/* roulang page: index */
:root{
  --bg:#0A0E12;
  --bg-soft:#12171D;
  --surface:rgba(255,255,255,.045);
  --surface-2:rgba(255,255,255,.07);
  --line:rgba(255,255,255,.10);
  --text:#E8EEF2;
  --text-muted:#9AA7B2;
  --primary:#17E0A5;
  --primary-2:#0FB98A;
  --accent:#FF8A3D;
  --info:#5AA9FF;
  --danger:#FF5C6C;
  --radius:18px;
  --radius-sm:12px;
  --radius-img:14px;
  --shadow:0 18px 40px rgba(0,0,0,.45);
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1240px;
  --glow:0 0 0 1px rgba(23,224,165,.35),0 12px 32px rgba(23,224,165,.22);
}
*,
*::before,
*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(680px 380px at 12% -6%,rgba(23,224,165,.10),transparent 62%),
    radial-gradient(620px 420px at 92% 4%,rgba(255,138,61,.07),transparent 60%),
    repeating-linear-gradient(90deg,rgba(255,255,255,.022) 0 1px,transparent 1px 92px);
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color 220ms var(--ease),text-decoration-color 220ms var(--ease);}
a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:4px;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}
::selection{background:rgba(23,224,165,.28);}
.rl-container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}
.section{padding:clamp(56px,7vw,104px) 0;position:relative;z-index:1;}
.section--soft{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12.5px;
  letter-spacing:.06em;
  color:var(--primary);
  border:1px solid rgba(23,224,165,.30);
  background:rgba(23,224,165,.10);
  padding:6px 14px;
  border-radius:999px;
  margin-bottom:18px;
}
.eyebrow i{font-size:11px;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{
  font-size:clamp(24px,2.6vw,32px);
  line-height:1.25;
  font-weight:700;
  letter-spacing:-.01em;
}
.section-head p{color:var(--text-muted);margin-top:14px;font-size:16px;line-height:1.85;}
.text-muted-rl{color:var(--text-muted);}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1040;
  background:rgba(10,14,18,.72);
  border-bottom:1px solid transparent;
  transition:background 220ms var(--ease),border-color 220ms var(--ease),backdrop-filter 220ms var(--ease);
}
.site-header.is-scrolled{
  background:rgba(10,14,18,.82);
  border-bottom-color:var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  min-height:76px;
}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;flex-shrink:0;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:38px;height:38px;
  border-radius:12px;
  background:linear-gradient(140deg,rgba(23,224,165,.95),rgba(15,185,138,.55));
  display:grid;place-items:center;
  box-shadow:0 8px 22px rgba(23,224,165,.24);
  flex-shrink:0;
}
.brand-mark span{
  display:block;width:18px;height:18px;border-radius:5px;
  background:
    repeating-linear-gradient(0deg,rgba(6,20,16,.85) 0 2px,transparent 2px 5px),
    repeating-linear-gradient(90deg,rgba(6,20,16,.85) 0 2px,transparent 2px 5px);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text b{font-size:16.5px;font-weight:700;color:var(--text);letter-spacing:.01em;}
.brand-text small{font-size:11.5px;color:var(--text-muted);letter-spacing:.08em;}
.nav-links{display:flex;align-items:center;gap:30px;}
.nav-link-item{
  position:relative;
  color:var(--text-muted);
  font-size:15px;
  font-weight:500;
  padding:8px 2px;
  text-decoration:none;
  transition:color 220ms var(--ease);
}
.nav-link-item:hover{color:var(--text);text-decoration:none;}
.nav-link-item::after{
  content:"";
  position:absolute;
  left:50%;bottom:0;
  width:0;height:2px;
  border-radius:2px;
  background:var(--primary);
  transform:translateX(-50%);
  box-shadow:0 0 10px rgba(23,224,165,.8);
  transition:width 220ms var(--ease);
}
.nav-link-item:hover::after{width:60%;}
.nav-link-item.active{color:var(--text);}
.nav-link-item.active::after{width:70%;}
.nav-right{display:flex;align-items:center;gap:16px;}
.btn-rl{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  border:none;
  cursor:pointer;
  font-size:15px;
  font-weight:600;
  border-radius:999px;
  padding:12px 26px;
  min-height:44px;
  text-decoration:none;
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),background 220ms var(--ease),border-color 220ms var(--ease),color 220ms var(--ease);
}
.btn-rl:hover{text-decoration:none;transform:translateY(-2px);}
.btn-primary-rl{
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  color:#05231A;
  box-shadow:var(--glow);
}
.btn-primary-rl:hover{box-shadow:0 0 0 1px rgba(23,224,165,.5),0 16px 38px rgba(23,224,165,.34);color:#05231A;}
.btn-ghost-rl{
  background:var(--surface);
  color:var(--text);
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
}
.btn-ghost-rl:hover{border-color:rgba(23,224,165,.45);color:var(--text);background:var(--surface-2);}
.btn-accent-rl{
  background:transparent;
  color:var(--accent);
  border:1px solid rgba(255,138,61,.45);
  border-radius:var(--radius-sm);
}
.btn-accent-rl:hover{background:rgba(255,138,61,.12);color:var(--accent);}
.nav-toggle{
  display:none;
  width:46px;height:46px;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--text);
  align-items:center;
  justify-content:center;
  font-size:18px;
}
.offcanvas.rl-drawer{background:var(--bg-soft);color:var(--text);width:320px;border-right:1px solid var(--line);}
.rl-drawer .drawer-head{display:flex;align-items:center;justify-content:space-between;padding:22px 22px 16px;border-bottom:1px solid var(--line);}
.rl-drawer .drawer-body{padding:18px 22px 30px;display:flex;flex-direction:column;gap:6px;}
.rl-drawer .drawer-body a.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 14px;border-radius:12px;
  color:var(--text-muted);font-size:15.5px;font-weight:500;
  border:1px solid transparent;
}
.rl-drawer .drawer-body a.drawer-link:hover,
.rl-drawer .drawer-body a.drawer-link.active{
  color:var(--text);background:var(--surface);border-color:var(--line);text-decoration:none;
}
.rl-drawer .drawer-foot{margin-top:20px;padding-top:20px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:14px;}
.drawer-note{font-size:13.5px;color:var(--text-muted);line-height:1.7;}
.btn-close-drawer{background:none;border:none;color:var(--text-muted);font-size:20px;width:40px;height:40px;border-radius:10px;}
.btn-close-drawer:hover{color:var(--text);background:var(--surface);}

