/* roulang page: index */
:root{
  --bg:#08070E;
  --surface:#100E1A;
  --card:#14111F;
  --elev:#221E36;
  --accent:#2FE6B5;
  --accent-2:#FF4D8D;
  --amber:#FFC14D;
  --text:#F2F0FA;
  --muted:#B9B4CC;
  --dim:#7C7791;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --r-card:16px;
  --r-btn:12px;
  --r-pill:999px;
  --r-input:10px;
  --r-badge:6px;
  --sh-card:0 18px 40px rgba(0,0,0,.45);
  --sh-glow:0 0 0 1px rgba(47,230,181,.25),0 0 24px rgba(47,230,181,.12);
  --sec-y:96px;
  --mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,"JetBrains Mono",monospace;
  --bs-body-bg:var(--bg);
  --bs-body-color:var(--text);
  --bs-primary:var(--accent);
  --bs-border-color:var(--line);
  --bs-border-radius:var(--r-card);
  --bs-link-color:var(--accent);
  --bs-link-hover-color:var(--accent);
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:88px;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,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;transition:color .24s ease;}
a:hover{color:var(--accent);}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text);}
p{margin:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
::selection{background:rgba(47,230,181,.28);color:#fff;}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.grain{
  position:fixed;inset:0;pointer-events:none;z-index:0;opacity:.5;
  background-image:radial-gradient(rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:24px 24px;
}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(11,9,19,.9);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  border-image:linear-gradient(90deg,var(--accent),var(--accent-2)) 1;
}
.nav-inner{
  height:68px;display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;letter-spacing:-.3px;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-dot{
  width:10px;height:10px;border-radius:50%;background:var(--accent);flex:0 0 auto;
  box-shadow:0 0 0 4px rgba(47,230,181,.14),0 0 14px rgba(47,230,181,.7);
}
.brand em{font-style:normal;color:var(--accent);}
.brand .brand-sub{font-size:11px;color:var(--dim);font-weight:500;letter-spacing:1px;display:block;line-height:1;margin-top:2px;}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-link-x{
  position:relative;padding:9px 14px;border-radius:var(--r-btn);font-size:14.5px;color:var(--muted);font-weight:500;
}
.nav-link-x::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--accent),var(--accent-2));transform:scaleX(0);transform-origin:left;transition:transform .26s ease;
}
.nav-link-x:hover{color:var(--text);background:rgba(255,255,255,.04);}
.nav-link-x:hover::after{transform:scaleX(1);}
.nav-link-x.active{color:var(--accent);background:rgba(47,230,181,.08);}
.nav-link-x.active::after{transform:scaleX(1);}
.nav-right{display:flex;align-items:center;gap:12px;}
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);border:1px solid transparent;
  background:var(--accent);color:#06110D;font-weight:700;font-size:15px;line-height:1;
  cursor:pointer;transition:transform .24s ease,box-shadow .24s ease,background .24s ease,color .24s ease;
}
.btn-x:hover{background:#3ff0c0;color:#06110D;transform:translateY(-1px);box-shadow:0 10px 26px rgba(47,230,181,.28);}
.btn-x:active{transform:translateY(0);}
.btn-x.sm{padding:10px 18px;font-size:14px;}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);border:1px solid var(--line-strong);
  background:transparent;color:var(--text);font-weight:600;font-size:15px;line-height:1;
  cursor:pointer;transition:border-color .24s ease,color .24s ease,transform .24s ease,box-shadow .24s ease;
}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px);box-shadow:0 0 20px rgba(47,230,181,.14);}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;color:var(--accent);font-weight:600;font-size:14.5px;
}
.btn-text svg{transition:transform .24s ease;}
.btn-text:hover svg{transform:translateX(4px);}
.burger{
  display:none;width:42px;height:42px;border-radius:var(--r-btn);border:1px solid var(--line-strong);
  background:rgba(255,255,255,.03);align-items:center;justify-content:center;cursor:pointer;
}
.burger span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;position:relative;}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px;}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}
.offcanvas.offcanvas-x{background:var(--surface);color:var(--text);border-right:1px solid var(--line);width:min(86vw,340px);}
.offcanvas-x .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px;}
.offcanvas-x .offcanvas-body{padding:16px 20px 90px;}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;padding:15px 16px;border-radius:var(--r-btn);
  color:var(--muted);font-size:16px;font-weight:600;border:1px solid transparent;
}
.drawer-link:hover,.drawer-link.active{color:var(--accent);background:rgba(47,230,181,.08);border-color:rgba(47,230,181,.25);}
.drawer-foot{position:absolute;left:20px;right:20px;bottom:20px;}

/* ---------- hero ---------- */
.hero{position:relative;min-height:88vh;display:flex;align-items:center;overflow:hidden;}
.hero-bg{position:absolute;inset:0;z-index:0;}
.hero-bg img{width:100%;height:100%;object-fit:cover;}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(8,7,14,.96) 0%,rgba(8,7,14,.86) 42%,rgba(8,7,14,.68) 100%);
}
.hero-glow-a,.hero-glow-b{position:absolute;z-index:1;border-radius:50%;filter:blur(120px);pointer-events:none;}
.hero-glow-a{width:420px;height:420px;background:rgba(47,230,181,.12);top:-90px;left:-80px;}
.hero-glow-b{width:380px;height:380px;background:rgba(255,77,141,.10);bottom:-120px;right:-60px;}
.hero-wave{position:absolute;left:0;right:0;bottom:0;height:120px;z-index:1;opacity:.14;pointer-events:none;}
.hero-inner{position:relative;z-index:2;padding:120px 0 92px;width:100%;}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:56px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:var(--r-pill);
  background:rgba(47,230,181,.10);border:1px solid rgba(47,230,181,.30);color:var(--accent);
  font-size:12.5px;font-weight:600;letter-spacing:.4px;margin-bottom:22px;
}
.hero h1{
  font-size:clamp(28px,4.2vw,52px);font-weight:800;line-height:1.18;letter-spacing:-.5px;margin-bottom:20px;
}
.hero h1 .hl{color:var(--accent);}
.hero-sub{font-size:clamp(15px,1.4vw,18px);color:var(--muted);max-width:520px;margin-bottom:32px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:44px;}
.trust-row{display:flex;flex-wrap:wrap;gap:36px;}
.trust-item .num{font-family:var(--mono);font-size:26px;font-weight:700;color:var(--text);line-height:1.1;letter-spacing:-.5px;}
.trust-item .num span{color:var(--accent);}
.trust-item .lbl{font-size:13px;color:var(--dim);margin-top:6px;}
.hero-visual{position:relative;}
.hero-visual .frame{
  border-radius:20px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-card);
  aspect-ratio:16/11;background:var(--card);
}
.hero-visual .frame img{width:100%;height:100%;object-fit:cover;}
.float-card{
  position:absolute;left:-18px;bottom:-26px;width:236px;padding:16px 18px;border-radius:var(--r-card);
  background:rgba(34,30,54,.92);backdrop-filter:blur(10px);border:1px solid rgba(47,230,181,.25);
  box-shadow:0 18px 40px rgba(0,0,0,.5),0 0 24px rgba(47,230,181,.12);
}
.float-card .fc-top{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--dim);}
.float-card .fc-num{font-family:var(--mono);font-size:24px;font-weight:700;color:var(--accent);margin-top:6px;line-height:1.2;}
.float-card .fc-desc{font-size:12.5px;color:var(--muted);margin-top:4px;}
.bar-mini{height:6px;border-radius:var(--r-pill);background:rgba(255,255,255,.08);margin-top:12px;overflow:hidden;}
.bar-mini i{display:block;height:100%;width:78%;border-radius:var(--r-pill);background:linear-gradient(90deg,var(--accent),var(--accent-2));}

/* ---------- anchor strip ---------- */
.anchor-strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--surface);}
.anchor-row{display:flex;gap:10px;overflow-x:auto;padding:14px 0;scrollbar-width:none;}
.anchor-row::-webkit-scrollbar{display:none;}
.anchor-pill{
  flex:0 0 auto;padding:8px 16px;border-radius:var(--r-pill);border:1px solid var(--line);
  font-size:13.5px;color:var(--muted);white-space:nowrap;transition:.24s ease;
}
.anchor-pill:hover{color:var(--accent);border-color:rgba(47,230,181,.35);background:rgba(47,230,181,.06);}
.anchor-pill.on{color:var(--accent);border-color:rgba(47,230,181,.35);background:rgba(47,230,181,.08);}

/* ---------- sections ---------- */
.sec{padding:var(--sec-y) 0;position:relative;}
.sec-alt{background:var(--surface);}
.sec-head{max-width:660px;margin-bottom:52px;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-tag{
  display:inline-block;font-size:12.5px;font-weight:600;letter-spacing:1.2px;color:var(--accent-2);
  text-transform:uppercase;margin-bottom:14px;font-family:var(--mono);
}
.sec-head h2{font-size:clamp(22px,2.6vw,34px);font-weight:700;line-height:1.28;margin-bottom:14px;}
.sec-head h2::before{content:"";display:block;width:44px;height:4px;border-radius:3px;background:var(--accent);margin-bottom:16px;}
.sec-head.center h2::before{margin-left:auto;margin-right:auto;}
.sec-head p{color:var(--muted);font-size:15.5px;}

/* ---------- features ---------- */
.feat-row{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:48px;align-items:center;
  padding:34px 0;border-bottom:1px solid var(--line);
}
.feat-row:last-child{border-bottom:none;}
.feat-row.rev .feat-copy{order:2;}
.feat-row.rev .feat-visual{order:1;}
.badge-x{
  display:inline-block;padding:5px 11px;border-radius:var(--r-badge);font-size:12px;font-weight:600;
  background:rgba(47,230,181,.12);border:1px solid rgba(47,230,181,.30);color:var(--accent);margin-bottom:16px;
}
.badge-x.mag{background:rgba(255,77,141,.12);border-color:rgba(255,77,141,.30);color:var(--accent-2);}
.feat-copy h3{font-size:20px;font-weight:700;margin-bottom:12px;}
.feat-copy p{color:var(--muted);font-size:15.5px;}
.feat-visual{
  border-radius:var(--r-card);border:1px solid var(--line);background:var(--card);
  padding:24px;position:relative;overflow:hidden;
}
.feat-visual .ico{
  width:46px;height:46px;border-radius:13px;display:flex;align-items:center;justify-content:center;
  background:rgba(47,230,181,.10);border:1px solid rgba(47,230,181,.28);margin-bottom:16px;
}
.feat-visual .mini-lines span{display:block;height:8px;border-radius:var(--r-pill);background:rgba(255,255,255,.07);margin-bottom:10px;}
.feat-visual .mini-lines span:nth-child(1){width:72%;background:rgba(47,230,181,.22);}
.feat-visual .mini-lines span:nth-child(2){width:90%;}
.feat-visual .mini-lines span:nth-child(3){width:56%;}
.spec-list{margin-top:18px;display:grid;gap:10px;}
.spec-list li{display:flex;gap:10px;font-size:14px;color:var(--muted);}
.spec-list li svg{flex:0 0 auto;margin-top:5px;}

