/* roulang page: index */
:root{
  --bg:#0B0D0E;
  --panel:#14181A;
  --float:#1D2225;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.18);
  --primary:#12C79A;
  --primary-dim:rgba(18,199,154,.16);
  --accent:#FF6B2C;
  --glow:#C9F55C;
  --paper:#F6F5F1;
  --ink:#1A1D1C;
  --text:#E8EDEA;
  --muted:#93A09B;
  --radius-card:18px;
  --radius-img:14px;
  --radius-btn:999px;
  --radius-input:12px;
  --shadow-dark:0 24px 60px rgba(0,0,0,.45);
  --shadow-light:0 12px 32px rgba(20,24,25,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:240ms;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.9;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
body.drawer-open{overflow:hidden}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color var(--dur) var(--ease)}
button,input{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em;line-height:1.2}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:var(--primary);color:#06231C}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
.num,.sec-no,.rank-no{font-family:"Oswald","Archivo","PingFang SC",sans-serif}
.wrap{width:100%;max-width:1140px;margin:0 auto;padding:0 24px}
@media (min-width:1400px){.wrap{max-width:1320px}}
.sec{padding:120px 0;position:relative}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:46px}
.sec-title{
  font-size:clamp(26px,3vw,40px);font-weight:700;line-height:1.18;
  border-left:4px solid var(--primary);padding-left:18px;
}
.sec-no{
  display:block;font-size:13px;font-weight:500;letter-spacing:.2em;
  color:rgba(255,107,44,.78);line-height:1;margin-bottom:10px;text-transform:uppercase;
}
.sec-more{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;
  color:var(--primary);white-space:nowrap;transition:transform var(--dur) var(--ease),color var(--dur);
}
.sec-more:hover{color:var(--accent);transform:translateX(4px)}
.sec-lead{color:var(--muted);font-size:16px;max-width:720px;margin-top:16px}

/* ---------- Header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1040;height:72px;
  display:flex;align-items:center;
  background:rgba(11,13,14,.42);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid var(--line);
  transition:height .3s var(--ease),background .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.scrolled{
  height:64px;background:rgba(11,13,14,.94);
  box-shadow:0 14px 34px rgba(0,0,0,.45);
}
.nav-row{display:flex;align-items:center;justify-content:space-between;gap:24px;width:100%}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--primary),#0a8f6f);
  color:#04231B;font-family:"Oswald",sans-serif;font-weight:600;font-size:17px;
  box-shadow:0 8px 20px rgba(18,199,154,.28);
}
.brand-text{font-size:19px;font-weight:700;letter-spacing:-.01em;color:#fff;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:30px}
.main-nav a{
  position:relative;font-size:15px;font-weight:500;color:rgba(232,237,234,.76);padding:6px 0;
}
.main-nav a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:100%;
  background:var(--primary);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease);
}
.main-nav a:hover{color:#fff}
.main-nav a:hover::after{transform:scaleX(1)}
.main-nav a.active{color:#fff;font-weight:600}
.main-nav a.active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.icon-btn{
  width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
  background:rgba(255,255,255,.06);border:1px solid var(--line-strong);color:#fff;
  cursor:pointer;transition:all var(--dur) var(--ease);
}
.icon-btn:hover{background:rgba(18,199,154,.18);border-color:rgba(18,199,154,.6);color:var(--primary)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);border:1px solid transparent;cursor:pointer;
  padding:14px 30px;font-size:15px;font-weight:600;line-height:1.2;
  transition:all var(--dur) var(--ease);
}
.btn-sm{padding:10px 22px;font-size:14px}
.btn-primary{background:var(--primary);color:#052A22;box-shadow:0 12px 28px rgba(18,199,154,.22)}
.btn-primary:hover{background:var(--accent);color:#fff;transform:translateY(-2px);box-shadow:0 16px 32px rgba(255,107,44,.28)}
.btn-ghost{
  background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.3);color:#fff;
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);background:rgba(18,199,154,.1)}
.btn-outline{
  border-radius:12px;border-color:var(--line-strong);color:var(--text);background:transparent;
}
.btn-outline:hover{border-color:var(--primary);color:var(--primary)}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none}
.burger{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line-strong);
  background:rgba(255,255,255,.06);display:none;flex-direction:column;justify-content:center;
  align-items:center;gap:5px;cursor:pointer;
}
.burger span{display:block;width:18px;height:2px;background:#fff;border-radius:2px}
@media (max-width:1199px){.main-nav{gap:20px}.main-nav a{font-size:14px}}
@media (max-width:991px){
  .main-nav{display:none}
  .burger{display:flex}
  .nav-cta{display:none}
}
.glass-drawer{
  background:rgba(11,13,14,.94)!important;
  -webkit-backdrop-filter:blur(22px);backdrop-filter:blur(22px);
  border-left:1px solid var(--line)!important;color:var(--text);
  width:min(86vw,380px)!important;
}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:22px 24px;border-bottom:1px solid var(--line)}
.drawer-body{padding:16px 0}
.drawer-nav a{
  display:block;padding:16px 24px;font-size:20px;font-weight:600;color:var(--text);
  border-left:3px solid transparent;transition:all var(--dur) var(--ease);
}
.drawer-nav a:hover,.drawer-nav a.active{border-left-color:var(--primary);color:var(--primary);background:rgba(18,199,154,.06)}
.drawer-foot{padding:22px 24px;border-top:1px solid var(--line)}
.btn-close-glass{background:none;border:0;color:var(--muted);font-size:22px;cursor:pointer;line-height:1}

/* ---------- Hero ---------- */
.hero{
  position:relative;min-height:min(88vh,820px);display:flex;align-items:flex-end;
  padding:140px 0 190px;overflow:hidden;
}
.hero-bg{
  position:absolute;inset:0;
  background:url(/assets/images/backpic/back-1.png) center/cover no-repeat;
  transform:scale(1.05);
}
.hero-mask{
  position:absolute;inset:0;
  background:
    linear-gradient(100deg,rgba(11,13,14,.96) 0%,rgba(11,13,14,.74) 44%,rgba(11,13,14,.28) 100%),
    linear-gradient(to top,rgba(11,13,14,1) 0%,rgba(11,13,14,0) 46%);
}
.hero-inner{position:relative;z-index:3;max-width:760px}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:999px;
  background:rgba(255,107,44,.14);border:1px solid rgba(255,107,44,.4);
  color:#FFB48A;font-size:13px;font-weight:600;margin-bottom:22px;
}
.hero-badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--glow)}
.hero h1{
  font-size:clamp(34px,5vw,62px);font-weight:800;letter-spacing:-.02em;line-height:1.15;
  margin-bottom:22px;
}
.hero h1 em{font-style:normal;color:var(--primary)}
.hero-sub{font-size:clamp(15px,1.5vw,18px);color:rgba(232,237,234,.82);max-width:600px;margin-bottom:34px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-facts{display:flex;flex-wrap:wrap;gap:36px;margin-top:44px;padding-top:30px;border-top:1px solid var(--line)}
.hero-fact b{display:block;font-family:"Oswald",sans-serif;font-size:28px;font-weight:600;color:#fff;line-height:1.1}
.hero-fact span{font-size:13px;color:var(--muted)}
@media (max-width:767px){
  .hero{padding:120px 0 130px;min-height:auto}
  .hero-facts{gap:22px;margin-top:32px;padding-top:22px}
  .hero-fact b{font-size:22px}
}

/* ---------- Library strip ---------- */
.library-strip{position:relative;z-index:6;margin-top:-120px;padding:0 0 110px}
.rail{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 2px 24px;scrollbar-width:thin;scrollbar-color:rgba(18,199,154,.45) transparent;
}
.rail::-webkit-scrollbar{height:4px}
.rail::-webkit-scrollbar-thumb{background:rgba(18,199,154,.45);border-radius:99px}
.rail::-webkit-scrollbar-track{background:transparent}
.rail-card{
  position:relative;flex:0 0 264px;scroll-snap-align:start;overflow:hidden;
  border-radius:var(--radius-card);border:1px solid var(--line);background:var(--panel);
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.rail-thumb{aspect-ratio:3/4;overflow:hidden;background:linear-gradient(140deg,rgba(18,199,154,.25),rgba(255,107,44,.15))}
.rail-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.rail-card:hover{transform:translateY(-4px) scale(1.02);border-color:rgba(18,199,154,.45);box-shadow:var(--shadow-dark)}
.rail-card:hover .rail-thumb img{transform:scale(1.06)}
.rail-info{
  position:absolute;left:0;right:0;bottom:0;padding:60px 16px 16px;
  background:linear-gradient(to top,rgba(6,8,9,.96),rgba(6,8,9,0));
}
.rail-info h3{font-size:15px;font-weight:600;line-height:1.5}
.rail-arrow{
  position:absolute;right:14px;bottom:14px;width:30px;height:30px;border-radius:50%;
  display:grid;place-items:center;background:var(--primary);color:#052A22;font-size:12px;
  opacity:0;transform:translateY(6px);transition:all var(--dur) var(--ease);
}
.rail-card:hover .rail-arrow{opacity:1;transform:translateY(0)}
.badge-soft{
  position:absolute;top:12px;left:12px;z-index:2;padding:4px 12px;border-radius:999px;
  font-size:12px;font-weight:500;color:#E8EDEA;
  background:rgba(11,13,14,.56);border:1px solid var(--line-strong);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
}
@media (max-width:991px){.library-strip{margin-top:-80px;padding-bottom:88px}.rail-card{flex:0 0 232px}}
@media (max-width:767px){.library-strip{margin-top:-56px;padding-bottom:70px}.rail-card{flex:0 0 82%}}

