/* roulang page: index */
:root{
  --bg:#070B12;
  --panel:#0D1621;
  --panel-2:#111C29;
  --glass:rgba(255,255,255,.045);
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);
  --primary:#1FE08A;
  --primary-600:#10B472;
  --accent:#FF7A29;
  --info:#4CC9F0;
  --text:#E8EEF5;
  --muted:#97A6B8;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 12px 32px -16px rgba(0,0,0,.7);
  --shadow-hover:0 22px 50px -20px rgba(0,0,0,.85);
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  padding-bottom:76px;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
@media(min-width:768px){.container{padding:0 32px;}}
.num{font-family:'Barlow Condensed',system-ui,sans-serif;letter-spacing:.04em;font-variant-numeric:tabular-nums;}

/* ---------- header/nav ---------- */
.c-header{
  position:sticky;top:0;z-index:80;
  background:rgba(7,11,18,.62);
  border-bottom:1px solid transparent;
  transition:background .3s ease,border-color .3s ease,backdrop-filter .3s ease;
}
.c-header.is-scrolled{
  background:rgba(7,11,18,.88);
  backdrop-filter:blur(12px);
  border-bottom-color:var(--line);
}
.nav-desktop{
  display:none;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  height:72px;
  gap:18px;
}
@media(min-width:768px){.nav-desktop{display:grid;}}
.nav-left,.nav-right{display:flex;align-items:center;gap:26px;}
.nav-right{justify-content:flex-end;}
.nav-link{
  font-size:15px;color:var(--muted);position:relative;padding:6px 0;
  transition:color .22s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--text);}
.nav-link.is-active::after{transform:scaleX(1);}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:19px;font-weight:700;letter-spacing:.01em;color:var(--text);
  padding:0 8px;
}
.brand-mark{
  width:28px;height:28px;border-radius:9px;
  background:linear-gradient(140deg,var(--primary) 0%,var(--primary-600) 60%,#0A8E5C 100%);
  position:relative;flex:0 0 auto;
  box-shadow:0 8px 22px -10px rgba(31,224,138,.75);
}
.brand-mark::after{
  content:"";position:absolute;inset:8px 7px;border-radius:2px;
  background:rgba(4,20,12,.85);
  clip-path:polygon(0 0,100% 50%,0 100%,34% 50%);
}
.nav-cta{
  border:1px solid rgba(31,224,138,.45);
  color:var(--primary);
  font-size:14px;
  padding:8px 16px;
  border-radius:999px;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease;
}
.nav-cta:hover{background:rgba(31,224,138,.12);border-color:var(--primary);transform:translateY(-1px);}
.nav-cta:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}

.mobile-bar{display:flex;align-items:center;justify-content:space-between;height:64px;}
@media(min-width:768px){.mobile-bar{display:none;}}
.burger{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:var(--glass);display:flex;flex-direction:column;gap:5px;align-items:center;justify-content:center;
  cursor:pointer;transition:border-color .2s ease;
}
.burger:hover{border-color:rgba(31,224,138,.5);}
.burger span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;}
.drawer{
  position:fixed;left:0;right:0;top:0;z-index:90;
  background:rgba(9,14,22,.98);
  border-bottom:1px solid var(--line);
  transform:translateY(-102%);
  transition:transform .32s ease;
  padding:14px 20px 26px;
  max-height:100vh;overflow-y:auto;
}
.drawer.is-open{transform:translateY(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;height:56px;}
.drawer-close{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:transparent;
  cursor:pointer;font-size:20px;line-height:1;color:var(--muted);
}
.drawer-item{
  display:flex;align-items:center;justify-content:space-between;
  min-height:56px;border-bottom:1px solid rgba(255,255,255,.08);
  font-size:16px;color:var(--text);
}
.drawer-item.is-active{color:var(--primary);}
.drawer-actions{margin-top:20px;display:flex;flex-direction:column;gap:12px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:transform .2s ease,box-shadow .25s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.btn-primary{
  background:var(--primary);color:#04140C;
  box-shadow:0 10px 30px -8px rgba(31,224,138,.55);
}
.btn-primary:hover{
  background:#33e896;transform:translateY(-1px);
  box-shadow:0 16px 40px -10px rgba(31,224,138,.7);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 8px 22px -10px rgba(31,224,138,.5);}
.btn-primary:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.btn-ghost{
  background:var(--glass);border-color:rgba(255,255,255,.18);color:var(--text);
}
.btn-ghost:hover{border-color:rgba(31,224,138,.5);background:rgba(31,224,138,.07);transform:translateY(-1px);}
.btn-ghost:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;cursor:not-allowed;}
.link-text{
  color:var(--primary);border-bottom:1px solid rgba(31,224,138,.45);
  padding-bottom:2px;transition:border-color .2s ease,color .2s ease;
}
.link-text:hover{border-bottom-color:var(--primary);color:#4df0a4;}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line-soft);}
.hero-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(7,11,18,.55) 0%,rgba(7,11,18,.92) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:22px 22px;opacity:.06;
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1fr;gap:36px;
  padding-top:64px;padding-bottom:64px;
  min-height:560px;align-content:center;
}
@media(min-width:1024px){
  .hero-inner{grid-template-columns:7fr 5fr;gap:48px;min-height:640px;padding-top:88px;padding-bottom:88px;}
}
.badge{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--primary);
  background:rgba(31,224,138,.10);
  border:1px solid rgba(31,224,138,.28);
  padding:6px 14px;border-radius:999px;
}
.hero h1{
  margin-top:20px;
  font-size:clamp(30px,4.6vw,58px);
  line-height:1.18;font-weight:700;letter-spacing:-.02em;
}
.hero-sub{
  margin-top:18px;max-width:640px;color:var(--muted);font-size:17px;line-height:1.85;
}
.hero-actions{margin-top:32px;display:flex;flex-direction:column;gap:14px;}
@media(min-width:640px){.hero-actions{flex-direction:row;}}
.hero-trust{
  margin-top:30px;display:flex;flex-wrap:wrap;gap:12px 22px;font-size:13px;color:var(--muted);
}
.hero-trust li{display:flex;align-items:center;gap:8px;}
.dot{width:6px;height:6px;border-radius:50%;background:var(--primary);flex:0 0 auto;box-shadow:0 0 10px rgba(31,224,138,.9);}
.hero-panel{
  background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:20px;
  box-shadow:var(--shadow);
  position:relative;
  backdrop-filter:blur(6px);
}
.hero-panel::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,rgba(31,224,138,.6),rgba(31,224,138,0));
  border-radius:var(--radius) var(--radius) 0 0;
}
.panel-head{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted);}
.panel-live{display:inline-flex;align-items:center;gap:6px;color:var(--accent);}
.panel-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:18px;}
.stat{border-left:1px solid var(--line);padding-left:12px;}
.stat:first-child{border-left:0;padding-left:0;}
.stat-num{font-size:28px;font-weight:700;color:var(--text);line-height:1.1;}
.stat-num.accent{color:var(--primary);}
.stat-label{font-size:12px;color:var(--muted);margin-top:4px;}
.panel-thumb{margin-top:18px;border-radius:var(--radius-sm);overflow:hidden;border:1px solid var(--line);aspect-ratio:16/10;}
.panel-thumb img{width:100%;height:100%;object-fit:cover;}
.progress{margin-top:18px;height:6px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden;}
.progress span{display:block;height:100%;width:72%;border-radius:999px;background:linear-gradient(90deg,var(--primary),var(--primary-600));}
.progress-label{margin-top:8px;font-size:12px;color:var(--muted);}

/* ---------- sections ---------- */
.section{padding:64px 0;border-top:1px solid var(--line-soft);}
@media(min-width:768px){.section{padding:96px 0;}}
.section-head{max-width:780px;}
.section-tag{
  display:inline-block;font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--primary);margin-bottom:12px;
}
.section-head h2{
  font-size:clamp(22px,2.6vw,34px);font-weight:700;line-height:1.3;letter-spacing:-.01em;
}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px;max-width:820px;}

/* ---------- trust bar ---------- */
.trust-bar{
  display:grid;grid-template-columns:1fr;gap:18px;
  padding:26px 22px;border:1px solid var(--line);border-radius:var(--radius);
  background:var(--panel);
  box-shadow:var(--shadow);
}
@media(min-width:768px){.trust-bar{grid-template-columns:repeat(4,1fr);gap:0;}}
.trust-item{padding:0 6px;}
@media(min-width:768px){
  .trust-item{border-left:1px solid var(--line);padding:0 22px;}
  .trust-item:first-child{border-left:0;padding-left:0;}
}
.trust-item .num{font-size:32px;font-weight:700;color:var(--primary);line-height:1.1;}
.trust-item h3{font-size:15px;font-weight:600;margin-top:8px;}
.trust-item p{font-size:13px;color:var(--muted);margin-top:4px;line-height:1.7;}
@media(max-width:767px){
  .trust-scroll{display:flex;gap:16px;overflow-x:auto;padding-bottom:6px;scrollbar-width:thin;}
  .trust-scroll .trust-item{min-width:220px;}
}