/* ---------- hero ---------- */
.hero{
  position:relative;
  padding:clamp(48px,6vw,86px) 0 clamp(56px,7vw,96px);
  background-image:
    linear-gradient(180deg,rgba(10,14,18,.78) 0%,rgba(10,14,18,.88) 55%,rgba(10,14,18,.96) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.hero::after{
  content:"";
  position:absolute;
  right:-160px;top:-140px;
  width:520px;height:520px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(23,224,165,.16),transparent 68%);
  pointer-events:none;
}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:56px;
  align-items:center;
}
.hero h1{
  font-size:clamp(30px,4.2vw,46px);
  line-height:1.16;
  font-weight:700;
  letter-spacing:-.015em;
  margin-bottom:22px;
}
.hero h1 em{font-style:normal;color:var(--primary);}
.hero-sub{
  font-size:17px;
  color:var(--text-muted);
  max-width:600px;
  line-height:1.85;
  margin-bottom:32px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:44px;}
.stat-strip{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:18px;
  padding-top:26px;
  border-top:1px solid var(--line);
}
.stat-item .stat-num{
  font-size:26px;
  font-weight:700;
  color:var(--text);
  letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;
}
.stat-item .stat-num span{font-size:14px;font-weight:600;color:var(--primary);margin-left:3px;}
.stat-item .stat-label{font-size:13px;color:var(--text-muted);margin-top:4px;letter-spacing:.02em;}
.hero-visual{position:relative;}
.hero-shot{
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--surface);
  box-shadow:var(--shadow);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
}
.hero-shot img{width:100%;height:auto;aspect-ratio:16/11;object-fit:cover;}
.hero-float{
  position:absolute;
  left:-18px;bottom:-22px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  background:rgba(18,23,29,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
  padding:14px 18px;
  display:flex;
  align-items:center;
  gap:12px;
}
.hero-float i{color:var(--primary);font-size:18px;}
.hero-float strong{display:block;font-size:14.5px;}
.hero-float span{font-size:12.5px;color:var(--text-muted);}

