/* roulang page: index */
:root{
  --bg-0:#050C18;
  --bg-1:#0A1526;
  --bg-2:#0F2038;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --glass:rgba(255,255,255,.055);
  --brand:#2BE0B7;
  --brand-deep:#14B894;
  --accent:#FF9A3C;
  --alert:#FF5A5F;
  --text-1:#EAF2FF;
  --text-2:#A9BBD4;
  --text-3:#6E829D;
  --r-s:10px;
  --r-m:18px;
  --r-l:26px;
  --r-pill:999px;
  --shadow-1:0 12px 32px rgba(2,8,20,.55);
  --shadow-2:0 24px 56px rgba(2,8,20,.65);
  --glow:0 0 24px rgba(43,224,183,.35);
  --font-body:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --font-title:"Saira","Barlow Condensed","PingFang SC","Microsoft YaHei",sans-serif;
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  overflow-x:hidden;
  background-image:
    radial-gradient(900px 520px at 12% -10%,rgba(43,224,183,.10),transparent 62%),
    radial-gradient(760px 460px at 92% 4%,rgba(255,154,60,.07),transparent 60%);
  background-repeat:no-repeat;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .22s ease,opacity .22s ease;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:2px;
  border-radius:var(--r-s);
}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
h1,h2,h3,h4{
  font-family:var(--font-title);
  margin:0;
  color:var(--text-1);
  letter-spacing:.4px;
  font-weight:700;
}
h1{font-size:clamp(30px,4.4vw,54px);line-height:1.15;}
h2{font-size:clamp(24px,3vw,36px);line-height:1.25;}
h3{font-size:21px;line-height:1.4;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
.num{font-family:var(--font-title);font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:104px 0;position:relative;}
.section--tight{padding:76px 0;}
.section--alt{background:linear-gradient(180deg,rgba(10,21,38,0),rgba(10,21,38,.85) 18%,rgba(10,21,38,.85) 82%,rgba(10,21,38,0));}
.hairline{
  height:1px;width:100%;
  background:repeating-linear-gradient(90deg,rgba(255,255,255,.08) 0 14px,transparent 14px 28px);
  opacity:.8;
}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:44px;flex-wrap:wrap;}
.sec-head p{color:var(--text-2);max-width:660px;margin-top:12px;font-size:15px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:1.4px;color:var(--brand);
  text-transform:uppercase;margin-bottom:14px;font-family:var(--font-title);
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--brand);display:inline-block;}

.glass{
  position:relative;
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border:1px solid rgba(255,255,255,.10);
  border-radius:var(--r-m);
  box-shadow:var(--shadow-1);
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.glass::before{
  content:"";position:absolute;left:14px;right:14px;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.35),transparent);
}
.glass:hover{border-color:rgba(43,224,183,.35);transform:translateY(-2px);box-shadow:var(--shadow-2);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;
  transition:transform .18s ease,box-shadow .25s ease,background .25s ease,filter .25s ease,color .25s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-deep) 100%);
  color:#03170F;box-shadow:var(--glow);
}
.btn-primary:hover{filter:brightness(1.06);box-shadow:0 10px 30px rgba(43,224,183,.35);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 14px rgba(43,224,183,.28);}
.btn-ghost{
  background:var(--glass);border:1px solid rgba(43,224,183,.45);color:var(--text-1);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{background:rgba(43,224,183,.12);border-color:var(--brand);}
.btn-ghost:active{transform:translateY(1px);}
.btn-lg{height:56px;padding:0 32px;font-size:16px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;box-shadow:none;filter:none;transform:none;}
.btn.is-loading{pointer-events:none;opacity:.75;}
.btn.is-loading::after{
  content:"";width:16px;height:16px;border-radius:50%;
  border:2px solid rgba(3,23,15,.35);border-top-color:#03170F;
  animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg);}}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--text-2);font-size:14px;font-weight:600;}
.link-arrow::after{content:"→";transition:transform .22s ease;}
.link-arrow:hover{color:var(--brand);}
.link-arrow:hover::after{transform:translateX(4px);}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:13px;line-height:20px;
  background:rgba(43,224,183,.12);color:var(--brand);
  border:1px solid rgba(43,224,183,.28);
}
.badge--accent{background:rgba(255,154,60,.14);color:var(--accent);border-color:rgba(255,154,60,.3);}
.badge--muted{background:rgba(255,255,255,.06);color:var(--text-2);border-color:var(--line);}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  height:84px;
  background:rgba(5,12,24,.72);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
  transition:height .25s ease,background .25s ease;
}
.site-header.is-scrolled{height:68px;background:rgba(6,16,31,.85);}
.nav{height:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;}
.logo{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.logo-mark{
  width:40px;height:40px;border-radius:12px;flex-shrink:0;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#04170F;display:grid;place-items:center;
  font-family:var(--font-title);font-weight:700;font-size:17px;
  box-shadow:var(--glow);
}
.logo-text{display:flex;flex-direction:column;line-height:1.1;}
.logo-text strong{font-size:18px;font-family:var(--font-title);letter-spacing:.6px;}
.logo-text span{font-size:11px;color:var(--text-3);letter-spacing:1.6px;font-family:var(--font-title);}
.nav-links{display:flex;align-items:center;gap:6px;flex:1;justify-content:center;}
.nav-links a{
  position:relative;padding:10px 14px;font-size:15px;color:var(--text-2);border-radius:var(--r-s);
}
.nav-links a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left center;
  transition:transform .22s ease;border-radius:2px;
}
.nav-links a:hover{color:var(--text-1);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--brand);}
.nav-links a.is-active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:var(--glass);
  align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text-1);position:relative;border-radius:2px;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text-1);border-radius:2px;
  transition:transform .25s ease,top .25s ease;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

.drawer-mask{
  position:fixed;inset:0;background:rgba(3,9,18,.72);backdrop-filter:blur(3px);
  opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease;z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(360px,86vw);z-index:90;
  background:rgba(10,21,38,.92);
  backdrop-filter:blur(18px) saturate(150%);
  border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .32s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;padding:22px;
}
.drawer.is-open{transform:translateX(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:var(--glass);display:grid;place-items:center;font-size:20px;color:var(--text-2);
}
.drawer-close:hover{color:var(--brand);border-color:rgba(43,224,183,.4);}
.drawer nav{display:flex;flex-direction:column;flex:1;overflow-y:auto;}
.drawer nav a{
  font-size:17px;line-height:56px;color:var(--text-2);
  border-bottom:1px solid var(--line);padding:0 4px;
}
.drawer nav a:hover,.drawer nav a.is-active{color:var(--brand);}
.drawer-foot{padding-top:18px;border-top:1px solid var(--line);}

/* ---------- hero ---------- */
.hero{position:relative;padding:72px 0 96px;overflow:hidden;}
.hero-grid{display:grid;grid-template-columns:55fr 45fr;gap:44px;align-items:center;}
.hero h1{margin-bottom:20px;}
.hero h1 em{font-style:normal;color:var(--brand);}
.hero-sub{color:var(--text-2);font-size:17px;max-width:600px;}
.hero-cta{display:flex;gap:14px;margin-top:32px;flex-wrap:wrap;}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,1fr);gap:18px;
  margin-top:44px;padding-top:28px;border-top:1px solid var(--line);
}
.hero-stats .stat b{display:block;font-size:28px;color:var(--brand);font-family:var(--font-title);font-variant-numeric:tabular-nums;}
.hero-stats .stat span{font-size:13px;color:var(--text-3);}
.hero-visual{
  position:relative;border-radius:var(--r-l);overflow:hidden;
  min-height:420px;box-shadow:var(--shadow-2);border:1px solid var(--line);
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(5,12,24,.35),rgba(5,12,24,.88)),
    repeating-linear-gradient(90deg,rgba(255,255,255,.05) 0 1px,transparent 1px 46px),
    repeating-linear-gradient(0deg,rgba(255,255,255,.05) 0 1px,transparent 1px 46px);
}
.hero-panel{
  position:absolute;left:22px;right:22px;bottom:22px;z-index:2;
  padding:18px;border-radius:var(--r-m);
  background:rgba(10,21,38,.72);border:1px solid rgba(255,255,255,.12);
  backdrop-filter:blur(16px) saturate(150%);
}
.hero-panel img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-s);background:var(--bg-2);}
.hero-panel-row{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:14px;flex-wrap:wrap;}
.hero-panel-row p{font-size:13px;color:var(--text-2);}
.hero-tag{
  position:absolute;top:22px;left:22px;z-index:2;
}

/* ---------- tiers ---------- */
.tier-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;align-items:end;}
.tier{
  padding:24px;border-radius:var(--r-m);
  background:var(--glass);border:1px solid rgba(255,255,255,.10);
  backdrop-filter:blur(14px) saturate(140%);
  transition:border-color .25s ease,transform .25s ease;
}
.tier:hover{border-color:rgba(43,224,183,.35);transform:translateY(-3px);}
.tier:nth-child(1){min-height:210px;}
.tier:nth-child(2){min-height:246px;}
.tier:nth-child(3){min-height:282px;}
.tier:nth-child(4){min-height:318px;}
.tier-step{font-size:13px;color:var(--text-3);font-family:var(--font-title);letter-spacing:1.4px;}
.tier h3{margin:10px 0 8px;}
.tier p{color:var(--text-2);font-size:14px;}
.tier strong{display:block;margin-top:16px;font-size:24px;color:var(--accent);font-family:var(--font-title);font-variant-numeric:tabular-nums;}

/* ---------- plans ---------- */
.plan-wrap{overflow-x:auto;padding-bottom:6px;}
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;min-width:840px;}
.plan{
  padding:26px;border-radius:var(--r-l);
  background:var(--bg-1);border:1px solid var(--line);
  display:flex;flex-direction:column;gap:18px;position:relative;
}
.plan--hot{
  border-color:rgba(43,224,183,.55);
  box-shadow:0 0 0 1px rgba(43,224,183,.18),var(--shadow-2);
  background:linear-gradient(180deg,rgba(43,224,183,.08),rgba(15,32,56,.9));
}
.plan-flag{
  position:absolute;top:-13px;right:22px;
  background:var(--brand);color:#04170F;font-size:12px;font-weight:700;
  padding:4px 12px;border-radius:var(--r-pill);
}
.plan-name{font-size:20px;font-family:var(--font-title);}
.plan-price{font-size:36px;color:var(--text-1);font-family:var(--font-title);font-variant-numeric:tabular-nums;}
.plan-price small{font-size:14px;color:var(--text-3);margin-left:6px;font-family:var(--font-body);}
.plan-list{display:flex;flex-direction:column;gap:12px;font-size:14px;color:var(--text-2);}
.plan-list li{display:flex;gap:10px;align-items:flex-start;}
.plan-list li::before{content:"✓";color:var(--brand);font-weight:700;line-height:1.6;}
.plan .btn{margin-top:auto;}

