/* roulang page: index */
:root{
  --ink-900:#05080F;
  --ink-800:#0A1020;
  --ink-700:#111A2E;
  --ink-600:#1A2540;
  --primary:#2EE6B0;
  --primary-600:#12B98C;
  --primary-soft:rgba(46,230,176,.14);
  --accent:#5B8CFF;
  --gold:#FFC24B;
  --gold-600:#E0A22C;
  --text-1:#E9F0FB;
  --text-2:#9FB0CC;
  --text-3:#67769A;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --danger:#FF6B6B;
  --success:#3DD68C;
  --warn:#FFB020;
  --radius-card:18px;
  --radius-panel:22px;
  --radius-btn:12px;
  --shadow-deep:0 24px 60px rgba(0,0,0,.45);
  --shadow-glow:0 0 32px var(--primary-soft);
  --sidebar-w:248px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text-1);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 背景装饰 ---------- */
.grid-bg::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);
  background-size:24px 24px;
}
.glow-orb{
  position:absolute;width:520px;height:520px;border-radius:50%;pointer-events:none;
  background:radial-gradient(circle,rgba(46,230,176,.14),transparent 68%);
  filter:blur(10px);
}

/* ---------- 玻璃 ---------- */
.glass{
  position:relative;
  background:linear-gradient(160deg,rgba(255,255,255,.08),rgba(255,255,255,.02));
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border:1px solid rgba(255,255,255,.10);
  box-shadow:var(--shadow-deep);
}
.glass::after{
  content:"";position:absolute;left:12px;right:12px;top:0;height:1px;border-radius:2px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.35),transparent);
  pointer-events:none;
}
.panel{background:var(--ink-800);border:1px solid var(--line);border-radius:var(--radius-panel);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,filter .2s ease,border-color .2s ease,background-color .2s ease;
}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-600));
  color:#04140F;box-shadow:0 10px 32px var(--primary-soft);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 16px 42px rgba(46,230,176,.28);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 18px var(--primary-soft);}
.btn-ghost{
  background:linear-gradient(160deg,rgba(255,255,255,.08),rgba(255,255,255,.02));
  color:var(--text-1);border-color:var(--line-strong);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
}
.btn-ghost:hover{border-color:rgba(46,230,176,.45);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-gold{
  background:linear-gradient(135deg,var(--gold),var(--gold-600));
  color:#231701;box-shadow:0 10px 32px rgba(255,194,75,.18);
}
.btn-gold:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 16px 42px rgba(255,194,75,.32);}
.btn-gold:active{transform:translateY(1px);}
.btn-block{width:100%;}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1.6;letter-spacing:.02em;
  border:1px solid transparent;white-space:nowrap;
}
.badge-accent{color:#BBD0FF;background:rgba(91,140,255,.14);border-color:rgba(91,140,255,.28);}
.badge-primary{color:#8CF0D3;background:var(--primary-soft);border-color:rgba(46,230,176,.28);}
.badge-gold{color:#FFDD9B;background:rgba(255,194,75,.14);border-color:rgba(255,194,75,.32);}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:13px;color:var(--text-2);
  background:rgba(255,255,255,.05);border:1px solid var(--line);
}
.pill i{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary);}

/* ---------- 侧栏导航 ---------- */
.sidebar{
  position:fixed;left:0;top:0;bottom:0;width:var(--sidebar-w);z-index:60;
  display:flex;flex-direction:column;
  background:rgba(8,12,24,.78);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  border-right:1px solid var(--line);
  padding:26px 18px 22px;
}
.sidebar::after{
  content:"";position:absolute;right:-1px;top:0;bottom:0;width:1px;
  background:linear-gradient(180deg,transparent,rgba(46,230,176,.35),transparent);
}
.brand{display:flex;align-items:center;gap:10px;padding:0 6px 24px;}
.brand-mark{width:38px;height:38px;flex:0 0 38px;}
.brand-name{font-size:17px;font-weight:700;letter-spacing:.01em;line-height:1.25;}
.brand-sub{display:block;font-size:11px;font-weight:400;color:var(--text-3);letter-spacing:.08em;}
.nav-list{display:flex;flex-direction:column;gap:4px;flex:1;overflow-y:auto;}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  padding:11px 12px;border-radius:12px;
  color:var(--text-2);font-size:14.5px;font-weight:500;
  transition:background-color .2s ease,color .2s ease;
}
.nav-item svg{width:20px;height:20px;flex:0 0 20px;stroke-width:1.5;}
.nav-item::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%) scaleY(0);
  width:3px;height:20px;border-radius:3px;background:var(--primary);
  box-shadow:0 0 12px var(--primary);transition:transform .2s ease;
}
.nav-item:hover{background:rgba(255,255,255,.04);color:var(--text-1);}
.nav-item:hover::before{transform:translateY(-50%) scaleY(1);}
.nav-item.active{background:rgba(255,255,255,.06);color:var(--text-1);}
.nav-item.active::before{transform:translateY(-50%) scaleY(1);}
.nav-item .count{
  margin-left:auto;font-size:12px;color:var(--text-3);
  font-variant-numeric:tabular-nums;
}
.side-foot{padding-top:18px;border-top:1px solid var(--line);margin-top:12px;}
.side-foot .tip{margin-top:10px;font-size:12px;color:var(--text-3);text-align:center;}

/* ---------- 移动端顶栏 ---------- */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:64px;z-index:70;
  align-items:center;justify-content:space-between;padding:0 18px;
  background:rgba(8,12,24,.9);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.topbar .brand{padding:0;}
.topbar .brand-name{font-size:15.5px;}
.hamburger{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line-strong);
  background:rgba(255,255,255,.04);display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:5px;cursor:pointer;
}
.hamburger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text-1);transition:transform .25s ease,opacity .2s ease;}
body.drawer-open .hamburger span:nth-child(1){transform:translateY(7px) rotate(45deg);}
body.drawer-open .hamburger span:nth-child(2){opacity:0;}
body.drawer-open .hamburger span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.drawer-mask{
  display:none;position:fixed;inset:0;z-index:55;
  background:rgba(2,4,10,.66);
  -webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);
}

/* ---------- 主体 ---------- */
.main{margin-left:var(--sidebar-w);}
.section{padding:96px 0;position:relative;}
.sec-head{max-width:720px;margin-bottom:44px;}
.sec-head h2{font-size:28px;display:flex;align-items:center;gap:12px;}
.sec-head h2::before{
  content:"";width:4px;height:24px;border-radius:3px;
  background:linear-gradient(180deg,var(--primary),var(--primary-600));
  box-shadow:0 0 14px var(--primary-soft);
}
.sec-head p{margin-top:12px;color:var(--text-2);font-size:15px;}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:44px;}
.sec-head-row .sec-head{margin-bottom:0;}
.more-link{color:var(--primary);font-size:14px;font-weight:600;position:relative;padding-left:0;transition:padding .2s ease;}
.more-link::after{content:"";position:absolute;left:0;bottom:-3px;width:0;height:2px;background:var(--primary);transition:width .25s ease;}
.more-link:hover::after{width:100%;}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;min-height:78vh;display:flex;align-items:center;
  padding:88px 0 72px;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.hero .veil{position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,8,15,.74),rgba(5,8,15,.94));}
.hero .grid-bg{position:absolute;inset:0;}
.hero .glow-orb{right:-140px;bottom:-180px;}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.35fr 1fr;gap:56px;align-items:center;width:100%;}
.hero-copy h1{font-size:clamp(30px,4.4vw,50px);line-height:1.16;letter-spacing:-.01em;font-weight:700;margin-top:20px;}
.hero-sub{margin-top:16px;font-size:16.5px;color:var(--text-2);max-width:520px;}
.hero-cta{display:flex;gap:14px;margin-top:32px;flex-wrap:wrap;}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:44px;
  padding-top:26px;border-top:1px solid var(--line);
}
.hero-stats b{display:block;font-size:24px;font-weight:700;color:var(--text-1);font-variant-numeric:tabular-nums;letter-spacing:-.01em;}
.hero-stats span{display:block;font-size:12.5px;color:var(--text-3);margin-top:4px;}

.hero-card{border-radius:var(--radius-panel);padding:28px;}
.hc-head{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.hc-price{font-size:26px;font-weight:700;color:var(--gold);font-variant-numeric:tabular-nums;}
.hc-price i{font-size:13px;font-style:normal;color:var(--text-3);font-weight:400;}
.hc-bar{margin-top:22px;height:8px;border-radius:999px;background:rgba(255,255,255,.07);overflow:hidden;}
.hc-bar span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--primary),var(--accent));box-shadow:0 0 16px var(--primary-soft);}
.hc-bar-label{margin-top:10px;font-size:12.5px;color:var(--text-3);}
.hc-list{margin-top:22px;display:flex;flex-direction:column;gap:12px;}
.hc-list li{display:flex;gap:10px;font-size:14.5px;color:var(--text-2);}
.hc-list svg{width:18px;height:18px;flex:0 0 18px;margin-top:3px;stroke-width:1.5;color:var(--primary);}
.hero-card .btn{margin-top:24px;}