/* ---------- concept ---------- */
.concept-grid{
  display:grid;
  grid-template-columns:minmax(0,6fr) minmax(0,6fr);
  gap:56px;
  align-items:center;
}
.concept-media{
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.concept-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform 420ms var(--ease);}
.concept-media:hover img{transform:scale(1.03);}
.point-list{display:flex;flex-direction:column;gap:18px;margin-top:30px;}
.point-item{
  display:flex;
  gap:16px;
  padding:18px 20px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  background:var(--surface);
  transition:border-color 220ms var(--ease),transform 220ms var(--ease),background 220ms var(--ease);
}
.point-item:hover{border-color:rgba(23,224,165,.42);transform:translateY(-3px);background:var(--surface-2);}
.point-item i{color:var(--primary);font-size:17px;margin-top:5px;}
.point-item h3{font-size:17px;font-weight:600;margin-bottom:6px;}
.point-item p{font-size:14.5px;color:var(--text-muted);line-height:1.75;}

/* ---------- category cards ---------- */
.cat-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.cat-card{
  display:flex;
  flex-direction:column;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:var(--surface);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform 220ms var(--ease),border-color 220ms var(--ease),box-shadow 220ms var(--ease);
}
.cat-card:hover{transform:translateY(-3px);border-color:rgba(23,224,165,.42);box-shadow:0 22px 48px rgba(0,0,0,.55);text-decoration:none;}
.cat-card .thumb{position:relative;overflow:hidden;margin:12px 12px 0;border-radius:var(--radius-img);}
.cat-card .thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform 420ms var(--ease);}
.cat-card:hover .thumb img{transform:scale(1.03);}
.cat-card .body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.badge-rl{
  display:inline-flex;
  align-items:center;
  align-self:flex-start;
  gap:6px;
  font-size:12.5px;
  letter-spacing:.06em;
  padding:4px 12px;
  border-radius:999px;
  border:1px solid rgba(23,224,165,.34);
  background:rgba(23,224,165,.10);
  color:var(--primary);
}
.badge-rl.accent{border-color:rgba(255,138,61,.4);background:rgba(255,138,61,.1);color:var(--accent);}
.cat-card h3{font-size:19px;font-weight:700;line-height:1.35;color:var(--text);}
.cat-card p{font-size:14.5px;color:var(--text-muted);line-height:1.75;}
.cat-card .meta-row{
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--text-muted);
}
.cat-card .meta-row i{color:var(--primary);font-size:12px;}