/* ---------- limited ---------- */
.limited{
  position:relative;border-radius:var(--r-l);overflow:hidden;padding:44px;
  background:linear-gradient(120deg,rgba(255,90,95,.16),rgba(15,32,56,.92) 55%);
  border:1px solid rgba(255,90,95,.32);
}
.limited::before{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(115deg,rgba(255,255,255,.05) 0 14px,transparent 14px 30px);
  pointer-events:none;
}
.limited-inner{position:relative;display:grid;grid-template-columns:1.4fr 1fr;gap:32px;align-items:center;}
.limited h2{font-size:clamp(22px,2.6vw,32px);}
.limited p{color:var(--text-2);margin-top:12px;}
.countdown{display:flex;gap:12px;margin-top:20px;}
.countdown div{
  min-width:74px;text-align:center;padding:10px 12px;border-radius:var(--r-s);
  background:rgba(5,12,24,.6);border:1px solid var(--line);
}
.countdown b{display:block;font-size:26px;color:var(--accent);font-family:var(--font-title);font-variant-numeric:tabular-nums;}
.countdown span{font-size:12px;color:var(--text-3);}
.limited-note{font-size:13px;color:var(--text-3);margin-top:14px;}

/* ---------- posts ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.post-card{display:flex;flex-direction:column;overflow:hidden;padding:0;}
.post-thumb{
  display:block;aspect-ratio:16/9;background:var(--bg-2);overflow:hidden;
}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.post-card:hover .post-thumb img{transform:scale(1.05);}
.post-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.post-title{
  font-size:17px;line-height:1.5;font-family:var(--font-body);font-weight:700;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card:hover .post-title{color:var(--brand);}
.post-excerpt{
  font-size:14px;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;font-size:13px;color:var(--text-3);}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 24px;border-radius:var(--r-m);
  background:var(--glass);border:1px dashed var(--line-strong);
}
.empty-state .glyph{
  width:64px;height:64px;margin:0 auto 16px;border-radius:50%;
  border:1px solid rgba(43,224,183,.35);display:grid;place-items:center;
  color:var(--brand);font-size:26px;font-family:var(--font-title);
}
.empty-state p{color:var(--text-2);margin-bottom:20px;}
.skeleton-card{border-radius:var(--r-m);overflow:hidden;background:var(--bg-1);border:1px solid var(--line);}
.skeleton-card .sk-img{aspect-ratio:16/9;background:linear-gradient(90deg,#0F2038 25%,#17304f 37%,#0F2038 63%);background-size:400% 100%;animation:sweep 1.4s ease infinite;}
.skeleton-card .sk-line{height:12px;margin:16px 20px;border-radius:6px;background:linear-gradient(90deg,#0F2038 25%,#17304f 37%,#0F2038 63%);background-size:400% 100%;animation:sweep 1.4s ease infinite;}
.skeleton-card .sk-line.short{width:45%;margin-bottom:22px;}
@keyframes sweep{0%{background-position:100% 0;}100%{background-position:0 0;}}

/* ---------- evidence ---------- */
.evidence-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.evidence{padding:26px;border-radius:var(--r-m);background:var(--bg-1);border:1px solid var(--line);}
.evidence b{display:block;font-size:34px;color:var(--brand);font-family:var(--font-title);font-variant-numeric:tabular-nums;}
.evidence span{font-size:14px;color:var(--text-2);display:block;margin-top:8px;}
.quote-band{
  margin-top:22px;padding:26px 28px;border-radius:var(--r-m);
  background:var(--glass);border:1px solid var(--line);
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
}
.quote-band blockquote{margin:0;font-size:14px;color:var(--text-2);}
.quote-band cite{display:block;margin-top:10px;font-size:13px;color:var(--text-3);font-style:normal;}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  border-radius:var(--r-m);background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(12px);overflow:hidden;transition:border-color .25s ease;
}
.faq-item.is-open{border-color:rgba(43,224,183,.4);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;text-align:left;font-size:16px;font-weight:600;color:var(--text-1);
}
.faq-q:hover{color:var(--brand);}
.faq-icon{
  width:26px;height:26px;flex-shrink:0;border-radius:50%;
  border:1px solid rgba(43,224,183,.45);color:var(--brand);
  display:grid;place-items:center;font-size:16px;line-height:1;
  transition:transform .3s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s ease;}
.faq-a p{padding:0 24px 22px;color:var(--text-2);font-size:15px;}

/* ---------- form ---------- */
.contact-grid{display:grid;grid-template-columns:0.85fr 1.15fr;gap:36px;align-items:start;}
.contact-points{display:flex;flex-direction:column;gap:16px;margin-top:22px;}
.contact-points li{display:flex;gap:12px;color:var(--text-2);font-size:15px;}
.contact-points li::before{
  content:"";width:8px;height:8px;border-radius:50%;background:var(--brand);
  margin-top:9px;flex-shrink:0;box-shadow:var(--glow);
}
.form-card{padding:28px;border-radius:var(--r-l);}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field--full{grid-column:1/-1;}
.field label{font-size:14px;color:var(--text-2);}
.field .req{color:var(--accent);margin-left:4px;}
.field input,.field select,.field textarea{
  height:48px;padding:0 14px;border-radius:var(--r-s);
  background:#0D1B2E;border:1px solid var(--line);color:var(--text-1);
  font-size:15px;font-family:inherit;transition:border-color .22s ease,box-shadow .22s ease;
}
.field textarea{height:112px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(43,224,183,.15);
}
.field.is-error input,.field.is-error select,.field.is-error textarea{border-color:var(--alert);}
.field .err{font-size:13px;color:var(--alert);display:none;}
.field.is-error .err{display:block;}
.form-success{display:none;text-align:center;padding:44px 20px;}
.form-success.is-visible{display:block;}
.form-success .tick{
  width:64px;height:64px;margin:0 auto 18px;border-radius:50%;
  background:rgba(43,224,183,.14);border:1px solid rgba(43,224,183,.45);
  color:var(--brand);display:grid;place-items:center;font-size:30px;
}
.form-success p{color:var(--text-2);margin-top:8px;font-size:15px;}

/* ---------- cta band ---------- */
.cta-band{
  padding:44px;border-radius:var(--r-l);
  background:linear-gradient(135deg,rgba(43,224,183,.14),rgba(15,32,56,.92) 60%);
  border:1px solid rgba(43,224,183,.28);
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);}
.cta-band p{color:var(--text-2);margin-top:10px;max-width:620px;}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);padding:72px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding-bottom:48px;}
.footer-brand p{color:var(--text-2);font-size:14px;margin:18px 0 22px;max-width:320px;}
.footer-col h4{font-size:15px;margin-bottom:18px;color:var(--text-1);}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a{font-size:14px;color:var(--text-2);display:inline-block;transition:color .2s ease,transform .2s ease;}
.footer-col a:hover{color:var(--brand);transform:translateX(2px);}
.footer-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(--text-3);
}
.footer-bottom a{color:var(--text-3);}
.footer-bottom a:hover{color:var(--brand);}

@media (max-width:1279px){
  .hero-grid{gap:32px;}
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-actions .btn-ghost{display:none;}
  .nav-toggle{display:flex;}
  .hero-grid{grid-template-columns:1fr;}
  .hero-visual{min-height:340px;order:2;}
  .hero{padding:48px 0 72px;}
  .tier-grid{grid-template-columns:repeat(2,1fr);align-items:stretch;}
  .tier{min-height:auto !important;}
  .post-grid{grid-template-columns:repeat(2,1fr);}
  .evidence-grid{grid-template-columns:repeat(2,1fr);}
  .quote-band{grid-template-columns:1fr;}
  .contact-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .limited-inner{grid-template-columns:1fr;}
  .section{padding:72px 0;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .hero-stats{grid-template-columns:repeat(2,1fr);}
  .plan-grid{min-width:0;grid-template-columns:1fr;}
  .plan-wrap{overflow:visible;}
  .cta-band{padding:28px;}
  .limited{padding:28px;}
  .form-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
}
@media (max-width:520px){
  h1{font-size:28px;}
  h2{font-size:23px;}
  .hero-cta{flex-direction:column;}
  .hero-cta .btn{width:100%;}
  .post-grid{grid-template-columns:1fr;}
  .evidence-grid{grid-template-columns:1fr;}
  .tier-grid{grid-template-columns:1fr;}
  .countdown div{min-width:62px;padding:8px;}
  .countdown b{font-size:22px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .btn-lg{width:100%;}
}

/* roulang page: article */
:root{
  --bg-0:#050C18;
  --bg-1:#0A1526;
  --bg-2:#0F2038;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.055);
  --brand:#2BE0B7;
  --brand-deep:#14B894;
  --accent:#FF9A3C;
  --alert:#FF5A5F;
  --text-1:#EAF2FF;
  --text-2:#A9BBD4;
  --text-3:#6E829D;
  --r-s:10px;
  --r-m:18px;
  --r-l:26px;
  --r-pill:999px;
  --shadow-1:0 12px 32px rgba(2,8,20,.55);
  --shadow-2:0 24px 56px rgba(2,8,20,.65);
  --glow:0 0 24px rgba(43,224,183,.35);
  --font-cn:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --font-num:"Barlow Condensed","Saira","PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700}
p{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
::selection{background:rgba(43,224,183,.28);color:#fff}