/* ---------- 权益对比 ---------- */
.plan-wrap{overflow:hidden;border-radius:var(--radius-panel);border:1px solid var(--line);background:var(--ink-800);}
.plan-table{width:100%;border-collapse:collapse;font-size:14.5px;}
.plan-table th,.plan-table td{padding:16px 18px;text-align:left;border-bottom:1px solid var(--line);}
.plan-table thead th{
  font-size:14px;font-weight:700;color:var(--text-1);
  background:rgba(255,255,255,.02);
}
.plan-table thead th:first-child{color:var(--text-3);font-weight:500;}
.plan-table tbody tr:nth-child(even) td{background:rgba(255,255,255,.03);}
.plan-table td:first-child{color:var(--text-2);}
.plan-table td.cell{color:var(--text-1);font-variant-numeric:tabular-nums;}
.plan-table .col-rec{background:rgba(46,230,176,.07);}
.th-rec{position:relative;}
.th-rec .badge{position:absolute;top:-11px;left:18px;}
.plan-table svg{width:18px;height:18px;vertical-align:-4px;}
.ico-yes{color:var(--success);}
.ico-no{color:var(--text-3);}

.plan-cards{display:none;gap:18px;flex-direction:column;}
.plan-card{border-radius:var(--radius-panel);padding:24px;border:1px solid var(--line);background:var(--ink-800);}
.plan-card.rec{border-color:rgba(46,230,176,.35);box-shadow:0 0 32px var(--primary-soft);}
.plan-card .pc-top{display:flex;align-items:center;justify-content:space-between;}
.plan-card h3{font-size:18px;}
.plan-card dl{margin-top:18px;display:flex;flex-direction:column;gap:10px;}
.plan-card dl div{display:flex;justify-content:space-between;gap:16px;font-size:14px;padding-bottom:10px;border-bottom:1px dashed var(--line);}
.plan-card dt{color:var(--text-2);}
.plan-card dd{margin:0;color:var(--text-1);font-variant-numeric:tabular-nums;}

/* ---------- 等级轨道 ---------- */
.track{position:relative;padding:6px 0 0;}
.track-line{
  position:absolute;left:50%;top:0;bottom:0;width:2px;transform:translateX(-50%);
  background:linear-gradient(180deg,transparent,rgba(46,230,176,.6),rgba(91,140,255,.55),transparent);
}
.track-node{position:relative;width:50%;padding:0 56px 52px 0;}
.track-node.right{margin-left:50%;padding:0 0 52px 56px;}
.track-dot{
  position:absolute;right:-10px;top:26px;width:18px;height:18px;border-radius:50%;
  background:var(--ink-900);border:2px solid var(--primary);
  box-shadow:0 0 18px var(--primary);
}
.track-node.right .track-dot{left:-10px;right:auto;border-color:var(--accent);box-shadow:0 0 18px var(--accent);}
.track-node:nth-child(4) .track-dot{border-color:var(--gold);box-shadow:0 0 18px var(--gold);}
.track-card{border-radius:var(--radius-card);padding:24px;}
.track-card h3{margin-top:14px;font-size:19px;}
.track-card ul{margin-top:14px;display:flex;flex-direction:column;gap:9px;}
.track-card li{position:relative;padding-left:16px;font-size:14.5px;color:var(--text-2);}
.track-card li::before{
  content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:50%;
  background:var(--primary);opacity:.75;
}

/* ---------- 内容预览 ---------- */
.preview-grid{display:grid;grid-template-columns:1.6fr 1fr;gap:24px;}
.preview-big,.preview-sm{position:relative;display:block;overflow:hidden;border-radius:var(--radius-card);border:1px solid var(--line);}
.preview-big{min-height:340px;background:var(--ink-700);}
.preview-side{display:grid;gap:24px;}
.preview-sm{background:var(--ink-700);}
.preview-big img,.preview-sm img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/9;transition:transform .5s ease;}
.preview-big img{aspect-ratio:auto;height:100%;min-height:340px;}
.preview-big:hover img,.preview-sm:hover img{transform:scale(1.04);}
.preview-big::after,.preview-sm::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,8,15,.05) 30%,rgba(5,8,15,.92));
}
.preview-text{position:absolute;left:0;right:0;bottom:0;padding:22px;z-index:2;}
.preview-text h3{font-size:19px;margin-top:10px;}
.preview-text p{margin-top:8px;font-size:13.5px;color:var(--text-2);}
.preview-text.small h3{font-size:16px;}
.preview-list{margin-top:24px;display:flex;flex-direction:column;gap:14px;}
.preview-item{
  display:flex;align-items:center;gap:16px;padding:14px 18px;border-radius:var(--radius-card);
  border:1px solid var(--line);background:var(--ink-800);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.preview-item:hover{transform:translateY(-4px);border-color:rgba(255,255,255,.18);box-shadow:var(--shadow-glow);}
.preview-item img{width:96px;height:60px;object-fit:cover;border-radius:10px;flex:0 0 96px;}
.preview-item h4{font-size:15.5px;font-weight:600;}
.preview-item span{margin-left:auto;flex:0 0 auto;}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  display:flex;flex-direction:column;border-radius:var(--radius-card);overflow:hidden;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.news-card:hover{transform:translateY(-4px);border-color:rgba(255,255,255,.18);box-shadow:0 24px 60px rgba(0,0,0,.5),0 0 32px var(--primary-soft);}
.news-cover{aspect-ratio:16/9;overflow:hidden;background:linear-gradient(160deg,var(--ink-600),var(--ink-700));}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.news-card:hover .news-cover img{transform:scale(1.04);}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.news-body h3{
  margin-top:12px;font-size:16.5px;line-height:1.5;font-weight:600;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body p{
  margin-top:10px;font-size:14px;color:var(--text-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-time{margin-top:auto;padding-top:16px;font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums;}
.news-empty{
  border-radius:var(--radius-panel);padding:56px 28px;text-align:center;
  display:flex;flex-direction:column;align-items:center;gap:14px;
}
.news-empty svg{width:44px;height:44px;color:var(--text-3);stroke-width:1.5;}
.news-empty p{color:var(--text-2);font-size:15px;}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.faq-item{
  border-radius:var(--radius-card);border:1px solid var(--line);
  background:var(--ink-800);overflow:hidden;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item.open{border-color:rgba(46,230,176,.32);box-shadow:0 0 28px var(--primary-soft);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;background:none;border:0;cursor:pointer;
  color:var(--text-1);font-size:16px;font-weight:600;text-align:left;line-height:1.5;
}
.faq-q:focus-visible{outline:2px solid var(--primary);outline-offset:-2px;}
.faq-icon{
  flex:0 0 22px;width:22px;height:22px;color:var(--text-3);
  transition:transform .24s ease,color .24s ease;
}
.faq-item.open .faq-icon{transform:rotate(180deg);color:var(--primary);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease;}
.faq-a p{padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--text-2);border-top:1px solid var(--line);padding-top:16px;}

/* ---------- CTA ---------- */
.cta-band{
  border-radius:var(--radius-panel);padding:44px;
  display:grid;grid-template-columns:1.3fr 1fr;gap:48px;align-items:center;
  border:1px solid rgba(46,230,176,.22);
  box-shadow:0 24px 60px rgba(0,0,0,.45),0 0 42px rgba(46,230,176,.10);
}
.cta-band h2{font-size:27px;line-height:1.32;}
.cta-list{margin-top:22px;display:flex;flex-direction:column;gap:12px;}
.cta-list li{display:flex;gap:10px;font-size:15px;color:var(--text-2);}
.cta-list svg{width:18px;height:18px;flex:0 0 18px;margin-top:3px;color:var(--gold);stroke-width:1.6;}
.cta-form{
  border-radius:var(--radius-card);padding:26px;background:rgba(10,16,32,.72);
  border:1px solid var(--line);display:flex;flex-direction:column;gap:14px;
}
.field{position:relative;}
.field input{
  width:100%;padding:13px 16px;border-radius:var(--radius-btn);
  background:var(--ink-700);border:1px solid var(--line);color:var(--text-1);
  outline:none;transition:border-color .2s ease,box-shadow .2s ease;
}
.field input::placeholder{color:var(--text-3);}
.field input:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft);}
.form-note{font-size:12.5px;color:var(--text-3);text-align:center;margin-top:2px;}