/* ---------- demo ---------- */
.demo-grid{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);gap:40px;align-items:center;}
.demo-panel{
  position:relative;border-radius:20px;overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--sh-card);min-height:360px;background:var(--card);
}
.demo-panel>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.42;}
.demo-panel .overlay{
  position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,7,14,.55),rgba(8,7,14,.92));
}
.skeleton{position:relative;z-index:2;padding:28px;}
.sk-bar{display:flex;gap:8px;margin-bottom:20px;}
.sk-bar i{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.16);}
.sk-bar i:first-child{background:var(--accent-2);}
.sk-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;}
.sk-block{border-radius:12px;background:rgba(255,255,255,.05);border:1px solid var(--line);padding:14px;}
.sk-block b{display:block;font-family:var(--mono);font-size:13px;color:var(--accent);font-weight:600;}
.sk-block span{display:block;height:7px;border-radius:var(--r-pill);background:rgba(255,255,255,.09);margin-top:12px;}
.sk-block span:nth-of-type(2){width:68%;margin-top:8px;}
.sk-block.tall{grid-row:span 2;}
.sk-block.tall span{height:9px;}
.demo-points li{display:flex;gap:14px;padding:18px 0;border-bottom:1px solid var(--line);}
.demo-points li:last-child{border-bottom:none;}
.demo-points .idx{
  font-family:var(--mono);font-size:13px;font-weight:700;color:var(--accent-2);
  width:34px;height:34px;flex:0 0 auto;border-radius:10px;display:flex;align-items:center;justify-content:center;
  background:rgba(255,77,141,.10);border:1px solid rgba(255,77,141,.28);
}
.demo-points h4{font-size:16px;font-weight:700;margin-bottom:5px;}
.demo-points p{font-size:14.5px;color:var(--muted);}

/* ---------- proof ---------- */
.stats-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;margin-bottom:44px;
}
.stat{background:var(--card);padding:28px 24px;}
.stat .v{font-family:var(--mono);font-size:clamp(24px,2.6vw,34px);font-weight:700;color:var(--accent);line-height:1.1;}
.stat .v em{font-style:normal;font-size:16px;color:var(--muted);margin-left:3px;}
.stat .k{font-size:13.5px;color:var(--dim);margin-top:8px;}
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.quote-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:24px;
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.quote-card:hover{transform:translateY(-4px);border-color:rgba(47,230,181,.35);box-shadow:var(--sh-card),var(--sh-glow);}
.quote-card .stars{display:flex;gap:3px;margin-bottom:14px;}
.quote-card p{font-size:15px;color:var(--muted);margin-bottom:20px;}
.quote-user{display:flex;align-items:center;gap:12px;}
.quote-user .av{
  width:40px;height:40px;border-radius:50%;flex:0 0 auto;
  background:linear-gradient(135deg,rgba(47,230,181,.35),rgba(255,77,141,.35));
  border:1px solid var(--line-strong);
}
.quote-user .nm{font-size:14.5px;font-weight:600;}
.quote-user .ro{font-size:12.5px;color:var(--dim);}

/* ---------- pricing ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch;}
.price-card{
  position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:30px 26px;display:flex;flex-direction:column;transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.price-card:hover{transform:translateY(-4px);border-color:rgba(47,230,181,.35);box-shadow:var(--sh-card);}
.price-card .corner{
  position:absolute;top:0;left:0;width:46px;height:3px;border-radius:0 0 3px 0;background:var(--accent);
}
.price-card.hot{
  border-color:rgba(255,77,141,.5);
  box-shadow:0 0 0 1px rgba(255,77,141,.22),0 0 30px rgba(255,77,141,.14),var(--sh-card);
}
.price-card.hot .corner{background:var(--accent-2);}
.price-card.hot:hover{border-color:rgba(255,77,141,.75);}
.plan-flag{
  position:absolute;top:18px;right:18px;font-size:11.5px;font-weight:700;padding:4px 10px;border-radius:var(--r-badge);
  background:rgba(255,77,141,.14);border:1px solid rgba(255,77,141,.34);color:var(--accent-2);
}
.plan-name{font-size:17px;font-weight:700;margin-bottom:6px;}
.plan-desc{font-size:13.5px;color:var(--dim);margin-bottom:20px;}
.plan-price{display:flex;align-items:baseline;gap:6px;margin-bottom:22px;}
.plan-price .cur{font-size:16px;color:var(--muted);}
.plan-price .val{font-family:var(--mono);font-size:42px;font-weight:700;letter-spacing:-1.5px;line-height:1;}
.plan-price .unit{font-size:13px;color:var(--dim);}
.plan-feat{display:grid;gap:11px;margin-bottom:28px;flex:1;}
.plan-feat li{display:flex;gap:9px;font-size:14.5px;color:var(--muted);}
.plan-feat li svg{flex:0 0 auto;margin-top:5px;}

/* ---------- news ---------- */
.filter-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px;}
.filter-pill{
  padding:8px 16px;border-radius:var(--r-pill);border:1px solid var(--line);font-size:13.5px;color:var(--muted);
  transition:.24s ease;
}
.filter-pill:hover,.filter-pill.on{color:var(--accent);border-color:rgba(47,230,181,.35);background:rgba(47,230,181,.08);}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  display:flex;flex-direction:column;transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.news-card:hover{transform:translateY(-4px);border-color:rgba(47,230,181,.35);box-shadow:var(--sh-card),var(--sh-glow);}
.news-card .cover{display:block;aspect-ratio:16/10;overflow:hidden;background:var(--elev);position:relative;}
.news-card .cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.news-card:hover .cover img{transform:scale(1.04);}
.news-body{padding:20px 20px 22px;display:flex;flex-direction:column;flex:1;}
.news-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--dim);margin-bottom:12px;}
.news-meta .cat{color:var(--accent);border:1px solid rgba(47,230,181,.3);background:rgba(47,230,181,.1);padding:2px 9px;border-radius:var(--r-badge);font-size:12px;font-weight:600;}
.news-card h3{font-size:17px;font-weight:700;line-height:1.5;margin-bottom:10px;}
.news-card h3 a:hover{color:var(--accent);}
.news-card .excerpt{font-size:14.5px;color:var(--muted);flex:1;margin-bottom:16px;}
.news-foot{display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--line);padding-top:14px;}
.news-foot .time{font-size:13px;color:var(--dim);display:flex;align-items:center;gap:6px;}
.empty-box{
  grid-column:1/-1;text-align:center;padding:64px 24px;border:1px dashed var(--line-strong);
  border-radius:var(--r-card);background:var(--card);
}
.empty-box p{color:var(--muted);font-size:15px;margin:16px 0 20px;}

/* ---------- faq ---------- */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);margin-bottom:14px;overflow:hidden;
  transition:border-color .24s ease,box-shadow .24s ease;
}
.faq-item.open{border-color:rgba(47,230,181,.35);box-shadow:0 0 24px rgba(47,230,181,.10);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;text-align:left;
  padding:20px 22px;background:transparent;border:none;color:var(--text);font-size:16px;font-weight:600;cursor:pointer;
  transition:color .24s ease;
}
.faq-q:hover{color:var(--accent);}
.faq-item.open .faq-q{color:var(--accent);}
.faq-q .chev{flex:0 0 auto;transition:transform .3s ease;}
.faq-item.open .faq-q .chev{transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease;}
.faq-a .inner{padding:0 22px 22px;color:var(--muted);font-size:15px;}

/* ---------- cta strip ---------- */
.cta-strip{
  position:relative;overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:linear-gradient(120deg,rgba(47,230,181,.07),rgba(255,77,141,.07));
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:56px 0;flex-wrap:wrap;}
.cta-inner h2{font-size:clamp(20px,2.2vw,28px);font-weight:700;line-height:1.35;}
.cta-inner p{color:var(--muted);font-size:15px;margin-top:10px;}

/* ---------- footer ---------- */
.site-footer{background:#07060C;border-top:1px solid transparent;border-image:linear-gradient(90deg,var(--accent),var(--accent-2)) 1;padding:72px 0 0;}
.foot-cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:52px;}
.foot-brand .brand{margin-bottom:16px;}
.foot-brand p{font-size:14px;color:var(--dim);max-width:300px;}
.foot-col h4{font-size:14.5px;font-weight:700;margin-bottom:18px;color:var(--text);}
.foot-col li{margin-bottom:11px;}
.foot-col a{font-size:14px;color:var(--muted);}
.foot-col a:hover{color:var(--accent);}
.foot-col .contact-line{font-size:14px;color:var(--muted);margin-bottom:10px;}
.foot-col .contact-line em{font-style:normal;color:var(--accent);font-family:var(--mono);}
.foot-bottom{
  border-top:1px solid var(--line);padding:22px 0;display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:13px;color:var(--dim);
}

/* ---------- float cta ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:1040;
  display:inline-flex;align-items:center;gap:9px;padding:14px 22px;border-radius:var(--r-pill);
  background:var(--accent);color:#06110D;font-weight:700;font-size:14.5px;
  box-shadow:0 14px 34px rgba(47,230,181,.30);
  opacity:0;visibility:hidden;transform:translateY(14px);transition:opacity .32s ease,transform .32s ease,visibility .32s;
}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{background:#3ff0c0;color:#06110D;transform:translateY(-2px);}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .hero-grid{gap:40px;}
  .float-card{left:0;}
}
@media (max-width:991.98px){
  :root{--sec-y:72px;}
  .nav-links{display:none;}
  .nav-right .btn-x{display:none;}
  .burger{display:flex;}
  .hero{min-height:76vh;}
  .hero-grid{grid-template-columns:1fr;gap:44px;}
  .hero-inner{padding:96px 0 72px;}
  .hero-sub{max-width:100%;}
  .demo-grid{grid-template-columns:1fr;gap:32px;}
  .quote-grid{grid-template-columns:1fr 1fr;}
  .news-grid{grid-template-columns:1fr 1fr;}
  .price-grid{grid-template-columns:1fr;max-width:560px;margin:0 auto;}
  .foot-cols{grid-template-columns:1fr 1fr;gap:32px;}
  .stats-bar{grid-template-columns:1fr 1fr;}
  .feat-row{gap:32px;}
}
@media (max-width:767.98px){
  .sec-head{margin-bottom:36px;}
  .quote-grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .feat-row{grid-template-columns:1fr;}
  .feat-row.rev .feat-copy{order:1;}
  .feat-row.rev .feat-visual{order:2;}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:44px 0;}
  .float-cta{
    right:16px;left:16px;bottom:16px;width:calc(100% - 32px);justify-content:center;
  }
}
@media (max-width:575.98px){
  :root{--sec-y:52px;}
  .container-x{padding:0 18px;}
  .nav-inner{height:62px;}
  .brand{font-size:16px;}
  .hero-inner{padding:78px 0 60px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn-x,.hero-actions .btn-ghost{width:100%;}
  .trust-row{gap:24px;}
  .trust-item .num{font-size:22px;}
  .stats-bar{grid-template-columns:1fr;}
  .foot-cols{grid-template-columns:1fr;}
  .sk-grid{grid-template-columns:repeat(2,1fr);}
  .plan-price .val{font-size:36px;}
  .faq-q{font-size:15px;padding:17px 18px;}
  .faq-a .inner{padding:0 18px 18px;font-size:14.5px;}
}