/* ---------- Trending ---------- */
.hero-card{
  position:relative;border-radius:var(--radius-card);overflow:hidden;
  border:1px solid var(--line);background:var(--panel);height:100%;
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.hero-card:hover{transform:translateY(-4px);border-color:rgba(18,199,154,.4);box-shadow:var(--shadow-dark)}
.hero-card>img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-card-no{
  position:absolute;top:18px;left:22px;font-family:"Oswald",sans-serif;font-size:52px;
  font-weight:600;color:rgba(255,107,44,.55);line-height:1;
}
.hero-card-body{padding:26px 26px 30px}
.chip{
  display:inline-block;padding:4px 12px;border-radius:999px;font-size:12px;font-weight:600;
  background:var(--primary-dim);color:var(--primary);border:1px solid rgba(18,199,154,.35);margin-bottom:14px;
}
.hero-card-body h3{font-size:23px;font-weight:700;line-height:1.4;margin-bottom:12px}
.hero-card-body p{font-size:15px;color:var(--muted);line-height:1.85}
.rank-list{border-top:1px solid var(--line)}
.rank-list li{border-bottom:1px solid var(--line)}
.rank-list a{display:flex;gap:18px;align-items:flex-start;padding:22px 4px;transition:padding-left var(--dur) var(--ease)}
.rank-list a:hover{padding-left:12px}
.rank-no{
  font-size:30px;font-weight:600;line-height:1;color:rgba(255,107,44,.35);
  transition:color var(--dur) var(--ease);flex-shrink:0;
}
.rank-list a:hover .rank-no{color:var(--primary)}
.rank-body h3{font-size:16px;font-weight:600;line-height:1.5;margin-bottom:6px}
.rank-body span{font-size:13px;color:var(--muted)}

/* ---------- Feature split ---------- */
.sec-alt{background:linear-gradient(180deg,rgba(20,24,26,.55),rgba(11,13,14,0))}
.feature-row + .feature-row{margin-top:110px}
.feature-lead{color:var(--muted);font-size:16px;margin:22px 0 26px;max-width:460px}
.dot-list{display:grid;gap:16px;margin-bottom:28px}
.dot-list li{position:relative;padding-left:22px;font-size:15px;color:rgba(232,237,234,.86);line-height:1.75}
.dot-list li::before{
  content:"";position:absolute;left:0;top:12px;width:6px;height:6px;border-radius:2px;background:var(--primary);
}
.pic-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.pic-grid figure{margin:0;border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line);background:var(--panel)}
.pic-grid img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .5s var(--ease)}
.pic-grid figure:hover img{transform:scale(1.05)}
.pic-grid figcaption{padding:12px 14px;font-size:13.5px;color:var(--muted);border-top:1px solid var(--line)}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--primary);
  border-bottom:1px solid rgba(18,199,154,.35);padding-bottom:4px;
}
.link-arrow:hover{color:var(--accent);border-bottom-color:rgba(255,107,44,.5)}
.link-arrow i{transition:transform var(--dur) var(--ease)}
.link-arrow:hover i{transform:translateX(4px)}
@media (max-width:991px){.feature-row + .feature-row{margin-top:80px}}

/* ---------- News (CMS) ---------- */
.sec-news{background:rgba(20,24,26,.4);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.tab-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:36px}
.tab-pill{
  display:inline-flex;align-items:center;padding:8px 18px;border-radius:999px;font-size:14px;
  border:1px solid var(--line-strong);color:rgba(232,237,234,.8);background:rgba(255,255,255,.03);
  transition:all var(--dur) var(--ease);
}
.tab-pill:hover{border-color:var(--primary);color:var(--primary)}
.tab-pill.active{background:var(--primary);border-color:var(--primary);color:#052A22;font-weight:600}
.news-card{
  display:flex;flex-direction:column;height:100%;overflow:hidden;
  border-radius:var(--radius-card);border:1px solid var(--line);background:var(--panel);
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.news-card:hover{transform:translateY(-4px);border-color:rgba(18,199,154,.4);box-shadow:var(--shadow-dark)}
.news-cover{
  position:relative;display:block;aspect-ratio:16/9;overflow:hidden;
  background:linear-gradient(135deg,rgba(18,199,154,.3),rgba(255,107,44,.18));
}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.news-card:hover .news-cover img{transform:scale(1.05)}
.news-cat{
  position:absolute;top:12px;left:12px;z-index:2;padding:4px 12px;border-radius:999px;
  font-size:12px;font-weight:500;color:#E8EDEA;background:rgba(11,13,14,.6);
  border:1px solid var(--line-strong);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
}
.news-body{display:flex;flex-direction:column;flex:1;padding:20px 20px 22px}
.news-title{
  font-size:17px;font-weight:600;line-height:1.55;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-title a:hover{color:var(--primary)}
.news-desc{
  font-size:14px;color:var(--muted);line-height:1.8;margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);
}
.news-read{color:var(--primary);font-weight:600}
.news-read:hover{text-decoration:underline}
.empty-state{
  display:flex;flex-direction:column;align-items:center;gap:16px;text-align:center;
  padding:70px 24px;border:1px dashed var(--line-strong);border-radius:var(--radius-card);
  background:rgba(255,255,255,.02);color:var(--muted);
}
.empty-state i{font-size:34px;color:rgba(18,199,154,.6)}
.empty-state p{font-size:15px}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);max-width:900px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-btn{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:62px;padding:20px 4px;background:none;border:0;color:var(--text);
  text-align:left;font-size:17px;font-weight:600;cursor:pointer;
  transition:color var(--dur) var(--ease);
}
.faq-btn:hover{color:var(--primary)}
.faq-btn::after{content:none}
.faq-icon{
  flex-shrink:0;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--line-strong);color:var(--primary);font-size:12px;
  transition:transform .3s var(--ease),background .3s var(--ease);
}
.faq-btn[aria-expanded="true"]{color:var(--primary)}
.faq-btn[aria-expanded="true"] .faq-icon{transform:rotate(45deg);background:rgba(18,199,154,.16);border-color:rgba(18,199,154,.5)}
.faq-body{background:rgba(255,255,255,.03);border-radius:12px;padding:20px;font-size:15px;line-height:1.9;color:var(--muted);margin-bottom:18px}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;padding:100px 0;
  background:var(--panel);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.cta-band::before{
  content:"";position:absolute;left:-12%;top:-45%;width:62%;height:190%;
  background:radial-gradient(circle at center,rgba(18,199,154,.18),transparent 66%);pointer-events:none;
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.cta-copy h2{font-size:clamp(26px,3vw,38px);line-height:1.25;margin-bottom:16px}
.cta-copy p{color:var(--muted);font-size:16px;max-width:480px}
.cta-form{display:flex;gap:12px;flex-wrap:wrap}
.cta-form input{
  flex:1 1 240px;min-width:0;padding:15px 20px;border-radius:var(--radius-input);
  background:rgba(255,255,255,.05);border:1px solid var(--line-strong);color:#fff;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.cta-form input::placeholder{color:rgba(147,160,155,.9)}
.cta-form input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(18,199,154,.22)}
.cta-note{margin-top:14px;font-size:13px;color:var(--muted)}
@media (max-width:991px){.cta-inner{grid-template-columns:1fr;gap:32px}}
@media (max-width:767px){.cta-band{padding:70px 0}.cta-form .btn{width:100%}}

/* ---------- Footer ---------- */
.site-footer{background:#080A0B;border-top:1px solid var(--line);padding-top:76px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:44px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-brand .brand-text{font-size:18px}
.footer-desc{font-size:14px;color:var(--muted);line-height:1.9;max-width:320px}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px}
.footer-col li{margin-bottom:11px}
.footer-col a,.footer-col span{font-size:14px;color:var(--muted)}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  margin-top:60px;padding:22px 0;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:13px;color:rgba(147,160,155,.85);
}
@media (max-width:991px){.footer-grid{grid-template-columns:1fr 1fr;gap:36px}}
@media (max-width:575px){.footer-grid{grid-template-columns:1fr}}

/* ---------- Motion ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}
@media (max-width:991px){
  .sec{padding:88px 0}
  .sec-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:34px}
}
@media (max-width:767px){
  .sec{padding:70px 0}
  .wrap{padding:0 18px}
  .brand-text{font-size:17px}
  .hero-actions .btn{flex:1 1 auto}
}

/* roulang page: article */
:root{
  --bg:#0B0D0E;
  --panel:#14181A;
  --overlay:#1D2225;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.18);
  --primary:#12C79A;
  --primary-soft:rgba(18,199,154,.14);
  --primary-line:rgba(18,199,154,.4);
  --signal:#FF6B2C;
  --glow:#C9F55C;
  --text:#F2F4F3;
  --text-2:#9AA5A1;
  --text-3:#6E7A76;
  --paper:#F6F5F1;
  --paper-2:#EFEEE8;
  --ink:#1A1D1C;
  --ink-2:#454C4A;
  --ink-3:#7A8280;
  --r-card:18px;
  --r-img:14px;
  --r-pill:999px;
  --r-sm:12px;
  --shadow-dark:0 24px 60px rgba(0,0,0,.45);
  --shadow-soft:0 12px 32px rgba(0,0,0,.28);
  --shadow-paper:0 12px 32px rgba(20,24,25,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:240ms;
  --gap:24px;
  --nav-h:72px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;object-fit:cover;}
a{color:inherit;text-decoration:none;transition:color var(--dur) var(--ease);}
a:hover{color:var(--primary);}
button{font-family:inherit;border:0;background:none;cursor:pointer;color:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:4px;}
.wrap{width:100%;max-width:1320px;margin:0 auto;padding:0 24px;}
.num{font-family:"Oswald","Archivo",Impact,sans-serif;font-feature-settings:"tnum";}