/* ---------- 页脚 ---------- */
.site-footer{background:#04070D;border-top:1px solid var(--line);padding:64px 0 26px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;}
.footer-brand svg{width:34px;height:34px;flex:0 0 34px;}
.site-footer p.desc{margin-top:16px;font-size:14px;color:var(--text-2);max-width:320px;line-height:1.8;}
.site-footer h4{font-size:14.5px;margin-bottom:16px;color:var(--text-1);}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{
  position:relative;font-size:14px;color:var(--text-2);padding-left:0;
  transition:color .2s ease,padding-left .2s ease;
}
.footer-links a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:0;height:13px;border-radius:2px;background:var(--primary);transition:width .2s ease;
}
.footer-links a:hover{color:var(--primary);padding-left:10px;}
.footer-links a:hover::before{width:2px;}
.footer-bottom{
  margin-top:52px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--sidebar-w:216px;}
  .hero-inner{gap:40px;}
  .cta-band{gap:32px;padding:36px;}
}
@media (max-width:1023px){
  body{padding-top:64px;}
  .topbar{display:flex;}
  .sidebar{
    transform:translateX(-100%);transition:transform .3s ease;
    width:290px;padding-top:22px;
  }
  body.drawer-open .sidebar{transform:translateX(0);}
  body.drawer-open .drawer-mask{display:block;}
  body.drawer-open{overflow:hidden;}
  .main{margin-left:0;}
  .section{padding:72px 0;}
  .hero{min-height:auto;padding:56px 0 60px;}
  .hero-inner{grid-template-columns:1fr;gap:36px;}
  .hero-sub{max-width:none;}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:16px;}
  .plan-table{display:none;}
  .plan-cards{display:flex;}
  .plan-wrap{background:none;border:0;border-radius:0;}
  .preview-grid{grid-template-columns:1fr;}
  .preview-big{min-height:260px;}
  .preview-big img{min-height:260px;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .faq-grid{grid-template-columns:1fr;}
  .cta-band{grid-template-columns:1fr;padding:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .track-node,.track-node.right{width:100%;margin-left:0;padding:0 0 40px 44px;}
  .track-line{left:9px;transform:none;}
  .track-dot{left:-1px;right:auto;}
  .track-node.right .track-dot{left:-1px;}
}
@media (max-width:639px){
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .sec-head h2{font-size:23px;}
  .sec-head p{font-size:14.5px;}
  .hero-stats{grid-template-columns:repeat(2,1fr);}
  .hero-stats b{font-size:21px;}
  .news-grid{grid-template-columns:1fr;}
  .preview-item{flex-wrap:wrap;}
  .preview-item span{margin-left:0;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-band h2{font-size:22px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category1 */
:root{
  --ink-900:#05080F; --ink-800:#0A1020; --ink-700:#111A2E; --ink-600:#1A2540;
  --primary:#2EE6B0; --primary-600:#12B98C; --primary-soft:rgba(46,230,176,.14);
  --accent:#5B8CFF; --gold:#FFC24B; --gold-600:#E0A22C;
  --text-1:#E9F0FB; --text-2:#9FB0CC; --text-3:#67769A;
  --line:rgba(255,255,255,.08); --line-strong:rgba(255,255,255,.14);
  --danger:#FF6B6B; --success:#3DD68C; --warn:#FFB020;
  --r-card:18px; --r-panel:22px; --r-btn:12px;
  --shadow-deep:0 24px 60px rgba(0,0,0,.45);
  --glass:linear-gradient(160deg,rgba(255,255,255,.08),rgba(255,255,255,.02));
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--ink-900);color:var(--text-1);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);
  background-size:24px 24px;
}
body.lock{overflow:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.3}
p{margin:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:8px}
.skip-link{position:absolute;left:-9999px;top:0;z-index:200;background:var(--ink-700);padding:10px 16px;border-radius:0 0 12px 0}
.skip-link:focus{left:0}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.hero-wrap{max-width:1320px}

/* ---------- 移动端顶部栏 ---------- */
.topbar{
  position:sticky;top:0;z-index:70;height:64px;display:flex;align-items:center;justify-content:space-between;
  padding:0 16px;background:rgba(8,12,24,.92);border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.brand-mark{width:34px;height:34px;flex:0 0 auto}
.brand-name{font-size:16px;font-weight:700;letter-spacing:.01em;display:flex;flex-direction:column;line-height:1.25}
.brand-sub{font-size:11px;font-weight:500;color:var(--text-3);letter-spacing:.06em}
.hamburger{
  display:flex;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;padding:0 11px;border-radius:12px;cursor:pointer;
  background:var(--glass);border:1px solid var(--line-strong);
}
.hamburger span{display:block;height:2px;border-radius:2px;background:var(--text-1);transition:transform .2s ease,opacity .2s ease}
.hamburger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger[aria-expanded="true"] span:nth-child(2){opacity:0}
.hamburger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- 左侧竖向导航 ---------- */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:280px;z-index:90;
  display:flex;flex-direction:column;gap:22px;padding:22px 18px;
  background:rgba(8,12,24,.96);border-right:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  transform:translateX(-102%);transition:transform .26s ease;
}
.sidebar.is-open{transform:none}
.side-brand{display:flex;align-items:center;gap:10px;padding:6px 6px 16px;border-bottom:1px solid var(--line)}
.side-brand svg{width:34px;height:34px;flex:0 0 auto}
.side-brand .name{font-size:17px;font-weight:700;line-height:1.3}
.side-brand .sub{display:block;font-size:11px;font-weight:500;color:var(--text-3);letter-spacing:.06em}
.side-close{margin-left:auto;background:none;border:1px solid var(--line);border-radius:10px;width:32px;height:32px;cursor:pointer;color:var(--text-2);line-height:1}
.side-nav{display:flex;flex-direction:column;gap:6px}
.side-link{
  position:relative;display:flex;align-items:center;gap:10px;padding:11px 12px;border-radius:12px;
  font-size:15px;color:var(--text-2);transition:background .18s ease,color .18s ease;
}
.side-link svg{width:20px;height:20px;flex:0 0 auto;stroke:currentColor;fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.side-link::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:0;border-radius:3px;background:var(--primary);
  box-shadow:0 0 12px var(--primary);transition:height .2s ease;
}
.side-link:hover{background:rgba(255,255,255,.04);color:var(--text-1)}
.side-link:hover::before{height:18px}
.side-link.is-active{background:rgba(255,255,255,.06);color:var(--text-1)}
.side-link.is-active::before{height:24px}
.side-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px}
.side-foot p{font-size:13px;color:var(--text-3);line-height:1.5}
.scrim{
  position:fixed;inset:0;z-index:80;background:rgba(3,6,12,.66);
  opacity:0;visibility:hidden;transition:opacity .24s ease;backdrop-filter:blur(2px);
}
.scrim.is-open{opacity:1;visibility:visible}

/* ---------- 内容壳层 ---------- */
.shell{position:relative;z-index:1}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;padding:13px 22px;border-radius:var(--r-btn);
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,filter .18s ease,border-color .18s ease,color .18s ease;
}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-600));color:#04170F;box-shadow:0 10px 32px var(--primary-soft)}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 16px 44px var(--primary-soft)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 18px var(--primary-soft)}
.btn-ghost{background:var(--glass);border-color:var(--line-strong);color:var(--text-1)}
.btn-ghost:hover{border-color:rgba(46,230,176,.42);color:#fff;transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-gold{background:linear-gradient(135deg,var(--gold),var(--gold-600));color:#1A1204;box-shadow:0 10px 32px rgba(255,194,75,.18)}
.btn-gold:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 16px 44px rgba(255,194,75,.28)}
.btn-gold:active{transform:translateY(1px);box-shadow:0 6px 18px rgba(255,194,75,.2)}
.btn-block{width:100%}
.btn[disabled]{opacity:.45;box-shadow:none;cursor:not-allowed}

.badge{
  display:inline-flex;align-items:center;gap:6px;padding:4px 11px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.02em;line-height:1.6;
}
.badge-accent{background:rgba(91,140,255,.14);color:#9DB8FF;border:1px solid rgba(91,140,255,.28)}
.badge-primary{background:var(--primary-soft);color:var(--primary);border:1px solid rgba(46,230,176,.3)}
.badge-gold{background:rgba(255,194,75,.14);color:var(--gold);border:1px solid rgba(255,194,75,.32)}

.glass{
  background:var(--glass);border:1px solid rgba(255,255,255,.10);border-radius:var(--r-card);
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-deep),inset 0 1px 0 rgba(255,255,255,.06);
}
.panel{background:var(--ink-800);border:1px solid var(--line);border-radius:var(--r-panel)}
.panel-2{background:var(--ink-700);border:1px solid var(--line);border-radius:var(--r-card)}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);padding:20px 0 0}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--primary)}
.crumb li{display:flex;align-items:center;gap:8px}
.crumb li+li::before{content:"/";color:var(--text-3)}

/* ---------- Hero ---------- */
.cat-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.cat-hero__bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.cat-hero__bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(5,8,15,.94) 0%,rgba(5,8,15,.82) 46%,rgba(5,8,15,.6) 100%);
}
.cat-hero__glow{
  position:absolute;right:-140px;bottom:-180px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(46,230,176,.16),transparent 62%);pointer-events:none;
}
.cat-hero__inner{position:relative;padding:48px 0 64px;max-width:880px}
.cat-hero h1{font-size:clamp(30px,4.6vw,52px);font-weight:700;letter-spacing:-.01em;line-height:1.15;margin:16px 0 0}
.cat-hero h1 em{font-style:normal;color:var(--primary)}
.cat-hero .lede{margin-top:16px;font-size:16px;color:var(--text-2);line-height:1.85;max-width:760px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:34px;max-width:620px}
.hero-stats div{padding:14px 16px;border-radius:14px;background:rgba(10,16,32,.66);border:1px solid var(--line)}
.hero-stats .num{font-size:24px;font-weight:700;color:var(--text-1);font-variant-numeric:tabular-nums;line-height:1.2}
.hero-stats .lbl{font-size:13px;color:var(--text-3);margin-top:4px}