/* roulang page: article */
:root{
  --bg:#08070E;
  --bg-soft:#100E1A;
  --card:#14111F;
  --card-hi:#221E36;
  --primary:#2FE6B5;
  --primary-ink:#06110D;
  --secondary:#FF4D8D;
  --amber:#FFC14D;
  --text:#F2F0FA;
  --text-2:#B9B4CC;
  --text-3:#7C7791;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --r-card:16px;
  --r-btn:12px;
  --r-pill:999px;
  --r-input:10px;
  --r-badge:6px;
  --shadow:0 18px 40px rgba(0,0,0,.45);
  --glow:0 0 0 1px rgba(47,230,181,.25),0 0 24px rgba(47,230,181,.12);
  --sec:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);font-size:16px;line-height:1.75;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
body.nav-locked{overflow:hidden}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .24s ease,border-color .24s ease,background .24s ease}
button{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
::selection{background:rgba(47,230,181,.28);color:#fff}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-family:"JetBrains Mono","Barlow",ui-monospace,monospace;font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;height:68px;
  background:rgba(11,9,19,.9);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,rgba(47,230,181,.65),rgba(255,77,141,.5),transparent 85%);
}
.header-inner{height:68px;display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:-.3px;font-size:18px;white-space:nowrap}
.brand em{font-style:normal;color:var(--primary)}
.brand-dot{
  width:10px;height:10px;border-radius:50%;background:var(--primary);
  box-shadow:0 0 0 4px rgba(47,230,181,.14),0 0 14px rgba(47,230,181,.75);
  flex:0 0 auto;
}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link-x{
  position:relative;padding:9px 14px;border-radius:var(--r-btn);font-size:15px;color:var(--text-2);
}
.nav-link-x::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--secondary));opacity:0;transition:opacity .24s ease;
}
.nav-link-x:hover{color:var(--text);background:rgba(255,255,255,.04)}
.nav-link-x.active{color:var(--primary);box-shadow:0 0 8px rgba(47,230,181,.45)}
.nav-link-x.active::after{opacity:1}
.header-actions{display:flex;align-items:center;gap:12px}
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border-radius:var(--r-btn);border:1px solid transparent;
  background:var(--primary);color:var(--primary-ink);font-weight:700;font-size:15px;cursor:pointer;
  transition:transform .28s ease,box-shadow .28s ease,background .28s ease,border-color .28s ease,color .28s ease;
}
.btn-x:hover{background:#45efc3;transform:translateY(-1px);box-shadow:0 0 22px rgba(47,230,181,.36);color:var(--primary-ink)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border-radius:var(--r-btn);background:transparent;color:var(--text);
  border:1px solid var(--line-strong);font-weight:600;font-size:15px;cursor:pointer;
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease,color .28s ease;
}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-1px)}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:600;font-size:14px}
.btn-text svg{transition:transform .28s ease}
.btn-text:hover svg{transform:translateX(4px)}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--r-btn);background:rgba(255,255,255,.05);
  border:1px solid var(--line);cursor:pointer;padding:0;place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);margin:3px auto;border-radius:2px;transition:.24s ease}
.nav-drawer-cta{display:none}

/* ---------- article hero ---------- */
.article-hero{
  position:relative;padding:56px 0 48px;border-bottom:1px solid var(--line);
  background-image:linear-gradient(rgba(8,7,14,.72),rgba(8,7,14,.94)),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.article-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(420px 220px at 12% 18%,rgba(47,230,181,.12),transparent 70%),
    radial-gradient(380px 220px at 88% 82%,rgba(255,77,141,.12),transparent 70%);
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);position:relative}
.crumbs a:hover{color:var(--primary)}
.crumbs .sep{opacity:.6}
.crumbs .current{color:var(--text-2)}
.crumbs .end{color:var(--primary)}
.hero-cat{
  display:inline-flex;align-items:center;gap:6px;margin:22px 0 16px;padding:5px 12px;border-radius:var(--r-badge);
  font-size:12px;font-weight:600;color:var(--primary);background:rgba(47,230,181,.12);border:1px solid rgba(47,230,181,.3);
  position:relative;
}
.hero-cat.magenta{color:var(--secondary);background:rgba(255,77,141,.12);border-color:rgba(255,77,141,.3)}
.article-hero h1{
  position:relative;font-size:clamp(28px,4.2vw,52px);font-weight:800;line-height:1.18;letter-spacing:-.5px;
  max-width:900px;
}
.article-hero h1 .hl{color:var(--primary)}
.meta-row{
  position:relative;display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin-top:22px;
  font-size:13px;color:var(--text-3);
}
.meta-item{display:inline-flex;align-items:center;gap:6px}
.meta-item svg{flex:0 0 auto;color:var(--text-3)}
.meta-actions{margin-left:auto;display:flex;gap:10px}
.icon-btn{
  display:inline-flex;align-items:center;gap:6px;padding:8px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text-2);font-size:13px;cursor:pointer;
  transition:.24s ease;
}
.icon-btn:hover{border-color:var(--primary);color:var(--primary);box-shadow:0 0 16px rgba(47,230,181,.18)}

/* ---------- layout ---------- */
.article-wrap{padding:var(--sec) 0}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:44px;align-items:start}
.article-main{min-width:0}
.article-body{
  max-width:820px;font-size:17px;line-height:1.9;color:#E7E4F3;
}
.article-body > * + *{margin-top:1.15em}
.article-body p{margin:0 0 1.15em}
.article-body h2{
  position:relative;font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.35;color:var(--text);
  margin:2.2em 0 .9em;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--primary),rgba(47,230,181,.25));
}
.article-body h3{font-size:20px;font-weight:700;line-height:1.45;margin:1.9em 0 .7em;color:var(--text)}
.article-body h4{font-size:17px;font-weight:700;margin:1.6em 0 .6em;color:var(--text-2)}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:4px}
.article-body li{position:relative;padding-left:22px;margin-bottom:.55em}
.article-body ul > li::before{
  content:"";position:absolute;left:2px;top:.72em;width:10px;height:2px;border-radius:2px;background:var(--primary);
}
.article-body ol{counter-reset:li}
.article-body ol > li{counter-increment:li}
.article-body ol > li::before{
  content:counter(li);position:absolute;left:0;top:0;font-size:13px;font-weight:700;color:var(--secondary);
  font-family:"JetBrains Mono",ui-monospace,monospace;
}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(47,230,181,.35)}
.article-body a:hover{color:#7df3d4}
.article-body blockquote{
  margin:1.6em 0;padding:16px 20px;border-left:2px solid var(--secondary);border-radius:0 12px 12px 0;
  background:rgba(255,77,141,.07);color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:1.6em auto;box-shadow:var(--shadow)}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px}
.article-body pre{
  background:#0D0B16;border:1px solid var(--line);border-radius:12px;padding:18px 20px;overflow-x:auto;
  font-family:"JetBrains Mono",ui-monospace,monospace;font-size:14px;line-height:1.7;color:#CFC9E6;
}
.article-body code{
  font-family:"JetBrains Mono",ui-monospace,monospace;font-size:.92em;background:rgba(255,255,255,.06);
  padding:2px 6px;border-radius:6px;color:#9FF3DD;
}
.article-body pre code{background:none;padding:0;color:inherit}
.article-body hr{border:0;height:1px;background:var(--line);margin:2.4em 0}
.table-scroll{overflow-x:auto;margin:1.6em 0;border:1px solid var(--line);border-radius:12px}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;min-width:520px}
.article-body th,.article-body td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--line)}
.article-body thead th{background:rgba(255,255,255,.04);color:var(--text);font-weight:700;font-size:13px;letter-spacing:.4px}
.article-body tbody tr:nth-child(odd){background:rgba(255,255,255,.015)}
.article-body tbody tr:hover{background:rgba(47,230,181,.05)}
.article-body strong{color:#fff;font-weight:700}

.empty-state{
  display:grid;place-items:center;gap:14px;text-align:center;padding:64px 24px;border:1px dashed var(--line-strong);
  border-radius:var(--r-card);background:var(--card);
}
.empty-state svg{color:var(--text-3)}
.empty-state p{color:var(--text-2);margin:0}

/* ---------- article footer blocks ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:40px}
.tag{
  display:inline-flex;align-items:center;padding:6px 13px;border-radius:var(--r-pill);font-size:13px;
  color:var(--text-2);background:rgba(255,255,255,.05);border:1px solid var(--line);transition:.24s ease;
}
.tag:hover{color:var(--primary);border-color:rgba(47,230,181,.35)}
.tag.magenta{color:var(--secondary);background:rgba(255,77,141,.12);border-color:rgba(255,77,141,.3)}
.back-cat{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:32px;padding:20px 22px;border-radius:var(--r-card);background:var(--card);border:1px solid var(--line);
}
.back-cat strong{font-size:16px}
.back-cat p{color:var(--text-3);font-size:13px;margin:4px 0 0}

.related{margin-top:72px}
.block-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px}
.block-head h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;letter-spacing:-.3px}
.block-head p{color:var(--text-3);font-size:14px;margin-top:6px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.post-card:hover{transform:translateY(-4px);border-color:rgba(47,230,181,.35);box-shadow:var(--shadow),var(--glow)}
.post-card .thumb{position:relative;aspect-ratio:16/10;overflow:hidden}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.post-card:hover .thumb img{transform:scale(1.04)}
.post-card .thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(8,7,14,.75))}
.post-card .body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-card h3{font-size:17px;font-weight:700;line-height:1.5}
.post-card p{font-size:14px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card .foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-3)}

/* ---------- FAQ ---------- */
.faq-block{margin-top:72px;max-width:860px;margin-left:auto;margin-right:auto}
.accordion.faq-x .accordion-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);margin-bottom:12px;overflow:hidden;
}
.accordion.faq-x .accordion-button{
  background:transparent;color:var(--text);font-weight:700;font-size:16px;padding:18px 22px;box-shadow:none;
  border-radius:var(--r-card);
}
.accordion.faq-x .accordion-button:not(.collapsed){color:var(--primary);background:rgba(47,230,181,.06)}
.accordion.faq-x .accordion-button:focus{box-shadow:none;outline:none}
.accordion.faq-x .accordion-button::after{
  filter:invert(1) brightness(1.6);transition:transform .24s ease;
}
.accordion.faq-x .accordion-body{padding:0 22px 20px;color:var(--text-2);font-size:15px;line-height:1.85}

/* ---------- aside ---------- */
.side{position:sticky;top:92px;display:flex;flex-direction:column;gap:20px}
.side-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:20px}
.side-card h3{font-size:14px;font-weight:700;letter-spacing:.6px;color:var(--text-3);margin-bottom:14px}
.toc-list li{margin-bottom:2px}
.toc-list a{display:block;padding:7px 10px;border-left:2px solid transparent;font-size:14px;color:var(--text-2);border-radius:0 8px 8px 0}
.toc-list a:hover,.toc-list a.on{color:var(--primary);border-left-color:var(--primary);background:rgba(47,230,181,.06)}
.side-links li + li{border-top:1px solid var(--line)}
.side-links a{display:flex;align-items:center;justify-content:space-between;padding:11px 2px;font-size:14px;color:var(--text-2)}
.side-links a:hover{color:var(--primary)}
.cta-card{
  border:1px solid rgba(255,77,141,.32);background:linear-gradient(160deg,rgba(255,77,141,.12),rgba(20,17,31,.9));
  box-shadow:0 0 24px rgba(255,77,141,.12);
}
.cta-card h3{color:var(--text);font-size:17px;letter-spacing:0;margin-bottom:8px}
.cta-card p{font-size:14px;color:var(--text-2);margin-bottom:16px}