/* ---------- Header ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1000;
  height:var(--nav-h);
  display:flex;
  align-items:center;
  background:rgba(11,13,14,.94);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  transition:height var(--dur) var(--ease), background var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.site-header.is-scrolled{height:64px;box-shadow:0 12px 40px rgba(0,0,0,.42);}
.header-inner{display:flex;align-items:center;gap:32px;width:100%;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  background:linear-gradient(135deg,var(--primary),#0E9E7B);
  color:#06231C;font-weight:800;font-size:17px;
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 8px 22px rgba(18,199,154,.28);
}
.brand-text{font-size:18px;font-weight:700;letter-spacing:.01em;color:var(--text);}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:8px;}
.main-nav a{
  position:relative;
  display:inline-block;
  padding:8px 14px;
  font-size:15px;
  color:var(--text-2);
  border-radius:var(--r-pill);
}
.main-nav a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:1px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;
  transition:transform var(--dur) var(--ease);
}
.main-nav a:hover{color:var(--text);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.active{color:var(--text);font-weight:600;}
.main-nav a.active::before{
  content:"";position:absolute;left:2px;top:50%;transform:translateY(-50%);
  width:6px;height:6px;border-radius:50%;background:var(--primary);
  box-shadow:0 0 0 4px rgba(18,199,154,.14);
}
.main-nav a.active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.icon-btn{
  width:40px;height:40px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.06);
  border:1px solid var(--line);
  color:var(--text-2);
  transition:all var(--dur) var(--ease);
}
.icon-btn:hover{color:var(--text);border-color:var(--primary-line);background:rgba(18,199,154,.12);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);
  font-size:15px;font-weight:600;
  padding:12px 24px;
  transition:all var(--dur) var(--ease);
  white-space:nowrap;
  cursor:pointer;
}
.btn-primary{background:var(--primary);color:#052A21;box-shadow:0 10px 26px rgba(18,199,154,.26);}
.btn-primary:hover{background:var(--signal);color:#2A0F03;box-shadow:0 12px 30px rgba(255,107,44,.28);}
.btn-ghost{
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.3);
  color:var(--text);
  backdrop-filter:blur(8px);
}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);background:rgba(18,199,154,.08);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-secondary{
  border-radius:var(--r-sm);
  background:transparent;
  border:1px solid var(--line-strong);
  color:var(--text);
}
.btn-secondary:hover{border-color:var(--primary);color:var(--primary);}
.menu-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.05);color:var(--text);font-size:17px;}

/* ---------- Drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(6,8,9,.6);backdrop-filter:blur(4px);
  opacity:0;pointer-events:none;transition:opacity var(--dur) var(--ease);z-index:1100;
}
.drawer-mask.open{opacity:1;pointer-events:auto;}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(84vw,360px);
  background:rgba(11,13,14,.96);
  backdrop-filter:blur(22px) saturate(140%);
  border-left:1px solid var(--line);
  padding:96px 28px 32px;
  transform:translateX(100%);
  transition:transform 320ms var(--ease);
  z-index:1200;
  overflow-y:auto;
}
.mobile-drawer.open{transform:translateX(0);}
.mobile-drawer a{
  display:block;
  font-size:20px;font-weight:600;
  padding:16px 0 16px 16px;
  border-left:3px solid transparent;
  border-bottom:1px solid var(--line);
  color:var(--text-2);
}
.mobile-drawer a:hover,.mobile-drawer a.active{border-left-color:var(--primary);color:var(--text);}
.drawer-close{position:absolute;top:22px;right:22px;width:40px;height:40px;border-radius:50%;border:1px solid var(--line);color:var(--text-2);}

/* ---------- Breadcrumb & post head ---------- */
.page-top{padding:calc(var(--nav-h) + 44px) 0 34px;background:radial-gradient(120% 90% at 12% -20%,rgba(18,199,154,.14),transparent 62%);}
.breadcrumb-line{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:14px;color:var(--text-3);margin-bottom:22px;}
.breadcrumb-line a{color:var(--text-3);}
.breadcrumb-line a:hover{color:var(--primary);}
.breadcrumb-line .sep{color:rgba(255,255,255,.2);}
.breadcrumb-line .current{color:var(--primary);}
.post-badge{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.04em;
  padding:7px 16px;border-radius:var(--r-pill);
  background:var(--primary-soft);
  border:1px solid var(--primary-line);
  color:var(--primary);
  margin-bottom:20px;
}
.post-badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--glow);}
.post-title{
  font-size:clamp(30px,3.6vw,42px);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.22;
  max-width:960px;
  margin-bottom:22px;
}
.post-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  font-size:14px;color:var(--text-3);
}
.post-meta .divider{width:1px;height:14px;background:rgba(255,255,255,.16);}
.post-meta .hl{color:var(--text-2);}

/* ---------- Article layout ---------- */
.article-wrap{padding:12px 0 0;}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 320px;
  gap:32px;
  align-items:start;
}
.paper{
  background:var(--paper);
  color:var(--ink);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-paper);
}
.article-panel{
  width:100%;
  max-width:820px;
  margin:0 auto;
  padding:clamp(26px,4vw,56px);
}
.post-content{font-size:17px;line-height:1.95;color:var(--ink);}
.post-content > * + *{margin-top:20px;}
.post-content h2{
  font-size:24px;font-weight:700;color:var(--ink);
  line-height:1.45;margin-top:44px;
  border-left:4px solid var(--primary);
  padding-left:14px;
}
.post-content h3{font-size:19px;font-weight:600;color:var(--ink);margin-top:32px;}
.post-content p{color:#2E3533;}
.post-content a{color:#0E9E7B;border-bottom:1px solid rgba(14,158,123,.35);}
.post-content a:hover{color:var(--signal);border-bottom-color:var(--signal);}
.post-content strong{color:#111;font-weight:700;}
.post-content ul,.post-content ol{padding-left:4px;}
.post-content ul li{position:relative;padding-left:22px;margin:10px 0;color:#2E3533;}
.post-content ul li::before{
  content:"";position:absolute;left:0;top:12px;
  width:7px;height:7px;border-radius:50%;background:var(--primary);
}
.post-content ol{list-style:decimal;padding-left:22px;}
.post-content ol li{margin:10px 0;color:#2E3533;}
.post-content blockquote{
  margin:28px 0;padding:20px 24px;
  background:var(--paper-2);
  border-left:4px solid var(--primary);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:#3A4140;
  font-size:16px;
}
.post-content img{
  border-radius:var(--r-img);
  box-shadow:var(--shadow-paper);
  margin:28px auto;
  width:100%;
  height:auto;
}
.post-content figure{margin:28px 0;}
.post-content figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:10px;}
.post-content table{
  display:block;width:100%;overflow-x:auto;
  border-collapse:collapse;font-size:15px;margin:26px 0;
}
.post-content th,.post-content td{
  border:1px solid #DEDCD5;padding:11px 14px;text-align:left;white-space:nowrap;
}
.post-content th{background:#E9E7E0;font-weight:600;}
.post-content hr{border:0;border-top:1px solid #DEDCD5;margin:34px 0;}
.post-content code{background:#E9E7E0;padding:2px 6px;border-radius:6px;font-size:15px;}

/* ---------- Empty state ---------- */
.empty-state{text-align:center;padding:52px 16px 60px;}
.empty-icon{
  width:64px;height:64px;border-radius:50%;margin:0 auto 20px;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary-soft);color:#0E9E7B;font-size:24px;
}
.empty-state h2{font-size:22px;color:var(--ink);margin-bottom:12px;}
.empty-state p{color:var(--ink-2);font-size:15px;margin-bottom:24px;}
.empty-state .btn-primary{box-shadow:none;}

/* ---------- Sidebar ---------- */
.article-side{display:flex;flex-direction:column;gap:20px;position:sticky;top:96px;}
.side-card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:22px;
  transition:border-color var(--dur) var(--ease);
}
.side-card:hover{border-color:var(--primary-line);}
.side-title{
  font-size:15px;font-weight:700;color:var(--text);
  display:flex;align-items:center;gap:10px;margin-bottom:16px;
}
.side-title::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--primary);}
.toc-list{display:flex;flex-direction:column;gap:2px;}
.toc-list a{
  display:block;font-size:14px;color:var(--text-2);line-height:1.6;
  padding:7px 10px;border-radius:8px;border-left:2px solid transparent;
}
.toc-list a:hover{color:var(--primary);background:rgba(18,199,154,.08);border-left-color:var(--primary);}
.toc-empty{font-size:13px;color:var(--text-3);}
.mini-post{display:flex;gap:12px;padding:12px 0;border-bottom:1px solid var(--line);align-items:center;}
.mini-post:last-child{border-bottom:0;padding-bottom:0;}
.mini-post img{width:70px;height:52px;border-radius:10px;flex:0 0 auto;background:var(--overlay);}
.mini-post h4{font-size:14px;font-weight:600;line-height:1.5;color:var(--text-2);transition:color var(--dur) var(--ease);}
.mini-post:hover h4{color:var(--primary);}
.side-back{
  display:flex;align-items:center;justify-content:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--text-2);
  border:1px solid var(--line);border-radius:var(--r-sm);
  padding:12px;transition:all var(--dur) var(--ease);
}
.side-back:hover{border-color:var(--primary);color:var(--primary);background:rgba(18,199,154,.06);}