/* ---------- 分类主体 ---------- */
.cat-main{padding:56px 0 8px}
.cat-wrap{display:grid;grid-template-columns:1fr;gap:28px}
.cat-dir{display:none}
.cat-flow{display:flex;flex-direction:column;gap:40px;min-width:0}
.section{padding:0}
.section-head{display:flex;align-items:flex-start;gap:14px;margin-bottom:18px}
.section-head .bar{width:4px;height:26px;border-radius:3px;background:var(--primary);box-shadow:0 0 14px var(--primary-soft);flex:0 0 auto;margin-top:4px}
.section-head h2{font-size:clamp(22px,2.4vw,28px);font-weight:700;letter-spacing:-.01em}
.section-head p{font-size:15px;color:var(--text-2);margin-top:8px;max-width:760px;line-height:1.8}
.article-panel{background:var(--ink-800);border:1px solid var(--line);border-radius:var(--r-panel);padding:32px}
.article-panel p{color:var(--text-2);line-height:1.95}
.article-panel p+p{margin-top:14px}
.lead{font-size:17px;color:var(--text-1)!important}
.section p.body{color:var(--text-2);line-height:1.9}
.section p.body+p.body{margin-top:12px}

.callout{
  display:flex;gap:12px;margin-top:20px;padding:16px 18px;border-radius:14px;
  background:rgba(46,230,176,.07);border:1px solid rgba(46,230,176,.22);
}
.callout svg{width:20px;height:20px;flex:0 0 auto;stroke:var(--primary);fill:none;stroke-width:1.5;margin-top:3px}
.callout p{font-size:14px;color:var(--text-2);line-height:1.8}
.callout strong{color:var(--text-1)}

.grid-3{display:grid;grid-template-columns:1fr;gap:20px;margin-top:22px}
.grid-2{display:grid;grid-template-columns:1fr;gap:20px;margin-top:22px}
.grid-4{display:grid;grid-template-columns:1fr;gap:16px;margin-top:22px}

.level-card{position:relative;display:flex;flex-direction:column;padding:26px 22px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid rgba(255,255,255,.10);backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-deep),inset 0 1px 0 rgba(255,255,255,.06);transition:transform .2s ease,border-color .2s ease;
}
.level-card:hover{transform:translateY(-4px);border-color:rgba(255,255,255,.18)}
.level-card.featured{border-color:rgba(255,194,75,.4);box-shadow:var(--shadow-deep),0 0 32px rgba(255,194,75,.12)}
.level-card.featured::before{content:"";position:absolute;left:18px;right:18px;top:0;height:3px;border-radius:0 0 4px 4px;background:linear-gradient(90deg,var(--gold),var(--gold-600))}
.level-card h3{font-size:20px;font-weight:600;margin-top:10px}
.level-card .price{margin-top:6px;font-size:15px;color:var(--gold);font-weight:600;font-variant-numeric:tabular-nums}
.level-card .desc{margin-top:10px;font-size:14px;color:var(--text-2);line-height:1.75}
.tick-list{margin:18px 0 22px;display:flex;flex-direction:column;gap:10px}
.tick-list li{display:flex;gap:9px;font-size:14px;color:var(--text-1);line-height:1.7}
.tick-list svg{width:18px;height:18px;flex:0 0 auto;margin-top:4px}
.tick-list .ok svg{stroke:var(--primary);fill:none;stroke-width:1.8}
.tick-list .no{color:var(--text-3)}
.tick-list .no svg{stroke:var(--text-3);fill:none;stroke-width:1.8}
.level-card .btn{margin-top:auto}

.scene-card{padding:22px;border-radius:var(--r-card);background:var(--ink-700);border:1px solid var(--line);transition:transform .2s ease,border-color .2s ease,background .2s ease}
.scene-card:hover{transform:translateY(-4px);border-color:rgba(46,230,176,.32);background:var(--ink-600)}
.scene-card .ic{width:38px;height:38px;border-radius:11px;display:flex;align-items:center;justify-content:center;background:rgba(91,140,255,.14);border:1px solid rgba(91,140,255,.26)}
.scene-card .ic svg{width:20px;height:20px;stroke:var(--accent);fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.scene-card h3{font-size:17px;font-weight:600;margin-top:14px}
.scene-card p{font-size:14px;color:var(--text-2);line-height:1.8;margin-top:8px}

.steps{display:grid;grid-template-columns:1fr;gap:16px;margin-top:22px;counter-reset:step}
.step{position:relative;padding:20px 20px 20px 62px;border-radius:16px;background:var(--ink-800);border:1px solid var(--line)}
.step::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  position:absolute;left:18px;top:20px;font-size:14px;font-weight:700;color:var(--primary);
  font-variant-numeric:tabular-nums;letter-spacing:.04em;
}
.step h3{font-size:16px;font-weight:600}
.step p{font-size:14px;color:var(--text-2);line-height:1.8;margin-top:6px}

.detail-list{margin-top:22px;display:flex;flex-direction:column;gap:14px;counter-reset:detail}
.detail-item{display:grid;grid-template-columns:40px minmax(0,1fr);gap:14px;padding:20px;border-radius:16px;background:var(--ink-800);border:1px solid var(--line);transition:border-color .2s ease,transform .2s ease}
.detail-item:hover{border-color:rgba(255,255,255,.18);transform:translateX(3px)}
.detail-item .idx{
  counter-increment:detail;width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(46,230,176,.1);border:1px solid rgba(46,230,176,.26);color:var(--primary);font-size:14px;font-weight:700;
  font-variant-numeric:tabular-nums;
}
.detail-item .idx::before{content:"0" counter(detail)}
.detail-item h3{font-size:16px;font-weight:600}
.detail-item p{font-size:14px;color:var(--text-2);line-height:1.8;margin-top:6px}
.detail-item .more{display:inline-flex;align-items:center;gap:6px;margin-top:10px;font-size:13px;color:var(--primary)}
.detail-item .more:hover{text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:4px}

.figure{margin-top:22px;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);background:var(--ink-800)}
.figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.figure figcaption{padding:12px 16px;font-size:13px;color:var(--text-3)}

/* FAQ */
.faq-grid{display:grid;grid-template-columns:1fr;gap:14px;margin-top:22px}
.faq-item{border-radius:16px;background:var(--ink-800);border:1px solid var(--line);overflow:hidden;transition:border-color .2s ease}
.faq-item.is-open{border-color:rgba(46,230,176,.3)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:18px 20px;background:none;border:0;text-align:left;cursor:pointer;font-size:16px;font-weight:600;color:var(--text-1);
}
.faq-q:hover{color:var(--primary)}
.faq-q .chev{width:20px;height:20px;flex:0 0 auto;stroke:var(--text-2);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;transition:transform .24s ease}
.faq-item.is-open .chev{transform:rotate(180deg);stroke:var(--primary)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
.faq-a .inner{padding:0 20px 18px;border-top:1px solid var(--line);padding-top:16px;font-size:15px;color:var(--text-2);line-height:1.8}

/* CTA */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-panel);padding:34px 28px;margin-top:22px;
  background:var(--glass);border:1px solid rgba(46,230,176,.24);
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-deep),0 0 32px var(--primary-soft);
  display:grid;grid-template-columns:1fr;gap:26px;
}
.cta-band h2{font-size:clamp(22px,2.6vw,28px);font-weight:700}
.cta-band .sub{font-size:15px;color:var(--text-2);margin-top:10px;line-height:1.8}
.cta-list{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.cta-list li{display:flex;gap:9px;font-size:14px;color:var(--text-1)}
.cta-list svg{width:18px;height:18px;flex:0 0 auto;margin-top:4px;stroke:var(--gold);fill:none;stroke-width:1.8}
.form-card{padding:22px;border-radius:var(--r-card);background:rgba(10,16,32,.78);border:1px solid var(--line)}
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;color:var(--text-2);margin-bottom:8px}
.field input{
  width:100%;padding:13px 14px;border-radius:12px;background:var(--ink-700);
  border:1px solid var(--line);color:var(--text-1);transition:border-color .18s ease,box-shadow .18s ease;
}
.field input::placeholder{color:var(--text-3)}
.field input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft)}
.form-tip{font-size:13px;color:var(--text-3);margin-top:12px;line-height:1.7}

/* 页脚 */
.site-footer{position:relative;z-index:1;margin-top:72px;background:#04070D;border-top:1px solid var(--line);padding:56px 0 22px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700}
.footer-brand svg{width:34px;height:34px}
.site-footer .desc{margin-top:14px;font-size:14px;color:var(--text-2);line-height:1.85;max-width:340px}
.site-footer h4{font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:14px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{position:relative;font-size:14px;color:var(--text-2);padding-left:0;transition:color .18s ease,padding-left .18s ease}
.footer-links a::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:2px;height:0;background:var(--primary);border-radius:2px;transition:height .18s ease}
.footer-links a:hover{color:var(--primary);padding-left:10px}
.footer-links a:hover::before{height:14px}
.footer-bottom{display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;margin-top:40px;padding-top:18px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3)}