/* ---------- pick (asymmetric) ---------- */
.pick-grid{
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:26px;
}
.pick-main{
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:var(--surface);
  overflow:hidden;
  box-shadow:var(--shadow);
  display:flex;
  flex-direction:column;
  transition:transform 220ms var(--ease),border-color 220ms var(--ease);
}
.pick-main:hover{transform:translateY(-3px);border-color:rgba(23,224,165,.42);text-decoration:none;}
.pick-main img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.pick-main .body{padding:26px 28px 28px;display:flex;flex-direction:column;gap:14px;}
.pick-main h3{font-size:23px;font-weight:700;line-height:1.35;color:var(--text);}
.pick-main p{color:var(--text-muted);font-size:15px;}
.pick-side{display:flex;flex-direction:column;gap:26px;}
.pick-mini{
  flex:1;
  display:flex;
  gap:16px;
  align-items:center;
  padding:16px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:var(--surface);
  box-shadow:var(--shadow);
  transition:transform 220ms var(--ease),border-color 220ms var(--ease);
}
.pick-mini:hover{transform:translateY(-3px);border-color:rgba(23,224,165,.42);text-decoration:none;}
.pick-mini .mini-thumb{
  width:120px;
  flex-shrink:0;
  border-radius:var(--radius-img);
  overflow:hidden;
}
.pick-mini .mini-thumb img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform 420ms var(--ease);}
.pick-mini:hover .mini-thumb img{transform:scale(1.03);}
.pick-mini h3{font-size:16.5px;font-weight:600;line-height:1.4;color:var(--text);margin-bottom:6px;}
.pick-mini p{font-size:13.5px;color:var(--text-muted);line-height:1.7;}

/* ---------- feed list ---------- */
.feed-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:36px;
  flex-wrap:wrap;
}
.feed-list{display:flex;flex-direction:column;gap:14px;}
.feed-item{
  display:grid;
  grid-template-columns:130px minmax(0,1fr) 170px;
  gap:24px;
  align-items:center;
  padding:22px 26px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:var(--surface);
  transition:transform 220ms var(--ease),border-color 220ms var(--ease),background 220ms var(--ease);
}
.feed-item:hover{transform:translateY(-3px);border-color:rgba(23,224,165,.42);background:var(--surface-2);}
.feed-item .feed-cat{font-size:13px;color:var(--primary);letter-spacing:.04em;display:flex;align-items:center;gap:8px;}
.feed-item .feed-cat i{font-size:11px;}
.feed-item h3{font-size:18px;font-weight:600;line-height:1.4;margin:8px 0 8px;}
.feed-item h3 a{color:var(--text);}
.feed-item h3 a:hover{color:var(--primary);text-decoration:none;}
.feed-item p{font-size:14.5px;color:var(--text-muted);line-height:1.75;}
.feed-item .feed-time{
  text-align:right;
  font-size:13px;
  color:var(--text-muted);
  font-variant-numeric:tabular-nums;
}
.feed-item.featured{
  background:linear-gradient(120deg,rgba(23,224,165,.09),rgba(255,255,255,.035));
  border-color:rgba(23,224,165,.30);
}
.feed-empty{
  border:1px dashed var(--line);
  border-radius:var(--radius);
  background:var(--surface);
  padding:52px 28px;
  text-align:center;
}
.feed-empty i{font-size:30px;color:var(--primary);opacity:.8;}
.feed-empty p{margin-top:14px;color:var(--text-muted);font-size:15px;}

/* ---------- trust ---------- */
.trust-band{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.trust-card{
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:rgba(255,255,255,.055);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  padding:28px 26px;
  box-shadow:var(--shadow);
  transition:transform 220ms var(--ease),border-color 220ms var(--ease);
}
.trust-card:hover{transform:translateY(-3px);border-color:rgba(23,224,165,.36);}
.trust-card .t-num{
  font-size:32px;
  font-weight:700;
  letter-spacing:-.02em;
  color:var(--primary);
  font-variant-numeric:tabular-nums;
}
.trust-card h3{font-size:17px;font-weight:600;margin:10px 0 8px;}
.trust-card p{font-size:14px;color:var(--text-muted);line-height:1.75;}
.trust-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.tag-rl{
  font-size:12.5px;
  letter-spacing:.06em;
  padding:6px 14px;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--text-muted);
}