.container{max-width:1240px;margin:0 auto;padding:0 24px;width:100%}
.section{padding:96px 0}
.section-alt{background:var(--bg-1)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:2px;color:var(--brand);
  text-transform:uppercase;font-weight:600;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--brand);opacity:.7}
.section-head{margin-bottom:44px;max-width:760px}
.section-head h2{font-size:clamp(24px,3vw,36px);letter-spacing:-.3px}
.section-head p{margin-top:14px;color:var(--text-2);font-size:15.5px}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  height:84px;display:flex;align-items:center;
  background:rgba(5,12,24,.74);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
  transition:height .25s ease,background .25s ease;
}
.site-header.is-scrolled{height:68px;background:rgba(6,16,31,.9)}
.nav{display:flex;align-items:center;gap:22px;width:100%}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:40px;height:40px;border-radius:12px;flex-shrink:0;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#04241C;font-weight:800;font-size:19px;
  box-shadow:var(--glow);
  font-family:var(--font-num);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text strong{font-size:17px;letter-spacing:.6px;color:var(--text-1)}
.logo-text span{font-size:9.5px;letter-spacing:2.4px;color:var(--text-3);font-family:var(--font-num)}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-links a{
  position:relative;display:inline-block;
  padding:11px 14px;font-size:15px;color:var(--text-2);
  white-space:nowrap;transition:color .2s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:5px;height:2px;
  background:var(--brand);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-links a:hover{color:var(--text-1)}
.nav-links a:hover::after,.nav-links a.is-active::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--brand)}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:var(--glass);
  position:relative;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:50%;width:18px;height:2px;border-radius:2px;
  background:var(--text-1);transform:translateX(-50%);transition:.25s ease;
}
.nav-toggle span{top:50%;margin-top:-1px}
.nav-toggle span::before{content:"";top:-6px;left:0;transform:none}
.nav-toggle span::after{content:"";top:6px;left:0;transform:none}
body.nav-open .nav-toggle span{background:transparent}
body.nav-open .nav-toggle span::before{top:0;transform:rotate(45deg)}
body.nav-open .nav-toggle span::after{top:0;transform:rotate(-45deg)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;letter-spacing:.2px;
  transition:transform .18s ease,box-shadow .25s ease,background .25s ease,filter .25s ease,color .2s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#04241C;box-shadow:var(--glow);
}
.btn-primary:hover{box-shadow:0 10px 30px rgba(43,224,183,.35);filter:brightness(1.06)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{
  background:var(--glass);border:1px solid rgba(43,224,183,.45);
  color:var(--brand);backdrop-filter:blur(12px);
}
.btn-ghost:hover{background:rgba(43,224,183,.12)}
.btn-ghost:active{transform:translateY(1px)}
.btn-lg{height:52px;padding:0 30px;font-size:16px}
.btn-block{width:100%}
.btn:disabled,.btn.is-disabled{opacity:.45;cursor:not-allowed;box-shadow:none}
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-weight:600;font-size:15px;
}
.link-more::after{content:"→";transition:transform .2s ease}
.link-more:hover::after{transform:translateX(4px)}

/* ---------- Badge / Tag ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;letter-spacing:.4px;
  background:rgba(43,224,183,.12);
  border:1px solid rgba(43,224,183,.3);
  color:var(--brand);
}
.badge-accent{
  background:rgba(255,154,60,.12);
  border-color:rgba(255,154,60,.35);
  color:var(--accent);
}
.tag-list{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;
  padding:6px 14px;border-radius:var(--r-pill);
  font-size:13px;color:var(--text-2);
  background:var(--glass);border:1px solid var(--line);
  transition:.2s ease;
}
.tag:hover{color:var(--brand);border-color:rgba(43,224,183,.35);transform:translateY(-1px)}

/* ---------- Article head ---------- */
.article-head{
  position:relative;
  padding:44px 0 46px;
  background-image:linear-gradient(180deg,rgba(5,12,24,.80),rgba(5,12,24,.97)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.article-head::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:100% 64px;pointer-events:none;
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13.5px;color:var(--text-3);margin-bottom:22px;position:relative;z-index:1;
}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{opacity:.5}
.breadcrumb .current{color:var(--text-3);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-title{
  position:relative;z-index:1;
  font-size:clamp(26px,3.6vw,42px);line-height:1.22;letter-spacing:-.6px;
  margin:16px 0 0;max-width:900px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.article-meta{
  position:relative;z-index:1;
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;
  margin-top:22px;font-size:14px;color:var(--text-3);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--text-3);opacity:.6}
.article-meta strong{color:var(--text-2);font-weight:600}

/* ---------- Article layout ---------- */
.article-wrap{padding:64px 0 96px}
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 320px;
  gap:56px;align-items:start;
}
.article-main{min-width:0;max-width:820px}

.entry-content{font-size:17px;line-height:1.85;color:var(--text-2);overflow-wrap:break-word}
.entry-content p{margin:0 0 20px}
.entry-content h2{
  position:relative;margin:42px 0 18px;padding-left:16px;
  font-size:clamp(21px,2.4vw,27px);color:var(--text-1);line-height:1.4;
}
.entry-content h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;border-radius:2px;
  background:var(--brand);box-shadow:var(--glow);
}
.entry-content h3{margin:30px 0 14px;font-size:20px;color:var(--text-1)}
.entry-content h4{margin:24px 0 12px;font-size:17px;color:var(--text-1)}
.entry-content ul,.entry-content ol{margin:0 0 20px;padding-left:26px}
.entry-content ul li{list-style:disc;margin-bottom:9px}
.entry-content ol li{list-style:decimal;margin-bottom:9px}
.entry-content li::marker{color:var(--brand)}
.entry-content blockquote{
  margin:26px 0;padding:18px 24px;
  background:var(--glass);border-left:3px solid var(--brand);
  border-radius:0 var(--r-m) var(--r-m) 0;color:var(--text-2);
  backdrop-filter:blur(14px) saturate(140%);
}
.entry-content blockquote p:last-child{margin-bottom:0}
.entry-content img{border-radius:var(--r-m);margin:26px auto;box-shadow:var(--shadow-1)}
.entry-content figure{margin:26px 0}
.entry-content figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px}
.entry-content a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.entry-content a:hover{color:#5BF0CD}
.entry-content table{
  display:block;width:100%;max-width:100%;overflow-x:auto;
  border-collapse:collapse;margin:26px 0;font-size:15px;
}
.entry-content thead th{
  background:rgba(43,224,183,.12);color:var(--brand);
  font-weight:700;text-align:left;white-space:nowrap;
}
.entry-content th,.entry-content td{
  padding:12px 16px;border:1px solid var(--line);color:var(--text-2);
}
.entry-content tbody tr:nth-child(even){background:rgba(255,255,255,.022)}
.entry-content hr{border:0;height:1px;background:var(--line);margin:36px 0}
.entry-content code{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:14px;
  background:rgba(255,255,255,.07);padding:2px 7px;border-radius:6px;color:var(--brand);
}

.empty-state{
  padding:56px 28px;text-align:center;
  background:var(--glass);border:1px solid var(--line);
  border-radius:var(--r-l);backdrop-filter:blur(14px);
}
.empty-state .icon{
  width:64px;height:64px;margin:0 auto 20px;border-radius:20px;
  display:grid;place-items:center;font-size:26px;
  background:rgba(43,224,183,.1);border:1px solid rgba(43,224,183,.28);color:var(--brand);
}
.empty-state h3{font-size:21px;margin-bottom:10px}
.empty-state p{color:var(--text-2);margin-bottom:24px}

/* ---------- Footer blocks in article ---------- */
.article-tags{
  margin-top:44px;padding-top:28px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
}
.article-tags .label{font-size:14px;color:var(--text-3)}
.pager-grid{
  display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:36px;
}
.pager-card{
  display:block;padding:22px 24px;
  background:var(--glass);border:1px solid var(--line);
  border-radius:var(--r-m);backdrop-filter:blur(14px) saturate(140%);
  position:relative;overflow:hidden;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.pager-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.35),transparent);
}
.pager-card:hover{transform:translateY(-2px);border-color:rgba(43,224,183,.35);box-shadow:var(--shadow-1)}
.pager-card small{display:block;font-size:13px;color:var(--text-3);margin-bottom:8px;letter-spacing:.6px}
.pager-card strong{
  display:block;font-size:16px;color:var(--text-1);line-height:1.5;font-weight:600;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.back-cate{
  display:flex;justify-content:center;margin-top:26px;
}

/* ---------- Sidebar ---------- */
.article-side{position:sticky;top:104px;display:grid;gap:20px}
.side-card{
  padding:24px;border-radius:var(--r-m);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  position:relative;overflow:hidden;
}
.side-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.35),transparent);
}
.side-card h3{
  font-size:16px;margin-bottom:16px;display:flex;align-items:center;gap:8px;
}
.side-card h3::before{
  content:"";width:3px;height:16px;border-radius:2px;background:var(--brand);
}
.side-list li + li{margin-top:12px;padding-top:12px;border-top:1px dashed var(--line)}
.side-list a{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:var(--text-2);line-height:1.6}
.side-list a:hover{color:var(--brand)}
.side-list .num{
  font-family:var(--font-num);font-size:14px;color:var(--brand);
  min-width:22px;font-variant-numeric:tabular-nums;
}
.side-info li{
  display:flex;justify-content:space-between;gap:14px;
  font-size:14px;color:var(--text-3);padding:9px 0;
}
.side-info li + li{border-top:1px dashed var(--line)}
.side-info span:last-child{color:var(--text-2);text-align:right}
.side-cta{text-align:center}
.side-cta p{font-size:14px;color:var(--text-2);margin:0 0 16px}

/* ---------- Related cards ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  display:flex;flex-direction:column;
  background:var(--glass);border:1px solid var(--line);
  border-radius:var(--r-m);overflow:hidden;
  backdrop-filter:blur(14px) saturate(140%);
  position:relative;
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;z-index:2;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.35),transparent);
}
.card:hover{transform:translateY(-2px);border-color:rgba(43,224,183,.35);box-shadow:var(--shadow-1)}
.card-media{
  position:relative;aspect-ratio:16/9;background:var(--bg-2);overflow:hidden;
}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.card:hover .card-media img{transform:scale(1.04)}
.card-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,12,24,0) 40%,rgba(5,12,24,.66));
}
.card-media .badge{position:absolute;top:14px;left:14px;z-index:2;background:rgba(5,12,24,.72)}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1}
.card-body h3{
  font-size:17.5px;line-height:1.5;color:var(--text-1);font-weight:700;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-body h3 a:hover{color:var(--brand)}
.card-body p{
  margin-top:12px;font-size:14.5px;line-height:1.7;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  margin-top:auto;padding-top:18px;
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.card-foot .link-more{font-size:13.5px}