/* 断点 */
@media (min-width:640px){
  .grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (min-width:768px){
  .grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
  .cta-band{grid-template-columns:1.15fr .85fr;align-items:center;padding:40px 36px}
}
@media (min-width:1024px){
  .topbar{display:none}
  .scrim{display:none}
  .sidebar{width:216px;transform:none;z-index:50}
  .side-close{display:none}
  .shell{padding-left:216px}
  .cat-main{padding:64px 0 12px}
  .cat-wrap{grid-template-columns:200px minmax(0,1fr);gap:36px}
  .cat-dir{display:block;position:sticky;top:32px;align-self:start}
  .dir-title{font-size:13px;color:var(--text-3);letter-spacing:.08em;margin-bottom:14px}
  .dir-list{display:flex;flex-direction:column;gap:2px;border-left:1px solid var(--line)}
  .dir-list a{position:relative;display:block;padding:9px 0 9px 16px;font-size:14px;color:var(--text-2);transition:color .18s ease,padding-left .18s ease}
  .dir-list a::before{content:"";position:absolute;left:-1px;top:50%;transform:translateY(-50%);width:2px;height:0;background:var(--primary);box-shadow:0 0 10px var(--primary);transition:height .2s ease}
  .dir-list a:hover{color:var(--text-1)}
  .dir-list a.is-active{color:var(--primary);padding-left:18px}
  .dir-list a.is-active::before{height:20px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr}
}
@media (min-width:1280px){
  .sidebar{width:248px}
  .shell{padding-left:248px}
  .cat-wrap{grid-template-columns:220px minmax(0,1fr);gap:44px}
  .grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
  .grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(4,minmax(0,1fr))}
}
@media (max-width:1023px){
  .glass,.level-card,.cta-band{backdrop-filter:none;background:var(--ink-800)}
  .sidebar{backdrop-filter:none;background:#070B16}
}
@media (max-width:520px){
  .hero-stats{grid-template-columns:1fr 1fr;gap:12px}
  .article-panel{padding:22px 18px}
  .cat-hero__inner{padding:36px 0 48px}
  .btn{width:100%}
  .hero-actions .btn{width:auto;flex:1 1 auto}
}

/* roulang page: article */
:root{
  --ink-900:#05080F;
  --ink-800:#0A1020;
  --ink-700:#111A2E;
  --ink-600:#1A2540;
  --primary:#2EE6B0;
  --primary-600:#12B98C;
  --primary-soft:rgba(46,230,176,.14);
  --accent:#5B8CFF;
  --gold:#FFC24B;
  --gold-600:#E0A22C;
  --text-1:#E9F0FB;
  --text-2:#9FB0CC;
  --text-3:#67769A;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --danger:#FF6B6B;
  --success:#3DD68C;
  --warn:#FFB020;
  --r-card:18px;
  --r-panel:22px;
  --r-btn:12px;
  --shadow-deep:0 24px 60px rgba(0,0,0,.45);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text-1);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);
  background-size:24px 24px;
}
body::after{
  content:"";position:fixed;width:620px;height:620px;right:-180px;top:-160px;z-index:0;pointer-events:none;
  background:radial-gradient(circle,rgba(46,230,176,.13),transparent 66%);
}
img{max-width:100%;display:block;object-fit:cover}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0}
ul,ol{padding-left:0;margin:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--ink-700);padding:10px 16px;border-radius:0 0 12px 0;z-index:200}
.skip-link:focus{left:0}

/* ============ 左侧竖向导航 ============ */
.sidebar{
  position:fixed;left:0;top:0;bottom:0;width:248px;z-index:90;
  display:flex;flex-direction:column;
  background:rgba(8,12,24,.82);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  transition:transform .3s ease;
}
.sidebar::after{
  content:"";position:absolute;right:0;top:0;bottom:0;width:1px;
  background:linear-gradient(180deg,transparent,rgba(46,230,176,.30),transparent);
}
.side-brand{
  display:flex;align-items:flex-start;justify-content:space-between;
  padding:22px 20px 18px;
}
.brand{display:flex;align-items:center;gap:10px}
.brand-mark{width:36px;height:36px;flex:none}
.brand-name{display:flex;flex-direction:column;font-size:17px;font-weight:700;letter-spacing:-.01em;line-height:1.25}
.brand-sub{font-size:11px;font-weight:400;color:var(--text-3);letter-spacing:.04em;margin-top:3px}
.drawer-close{
  display:none;width:32px;height:32px;border-radius:10px;border:1px solid var(--line);
  color:var(--text-2);font-size:18px;line-height:1;cursor:pointer;
}
.side-nav{display:flex;flex-direction:column;gap:4px;padding:8px 12px;flex:1;overflow-y:auto}
.nav-item{
  position:relative;display:flex;align-items:center;gap:10px;
  padding:11px 14px;border-radius:12px;font-size:15px;color:var(--text-2);
  transition:background .2s ease,color .2s ease;
}
.nav-item svg{width:20px;height:20px;flex:none;stroke:currentColor;fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.nav-item::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:0;border-radius:0 3px 3px 0;background:var(--primary);
  box-shadow:0 0 12px var(--primary);transition:height .22s ease;
}
.nav-item:hover{background:rgba(255,255,255,.04);color:var(--text-1)}
.nav-item:hover::before{height:52%}
.nav-item.active{background:rgba(255,255,255,.06);color:var(--text-1);font-weight:600}
.nav-item.active::before{height:62%}
.side-foot{padding:16px 16px 22px;border-top:1px solid var(--line)}
.side-foot .btn{width:100%}
.side-note{margin-top:10px;font-size:12px;line-height:1.6;color:var(--text-3)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(2,4,9,.66);z-index:80;
  opacity:0;visibility:hidden;transition:opacity .3s ease;backdrop-filter:blur(2px);
}

/* ============ 移动端顶栏 ============ */
.topbar{
  display:none;position:fixed;left:0;right:0;top:0;height:64px;z-index:95;
  align-items:center;justify-content:space-between;padding:0 16px;
  background:rgba(6,10,20,.92);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.topbar .brand-name{font-size:15px}
.topbar .brand-sub{font-size:10px}
.hamburger{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  display:inline-flex;flex-direction:column;justify-content:center;align-items:center;gap:4px;cursor:pointer;
  transition:border-color .2s ease,background .2s ease;
}
.hamburger span{display:block;width:18px;height:1.6px;background:var(--text-1);border-radius:2px;transition:transform .25s ease,opacity .25s ease}
.hamburger:hover{border-color:rgba(46,230,176,.45);background:rgba(255,255,255,.03)}
body.drawer-open .hamburger span:nth-child(1){transform:translateY(5.6px) rotate(45deg)}
body.drawer-open .hamburger span:nth-child(2){opacity:0}
body.drawer-open .hamburger span:nth-child(3){transform:translateY(-5.6px) rotate(-45deg)}

/* ============ 布局 ============ */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
main{position:relative;z-index:1}
.page-wrap{padding:34px 0 96px}

.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:16px}
.breadcrumb a{transition:color .2s ease}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:var(--line-strong)}
.breadcrumb .current{color:var(--text-2);max-width:60vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.article-hero{
  position:relative;overflow:hidden;border-radius:var(--r-panel);
  border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(5,8,15,.74),rgba(5,8,15,.94)),url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  padding:36px 34px 32px;
  box-shadow:var(--shadow-deep);
}
.article-hero::after{
  content:"";position:absolute;right:-80px;bottom:-120px;width:360px;height:360px;
  background:radial-gradient(circle,rgba(46,230,176,.16),transparent 68%);pointer-events:none;
}
.hero-badges{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge-primary{background:var(--primary-soft);color:var(--primary);border:1px solid rgba(46,230,176,.28)}
.badge-accent{background:rgba(91,140,255,.14);color:#9DB8FF;border:1px solid rgba(91,140,255,.3)}
.badge-gold{background:rgba(255,194,75,.14);color:var(--gold);border:1px solid rgba(255,194,75,.3)}
.article-hero h1{
  font-size:clamp(27px,3.6vw,42px);line-height:1.22;font-weight:700;letter-spacing:-.01em;
  max-width:900px;position:relative;z-index:1;
}
.meta-row{
  position:relative;z-index:1;
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:18px;font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums;
}
.meta-row .dot{color:var(--line-strong)}

.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:32px;margin-top:28px}
.article-panel{
  background:var(--ink-800);
  border:1px solid var(--line);
  border-radius:var(--r-panel);
  padding:40px;
  box-shadow:var(--shadow-deep);
}
.article-body{max-width:800px}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.2em;font-size:17px;line-height:1.95;color:#D6E1F2}
.article-body > p:first-of-type{font-size:18px;line-height:1.9;color:#EAF3FF}
.article-body h2{
  position:relative;padding-left:16px;margin:2em 0 .8em;
  font-size:24px;line-height:1.35;font-weight:700;color:var(--text-1);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.26em;width:4px;height:.92em;border-radius:2px;
  background:linear-gradient(180deg,var(--primary),var(--primary-600));
  box-shadow:0 0 14px var(--primary-soft);
}
.article-body h3{margin:1.6em 0 .6em;font-size:20px;line-height:1.4;font-weight:600;color:var(--text-1)}
.article-body h4{margin:1.4em 0 .5em;font-size:17px;font-weight:600;color:var(--text-1)}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:1.35em;color:#D6E1F2}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:.5em 0;font-size:16.5px;line-height:1.85}
.article-body li::marker{color:var(--primary)}
.article-body blockquote{
  margin:1.5em 0;padding:16px 22px;
  border-left:3px solid var(--primary);
  background:rgba(46,230,176,.06);
  border-radius:0 14px 14px 0;
  color:var(--text-2);font-size:16px;line-height:1.85;
}
.article-body blockquote p{color:var(--text-2);font-size:16px;margin:0}
.article-body img{border-radius:14px;margin:1.7em 0 .6em;width:100%;height:auto}
.article-body figure{margin:1.7em 0}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:8px}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(46,230,176,.4);transition:border-color .2s ease,color .2s ease}
.article-body a:hover{border-bottom-color:var(--primary)}
.article-body table{
  width:100%;display:block;overflow-x:auto;margin:1.6em 0;border-collapse:collapse;
  border:1px solid var(--line);border-radius:14px;font-size:15px;
}
.article-body th,.article-body td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap}
.article-body th{background:var(--ink-700);color:var(--text-1);font-weight:600}
.article-body tr:last-child td{border-bottom:0}
.article-body hr{border:0;height:1px;background:var(--line);margin:2.2em 0}
.article-body code{
  background:var(--ink-700);border:1px solid var(--line);border-radius:6px;
  padding:2px 6px;font-size:14px;color:var(--primary);
}