/* ---------- faq ---------- */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-list{
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:var(--surface);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  box-shadow:var(--shadow);
  overflow:hidden;
}
.faq-item + .faq-item{border-top:1px solid var(--line);}
.faq-btn{
  width:100%;
  background:none;
  border:none;
  text-align:left;
  color:var(--text);
  font-size:16.5px;
  font-weight:600;
  padding:22px 26px 22px 30px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  min-height:44px;
  position:relative;
  transition:background 220ms var(--ease),color 220ms var(--ease);
}
.faq-btn:hover{background:var(--surface-2);}
.faq-btn::before{
  content:"";
  position:absolute;
  left:0;top:14px;bottom:14px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:var(--primary);
  opacity:0;
  transition:opacity 220ms var(--ease);
}
.faq-btn[aria-expanded="true"]::before{opacity:1;}
.faq-btn[aria-expanded="true"]{color:var(--primary);}
.faq-btn i{color:var(--text-muted);font-size:14px;transition:transform 220ms var(--ease),color 220ms var(--ease);flex-shrink:0;}
.faq-btn[aria-expanded="true"] i{transform:rotate(135deg);color:var(--primary);}
.faq-a{
  padding:0 30px 24px;
  color:var(--text-muted);
  font-size:15px;
  line-height:1.85;
}

/* ---------- cta band ---------- */
.cta-band{
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:linear-gradient(120deg,rgba(23,224,165,.12),rgba(255,138,61,.07) 70%,rgba(255,255,255,.03));
  padding:clamp(34px,4vw,54px);
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:36px;
  align-items:center;
  box-shadow:var(--shadow);
}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);line-height:1.3;font-weight:700;}
.cta-band p{color:var(--text-muted);margin-top:14px;font-size:15.5px;}
.subscribe-form{display:flex;gap:12px;flex-wrap:wrap;}
.subscribe-form input{
  flex:1 1 200px;
  min-height:48px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  background:rgba(10,14,18,.6);
  color:var(--text);
  padding:0 18px;
  font-size:15px;
  transition:border-color 220ms var(--ease),box-shadow 220ms var(--ease);
}
.subscribe-form input::placeholder{color:#6F7C87;}
.subscribe-form input:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 4px rgba(23,224,165,.16);
}
.form-hint{font-size:12.5px;color:var(--text-muted);margin-top:12px;letter-spacing:.02em;}
.form-msg{font-size:13px;color:var(--danger);margin-top:10px;min-height:18px;}

/* ---------- footer ---------- */
.site-footer{
  background:var(--bg-soft);
  border-top:1px solid var(--line);
  padding:clamp(48px,6vw,76px) 0 0;
  position:relative;
  z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,4fr) minmax(0,2.5fr) minmax(0,2.5fr) minmax(0,3fr);
  gap:40px;
  padding-bottom:52px;
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:10px;}
.footer-brand b{font-size:16px;}
.footer-col h3{
  font-size:14px;
  font-weight:600;
  letter-spacing:.06em;
  color:var(--text);
  margin-bottom:18px;
}
.footer-col p{font-size:14px;color:var(--text-muted);line-height:1.85;}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{color:var(--text-muted);font-size:14.5px;transition:color 220ms var(--ease),padding-left 220ms var(--ease);}
.footer-links a:hover{color:var(--primary);text-decoration:none;padding-left:4px;}
.footer-info{display:flex;flex-direction:column;gap:12px;font-size:14px;color:var(--text-muted);}
.footer-info span i{color:var(--primary);width:18px;margin-right:8px;font-size:13px;}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0 28px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
  font-size:13.5px;
  color:var(--text-muted);
}
.to-top{
  display:inline-flex;
  align-items:center;
  gap:8px;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--text-muted);
  padding:9px 18px;
  font-size:13px;
  cursor:pointer;
  transition:color 220ms var(--ease),border-color 220ms var(--ease),transform 220ms var(--ease);
}
.to-top:hover{color:var(--primary);border-color:rgba(23,224,165,.45);transform:translateY(-2px);}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .nav-links{gap:22px;}
  .pick-grid{grid-template-columns:minmax(0,6fr) minmax(0,6fr);}
}
@media (max-width:1024px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-right .btn-primary-rl{display:none;}
  .hero-grid{grid-template-columns:1fr;gap:44px;}
  .concept-grid{grid-template-columns:1fr;gap:40px;}
  .cat-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .pick-grid{grid-template-columns:1fr;}
  .trust-band{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-band{grid-template-columns:1fr;gap:26px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:34px;}
  .feed-item{grid-template-columns:110px minmax(0,1fr);}
  .feed-item .feed-time{grid-column:2;text-align:left;}
}
@media (max-width:767px){
  .rl-container{padding:0 20px;}
  .hero h1{font-size:29px;}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
  .cat-grid{grid-template-columns:1fr;}
  .pick-mini{flex-direction:column;align-items:flex-start;}
  .pick-mini .mini-thumb{width:100%;}
  .trust-band{grid-template-columns:1fr;}
  .faq-btn{font-size:15.5px;padding:20px 20px 20px 24px;}
  .faq-a{padding:0 24px 22px;}
  .feed-item{grid-template-columns:1fr;gap:12px;padding:20px;}
  .feed-item .feed-time{grid-column:1;}
  .hero-float{left:8px;bottom:-18px;padding:12px 14px;}
}
@media (max-width:519px){
  .footer-grid{grid-template-columns:1fr;}
  .brand-text small{display:none;}
  .hero-actions .btn-rl{width:100%;}
  .subscribe-form input{flex:1 1 100%;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}

