;}
.card-body .card-link .arrow{transition:transform var(--dur) ease-out;}
.news-card:hover .card-link .arrow{transform:translateX(4px);}

/* ===== 对比表 ===== */
.table-wrap{
  border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;background:var(--bg-2);
  box-shadow:var(--shadow-card);
}
.compare-table{width:100%;border-collapse:collapse;font-size:15px;}
.compare-table th,.compare-table td{padding:18px 20px;text-align:left;border-bottom:1px solid var(--line);}
.compare-table thead th{
  font-size:14px;font-weight:600;color:var(--text-3);background:rgba(36,22,64,.6);letter-spacing:.04em;
}
.compare-table thead th.reco{color:var(--neon-a);}
.compare-table tbody tr:nth-child(even){background:rgba(36,22,64,.28);}
.compare-table tbody tr:last-child td{border-bottom:none;}
.compare-table td:first-child{color:var(--text-1);font-weight:600;}
.compare-table td{color:var(--text-2);}
.compare-table .dot-ok{color:var(--ok);}
.table-note{margin-top:16px;font-size:13.5px;color:var(--text-3);}

/* ===== 订阅表单 ===== */
.subscribe{
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:44px;box-shadow:var(--shadow-card);
}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:20px;}
.field label{font-size:13px;color:var(--text-2);}
.field input,.field select{
  height:46px;padding:0 14px;border-radius:var(--radius-sm);
  background:var(--bg-0);border:1px solid var(--line);color:var(--text-1);
  transition:border-color var(--dur) ease-out,box-shadow var(--dur) ease-out;
}
.field input::placeholder{color:var(--text-3);}
.field input:focus,.field select:focus{
  outline:none;border-color:var(--neon-a);box-shadow:0 0 0 3px rgba(198,255,61,.16);
}
.field .hint{font-size:12.5px;color:var(--text-3);}
.field.is-error input{border-color:var(--err);}
.field.is-error .hint{color:var(--err);}
.form-actions{margin-top:4px;}
.form-note{margin-top:14px;font-size:13px;color:var(--text-3);}
.rhythm-list li{
  display:flex;gap:16px;padding:16px 0;border-bottom:1px solid var(--line);font-size:14.5px;color:var(--text-2);
}
.rhythm-list li:last-child{border-bottom:none;}
.rhythm-list .num{
  font-family:var(--font-num);font-size:15px;font-weight:700;color:var(--neon-a);flex:none;letter-spacing:-.02em;min-width:34px;
}

/* ===== FAQ ===== */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  display:flex;align-items:center;gap:16px;padding:22px 4px;cursor:pointer;list-style:none;
  font-size:17px;font-weight:600;color:var(--text-1);min-height:48px;
  transition:background-color var(--dur) ease-out,padding-left var(--dur) ease-out;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .qnum{font-family:var(--font-num);font-size:14px;color:var(--neon-a);letter-spacing:-.01em;flex:none;}
.faq-item summary .plus{
  margin-left:auto;width:22px;height:22px;flex:none;position:relative;
}
.faq-item summary .plus::before,.faq-item summary .plus::after{
  content:"";position:absolute;background:var(--neon-a);border-radius:2px;transition:transform var(--dur) ease-out,opacity var(--dur) ease-out;
}
.faq-item summary .plus::before{left:0;right:0;top:10px;height:2px;}
.faq-item summary .plus::after{top:0;bottom:0;left:10px;width:2px;}
.faq-item[open] summary{background:rgba(198,255,61,.06);padding-left:14px;border-left:3px solid var(--neon-a);}
.faq-item[open] summary .plus::after{transform:scaleY(0);opacity:0;}
.faq-item .faq-answer{padding:0 4px 24px 42px;font-size:15px;line-height:1.9;color:var(--text-2);}

/* ===== CTA 带 ===== */
.cta-band{
  position:relative;background:var(--bg-1);border-top:1px solid var(--line-strong);overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--neon-a),var(--neon-b));
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:340px;height:340px;
  background-image:linear-gradient(rgba(198,255,61,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(198,255,61,.08) 1px,transparent 1px);
  background-size:36px 36px;transform:rotate(12deg);pointer-events:none;
}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:40px;padding:64px 0;}
.cta-inner h2{max-width:660px;}
.cta-inner p{margin-top:14px;max-width:620px;font-size:15.5px;}
.cta-actions{display:flex;flex-direction:column;gap:14px;flex:none;min-width:220px;}