.empty-state{
  display:flex;flex-direction:column;align-items:center;text-align:center;gap:14px;
  padding:56px 20px;
}
.empty-state svg{width:52px;height:52px;stroke:var(--text-3);fill:none;stroke-width:1.5}
.empty-state h2{font-size:20px;font-weight:600}
.empty-state p{font-size:15px;color:var(--text-2);max-width:420px}

.tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:36px;padding-top:24px;border-top:1px solid var(--line)}
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;
  font-size:13px;color:var(--text-2);border:1px solid var(--line);background:rgba(255,255,255,.03);
  transition:color .2s ease,border-color .2s ease,transform .2s ease;
}
.tag:hover{color:var(--primary);border-color:rgba(46,230,176,.42);transform:translateY(-1px)}

/* ============ 右侧粘性侧栏 ============ */
.article-side{position:relative}
.side-sticky{position:sticky;top:26px;display:grid;gap:20px}
.glass{
  background:linear-gradient(160deg,rgba(255,255,255,.08),rgba(255,255,255,.02));
  border:1px solid rgba(255,255,255,.10);
  border-radius:var(--r-card);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.side-card{padding:20px}
.side-title{
  display:flex;align-items:center;gap:8px;font-size:14px;font-weight:600;
  letter-spacing:.04em;color:var(--text-2);margin-bottom:14px;
}
.side-title::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--primary);box-shadow:0 0 10px var(--primary-soft)}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:44vh;overflow-y:auto}
.toc-link{
  position:relative;display:block;padding:7px 10px 7px 14px;border-radius:8px;
  font-size:14px;line-height:1.55;color:var(--text-2);
  transition:color .2s ease,background .2s ease;
}
.toc-link::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:2px;height:0;border-radius:2px;background:var(--primary);transition:height .2s ease;
}
.toc-link:hover{color:var(--text-1);background:rgba(255,255,255,.04)}
.toc-link.is-h3{padding-left:24px;font-size:13px;color:var(--text-3)}
.toc-link.active{color:var(--primary);background:rgba(46,230,176,.08)}
.toc-link.active::before{height:60%}
.toc-empty{font-size:13px;color:var(--text-3);padding:6px 10px}
.side-list{display:flex;flex-direction:column;gap:14px}
.side-item{display:flex;gap:12px;align-items:flex-start;group:item}
.side-item .thumb{
  width:64px;height:46px;flex:none;border-radius:10px;overflow:hidden;background:var(--ink-700);
}
.side-item .thumb img{width:100%;height:100%;transition:transform .35s ease}
.side-item:hover .thumb img{transform:scale(1.06)}
.side-item .t{font-size:14px;line-height:1.5;color:var(--text-1);transition:color .2s ease}
.side-item:hover .t{color:var(--primary)}
.side-item .s{font-size:12px;color:var(--text-3);margin-top:5px}
.member-card{padding:0;overflow:hidden}
.member-card .cover{height:96px;position:relative;background:var(--ink-700)}
.member-card .cover img{width:100%;height:100%;opacity:.55}
.member-card .cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,8,15,.2),rgba(5,8,15,.95))}
.member-card .inner{padding:0 20px 20px;margin-top:-18px;position:relative}
.member-card h3{font-size:17px;font-weight:700;margin-bottom:6px}
.member-card p{font-size:13px;color:var(--text-2);line-height:1.7;margin-bottom:14px}
.member-list{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}
.member-list li{display:flex;align-items:flex-start;gap:8px;font-size:13px;color:var(--text-2)}
.member-list svg{width:15px;height:15px;flex:none;margin-top:4px;stroke:var(--gold);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease,filter .2s ease,background .2s ease;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-600));
  color:#04140F;box-shadow:0 10px 32px var(--primary-soft);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 16px 42px rgba(46,230,176,.30)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 18px rgba(46,230,176,.2)}
.btn-ghost{
  background:linear-gradient(160deg,rgba(255,255,255,.08),rgba(255,255,255,.02));
  border-color:var(--line-strong);color:var(--text-1);backdrop-filter:blur(14px);
}
.btn-ghost:hover{border-color:rgba(46,230,176,.42);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-gold{
  background:linear-gradient(135deg,var(--gold),var(--gold-600));
  color:#241700;box-shadow:0 10px 28px rgba(255,194,75,.20);
}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 16px 40px rgba(255,194,75,.34)}
.btn-gold:active{transform:translateY(1px)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn[disabled]{opacity:.45;box-shadow:none;cursor:not-allowed}

/* ============ 内容区板块 ============ */
.section{margin-top:56px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px}
.section-head h2{font-size:24px;font-weight:700;letter-spacing:-.01em;position:relative;padding-left:14px}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.28em;width:4px;height:.9em;border-radius:2px;
  background:linear-gradient(180deg,var(--primary),var(--primary-600));
}
.section-head .sub{display:block;margin-top:6px;font-size:14px;color:var(--text-3)}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--text-2);transition:color .2s ease}
.text-link:hover{color:var(--primary)}
.text-link svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}

.post-nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:36px}
.post-nav-card{
  display:block;padding:20px 22px;border-radius:var(--r-card);
  background:var(--ink-700);border:1px solid var(--line);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.post-nav-card:hover{transform:translateY(-4px);border-color:rgba(255,255,255,.18);box-shadow:0 18px 44px rgba(0,0,0,.4),0 0 32px var(--primary-soft)}
.post-nav-card .nav-label{display:block;font-size:12px;color:var(--text-3);margin-bottom:8px;letter-spacing:.04em}
.post-nav-card strong{font-size:16px;font-weight:600;line-height:1.5;color:var(--text-1)}
.post-nav-card:hover strong{color:var(--primary)}

.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.news-card{
  display:flex;flex-direction:column;overflow:hidden;border-radius:var(--r-card);
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  border:1px solid rgba(255,255,255,.10);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.news-card:hover{transform:translateY(-4px);border-color:rgba(255,255,255,.18);box-shadow:0 22px 52px rgba(0,0,0,.45),0 0 34px var(--primary-soft)}
.news-card .thumb{aspect-ratio:16/9;overflow:hidden;background:var(--ink-600)}
.news-card .thumb img{width:100%;height:100%;transition:transform .4s ease}
.news-card:hover .thumb img{transform:scale(1.04)}
.news-card .card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-card h3{font-size:17px;line-height:1.5;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card:hover h3{color:var(--primary)}
.news-card p{font-size:14px;line-height:1.7;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card .time{font-size:13px;color:var(--text-3);margin-top:auto;font-variant-numeric:tabular-nums}

.cta-band{
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:28px;align-items:center;
  margin-top:56px;padding:32px 34px;border-radius:var(--r-panel);
  background:linear-gradient(140deg,rgba(46,230,176,.10),rgba(91,140,255,.06) 60%,rgba(255,255,255,.02));
  border:1px solid rgba(46,230,176,.22);
  box-shadow:0 24px 60px rgba(0,0,0,.45),0 0 40px rgba(46,230,176,.10);
}
.cta-band h2{font-size:24px;font-weight:700;margin-bottom:10px}
.cta-band p{font-size:15px;color:var(--text-2);line-height:1.8;max-width:640px}
.cta-points{display:flex;flex-wrap:wrap;gap:16px;margin-top:16px}
.cta-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-2)}
.cta-points svg{width:16px;height:16px;stroke:var(--primary);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.cta-actions{display:flex;flex-direction:column;gap:12px;min-width:200px}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;z-index:1;margin-top:88px;background:#04070D;
  border-top:1px solid var(--line);padding:64px 0 28px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;margin-bottom:14px}
.footer-brand svg{width:34px;height:34px}
.site-footer .desc{font-size:14px;line-height:1.8;color:var(--text-2);max-width:320px}
.site-footer h4{font-size:14px;font-weight:600;letter-spacing:.04em;color:var(--text-1);margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{
  position:relative;font-size:14px;color:var(--text-2);padding-left:0;
  transition:color .2s ease,padding-left .2s ease;
}
.footer-links a::before{
  content:"";position:absolute;left:-12px;top:50%;transform:translateY(-50%);
  width:2px;height:0;border-radius:2px;background:var(--primary);transition:height .2s ease;
}
.footer-links a:hover{color:var(--primary);padding-left:6px}
.footer-links a:hover::before{height:14px}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  margin-top:52px;padding-top:22px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}