/* ---------- points ---------- */
.point-grid{display:grid;grid-template-columns:1fr;gap:20px;margin-top:38px;}
@media(min-width:1024px){.point-grid{grid-template-columns:1fr 1fr;gap:24px;}}
.point-card{
  position:relative;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 26px 26px 30px;box-shadow:var(--shadow);
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.point-card::before{
  content:"";position:absolute;left:0;top:26px;bottom:26px;width:4px;border-radius:0 4px 4px 0;
  background:linear-gradient(180deg,var(--primary),rgba(31,224,138,.15));
}
.point-card:hover{border-color:rgba(31,224,138,.32);transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.point-card.tall{padding-bottom:38px;}
.point-no{font-size:14px;color:var(--accent);letter-spacing:.12em;}
.point-card h3{margin-top:10px;font-size:19px;font-weight:600;}
.point-card p{margin-top:10px;color:var(--muted);font-size:15px;line-height:1.85;}
.point-meta{margin-top:16px;display:flex;flex-wrap:wrap;gap:8px;}
.chip{
  font-size:12px;color:var(--muted);border:1px solid var(--line);
  padding:4px 12px;border-radius:999px;background:var(--glass);
  transition:color .2s ease,border-color .2s ease;
}
.chip:hover{color:var(--primary);border-color:rgba(31,224,138,.4);}
.chip-primary{color:var(--primary);border-color:rgba(31,224,138,.35);background:rgba(31,224,138,.08);}

/* ---------- scenes ---------- */
.scene{display:grid;grid-template-columns:1fr;gap:26px;align-items:center;margin-top:40px;}
@media(min-width:900px){.scene{grid-template-columns:6fr 6fr;gap:44px;}}
@media(min-width:900px){.scene.reverse .scene-media{order:2;}}
.scene-media{
  border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow);aspect-ratio:4/3;background:var(--panel);
}
.scene-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.scene-media:hover img{transform:scale(1.03);}
.scene-body .step{font-size:13px;color:var(--accent);letter-spacing:.14em;}
.scene-body h3{font-size:clamp(19px,2vw,24px);font-weight:600;margin-top:10px;}
.scene-body p{margin-top:12px;color:var(--muted);font-size:15px;line-height:1.9;max-width:620px;}
.scene-body .link-text{display:inline-block;margin-top:16px;font-size:15px;}

/* ---------- posts ---------- */
.post-grid{display:grid;grid-template-columns:1fr;gap:22px;margin-top:38px;}
@media(min-width:768px){.post-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.post-grid{grid-template-columns:repeat(3,1fr);gap:24px;}}
.post-card{
  display:flex;flex-direction:column;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.post-card:hover{transform:translateY(-4px);border-color:rgba(31,224,138,.3);box-shadow:var(--shadow-hover);}
.post-cover{aspect-ratio:16/10;overflow:hidden;background:var(--panel-2);}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.post-card:hover .post-cover img{transform:scale(1.03);}
.post-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:12px;color:var(--muted);}
.post-body h3{
  font-size:17px;font-weight:600;line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-body p{
  font-size:14px;color:var(--muted);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.post-more{margin-top:auto;font-size:14px;color:var(--primary);display:inline-flex;align-items:center;gap:6px;}
.empty-state{
  margin-top:38px;padding:44px 24px;text-align:center;
  background:var(--panel);border:1px dashed var(--line);border-radius:var(--radius);
}
.empty-state h3{font-size:17px;font-weight:600;}
.empty-state p{color:var(--muted);font-size:14px;margin-top:8px;}

/* ---------- social ---------- */
.social-grid{display:grid;grid-template-columns:1fr;gap:20px;margin-top:38px;}
@media(min-width:768px){.social-grid{grid-template-columns:repeat(3,1fr);}}
.quote{
  background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.015));
  border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);
}
.quote p{font-size:15px;line-height:1.9;color:var(--text);}
.quote footer{margin-top:16px;font-size:13px;color:var(--muted);display:flex;align-items:center;gap:10px;}
.avatar{
  width:32px;height:32px;border-radius:50%;background:rgba(31,224,138,.14);
  border:1px solid rgba(31,224,138,.3);display:flex;align-items:center;justify-content:center;
  color:var(--primary);font-size:13px;font-weight:600;
}
.partner-strip{
  margin-top:26px;display:flex;flex-wrap:wrap;gap:12px 14px;align-items:center;
  padding-top:24px;border-top:1px solid var(--line-soft);
}
.partner{
  font-size:13px;color:rgba(151,166,184,.6);border:1px solid var(--line);
  padding:8px 16px;border-radius:999px;filter:grayscale(1);
  transition:color .25s ease,filter .25s ease,border-color .25s ease;
}
.partner:hover{filter:grayscale(0);color:var(--text);border-color:rgba(31,224,138,.35);}

/* ---------- faq ---------- */
.faq-list{margin-top:34px;border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;
  min-height:52px;padding:20px 4px;
  display:grid;grid-template-columns:48px 1fr 24px;align-items:center;gap:12px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-no{font-size:15px;color:var(--muted);letter-spacing:.1em;}
.faq-q{font-size:16px;font-weight:600;color:var(--text);}
.faq-arrow{color:var(--muted);transition:transform .25s ease,color .25s ease;text-align:center;font-size:14px;}
.faq-item[open] .faq-q{color:var(--primary);}
.faq-item[open] .faq-no{color:var(--primary);}
.faq-item[open] .faq-arrow{transform:rotate(180deg);color:var(--primary);}
.faq-a{padding:0 4px 22px 60px;color:var(--muted);font-size:15px;line-height:1.85;max-width:840px;position:relative;}
.faq-a::before{
  content:"";position:absolute;left:22px;top:2px;bottom:22px;width:2px;border-radius:2px;
  background:var(--primary);opacity:.55;
}
@media(max-width:640px){
  .faq-item summary{grid-template-columns:38px 1fr 20px;}
  .faq-a{padding-left:50px;}
  .faq-a::before{left:14px;}
}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:24px;
  border:1px solid var(--line);
  padding:52px 24px;text-align:center;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(7,11,18,.62),rgba(7,11,18,.94)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.cta-inner{position:relative;z-index:2;}
.cta-band h2{font-size:clamp(22px,2.8vw,34px);font-weight:700;}
.cta-band p{margin:16px auto 0;max-width:660px;color:var(--muted);font-size:16px;}
.cta-actions{margin-top:28px;display:flex;flex-direction:column;gap:14px;justify-content:center;}
@media(min-width:640px){.cta-actions{flex-direction:row;}}

/* ---------- footer ---------- */
.c-footer{border-top:1px solid var(--line);margin-top:8px;background:#060A10;}
.footer-grid{
  display:grid;grid-template-columns:1fr;gap:32px;padding:52px 0 30px;
}
@media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;}}
.footer-brand .brand{font-size:18px;padding:0;}
.footer-brand p{margin-top:16px;color:var(--muted);font-size:14px;max-width:320px;line-height:1.85;}
.footer-contact{margin-top:16px;font-size:14px;color:var(--muted);}
.footer-contact span{color:var(--text);}
.c-footer h3{font-size:15px;font-weight:600;margin-bottom:16px;}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:14px;color:var(--muted);transition:color .2s ease;}
.footer-links a:hover{color:var(--primary);}
.footer-note{margin-top:10px;font-size:13px;color:var(--muted);}
.footer-bottom{
  border-top:1px solid var(--line-soft);padding:18px 0 24px;
  display:flex;flex-direction:column;gap:8px;font-size:13px;color:var(--muted);
}
@media(min-width:768px){.footer-bottom{flex-direction:row;align-items:center;justify-content:space-between;}}

/* ---------- mobile convert bar ---------- */
.convert-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  display:flex;gap:10px;align-items:center;
  padding:10px 16px;height:64px;
  background:rgba(9,14,22,.92);
  backdrop-filter:blur(10px);
  border-top:1px solid rgba(31,224,138,.2);
}
.convert-bar .btn{flex:1;padding:11px 12px;font-size:14px;}
@media(min-width:768px){.convert-bar{display:none;}body{padding-bottom:0;}}

/* roulang page: category1 */
:root{
  --bg:#070B12;
  --panel:#0D1621;
  --glass:rgba(255,255,255,.045);
  --line:rgba(255,255,255,.10);
  --primary:#1FE08A;
  --primary-600:#10B472;
  --accent:#FF7A29;
  --info:#4CC9F0;
  --text:#E8EEF5;
  --muted:#97A6B8;
  --radius-card:20px;
  --radius-btn:12px;
  --shadow-1:0 12px 32px -16px rgba(0,0,0,.7);
  --shadow-2:0 22px 50px -20px rgba(0,0,0,.85);
  --num-font:"Barlow Condensed","PingFang SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased;
  padding-bottom:76px;
}
@media(min-width:1024px){body{padding-bottom:0}}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.num{font-family:var(--num-font);font-weight:600;letter-spacing:.02em;font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.container{padding:0 32px}}