/* ---------- cta strip ---------- */
.cta-strip{
  margin-top:var(--sec);border-radius:var(--r-card);padding:44px 40px;position:relative;overflow:hidden;
  background:linear-gradient(120deg,#14111F,#100E1A);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-strip::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(360px 200px at 88% 20%,rgba(47,230,181,.16),transparent 70%);
}
.cta-strip h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;position:relative}
.cta-strip p{color:var(--text-2);font-size:15px;margin-top:8px;position:relative}
.cta-strip .btn-x{position:relative}

/* ---------- footer ---------- */
.site-footer{background:#07060C;border-top:1px solid var(--line);margin-top:var(--sec);position:relative}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,var(--primary),var(--secondary),transparent 80%);
}
.foot-cols{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px;padding:64px 0 44px}
.foot-brand p{color:var(--text-3);font-size:14px;margin-top:14px;max-width:320px}
.foot-col h4{font-size:14px;font-weight:700;margin-bottom:16px;color:var(--text)}
.foot-col ul li{margin-bottom:10px}
.foot-col a{color:var(--text-2);font-size:14px}
.foot-col a:hover{color:var(--primary)}
.contact-line{color:var(--text-3);font-size:14px;margin-bottom:10px}
.contact-line em{font-style:normal;color:var(--primary)}
.foot-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:22px 0;border-top:1px solid var(--line);font-size:13px;color:var(--text-3);
}

/* ---------- float cta ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:70;display:none;align-items:center;gap:8px;
  padding:13px 22px;border-radius:var(--r-pill);background:var(--primary);color:var(--primary-ink);
  font-weight:700;font-size:15px;box-shadow:0 14px 32px rgba(0,0,0,.5),0 0 20px rgba(47,230,181,.28);
  opacity:0;transform:translateY(12px);transition:opacity .3s ease,transform .3s ease;pointer-events:none;
}
.float-cta.show{display:inline-flex;opacity:1;transform:translateY(0);pointer-events:auto}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .side{position:static;flex-direction:row;flex-wrap:wrap}
  .side-card{flex:1 1 260px}
}
@media (max-width:991.98px){
  :root{--sec:72px}
  .nav-toggle{display:grid}
  .header-cta{display:none}
  .nav-links{
    position:fixed;top:68px;right:0;bottom:0;width:min(88vw,340px);background:#0B0913;
    border-left:1px solid var(--line);flex-direction:column;align-items:stretch;gap:6px;padding:24px 20px;
    transform:translateX(105%);transition:transform .3s ease;margin-left:0;overflow-y:auto;z-index:65;
  }
  .nav-links.open{transform:translateX(0)}
  .nav-link-x{padding:14px 16px;font-size:16px;border:1px solid transparent}
  .nav-link-x::after{display:none}
  .nav-link-x.active{border-color:rgba(47,230,181,.3);background:rgba(47,230,181,.08)}
  .nav-drawer-cta{display:inline-flex;margin-top:18px}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .foot-cols{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;padding:52px 0 36px}
  .meta-actions{margin-left:0}
}
@media (max-width:767.98px){
  :root{--sec:52px}
  .container-x{padding:0 18px}
  .brand{font-size:16px}
  .article-hero{padding:40px 0 36px}
  .article-body{font-size:16px;line-height:1.85}
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .side{flex-direction:column}
  .cta-strip{padding:32px 22px}
  .foot-cols{grid-template-columns:minmax(0,1fr)}
  .float-cta{right:16px;left:16px;bottom:16px;width:calc(100% - 32px);justify-content:center}
}
@media (max-width:519.98px){
  .btn-x,.btn-ghost{padding:10px 16px;font-size:14px}
  .article-hero h1{font-size:26px}
  .meta-row{gap:12px;font-size:12px}
}

/* roulang page: category1 */
:root{
  --bg:#08070E;
  --bg-block:#100E1A;
  --bg-card:#14111F;
  --bg-float:#221E36;
  --mint:#2FE6B5;
  --mint-deep:#06110D;
  --magenta:#FF4D8D;
  --amber:#FFC14D;
  --text:#F2F0FA;
  --text-2:#B9B4CC;
  --text-3:#7C7791;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --r-card:16px;
  --r-btn:12px;
  --r-pill:999px;
  --r-input:10px;
  --r-badge:6px;
  --shadow-card:0 18px 40px rgba(0,0,0,.45);
  --shadow-glow:0 0 0 1px rgba(47,230,181,.25), 0 0 24px rgba(47,230,181,.12);
  --shadow-glow-m:0 0 0 1px rgba(255,77,141,.28), 0 0 24px rgba(255,77,141,.14);
  --container:1200px;
  --nav-h:68px;
}

/* ============ reset / base ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,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;transition:color .25s ease;}
a:hover{color:var(--mint);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;}
:focus-visible{outline:2px solid var(--mint);outline-offset:2px;border-radius:4px;}

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

/* ============ 按钮 ============ */
.btn-x{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  letter-spacing:.2px;
  transition:transform .25s ease, box-shadow .25s ease, background-color .25s ease, border-color .25s ease, color .25s ease;
  white-space:nowrap;
}
.btn-primary-x{
  background:var(--mint);
  color:var(--mint-deep);
  box-shadow:0 10px 26px rgba(47,230,181,.18);
}
.btn-primary-x:hover{
  background:#41f0c1;
  color:var(--mint-deep);
  transform:translateY(-1px);
  box-shadow:0 12px 30px rgba(47,230,181,.3), 0 0 0 1px rgba(47,230,181,.4);
}
.btn-ghost-x{
  background:transparent;
  color:var(--text);
  border:1px solid var(--line-strong);
}
.btn-ghost-x:hover{
  color:var(--mint);
  border-color:rgba(47,230,181,.55);
  transform:translateY(-1px);
}
.btn-text-x{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--mint);
  background:none;
  padding:0;
}
.btn-text-x svg{transition:transform .25s ease;}
.btn-text-x:hover svg{transform:translateX(4px);}
.btn-x:disabled,.btn-x[aria-disabled="true"]{opacity:.45;pointer-events:none;}

/* ============ 徽章 / 标签 ============ */
.badge-x{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  font-weight:600;
  line-height:1;
  padding:6px 10px;
  border-radius:var(--r-badge);
  letter-spacing:.3px;
}
.badge-mint{background:rgba(47,230,181,.12);color:var(--mint);border:1px solid rgba(47,230,181,.3);}
.badge-magenta{background:rgba(255,77,141,.12);color:var(--magenta);border:1px solid rgba(255,77,141,.3);}
.badge-amber{background:rgba(255,193,77,.12);color:var(--amber);border:1px solid rgba(255,193,77,.3);}
.badge-plain{background:rgba(255,255,255,.05);color:var(--text-2);border:1px solid var(--line);}

.tag-row{display:flex;flex-wrap:wrap;gap:8px;}

/* ============ 顶栏 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1000;
  height:var(--nav-h);
  background:rgba(11,9,19,.9);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  border-image:linear-gradient(90deg, rgba(47,230,181,.45), rgba(255,77,141,.35)) 1;
}
.header-inner{
  height:var(--nav-h);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:800;
  letter-spacing:-.3px;
  color:var(--text);
  flex-shrink:0;
}
.brand em{color:var(--mint);font-style:normal;}
.brand:hover{color:var(--text);}
.brand-dot{
  width:10px;height:10px;border-radius:50%;
  background:var(--mint);
  box-shadow:0 0 0 4px rgba(47,230,181,.16), 0 0 14px rgba(47,230,181,.7);
  flex-shrink:0;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:auto;
}
.nav-link-x{
  position:relative;
  font-size:14.5px;
  font-weight:500;
  color:var(--text-2);
  padding:8px 14px;
  border-radius:8px;
  transition:color .25s ease, background-color .25s ease;
}
.nav-link-x::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:2px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--mint),var(--magenta));
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .28s ease;
}
.nav-link-x:hover{color:var(--mint);background:rgba(47,230,181,.06);}
.nav-link-x:hover::after{transform:scaleX(1);}
.nav-link-x.active{
  color:var(--mint);
  text-shadow:0 0 8px rgba(47,230,181,.5);
}
.nav-link-x.active::after{transform:scaleX(1);background:var(--mint);}

.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.header-actions .btn-x{height:40px;padding:0 18px;font-size:14px;}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:10px;
  border:1px solid var(--line-strong);
  align-items:center;justify-content:center;
}
.nav-toggle span{
  display:block;width:18px;height:2px;background:var(--text);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);border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(4,3,9,.72);
  opacity:0;visibility:hidden;transition:opacity .3s ease, visibility .3s ease;z-index:1100;
}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:min(84vw,340px);
  background:var(--bg-block);
  border-left:1px solid var(--line);
  z-index:1200;
  transform:translateX(102%);
  transition:transform .34s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;
  padding:22px 20px 22px;
}
.drawer.open{transform:translateX(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px;}
.drawer-close{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--line-strong);
  display:flex;align-items:center;justify-content:center;font-size:18px;color:var(--text-2);
}
.drawer-close:hover{color:var(--mint);border-color:rgba(47,230,181,.5);}
.drawer-nav{display:flex;flex-direction:column;gap:4px;}
.drawer-nav a{
  padding:13px 14px;border-radius:10px;font-size:15.5px;color:var(--text-2);
  border:1px solid transparent;
}
.drawer-nav a:hover,.drawer-nav a.active{
  color:var(--mint);background:rgba(47,230,181,.08);border-color:rgba(47,230,181,.22);
}
.drawer-foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--line);}
.drawer-foot .btn-x{width:100%;}

/* ============ 页头 Hero ============ */
.page-hero{
  position:relative;
  padding:84px 0 72px;
  overflow:hidden;
  isolation:isolate;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center 30%;
  opacity:.42;
  z-index:-2;
}
.page-hero::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(8,7,14,.78) 0%, rgba(8,7,14,.9) 55%, var(--bg) 100%);
  z-index:-1;
}
.hero-glow{
  position:absolute;
  width:420px;height:420px;border-radius:50%;
  filter:blur(120px);
  opacity:.12;
  pointer-events:none;
  z-index:-1;
}
.hero-glow.g-mint{background:var(--mint);top:-120px;left:-80px;}
.hero-glow.g-magenta{background:var(--magenta);bottom:-160px;right:-60px;}

.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);margin-bottom:22px;
}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--mint);}
.crumb .sep{color:rgba(255,255,255,.2);}
.crumb .now{color:var(--mint);}

.page-hero h1{
  font-size:clamp(28px,4.2vw,52px);
  font-weight:800;
  line-height:1.18;
  letter-spacing:-.5px;
  max-width:820px;
}
.page-hero h1 .hl-mint{color:var(--mint);}
.hero-sub{
  margin-top:18px;
  font-size:clamp(15px,1.5vw,17.5px);
  color:var(--text-2);
  max-width:660px;
  line-height:1.8;
}
.hero-tags{margin-top:26px;display:flex;flex-wrap:wrap;gap:10px;}
.hero-meta{
  margin-top:34px;
  display:flex;flex-wrap:wrap;gap:14px 34px;
  padding-top:24px;
  border-top:1px solid var(--line);
}
.hero-meta div{font-size:13px;color:var(--text-3);}
.hero-meta strong{
  display:block;
  font-family:"JetBrains Mono","Barlow",ui-monospace,monospace;
  font-size:24px;font-weight:700;color:var(--text);line-height:1.3;
  letter-spacing:-.5px;
}
.hero-meta strong em{color:var(--mint);font-style:normal;}