/* ---------- CTA strip ---------- */
.cta-strip{
  margin-top:20px;padding:40px;
  border-radius:var(--r-l);
  background:
    linear-gradient(135deg,rgba(43,224,183,.14),rgba(15,32,56,.7) 55%),
    var(--bg-2);
  border:1px solid rgba(43,224,183,.28);
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  flex-wrap:wrap;position:relative;overflow:hidden;
}
.cta-strip::after{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(115deg,rgba(255,255,255,.03) 0 2px,transparent 2px 14px);
  pointer-events:none;
}
.cta-strip h2{font-size:clamp(20px,2.4vw,28px);position:relative;z-index:1}
.cta-strip p{margin-top:10px;color:var(--text-2);font-size:15px;max-width:640px;position:relative;z-index:1}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--bg-1);
  border-top:1px solid var(--line);
  padding:72px 0 28px;
  margin-top:0;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;
}
.footer-brand p{margin:18px 0 22px;color:var(--text-2);font-size:14.5px;max-width:340px}
.footer-col h4{font-size:15px;margin-bottom:18px;color:var(--text-1)}
.footer-col ul li + li{margin-top:11px}
.footer-col a{
  display:inline-block;font-size:14.5px;color:var(--text-2);
  transition:color .2s ease,transform .2s ease;
}
.footer-col a:hover{color:var(--brand);transform:translateX(2px)}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13.5px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-2);text-decoration:underline;text-underline-offset:3px}
.footer-bottom a:hover{color:var(--brand)}

/* ---------- Responsive ---------- */
@media (max-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr) 290px;gap:40px}
}
@media (max-width:1023px){
  .nav-links{
    position:fixed;inset:0 0 0 auto;width:min(88vw,340px);z-index:90;
    padding:96px 22px 120px;margin-left:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:linear-gradient(180deg,rgba(10,21,38,.98),rgba(5,12,24,.99));
    backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
    border-left:1px solid var(--line);
    transform:translateX(104%);transition:transform .3s ease;
    overflow-y:auto;
  }
  .nav-links a{
    font-size:17px;line-height:56px;padding:0 8px;border-radius:0;
    border-bottom:1px solid var(--line);color:var(--text-1);
  }
  .nav-links a::after{display:none}
  .nav-links a.is-active{color:var(--brand)}
  body.nav-open .nav-links{transform:translateX(0)}
  .nav-toggle{display:block;z-index:95}
  .nav-actions .btn-ghost{display:none}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:36px}
  .article-main{max-width:none}
  .article-side{position:static;grid-template-columns:1fr 1fr;display:grid}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .section{padding:72px 0}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .site-header{height:70px}
  .site-header.is-scrolled{height:62px}
  .logo-mark{width:36px;height:36px;font-size:17px}
  .logo-text strong{font-size:15.5px}
  .article-wrap{padding:44px 0 64px}
  .article-head{padding:32px 0 34px}
  .article-title{-webkit-line-clamp:3}
  .entry-content{font-size:16px;line-height:1.85}
  .pager-grid{grid-template-columns:1fr}
  .article-side{grid-template-columns:1fr}
  .card-grid{grid-template-columns:1fr}
  .cta-strip{padding:28px 22px;flex-direction:column;align-items:stretch}
  .cta-actions{flex-direction:column}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column}
  .section{padding:56px 0}
}
@media (max-width:520px){
  .nav-actions .btn-primary{height:40px;padding:0 16px;font-size:14px}
  .article-meta{font-size:13px;gap:8px 14px}
  .breadcrumb .current{max-width:180px}
}

/* roulang page: category1 */
:root{
  --bg-0:#050C18;
  --bg-1:#0A1526;
  --bg-2:#0F2038;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.055);
  --brand:#2BE0B7;
  --brand-deep:#14B894;
  --accent:#FF9A3C;
  --alert:#FF5A5F;
  --text-1:#EAF2FF;
  --text-2:#A9BBD4;
  --text-3:#6E829D;
  --r-s:10px;
  --r-m:18px;
  --r-l:26px;
  --r-pill:999px;
  --shadow-1:0 12px 32px rgba(2,8,20,.55);
  --shadow-2:0 24px 56px rgba(2,8,20,.65);
  --glow:0 0 24px rgba(43,224,183,.35);
  --font-sans:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-num:"Saira","Barlow Condensed","HarmonyOS Sans","PingFang SC",sans-serif;
  --head-h:84px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--text-1);
  background:var(--bg-0);
  background-image:
    radial-gradient(900px 520px at 12% -8%,rgba(43,224,183,.10),transparent 62%),
    radial-gradient(760px 460px at 96% 4%,rgba(20,184,148,.08),transparent 60%);
  background-repeat:no-repeat;
  min-height:100vh;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .22s ease}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;
}
button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:none;cursor:pointer}
ul,ol{list-style:none}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;letter-spacing:.02em}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  height:var(--head-h);
  display:flex;align-items:center;
  background:linear-gradient(180deg,rgba(5,12,24,.92),rgba(5,12,24,.55));
  border-bottom:1px solid var(--line);
  transition:height .28s ease,background .28s ease,box-shadow .28s ease;
}
.site-header.is-scrolled{
  height:68px;
  background:rgba(6,16,31,.85);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:0 10px 30px rgba(2,8,20,.55);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;width:100%}
.logo{display:flex;align-items:center;gap:12px;flex-shrink:0}
.logo-mark{
  width:42px;height:42px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-size:20px;font-weight:700;color:#04141a;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  box-shadow:var(--glow);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text strong{font-size:19px;letter-spacing:.04em;font-weight:700}
.logo-text span{font-size:10px;letter-spacing:.28em;color:var(--text-3);font-family:var(--font-num)}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a{
  position:relative;font-size:15px;color:var(--text-2);padding:8px 2px;white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:linear-gradient(90deg,var(--brand),var(--brand-deep));
  transition:width .22s ease;
}
.nav-links a:hover{color:var(--text-1)}
.nav-links a:hover::after{width:100%}
.nav-links a.is-active{color:var(--brand)}
.nav-links a.is-active::after{width:100%}
.nav-actions{display:flex;align-items:center;gap:12px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform .2s ease,box-shadow .24s ease,background .24s ease,color .24s ease,border-color .24s ease,filter .24s ease;
}
.btn-primary{
  color:#04141a;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  box-shadow:var(--glow);
}
.btn-primary:hover{filter:brightness(1.06);box-shadow:0 10px 30px rgba(43,224,183,.35);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{
  color:var(--text-1);
  background:var(--glass);
  border:1px solid rgba(43,224,183,.55);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{background:rgba(43,224,183,.12);border-color:var(--brand)}
.btn:disabled,.btn.is-disabled{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none}
.btn.is-loading::after{
  content:"";width:16px;height:16px;border-radius:50%;
  border:2px solid rgba(255,255,255,.35);border-top-color:#fff;
  animation:spin .8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:var(--glass);
  position:relative;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:50%;width:18px;height:2px;background:var(--text-1);
  border-radius:2px;transform:translateX(-50%);transition:.24s ease;content:"";
}
.nav-toggle span{top:21px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
body.nav-open .nav-toggle span{background:transparent}
body.nav-open .nav-toggle span::before{top:0;transform:translateX(-50%) rotate(45deg)}
body.nav-open .nav-toggle span::after{top:0;transform:translateX(-50%) rotate(-45deg)}
body.nav-open{overflow:hidden}
body.nav-open::before{
  content:"";position:fixed;inset:0;background:rgba(3,8,18,.72);
  backdrop-filter:blur(3px);z-index:70;
}

/* ---------- 通用板块 ---------- */
main{padding-top:var(--head-h)}
.section{padding:96px 0}
.section-tight{padding:64px 0}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{font-size:clamp(24px,3vw,36px);line-height:1.25;font-weight:700}
.section-head p{margin-top:14px;color:var(--text-2);font-size:16px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.14em;color:var(--brand);
  text-transform:uppercase;font-family:var(--font-num);margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--brand);display:inline-block}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:13px;background:rgba(43,224,183,.12);
  border:1px solid rgba(43,224,183,.3);color:var(--brand);
}
.badge.accent{background:rgba(255,154,60,.14);border-color:rgba(255,154,60,.35);color:var(--accent)}
.glass-card{
  position:relative;
  background:var(--glass);
  border:1px solid rgba(255,255,255,.10);
  border-radius:var(--r-m);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  padding:26px;
  box-shadow:var(--shadow-1);
  transition:border-color .26s ease,transform .26s ease,box-shadow .26s ease;
  overflow:hidden;
}
.glass-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.35),transparent);
}
.glass-card:hover{border-color:rgba(43,224,183,.35);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.solid-card{
  background:var(--bg-2);border:1px solid var(--line);
  border-radius:var(--r-m);padding:26px;
  transition:border-color .26s ease,transform .26s ease;
}
.solid-card:hover{border-color:rgba(43,224,183,.35);transform:translateY(-2px)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:15px}
.link-arrow::after{content:"→";transition:transform .22s ease}
.link-arrow:hover::after{transform:translateX(4px)}

/* ---------- 页头 ---------- */
.page-hero{
  position:relative;
  padding:64px 0 56px;
  border-bottom:1px solid var(--line);
  background:
    linear-gradient(180deg,rgba(10,21,38,.9),rgba(5,12,24,.92)),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 78%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 78%);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:1}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--text-2);margin-bottom:22px}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:var(--text-3)}
.breadcrumb .current{color:var(--text-3)}
.page-hero h1{
  font-size:clamp(30px,4.4vw,54px);line-height:1.15;font-weight:800;letter-spacing:.01em;
  max-width:20ch;
}
.page-hero h1 em{font-style:normal;color:var(--brand)}
.lede{margin-top:20px;max-width:760px;color:var(--text-2);font-size:17px;line-height:1.8}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}