/* ---------- header ---------- */
.c-header{position:sticky;top:0;z-index:60;border-bottom:1px solid transparent;transition:background .3s ease,border-color .3s ease}
.c-header.is-scrolled{background:rgba(7,11,18,.85);backdrop-filter:blur(12px);border-bottom-color:var(--line)}
.nav-desktop{display:none}
@media(min-width:1024px){.nav-desktop{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:20px;height:72px}}
.nav-left{display:flex;align-items:center;gap:4px}
.nav-right{display:flex;align-items:center;justify-content:flex-end;gap:4px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.brand-mark{width:22px;height:22px;border-radius:7px;background:linear-gradient(135deg,var(--primary),var(--primary-600));box-shadow:0 0 0 4px rgba(31,224,138,.12),0 0 18px rgba(31,224,138,.38)}
.nav-link{position:relative;padding:9px 12px;font-size:14.5px;color:var(--muted);border-radius:10px;white-space:nowrap;transition:color .2s,background .2s}
.nav-link:hover{color:var(--text);background:var(--glass)}
.nav-link.is-active{color:var(--text)}
.nav-link.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;border-radius:2px;background:var(--primary);box-shadow:0 0 10px rgba(31,224,138,.6)}
.nav-cta{display:inline-flex;align-items:center;gap:6px;margin-left:8px;padding:9px 16px;font-size:14.5px;font-weight:600;color:var(--primary);border:1px solid rgba(31,224,138,.45);border-radius:999px;white-space:nowrap;transition:background .22s,border-color .22s,box-shadow .22s}
.nav-cta:hover{background:rgba(31,224,138,.12);border-color:var(--primary);box-shadow:0 0 18px rgba(31,224,138,.28)}
.mobile-bar{display:flex;align-items:center;justify-content:space-between;height:64px}
@media(min-width:1024px){.mobile-bar{display:none}}
.burger{width:44px;height:44px;display:inline-flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;background:var(--glass);border:1px solid var(--line);border-radius:12px;cursor:pointer;transition:background .2s,border-color .2s}
.burger:hover{border-color:rgba(31,224,138,.35)}
.burger span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform .25s,opacity .25s}
.burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.is-open span:nth-child(2){opacity:0}
.burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.drawer{position:fixed;inset:0;z-index:80;background:rgba(7,11,18,.97);backdrop-filter:blur(14px);transform:translateY(-100%);transition:transform .35s ease;padding:24px 20px;overflow:auto}
.drawer.is-open{transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{width:44px;height:44px;border-radius:12px;background:var(--glass);border:1px solid var(--line);cursor:pointer;font-size:17px}
.drawer-close:hover{border-color:rgba(31,224,138,.4)}
.drawer-link{display:flex;align-items:center;justify-content:space-between;height:56px;padding:0 4px;border-bottom:1px solid rgba(255,255,255,.08);font-size:16px;color:var(--text)}
.drawer-link i{color:var(--muted);font-size:12px}
.drawer-link.is-active{color:var(--primary)}
.drawer-link.is-active i{color:var(--primary)}
.drawer-cta{margin-top:22px;display:flex;flex-direction:column;gap:12px}
.drawer-note{margin-top:22px;font-size:13.5px;color:var(--muted);line-height:1.9}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 22px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;text-align:center;transition:transform .22s,box-shadow .22s,background .22s,border-color .22s,filter .22s}
.btn-primary{background:var(--primary);color:#04140C;box-shadow:0 10px 30px -8px rgba(31,224,138,.55)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 14px 36px -8px rgba(31,224,138,.7)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:rgba(255,255,255,.03);border-color:rgba(255,255,255,.18);color:var(--text)}
.btn-ghost:hover{border-color:rgba(31,224,138,.4);background:rgba(31,224,138,.08)}
.btn-ghost:active{transform:translateY(1px)}
.btn:disabled{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none}

/* ---------- hero ---------- */
.p-hero{position:relative;padding:56px 0 64px;border-bottom:1px solid var(--line);
  background-image:linear-gradient(180deg,rgba(7,11,18,.62),rgba(7,11,18,.95)),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center}
@media(min-width:768px){.p-hero{padding:82px 0 90px}}
.p-hero-grid{display:grid;grid-template-columns:1fr;gap:36px;align-items:center}
@media(min-width:1024px){.p-hero-grid{grid-template-columns:7fr 5fr;gap:48px}}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;font-size:13px;letter-spacing:.04em;color:var(--primary);background:rgba(31,224,138,.10);border:1px solid rgba(31,224,138,.28)}
h1{font-size:clamp(30px,4.6vw,58px);line-height:1.14;font-weight:700;letter-spacing:-.02em;margin:18px 0 16px}
.lede{font-size:17px;color:var(--muted);max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0 22px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px}
.hero-tags li{display:inline-flex;align-items:center;gap:7px;padding:7px 13px;border-radius:999px;font-size:13.5px;color:var(--muted);background:var(--glass);border:1px solid var(--line)}
.hero-tags li i{color:var(--primary);font-size:11px}
.data-card{position:relative;background:linear-gradient(180deg,rgba(255,255,255,.065),rgba(255,255,255,.02));border:1px solid var(--line);border-radius:var(--radius-card);padding:22px;box-shadow:var(--shadow-1);backdrop-filter:blur(8px);overflow:hidden}
.data-card::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,rgba(31,224,138,.6),transparent)}
.data-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-bottom:18px}
.data-stats .v{font-size:34px;line-height:1.1;color:var(--text)}
.data-stats .k{font-size:13px;color:var(--muted)}
.data-thumb{border-radius:14px;overflow:hidden;border:1px solid var(--line)}
.data-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover}
.data-bar{height:6px;border-radius:999px;background:rgba(255,255,255,.08);margin-top:16px;overflow:hidden}
.data-bar span{display:block;height:100%;width:72%;border-radius:999px;background:linear-gradient(90deg,var(--primary),var(--primary-600))}
.data-foot{display:flex;justify-content:space-between;gap:10px;font-size:13px;color:var(--muted);margin-top:10px}

/* ---------- sections ---------- */
.section{padding:64px 0}
@media(min-width:768px){.section{padding:88px 0}}
.section + .section{border-top:1px solid rgba(255,255,255,.06)}
.section-head{max-width:780px;margin-bottom:38px}
.section-head h2{font-size:clamp(22px,2.6vw,34px);line-height:1.25;font-weight:700;letter-spacing:-.01em}
.section-head p{margin-top:12px;color:var(--muted);font-size:16px;max-width:800px}

/* ---------- topic cards ---------- */
.topic-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media(min-width:768px){.topic-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.topic-grid{grid-template-columns:repeat(3,1fr)}}
.topic-card{position:relative;display:flex;flex-direction:column;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease}
.topic-card::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;z-index:2;background:linear-gradient(90deg,rgba(31,224,138,.55),transparent)}
.topic-card:hover{transform:translateY(-4px);border-color:rgba(31,224,138,.35);box-shadow:var(--shadow-2),0 0 28px -14px rgba(31,224,138,.6)}
.topic-thumb{aspect-ratio:16/10;overflow:hidden}
.topic-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.topic-card:hover .topic-thumb img{transform:scale(1.03)}
.topic-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.badge{align-self:flex-start;display:inline-flex;align-items:center;gap:6px;padding:4px 11px;border-radius:999px;font-size:12.5px;color:var(--primary);background:rgba(31,224,138,.10);border:1px solid rgba(31,224,138,.25)}
.badge.alt{color:var(--accent);background:rgba(255,122,41,.10);border-color:rgba(255,122,41,.28)}
.badge.info{color:var(--info);background:rgba(76,201,240,.10);border-color:rgba(76,201,240,.28)}
h3{font-size:19px;font-weight:600;line-height:1.4}
.topic-body p{font-size:14.5px;color:var(--muted);line-height:1.78;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.link-more{display:inline-flex;align-items:center;gap:7px;font-size:14.5px;font-weight:600;color:var(--primary)}
.link-more i{transition:transform .25s}
.topic-body .link-more{margin-top:auto;padding-top:8px}
.topic-card:hover .link-more i{transform:translateX(4px)}

/* ---------- stat grid ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px}
.stat-card{padding:22px;border-radius:16px;background:var(--glass);border:1px solid var(--line);transition:border-color .25s,background .25s}
.stat-card:hover{border-color:rgba(31,224,138,.3);background:rgba(255,255,255,.06)}
.stat-card .v{font-size:40px;line-height:1.05;color:var(--primary)}
.stat-card .k{font-size:14px;color:var(--text);margin-top:8px;font-weight:600}
.stat-card .d{font-size:13.5px;color:var(--muted);margin-top:4px}

/* ---------- find list ---------- */
.find-list{border-top:1px solid rgba(255,255,255,.08)}
.find-item{display:grid;grid-template-columns:auto 1fr;gap:8px 18px;align-items:center;padding:22px 0;border-bottom:1px solid rgba(255,255,255,.08);transition:background .25s}
.find-item:hover{background:rgba(255,255,255,.02)}
.find-idx{font-size:28px;line-height:1;color:var(--accent)}
.find-main h3{margin-bottom:6px}
.find-main p{font-size:14.5px;color:var(--muted);max-width:820px}
.find-link{grid-column:2;font-size:14.5px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:7px}
@media(min-width:768px){
  .find-item{grid-template-columns:auto 1fr auto;gap:24px}
  .find-link{grid-column:auto;white-space:nowrap}
}

/* ---------- faq ---------- */
.faq-list{max-width:880px}
.faq-item{border:1px solid var(--line);border-radius:16px;background:var(--glass);margin-bottom:14px;overflow:hidden;transition:border-color .25s,background .25s}
.faq-item[open]{border-color:rgba(31,224,138,.35);background:rgba(31,224,138,.04)}
.faq-item summary{display:flex;align-items:center;gap:16px;padding:18px 20px;min-height:56px;cursor:pointer;list-style:none;font-size:16px;font-weight:600}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;color:var(--muted);margin-left:auto;transition:transform .25s,color .25s}
.faq-item[open] summary::after{transform:rotate(180deg);color:var(--primary)}
.faq-num{font-family:var(--num-font);font-size:20px;color:var(--primary);min-width:30px}
.faq-body{padding:0 20px 20px 66px;font-size:15px;color:var(--muted)}

/* ---------- cta ---------- */
.cta-block{position:relative;border-radius:24px;overflow:hidden;padding:48px 24px;text-align:center;border:1px solid var(--line);
  background-image:linear-gradient(rgba(7,11,18,.72),rgba(7,11,18,.94)),url("/assets/images/backpic/back-3.png");
  background-size:cover;background-position:center}
@media(min-width:768px){.cta-block{padding:72px 48px}}
.cta-block h2{margin-bottom:14px}
.cta-block p{color:var(--muted);max-width:660px;margin:0 auto 28px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--line);background:#050810;margin-top:16px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;padding:52px 0 32px}
@media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr}}
.footer-title{font-size:14px;font-weight:700;letter-spacing:.06em;color:var(--text);margin-bottom:16px}
.footer-desc{font-size:14px;color:var(--muted);max-width:330px;margin-top:16px}
.footer-contact{font-size:14px;color:var(--muted);line-height:2;margin-top:12px}
.footer-list li{margin-bottom:10px;font-size:14px;color:var(--muted)}
.footer-list a{transition:color .2s}
.footer-list a:hover{color:var(--primary)}
.copyright{margin-top:12px;padding:20px 0 22px;border-top:1px solid rgba(255,255,255,.07);display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:var(--muted)}