/* ============ 区块通用 ============ */
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.sec-head{max-width:700px;margin-bottom:44px;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--mint);
  letter-spacing:1.6px;text-transform:uppercase;margin-bottom:14px;
}
.sec-kicker::before{
  content:"";width:22px;height:2px;border-radius:2px;background:var(--mint);
}
.sec-head h2{
  font-size:clamp(22px,2.6vw,34px);
  font-weight:700;line-height:1.3;letter-spacing:-.4px;
}
.sec-head p{margin-top:14px;color:var(--text-2);font-size:15.5px;line-height:1.8;}

/* ============ 导语 ============ */
.intro-grid{
  display:grid;
  grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);
  gap:48px;
  align-items:start;
}
.intro-text p{
  color:var(--text-2);
  font-size:16.5px;
  line-height:1.9;
  margin-bottom:18px;
}
.intro-text p:last-child{margin-bottom:0;}
.intro-text strong{color:var(--text);font-weight:600;}

.intro-side{
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 24px;
  box-shadow:var(--shadow-card);
}
.intro-side h3{
  font-size:17px;font-weight:700;margin-bottom:18px;
  display:flex;align-items:center;gap:10px;
}
.intro-side h3::before{
  content:"";width:4px;height:18px;border-radius:2px;background:var(--mint);
}
.side-list li{
  display:flex;gap:12px;
  padding:11px 0;
  border-bottom:1px dashed var(--line);
  font-size:14.5px;color:var(--text-2);
}
.side-list li:last-child{border-bottom:none;padding-bottom:0;}
.side-list li svg{flex-shrink:0;margin-top:5px;}

/* ============ 要点条 ============ */
.point-bar{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
}
.point-cell{
  background:var(--bg-block);
  padding:26px 22px;
  transition:background-color .28s ease;
}
.point-cell:hover{background:var(--bg-card);}
.point-cell .num{
  font-family:"JetBrains Mono","Barlow",ui-monospace,monospace;
  font-size:30px;font-weight:700;color:var(--mint);line-height:1.1;letter-spacing:-1px;
}
.point-cell .num.m{color:var(--magenta);}
.point-cell .lb{margin-top:8px;font-size:13.5px;color:var(--text-3);line-height:1.6;}

/* ============ 对比区（规格对照） ============ */
.compare-wrap{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.compare-col{
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px 26px;
  box-shadow:var(--shadow-card);
  transition:transform .28s ease, border-color .28s ease, box-shadow .28s ease;
}
.compare-col:hover{transform:translateY(-4px);border-color:rgba(47,230,181,.35);box-shadow:var(--shadow-card),var(--shadow-glow);}
.compare-col.plus{border-color:rgba(255,77,141,.3);}
.compare-col.plus:hover{border-color:rgba(255,77,141,.5);box-shadow:var(--shadow-card),var(--shadow-glow-m);}
.compare-head{padding-bottom:18px;border-bottom:1px solid var(--line);margin-bottom:6px;}
.compare-head h3{margin-top:14px;font-size:20px;font-weight:700;}
.compare-head span.desc{display:block;margin-top:8px;font-size:13.5px;color:var(--text-3);}
.compare-row{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:18px;
  padding:14px 0;
  border-bottom:1px dashed var(--line);
}
.compare-row:last-child{border-bottom:none;}
.compare-row .k{font-size:14.5px;color:var(--text-2);flex:1;min-width:0;}
.compare-row .v{
  font-size:14px;font-weight:600;color:var(--text);
  font-family:"JetBrains Mono","Barlow",ui-monospace,monospace;
  text-align:right;flex-shrink:0;
}
.compare-row .v.mint{color:var(--mint);}
.compare-row .v.magenta{color:var(--magenta);}

/* ============ 条目卡列表（纵向） ============ */
.spec-list{display:flex;flex-direction:column;gap:20px;}
.spec-item{
  display:grid;
  grid-template-columns:230px minmax(0,1fr);
  gap:26px;
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:18px;
  box-shadow:var(--shadow-card);
  transition:transform .28s ease, border-color .28s ease, box-shadow .28s ease;
  position:relative;
  overflow:hidden;
}
.spec-item::before{
  content:"";
  position:absolute;top:0;left:0;width:2px;height:0;
  background:linear-gradient(180deg,var(--mint),var(--magenta));
  transition:height .35s ease;
}
.spec-item:hover{transform:translateY(-4px);border-color:rgba(47,230,181,.35);box-shadow:var(--shadow-card),var(--shadow-glow);}
.spec-item:hover::before{height:100%;}
.spec-thumb{
  border-radius:12px;
  overflow:hidden;
  background:linear-gradient(135deg,#1B1730,#100E1A);
  aspect-ratio:16/10;
  position:relative;
}
.spec-thumb img{width:100%;height:100%;object-fit:cover;}
.spec-body{padding:6px 8px 6px 0;display:flex;flex-direction:column;}
.spec-body h3{font-size:19px;font-weight:700;line-height:1.45;margin-bottom:10px;}
.spec-body p{font-size:14.5px;color:var(--text-2);line-height:1.8;margin-bottom:14px;}
.spec-body .tag-row{margin-bottom:16px;}
.spec-body .btn-text-x{margin-top:auto;}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-item{
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:14px;
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .28s ease, box-shadow .28s ease;
}
.faq-item.open{border-color:rgba(47,230,181,.35);box-shadow:0 0 0 1px rgba(47,230,181,.12);}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 22px;
  text-align:left;
  font-size:16px;font-weight:600;color:var(--text);
  transition:color .25s ease;
}
.faq-q:hover{color:var(--mint);}
.faq-item.open .faq-q{color:var(--mint);}
.faq-q .chev{
  flex-shrink:0;width:22px;height:22px;
  display:flex;align-items:center;justify-content:center;
  color:var(--text-3);transition:transform .26s ease,color .26s ease;
}
.faq-item.open .chev{transform:rotate(180deg);color:var(--mint);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .28s ease;
}
.faq-a p{
  padding:0 22px 22px;
  font-size:14.8px;color:var(--text-2);line-height:1.9;
}

/* ============ CTA 条 ============ */
.cta-band{
  position:relative;
  border-radius:20px;
  border:1px solid var(--line);
  background:linear-gradient(120deg, rgba(47,230,181,.08), rgba(255,77,141,.07) 65%, transparent);
  padding:46px 44px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:34px;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;right:-90px;top:-90px;width:280px;height:280px;border-radius:50%;
  background:var(--magenta);filter:blur(110px);opacity:.14;pointer-events:none;
}
.cta-band h2{font-size:clamp(21px,2.2vw,28px);font-weight:700;letter-spacing:-.3px;}
.cta-band p{margin-top:10px;font-size:14.8px;color:var(--text-2);max-width:520px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex-shrink:0;position:relative;z-index:1;}

/* ============ 页脚 ============ */
.site-footer{
  background:#07060C;
  border-top:1px solid transparent;
  border-image:linear-gradient(90deg, rgba(47,230,181,.35), rgba(255,77,141,.28)) 1;
  padding:64px 0 26px;
  margin-top:24px;
}
.foot-cols{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.4fr;
  gap:40px;
}
.foot-brand .brand{font-size:19px;margin-bottom:16px;}
.foot-brand p{font-size:14px;color:var(--text-3);line-height:1.85;max-width:340px;}
.foot-col h4{
  font-size:14px;font-weight:700;color:var(--text);margin-bottom:18px;letter-spacing:.4px;
}
.foot-col ul li{margin-bottom:11px;}
.foot-col ul a{font-size:14px;color:var(--text-3);}
.foot-col ul a:hover{color:var(--mint);}
.contact-line{font-size:13.5px;color:var(--text-3);line-height:1.85;margin-bottom:9px;}
.contact-line em{color:var(--text-2);font-style:normal;}
.foot-bottom{
  margin-top:48px;
  padding-top:22px;
  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);
}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;
  right:24px;bottom:24px;
  z-index:900;
  display:inline-flex;align-items:center;gap:8px;
  height:50px;padding:0 24px;
  border-radius:var(--r-pill);
  background:var(--mint);
  color:var(--mint-deep);
  font-size:14.5px;font-weight:700;
  box-shadow:0 14px 34px rgba(47,230,181,.28);
  opacity:0;
  visibility:hidden;
  transform:translateY(14px);
  transition:opacity .3s ease, transform .3s ease, visibility .3s ease, box-shadow .25s ease;
}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{color:var(--mint-deep);box-shadow:0 16px 40px rgba(47,230,181,.45);transform:translateY(-2px);}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .container-x{padding:0 22px;}
  .intro-grid{grid-template-columns:1fr;gap:32px;}
  .foot-cols{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
  .foot-brand{grid-column:1 / -1;}
}
@media (max-width:991px){
  .nav-links{display:none;}
  .nav-toggle{display:flex;}
  .section{padding:72px 0;}
  .section-tight{padding:56px 0;}
  .compare-wrap{grid-template-columns:1fr;}
  .point-bar{grid-template-columns:repeat(2,1fr);}
  .spec-item{grid-template-columns:190px minmax(0,1fr);gap:20px;}
  .foot-cols{grid-template-columns:1fr 1fr;}
  .foot-brand{grid-column:1 / -1;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 30px;}
}
@media (max-width:767px){
  .container-x{padding:0 18px;}
  .page-hero{padding:60px 0 52px;}
  .section{padding:52px 0;}
  .section-tight{padding:44px 0;}
  .sec-head{margin-bottom:32px;}
  .spec-item{grid-template-columns:1fr;padding:16px;}
  .spec-thumb{aspect-ratio:16/9;}
  .spec-body{padding:4px 4px 6px;}
  .point-bar{grid-template-columns:1fr 1fr;}
  .point-cell{padding:20px 16px;}
  .foot-cols{grid-template-columns:1fr;gap:28px;}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .float-cta{
    right:16px;left:16px;bottom:16px;
    width:calc(100% - 32px);
    justify-content:center;
  }
  .cta-band{padding:30px 22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn-x{flex:1;}
}
@media (max-width:519px){
  body{font-size:15.5px;}
  .page-hero h1{font-size:27px;}
  .hero-meta{gap:12px 22px;}
  .hero-meta strong{font-size:21px;}
  .point-bar{grid-template-columns:1fr;}
  .btn-x{height:44px;padding:0 18px;font-size:14px;}
  .header-actions .btn-x{display:none;}
  .faq-q{padding:17px 16px;font-size:15px;}
  .faq-a p{padding:0 16px 18px;}
  .compare-col{padding:22px 18px;}
  .compare-row{flex-direction:column;gap:6px;}
  .compare-row .v{text-align:left;}
}