/* roulang page: article */
:root{
  --bg:#0A0E12;
  --bg-soft:#12171D;
  --surface:rgba(255,255,255,.045);
  --surface-2:rgba(255,255,255,.07);
  --line:rgba(255,255,255,.10);
  --text:#E8EEF2;
  --text-muted:#9AA7B2;
  --primary:#17E0A5;
  --primary-2:#0FB98A;
  --accent:#FF8A3D;
  --danger:#FF5C6C;
  --radius-card:18px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow-card:0 18px 40px rgba(0,0,0,.45);
  --shadow-soft:0 8px 24px rgba(0,0,0,.35);
  --ease:cubic-bezier(.22,.61,.36,1);
  --tr:220ms var(--ease);
  --container:1240px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background:
    radial-gradient(900px 480px at 12% -8%,rgba(23,224,165,.10),transparent 62%),
    radial-gradient(760px 420px at 92% 4%,rgba(255,138,61,.07),transparent 60%);
  z-index:0;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:color var(--tr),text-decoration-color var(--tr)}
a:hover{color:var(--primary-2);text-decoration:underline;text-underline-offset:4px}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:-.01em}
p{margin:0 0 1.1em}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
::selection{background:rgba(23,224,165,.28);color:#fff}

.rl-container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;position:relative;z-index:1}
.section{padding:clamp(56px,7vw,104px) 0}
.section-soft{background:linear-gradient(180deg,rgba(255,255,255,.028),rgba(255,255,255,.01));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.06em;text-transform:uppercase;
  color:var(--primary);background:rgba(23,224,165,.10);
  border:1px solid rgba(23,224,165,.32);border-radius:var(--radius-pill);
  padding:5px 14px;margin-bottom:18px;
}
.eyebrow i{font-size:11px}
.section-title{font-size:clamp(24px,2.6vw,32px);line-height:1.25;margin-bottom:14px}
.section-lead{color:var(--text-muted);max-width:720px;font-size:15.5px}