/* ---------- mobile sticky cta ---------- */
.mobile-cta{position:fixed;left:0;right:0;bottom:0;z-index:55;display:flex;gap:10px;padding:10px 16px calc(10px + env(safe-area-inset-bottom));background:rgba(7,11,18,.92);backdrop-filter:blur(12px);border-top:1px solid rgba(31,224,138,.2)}
.mobile-cta .btn{flex:1;padding:11px 14px;font-size:14.5px}
@media(min-width:1024px){.mobile-cta{display:none}}

/* roulang page: article */
:root{
  --bg:#070B12;
  --panel:#0D1621;
  --glass:rgba(255,255,255,.045);
  --line:rgba(255,255,255,.10);
  --primary:#1FE08A;
  --primary-600:#10B472;
  --accent:#FF7A29;
  --info:#4CC9F0;
  --text:#E8EEF5;
  --muted:#97A6B8;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --shadow-1:0 12px 32px -16px rgba(0,0,0,.7);
  --shadow-2:0 22px 50px -20px rgba(0,0,0,.85);
  --num:"Barlow Condensed","PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
::selection{background:rgba(31,224,138,.32)}
a:focus-visible,button:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}

.container{max-width:1240px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 32px}}
.section{padding:56px 0}
@media (min-width:768px){.section{padding:76px 0}}
.section-line{border-top:1px solid rgba(255,255,255,.06)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-sm);border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,color .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#04140C;box-shadow:0 10px 30px -8px rgba(31,224,138,.55)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 14px 38px -8px rgba(31,224,138,.7)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 18px -8px rgba(31,224,138,.5)}
.btn-ghost{background:rgba(255,255,255,.03);border-color:rgba(255,255,255,.18);color:var(--text)}
.btn-ghost:hover{border-color:rgba(31,224,138,.45);background:rgba(31,224,138,.07);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;pointer-events:none}
.btn-sm{padding:9px 16px;font-size:14px}

/* ---------- 导航 ---------- */
.c-header{position:sticky;top:0;z-index:60;background:rgba(7,11,18,.62);transition:background .25s ease,border-color .25s ease,backdrop-filter .25s ease;border-bottom:1px solid transparent}
.c-header.is-scrolled{background:rgba(7,11,18,.85);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom-color:var(--line)}
.nav-desktop{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px}
.nav-left,.nav-right{display:flex;align-items:center;gap:4px;flex:1}
.nav-right{justify-content:flex-end}
.nav-link{position:relative;padding:10px 12px;font-size:14.5px;color:var(--muted);border-radius:10px;transition:color .2s ease,background .2s ease}
.nav-link:hover{color:var(--text);background:var(--glass)}
.nav-link.is-active{color:var(--text)}
.nav-link.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:2px;background:var(--primary)}
.nav-cta{
  margin-left:10px;padding:9px 18px;border-radius:var(--r-sm);font-size:14px;font-weight:600;
  color:var(--primary);border:1px solid rgba(31,224,138,.45);background:rgba(31,224,138,.06);
  transition:background .22s ease,color .22s ease,transform .2s ease;
}
.nav-cta:hover{background:rgba(31,224,138,.14);transform:translateY(-1px)}
.nav-cta:active{transform:translateY(1px)}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:700;letter-spacing:.01em;color:var(--text)}
.brand-mark{position:relative;width:22px;height:22px;border-radius:7px;background:linear-gradient(135deg,var(--primary),#0A8F5B);box-shadow:0 0 0 1px rgba(31,224,138,.35),0 8px 20px -8px rgba(31,224,138,.6)}
.brand-mark::after{content:"";position:absolute;inset:6px;border-radius:3px;background:#04140C}
.mobile-bar{display:none;align-items:center;justify-content:space-between;height:64px}
.burger{width:44px;height:44px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;border-radius:12px;background:var(--glass);border:1px solid var(--line)}
.burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform .25s ease,opacity .2s ease}
.burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.is-open span:nth-child(2){opacity:0}
.burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
@media (max-width:1023px){
  .nav-desktop{display:none}
  .mobile-bar{display:flex}
}
.mobile-drawer{
  position:fixed;left:0;right:0;top:0;z-index:55;padding-top:64px;max-height:100vh;overflow-y:auto;
  background:rgba(7,11,18,.97);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transform:translateY(-14px);opacity:0;pointer-events:none;transition:transform .28s ease,opacity .28s ease;
}
.mobile-drawer.is-open{transform:translateY(0);opacity:1;pointer-events:auto}
.drawer-link{display:flex;align-items:center;height:56px;padding:0 20px;border-bottom:1px solid rgba(255,255,255,.08);color:var(--text);font-size:15px}
.drawer-link.is-active{color:var(--primary)}
.drawer-cta{margin:20px;width:calc(100% - 40px)}
.drawer-foot{padding:6px 20px 28px;color:var(--muted);font-size:13.5px;line-height:1.9}

/* ---------- 页面横幅 ---------- */
.page-banner{
  position:relative;padding:44px 0 36px;
  background-image:linear-gradient(180deg,rgba(7,11,18,.62),rgba(7,11,18,.94)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);margin-bottom:18px}
.breadcrumb a{color:var(--muted);transition:color .2s ease}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{opacity:.5}
.breadcrumb .current{color:#C7D3DF;max-width:min(640px,80vw);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;
  font-size:12.5px;letter-spacing:.06em;color:var(--primary);
  background:rgba(31,224,138,.10);border:1px solid rgba(31,224,138,.28);
}
.badge-soft{color:#B9C6D4;background:var(--glass);border-color:var(--line)}
.badge-accent{color:var(--accent);background:rgba(255,122,41,.10);border-color:rgba(255,122,41,.3)}
.page-banner h1{
  font-size:clamp(26px,3.4vw,42px);font-weight:700;letter-spacing:-.02em;line-height:1.32;
  margin:16px 0 14px;max-width:900px;
}
.page-banner .lead{color:var(--muted);font-size:16.5px;max-width:820px}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:20px;color:var(--muted);font-size:13.5px}
.meta-row .num{font-family:var(--num);font-size:17px;letter-spacing:.04em;color:#C7D3DF}
.dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.28)}

/* ---------- 文章布局 ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:28px;align-items:start}
@media (min-width:1024px){.article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:32px}}
.article-card{
  position:relative;background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02));
  border:1px solid var(--line);border-radius:var(--r-lg);padding:26px 20px;box-shadow:var(--shadow-1);
}
.article-card::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;border-radius:var(--r-lg) var(--r-lg) 0 0;background:linear-gradient(90deg,rgba(31,224,138,.55),rgba(31,224,138,0))}
@media (min-width:768px){.article-card{padding:38px 42px}}
.article-body{max-width:820px;font-size:16px;line-height:1.88;color:#D7E1EB}
.article-body p{margin:0 0 18px}
.article-body h2{
  position:relative;font-size:clamp(20px,2vw,26px);font-weight:700;color:var(--text);
  margin:36px 0 14px;padding-left:15px;line-height:1.45;
}
.article-body h2::before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:4px;background:var(--primary)}
.article-body h3{font-size:19px;font-weight:600;color:var(--text);margin:28px 0 10px}
.article-body h4{font-size:17px;font-weight:600;color:var(--text);margin:22px 0 8px}
.article-body a{color:var(--info);border-bottom:1px solid rgba(76,201,240,.4)}
.article-body a:hover{color:#7BDCFB}
.article-body img{border-radius:var(--r-md);border:1px solid var(--line);margin:22px 0}
.article-body blockquote{
  margin:22px 0;padding:16px 20px;border-left:4px solid var(--primary);border-radius:0 var(--r-sm) var(--r-sm) 0;
  background:var(--glass);color:#C4D0DC;
}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:24px}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:8px 0}
.article-body ul li::marker{color:var(--primary)}
.article-body ol li::marker{color:var(--primary);font-family:var(--num)}
.article-body table{
  display:block;width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;
  border-collapse:collapse;margin:22px 0;font-size:15px;border-radius:var(--r-sm);
}
.article-body th,.article-body td{padding:11px 14px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap}
.article-body th{color:var(--text);background:rgba(255,255,255,.05);font-weight:600}
.article-body tr:nth-child(even) td{background:rgba(255,255,255,.025)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:30px 0}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:-12px}

.article-tags{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:34px;padding-top:24px;border-top:1px solid var(--line)}
.article-tags .tag{font-size:13px;color:#B9C6D4;padding:6px 13px;border-radius:999px;background:var(--glass);border:1px solid var(--line);transition:border-color .2s ease,color .2s ease}
.article-tags .tag:hover{border-color:rgba(31,224,138,.4);color:var(--primary)}

.empty-state{padding:36px 8px;text-align:center}
.empty-state h2{font-size:22px;font-weight:700;margin-bottom:12px}
.empty-state p{color:var(--muted);margin-bottom:22px}