/* ---------- 双栏 ---------- */
.layout-2col{
  display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:start;
}
.main-col h2{
  font-size:clamp(22px,2.4vw,30px);line-height:1.3;margin-bottom:16px;font-weight:700;
}
.main-col h3{font-size:20px;line-height:1.4;margin-bottom:10px;font-weight:700}
.main-col p{color:var(--text-2);margin-bottom:16px}
.point-list{display:flex;flex-direction:column;gap:28px;margin-top:8px}
.point-item{display:grid;grid-template-columns:56px 1fr;gap:20px;align-items:start}
.point-num{
  width:56px;height:56px;border-radius:16px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-size:20px;font-weight:700;color:var(--brand);
  background:rgba(43,224,183,.08);
  border:1px solid rgba(43,224,183,.28);
}
.point-body h3{font-size:20px;margin-bottom:10px}
.point-body p{color:var(--text-2);margin-bottom:12px}
.point-body ul{margin:0 0 4px 0;display:flex;flex-direction:column;gap:8px}
.point-body li{
  position:relative;padding-left:20px;color:var(--text-2);font-size:15px;line-height:1.75;
}
.point-body li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:50%;
  background:var(--brand);box-shadow:0 0 8px rgba(43,224,183,.5);
}
.note-inline{
  display:flex;gap:12px;align-items:flex-start;
  padding:16px 18px;border-radius:var(--r-s);
  background:rgba(255,154,60,.08);
  border:1px solid rgba(255,154,60,.28);
  color:var(--text-2);font-size:15px;
}
.note-inline strong{color:var(--accent);font-weight:700;white-space:nowrap}

/* ---------- 侧栏 ---------- */
.side-col{position:sticky;top:104px;display:flex;flex-direction:column;gap:20px}
.side-card h3{font-size:18px;margin-bottom:14px;font-weight:700}
.side-card p{color:var(--text-2);font-size:15px;margin-bottom:16px}
.side-list{display:flex;flex-direction:column;gap:14px}
.side-list li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:15px;color:var(--text-2);
  padding-bottom:14px;border-bottom:1px solid var(--line);
}
.side-list li:last-child{padding-bottom:0;border-bottom:none}
.side-list .dot{
  width:8px;height:8px;border-radius:50%;background:var(--brand);flex-shrink:0;margin-top:9px;
  box-shadow:0 0 8px rgba(43,224,183,.6);
}
.side-card .btn{width:100%}
.side-card .btn + .btn{margin-top:10px}
.mini-stats{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.mini-stat{
  background:rgba(255,255,255,.035);
  border:1px solid var(--line);border-radius:var(--r-s);
  padding:14px 16px;
}
.mini-stat strong{
  display:block;font-family:var(--font-num);font-size:26px;line-height:1.1;
  color:var(--brand);font-variant-numeric:tabular-nums;
}
.mini-stat span{font-size:13px;color:var(--text-3)}
.help-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 0;border-bottom:1px dashed var(--line);
  font-size:15px;color:var(--text-2);
}
.help-link:last-child{border-bottom:none}
.help-link:hover{color:var(--brand)}

/* ---------- 登录方式 ---------- */
.method-wrap{
  border:1px solid var(--line);border-radius:var(--r-l);
  background:linear-gradient(180deg,rgba(15,32,56,.72),rgba(10,21,38,.6));
  overflow:hidden;
}
.method-row{
  display:grid;grid-template-columns:230px 1fr 170px;
  gap:24px;align-items:center;
  padding:26px 28px;border-bottom:1px solid var(--line);
  transition:background .24s ease;
}
.method-row:last-child{border-bottom:none}
.method-row:hover{background:rgba(43,224,183,.05)}
.method-name{display:flex;align-items:center;gap:12px;font-size:18px;font-weight:700}
.method-name .idx{
  font-family:var(--font-num);font-size:14px;color:var(--brand);
  border:1px solid rgba(43,224,183,.35);border-radius:8px;padding:2px 8px;
}
.method-desc{color:var(--text-2);font-size:15px}
.method-action{text-align:right}

/* ---------- 快讯条 / 提示 ---------- */
.ticker{
  display:flex;align-items:center;gap:16px;flex-wrap:wrap;
  padding:16px 22px;border-radius:var(--r-m);
  border:1px solid var(--line);
  background:linear-gradient(90deg,rgba(43,224,183,.10),rgba(255,255,255,.03) 45%,rgba(255,255,255,.02));
}
.ticker .tag{
  font-size:13px;font-weight:700;color:#04141a;background:var(--brand);
  border-radius:var(--r-pill);padding:4px 12px;flex-shrink:0;
}
.ticker p{color:var(--text-2);font-size:15px;margin:0}

/* ---------- FAQ ---------- */
.faq{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:var(--glass);
  border:1px solid rgba(255,255,255,.10);
  border-radius:var(--r-m);
  backdrop-filter:blur(12px) saturate(140%);
  -webkit-backdrop-filter:blur(12px) saturate(140%);
  overflow:hidden;
  transition:border-color .26s ease,background .26s ease;
}
.faq-item:hover{border-color:rgba(43,224,183,.32)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;text-align:left;font-size:16px;font-weight:600;color:var(--text-1);
}
.faq-q .plus{
  width:26px;height:26px;flex-shrink:0;position:relative;
  transition:transform .3s ease;
}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
}
.faq-q .plus::before{left:50%;top:4px;bottom:4px;width:2px;transform:translateX(-50%)}
.faq-q .plus::after{top:50%;left:4px;right:4px;height:2px;transform:translateY(-50%)}
.faq-item.is-open .plus{transform:rotate(45deg)}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .34s ease;
}
.faq-a-inner{padding:0 24px 22px;color:var(--text-2);font-size:15px;line-height:1.8}

/* ---------- CTA 条 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--r-l);
  border:1px solid rgba(43,224,183,.28);
  background:
    linear-gradient(115deg,rgba(43,224,183,.16),rgba(10,21,38,.9) 52%,rgba(255,154,60,.12));
  padding:44px;
  display:grid;grid-template-columns:1.6fr 1fr;gap:32px;align-items:center;
  box-shadow:var(--shadow-2);
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(43,224,183,.28),transparent 68%);
  pointer-events:none;
}
.cta-band h2{font-size:clamp(22px,2.6vw,32px);line-height:1.3;margin-bottom:12px}
.cta-band p{color:var(--text-2);max-width:56ch}
.cta-actions{display:flex;flex-direction:column;gap:12px;justify-self:end;width:100%;max-width:280px}
.cta-actions .btn{width:100%}
.cta-actions small{color:var(--text-3);font-size:13px;text-align:center}

/* ---------- 表单 ---------- */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1/-1}
.field label{font-size:14px;color:var(--text-2)}
.field label .req{color:var(--accent);margin-left:4px}
.field input,.field textarea,.field select{
  height:48px;padding:0 14px;border-radius:var(--r-s);
  background:#0D1B2E;border:1px solid var(--line);
  color:var(--text-1);font-size:15px;font-family:inherit;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.field textarea{height:120px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(43,224,183,.15);
}
.field.has-error input,.field.has-error textarea{border-color:var(--alert)}
.field .err{font-size:13px;color:var(--alert);display:none}
.field.has-error .err{display:block}
.form-success{
  display:none;text-align:center;padding:40px 24px;
}
.form-success.is-on{display:block}
.form-success .tick{
  width:64px;height:64px;border-radius:50%;margin:0 auto 18px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(43,224,183,.14);border:1px solid rgba(43,224,183,.4);
  color:var(--brand);font-size:30px;font-family:var(--font-num);
}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:24px;border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(10,21,38,.85),rgba(5,12,24,.98));
  padding:72px 0 28px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand .logo{margin-bottom:18px}
.footer-brand p{color:var(--text-2);font-size:15px;margin-bottom:20px;max-width:38ch}
.footer-col h4{font-size:16px;margin-bottom:18px;font-weight:700}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col a{
  color:var(--text-2);font-size:15px;display:inline-block;
  transition:color .22s ease,transform .22s ease;
}
.footer-col a:hover{color:var(--brand);transform:translateX(2px)}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  color:var(--text-3);font-size:14px;
}
.footer-bottom a{color:var(--text-3)}
.footer-bottom a:hover{color:var(--brand)}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav-links{
    position:fixed;top:0;right:0;bottom:0;width:min(360px,86vw);z-index:90;
    flex-direction:column;align-items:stretch;gap:0;
    padding:96px 26px 120px;
    background:rgba(10,21,38,.92);
    backdrop-filter:blur(18px) saturate(150%);
    -webkit-backdrop-filter:blur(18px) saturate(150%);
    border-left:1px solid var(--line);
    transform:translateX(102%);
    transition:transform .32s ease;
    overflow-y:auto;
  }
  body.nav-open .nav-links{transform:translateX(0)}
  .nav-links a{
    font-size:17px;padding:0;line-height:56px;border-bottom:1px solid var(--line);color:var(--text-1);
  }
  .nav-links a::after{display:none}
  .nav-actions .btn-ghost{display:none}
  .nav-toggle{display:block;z-index:100}
  .layout-2col{grid-template-columns:1fr;gap:32px}
  .side-col{position:static}
  .cta-band{grid-template-columns:1fr;padding:34px}
  .cta-actions{justify-self:stretch;max-width:none}
  .method-row{grid-template-columns:1fr;gap:12px;align-items:start}
  .method-action{text-align:left}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:72px 0}
  .footer-brand{grid-column:1/-1}
}
@media (max-width:767px){
  .container{padding:0 18px}
  main{padding-top:76px}
  .site-header{height:76px}
  .logo-text strong{font-size:17px}
  .page-hero{padding:44px 0 40px}
  .page-hero h1{max-width:none}
  .lede{font-size:16px}
  .point-item{grid-template-columns:44px 1fr;gap:14px}
  .point-num{width:44px;height:44px;border-radius:12px;font-size:17px}
  .cta-band{padding:26px 20px}
  .cta-actions{max-width:none}
  .form-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-col{border-bottom:1px solid var(--line);padding-bottom:22px}
  .footer-col:last-child{border-bottom:none}
}
@media (max-width:519px){
  .nav-actions{gap:8px}
  .nav-actions .btn{padding:0 14px;height:40px;font-size:14px}
  .logo-mark{width:38px;height:38px;font-size:18px;border-radius:12px}
  .section{padding:56px 0}
  .glass-card,.solid-card{padding:20px}
  .method-row{padding:20px}
  .mini-stats{grid-template-columns:1fr 1fr}
  .btn{width:100%}
  .footer-bottom{flex-direction:column}
}