/* roulang page: category2 */
:root{
  --bg:#08070E;
  --bg-2:#100E1A;
  --card:#14111F;
  --card-hi:#221E36;
  --primary:#2FE6B5;
  --primary-ink:#06110D;
  --magenta:#FF4D8D;
  --amber:#FFC14D;
  --text:#F2F0FA;
  --muted:#B9B4CC;
  --weak:#7C7791;
  --line:rgba(255,255,255,.08);
  --line-soft:rgba(255,255,255,.06);
  --r-card:16px;
  --r-btn:12px;
  --r-input:10px;
  --r-badge:6px;
  --shadow:0 18px 40px rgba(0,0,0,.45);
  --shadow-hi:0 0 0 1px rgba(255,77,141,.28),0 0 26px rgba(255,77,141,.14);
  --shadow-green:0 0 0 1px rgba(47,230,181,.25),0 0 24px rgba(47,230,181,.12);
  --gap-section:96px;
  --bs-primary:#2FE6B5;
  --bs-body-bg:#08070E;
  --bs-body-color:#F2F0FA;
  --bs-border-color:rgba(255,255,255,.08);
  --bs-border-radius:16px;
  --bs-link-color:#2FE6B5;
  --bs-link-hover-color:#FF4D8D;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .22s ease}
a:hover{color:var(--magenta)}
h1,h2,h3,h4,h5{margin:0;letter-spacing:-.3px;color:var(--text)}
p{margin:0 0 .9em}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
.mono{font-family:"JetBrains Mono","Barlow",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-variant-numeric:tabular-nums}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(11,9,19,.9);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";display:block;height:1px;
  background:linear-gradient(90deg,rgba(47,230,181,0),rgba(47,230,181,.55),rgba(255,77,141,.55),rgba(255,77,141,0));
}
.header-inner{display:flex;align-items:center;gap:24px;height:68px}
.brand{display:inline-flex;align-items:center;gap:9px;font-size:19px;font-weight:800;color:var(--text);letter-spacing:-.4px}
.brand:hover{color:var(--text)}
.brand em{font-style:normal;color:var(--primary)}
.brand-dot{
  width:10px;height:10px;border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 0 4px rgba(47,230,181,.14),0 0 14px rgba(47,230,181,.7);
  flex:0 0 auto;
}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link-x{
  position:relative;
  display:inline-block;
  padding:9px 13px;
  font-size:15px;
  font-weight:500;
  color:var(--muted);
  border-radius:10px;
  transition:color .22s ease,background .22s ease;
}
.nav-link-x:hover{color:var(--primary);background:rgba(47,230,181,.06)}
.nav-link-x.active{color:var(--primary);background:rgba(47,230,181,.08);text-shadow:0 0 10px rgba(47,230,181,.45)}
.nav-link-x.active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;
  background:var(--primary);border-radius:2px;box-shadow:0 0 8px rgba(47,230,181,.8);
}
.header-cta{
  margin-left:8px;
  display:inline-flex;align-items:center;gap:8px;
  background:var(--primary);color:var(--primary-ink);
  font-weight:700;font-size:14px;
  padding:10px 18px;border-radius:var(--r-btn);
  border:1px solid transparent;
  transition:transform .22s ease,box-shadow .22s ease,filter .22s ease;
}
.header-cta:hover{color:var(--primary-ink);filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 0 22px rgba(47,230,181,.35)}
.burger{
  display:none;margin-left:auto;
  width:44px;height:44px;border-radius:12px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);color:var(--text);
  font-size:18px;line-height:1;
}
.burger:hover{border-color:rgba(47,230,181,.35);color:var(--primary)}

/* drawer */
.drawer-mask{position:fixed;inset:0;background:rgba(4,3,9,.72);opacity:0;pointer-events:none;transition:opacity .28s ease;z-index:1050}
.drawer-mask.on{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:min(86vw,360px);
  background:linear-gradient(180deg,#100E1A,#08070E);
  border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .3s cubic-bezier(.4,0,.2,1);
  z-index:1060;display:flex;flex-direction:column;padding:20px;
}
.drawer.on{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-close{width:40px;height:40px;border-radius:10px;background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--text)}
.drawer-nav{display:flex;flex-direction:column;gap:6px;padding:20px 0;flex:1}
.drawer-nav a{padding:14px 14px;border-radius:12px;color:var(--muted);font-size:16px;font-weight:500;border:1px solid transparent}
.drawer-nav a:hover{background:rgba(255,77,141,.07);color:var(--text);border-color:rgba(255,77,141,.24)}
.drawer-nav a.active{color:var(--primary);background:rgba(47,230,181,.08);border-color:rgba(47,230,181,.24)}
.drawer-foot{display:grid;gap:10px}
.btn-x{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-btn);font-weight:700;font-size:15px;padding:11px 20px;border:1px solid transparent;cursor:pointer;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease,filter .22s ease,color .22s ease}
.btn-solid{background:var(--primary);color:var(--primary-ink)}
.btn-solid:hover{color:var(--primary-ink);filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 0 22px rgba(47,230,181,.35)}
.btn-magenta{background:var(--magenta);color:#21060F}
.btn-magenta:hover{color:#21060F;filter:brightness(1.07);transform:translateY(-1px);box-shadow:0 0 24px rgba(255,77,141,.4)}
.btn-ghost{background:transparent;color:var(--text);border-color:rgba(255,255,255,.16)}
.btn-ghost:hover{color:var(--text);border-color:rgba(47,230,181,.55);transform:translateY(-1px)}
.btn-text{background:none;border:none;color:var(--primary);padding:6px 0;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.btn-text i{transition:transform .22s ease}
.btn-text:hover{color:var(--magenta)}
.btn-text:hover i{transform:translateX(4px)}

/* ---------- page head ---------- */
.page-head{
  position:relative;overflow:hidden;
  padding:64px 0 56px;
  background:linear-gradient(rgba(8,7,14,.72),rgba(8,7,14,.9)),url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.page-head::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(circle,rgba(255,77,141,.5) 1px,transparent 1px);
  background-size:24px 24px;opacity:.1;pointer-events:none;
}
.page-head::after{
  content:"";position:absolute;width:520px;height:520px;right:-160px;top:-220px;
  background:radial-gradient(circle,rgba(255,77,141,.22),transparent 65%);
  filter:blur(120px);pointer-events:none;
}
.page-head .container-x{position:relative;z-index:2}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--weak);margin-bottom:18px}
.crumb a{color:var(--weak)}
.crumb a:hover{color:var(--primary)}
.crumb i{font-size:10px;opacity:.7}
.crumb .now{color:var(--magenta)}
.tagline{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.4px;
  color:var(--magenta);background:rgba(255,77,141,.12);
  border:1px solid rgba(255,77,141,.3);border-radius:var(--r-badge);
  padding:5px 10px;margin-bottom:18px;
}
.page-head h1{
  font-size:clamp(28px,4.2vw,52px);font-weight:800;line-height:1.18;letter-spacing:-.5px;
  max-width:19em;
}
.page-head h1 span{color:var(--magenta)}
.page-head .lead{
  margin-top:18px;max-width:660px;color:var(--muted);font-size:17px;
}
.head-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.head-metrics{display:flex;flex-wrap:wrap;gap:32px;margin-top:36px;padding-top:26px;border-top:1px solid var(--line)}
.metric b{display:block;font-size:26px;font-weight:800;color:var(--text);letter-spacing:-.5px}
.metric small{display:block;color:var(--weak);font-size:13px;margin-top:2px}

/* ---------- sections ---------- */
.section{padding:var(--gap-section) 0}
.section-tight{padding:64px 0}
.section-alt{background:var(--bg-2);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(22px,2.6vw,34px);font-weight:700;position:relative;padding-left:16px}
.sec-head h2::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:2px;background:var(--magenta);box-shadow:0 0 16px rgba(255,77,141,.5)}
.sec-head p{margin-top:14px;color:var(--muted);font-size:16px}
.eyebrow{font-size:12px;font-weight:700;letter-spacing:1.4px;color:var(--weak);text-transform:uppercase;margin-bottom:12px;display:block}

/* intro */
.intro-grid{display:grid;grid-template-columns:1.4fr .9fr;gap:40px;align-items:start}
.intro-copy p{color:var(--muted);font-size:17px;line-height:1.9}
.intro-copy p strong{color:var(--text);font-weight:600}
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--shadow);position:relative;overflow:hidden;
}
.side-card::before{content:"";position:absolute;left:0;top:0;width:3px;height:52px;background:linear-gradient(180deg,var(--magenta),transparent)}
.side-card h3{font-size:18px;margin-bottom:16px}
.side-list li{display:flex;gap:10px;padding:11px 0;border-bottom:1px dashed var(--line);color:var(--muted);font-size:15px}
.side-list li:last-child{border-bottom:none}
.side-list i{color:var(--magenta);margin-top:4px;font-size:13px}

/* bullet strip */
.point-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.point{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.point:hover{transform:translateY(-4px);border-color:rgba(255,77,141,.35);box-shadow:var(--shadow-hi)}
.point .ico{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:rgba(255,77,141,.12);color:var(--magenta);border:1px solid rgba(255,77,141,.28);margin-bottom:14px;
}
.point h3{font-size:17px;margin-bottom:8px}
.point p{color:var(--muted);font-size:14.5px;margin:0}

/* alternating */
.alt-row{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.alt-row + .alt-row{margin-top:72px}
.alt-row.rev .alt-media{order:2}
.alt-row.rev .alt-body{order:1}
.alt-media{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow);background:var(--card);
}
.alt-media img{width:100%;height:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .6s ease}
.alt-media:hover img{transform:scale(1.04)}
.alt-media .chip{
  position:absolute;left:14px;top:14px;
  font-size:12px;font-weight:600;padding:5px 10px;border-radius:var(--r-badge);
  background:rgba(8,7,14,.78);border:1px solid rgba(255,77,141,.4);color:var(--magenta);
  backdrop-filter:blur(6px);
}
.alt-media .bar{
  position:absolute;left:0;right:0;bottom:0;height:44px;
  background:linear-gradient(180deg,transparent,rgba(8,7,14,.88));
  display:flex;align-items:center;gap:10px;padding:0 14px;
}
.wave{display:flex;align-items:flex-end;gap:3px;height:16px}
.wave span{width:3px;background:var(--magenta);border-radius:2px;opacity:.85;animation:pulse 1.4s ease-in-out infinite}
.wave span:nth-child(1){height:6px;animation-delay:0s}
.wave span:nth-child(2){height:14px;animation-delay:.15s}
.wave span:nth-child(3){height:9px;animation-delay:.3s}
.wave span:nth-child(4){height:16px;animation-delay:.45s}
.wave span:nth-child(5){height:7px;animation-delay:.6s}
.wave span:nth-child(6){height:12px;animation-delay:.75s}
@keyframes pulse{0%,100%{transform:scaleY(.6)}50%{transform:scaleY(1)}}
.alt-media .bar em{font-style:normal;font-size:12px;color:var(--muted)}
.alt-body h3{font-size:clamp(20px,2.2vw,26px);font-weight:700;margin-bottom:14px}
.alt-body h3 span{color:var(--magenta)}
.alt-body p{color:var(--muted);font-size:16px;line-height:1.85}
.alt-body .mini-list{margin-top:18px;display:grid;gap:10px}
.alt-body .mini-list li{display:flex;gap:10px;align-items:flex-start;color:var(--text);font-size:15px}
.alt-body .mini-list i{color:var(--primary);font-size:13px;margin-top:5px}
.badge-x{
  display:inline-block;font-size:12px;font-weight:600;padding:4px 10px;border-radius:var(--r-badge);
  background:rgba(255,77,141,.12);color:var(--magenta);border:1px solid rgba(255,77,141,.3);margin-bottom:12px;
}
.badge-x.green{background:rgba(47,230,181,.12);color:var(--primary);border-color:rgba(47,230,181,.3)}