/* ---------- Related scroll ---------- */
.related-section{padding:76px 0 0;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px;}
.sec-head h2{
  font-size:clamp(22px,2.4vw,30px);font-weight:700;
  display:flex;align-items:center;gap:14px;
}
.sec-head h2::before{content:"";width:4px;height:26px;border-radius:2px;background:var(--primary);}
.sec-index{font-family:"Oswald",sans-serif;font-size:15px;color:rgba(255,107,44,.6);letter-spacing:.08em;}
.sec-link{font-size:14px;color:var(--primary);display:inline-flex;align-items:center;gap:6px;transition:transform var(--dur) var(--ease);}
.sec-link:hover{transform:translateX(4px);}
.scroll-track{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding-bottom:14px;
  scrollbar-width:thin;scrollbar-color:rgba(18,199,154,.5) transparent;
}
.scroll-track::-webkit-scrollbar{height:3px;}
.scroll-track::-webkit-scrollbar-thumb{background:rgba(18,199,154,.5);border-radius:3px;}
.scroll-track::-webkit-scrollbar-track{background:rgba(255,255,255,.06);}
.scroll-card{
  flex:0 0 268px;scroll-snap-align:start;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.scroll-card:hover{transform:translateY(-4px);border-color:var(--primary-line);}
.scroll-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,#1B2124,#101415);}
.scroll-thumb img{width:100%;height:100%;transition:transform 400ms var(--ease);}
.scroll-card:hover .scroll-thumb img{transform:scale(1.05);}
.scroll-thumb::after{content:"";position:absolute;inset:auto 0 0 0;height:60%;background:linear-gradient(to top,rgba(11,13,14,.88),transparent);}
.chip{
  position:absolute;top:12px;left:12px;z-index:2;
  font-size:12px;padding:4px 11px;border-radius:var(--r-pill);
  background:rgba(11,13,14,.6);border:1px solid var(--line-strong);
  color:var(--text-2);backdrop-filter:blur(6px);
}
.scroll-body{padding:16px 18px 20px;}
.scroll-body h3{font-size:16px;font-weight:600;line-height:1.55;color:var(--text);}
.scroll-body p{font-size:13px;color:var(--text-3);margin-top:8px;line-height:1.7;}

/* ---------- Post nav ---------- */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:56px;}
.post-nav-item{
  display:flex;flex-direction:column;gap:8px;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 22px;transition:all var(--dur) var(--ease);
}
.post-nav-item:hover{border-color:var(--primary-line);transform:translateY(-3px);}
.post-nav-item .label{font-size:12px;color:var(--text-3);letter-spacing:.06em;}
.post-nav-item .title{font-size:15px;font-weight:600;color:var(--text);line-height:1.6;}
.post-nav-item.next{text-align:right;align-items:flex-end;}

/* ---------- CTA ---------- */
.cta-section{padding:96px 0;margin-top:80px;position:relative;overflow:hidden;border-top:1px solid var(--line);}
.cta-section::before{
  content:"";position:absolute;top:-160px;left:50%;transform:translateX(-50%);
  width:760px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(18,199,154,.16),transparent 68%);
  pointer-events:none;
}
.cta-inner{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.cta-inner h2{font-size:clamp(26px,3vw,38px);font-weight:700;line-height:1.25;margin-bottom:18px;}
.cta-inner p{color:var(--text-2);font-size:15.5px;line-height:1.85;max-width:520px;}
.cta-form{display:flex;gap:12px;background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);padding:20px;}
.cta-form input{
  flex:1;min-width:0;background:rgba(255,255,255,.04);
  border:1px solid var(--line);border-radius:var(--r-sm);
  padding:13px 16px;color:var(--text);font-size:15px;outline:none;
  transition:all var(--dur) var(--ease);
}
.cta-form input::placeholder{color:var(--text-3);}
.cta-form input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(18,199,154,.2);}
.cta-note{font-size:13px;color:var(--text-3);margin-top:14px;}

/* ---------- Footer ---------- */
.site-footer{background:#08090A;border-top:1px solid var(--line);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:52px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.footer-desc{font-size:14px;color:var(--text-3);line-height:1.9;max-width:320px;}
.footer-col h4{font-size:15px;font-weight:700;color:var(--text);margin-bottom:20px;}
.footer-col ul{display:flex;flex-direction:column;gap:13px;}
.footer-col a,.footer-col span{font-size:14px;color:var(--text-3);line-height:1.7;}
.footer-col a:hover{color:var(--primary);}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  border-top:1px solid var(--line);padding:22px 0 28px;
  font-size:13px;color:var(--text-3);
}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 600ms var(--ease),transform 600ms var(--ease);}
.reveal.in{opacity:1;transform:none;}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .wrap{max-width:1140px;}
  .article-layout{grid-template-columns:minmax(0,1fr) 290px;}
  .footer-grid{grid-template-columns:1.2fr 1fr 1fr;}
}
@media (max-width:991px){
  .main-nav{display:none;}
  .menu-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .article-layout{grid-template-columns:1fr;}
  .article-side{position:static;}
  .article-panel{max-width:none;}
  .cta-inner{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .scroll-card{flex:0 0 240px;}
}
@media (max-width:767px){
  :root{--nav-h:64px;}
  .wrap{padding:0 16px;}
  .page-top{padding-top:calc(var(--nav-h) + 28px);}
  .post-title{font-size:clamp(24px,6.4vw,30px);}
  .article-panel{padding:26px 20px;}
  .post-content{font-size:16px;}
  .post-nav{grid-template-columns:1fr;}
  .post-nav-item.next{text-align:left;align-items:flex-start;}
  .cta-section{padding:64px 0;margin-top:56px;}
  .cta-form{flex-direction:column;}
  .cta-form .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:36px;}
  .scroll-card{flex:0 0 82%;}
  .related-section{padding:56px 0 0;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:14px;}
}
@media (max-width:519px){
  .brand-text{font-size:16px;}
  .header-actions .btn-sm{display:none;}
  .post-meta{font-size:13px;gap:10px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition-duration:.01ms !important;scroll-behavior:auto !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category1 */
:root{
  --bg:#0B0D0E;
  --panel:#14181A;
  --panel-2:#1D2225;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.18);
  --text:#EDF2F0;
  --muted:#98A5A1;
  --primary:#12C79A;
  --primary-deep:#0E9C79;
  --accent:#FF6B2C;
  --glow:#C9F55C;
  --paper:#F6F5F1;
  --r-card:18px;
  --r-img:14px;
  --r-pill:999px;
  --r-btn:12px;
  --sh-dark:0 24px 60px rgba(0,0,0,.45);
  --sh-soft:0 12px 32px rgba(0,0,0,.35);
  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:240ms;
  --container:1320px;
}
@media (max-width:1399.98px){:root{--container:1140px}}
@media (max-width:991.98px){:root{--container:100%}}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.9;-webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none;transition:color var(--dur) var(--ease)}
a:hover{color:var(--primary)}
button,input{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
::selection{background:rgba(18,199,154,.35)}
.num{font-family:"Oswald","Archivo",system-ui,sans-serif;font-weight:600;letter-spacing:.02em}
.wrap{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
@media (max-width:767.98px){.wrap{padding:0 16px}}
.section{padding:96px 0}
@media (max-width:991.98px){.section{padding:76px 0}}
@media (max-width:767.98px){.section{padding:60px 0}}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  background:rgba(11,13,14,.94);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid var(--line);
  box-shadow:0 12px 32px rgba(0,0,0,.32);
  transition:background var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.header-inner{display:flex;align-items:center;gap:28px;height:72px;transition:height var(--dur) var(--ease)}
.site-header.is-scrolled .header-inner{height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  color:#04241d;font-size:18px;font-weight:700;font-family:"Oswald",sans-serif;
  box-shadow:0 8px 20px rgba(18,199,154,.28);
}
.brand-text{font-size:18px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:26px;margin:0 auto}
.main-nav a{position:relative;font-size:15px;color:var(--muted);padding:6px 0;white-space:nowrap}
.main-nav a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;border-radius:2px;
  background:var(--primary);transition:width var(--dur) var(--ease);
}
.main-nav a:hover{color:var(--text)}
.main-nav a:hover::after{width:100%}
.main-nav a.active{color:#fff;font-weight:600}
.main-nav a.active::before{
  content:"";display:inline-block;width:6px;height:6px;border-radius:50%;
  background:var(--primary);margin-right:8px;vertical-align:middle;
}
.main-nav a.active::after{width:100%;opacity:.55}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.icon-btn{
  width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
  background:rgba(255,255,255,.06);border:1px solid var(--line);color:var(--text);
  cursor:pointer;transition:all var(--dur) var(--ease);
}
.icon-btn:hover{background:rgba(18,199,154,.14);border-color:rgba(18,199,154,.5);color:var(--primary)}
.btn-pill{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);padding:12px 26px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease),transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.btn-pill.sm{padding:9px 20px;font-size:14px}
.btn-primary{background:var(--primary);color:#04241d}
.btn-primary:hover{background:var(--accent);color:#1b0c04;transform:translateY(-2px);box-shadow:0 10px 26px rgba(255,107,44,.28)}
.btn-ghost{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.3);color:#fff}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.btn-outline{background:transparent;border-color:var(--line-strong);color:var(--text);border-radius:var(--r-btn)}
.btn-outline:hover{border-color:var(--primary);color:var(--primary)}
.hamburger{
  display:none;width:42px;height:42px;border-radius:12px;place-items:center;
  background:rgba(255,255,255,.06);border:1px solid var(--line);color:var(--text);cursor:pointer;
}
@media (max-width:991.98px){
  .main-nav,.header-actions .btn-pill{display:none}
  .hamburger{display:grid}
  .header-inner{height:64px;gap:14px}
  .brand{margin-right:auto}
}
.drawer{background:rgba(11,13,14,.96)!important;backdrop-filter:blur(22px);border-left:1px solid var(--line)!important;width:min(86vw,360px)}
.drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:20px 24px}
.drawer .brand-text{font-size:17px}
.drawer .btn-close{filter:invert(1) grayscale(1);opacity:.7}
.drawer-nav{display:flex;flex-direction:column;gap:6px;padding-top:12px}
.drawer-nav a{
  font-size:20px;font-weight:600;padding:12px 0 12px 16px;
  border-left:3px solid transparent;color:var(--muted);
}
.drawer-nav a:hover,.drawer-nav a.active{color:#fff;border-left-color:var(--primary)}
.drawer-foot{margin-top:32px;padding-top:20px;border-top:1px solid var(--line);font-size:14px;color:var(--muted)}