/* ============ Header / Nav ============ */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(10,14,18,.82);
  border-bottom:1px solid var(--line);
  transition:background var(--tr),box-shadow var(--tr),backdrop-filter var(--tr);
}
.site-header.is-scrolled{
  background:rgba(10,14,18,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:0 12px 30px rgba(0,0,0,.45);
}
.header-inner{display:flex;align-items:center;gap:28px;min-height:74px}
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--text);text-decoration:none;flex:0 0 auto}
.brand:hover{color:var(--text);text-decoration:none}
.brand-mark{
  position:relative;width:34px;height:34px;border-radius:11px;
  background:linear-gradient(140deg,rgba(23,224,165,.28),rgba(23,224,165,.04));
  border:1px solid rgba(23,224,165,.45);
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 0 0 1px rgba(23,224,165,.08),0 8px 20px rgba(23,224,165,.14);
}
.brand-mark span{width:16px;height:16px;border-radius:4px;background:var(--primary);opacity:.9;box-shadow:0 0 14px rgba(23,224,165,.7)}
.brand-mark::after{
  content:"";position:absolute;inset:-6px;border-radius:16px;
  border:1px solid rgba(23,224,165,.18);
}
.brand-text{font-size:17.5px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto;flex-wrap:nowrap}
.nav-link-item{
  position:relative;color:var(--text-muted);font-size:14.5px;font-weight:500;
  padding:10px 14px;border-radius:var(--radius-pill);white-space:nowrap;
  transition:color var(--tr),background var(--tr);
}
.nav-link-item:hover{color:var(--text);background:var(--surface);text-decoration:none}
.nav-link-item.active{color:var(--text);background:var(--surface-2)}
.nav-link-item.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),rgba(23,224,165,0));
  box-shadow:0 0 12px rgba(23,224,165,.75);
}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:var(--surface);color:var(--text);
  align-items:center;justify-content:center;cursor:pointer;transition:background var(--tr),border-color var(--tr);
}
.nav-toggle:hover{background:var(--surface-2);border-color:rgba(23,224,165,.4)}

/* ============ Buttons ============ */
.btn-rl{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  font-size:14.5px;font-weight:600;line-height:1;
  padding:13px 24px;border-radius:var(--radius-pill);
  border:1px solid transparent;cursor:pointer;
  transition:transform var(--tr),box-shadow var(--tr),background var(--tr),color var(--tr),border-color var(--tr);
  text-decoration:none;min-height:44px;
}
.btn-rl:hover{text-decoration:none;transform:translateY(-1px)}
.btn-primary-rl{
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  color:#05201A;
  box-shadow:0 10px 26px rgba(23,224,165,.28);
}
.btn-primary-rl:hover{color:#04170F;box-shadow:0 14px 34px rgba(23,224,165,.42)}
.btn-ghost-rl{
  background:var(--surface);color:var(--text);border-color:var(--line);
}
.btn-ghost-rl:hover{color:var(--text);border-color:rgba(23,224,165,.45);background:var(--surface-2)}
.btn-accent-rl{
  background:linear-gradient(135deg,rgba(255,138,61,.95),rgba(255,138,61,.72));
  color:#2A1002;box-shadow:0 10px 24px rgba(255,138,61,.22);
}
.btn-accent-rl:hover{color:#2A1002;box-shadow:0 14px 30px rgba(255,138,61,.34)}
.btn-sm-rl{padding:10px 18px;font-size:13.5px}

/* ============ Offcanvas ============ */
.offcanvas.offcanvas-rl{background:var(--bg-soft);color:var(--text);border-right:1px solid var(--line);width:min(86vw,340px)}
.offcanvas-rl .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 22px}
.offcanvas-rl .offcanvas-body{padding:18px 22px 30px}
.drawer-nav{display:flex;flex-direction:column;gap:6px;margin-bottom:22px}
.drawer-nav a{
  color:var(--text);font-size:15.5px;font-weight:500;padding:13px 14px;border-radius:var(--radius-sm);
  border:1px solid transparent;transition:background var(--tr),border-color var(--tr),color var(--tr);
  display:flex;align-items:center;justify-content:space-between;min-height:44px;
}
.drawer-nav a:hover{background:var(--surface);border-color:var(--line);text-decoration:none}
.drawer-nav a.active{background:var(--surface-2);border-color:rgba(23,224,165,.35);color:var(--primary)}
.drawer-nav a i{font-size:12px;color:var(--text-muted)}
.drawer-meta{font-size:13px;color:var(--text-muted);border-top:1px solid var(--line);padding-top:18px;display:grid;gap:10px}
.drawer-meta span{display:flex;align-items:center;gap:9px}
.drawer-meta i{color:var(--primary)}