/* ===== 页脚 ===== */
.site-footer{background:var(--bg-0);border-top:1px solid var(--line);padding-top:64px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;margin-bottom:14px;}
.footer-brand svg{width:26px;height:26px;}
.footer-slogan{font-size:14px;color:var(--text-2);max-width:320px;}
.footer-contact{margin-top:18px;font-size:14px;color:var(--text-2);}
.footer-contact b{color:var(--text-1);font-weight:600;}
.footer-col h4{font-size:14px;color:var(--text-1);margin-bottom:16px;letter-spacing:.04em;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:var(--text-2);display:inline-block;transition:color var(--dur) ease-out,transform var(--dur) ease-out;}
.footer-col a:hover{color:var(--neon-a);transform:translateX(2px);}
.footer-bottom{
  border-top:1px solid var(--line);padding:22px 0 30px;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--text-3);}
.to-top{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--text-2);
  padding:9px 16px;border:1px solid var(--line);border-radius:999px;background:var(--bg-2);
  transition:color var(--dur) ease-out,border-color var(--dur) ease-out;
}
.to-top:hover{color:var(--neon-a);border-color:var(--line-strong);}

/* ===== 浮动 CTA ===== */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:70;width:56px;height:56px;border-radius:50%;
  background:var(--neon-a);color:#0A0612;display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 0 26px rgba(198,255,61,.34);cursor:pointer;border:none;
  opacity:0;transform:scale(.9);pointer-events:none;
  transition:opacity var(--dur) ease-out,transform var(--dur) ease-out,box-shadow var(--dur) ease-out;
}
.float-cta.is-visible{opacity:1;transform:scale(1);pointer-events:auto;}
.float-cta:hover{transform:scale(1.06);box-shadow:0 0 34px rgba(198,255,61,.5);}
.mobile-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;height:56px;padding:0 16px;
  display:none;align-items:center;justify-content:space-between;gap:12px;
  background:rgba(19,11,34,.96);border-top:1px solid var(--line-strong);backdrop-filter:blur(10px);
  transform:translateY(100%);transition:transform var(--dur) ease-out;
}
.mobile-bar.is-visible{transform:none;}
.mobile-bar span{font-size:13px;color:var(--text-2);}
.mobile-bar .btn{min-height:38px;padding:0 16px;font-size:14px;}

/* ===== 响应式 ===== */
@media (max-width:1279px){
  .container{max-width:960px;}
  .hero-grid{gap:36px;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .news-card--wide{grid-column:span 2;flex-direction:column;}
  .news-card--wide .thumb{width:100%;aspect-ratio:21/9;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
}
@media (max-width:1023px){
  h1{font-size:38px;}
  .main-nav{display:none;}
  .header-cta .btn-primary{display:none;}
  .nav-toggle{display:inline-flex;}
  .hero-grid{grid-template-columns:1fr;}
  .hero-visual{order:-1;}
  .visual-frame{aspect-ratio:21/9;}
  .section{padding:72px 0;}
  .subscribe{grid-template-columns:1fr;gap:32px;padding:34px;}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:28px;}
  .cta-actions{min-width:0;flex-direction:row;flex-wrap:wrap;}
}
@media (max-width:767px){
  body{padding-bottom:76px;font-size:16px;}
  h1{font-size:32px;}
  h2{font-size:25px;}
  .container{padding:0 18px;}
  .section{padding:60px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .hero{padding:44px 0 56px;}
  .visual-frame{aspect-ratio:16/9;}
  .news-grid{grid-template-columns:1fr;}
  .news-card--wide,.news-card--tall{grid-column:auto;grid-row:auto;}
  .field-row{grid-template-columns:1fr;}
  .compare-table th,.compare-table td{padding:14px 14px;font-size:14px;}
  .table-wrap{overflow-x:auto;}
  .compare-table{min-width:620px;}
  .cta-actions{flex-direction:column;width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .float-cta{display:none;}
  .mobile-bar{display:flex;}
  .faq-item .faq-answer{padding-left:4px;}
  .faq-item summary{padding:18px 2px;font-size:16px;}
}
@media (max-width:520px){
  h1{font-size:28px;line-height:1.32;}
  h2{font-size:22px;}
  .hero-lead{font-size:15.5px;}
  .visual-frame{aspect-ratio:16/10;}
  .subscribe{padding:24px;gap:26px;}
  .footer-grid{grid-template-columns:1fr;}
  .trust-bar{gap:8px;}
  .trust-item{font-size:12.5px;padding:6px 12px;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important;}
}