/* ---------- 侧栏 ---------- */
.article-side{display:flex;flex-direction:column;gap:20px}
@media (min-width:1024px){.article-side{position:sticky;top:96px}}
.side-card{
  position:relative;background:var(--glass);border:1px solid var(--line);border-radius:var(--r-md);
  padding:20px;box-shadow:var(--shadow-1);
}
.side-card::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;border-radius:var(--r-md) var(--r-md) 0 0;background:linear-gradient(90deg,rgba(31,224,138,.45),rgba(31,224,138,0))}
.side-title{font-size:14px;font-weight:600;color:var(--text);letter-spacing:.04em;margin-bottom:14px}
.side-list li{display:flex;align-items:flex-start;gap:10px;padding:9px 0;border-bottom:1px dashed rgba(255,255,255,.08);font-size:14px;color:var(--muted)}
.side-list li:last-child{border-bottom:0}
.side-list .tick{flex:0 0 auto;margin-top:8px;width:6px;height:6px;border-radius:2px;background:var(--primary);box-shadow:0 0 10px rgba(31,224,138,.7)}
.side-note{font-size:13.5px;color:var(--muted);line-height:1.85}
.side-stat{display:flex;align-items:baseline;gap:8px;margin-bottom:6px}
.side-stat b{font-family:var(--num);font-size:28px;letter-spacing:.03em;color:var(--primary);font-weight:600}
.side-stat span{font-size:13.5px;color:var(--muted)}
.side-actions{display:flex;flex-direction:column;gap:10px;margin-top:16px}

/* ---------- 相关推荐 ---------- */
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:26px}
.section-head h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;letter-spacing:-.01em}
.section-head p{color:var(--muted);font-size:15px;max-width:620px}
.rec-grid{display:grid;grid-template-columns:1fr;gap:22px}
@media (min-width:768px){.rec-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.rec-grid{grid-template-columns:repeat(3,1fr)}}
.rec-card{
  display:flex;flex-direction:column;overflow:hidden;border-radius:var(--r-md);
  background:var(--panel);border:1px solid var(--line);box-shadow:var(--shadow-1);
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.rec-card:hover{transform:translateY(-4px);border-color:rgba(31,224,138,.3);box-shadow:var(--shadow-2),0 0 0 1px rgba(31,224,138,.18)}
.rec-thumb{overflow:hidden;aspect-ratio:16/10;background:#0A121B}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.rec-card:hover .rec-thumb img{transform:scale(1.03)}
.rec-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px}
.rec-body h3{font-size:17.5px;font-weight:600;line-height:1.5}
.rec-body p{font-size:14px;color:var(--muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.text-link{color:var(--primary);font-size:14px;font-weight:600;border-bottom:1px solid rgba(31,224,138,.45);align-self:flex-start;padding-bottom:1px;transition:color .2s ease,border-color .2s ease}
.text-link:hover{color:#7CF3BB;border-color:#7CF3BB}

/* ---------- 底部 CTA ---------- */
.cta-block{
  position:relative;overflow:hidden;border-radius:var(--r-lg);border:1px solid var(--line);
  padding:44px 24px;text-align:center;
  background-image:linear-gradient(180deg,rgba(7,11,18,.58),rgba(7,11,18,.92)),url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;box-shadow:var(--shadow-2);
}
@media (min-width:768px){.cta-block{padding:62px 48px}}
.cta-block h2{font-size:clamp(22px,2.8vw,32px);font-weight:700;margin-bottom:14px}
.cta-block p{color:#C1CDD9;max-width:640px;margin:0 auto 26px;font-size:15.5px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}

/* ---------- 页脚 ---------- */
.c-footer{margin-top:56px;border-top:1px solid var(--line);background:#050810}
.footer-grid{display:grid;grid-template-columns:1fr;gap:28px;padding:48px 0 34px}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr}}
.footer-desc{color:var(--muted);font-size:14px;line-height:1.85;margin:16px 0 14px;max-width:340px}
.footer-contact li{color:#B9C6D4;font-size:14px;line-height:2}
.footer-contact .k{color:var(--muted);margin-right:6px}
.footer-h{font-size:14px;font-weight:600;color:var(--text);letter-spacing:.05em;margin-bottom:14px}
.footer-links li{margin-bottom:10px}
.footer-links a{color:var(--muted);font-size:14px;transition:color .2s ease,padding-left .2s ease}
.footer-links a:hover{color:var(--primary);padding-left:3px}
.footer-plain li{color:var(--muted);font-size:14px;margin-bottom:10px}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
  padding:18px 0 24px;border-top:1px solid rgba(255,255,255,.08);color:var(--muted);font-size:13px;
}

/* ---------- 移动端底部转化条 ---------- */
.mobile-convert{
  position:fixed;left:0;right:0;bottom:0;z-index:70;display:none;gap:10px;align-items:center;
  padding:10px 16px;background:rgba(7,11,18,.9);backdrop-filter:blur(12px);
  border-top:1px solid rgba(31,224,138,.2);
}
.mobile-convert .btn{flex:1}
@media (max-width:767px){
  .mobile-convert{display:flex}
  body{padding-bottom:76px}
}

/* roulang page: category2 */
:root{
  --bg:#070B12;
  --panel:#0D1621;
  --glass:rgba(255,255,255,.045);
  --line:rgba(255,255,255,.10);
  --primary:#1FE08A;
  --primary-600:#10B472;
  --accent:#FF7A29;
  --info:#4CC9F0;
  --text:#E8EEF5;
  --muted:#97A6B8;
  --shadow-1:0 12px 32px -16px rgba(0,0,0,.7);
  --shadow-2:0 22px 50px -20px rgba(0,0,0,.85);
}
*,*::before,*::after{box-sizing:border-box;}
html{font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;font-size:16px;line-height:1.8;background:var(--bg);color-scheme:dark;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden;}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}

.container{width:100%;max-width:1240px !important;margin:0 auto;padding-left:20px;padding-right:20px;}
@media(min-width:768px){.container{padding-left:32px;padding-right:32px;}}

.num{font-family:"Barlow Condensed",system-ui,sans-serif;font-weight:600;letter-spacing:.04em;font-variant-numeric:tabular-nums;}

/* ============ 顶部导航 ============ */
.c-header{
  position:sticky;top:0;z-index:70;
  background:linear-gradient(180deg,rgba(7,11,18,.94),rgba(7,11,18,.62));
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.c-header.is-scrolled{
  background:rgba(7,11,18,.88);
  border-bottom-color:var(--line);
  box-shadow:0 14px 34px -24px rgba(0,0,0,.95);
}
.nav-desktop{display:none;}
.mobile-bar{display:flex;align-items:center;justify-content:space-between;height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:700;letter-spacing:-.01em;color:#fff;white-space:nowrap;}
.brand-mark{
  width:11px;height:11px;border-radius:3px;
  background:linear-gradient(135deg,var(--primary),var(--info));
  transform:rotate(45deg);
  box-shadow:0 0 0 4px rgba(31,224,138,.12);
  flex:0 0 auto;
}
.nav-left,.nav-right{display:flex;align-items:center;gap:18px;}
.nav-link{
  position:relative;display:inline-block;padding:6px 2px;
  font-size:14px;color:var(--muted);white-space:nowrap;
  transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--primary-600));
  transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:#fff;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  padding:9px 18px;border-radius:12px;font-size:14px;font-weight:600;
  color:var(--primary);border:1px solid rgba(31,224,138,.4);
  background:rgba(31,224,138,.06);white-space:nowrap;
  transition:all .22s ease;
}
.nav-cta:hover{background:rgba(31,224,138,.14);border-color:var(--primary);transform:translateY(-1px);}
.nav-cta:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
@media(min-width:1024px){
  .nav-desktop{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px;}
  .mobile-bar{display:none;}
}
.burger{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);display:inline-flex;flex-direction:column;
  align-items:center;justify-content:center;gap:5px;cursor:pointer;
  transition:border-color .2s ease,background .2s ease;
}
.burger:hover{border-color:rgba(31,224,138,.4);}
.burger:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.burger span{width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform .25s ease,opacity .25s ease;}
.burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.burger.is-open span:nth-child(2){opacity:0;}
.burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

.mobile-drawer{
  position:fixed;left:0;right:0;top:0;z-index:80;
  padding:20px 20px 28px;
  background:linear-gradient(180deg,#0A121C 0%,#070B12 72%);
  border-bottom:1px solid var(--line);
  transform:translateY(-104%);
  transition:transform .34s cubic-bezier(.4,0,.2,1);
  max-height:100vh;overflow-y:auto;
  box-shadow:0 30px 60px -30px rgba(0,0,0,.95);
}
.mobile-drawer.is-open{transform:translateY(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid rgba(255,255,255,.08);}
.drawer-link{
  display:flex;align-items:center;height:56px;
  border-bottom:1px solid rgba(255,255,255,.08);
  font-size:16px;color:var(--text);transition:color .2s ease,padding-left .2s ease;
}
.drawer-link:hover,.drawer-link.is-active{color:var(--primary);padding-left:4px;}
.drawer-cta{display:flex;flex-direction:column;gap:12px;margin-top:22px;}
.drawer-note{margin-top:18px;font-size:13px;color:var(--muted);line-height:1.7;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:12px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,filter .2s ease;
}
.btn-primary{
  background:var(--primary);color:#04140C;
  box-shadow:0 10px 30px -8px rgba(31,224,138,.55);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 16px 38px -10px rgba(31,224,138,.62);}
.btn-primary:active{transform:translateY(0);filter:brightness(.98);}
.btn-primary:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.btn-primary:disabled{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none;}
.btn-ghost{
  background:rgba(255,255,255,.04);border-color:rgba(255,255,255,.18);color:var(--text);
}
.btn-ghost:hover{border-color:rgba(31,224,138,.42);background:rgba(31,224,138,.07);transform:translateY(-1px);}
.btn-ghost:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.btn-block{width:100%;}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.link-underline{
  color:var(--primary);
  border-bottom:1px solid rgba(31,224,138,.5);
  padding-bottom:1px;font-weight:600;font-size:15px;
  transition:border-color .2s ease,color .2s ease;
}
.link-underline:hover{border-bottom-color:var(--primary);color:#fff;}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  font-size:13px;letter-spacing:.04em;
  background:rgba(31,224,138,.10);border:1px solid rgba(31,224,138,.28);color:var(--primary);
}
.badge-amber{background:rgba(255,122,41,.10);border-color:rgba(255,122,41,.30);color:var(--accent);}
.badge-info{background:rgba(76,201,240,.10);border-color:rgba(76,201,240,.30);color:var(--info);}
.badge-dot{width:6px;height:6px;border-radius:999px;background:currentColor;flex:0 0 auto;}