/* roulang page: category2 */
:root{
  --bg-0:#050C18;
  --bg-1:#0A1526;
  --bg-2:#0F2038;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.055);
  --brand:#2BE0B7;
  --brand-deep:#14B894;
  --accent:#FF9A3C;
  --alert:#FF5A5F;
  --text-1:#EAF2FF;
  --text-2:#A9BBD4;
  --text-3:#6E829D;
  --r-s:10px;
  --r-m:18px;
  --r-l:26px;
  --r-pill:999px;
  --shadow-1:0 12px 32px rgba(2,8,20,.55);
  --shadow-2:0 24px 56px rgba(2,8,20,.65);
  --glow:0 0 24px rgba(43,224,183,.35);
  --font-sans:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --font-num:"Saira","Barlow Condensed","PingFang SC",system-ui,sans-serif;
  --ease:cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--text-1);
  background:
    radial-gradient(1100px 620px at 82% -8%, rgba(43,224,183,.10), transparent 62%),
    radial-gradient(900px 520px at 4% 12%, rgba(20,184,148,.07), transparent 60%),
    var(--bg-0);
  min-height:100vh;
}
body.nav-open{overflow:hidden}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.01em;line-height:1.25}
p{margin:0}
::selection{background:rgba(43,224,183,.28);color:#fff}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}

/* ===== 通用按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.02em;
  border:1px solid transparent;position:relative;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease),filter .22s var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#04202a;box-shadow:var(--glow);
}
.btn-primary:hover{box-shadow:0 10px 30px rgba(43,224,183,.35);filter:brightness(1.06);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px);box-shadow:var(--glow)}
.btn-ghost{
  background:var(--glass);border-color:rgba(43,224,183,.42);color:var(--text-1);
  backdrop-filter:blur(12px);
}
.btn-ghost:hover{background:rgba(43,224,183,.12);border-color:var(--brand);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.btn.is-loading{pointer-events:none;opacity:.75;padding-left:44px}
.btn.is-loading::before{
  content:"";position:absolute;left:18px;top:50%;width:16px;height:16px;margin-top:-8px;
  border:2px solid rgba(4,32,42,.35);border-top-color:#04202a;border-radius:50%;
  animation:spin .8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}
.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--text-2);font-size:14px;font-weight:600;transition:color .2s var(--ease)}
.link-more span{transition:transform .2s var(--ease)}
.link-more:hover{color:var(--brand)}
.link-more:hover span{transform:translateX(4px)}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;letter-spacing:.04em;
  background:rgba(43,224,183,.12);color:var(--brand);
  border:1px solid rgba(43,224,183,.28);
}
.badge-accent{background:rgba(255,154,60,.14);color:var(--accent);border-color:rgba(255,154,60,.32)}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:80;height:84px;
  background:rgba(5,12,24,.72);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  transition:height .28s var(--ease),background .28s var(--ease),box-shadow .28s var(--ease);
}
.site-header.is-scrolled{height:68px;background:rgba(6,16,31,.9);box-shadow:0 10px 30px rgba(2,8,20,.5)}
.nav{display:flex;align-items:center;justify-content:space-between;height:100%;gap:20px}
.logo{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto}
.logo-mark{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--brand),var(--brand-deep));
  color:#04202a;font-weight:800;font-size:19px;letter-spacing:.02em;
  box-shadow:var(--glow);
}
.logo-text{display:flex;flex-direction:column;line-height:1.12}
.logo-text strong{font-size:18px;letter-spacing:.04em}
.logo-text span{font-size:10px;color:var(--text-3);letter-spacing:.22em;font-family:var(--font-num)}
.nav-links{display:flex;align-items:center;gap:30px}
.nav-links a{
  position:relative;font-size:15px;color:var(--text-2);padding:6px 0;font-weight:500;
  transition:color .22s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),rgba(43,224,183,.15));
  transform:scaleX(0);transform-origin:left;transition:transform .22s var(--ease);
}
.nav-links a:hover{color:var(--text-1)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--brand)}
.nav-links a.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:var(--glass);
  align-items:center;justify-content:center;
  transition:border-color .22s var(--ease),background .22s var(--ease);
}
.nav-toggle:hover{border-color:rgba(43,224,183,.4);background:rgba(43,224,183,.08)}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  content:"";display:block;width:18px;height:2px;border-radius:2px;background:var(--text-1);
  transition:transform .26s var(--ease),opacity .2s var(--ease);
}
.nav-toggle span{position:relative}
.nav-toggle span::before{position:absolute;top:-6px;left:0}
.nav-toggle span::after{position:absolute;top:6px;left:0}
body.nav-open .nav-toggle span{background:transparent}
body.nav-open .nav-toggle span::before{transform:translateY(6px) rotate(45deg)}
body.nav-open .nav-toggle span::after{transform:translateY(-6px) rotate(-45deg)}
.nav-drawer{
  position:fixed;inset:0;z-index:90;display:none;
}
.nav-drawer.is-open{display:block}
.drawer-mask{position:absolute;inset:0;background:rgba(3,8,17,.72);backdrop-filter:blur(4px)}
.drawer-panel{
  position:absolute;top:0;right:0;bottom:0;width:min(360px,86vw);
  background:rgba(10,21,38,.94);border-left:1px solid var(--line);
  backdrop-filter:blur(18px) saturate(140%);
  display:flex;flex-direction:column;padding:22px 22px 26px;
  animation:drawerIn .3s var(--ease);
}
@keyframes drawerIn{from{transform:translateX(24px);opacity:.3}to{transform:none;opacity:1}}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--line)}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:var(--glass);font-size:20px;color:var(--text-2);display:grid;place-items:center;transition:color .2s var(--ease),border-color .2s var(--ease)}
.drawer-close:hover{color:var(--brand);border-color:rgba(43,224,183,.4)}
.drawer-links{display:flex;flex-direction:column;padding:12px 0;flex:1 1 auto;overflow:auto}
.drawer-links a{font-size:17px;line-height:56px;color:var(--text-2);border-bottom:1px solid rgba(255,255,255,.05);transition:color .2s var(--ease),padding-left .2s var(--ease)}
.drawer-links a:hover,.drawer-links a.is-active{color:var(--brand);padding-left:6px}
.drawer-foot{padding-top:14px}
.drawer-foot .btn{width:100%}

/* ===== 面包屑 + 页头 ===== */
.page-hero{
  position:relative;overflow:hidden;
  padding:56px 0 64px;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(80% 70% at 70% 20%,#000 0%,transparent 78%);
  pointer-events:none;
}
.page-hero .bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center right;
  opacity:.24;
}
.page-hero .bg::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,var(--bg-0) 8%,rgba(5,12,24,.78) 48%,rgba(5,12,24,.4) 100%)}
.page-hero .container{position:relative;z-index:2}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:20px}
.crumbs a{color:var(--text-2);transition:color .2s var(--ease)}
.crumbs a:hover{color:var(--brand)}
.crumbs i{font-style:normal;color:var(--text-3);opacity:.7}
.page-hero h1{
  font-size:clamp(28px,4vw,48px);line-height:1.15;margin:14px 0 18px;max-width:900px;
}
.page-hero h1 em{font-style:normal;color:var(--brand)}
.page-lead{max-width:760px;color:var(--text-2);font-size:16.5px;line-height:1.8}
.hero-facts{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.fact-chip{
  display:inline-flex;align-items:center;gap:9px;
  padding:9px 16px;border-radius:var(--r-pill);
  background:var(--glass);border:1px solid var(--line);font-size:14px;color:var(--text-2);
  backdrop-filter:blur(10px);
}
.fact-chip b{color:var(--text-1);font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:16px}

/* ===== 板块通用 ===== */
.section{padding:96px 0}
.section--tight{padding:76px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;flex-wrap:wrap}
.section-head h2{font-size:clamp(22px,2.6vw,34px);line-height:1.25}
.section-head p{color:var(--text-2);font-size:15.5px;max-width:640px;margin-top:12px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.18em;color:var(--brand);font-weight:700;
  text-transform:uppercase;margin-bottom:14px;font-family:var(--font-num);
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--brand);display:block}
.hairline{height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.12),transparent)}

/* ===== 流程时间线 ===== */
.flow-wrap{position:relative}
.flow{
  display:grid;grid-template-columns:repeat(5,1fr);gap:20px;position:relative;
}
.flow::before{
  content:"";position:absolute;left:22px;right:22px;top:34px;height:2px;
  background:linear-gradient(90deg,rgba(43,224,183,.55),rgba(43,224,183,.12));
  z-index:0;
}
.flow-step{
  position:relative;z-index:1;
  background:var(--glass);border:1px solid rgba(255,255,255,.1);border-radius:var(--r-m);
  padding:22px 20px 24px;backdrop-filter:blur(14px) saturate(140%);
  transition:transform .26s var(--ease),border-color .26s var(--ease),box-shadow .26s var(--ease);
}
.flow-step::before{
  content:"";position:absolute;left:16px;right:16px;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.35),transparent);
}
.flow-step:hover{transform:translateY(-4px);border-color:rgba(43,224,183,.35);box-shadow:var(--shadow-1)}
.flow-num{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  font-family:var(--font-num);font-weight:700;font-size:20px;font-variant-numeric:tabular-nums;
  background:linear-gradient(140deg,rgba(43,224,183,.22),rgba(20,184,148,.06));
  border:1px solid rgba(43,224,183,.35);color:var(--brand);margin-bottom:16px;
  box-shadow:0 0 18px rgba(43,224,183,.16);
}
.flow-step h3{font-size:17.5px;margin-bottom:9px}
.flow-step p{color:var(--text-2);font-size:14.5px;line-height:1.72}
.flow-tag{margin-top:14px;font-size:12.5px;color:var(--brand);letter-spacing:.06em}

/* ===== 图文交替行 ===== */
.feature-rows{display:flex;flex-direction:column;gap:26px}
.feature-row{
  display:grid;grid-template-columns:40% 1fr;gap:0;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-l);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:border-color .26s var(--ease),transform .26s var(--ease),box-shadow .26s var(--ease);
}
.feature-row:hover{border-color:rgba(43,224,183,.32);transform:translateY(-3px);box-shadow:var(--shadow-2)}
.feature-row.rev .feature-media{order:2}
.feature-media{position:relative;background:var(--bg-1);min-height:260px}
.feature-media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.feature-media::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(5,12,24,.35),rgba(5,12,24,.05))}
.feature-body{padding:34px 36px;display:flex;flex-direction:column;justify-content:center;gap:14px}
.feature-body h3{font-size:21px;line-height:1.35}
.feature-body p{color:var(--text-2);font-size:15.5px;line-height:1.8}
.mini-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:4px}
.mini-list li{
  font-size:13px;color:var(--text-2);padding:6px 12px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.05);border:1px solid var(--line);transition:color .2s var(--ease),border-color .2s var(--ease);
}
.mini-list li:hover{color:var(--brand);border-color:rgba(43,224,183,.35)}