/* ============ 内页 Hero ============ */
.page-hero{position:relative;overflow:hidden;display:flex;align-items:flex-end;min-height:min(56vh,470px);padding:132px 0 56px}
.page-hero .bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center;transform:scale(1.02)}
.page-hero .veil{
  position:absolute;inset:0;
  background:
    linear-gradient(90deg,rgba(11,13,14,.95) 0%,rgba(11,13,14,.78) 46%,rgba(11,13,14,.42) 100%),
    linear-gradient(0deg,var(--bg) 2%,rgba(11,13,14,0) 62%);
}
.page-hero .wrap{position:relative;z-index:2}
.crumb{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--muted);margin-bottom:18px}
.crumb a:hover{color:var(--primary)}
.crumb .sep{opacity:.5}
.crumb .current{color:var(--primary)}
.hero-title{
  font-size:clamp(34px,5vw,58px);font-weight:800;line-height:1.15;letter-spacing:-.02em;
  max-width:760px;
}
.hero-title .brand-line{display:block;color:var(--primary);font-size:clamp(24px,3.2vw,38px);letter-spacing:-.01em;margin-top:8px}
.hero-sub{margin-top:18px;max-width:640px;font-size:17px;color:#CFD8D5;line-height:1.85}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.chip{
  display:inline-flex;align-items:center;gap:7px;padding:7px 15px;border-radius:var(--r-pill);
  font-size:13px;color:#D6DEDB;background:rgba(255,255,255,.06);
  border:1px solid var(--line);backdrop-filter:blur(8px);
}
.chip .dot{width:6px;height:6px;border-radius:50%;background:var(--glow);box-shadow:0 0 10px rgba(201,245,92,.7)}
.chip.warm .dot{background:var(--accent);box-shadow:0 0 10px rgba(255,107,44,.7)}

/* ============ 板块标题 ============ */
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:40px}
.section-head .titles{max-width:760px}
.head-index{display:block;font-size:13px;letter-spacing:.22em;color:rgba(255,107,44,.6);margin-bottom:8px}
.section-head h2{
  position:relative;padding-left:16px;
  font-size:clamp(26px,3vw,40px);font-weight:700;line-height:1.25;letter-spacing:-.01em;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:2px;background:var(--primary);
}
.head-sub{margin-top:12px;color:var(--muted);font-size:15px;max-width:700px}
.link-more{color:var(--primary);font-size:15px;font-weight:600;display:inline-flex;align-items:center;gap:8px;transition:transform var(--dur) var(--ease)}
.link-more:hover{transform:translateX(4px);color:var(--primary)}

/* ============ 数据条 ============ */
.stat-band{padding:0 0 8px}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;transition:border-color var(--dur) var(--ease),transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.stat-card:hover{border-color:rgba(18,199,154,.45);transform:translateY(-4px);box-shadow:var(--sh-soft)}
.stat-num{font-size:38px;line-height:1;color:#fff}
.stat-num span{font-size:16px;color:var(--primary);margin-left:6px}
.stat-label{margin-top:10px;font-size:14px;color:var(--muted)}
@media (max-width:991.98px){.stat-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:575.98px){.stat-grid{grid-template-columns:1fr;gap:14px}}

/* ============ 筛选竖条 ============ */
.filter-rail{
  position:sticky;top:96px;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;
}
.rail-title{font-size:16px;font-weight:700;display:flex;align-items:center;gap:9px;margin-bottom:20px}
.rail-title i{color:var(--primary)}
.filter-group{padding:18px 0;border-top:1px solid var(--line)}
.filter-group:first-of-type{border-top:none;padding-top:0}
.filter-group h4{font-size:13px;letter-spacing:.12em;color:var(--muted);font-weight:600;margin-bottom:12px}
.filter-item{display:flex;align-items:center;gap:10px;padding:7px 0;font-size:14px;color:#C6CFCC;cursor:pointer;transition:color var(--dur) var(--ease)}
.filter-item:hover{color:#fff}
.filter-item input{
  appearance:none;-webkit-appearance:none;width:18px;height:18px;flex:0 0 18px;
  border-radius:6px;border:1px solid var(--line-strong);background:rgba(255,255,255,.04);
  display:grid;place-items:center;cursor:pointer;transition:all var(--dur) var(--ease);
}
.filter-item input:checked{background:var(--primary);border-color:var(--primary)}
.filter-item input:checked::after{content:"✓";font-size:12px;color:#04241d;font-weight:700;line-height:1}
.filter-item input:focus-visible{outline:2px solid var(--primary);outline-offset:3px}
.rail-note{margin-top:22px;padding-top:18px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}
@media (max-width:991.98px){.filter-rail{position:static;margin-bottom:28px}}

/* ============ 标签行 ============ */
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.chip-btn{
  padding:9px 18px;border-radius:var(--r-pill);font-size:14px;color:#CBD4D1;
  background:rgba(255,255,255,.05);border:1px solid var(--line);cursor:pointer;
  transition:all var(--dur) var(--ease);
}
.chip-btn:hover{border-color:rgba(18,199,154,.55);color:var(--primary)}
.chip-btn.on{background:var(--primary);border-color:var(--primary);color:#04241d;font-weight:600}

/* ============ 三列大卡 ============ */
.tile{
  height:100%;background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.tile:hover{transform:translateY(-4px);border-color:rgba(18,199,154,.45);box-shadow:var(--sh-soft)}
.tile-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:linear-gradient(140deg,rgba(18,199,154,.22),rgba(255,107,44,.14))}
.tile-media img{width:100%;height:100%;object-fit:cover;transition:transform 420ms var(--ease)}
.tile:hover .tile-media img{transform:scale(1.04)}
.tile-media::after{content:"";position:absolute;inset:auto 0 0 0;height:46%;background:linear-gradient(180deg,rgba(11,13,14,0),rgba(11,13,14,.72))}
.badge-soft{
  position:absolute;top:12px;left:12px;z-index:2;
  padding:5px 12px;border-radius:var(--r-pill);font-size:12px;color:#fff;
  background:rgba(11,13,14,.6);border:1px solid var(--line-strong);backdrop-filter:blur(8px);
}
.badge-live{
  position:absolute;top:12px;right:12px;z-index:2;
  padding:5px 12px;border-radius:var(--r-pill);font-size:12px;font-weight:600;
  background:rgba(255,107,44,.9);color:#1b0c04;
}
.tile-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.tile-body h3{font-size:19px;font-weight:600;line-height:1.45}
.tile-body p{font-size:14px;color:var(--muted);line-height:1.8;flex:1}
.tile-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}
.tile-meta .go{color:var(--primary);font-weight:600;display:inline-flex;align-items:center;gap:6px;transition:gap var(--dur) var(--ease)}
.tile:hover .tile-meta .go{gap:10px}

/* ============ 流程 ============ */
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.flow-item{
  position:relative;background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 24px;transition:border-color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.flow-item:hover{border-color:rgba(18,199,154,.45);transform:translateY(-4px)}
.flow-step{font-size:34px;color:rgba(255,107,44,.5);line-height:1}
.flow-item h3{font-size:18px;font-weight:600;margin:14px 0 8px}
.flow-item p{font-size:14px;color:var(--muted);line-height:1.8}
@media (max-width:991.98px){.flow-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:575.98px){.flow-grid{grid-template-columns:1fr}}

/* ============ 分页 ============ */
.pager{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:52px}
.pager a,.pager span{
  display:grid;place-items:center;min-width:40px;height:40px;padding:0 8px;border-radius:12px;
  border:1px solid var(--line);font-size:14px;color:var(--muted);
  transition:all var(--dur) var(--ease);
}
.pager a:hover{border-color:var(--primary);color:var(--primary)}
.pager .current{background:var(--primary);border-color:var(--primary);color:#04241d;font-weight:600}
.pager .wide{padding:0 18px}

/* ============ CTA ============ */
.cta-band{position:relative;overflow:hidden;background:var(--panel);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(620px 320px at 18% 50%,rgba(18,199,154,.2),transparent 72%),
             radial-gradient(420px 260px at 92% 30%,rgba(255,107,44,.13),transparent 70%);
}
.cta-inner{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;padding:76px 0}
.cta-inner h2{font-size:clamp(24px,2.8vw,36px);font-weight:700;line-height:1.3}
.cta-inner p{margin-top:14px;color:#C3CCCA;font-size:15px;max-width:520px}
.cta-form{display:flex;gap:12px;flex-wrap:wrap}
.cta-form input{
  flex:1 1 240px;min-width:0;padding:14px 18px;border-radius:var(--r-btn);
  background:rgba(255,255,255,.05);border:1px solid var(--line-strong);color:#fff;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease),background var(--dur) var(--ease);
}
.cta-form input::placeholder{color:#7C8985}
.cta-form input:focus{outline:none;border-color:var(--primary);background:rgba(18,199,154,.08);box-shadow:0 0 0 2px rgba(18,199,154,.35)}
.form-note{margin-top:12px;font-size:13px;color:var(--muted)}
@media (max-width:991.98px){.cta-inner{grid-template-columns:1fr;gap:28px;padding:60px 0}}