/* ============ Hero ============ */
.page-hero{position:relative;overflow:hidden;display:flex;align-items:center;min-height:520px;padding:64px 0;}
.page-hero .hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.page-hero .hero-mask{
  position:absolute;inset:0;
  background:linear-gradient(104deg,rgba(7,11,18,.55) 0%,rgba(7,11,18,.90) 62%,rgba(7,11,18,.96) 100%);
}
.page-hero .hero-dots{
  position:absolute;inset:0;opacity:.05;
  background-image:radial-gradient(rgba(255,255,255,.6) 1px,transparent 1px);
  background-size:22px 22px;
}
.page-hero .hero-inner{position:relative;z-index:1;width:100%;}
.crumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);margin-bottom:22px;flex-wrap:wrap;}
.crumb a{transition:color .2s ease;}
.crumb a:hover{color:var(--primary);}
.crumb span.sep{color:rgba(151,166,184,.55);}
.crumb .current{color:var(--text);}
.hero-title{
  font-size:clamp(30px,4.6vw,54px);font-weight:700;letter-spacing:-.02em;
  line-height:1.16;color:#fff;max-width:820px;margin-top:18px;
}
.hero-sub{
  margin-top:18px;max-width:640px;
  font-size:17px;line-height:1.85;color:var(--muted);
}
.stat-strip{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:14px;margin-top:38px;max-width:660px;
  border-top:1px solid rgba(255,255,255,.10);padding-top:22px;
}
.stat-strip .stat-num{font-size:clamp(22px,3vw,30px);color:#fff;line-height:1.2;}
.stat-strip .stat-num em{font-style:normal;color:var(--primary);}
.stat-strip .stat-label{font-size:13px;color:var(--muted);margin-top:4px;line-height:1.6;}

/* ============ 板块通用 ============ */
.section{padding:64px 0;}
@media(min-width:768px){.section{padding:88px 0;}}
.section-alt{background:linear-gradient(180deg,rgba(255,255,255,.018),rgba(255,255,255,0));border-top:1px solid rgba(255,255,255,.06);border-bottom:1px solid rgba(255,255,255,.06);}
.eyebrow{display:inline-block;font-size:12px;letter-spacing:.14em;color:var(--primary);margin-bottom:12px;font-family:"Barlow Condensed",system-ui,sans-serif;font-weight:600;}
.sec-h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;letter-spacing:-.01em;color:#fff;line-height:1.32;}
.sec-h3{font-size:19px;font-weight:600;color:#fff;line-height:1.5;}
.sec-lead{margin-top:14px;font-size:16px;color:var(--muted);line-height:1.85;max-width:820px;}
.t-p{font-size:16px;line-height:1.88;color:var(--muted);margin-bottom:16px;}
.t-p strong{color:var(--text);font-weight:600;}
.block + .block{margin-top:56px;}

/* ============ 图文卡 / 配图 ============ */
.figure{
  border-radius:16px;overflow:hidden;border:1px solid var(--line);
  background:var(--panel);box-shadow:var(--shadow-1);
}
.figure img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .4s ease;}
.figure:hover img{transform:scale(1.03);}
.figure figcaption{padding:12px 16px;font-size:13px;color:var(--muted);border-top:1px solid rgba(255,255,255,.06);}

.dot-list{display:grid;gap:10px;margin:6px 0 0;}
.dot-list li{position:relative;padding-left:20px;font-size:15px;line-height:1.75;color:var(--muted);}
.dot-list li::before{
  content:"";position:absolute;left:0;top:.62em;
  width:8px;height:8px;border-radius:2px;
  background:linear-gradient(135deg,var(--primary),var(--info));
  transform:rotate(45deg);
}

/* ============ 条带卡 ============ */
.stripe{
  position:relative;padding:22px 24px 22px 28px;
  background:var(--glass);border:1px solid var(--line);border-radius:16px;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease,background .25s ease;
}
.stripe::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:4px;border-radius:0 4px 4px 0;
  background:linear-gradient(180deg,var(--primary),var(--primary-600));
}
.stripe:hover{transform:translateY(-3px);border-color:rgba(31,224,138,.3);box-shadow:var(--shadow-2);background:rgba(255,255,255,.06);}
.stripe .stripe-idx{font-family:"Barlow Condensed",system-ui,sans-serif;font-size:14px;letter-spacing:.12em;color:var(--accent);}
.stripe .stripe-title{font-size:18px;font-weight:600;color:#fff;margin-top:6px;}
.stripe .stripe-desc{margin-top:8px;font-size:14px;line-height:1.8;color:var(--muted);}

/* ============ 数据表 ============ */
.table-shell{border:1px solid var(--line);border-radius:16px;background:var(--panel);box-shadow:var(--shadow-1);overflow:hidden;}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;}
table.data-table{width:100%;min-width:680px;border-collapse:collapse;font-size:15px;}
.data-table th{
  text-align:left;padding:14px 16px;font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--muted);background:rgba(255,255,255,.05);
  border-bottom:1px solid var(--line);white-space:nowrap;
}
.data-table td{padding:15px 16px;border-bottom:1px solid rgba(255,255,255,.06);color:var(--muted);vertical-align:top;line-height:1.7;}
.data-table td:first-child{color:var(--text);font-weight:600;white-space:nowrap;}
.data-table tbody tr:nth-child(odd){background:rgba(255,255,255,.022);}
.data-table tbody tr{transition:background .2s ease;}
.data-table tbody tr:hover{background:rgba(31,224,138,.07);}
.data-table tbody tr:last-child td{border-bottom:none;}
.table-hint{margin-top:12px;font-size:13px;color:var(--muted);}

/* ============ 侧栏咨询卡 ============ */
.side-card{
  background:linear-gradient(180deg,#101B27,#0C141E);
  border:1px solid var(--line);border-radius:20px;
  box-shadow:var(--shadow-1);position:relative;overflow:hidden;
}
.side-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(31,224,138,.55),rgba(31,224,138,0));
}
.side-card-head{padding:24px 24px 0;}
.side-card-body{padding:18px 24px 24px;}
.side-card h3{font-size:18px;font-weight:600;color:#fff;}
.side-card .side-desc{margin-top:8px;font-size:14px;line-height:1.8;color:var(--muted);}
.side-meta{margin-top:16px;padding-top:16px;border-top:1px solid rgba(255,255,255,.08);display:grid;gap:8px;}
.side-meta li{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);}
.side-meta .tick{width:14px;height:14px;border-radius:50%;background:rgba(31,224,138,.14);border:1px solid rgba(31,224,138,.4);position:relative;flex:0 0 auto;}
.side-meta .tick::after{content:"";position:absolute;left:4px;top:3.5px;width:4px;height:8px;border-right:1.6px solid var(--primary);border-bottom:1.6px solid var(--primary);transform:rotate(40deg);}
@media(min-width:1024px){
  .sticky-wrap{position:sticky;top:96px;}
}

/* ============ 表单 ============ */
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;color:var(--muted);margin-bottom:8px;letter-spacing:.02em;}
.field .req{color:var(--accent);margin-left:4px;}
.input,.select,.textarea{
  width:100%;background:rgba(255,255,255,.04);
  border:1px solid var(--line);border-radius:12px;
  padding:12px 14px;font-size:15px;color:var(--text);
  outline:none;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.input::placeholder,.textarea::placeholder{color:rgba(151,166,184,.62);}
.input:hover,.select:hover,.textarea:hover{border-color:rgba(255,255,255,.2);}
.input:focus,.select:focus,.textarea:focus{
  border-color:var(--primary);background:rgba(31,224,138,.05);
  box-shadow:0 0 0 4px rgba(31,224,138,.16);
}
.textarea{min-height:96px;resize:vertical;}
.select{
  appearance:none;-webkit-appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2397A6B8' stroke-width='1.6' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;padding-right:38px;
}
.select option{background:#0D1621;color:#E8EEF5;}
.form-note{margin-top:12px;font-size:12px;color:var(--muted);line-height:1.7;}
.form-alert{
  display:none;margin-top:14px;padding:12px 14px;border-radius:12px;
  font-size:14px;line-height:1.7;
  background:rgba(31,224,138,.08);border:1px solid rgba(31,224,138,.34);color:var(--primary);
}
.form-alert.is-visible{display:block;}

/* ============ FAQ ============ */
.faq{
  border:1px solid var(--line);border-radius:16px;background:var(--glass);
  margin-bottom:14px;overflow:hidden;
  transition:border-color .25s ease,background .25s ease;
}
.faq[open]{border-color:rgba(31,224,138,.3);background:rgba(31,224,138,.045);}
.faq summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:16px;
  padding:18px 20px;min-height:52px;
}
.faq summary::-webkit-details-marker{display:none;}
.faq .q-num{font-family:"Barlow Condensed",system-ui,sans-serif;font-weight:600;font-size:18px;letter-spacing:.08em;color:var(--primary);min-width:30px;}
.faq .q-text{flex:1;font-size:17px;font-weight:600;color:#fff;line-height:1.6;}
.faq .chev{width:20px;height:20px;flex:0 0 auto;color:var(--muted);transition:transform .25s ease,color .25s ease;}
.faq[open] .chev{transform:rotate(180deg);color:var(--primary);}
.faq .a-body{padding:0 20px 20px 66px;font-size:15px;line-height:1.85;color:var(--muted);}
@media(max-width:767px){
  .faq .a-body{padding-left:20px;}
  .faq .q-text{font-size:16px;}
}