/* ============ 断点 ============ */
@media (min-width:1280px){
  body{padding-left:248px}
  .sidebar{transform:none}
}
@media (min-width:1024px) and (max-width:1279px){
  body{padding-left:216px}
  .sidebar{width:216px;transform:none}
  .sidebar .brand-name{font-size:15px}
}
@media (min-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr) 320px}
  .topbar{display:none}
  .drawer-mask{display:none}
  .drawer-close{display:none}
}
@media (max-width:1023px){
  body{padding-top:64px}
  .topbar{display:flex}
  .sidebar{width:280px;transform:translateX(-104%);box-shadow:0 24px 60px rgba(0,0,0,.6)}
  body.drawer-open .sidebar{transform:translateX(0)}
  body.drawer-open .drawer-mask{opacity:1;visibility:visible}
  body.drawer-open{overflow:hidden}
  .drawer-close{display:inline-flex;align-items:center;justify-content:center}
  .article-side .side-sticky{position:static}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:900px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .cta-band{grid-template-columns:minmax(0,1fr)}
  .cta-actions{flex-direction:row;flex-wrap:wrap;min-width:0}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .page-wrap{padding:22px 0 64px}
  .article-hero{padding:26px 20px 24px}
  .article-panel{padding:24px}
  .article-body p{font-size:16px;line-height:1.9}
  .article-body > p:first-of-type{font-size:17px}
  .article-body h2{font-size:20px}
  .article-body h3{font-size:18px}
  .post-nav{grid-template-columns:minmax(0,1fr)}
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .section{margin-top:44px}
  .section-head h2{font-size:20px}
  .cta-band{padding:24px 20px;margin-top:44px}
  .site-footer{padding:48px 0 24px;margin-top:64px}
  .breadcrumb .current{max-width:46vw}
}
@media (max-width:520px){
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .meta-row{font-size:12px}
  .article-hero h1{font-size:23px}
  .cta-actions .btn{width:100%}
}

/* roulang page: category2 */
:root{
  --ink-900:#05080F;
  --ink-800:#0A1020;
  --ink-700:#111A2E;
  --ink-600:#1A2540;
  --primary:#2EE6B0;
  --primary-600:#12B98C;
  --primary-soft:rgba(46,230,176,.14);
  --accent:#5B8CFF;
  --gold:#FFC24B;
  --gold-600:#E0A22C;
  --text-1:#E9F0FB;
  --text-2:#9FB0CC;
  --text-3:#67769A;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --success:#3DD68C;
  --warn:#FFB020;
  --r-card:18px;
  --r-panel:22px;
  --r-btn:12px;
  --shadow:0 24px 60px rgba(0,0,0,.45);
  --sidebar-w:248px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--ink-900);color:var(--text-1);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;line-height:1.85;font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);
  background-size:24px 24px;
}
img{max-width:100%;display:block}
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}
ul,ol{padding:0;list-style:none}
::selection{background:var(--primary-soft);color:#fff}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0;position:relative}
.section-alt{
  background:linear-gradient(180deg,rgba(10,16,32,.72),rgba(10,16,32,.18));
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{
  position:relative;padding-left:18px;font-size:28px;line-height:1.3;font-weight:700;letter-spacing:-.005em;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--primary),var(--primary-600));box-shadow:0 0 16px var(--primary-soft);
}
.section-head p{margin-top:12px;color:var(--text-2);font-size:15px;line-height:1.7}

/* ---------- 侧边导航 ---------- */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);z-index:70;
  display:flex;flex-direction:column;gap:22px;padding:26px 18px 22px;
  background:rgba(8,12,24,.78);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  overflow-y:auto;
}
.sidebar::after{
  content:"";position:absolute;top:0;right:0;width:1px;height:100%;
  background:linear-gradient(180deg,transparent,rgba(46,230,176,.30),transparent);
}
.brand{display:flex;align-items:center;gap:10px;padding:4px 6px}
.brand-mark{width:38px;height:38px;flex:0 0 38px}
.brand-name{
  display:flex;flex-direction:column;line-height:1.25;font-size:17px;font-weight:700;letter-spacing:-.01em;
}
.brand-sub{font-size:11px;font-weight:500;color:var(--text-3);letter-spacing:.06em}
.nav-list{display:flex;flex-direction:column;gap:4px}
.nav-list a{
  position:relative;display:flex;align-items:center;gap:10px;
  padding:11px 12px;border-radius:12px;color:var(--text-2);font-size:15px;
  transition:background .2s ease,color .2s ease;
}
.nav-list svg{width:20px;height:20px;flex:0 0 20px}
.nav-list a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%) scaleY(.3);
  width:3px;height:18px;border-radius:3px;background:var(--primary);
  opacity:0;transition:opacity .2s ease,transform .2s ease;
}
.nav-list a:hover{background:rgba(255,255,255,.04);color:var(--text-1)}
.nav-list a:hover::before{opacity:.7;transform:translateY(-50%) scaleY(1)}
.nav-list a.active{
  background:rgba(255,255,255,.06);color:var(--text-1);font-weight:600;
}
.nav-list a.active::before{opacity:1;transform:translateY(-50%) scaleY(1);box-shadow:0 0 12px var(--primary)}
.sidebar-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px}
.sidebar-foot p{font-size:12px;color:var(--text-3);line-height:1.6}
.btn-block{width:100%}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 22px;border-radius:var(--r-btn);font-weight:600;font-size:15px;
  border:1px solid transparent;transition:transform .22s ease,box-shadow .22s ease,filter .22s ease,border-color .22s ease,color .22s ease;
}
.btn svg{width:18px;height:18px}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-600));color:#04140F;
  box-shadow:0 10px 32px var(--primary-soft);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 16px 44px rgba(46,230,176,.30)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 18px rgba(46,230,176,.20)}
.btn-ghost{
  background:linear-gradient(160deg,rgba(255,255,255,.08),rgba(255,255,255,.02));
  border-color:var(--line-strong);color:var(--text-1);
  backdrop-filter:blur(14px) saturate(140%);
}
.btn-ghost:hover{border-color:rgba(46,230,176,.42);color:#fff;transform:translateY(-2px)}
.btn-gold{
  background:linear-gradient(135deg,var(--gold),var(--gold-600));color:#241704;
  box-shadow:0 10px 28px rgba(255,194,75,.18);
}
.btn-gold:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 14px 36px rgba(255,194,75,.30)}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:10px}

/* ---------- 顶部条（移动端） ---------- */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:64px;z-index:64;
  align-items:center;justify-content:space-between;padding:0 16px;
  background:rgba(8,12,24,.92);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.topbar .brand-name{font-size:16px}
.topbar .brand-sub{display:none}
.hamburger{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line-strong);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  background:rgba(255,255,255,.04);
}
.hamburger span{display:block;width:18px;height:1.6px;border-radius:2px;background:var(--text-1);transition:.24s}
.hamburger[aria-expanded="true"] span:nth-child(1){transform:translateY(5.6px) rotate(45deg)}
.hamburger[aria-expanded="true"] span:nth-child(2){opacity:0}
.hamburger[aria-expanded="true"] span:nth-child(3){transform:translateY(-5.6px) rotate(-45deg)}
.scrim{
  position:fixed;inset:0;z-index:66;background:rgba(3,6,12,.62);
  opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease;
}
.scrim.show{opacity:1;visibility:visible}

.main-wrap{margin-left:var(--sidebar-w);position:relative;z-index:1}
.sidebar-close{display:none}

/* ---------- 面包屑 ---------- */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3)}
.crumbs a{color:var(--text-2);transition:color .2s}
.crumbs a:hover{color:var(--primary)}
.crumbs .sep{opacity:.5}
.crumbs .current{color:var(--text-1)}

/* ---------- 内页 Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;padding:72px 0 64px;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(5,8,15,.95),rgba(5,8,15,.80) 52%,rgba(5,8,15,.58));
}
.page-hero::after{
  content:"";position:absolute;right:-120px;bottom:-180px;width:560px;height:560px;border-radius:50%;
  background:radial-gradient(circle,rgba(46,230,176,.16),rgba(46,230,176,0) 68%);
}
.page-hero .container{position:relative;z-index:1}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  border:1px solid rgba(46,230,176,.30);background:var(--primary-soft);
  color:var(--primary);font-size:13px;font-weight:600;letter-spacing:.02em;
}
.page-hero h1{
  margin-top:20px;font-size:clamp(30px,4.6vw,52px);line-height:1.15;font-weight:700;letter-spacing:-.01em;
  max-width:16em;
}
.page-hero .lead{
  margin-top:18px;max-width:44em;font-size:16px;line-height:1.85;color:var(--text-2);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;margin-top:44px;
  padding:24px 26px;border-radius:var(--r-panel);border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(255,255,255,.08),rgba(255,255,255,.02));
  backdrop-filter:blur(14px) saturate(140%);
}
.hero-stats .num{font-size:30px;font-weight:700;color:var(--primary);line-height:1.2}
.hero-stats .num small{font-size:14px;font-weight:600;margin-left:2px;color:var(--text-2)}
.hero-stats .lab{font-size:13px;color:var(--text-3);margin-top:4px}

/* ---------- 筛选条 ---------- */
.chipbar{
  border-bottom:1px solid var(--line);background:rgba(10,16,32,.66);
  backdrop-filter:blur(14px) saturate(140%);
}
.chipbar-inner{
  display:flex;align-items:center;gap:10px;padding:14px 0;overflow-x:auto;
  scrollbar-width:none;-ms-overflow-style:none;
}
.chipbar-inner::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;padding:8px 16px;border-radius:999px;font-size:14px;font-weight:600;
  color:var(--text-2);border:1px solid var(--line);background:rgba(255,255,255,.03);
  transition:all .2s ease;white-space:nowrap;
}
.chip:hover{color:var(--text-1);border-color:rgba(46,230,176,.36)}
.chip.active{
  color:#04140F;background:linear-gradient(135deg,var(--primary),var(--primary-600));
  border-color:transparent;box-shadow:0 8px 22px var(--primary-soft);
}
.chip-note{margin-left:auto;flex:0 0 auto;font-size:13px;color:var(--text-3);padding-left:16px}
.chip-note b{color:var(--primary);font-weight:600}