/* ============ 页脚 ============ */
.site-footer{border-top:1px solid var(--line);background:#0A0C0D;padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-desc{font-size:14px;color:var(--muted);line-height:1.85;max-width:340px}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:18px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li{font-size:14px;color:var(--muted)}
.footer-col a{color:var(--muted)}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  margin-top:52px;padding:22px 0;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:#6E7A77;
}
@media (max-width:991.98px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px}}
@media (max-width:575.98px){.footer-grid{grid-template-columns:1fr};.site-footer{padding-top:48px}}

/* ============ 进入动画 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{animation:none!important;transition-duration:.01ms!important}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --bg:#0B0D0E;
  --panel:#14181A;
  --raise:#1D2225;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.18);
  --primary:#12C79A;
  --primary-deep:#0A8F6F;
  --primary-soft:rgba(18,199,154,.14);
  --accent:#FF6B2C;
  --accent-soft:rgba(255,107,44,.18);
  --lime:#C9F55C;
  --text:#F2F4F3;
  --muted:rgba(242,244,243,.64);
  --muted-2:rgba(242,244,243,.42);
  --paper:#F6F5F1;
  --ink:#1A1D1C;
  --r-card:18px;
  --r-img:14px;
  --r-pill:999px;
  --r-btn:12px;
  --shadow-dark:0 24px 60px rgba(0,0,0,.45);
  --shadow-soft:0 12px 32px rgba(20,24,25,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:240ms;
  --wrap:1320px;
  --font-num:"Oswald","Archivo","Helvetica Neue",Arial,sans-serif;
}
@media (max-width:1399px){:root{--wrap:1140px}}
@media (max-width:767px){:root{--wrap:100%}}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;padding:0;
  background:var(--bg);color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:17px;line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color var(--dur) var(--ease)}
a:hover{color:var(--primary)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
::selection{background:rgba(18,199,154,.32);color:#fff}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px}
@media (max-width:767px){.wrap{padding:0 16px}}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(11,13,14,.94);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid var(--line);
  transition:background var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.site-header.is-scrolled{background:rgba(11,13,14,.99);box-shadow:0 14px 40px rgba(0,0,0,.5)}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  height:72px;transition:height var(--dur) var(--ease);
}
.site-header.is-scrolled .header-inner{height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:-.01em;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  color:#04231C;font-family:var(--font-num);font-weight:700;font-size:17px;
  box-shadow:0 8px 20px rgba(18,199,154,.28);
}
.brand-text{font-size:17px;color:var(--text);white-space:nowrap}
.brand:hover .brand-text{color:var(--primary)}

.main-nav{display:flex;align-items:center;gap:4px}
.main-nav a{
  position:relative;padding:9px 15px 9px 19px;border-radius:10px;
  font-size:15px;color:var(--muted);white-space:nowrap;
  transition:color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.main-nav a::after{
  content:"";position:absolute;left:19px;right:15px;bottom:3px;height:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;
  transition:transform var(--dur) var(--ease);
}
.main-nav a::before{
  content:"";position:absolute;left:6px;top:50%;width:6px;height:6px;border-radius:50%;
  background:var(--primary);transform:translateY(-50%) scale(0);
  transition:transform var(--dur) var(--ease);
}
.main-nav a:hover{color:var(--text);background:rgba(255,255,255,.04)}
.main-nav a:hover::after{transform:scaleX(1)}
.main-nav a.active{color:var(--text);font-weight:600}
.main-nav a.active::before{transform:translateY(-50%) scale(1)}
.main-nav a.active::after{transform:scaleX(1)}

.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.icon-btn{
  width:42px;height:42px;border-radius:50%;display:grid;place-items:center;
  background:rgba(255,255,255,.06);border:1px solid var(--line);color:var(--muted);
  transition:all var(--dur) var(--ease);
}
.icon-btn:hover{color:var(--text);border-color:rgba(18,199,154,.5);background:var(--primary-soft)}
.burger{display:none;width:42px;height:42px;border-radius:12px;place-items:center;
  background:rgba(255,255,255,.06);border:1px solid var(--line);color:var(--text)}
.burger:hover{border-color:rgba(18,199,154,.5);color:var(--primary)}

.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border-radius:var(--r-pill);
  background:var(--primary);color:#04231C;font-weight:700;font-size:15px;
  border:1px solid transparent;white-space:nowrap;
  transition:all var(--dur) var(--ease);
}
.btn-main:hover{background:var(--accent);color:#22100A;transform:translateY(-2px);box-shadow:0 14px 32px rgba(255,107,44,.28)}
.btn-main:active{transform:translateY(0)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.3);
  color:var(--text);font-weight:600;font-size:15px;white-space:nowrap;
  backdrop-filter:blur(10px);
  transition:all var(--dur) var(--ease);
}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}

/* ---------- Mobile drawer ---------- */
.mobile-drawer{
  width:min(360px,88vw);background:rgba(9,11,12,.97);
  backdrop-filter:blur(20px);border-left:1px solid var(--line);color:var(--text);
}
.mobile-drawer .offcanvas-header{
  padding:18px 22px;border-bottom:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
}
.drawer-nav{display:flex;flex-direction:column;margin-top:10px}
.drawer-nav a{
  position:relative;padding:15px 0 15px 20px;font-size:20px;font-weight:600;
  color:var(--muted);border-bottom:1px solid var(--line);
}
.drawer-nav a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:4px;height:20px;border-radius:2px;background:var(--primary);opacity:0;
  transition:opacity var(--dur) var(--ease);
}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--text)}
.drawer-nav a.active::before{opacity:1}
.drawer-foot{margin-top:24px;display:flex;flex-direction:column;gap:12px}

/* ---------- Page hero (narrow) ---------- */
.page-hero{
  position:relative;overflow:hidden;
  min-height:min(52vh,460px);
  display:flex;align-items:flex-end;
  background:#0E1112 url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(90deg,rgba(11,13,14,.95) 0%,rgba(11,13,14,.74) 48%,rgba(11,13,14,.36) 100%),
    linear-gradient(180deg,rgba(11,13,14,.72) 0%,rgba(11,13,14,.24) 42%,rgba(11,13,14,.97) 100%);
}
.page-hero .wrap{position:relative;z-index:2;padding-top:64px;padding-bottom:52px}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:var(--accent-soft);border:1px solid rgba(255,107,44,.4);
  color:#FFD2BC;font-size:13px;letter-spacing:.04em;margin-bottom:16px;
}
.hero-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--accent)}
.page-hero h1{
  font-size:clamp(30px,4.4vw,52px);font-weight:800;letter-spacing:-.02em;line-height:1.15;
  max-width:820px;
}
.page-hero h1 .brand-part{color:var(--primary);display:block;font-size:.62em;font-weight:700;letter-spacing:0;margin-top:8px}
.hero-sub{
  margin-top:16px;max-width:620px;color:var(--muted);font-size:16.5px;line-height:1.85;
}
.hero-stats{display:flex;flex-wrap:wrap;gap:28px;margin-top:26px}
.hero-stat{display:flex;align-items:baseline;gap:8px}
.hero-stat b{font-family:var(--font-num);font-size:24px;color:var(--lime);font-weight:600}
.hero-stat span{font-size:13px;color:var(--muted-2)}

/* ---------- Sections ---------- */
.section{padding:88px 0}
.section-tight{padding-top:36px}
@media (max-width:991px){.section{padding:72px 0}}
@media (max-width:767px){.section{padding:56px 0}}

.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px}
.sec-title{
  position:relative;padding-left:18px;
  font-size:clamp(24px,2.8vw,36px);font-weight:700;letter-spacing:-.02em;line-height:1.25;
}
.sec-title::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:2px;background:var(--primary);
}
.sec-index{
  display:block;font-family:var(--font-num);font-size:13px;letter-spacing:.2em;
  color:rgba(255,107,44,.72);margin-bottom:4px;
}
.sec-note{color:var(--muted);font-size:14px;max-width:420px;line-height:1.8}

/* ---------- Chip row ---------- */
.chip-row{
  display:flex;flex-wrap:wrap;gap:12px;
  padding:20px 0 24px;border-bottom:1px solid var(--line);
}
.chip{
  padding:9px 20px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  color:var(--muted);font-size:14px;
  transition:all var(--dur) var(--ease);
}
.chip:hover{color:var(--text);border-color:rgba(18,199,154,.5);transform:translateY(-2px)}
.chip.active{background:var(--primary);color:#04231C;font-weight:700;border-color:transparent}

/* ---------- Stream list ---------- */
.stream{display:flex;flex-direction:column;margin-top:8px}
.stream-row{
  display:grid;grid-template-columns:340px minmax(0,1fr);gap:30px;align-items:start;
  padding:34px 20px;margin:0 -20px;
  border-bottom:1px solid var(--line);
  transition:background var(--dur) var(--ease);
}
.stream-row:hover{background:rgba(255,255,255,.025)}
.stream-media{
  position:relative;border-radius:var(--r-img);overflow:hidden;
  aspect-ratio:16/10;background:var(--raise);border:1px solid var(--line);
}
.stream-media img{width:100%;height:100%;object-fit:cover;transition:transform 420ms var(--ease)}
.stream-row:hover .stream-media img{transform:scale(1.04)}
.badge{
  position:absolute;top:12px;left:12px;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:12px;line-height:1.6;
  background:rgba(11,13,14,.66);border:1px solid rgba(255,255,255,.2);
  color:var(--text);backdrop-filter:blur(10px);
}
.badge-accent{background:var(--accent-soft);border-color:rgba(255,107,44,.42);color:#FFD2BC}