/* ===== FAQ ===== */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:920px;margin:0 auto}
.faq-item{
  background:var(--glass);border:1px solid rgba(255,255,255,.1);border-radius:var(--r-m);
  backdrop-filter:blur(14px) saturate(140%);overflow:hidden;
  transition:border-color .24s var(--ease),background .24s var(--ease);
}
.faq-item:hover{border-color:rgba(43,224,183,.3)}
.faq-item.is-open{border-color:rgba(43,224,183,.4);background:rgba(43,224,183,.05)}
.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-1);
}
.faq-icon{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;
  border:1px solid rgba(43,224,183,.4);color:var(--brand);font-size:16px;line-height:1;
  transition:transform .3s var(--ease),background .3s var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:rgba(43,224,183,.16)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s var(--ease)}
.faq-a-inner{padding:0 22px 22px;color:var(--text-2);font-size:15px;line-height:1.8;border-top:1px solid var(--line);padding-top:16px;margin-top:0}

/* ===== CTA 条 ===== */
.cta-bar{
  position:relative;overflow:hidden;
  border-radius:var(--r-l);border:1px solid rgba(43,224,183,.28);
  background:linear-gradient(120deg,rgba(43,224,183,.14),rgba(15,32,56,.9) 55%,rgba(255,154,60,.10));
  padding:44px 46px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  box-shadow:var(--shadow-2);
}
.cta-bar::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(115deg,rgba(255,255,255,.05) 0 12px,transparent 12px 30px);
  opacity:.5;mask-image:linear-gradient(90deg,transparent,#000 70%);
}
.cta-bar h2{font-size:clamp(21px,2.4vw,30px);position:relative;z-index:1}
.cta-bar p{color:var(--text-2);font-size:15.5px;margin-top:10px;max-width:640px;position:relative;z-index:1}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1}

/* ===== 页脚 ===== */
.site-footer{
  margin-top:96px;padding:64px 0 26px;
  background:linear-gradient(180deg,rgba(10,21,38,.6),rgba(5,12,24,.96));
  border-top:1px solid var(--line);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.footer-brand p{color:var(--text-2);font-size:14.5px;line-height:1.8;margin:18px 0 22px;max-width:340px}
.footer-col h4{font-size:15px;margin-bottom:16px;letter-spacing:.04em}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{color:var(--text-2);font-size:14.5px;transition:color .2s var(--ease),transform .2s var(--ease);display:inline-block}
.footer-col a:hover{color:var(--brand);transform:translateX(3px)}
.footer-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;
  color:var(--text-3);font-size:13.5px;
}
.footer-bottom a{color:var(--text-2);transition:color .2s var(--ease)}
.footer-bottom a:hover{color:var(--brand)}

/* ===== 空态 / 状态 ===== */
.empty-state{
  text-align:center;padding:56px 24px;border-radius:var(--r-m);
  border:1px dashed rgba(255,255,255,.14);background:var(--glass);
}
.empty-state strong{display:block;font-size:17px;margin-bottom:8px}
.empty-state p{color:var(--text-2);font-size:14.5px;margin-bottom:20px}

/* ===== 响应式 ===== */
@media (max-width:1279px){
  .flow{grid-template-columns:repeat(3,1fr)}
  .flow::before{display:none}
}
@media (max-width:1023px){
  .nav-links{display:none}
  .nav-actions .btn-ghost{display:none}
  .nav-toggle{display:inline-flex}
  .section{padding:72px 0}
  .section--tight{padding:60px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .feature-body{padding:28px 26px}
  .cta-bar{padding:34px 28px}
}
@media (max-width:767px){
  .page-hero{padding:40px 0 48px}
  .flow{grid-template-columns:1fr;gap:16px}
  .flow-step{display:flex;gap:16px;align-items:flex-start}
  .flow-num{margin-bottom:0;flex:0 0 auto}
  .feature-row{grid-template-columns:1fr}
  .feature-row.rev .feature-media{order:0}
  .feature-media{min-height:210px}
  .section{padding:56px 0}
  .section--tight{padding:48px 0}
  .section-head{margin-bottom:30px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .logo-text span{display:none}
  .footer-grid{grid-template-columns:1fr}
  .page-hero h1{font-size:26px}
  .feature-body{padding:24px 20px}
  .cta-bar{padding:28px 20px}
  .nav-actions .btn-primary{padding:0 16px;font-size:14px}
  .hero-facts{flex-direction:column;align-items:flex-start}
  .fact-chip{width:100%;justify-content:space-between}
}

/* roulang page: category3 */
:root{
  --bg-0:#050C18; --bg-1:#0A1526; --bg-2:#0F2038;
  --line:rgba(255,255,255,.08); --line-strong:rgba(255,255,255,.14);
  --glass:rgba(255,255,255,.055);
  --brand:#2BE0B7; --brand-deep:#14B894;
  --accent:#FF9A3C; --alert:#FF5A5F;
  --text-1:#EAF2FF; --text-2:#A9BBD4; --text-3:#6E829D;
  --r-s:10px; --r-m:18px; --r-l:26px; --r-pill:999px;
  --shadow-1:0 12px 32px rgba(2,8,20,.55);
  --shadow-2:0 24px 56px rgba(2,8,20,.65);
  --glow:0 0 24px rgba(43,224,183,.35);
  --font-body:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-head:"Saira","Barlow Condensed","PingFang SC","Microsoft YaHei",sans-serif;
  --sec-y:clamp(56px,7vw,104px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;padding:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:var(--font-body);
  font-size:16px;line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(900px 520px at 12% -6%,rgba(43,224,183,.10),transparent 60%),
    radial-gradient(760px 460px at 92% 4%,rgba(255,154,60,.07),transparent 62%);
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3{font-family:var(--font-head);letter-spacing:.2px;line-height:1.22}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;position:relative;z-index:1}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(6,16,31,.72);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
  transition:background .28s ease,box-shadow .28s ease;
}
.site-header.is-scrolled{background:rgba(6,16,31,.92);box-shadow:var(--shadow-1)}
.nav{display:flex;align-items:center;gap:26px;height:84px;transition:height .28s ease}
.site-header.is-scrolled .nav{height:68px}
.logo{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto}
.logo-mark{
  width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
  font-family:var(--font-head);font-size:20px;font-weight:700;color:#04161a;
  background:linear-gradient(140deg,var(--brand),var(--brand-deep));
  box-shadow:var(--glow);
}
.logo-text{display:flex;flex-direction:column;line-height:1.1}
.logo-text strong{font-size:18px;letter-spacing:.6px;color:var(--text-1);font-family:var(--font-head)}
.logo-text span{font-size:10px;letter-spacing:2.4px;color:var(--text-3)}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:14px}
.nav-links a{
  position:relative;font-size:15px;color:var(--text-2);padding:6px 0;
  transition:color .22s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand-deep));
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease;border-radius:2px;
}
.nav-links a:hover,.nav-links a:focus-visible{color:var(--text-1)}
.nav-links a:hover::after,.nav-links a:focus-visible::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--brand)}
.nav-links a.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line-strong);
  background:var(--glass);cursor:pointer;position:relative;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:11px;width:22px;height:2px;border-radius:2px;background:var(--text-1);
  transition:transform .25s ease,opacity .25s ease;
}
.nav-toggle span{top:21px}
.nav-toggle span::before{top:-7px;left:0}
.nav-toggle span::after{top:7px;left:0}
body.nav-open .nav-toggle span{transform:rotate(45deg)}
body.nav-open .nav-toggle span::before{transform:rotate(-90deg) translateX(7px);opacity:0}
body.nav-open .nav-toggle span::after{transform:rotate(-90deg) translateX(7px);opacity:0}
.nav-backdrop{
  position:fixed;inset:0;background:rgba(3,8,18,.72);backdrop-filter:blur(3px);
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:85;
}
body.nav-open .nav-backdrop{opacity:1;visibility:visible}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-pill);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:all .24s ease;white-space:nowrap;
  font-family:var(--font-body);
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#04161a;box-shadow:var(--glow);
}
.btn-primary:hover{box-shadow:0 10px 30px rgba(43,224,183,.35);filter:brightness(1.06)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{
  background:var(--glass);border-color:rgba(43,224,183,.45);color:var(--brand);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{background:rgba(43,224,183,.12)}
.btn-ghost:active{transform:translateY(1px)}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;box-shadow:none}
.btn.is-loading{position:relative;color:transparent}
.btn.is-loading::after{
  content:"";position:absolute;width:16px;height:16px;border-radius:50%;
  border:2px solid rgba(4,22,26,.35);border-top-color:#04161a;animation:spin .8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;color:var(--text-2);font-size:15px;
  transition:color .22s ease;
}
.link-arrow::after{content:"→";transition:transform .22s ease}
.link-arrow:hover,.link-arrow:focus-visible{color:var(--brand)}
.link-arrow:hover::after{transform:translateX(4px)}

/* ---------- 页头 ---------- */
.page-hero{
  position:relative;padding:clamp(48px,6vw,82px) 0 clamp(44px,5.5vw,72px);
  background:linear-gradient(rgba(5,12,24,.82),rgba(5,12,24,.94)),url("/assets/images/backpic/back-2.webp") center/cover no-repeat,#071122;
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.85),transparent 85%);
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:20px}
.crumbs a{color:var(--text-2)}
.crumbs a:hover{color:var(--brand)}
.crumbs span.sep{opacity:.5}
.crumbs .current{color:var(--text-3)}
.page-hero h1{
  font-size:clamp(30px,4.4vw,54px);line-height:1.15;font-weight:700;max-width:20em;
}
.page-hero h1 em{font-style:normal;color:var(--brand)}
.hero-lead{margin-top:18px;font-size:clamp(15px,1.4vw,17px);color:var(--text-2);max-width:62ch}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border-radius:var(--r-pill);
  font-size:13px;color:var(--text-2);background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(10px);
}
.tag.is-brand{color:var(--brand);border-color:rgba(43,224,183,.35)}
.tag.is-accent{color:var(--accent);border-color:rgba(255,154,60,.35)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sec-y) 0;position:relative}
.section.is-tinted{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:clamp(28px,4vw,48px)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:2px;
  color:var(--brand);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--brand);opacity:.7}
.section-head h2{font-size:clamp(24px,3vw,36px);font-weight:700}
.section-head p{margin-top:14px;color:var(--text-2);font-size:15.5px}
.rule{height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.08),transparent);margin:0}