/* ============ 底部 CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:24px;
  border:1px solid var(--line);padding:64px 24px;text-align:center;
}
.cta-band .cta-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
}
.cta-band .cta-mask{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,18,.55),rgba(7,11,18,.93));
}
.cta-inner{position:relative;z-index:1;}
.cta-inner h2{font-size:clamp(24px,3.4vw,38px);font-weight:700;letter-spacing:-.01em;color:#fff;line-height:1.28;}
.cta-inner p{margin:16px auto 0;max-width:620px;font-size:16px;line-height:1.85;color:var(--muted);}
.cta-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:14px;margin-top:30px;}
@media(max-width:639px){
  .cta-actions{flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .btn-row{flex-direction:column;}
  .btn-row .btn{width:100%;}
  .stat-strip{grid-template-columns:1fr;gap:16px;}
}

/* ============ 页脚 ============ */
.site-footer{border-top:1px solid var(--line);background:#080D15;padding-top:56px;margin-top:80px;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media(min-width:640px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}}
.footer-title{font-size:14px;font-weight:700;color:#fff;letter-spacing:.04em;margin-bottom:16px;}
.footer-link{display:block;font-size:14px;color:var(--muted);padding:5px 0;transition:color .2s ease,transform .2s ease;}
.footer-link:hover{color:var(--primary);transform:translateX(2px);}
.footer-text{font-size:14px;line-height:1.85;color:var(--muted);}
.footer-plain{display:block;font-size:14px;color:var(--muted);padding:5px 0;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-bottom{
  margin-top:44px;border-top:1px solid var(--line);padding:18px 0 26px;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13px;color:var(--muted);
}
.footer-bottom a{color:var(--muted);transition:color .2s ease;}
.footer-bottom a:hover{color:var(--primary);}

/* ============ 移动端固定转化条 ============ */
.mobile-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:60;
  display:flex;gap:10px;padding:8px 14px;height:64px;
  background:rgba(7,11,18,.92);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-top:1px solid rgba(31,224,138,.22);
}
.mobile-cta .btn{flex:1;padding:10px 12px;font-size:14px;border-radius:10px;}
@media(min-width:768px){.mobile-cta{display:none;}}
@media(max-width:767px){body{padding-bottom:76px;}}

/* roulang page: category3 */
:root{
  --bg:#070B12;
  --panel:#0D1621;
  --panel-2:#101C29;
  --glass:rgba(255,255,255,.045);
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);
  --primary:#1FE08A;
  --primary-600:#10B472;
  --accent:#FF7A29;
  --info:#4CC9F0;
  --text:#E8EEF5;
  --muted:#97A6B8;
  --radius-xl:20px;
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 12px 32px -16px rgba(0,0,0,.7);
  --shadow-lg:0 22px 50px -20px rgba(0,0,0,.85);
  --font-body:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  --font-num:"Barlow Condensed","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
.site-body{
  margin:0;padding:0 0 84px;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
.site-body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:radial-gradient(rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:26px 26px;opacity:.5;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
.num{font-family:var(--font-num);letter-spacing:.06em;font-weight:600}
.container{width:100%;max-width:var(--container);margin:0 auto;padding-left:20px;padding-right:20px;position:relative;z-index:1}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}

/* ---------- header ---------- */
.c-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,11,18,.72);
  border-bottom:1px solid var(--line-soft);
  transition:background .3s ease,backdrop-filter .3s ease,box-shadow .3s ease;
}
.c-header.is-scrolled{
  background:rgba(7,11,18,.88);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  box-shadow:0 10px 30px -22px rgba(0,0,0,.9);
}
.nav-desktop{display:flex;align-items:center;justify-content:space-between;height:72px;gap:18px}
.nav-left,.nav-right{display:flex;align-items:center;gap:6px;flex:1}
.nav-right{justify-content:flex-end}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 12px;
  font-size:14.5px;color:var(--muted);border-radius:10px;white-space:nowrap;
  transition:color .22s ease,background .22s ease;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-14px;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.nav-link:hover{color:var(--text);background:var(--glass)}
.nav-link.is-active{color:var(--text);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.brand{
  display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;
  font-size:18px;font-weight:700;letter-spacing:.02em;color:var(--text);
}
.brand-mark{
  width:26px;height:26px;border-radius:9px;flex:0 0 auto;
  background:
    linear-gradient(135deg,var(--primary) 0%,var(--primary-600) 55%,rgba(31,224,138,.25) 100%);
  box-shadow:0 0 0 1px rgba(31,224,138,.35),0 8px 20px -10px rgba(31,224,138,.7);
  position:relative;
}
.brand-mark::after{
  content:"";position:absolute;left:7px;top:6px;width:12px;height:12px;border-radius:3px;
  border:2px solid rgba(4,20,12,.75);border-right-color:transparent;border-bottom-color:transparent;
  transform:rotate(45deg);
}
.nav-cta{
  display:inline-flex;align-items:center;height:38px;padding:0 16px;margin-left:8px;
  font-size:14px;font-weight:600;color:var(--primary);
  border:1px solid rgba(31,224,138,.45);border-radius:var(--radius-sm);
  background:rgba(31,224,138,.06);
  transition:background .22s ease,border-color .22s ease,transform .22s ease,color .22s ease;
}
.nav-cta:hover{background:rgba(31,224,138,.14);border-color:var(--primary);transform:translateY(-1px)}
.nav-cta:active{transform:translateY(1px)}
.mobile-bar{display:none;align-items:center;justify-content:space-between;height:64px}
.burger{
  width:44px;height:44px;display:inline-flex;flex-direction:column;justify-content:center;
  align-items:center;gap:5px;background:var(--glass);border:1px solid var(--line);
  border-radius:var(--radius-sm);cursor:pointer;transition:border-color .2s ease,background .2s ease;
}
.burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform .25s ease,opacity .25s ease}
.burger:hover{border-color:rgba(31,224,138,.45);background:rgba(31,224,138,.08)}
.burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.is-open span:nth-child(2){opacity:0}
.burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-drawer{
  position:fixed;left:0;right:0;top:0;z-index:70;
  background:rgba(9,14,21,.98);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transform:translateY(-102%);transition:transform .32s cubic-bezier(.4,0,.2,1);
  padding:14px 0 22px;
}
.mobile-drawer.is-open{transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:56px}
.drawer-close{
  width:40px;height:40px;border-radius:10px;background:var(--glass);border:1px solid var(--line);
  color:var(--text);font-size:20px;line-height:1;cursor:pointer;
}
.drawer-link{
  display:flex;align-items:center;min-height:56px;padding:0 4px;
  font-size:16px;color:var(--muted);
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:color .2s ease,padding-left .2s ease;
}
.drawer-link:hover,.drawer-link.is-active{color:var(--primary);padding-left:8px}
.drawer-cta{
  margin-top:18px;display:flex;align-items:center;justify-content:center;
  height:48px;border-radius:var(--radius-sm);font-weight:600;color:#04140C;
  background:var(--primary);box-shadow:0 10px 30px -8px rgba(31,224,138,.55);
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 22px;border-radius:var(--radius-sm);
  font-size:15.5px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,color .25s ease,filter .2s ease;
}
.btn-primary{background:var(--primary);color:#04140C;box-shadow:0 10px 30px -8px rgba(31,224,138,.55)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 16px 38px -10px rgba(31,224,138,.7)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 18px -8px rgba(31,224,138,.5)}
.btn-ghost{background:transparent;color:var(--text);border-color:rgba(255,255,255,.18)}
.btn-ghost:hover{border-color:rgba(31,224,138,.4);background:rgba(31,224,138,.07);color:var(--primary)}
.btn-ghost:active{transform:translateY(1px)}
.btn-block{width:100%}
.link-underline{
  color:var(--primary);text-decoration:underline;text-underline-offset:5px;
  text-decoration-color:rgba(31,224,138,.45);transition:text-decoration-color .2s ease,color .2s ease;
}
.link-underline:hover{text-decoration-color:var(--primary);color:#5bf0ad}

/* ---------- hero ---------- */
.hero{
  position:relative;isolation:isolate;
  min-height:560px;display:flex;align-items:center;
  padding:60px 0 66px;
  border-bottom:1px solid var(--line-soft);
}
.hero-media{
  position:absolute;inset:0;z-index:-1;overflow:hidden;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,18,.55) 0%,rgba(7,11,18,.88) 62%,rgba(7,11,18,.96) 100%);
}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:32px;align-items:center;width:100%}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);margin-bottom:20px}
.breadcrumb a{color:var(--muted);transition:color .2s ease}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:rgba(255,255,255,.25)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;
  border-radius:999px;font-size:13px;letter-spacing:.04em;
  color:var(--primary);background:rgba(31,224,138,.09);border:1px solid rgba(31,224,138,.28);
}
.hero h1{
  font-size:clamp(30px,4.6vw,58px);line-height:1.14;font-weight:700;letter-spacing:-.02em;
  margin:20px 0 18px;
}
.hero h1 em{font-style:normal;color:var(--primary)}
.hero-sub{font-size:17px;color:var(--muted);max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.trust-row{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px}
.trust-item{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:var(--muted)}
.trust-item .dot{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 4px rgba(31,224,138,.14)}
.stat-card{
  position:relative;background:linear-gradient(180deg,var(--panel-2),var(--panel));
  border:1px solid var(--line);border-radius:var(--radius-xl);
  padding:26px 24px;box-shadow:var(--shadow);overflow:hidden;
}
.stat-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,rgba(31,224,138,.45),rgba(31,224,138,0));
}
.stat-list{display:grid;gap:16px}
.stat-row{display:flex;align-items:baseline;justify-content:space-between;gap:14px;padding-bottom:14px;border-bottom:1px dashed var(--line)}
.stat-row:last-child{border-bottom:0;padding-bottom:0}
.stat-label{font-size:14px;color:var(--muted)}
.stat-value{font-size:30px;line-height:1;color:var(--primary)}
.stat-value small{font-size:13px;color:var(--muted);margin-left:4px;letter-spacing:0}
.stat-thumb{
  margin-top:20px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);
  aspect-ratio:16/10;
}
.stat-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.stat-thumb:hover img{transform:scale(1.03)}
.progress{height:6px;border-radius:999px;background:rgba(255,255,255,.08);margin-top:16px;overflow:hidden}
.progress i{display:block;height:100%;width:62%;border-radius:999px;background:linear-gradient(90deg,var(--primary),var(--primary-600))}