/* tag cloud */
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;margin-top:8px}
.tag-x{
  font-size:13px;font-weight:600;padding:7px 13px;border-radius:999px;
  background:var(--card);border:1px solid var(--line);color:var(--muted);
  transition:border-color .22s ease,color .22s ease,transform .22s ease;
}
.tag-x:hover{color:var(--text);border-color:rgba(47,230,181,.4);transform:translateY(-2px)}

/* faq */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-x .accordion-item{
  background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden;margin-bottom:12px;
}
.faq-x .accordion-button{
  background:transparent;color:var(--text);font-weight:600;font-size:16px;
  padding:18px 20px;box-shadow:none;border-radius:14px;
}
.faq-x .accordion-button:not(.collapsed){color:var(--magenta)}
.faq-x .accordion-button:focus{box-shadow:none;outline:2px solid var(--primary);outline-offset:-3px}
.faq-x .accordion-button::after{
  filter:invert(84%) sepia(38%) saturate(3200%) hue-rotate(295deg) brightness(102%);
}
.faq-x .accordion-body{color:var(--muted);font-size:15.5px;line-height:1.85;padding:0 20px 20px}
.faq-x .accordion-item:has(.accordion-button:not(.collapsed)){border-color:rgba(255,77,141,.32);box-shadow:0 0 24px rgba(255,77,141,.1)}

/* cta band */
.cta-band{
  position:relative;overflow:hidden;
  background:linear-gradient(120deg,rgba(255,77,141,.1),rgba(47,230,181,.06));
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:56px 0}
.cta-inner h2{font-size:clamp(20px,2.4vw,28px);font-weight:700;margin-bottom:8px}
.cta-inner p{color:var(--muted);margin:0;font-size:15.5px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* footer */
.site-footer{background:#07060C;border-top:1px solid var(--line);padding:64px 0 28px;position:relative}
.site-footer::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,rgba(47,230,181,0),rgba(47,230,181,.5),rgba(255,77,141,.5),rgba(255,77,141,0))}
.foot-cols{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px}
.foot-brand .brand{margin-bottom:14px}
.foot-brand p{color:var(--weak);font-size:14px;line-height:1.85;max-width:320px}
.foot-col h4{font-size:15px;margin-bottom:16px;color:var(--text)}
.foot-col ul li{margin-bottom:10px}
.foot-col ul a{color:var(--weak);font-size:14.5px}
.foot-col ul a:hover{color:var(--primary)}
.contact-line{color:var(--weak);font-size:14px;margin-bottom:10px}
.contact-line em{font-style:normal;color:var(--muted)}
.foot-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line-soft);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  color:var(--weak);font-size:13px;
}
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:1020;
  display:inline-flex;align-items:center;gap:9px;
  background:var(--magenta);color:#21060F;font-weight:700;font-size:14px;
  padding:13px 22px;border-radius:999px;
  box-shadow:0 12px 30px rgba(255,77,141,.32);
  opacity:0;transform:translateY(14px);pointer-events:none;
  transition:opacity .3s ease,transform .3s ease,filter .22s ease;
}
.float-cta.on{opacity:1;transform:translateY(0);pointer-events:auto}
.float-cta:hover{color:#21060F;filter:brightness(1.07)}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  :root{--gap-section:78px}
  .foot-cols{grid-template-columns:1.4fr 1fr 1fr;gap:30px}
}
@media (max-width:991px){
  :root{--gap-section:72px}
  .nav-links,.header-cta{display:none}
  .burger{display:block}
  .intro-grid{grid-template-columns:1fr;gap:28px}
  .point-strip{grid-template-columns:repeat(2,1fr)}
  .alt-row{grid-template-columns:1fr;gap:26px}
  .alt-row.rev .alt-media,.alt-row.rev .alt-body{order:0}
  .alt-row + .alt-row{margin-top:52px}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:48px 0}
  .foot-cols{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  :root{--gap-section:52px}
  .container-x{padding:0 18px}
  .page-head{padding:44px 0 40px}
  .head-metrics{gap:24px}
  .metric b{font-size:22px}
  .point-strip{grid-template-columns:1fr}
  .float-cta{right:16px;left:16px;bottom:16px;justify-content:center;width:calc(100% - 32px)}
  .faq-x .accordion-button{font-size:15px;padding:16px}
}
@media (max-width:575px){
  .brand{font-size:17px}
  .foot-cols{grid-template-columns:1fr}
  .head-actions .btn-x{width:100%}
  .cta-actions{width:100%}
  .cta-actions .btn-x{width:100%}
  .foot-bottom{font-size:12px}
}

/* roulang page: category3 */
:root{
  --bg:#08070E;
  --bg-block:#100E1A;
  --card:#14111F;
  --float:#221E36;
  --c1:#2FE6B5;
  --c2:#FF4D8D;
  --c3:#FFC14D;
  --text:#F2F0FA;
  --muted:#B9B4CC;
  --weak:#7C7791;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.16);
  --r-card:16px;
  --r-btn:12px;
  --r-input:10px;
  --r-pill:999px;
  --sh-card:0 18px 40px rgba(0,0,0,.45);
  --sh-glow:0 0 0 1px rgba(47,230,181,.25),0 0 24px rgba(47,230,181,.12);
  --sh-glow-m:0 0 0 1px rgba(255,77,141,.28),0 0 26px rgba(255,77,141,.14);
  --t:.28s ease;
  --bs-primary:#2FE6B5;
  --bs-body-bg:#08070E;
  --bs-body-color:#F2F0FA;
  --bs-border-radius:16px;
  --bs-link-color:#2FE6B5;
  --bs-link-hover-color:#FF4D8D;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:92px;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.nav-open{overflow:hidden;}
img{max-width:100%;display:block;}
a{color:var(--c1);text-decoration:none;transition:color var(--t);}
a:hover{color:var(--c2);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text);}
p{margin:0 0 .9em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c1);outline-offset:2px;border-radius:4px;}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  height:68px;
  background:rgba(11,9,19,.9);
  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,rgba(47,230,181,.75),rgba(255,77,141,.6));
  opacity:.6;
}
.nav-wrap{height:68px;display:flex;align-items:center;justify-content:space-between;gap:20px;}
.brand{display:inline-flex;align-items:center;gap:9px;font-size:18px;font-weight:800;letter-spacing:-.3px;color:var(--text);}
.brand:hover{color:var(--text);}
.brand em{font-style:normal;color:var(--c1);padding:0 1px;}
.brand-dot{
  width:9px;height:9px;border-radius:50%;background:var(--c1);
  box-shadow:0 0 0 4px rgba(47,230,181,.14),0 0 14px rgba(47,230,181,.7);
  flex:0 0 auto;
  animation:pulse 2.4s ease-in-out infinite;
}
@keyframes pulse{0%,100%{transform:scale(1);opacity:1;}50%{transform:scale(.78);opacity:.7;}}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-link-x{
  position:relative;display:inline-block;padding:8px 14px;font-size:14.5px;font-weight:600;
  color:var(--muted);border-radius:10px;transition:color var(--t),background var(--t);
}
.nav-link-x::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--c1),var(--c2));
  transform:scaleX(0);transform-origin:left;transition:transform var(--t);
}
.nav-link-x:hover{color:var(--c1);background:rgba(255,255,255,.03);}
.nav-link-x:hover::after{transform:scaleX(1);}
.nav-link-x.active{color:var(--c1);}
.nav-link-x.active::after{transform:scaleX(1);box-shadow:0 0 8px rgba(47,230,181,.7);}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:42px;height:38px;border:1px solid var(--line-2);border-radius:10px;
  background:transparent;flex-direction:column;justify-content:center;align-items:center;gap:5px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:1.6px;background:var(--text);border-radius:2px;transition:transform var(--t),opacity var(--t);}
body.nav-open .nav-toggle span:nth-child(1){transform:translateY(6.6px) rotate(45deg);}
body.nav-open .nav-toggle span:nth-child(2){opacity:0;}
body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-6.6px) rotate(-45deg);}

/* ---------- buttons ---------- */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);font-weight:700;font-size:15px;line-height:1;
  padding:13px 24px;border:1px solid transparent;cursor:pointer;
  transition:transform var(--t),box-shadow var(--t),background var(--t),border-color var(--t),color var(--t);
  white-space:nowrap;
}
.btn-primary-x{background:var(--c1);color:#06110D;}
.btn-primary-x:hover{background:#48eec1;color:#06110D;transform:translateY(-1px);box-shadow:0 0 0 1px rgba(47,230,181,.4),0 10px 28px rgba(47,230,181,.28);}
.btn-ghost-x{background:transparent;color:var(--text);border-color:var(--line-2);}
.btn-ghost-x:hover{color:var(--c1);border-color:rgba(47,230,181,.6);transform:translateY(-1px);}
.btn-text-x{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;
  color:var(--c1);background:none;border:none;padding:0;
}
.btn-text-x svg{transition:transform var(--t);}
.btn-text-x:hover{color:var(--c2);}
.btn-text-x:hover svg{transform:translateX(4px);}
.btn-x.nav-cta{padding:11px 20px;font-size:14.5px;}

/* ---------- page head ---------- */
.page-head{position:relative;padding:118px 0 76px;overflow:hidden;background:#0B0913;}
.page-head .bg-layer{
  position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:.34;
}
.page-head .mask-layer{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(8,7,14,.74) 0%,rgba(8,7,14,.9) 55%,rgba(8,7,14,.99) 100%);
}
.page-head .grid-layer{
  position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.07) 1px,transparent 1px);
  background-size:24px 24px;
  opacity:.5;
}
.page-head .glow-1{
  position:absolute;width:420px;height:420px;left:-120px;top:-140px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,230,181,.16),transparent 70%);filter:blur(120px);
}
.page-head .glow-2{
  position:absolute;width:420px;height:420px;right:-140px;bottom:-180px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,77,141,.14),transparent 70%);filter:blur(120px);
}
.page-head .container-x{position:relative;z-index:2;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--weak);margin-bottom:22px;}
.crumb a{color:var(--weak);}
.crumb a:hover{color:var(--c1);}
.crumb .sep{opacity:.5;}
.crumb .cur{color:var(--c1);font-weight:600;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;letter-spacing:1px;
  color:var(--c1);background:rgba(47,230,181,.1);border:1px solid rgba(47,230,181,.3);
  border-radius:6px;padding:5px 12px;margin-bottom:18px;
}
.page-head h1{
  font-size:clamp(28px,4.2vw,50px);font-weight:800;line-height:1.18;letter-spacing:-.5px;
  max-width:880px;margin-bottom:18px;
}
.page-head h1 .hl{color:var(--c1);}
.page-head .lead-line{font-size:17px;color:var(--muted);max-width:720px;line-height:1.8;}
.head-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}

/* ---------- sections ---------- */
.section{padding:96px 0;position:relative;}
.section.alt{background:var(--bg-block);}
.sec-head{max-width:760px;margin-bottom:44px;}
.sec-head h2{
  font-size:clamp(22px,2.6vw,34px);font-weight:700;letter-spacing:-.3px;line-height:1.28;
  padding-left:16px;position:relative;
}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--c1),rgba(47,230,181,.2));
}
.sec-head .sub{color:var(--weak);font-size:14.5px;margin-top:12px;padding-left:16px;}
.sec-head h2.alt-bar::before{background:linear-gradient(180deg,var(--c2),rgba(255,77,141,.2));}