.stream-body{min-width:0}
.stream-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--muted-2)}
.stream-meta .sep{width:1px;height:12px;background:var(--line-strong)}
.stream-title{font-size:22px;font-weight:600;line-height:1.45;margin:10px 0}
.stream-row:hover .stream-title{color:var(--primary)}
.stream-desc{color:var(--muted);font-size:15.5px;line-height:1.85;max-width:780px}
.stream-foot{display:flex;align-items:center;gap:20px;margin-top:18px;flex-wrap:wrap}
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);font-size:14px;font-weight:600;transition:gap var(--dur) var(--ease),color var(--dur) var(--ease);
}
.link-more:hover{gap:11px;color:var(--accent);text-decoration:underline}
.stream-tag{
  font-size:12.5px;color:var(--muted-2);
  padding:4px 12px;border-radius:var(--r-pill);border:1px solid var(--line);
}

/* ---------- Info cards ---------- */
.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.info-card{
  padding:30px 28px;border-radius:var(--r-card);
  background:var(--panel);border:1px solid var(--line);
  transition:all var(--dur) var(--ease);
}
.info-card:hover{transform:translateY(-4px);border-color:rgba(18,199,154,.4);box-shadow:var(--shadow-dark)}
.info-card .num{
  font-family:var(--font-num);font-size:34px;line-height:1;
  color:rgba(255,107,44,.5);margin-bottom:16px;display:block;
}
.info-card h3{font-size:20px;font-weight:600;margin-bottom:10px}
.info-card p{color:var(--muted);font-size:15px;line-height:1.85}
.info-card:hover .num{color:var(--accent)}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:24px;
  padding:56px;border:1px solid var(--line);
  background:linear-gradient(120deg,#101416 0%,#0B0D0E 100%);
  display:grid;grid-template-columns:1.15fr 1fr;gap:44px;align-items:center;
}
.cta-band::before{
  content:"";position:absolute;width:640px;height:640px;left:-180px;top:-340px;
  background:radial-gradient(circle,rgba(18,199,154,.22),transparent 66%);
  pointer-events:none;
}
.cta-copy{position:relative;z-index:2}
.cta-copy h2{font-size:clamp(24px,2.6vw,34px);font-weight:700;letter-spacing:-.02em;line-height:1.3}
.cta-copy p{color:var(--muted);font-size:15.5px;margin-top:14px;max-width:520px}
.cta-form{position:relative;z-index:2;display:flex;flex-direction:column;gap:12px}
.cta-field{display:flex;gap:12px;flex-wrap:wrap}
.cta-field input{
  flex:1 1 220px;min-width:0;
  padding:14px 18px;border-radius:var(--r-btn);
  background:rgba(255,255,255,.05);border:1px solid var(--line-strong);
  color:var(--text);font-size:15px;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.cta-field input::placeholder{color:var(--muted-2)}
.cta-field input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(18,199,154,.25)}
.cta-tip{font-size:13px;color:var(--muted-2)}
.cta-tip.is-ok{color:var(--primary)}

/* ---------- Pager ---------- */
.pager{display:flex;justify-content:center;align-items:center;gap:10px;padding:52px 0 4px;flex-wrap:wrap}
.pager a,.pager span.pg{
  width:40px;height:40px;display:grid;place-items:center;border-radius:12px;
  border:1px solid var(--line);color:var(--muted);
  font-family:var(--font-num);font-size:14px;
  transition:all var(--dur) var(--ease);
}
.pager a:hover{border-color:var(--primary);color:var(--text);transform:translateY(-2px)}
.pager .current{background:var(--primary);color:#04231C;border-color:transparent;font-weight:700}
.pager .pager-gap{color:var(--muted-2);border:0;width:auto}

/* ---------- Footer ---------- */
.site-footer{background:#090B0C;border-top:1px solid var(--line);margin-top:96px;padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;font-weight:700;font-size:17px}
.footer-desc{color:var(--muted);font-size:14.5px;line-height:1.85;max-width:340px}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:16px;color:var(--text)}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col span{font-size:14px;color:var(--muted)}
.footer-col a:hover{color:var(--primary);text-decoration:underline}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  padding:20px 0 28px;border-top:1px solid var(--line);
  font-size:13px;color:var(--muted-2);
}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .stream-row{grid-template-columns:290px minmax(0,1fr);gap:26px}
  .info-grid{gap:18px}
}
@media (max-width:991px){
  .main-nav{display:none}
  .burger{display:grid}
  .header-cta{display:none}
  .stream-row{grid-template-columns:260px minmax(0,1fr);gap:22px;padding:28px 16px;margin:0 -16px}
  .info-grid{grid-template-columns:1fr 1fr}
  .cta-band{grid-template-columns:1fr;padding:40px 32px;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  body{font-size:16px}
  .page-hero{min-height:auto;padding-top:24px}
  .page-hero .wrap{padding-top:40px;padding-bottom:40px}
  .hero-stats{gap:20px;margin-top:20px}
  .stream-row{grid-template-columns:1fr;gap:18px;padding:26px 0;margin:0}
  .stream-media{aspect-ratio:16/9}
  .stream-title{font-size:19px}
  .info-grid{grid-template-columns:1fr}
  .cta-band{padding:32px 22px;border-radius:18px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .pager a,.pager span.pg{width:36px;height:36px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .info-card:hover,.btn-main:hover,.btn-ghost:hover,.chip:hover{transform:none}
  .stream-row:hover .stream-media img{transform:none}
}

/* roulang page: category3 */
:root{
  --bg:#0B0D0E;
  --panel:#14181A;
  --float:#1D2225;
  --paper:#F6F5F1;
  --ink:#1A1D1C;
  --primary:#12C79A;
  --primary-deep:#0E9C79;
  --accent:#FF6B2C;
  --glow:#C9F55C;
  --text:#E8EBEA;
  --muted:#9AA3A1;
  --muted-2:#6E7775;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.18);
  --r-card:18px;
  --r-img:14px;
  --r-btn:999px;
  --r-btn-2:12px;
  --r-input:12px;
  --sh-dark:0 24px 60px rgba(0,0,0,.45);
  --sh-light:0 12px 32px rgba(20,24,25,.10);
  --t:240ms cubic-bezier(.22,.61,.36,1);
  --sec-y:120px;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Oswald","Archivo","Arial Narrow",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color var(--t);}
a:hover{color:var(--primary);}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;color:#fff;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}

.wrap{width:100%;max-width:1320px;margin:0 auto;padding:0 24px;}
@media (max-width:1399.98px){.wrap{max-width:1140px;}}
@media (max-width:767.98px){.wrap{padding:0 16px;}}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1040;
  background:rgba(11,13,14,.94);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid var(--line);
  transition:background var(--t),box-shadow var(--t);
}
.site-header.scrolled{box-shadow:0 12px 30px rgba(0,0,0,.42);}
.header-inner{height:72px;display:flex;align-items:center;gap:20px;transition:height var(--t);}
.site-header.scrolled .header-inner{height:64px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:#fff;font-size:18px;font-weight:700;letter-spacing:.01em;}
.logo:hover{color:#fff;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  color:#04241C;font-family:var(--font-num);font-weight:700;font-size:18px;line-height:1;
}
.brand-text{white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:26px;margin:0 auto;}
.main-nav a{
  position:relative;
  color:var(--muted);
  font-size:15px;
  padding:6px 0;
  white-space:nowrap;
  transition:color var(--t);
}
.main-nav a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--primary);border-radius:2px;transition:width var(--t);
}
.main-nav a:hover{color:#fff;}
.main-nav a:hover::after{width:100%;}
.main-nav a.active{color:#fff;font-weight:600;}
.main-nav a.active::before{
  content:"";position:absolute;left:-12px;top:50%;transform:translateY(-50%);
  width:6px;height:6px;border-radius:50%;background:var(--primary);
}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.icon-btn{
  width:40px;height:40px;border-radius:50%;
  display:grid;place-items:center;
  background:rgba(255,255,255,.06);
  border:1px solid var(--line);
  color:var(--text);cursor:pointer;
  transition:border-color var(--t),color var(--t),background var(--t);
}
.icon-btn:hover{border-color:rgba(18,199,154,.6);color:var(--primary);background:rgba(18,199,154,.10);}
.hamburger{display:none;}
.hamburger .bar{width:18px;height:2px;background:currentColor;border-radius:2px;display:block;}
.hamburger .bar+.bar{margin-top:4px;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);
  padding:12px 26px;
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;
  cursor:pointer;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
}
.btn-primary{background:var(--primary);color:#04241C;box-shadow:0 10px 26px rgba(18,199,154,.22);}
.btn-primary:hover,.btn-primary:focus-visible{background:var(--accent);color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(255,107,44,.26);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{border-color:rgba(255,255,255,.3);color:#fff;background:rgba(255,255,255,.04);}
.btn-ghost:hover,.btn-ghost:focus-visible{border-color:var(--primary);color:var(--primary);background:rgba(18,199,154,.10);}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-block{width:100%;}
.link-more{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--primary);}
.link-more i{transition:transform var(--t);}
.link-more:hover i{transform:translateX(4px);}
.link-more:hover{text-decoration:underline;}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  padding:104px 0 84px;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  overflow:hidden;
  isolation:isolate;
}
.page-hero::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:
    linear-gradient(100deg,rgba(6,8,9,.94) 0%,rgba(9,12,13,.78) 46%,rgba(11,13,14,.38) 100%),
    linear-gradient(180deg,rgba(11,13,14,.35) 0%,rgba(11,13,14,.96) 100%);
}
.breadcrumb-line{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--muted-2);margin-bottom:22px;}
.breadcrumb-line a{color:var(--muted);}
.breadcrumb-line a:hover{color:var(--primary);}
.breadcrumb-line .sep{opacity:.5;}
.breadcrumb-line .current{color:var(--primary);}
.hero-inner{max-width:760px;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-btn);
  background:rgba(255,107,44,.14);
  border:1px solid rgba(255,107,44,.4);
  color:#FFB48C;font-size:13px;font-weight:600;
  margin-bottom:20px;
}
.hero-tag .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);}
.page-hero h1{
  font-size:clamp(34px,5vw,62px);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.15;
  margin-bottom:18px;
}
.page-hero h1 .brand-tail{color:var(--primary);}
.hero-sub{font-size:clamp(16px,1.5vw,19px);color:#D3D9D7;font-weight:600;margin-bottom:14px;}
.hero-desc{font-size:16px;color:var(--muted);max-width:640px;line-height:1.9;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:40px;margin-top:46px;padding-top:26px;border-top:1px solid var(--line);}
.hero-stat .num{font-family:var(--font-num);font-size:30px;font-weight:600;color:var(--glow);line-height:1;}
.hero-stat .label{display:block;font-size:13px;color:var(--muted);margin-top:6px;}