/* ---------- sections ---------- */
.section{padding:76px 0;border-bottom:1px solid var(--line-soft);position:relative;z-index:1}
.section.alt{background:linear-gradient(180deg,rgba(255,255,255,.016),rgba(255,255,255,0))}
.section-head{max-width:820px;margin-bottom:38px}
.sec-tag{
  display:inline-block;font-size:12.5px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--accent);margin-bottom:12px;
}
.sec-title{font-size:clamp(22px,2.6vw,34px);line-height:1.3;font-weight:700;letter-spacing:-.01em}
.sec-sub{margin-top:14px;color:var(--muted);font-size:15.5px}

/* ---------- timeline ---------- */
.timeline{position:relative;padding-left:0}
.timeline::before{
  content:"";position:absolute;left:26px;top:10px;bottom:26px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,rgba(31,224,138,.55),rgba(31,224,138,.05));
}
.tl-item{position:relative;padding:0 0 30px 78px}
.tl-item:last-child{padding-bottom:0}
.tl-dot{
  position:absolute;left:10px;top:0;width:34px;height:34px;border-radius:50%;
  display:grid;place-items:center;font-family:var(--font-num);font-size:15px;font-weight:700;
  color:var(--primary);background:var(--panel);border:1px solid rgba(31,224,138,.4);
  box-shadow:0 0 0 6px rgba(31,224,138,.07);
}
.tl-body{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px 22px;box-shadow:var(--shadow);transition:border-color .25s ease,transform .25s ease,box-shadow .3s ease;
}
.tl-body:hover{border-color:rgba(31,224,138,.35);transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.tl-body h3{font-size:18.5px;font-weight:600;margin-bottom:8px}
.tl-body p{color:var(--muted);font-size:15px}
.tl-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.chip{
  display:inline-flex;align-items:center;height:26px;padding:0 11px;border-radius:999px;
  font-size:12.5px;color:var(--muted);background:rgba(255,255,255,.05);border:1px solid var(--line);
}
.chip.hot{color:var(--accent);border-color:rgba(255,122,41,.35);background:rgba(255,122,41,.08)}

/* ---------- split ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center}
.split + .split{margin-top:56px}
.split.reverse .split-media{order:2}
.media-frame{
  border-radius:var(--radius-xl);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow);aspect-ratio:4/3;background:var(--panel);
}
.media-frame img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.media-frame:hover img{transform:scale(1.03)}
.split-body h3{font-size:20px;font-weight:600;margin:14px 0 12px}
.split-body p{color:var(--muted);font-size:15.5px}
.step-no{
  font-family:var(--font-num);font-size:15px;font-weight:700;color:var(--primary);
  letter-spacing:.14em;
}
.plain-list{margin-top:18px;display:grid;gap:12px}
.plain-list li{position:relative;padding-left:20px;color:var(--muted);font-size:15px}
.plain-list li::before{
  content:"";position:absolute;left:2px;top:11px;width:7px;height:7px;
  background:var(--primary);transform:rotate(45deg);border-radius:1px;opacity:.85;
}
.plain-list li b{color:var(--text);font-weight:600}

/* ---------- strip cards ---------- */
.strips{display:grid;gap:18px}
.strip-card{
  position:relative;padding:22px 24px 22px 30px;
  background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02));
  border:1px solid var(--line);border-radius:var(--radius);
  transition:border-color .25s ease,transform .25s ease,background .25s ease;
}
.strip-card::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--primary),rgba(31,224,138,.15));
}
.strip-card:hover{border-color:rgba(31,224,138,.35);transform:translateX(4px)}
.strip-head{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.strip-head .no{font-family:var(--font-num);font-size:20px;color:var(--accent)}
.strip-head h3{font-size:18px;font-weight:600}
.strip-card p{margin-top:10px;color:var(--muted);font-size:15px}
.strip-card.wide{padding:26px 28px 26px 32px}
.strip-card.wide p{max-width:820px}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:14px}
.faq-item{
  position:relative;background:var(--glass);border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;transition:border-color .25s ease,background .25s ease;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:transparent;transition:background .25s ease;
}
.faq-item.is-open{border-color:rgba(31,224,138,.35);background:rgba(31,224,138,.045)}
.faq-item.is-open::before{background:var(--primary)}
.faq-q{
  display:flex;align-items:center;gap:16px;width:100%;min-height:60px;
  padding:18px 22px;background:transparent;border:0;text-align:left;cursor:pointer;
}
.faq-index{font-family:var(--font-num);font-size:19px;color:var(--muted);min-width:30px;transition:color .25s ease}
.faq-q h3{font-size:17px;font-weight:600;color:var(--text);flex:1;line-height:1.6}
.faq-arrow{
  width:22px;height:22px;flex:0 0 auto;position:relative;transition:transform .25s ease;
}
.faq-arrow::before,.faq-arrow::after{
  content:"";position:absolute;top:10px;width:9px;height:2px;border-radius:2px;background:var(--muted);
  transition:background .25s ease;
}
.faq-arrow::before{left:3px;transform:rotate(45deg)}
.faq-arrow::after{left:10px;transform:rotate(-45deg)}
.faq-item.is-open .faq-arrow{transform:rotate(180deg)}
.faq-item.is-open .faq-arrow::before,.faq-item.is-open .faq-arrow::after{background:var(--primary)}
.faq-item.is-open .faq-index{color:var(--primary)}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .3s ease;
}
.faq-a p{padding:0 22px 20px 68px;color:var(--muted);font-size:15px;line-height:1.8}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;isolation:isolate;padding:78px 0;text-align:center;
  border-bottom:1px solid var(--line-soft);
}
.cta-band .media{
  position:absolute;inset:0;z-index:-1;
  background-image:url("/assets/images/backpic/back-3.png");
  background-size:cover;background-position:center;
}
.cta-band .media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,18,.86),rgba(7,11,18,.94));
}
.cta-band h2{font-size:clamp(24px,3vw,36px);font-weight:700;line-height:1.3}
.cta-band p{margin:14px auto 0;max-width:700px;color:var(--muted);font-size:15.5px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:30px}
.cta-note{margin-top:18px;font-size:13.5px;color:var(--muted)}

/* ---------- footer ---------- */
.site-footer{background:#060A11;border-top:1px solid var(--line);padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700}
.footer-desc{margin-top:16px;color:var(--muted);font-size:14.5px;max-width:330px}
.footer-quote{
  margin-top:18px;padding:14px 16px;border-radius:var(--radius-sm);
  background:var(--glass);border:1px solid var(--line);font-size:13.5px;color:var(--muted);
}
.footer-quote span{
  display:inline-grid;place-items:center;width:26px;height:26px;border-radius:50%;
  background:rgba(31,224,138,.14);color:var(--primary);font-size:13px;margin-right:8px;
}
.footer-title{font-size:14px;font-weight:600;letter-spacing:.06em;color:var(--text);margin-bottom:16px}
.footer-link{display:block;padding:7px 0;font-size:14.5px;color:var(--muted);transition:color .2s ease,transform .2s ease}
.footer-link:hover{color:var(--primary);transform:translateX(3px)}
.footer-info{font-size:14.5px;color:var(--muted);padding:7px 0}
.footer-bottom{
  margin-top:48px;border-top:1px solid var(--line-soft);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:var(--muted);
}
.footer-bottom a{color:var(--muted);transition:color .2s ease}
.footer-bottom a:hover{color:var(--primary)}

/* ---------- mobile cta ---------- */
.mobile-cta{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:80;
  height:64px;padding:8px 14px;gap:10px;
  background:rgba(9,14,21,.92);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-top:1px solid rgba(31,224,138,.24);
}
.mobile-cta .btn{height:48px;font-size:14.5px;padding:0 14px;flex:1}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .nav-desktop{display:none}
  .mobile-bar{display:flex}
  .hero{min-height:auto;padding:42px 0 52px}
  .hero-grid{grid-template-columns:1fr;gap:30px}
  .split{grid-template-columns:1fr;gap:24px}
  .split.reverse .split-media{order:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .section{padding:60px 0}
}
@media (max-width:767px){
  .site-body{padding-bottom:96px}
  .mobile-cta{display:flex}
  .timeline::before{left:20px}
  .tl-item{padding-left:60px}
  .tl-dot{left:4px;width:32px;height:32px;font-size:14px}
  .faq-a p{padding:0 18px 20px 18px}
  .faq-q{padding:16px 18px}
  .faq-index{min-width:24px;font-size:17px}
  .strip-card{padding:20px 18px 20px 24px}
  .footer-grid{grid-template-columns:1fr}
  .cta-band{padding:60px 0}
  .cta-actions .btn{width:100%}
}
@media (max-width:520px){
  .container{padding-left:16px;padding-right:16px}
  .hero h1{font-size:29px}
  .hero-sub{font-size:15.5px}
  .sec-title{font-size:22px}
  .hero-actions .btn{width:100%}
  .stat-card{padding:22px 18px}
  .stat-value{font-size:26px}
}