/* ---------- 图文交错 ---------- */
.zigzag{
  display:grid;grid-template-columns:1.05fr 1fr;gap:52px;align-items:center;
  padding:44px 0;
}
.zigzag + .zigzag{border-top:1px solid var(--line)}
.zigzag.flip .zz-media{order:2}
.zz-tag{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;
  color:var(--accent);letter-spacing:.04em;
}
.zz-body h3{margin-top:12px;font-size:24px;line-height:1.35;font-weight:700}
.zz-body > p{margin-top:14px;color:var(--text-2);font-size:15px;line-height:1.85;max-width:38em}
.zz-list{margin-top:20px;display:flex;flex-direction:column;gap:12px}
.zz-list li{display:flex;gap:10px;font-size:15px;color:var(--text-2);line-height:1.75}
.zz-list li svg{width:20px;height:20px;flex:0 0 20px;margin-top:4px;color:var(--primary)}
.zz-list li b{color:var(--text-1);font-weight:600}
.zz-media{
  position:relative;border-radius:var(--r-panel);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow);aspect-ratio:16/10;
}
.zz-media img{width:100%;height:100%;object-fit:cover}
.zz-media .zz-cap{
  position:absolute;left:16px;bottom:16px;padding:6px 12px;border-radius:999px;
  font-size:12px;color:var(--text-1);background:rgba(5,8,15,.72);border:1px solid var(--line-strong);
}

/* ---------- 卡片网格 ---------- */
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.tile{
  position:relative;display:flex;flex-direction:column;
  padding:24px;border-radius:var(--r-card);
  background:linear-gradient(160deg,rgba(255,255,255,.08),rgba(255,255,255,.02));
  border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.tile:hover{transform:translateY(-4px);border-color:rgba(255,255,255,.18);box-shadow:var(--shadow),0 0 32px var(--primary-soft)}
.tile-cover{position:relative;border-radius:14px;overflow:hidden;aspect-ratio:16/9;margin-bottom:18px;background:var(--ink-600)}
.tile-cover img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.tile:hover .tile-cover img{transform:scale(1.04)}
.tile-head{display:flex;align-items:center;gap:12px}
.tile-icon{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(91,140,255,.14);border:1px solid rgba(91,140,255,.28);color:var(--accent);
}
.tile-icon svg{width:20px;height:20px}
.tile h3{font-size:19px;font-weight:600;line-height:1.4}
.tile p{margin-top:12px;font-size:15px;line-height:1.8;color:var(--text-2)}
.tile-link{
  margin-top:18px;display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--primary);
}
.tile-link svg{width:16px;height:16px;transition:transform .2s ease}
.tile-link:hover svg{transform:translateX(3px)}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1.6;
}
.badge-accent{background:rgba(91,140,255,.14);border:1px solid rgba(91,140,255,.28);color:var(--accent)}
.badge-primary{background:var(--primary-soft);border:1px solid rgba(46,230,176,.28);color:var(--primary)}
.badge-gold{background:rgba(255,194,75,.14);border:1px solid rgba(255,194,75,.30);color:var(--gold)}

/* ---------- 对比清单 ---------- */
.compare{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.compare-col{
  padding:28px;border-radius:var(--r-panel);border:1px solid var(--line);background:var(--ink-800);
}
.compare-col h3{font-size:19px;font-weight:600;display:flex;align-items:center;gap:10px}
.compare-col .sub{margin-top:8px;font-size:14px;color:var(--text-3)}
.compare-col.featured{
  background:linear-gradient(155deg,rgba(46,230,176,.12),rgba(255,255,255,.02));
  border-color:rgba(46,230,176,.32);
  box-shadow:var(--shadow),0 0 44px var(--primary-soft);
}
.compare-row{
  display:flex;gap:12px;align-items:flex-start;padding:14px 0;border-top:1px solid var(--line);
  font-size:15px;line-height:1.75;
}
.compare-col.featured .compare-row{border-top-color:rgba(255,255,255,.12)}
.compare-row:first-of-type{margin-top:16px}
.compare-row svg{width:18px;height:18px;flex:0 0 18px;margin-top:6px}
.compare-row .ok{color:var(--primary)}
.compare-row .no{color:var(--text-3)}
.compare-row span{color:var(--text-2)}
.compare-row span.strong{color:var(--text-1)}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r-card);background:var(--ink-800);
  padding:0;transition:border-color .22s ease;
}
.faq-item:hover{border-color:rgba(255,255,255,.16)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
  padding:20px 22px;font-size:16px;font-weight:600;line-height:1.55;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-ico{
  width:22px;height:22px;flex:0 0 22px;color:var(--text-3);transition:transform .24s ease,color .24s ease;
}
.faq-item[open] summary{color:var(--text-1)}
.faq-item[open] .faq-ico{transform:rotate(180deg);color:var(--primary)}
.faq-answer{
  padding:0 22px 22px;font-size:15px;line-height:1.8;color:var(--text-2);
  border-top:1px solid var(--line);padding-top:16px;margin:0 0 0;
}
.faq-answer strong{color:var(--text-1);font-weight:600}

/* ---------- CTA ---------- */
.cta-band{
  display:grid;grid-template-columns:1.08fr .92fr;gap:40px;align-items:center;
  padding:40px;border-radius:var(--r-panel);
  background:linear-gradient(150deg,rgba(46,230,176,.10),rgba(255,255,255,.02));
  border:1px solid rgba(46,230,176,.24);
  box-shadow:var(--shadow),0 0 48px var(--primary-soft);
}
.cta-band h2{font-size:28px;line-height:1.32;font-weight:700}
.cta-band > div > p{margin-top:14px;color:var(--text-2);font-size:15px;line-height:1.85;max-width:32em}
.cta-points{margin-top:22px;display:flex;flex-direction:column;gap:12px}
.cta-points li{display:flex;gap:10px;font-size:15px;color:var(--text-2)}
.cta-points svg{width:20px;height:20px;flex:0 0 20px;margin-top:4px;color:var(--primary)}
.cta-form{
  padding:26px;border-radius:18px;background:rgba(10,16,32,.88);border:1px solid var(--line);
  backdrop-filter:blur(14px);
}
.cta-form h3{font-size:17px;font-weight:600}
.field{margin-top:16px}
.field label{display:block;font-size:13px;color:var(--text-3);margin-bottom:8px}
.field input{
  width:100%;padding:13px 14px;border-radius:12px;font:inherit;font-size:15px;
  background:var(--ink-700);border:1px solid var(--line);color:var(--text-1);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field input::placeholder{color:var(--text-3)}
.field input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft)}
.cta-form .btn{width:100%;margin-top:20px}
.form-note{margin-top:12px;font-size:12px;color:var(--text-3);line-height:1.7}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;z-index:1;background:#04070D;border-top:1px solid var(--line);padding:64px 0 28px;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700}
.footer-brand svg{width:34px;height:34px}
.site-footer .desc{margin-top:14px;font-size:14px;line-height:1.8;color:var(--text-3);max-width:26em}
.site-footer h4{font-size:15px;font-weight:600;color:var(--text-1);margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{
  position:relative;font-size:14px;color:var(--text-2);padding-left:0;transition:color .2s ease,padding-left .2s ease;
}
.footer-links a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:2px;height:0;border-radius:2px;background:var(--primary);transition:height .2s ease;
}
.footer-links a:hover{color:var(--primary);padding-left:10px}
.footer-links a:hover::before{height:14px}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--sidebar-w:216px}
  .section{padding:80px 0}
}
@media (max-width:1023px){
  .topbar{display:flex}
  .sidebar{
    transform:translateX(-100%);transition:transform .3s ease;width:280px;z-index:70;
    box-shadow:var(--shadow);background:rgba(8,12,24,.97);
  }
  .sidebar.open{transform:translateX(0)}
  .sidebar::after{display:none}
  .sidebar-close{display:flex;align-items:center;justify-content:center}
  .main-wrap{margin-left:0;padding-top:64px}
  .zigzag{grid-template-columns:1fr;gap:28px;padding:36px 0}
  .zigzag.flip .zz-media{order:0}
  .cta-band{grid-template-columns:1fr;gap:28px;padding:30px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
}
@media (max-width:767px){
  .section{padding:64px 0}
  .container{padding:0 18px}
  .page-hero{padding:52px 0 48px}
  .page-hero .lead{font-size:15px}
  .hero-actions{gap:12px}
  .hero-actions .btn{flex:1 1 auto}
  .grid-2{grid-template-columns:1fr}
  .compare{grid-template-columns:1fr}
  .faq-wrap{grid-template-columns:1fr}
  .section-head h2{font-size:24px}
  .cta-band h2{font-size:24px}
  .zz-body h3{font-size:21px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
}
@media (max-width:519px){
  body{font-size:15px}
  .hero-stats{grid-template-columns:1fr;gap:14px;padding:20px}
  .hero-stats .num{font-size:26px}
  .btn{padding:12px 18px;font-size:14px}
  .cta-form{padding:20px}
  .compare-col{padding:22px}
  .tile{padding:20px}
  .footer-bottom{justify-content:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}