/* ---------- 规格对照 ---------- */
.spec-compare{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}
.spec-col{
  position:relative;background:var(--glass);border:1px solid rgba(255,255,255,.10);
  border-radius:var(--r-m);backdrop-filter:blur(14px) saturate(140%);
  padding:26px;box-shadow:var(--shadow-1);transition:transform .24s ease,border-color .24s ease;
}
.spec-col::before{
  content:"";position:absolute;top:0;left:24px;right:24px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.35),transparent);
}
.spec-col:hover{transform:translateY(-2px);border-color:rgba(43,224,183,.35)}
.spec-col.is-featured{border-color:rgba(43,224,183,.45);box-shadow:var(--shadow-2),0 0 0 1px rgba(43,224,183,.12) inset}
.spec-col header{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding-bottom:18px;border-bottom:1px solid var(--line)}
.spec-col h3{font-size:21px}
.spec-col .spec-price{font-family:var(--font-head);font-size:26px;color:var(--brand);font-variant-numeric:tabular-nums}
.spec-col .spec-price small{font-size:13px;color:var(--text-3);font-family:var(--font-body);margin-left:4px}
.spec-badge{
  position:absolute;top:-12px;right:22px;padding:5px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:700;color:#04161a;background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  box-shadow:var(--glow);
}
.spec-rows{margin-top:6px}
.spec-row{
  display:flex;align-items:flex-start;justify-content:space-between;gap:18px;
  padding:14px 0;border-bottom:1px dashed var(--line);
}
.spec-col .spec-row:last-child{border-bottom:0}
.spec-row dt{color:var(--text-3);font-size:14px;flex:0 0 42%}
.spec-row dd{margin:0;color:var(--text-1);font-size:14.5px;text-align:right;font-variant-numeric:tabular-nums}
.spec-row dd.is-on{color:var(--brand)}
.spec-row dd.is-off{color:var(--text-3)}
.spec-col .spec-cta{display:block;margin-top:22px;width:100%}
.compare-note{margin-top:22px;font-size:13.5px;color:var(--text-3)}

/* ---------- 指标条 ---------- */
.metric-strip{
  display:grid;grid-template-columns:repeat(4,1fr);
  border:1px solid var(--line);border-radius:var(--r-l);overflow:hidden;
  background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.015));
  backdrop-filter:blur(12px);
}
.metric{
  padding:30px 24px;text-align:center;border-right:1px solid var(--line);
  transition:background .24s ease;
}
.metric:last-child{border-right:0}
.metric:hover{background:rgba(43,224,183,.07)}
.metric strong{
  display:block;font-family:var(--font-head);font-size:clamp(28px,3.4vw,40px);
  color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.1;
}
.metric span{display:block;margin-top:10px;font-size:14px;color:var(--text-2)}

/* ---------- 权益说明 ---------- */
.rules-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:clamp(24px,4vw,52px);align-items:start}
.rules-copy h2{font-size:clamp(24px,3vw,36px)}
.rules-copy p{margin-top:16px;color:var(--text-2);font-size:15.5px;line-height:1.85}
.figure-card{
  margin-top:24px;border-radius:var(--r-m);overflow:hidden;border:1px solid var(--line);
  background:var(--bg-2);box-shadow:var(--shadow-1);
}
.figure-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.figure-card figcaption{padding:14px 18px;font-size:13px;color:var(--text-3);text-align:center}
.rules-list{border-top:1px solid var(--line)}
.rules-list li{
  display:flex;gap:16px;padding:18px 0;border-bottom:1px solid var(--line);
}
.rules-list .idx{
  flex:0 0 34px;height:34px;border-radius:10px;display:grid;place-items:center;
  font-family:var(--font-head);font-size:15px;color:var(--brand);
  background:rgba(43,224,183,.10);border:1px solid rgba(43,224,183,.28);
  font-variant-numeric:tabular-nums;
}
.rules-list h3{font-size:17px;margin-bottom:4px}
.rules-list p{color:var(--text-2);font-size:14.5px}

/* ---------- 表单 ---------- */
.form-shell{max-width:880px;margin:0 auto}
.form-card{
  background:var(--glass);border:1px solid rgba(255,255,255,.10);border-radius:var(--r-l);
  padding:clamp(22px,3.4vw,38px);backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-2);position:relative;
}
.form-card::before{
  content:"";position:absolute;top:0;left:34px;right:34px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.35),transparent);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px 20px}
.field{display:flex;flex-direction:column;gap:8px}
.field.is-full{grid-column:1 / -1}
.field label{font-size:14px;color:var(--text-2)}
.field .req{color:var(--accent);margin-left:4px}
.field input,.field select,.field textarea{
  height:48px;padding:0 14px;border-radius:var(--r-s);
  background:#0D1B2E;border:1px solid var(--line);color:var(--text-1);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea{height:auto;min-height:110px;padding:12px 14px;resize:vertical;line-height:1.7}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--text-3) 50%),linear-gradient(135deg,var(--text-3) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 15px) 21px;background-size:5px 5px,5px 5px;background-repeat:no-repeat}
.field input::placeholder,.field textarea::placeholder{color:#54677f}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(43,224,183,.15);
}
.field.has-error input,.field.has-error select{border-color:var(--alert)}
.field .err{font-size:13px;color:var(--alert);display:none}
.field.has-error .err{display:block}
.form-foot{grid-column:1 / -1;display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:6px}
.form-foot .tip{font-size:13px;color:var(--text-3)}
.form-success{
  display:none;text-align:center;padding:36px 20px;
}
.form-success.is-visible{display:block}
.form-success .check{
  width:62px;height:62px;margin:0 auto 18px;border-radius:50%;display:grid;place-items:center;
  background:rgba(43,224,183,.12);border:1px solid rgba(43,224,183,.4);color:var(--brand);
  font-size:26px;box-shadow:var(--glow);
}
.form-success h3{font-size:20px}
.form-success p{margin-top:10px;color:var(--text-2);font-size:14.5px}

/* ---------- 内链与 CTA ---------- */
.links-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.link-pill{
  display:inline-flex;align-items:center;gap:8px;padding:13px 20px;border-radius:var(--r-pill);
  background:var(--glass);border:1px solid var(--line);color:var(--text-2);font-size:14.5px;
  transition:all .24s ease;
}
.link-pill:hover{border-color:rgba(43,224,183,.45);color:var(--brand);transform:translateY(-2px)}
.cta-band{
  border-radius:var(--r-l);border:1px solid rgba(43,224,183,.28);
  background:linear-gradient(120deg,rgba(43,224,183,.12),rgba(255,154,60,.06));
  padding:clamp(24px,3.4vw,40px);display:flex;flex-wrap:wrap;gap:20px;
  align-items:center;justify-content:space-between;box-shadow:var(--shadow-1);
}
.cta-band h2{font-size:clamp(20px,2.4vw,28px)}
.cta-band p{margin-top:8px;color:var(--text-2);font-size:14.5px;max-width:56ch}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);padding:clamp(44px,5vw,72px) 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:clamp(22px,3vw,40px)}
.footer-brand p{margin:18px 0 20px;color:var(--text-2);font-size:14.5px;max-width:36ch}
.footer-col h4{font-size:15px;color:var(--text-1);margin-bottom:16px;font-family:var(--font-body);font-weight:700}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{color:var(--text-2);font-size:14.5px;display:inline-block;transition:color .2s ease,transform .2s ease}
.footer-col a:hover{color:var(--brand);transform:translateX(2px)}
.footer-bottom{
  margin-top:clamp(30px,4vw,52px);padding:20px 0;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  color:var(--text-3);font-size:13.5px;
}
.footer-bottom a{color:var(--text-2);border-bottom:1px solid rgba(255,255,255,.16)}
.footer-bottom a:hover{color:var(--brand)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .nav-links{gap:20px}
  .nav-links a{font-size:14.5px}
}
@media (max-width:1023px){
  .nav-toggle{display:block}
  .nav-links{
    position:fixed;top:0;right:0;height:100dvh;width:min(88vw,360px);
    flex-direction:column;align-items:stretch;gap:0;margin:0;padding:96px 24px 110px;
    background:rgba(8,18,34,.96);backdrop-filter:blur(18px);border-left:1px solid var(--line);
    transform:translateX(100%);transition:transform .3s ease;z-index:90;overflow-y:auto;
  }
  body.nav-open .nav-links{transform:translateX(0)}
  .nav-links a{font-size:17px;line-height:56px;border-bottom:1px solid var(--line);padding:0}
  .nav-links a::after{display:none}
  .nav-links a.is-active{color:var(--brand)}
  .nav-actions .btn-ghost{display:none}
  .nav-actions .btn{padding:11px 18px;font-size:14px}
  .spec-compare{grid-template-columns:1fr}
  .rules-grid{grid-template-columns:1fr}
  .metric-strip{grid-template-columns:1fr 1fr}
  .metric:nth-child(2){border-right:0}
  .metric:nth-child(1),.metric:nth-child(2){border-bottom:1px solid var(--line)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  .container{padding:0 18px}
  :root{--sec-y:clamp(48px,10vw,64px)}
  .form-grid{grid-template-columns:1fr}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .cta-band{flex-direction:column;align-items:stretch;text-align:left}
  .cta-band .btn{width:100%}
  .spec-row{flex-direction:column;gap:6px}
  .spec-row dt{flex:none}
  .spec-row dd{text-align:left}
}
@media (max-width:519px){
  .logo-text span{display:none}
  .metric-strip{grid-template-columns:1fr}
  .metric{border-right:0;border-bottom:1px solid var(--line)}
  .metric:last-child{border-bottom:0}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .page-hero h1{font-size:28px}
}