/* ---------- intro ---------- */
.intro-wrap{display:grid;grid-template-columns:1.35fr .95fr;gap:48px;align-items:start;}
.intro-text p{font-size:16.5px;line-height:1.9;color:var(--muted);}
.intro-text p strong{color:var(--text);font-weight:700;}
.intro-side{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-card);
}
.intro-side h3{font-size:17px;margin-bottom:16px;display:flex;align-items:center;gap:9px;}
.intro-side h3 svg{color:var(--c1);flex:0 0 auto;}
.side-img{border-radius:12px;overflow:hidden;margin-bottom:18px;}
.side-img img{width:100%;height:170px;object-fit:cover;}
.side-note{font-size:13px;color:var(--weak);line-height:1.7;}

/* ---------- checklist ---------- */
.check-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px 28px;}
.check-item{
  display:flex;gap:11px;align-items:flex-start;
  background:rgba(255,255,255,.02);border:1px solid var(--line);border-radius:12px;padding:14px 16px;
  transition:border-color var(--t),background var(--t);
}
.check-item:hover{border-color:rgba(47,230,181,.3);background:rgba(47,230,181,.04);}
.check-item svg{flex:0 0 auto;margin-top:3px;color:var(--c1);}
.check-item span{font-size:14.5px;color:var(--muted);line-height:1.65;}
.check-item span b{color:var(--text);font-weight:600;}

/* ---------- stat bar ---------- */
.stat-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  margin-bottom:56px;
}
.stat-item{background:var(--bg-block);padding:28px 22px;}
.section.alt .stat-item{background:#0C0A16;}
.stat-num{
  font-family:"JetBrains Mono","Barlow",ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:34px;font-weight:700;color:var(--c1);line-height:1.1;letter-spacing:-1px;
}
.stat-num .u{font-size:15px;margin-left:4px;color:var(--muted);font-weight:600;letter-spacing:0;}
.stat-lab{font-size:13px;color:var(--weak);margin-top:8px;}

/* ---------- waterfall ---------- */
.waterfall{column-count:2;column-gap:24px;}
.wf-card{
  break-inside:avoid;-webkit-column-break-inside:avoid;page-break-inside:avoid;
  margin:0 0 24px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;transition:transform var(--t),border-color var(--t),box-shadow var(--t);
  position:relative;
}
.wf-card:hover{transform:translateY(-4px);border-color:rgba(47,230,181,.35);box-shadow:var(--sh-card),var(--sh-glow);}
.wf-card.hot::before{
  content:"";position:absolute;left:0;top:0;width:2px;height:56px;border-radius:0 2px 2px 0;
  background:linear-gradient(180deg,var(--c1),rgba(47,230,181,0));z-index:3;
}
.wf-media{height:150px;overflow:hidden;background:linear-gradient(135deg,#1B1730,#241C3C);}
.wf-card:nth-child(2) .wf-media{height:196px;}
.wf-card:nth-child(4) .wf-media{height:124px;}
.wf-card:nth-child(6) .wf-media{height:176px;}
.wf-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.wf-card:hover .wf-media img{transform:scale(1.04);}
.wf-body{padding:22px 22px 20px;}
.wf-chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px;}
.chip{
  display:inline-flex;align-items:center;gap:5px;font-size:12px;font-weight:600;line-height:1;
  padding:5px 10px;border-radius:6px;
  background:rgba(47,230,181,.12);color:var(--c1);border:1px solid rgba(47,230,181,.3);
}
.chip.mag{background:rgba(255,77,141,.12);color:var(--c2);border-color:rgba(255,77,141,.3);}
.chip.amb{background:rgba(255,193,77,.12);color:var(--c3);border-color:rgba(255,193,77,.3);}
.chip.plain{background:rgba(255,255,255,.05);color:var(--muted);border-color:var(--line-2);}
.wf-body h3{font-size:19px;line-height:1.4;margin-bottom:10px;}
.wf-body p{font-size:14.5px;color:var(--muted);line-height:1.78;margin-bottom:16px;}
.wf-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;border-top:1px solid var(--line);padding-top:14px;}
.wf-price{
  font-family:"JetBrains Mono","Barlow",ui-monospace,monospace;
  font-size:16px;font-weight:700;color:var(--c2);letter-spacing:-.3px;
}
.wf-price small{font-size:12px;color:var(--weak);font-weight:500;letter-spacing:0;margin-left:3px;}

/* ---------- flow ---------- */
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative;}
.flow-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:24px 22px;
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.flow-card:hover{transform:translateY(-4px);border-color:rgba(255,77,141,.35);box-shadow:var(--sh-card),var(--sh-glow-m);}
.flow-no{
  font-family:"JetBrains Mono","Barlow",ui-monospace,monospace;font-size:13px;font-weight:700;
  color:var(--c2);letter-spacing:1px;margin-bottom:14px;display:block;
}
.flow-card h3{font-size:17px;margin-bottom:10px;}
.flow-card p{font-size:14px;color:var(--muted);line-height:1.78;}

/* ---------- compare ---------- */
.cmp-table{
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:var(--card);
}
.cmp-row{display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr;border-bottom:1px solid var(--line);}
.cmp-row:last-child{border-bottom:none;}
.cmp-cell{padding:16px 18px;font-size:14px;color:var(--muted);border-right:1px solid var(--line);}
.cmp-cell:last-child{border-right:none;}
.cmp-head .cmp-cell{background:#0D0B16;font-weight:700;color:var(--text);font-size:13.5px;letter-spacing:.3px;}
.cmp-head .cmp-cell.hi{color:var(--c2);}
.cmp-cell.name{color:var(--text);font-weight:600;}
.cmp-cell .yes{color:var(--c1);font-weight:700;}
.cmp-cell .no{color:var(--weak);}

/* ---------- faq ---------- */
.faq-wrap{max-width:860px;margin:0 auto;}
.fx-acc .accordion-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card)!important;
  margin-bottom:14px;overflow:hidden;transition:border-color var(--t),box-shadow var(--t);
}
.fx-acc .accordion-item:hover{border-color:rgba(47,230,181,.28);}
.fx-acc .accordion-button{
  background:transparent;color:var(--text);font-size:16px;font-weight:700;
  padding:20px 22px;border:none;box-shadow:none!important;
}
.fx-acc .accordion-button:not(.collapsed){color:var(--c1);background:rgba(47,230,181,.04);}
.fx-acc .accordion-button::after{
  background-image:none;content:"";width:9px;height:9px;border-right:1.8px solid currentColor;
  border-bottom:1.8px solid currentColor;transform:rotate(45deg);margin-left:auto;
  transition:transform var(--t);flex:0 0 auto;
}
.fx-acc .accordion-button:not(.collapsed)::after{transform:rotate(-135deg);}
.fx-acc .accordion-body{padding:0 22px 22px;color:var(--muted);font-size:14.8px;line-height:1.85;}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:20px;
  background:linear-gradient(120deg,#141122 0%,#1B1430 60%,#221630 100%);
  border:1px solid var(--line-2);
  padding:52px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,77,141,.2),transparent 70%);filter:blur(90px);
}
.cta-band h2{font-size:clamp(21px,2.4vw,30px);line-height:1.3;margin-bottom:10px;position:relative;z-index:2;}
.cta-band p{color:var(--muted);font-size:15px;margin:0;position:relative;z-index:2;max-width:560px;}
.cta-band .cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2;}

/* ---------- footer ---------- */
.site-footer{background:#07060C;border-top:1px solid transparent;position:relative;padding:72px 0 28px;margin-top:0;}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,rgba(47,230,181,.55),rgba(255,77,141,.5));opacity:.6;
}
.foot-cols{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;}
.foot-brand .brand{margin-bottom:16px;}
.foot-brand p{font-size:14px;color:var(--weak);line-height:1.8;max-width:330px;}
.foot-col h4{font-size:14.5px;margin-bottom:18px;letter-spacing:.3px;}
.foot-col ul li{margin-bottom:11px;}
.foot-col ul li a{font-size:14px;color:var(--muted);}
.foot-col ul li a:hover{color:var(--c1);}
.contact-line{font-size:13.5px;color:var(--weak);margin-bottom:10px;line-height:1.75;}
.contact-line em{font-style:normal;color:var(--c1);}
.foot-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--weak);
}

/* ---------- float cta ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:120;
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 22px;border-radius:var(--r-pill);
  background:var(--c1);color:#06110D;font-weight:700;font-size:14.5px;
  box-shadow:0 14px 34px rgba(0,0,0,.5),0 0 0 1px rgba(47,230,181,.35);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity var(--t),transform var(--t),visibility var(--t),background var(--t);
}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{background:#4feec4;color:#06110D;transform:translateY(-2px);}
.float-cta .fc-dot{width:7px;height:7px;border-radius:50%;background:#06110D;opacity:.65;}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .foot-cols{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
  .foot-col:last-child{grid-column:1 / -1;}
}
@media (max-width:1024px){
  .intro-wrap{grid-template-columns:1fr;gap:32px;}
  .flow-grid{grid-template-columns:repeat(2,1fr);}
  .cmp-row{grid-template-columns:1.3fr 1fr 1fr;}
  .cmp-cell:nth-child(2){display:none;}
}
@media (max-width:992px){
  .nav-links{
    position:fixed;left:0;right:0;top:68px;bottom:0;
    flex-direction:column;align-items:stretch;gap:4px;
    background:rgba(11,9,19,.985);
    padding:28px 24px 40px;
    transform:translateX(100%);
    transition:transform .3s ease;
    overflow-y:auto;z-index:90;
  }
  body.nav-open .nav-links{transform:translateX(0);}
  .nav-link-x{padding:15px 8px;font-size:17px;border-bottom:1px solid var(--line);border-radius:0;}
  .nav-link-x::after{display:none;}
  .nav-link-x.active{color:var(--c1);}
  .nav-toggle{display:flex;align-items:center;}
  .section{padding:72px 0;}
  .page-head{padding:96px 0 64px;}
  .stat-bar{grid-template-columns:repeat(2,1fr);}
  .check-list{grid-template-columns:1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px 32px;}
}
@media (max-width:768px){
  .container-x{padding:0 18px;}
  .section{padding:52px 0;}
  .page-head{padding:84px 0 52px;}
  .waterfall{column-count:1;}
  .flow-grid{grid-template-columns:1fr;}
  .foot-cols{grid-template-columns:1fr 1fr;gap:28px;}
  .foot-brand{grid-column:1 / -1;}
  .foot-col:last-child{grid-column:1 / -1;}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:8px;margin-top:36px;}
  .float-cta{
    right:16px;left:16px;bottom:16px;width:calc(100% - 32px);justify-content:center;
    padding:14px 18px;
  }
  .cmp-row{grid-template-columns:1fr;}
  .cmp-cell{border-right:none;border-bottom:1px solid var(--line);}
  .cmp-cell:last-child{border-bottom:none;}
  .cmp-cell:nth-child(2){display:block;}
  .cmp-head{display:none;}
}
@media (max-width:576px){
  .page-head h1{font-size:26px;}
  .btn-x{padding:12px 18px;font-size:14px;}
  .nav-cta{display:none;}
  .stat-num{font-size:26px;}
  .stat-item{padding:20px 16px;}
  .wf-body{padding:18px 18px 16px;}
  .cta-band{padding:32px 22px;}
  .head-actions .btn-x{flex:1 1 100%;}
}