/* ---------- Section base ---------- */
.section{padding:var(--sec-y) 0;}
.section-tight{padding:72px 0;}
.section-head{margin-bottom:46px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-num);font-size:14px;letter-spacing:.16em;color:rgba(255,107,44,.85);
  margin-bottom:14px;text-transform:uppercase;
}
.section-head h2{
  position:relative;
  padding-left:18px;
  font-size:clamp(26px,3vw,40px);
  font-weight:700;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;border-radius:2px;background:var(--primary);
}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px;max-width:760px;}
.section-head.center{text-align:center;}
.section-head.center h2{padding-left:0;}
.section-head.center h2::before{display:none;}
.section-head.center p{margin-left:auto;margin-right:auto;}

/* ---------- Chips ---------- */
.chip-section{padding:28px 0 0;}
.chip-row{display:flex;flex-wrap:wrap;gap:12px;}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 20px;border-radius:var(--r-btn);
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  color:var(--muted);font-size:14px;font-weight:500;
  cursor:pointer;
  transition:all var(--t);
}
.chip:hover{border-color:rgba(18,199,154,.55);color:#fff;background:rgba(18,199,154,.10);}
.chip.active{background:var(--primary);border-color:var(--primary);color:#04241C;font-weight:600;}
.chip .count{font-family:var(--font-num);font-size:13px;opacity:.75;}

/* ---------- Split blocks ---------- */
.split-block{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center;}
.split-block+.split-block{margin-top:96px;padding-top:96px;border-top:1px solid var(--line);}
.split-block.reverse{grid-template-columns:7fr 5fr;}
.split-block.reverse .split-body{order:2;}
.split-block.reverse .split-media{order:1;}
.split-body .index{
  font-family:var(--font-num);font-size:15px;letter-spacing:.14em;color:rgba(18,199,154,.85);
  display:block;margin-bottom:12px;
}
.split-body h3{font-size:clamp(22px,2.2vw,30px);font-weight:700;margin-bottom:16px;line-height:1.3;}
.split-body p{color:var(--muted);font-size:16px;line-height:1.9;}
.point-list{margin-top:22px;display:grid;gap:14px;}
.point-list li{position:relative;padding-left:20px;color:#CFD6D4;font-size:15px;line-height:1.8;}
.point-list li::before{
  content:"";position:absolute;left:0;top:.62em;width:6px;height:6px;border-radius:2px;background:var(--primary);
}
.split-media{position:relative;}
.split-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-img);
  border:1px solid var(--line);
  background:var(--panel);
}
.float-card{
  position:absolute;right:-16px;bottom:-18px;
  background:rgba(20,24,26,.94);
  border:1px solid rgba(18,199,154,.35);
  border-radius:14px;
  padding:16px 20px;
  box-shadow:var(--sh-dark);
  backdrop-filter:blur(10px);
}
.float-card .num{font-family:var(--font-num);font-size:24px;color:var(--glow);line-height:1;}
.float-card .label{display:block;font-size:13px;color:var(--muted);margin-top:6px;}

/* ---------- Steps ---------- */
.steps-section{background:var(--panel);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.step-card{
  height:100%;
  background:var(--float);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px 24px;
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.step-card:hover{transform:translateY(-4px);border-color:rgba(18,199,154,.4);box-shadow:var(--sh-dark);}
.step-card .step-num{
  font-family:var(--font-num);font-size:34px;font-weight:600;
  color:rgba(255,107,44,.55);line-height:1;margin-bottom:16px;
}
.step-card h3{font-size:19px;margin-bottom:10px;}
.step-card p{color:var(--muted);font-size:15px;line-height:1.85;}

/* ---------- CTA banner ---------- */
.cta-banner{
  position:relative;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:
    radial-gradient(680px 320px at 14% 0%,rgba(18,199,154,.20),transparent 68%),
    radial-gradient(520px 260px at 92% 100%,rgba(255,107,44,.12),transparent 62%),
    var(--panel);
  padding:56px;
  overflow:hidden;
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:48px;
  align-items:center;
}
.cta-banner h2{font-size:clamp(24px,2.6vw,34px);margin-bottom:14px;}
.cta-banner p{color:var(--muted);font-size:16px;max-width:560px;}
.cta-form{display:flex;flex-direction:column;gap:14px;}
.field{
  width:100%;padding:14px 18px;
  border-radius:var(--r-input);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line-strong);
  color:#fff;font-size:15px;font-family:inherit;
  transition:border-color var(--t),box-shadow var(--t),background var(--t);
}
.field::placeholder{color:var(--muted-2);}
.field:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(18,199,154,.18);background:rgba(255,255,255,.08);}
.form-note{font-size:13px;color:var(--muted-2);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto;}
.accordion{--bs-accordion-bg:transparent;--bs-accordion-border-width:0;--bs-accordion-border-radius:0;}
.accordion-item{background:transparent;border:0;border-top:1px solid var(--line);}
.accordion-item:last-child{border-bottom:1px solid var(--line);}
.accordion-button{
  background:transparent;
  color:var(--text);
  font-size:17px;font-weight:600;
  padding:22px 4px;
  box-shadow:none;
  border-radius:0;
}
.accordion-button:not(.collapsed){color:var(--primary);background:rgba(255,255,255,.03);box-shadow:none;}
.accordion-button:focus{box-shadow:none;border-color:transparent;outline:2px solid rgba(18,199,154,.5);outline-offset:-2px;}
.accordion-button::after{
  background-image:none;
  content:"+";
  font-family:var(--font-num);
  font-size:22px;line-height:1;
  color:var(--primary);
  width:auto;height:auto;
  display:grid;place-items:center;
  transition:transform var(--t);
  margin-left:auto;
}
.accordion-button:not(.collapsed)::after{transform:rotate(45deg);}
.accordion-body{padding:0 4px 24px;color:var(--muted);font-size:15px;line-height:1.9;background:transparent;}

/* ---------- Footer ---------- */
.site-footer{background:#08090A;border-top:1px solid var(--line);padding:68px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:44px;padding-bottom:52px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;font-size:18px;font-weight:700;color:#fff;}
.footer-desc{color:var(--muted);font-size:14px;line-height:1.9;max-width:340px;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:18px;font-weight:600;}
.footer-col ul{display:grid;gap:12px;}
.footer-col a,.footer-col span{color:var(--muted);font-size:14px;}
.footer-col a:hover{color:var(--primary);}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--muted-2);
}

/* ---------- Offcanvas ---------- */
.offcanvas.drawer{
  background:rgba(11,13,14,.97);
  backdrop-filter:blur(18px) saturate(140%);
  color:var(--text);
  border-left:1px solid var(--line);
  width:min(88vw,380px);
}
.drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 22px;}
.drawer .btn-close{filter:invert(1) grayscale(1);opacity:.7;}
.drawer .offcanvas-body{padding:22px;}
.drawer-nav{display:grid;gap:6px;margin-bottom:28px;}
.drawer-nav a{
  position:relative;
  display:block;
  padding:14px 0 14px 16px;
  font-size:20px;font-weight:600;
  color:var(--muted);
  border-bottom:1px solid var(--line);
}
.drawer-nav a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:20px;border-radius:2px;background:var(--line-strong);
  transition:background var(--t);
}
.drawer-nav a:hover,.drawer-nav a.active{color:#fff;}
.drawer-nav a.active::before,.drawer-nav a:hover::before{background:var(--primary);}
.drawer-note{font-size:13px;color:var(--muted-2);line-height:1.9;}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 600ms cubic-bezier(.22,.61,.36,1),transform 600ms cubic-bezier(.22,.61,.36,1);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- Responsive ---------- */
@media (max-width:1199.98px){
  :root{--sec-y:96px;}
  .split-block,.split-block.reverse{gap:36px;}
}
@media (max-width:991.98px){
  :root{--sec-y:88px;}
  .main-nav{display:none;}
  .hamburger{display:grid;}
  .header-inner{gap:14px;}
  .split-block,.split-block.reverse{grid-template-columns:1fr;gap:28px;}
  .split-block.reverse .split-body{order:1;}
  .split-block.reverse .split-media{order:2;}
  .split-block+.split-block{margin-top:64px;padding-top:64px;}
  .cta-banner{grid-template-columns:1fr;padding:40px 32px;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .float-card{right:12px;bottom:12px;}
}
@media (max-width:767.98px){
  :root{--sec-y:72px;}
  body{font-size:15px;}
  .page-hero{padding:72px 0 60px;}
  .hero-stats{gap:26px;}
  .hero-stat .num{font-size:24px;}
  .section-head{margin-bottom:32px;}
  .cta-banner{padding:32px 22px;}
  .accordion-button{font-size:16px;padding:18px 2px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:575.98px){
  .logo{font-size:16px;}
  .brand-mark{width:30px;height:30px;font-size:16px;}
  .hero-actions .btn{width:100%;}
  .chip{padding:8px 16px;font-size:13px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}