/* ============ Breadcrumb ============ */
.crumb-band{
  position:relative;padding:34px 0 26px;border-bottom:1px solid var(--line);
  background-image:linear-gradient(180deg,rgba(10,14,18,.86),rgba(10,14,18,.96)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.rl-breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:10px;font-size:13.5px;color:var(--text-muted);margin-bottom:20px}
.rl-breadcrumb a{color:var(--text-muted)}
.rl-breadcrumb a:hover{color:var(--primary);text-decoration:none}
.rl-breadcrumb .sep{opacity:.5}
.rl-breadcrumb .current{color:var(--text);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-badges{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:16px}
.badge-rl{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;letter-spacing:.06em;font-weight:600;
  padding:5px 13px;border-radius:var(--radius-pill);
  background:rgba(23,224,165,.10);border:1px solid rgba(23,224,165,.32);color:var(--primary);
}
.badge-accent{background:rgba(255,138,61,.12);border-color:rgba(255,138,61,.36);color:var(--accent)}
.article-h1{
  font-size:clamp(30px,4.2vw,46px);line-height:1.16;letter-spacing:-.02em;
  max-width:900px;margin-bottom:20px;
}
.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:20px;font-size:13.5px;color:var(--text-muted)}
.article-meta span{display:inline-flex;align-items:center;gap:8px}
.article-meta i{color:var(--primary);font-size:12.5px}
.article-meta .num{font-variant-numeric:tabular-nums;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;color:var(--text)}

/* ============ Article body ============ */
.article-wrap{padding:clamp(44px,5.4vw,76px) 0}
.article-shell{display:grid;grid-template-columns:minmax(0,1fr);gap:36px}
.article-body{
  max-width:760px;width:100%;margin:0 auto;
  font-size:16px;line-height:1.85;color:#DCE5EB;
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.1em}
.article-body h2{
  position:relative;font-size:clamp(21px,2.2vw,26px);line-height:1.4;
  margin:2.1em 0 .85em;padding-left:16px;color:var(--text);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;width:3px;height:1.1em;border-radius:3px;
  background:linear-gradient(180deg,var(--primary),rgba(23,224,165,.15));
}
.article-body h3{
  font-size:20px;line-height:1.35;margin:1.7em 0 .7em;padding-left:14px;position:relative;color:var(--text);
}
.article-body h3::before{
  content:"";position:absolute;left:0;top:.32em;width:3px;height:.9em;border-radius:3px;background:rgba(255,138,61,.8);
}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:2px}
.article-body ul li,.article-body ol li{position:relative;padding-left:22px;margin-bottom:.6em;color:#D3DDE4}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:8px;height:8px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 10px rgba(23,224,165,.5);
}
.article-body ol{counter-reset:rl-ol}
.article-body ol li{counter-increment:rl-ol;padding-left:30px}
.article-body ol li::before{
  content:counter(rl-ol);
  position:absolute;left:0;top:.18em;width:20px;height:20px;border-radius:6px;
  background:rgba(23,224,165,.12);border:1px solid rgba(23,224,165,.32);color:var(--primary);
  font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.article-body blockquote{
  margin:1.8em 0;padding:20px 24px;
  background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--primary);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:#CFD9E0;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:14px;margin:1.6em 0 .7em;box-shadow:var(--shadow-card)}
.article-body figure{margin:1.6em 0}
.article-body figcaption,.article-body .img-cap{font-size:13px;color:var(--text-muted);text-align:center;margin-bottom:1.6em}
.article-body a{color:var(--primary);text-underline-offset:4px}
.article-body a:hover{text-decoration:underline}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;margin:1.8em 0;font-size:14.5px;
  border:1px solid var(--line);border-radius:var(--radius-sm);overflow:hidden;display:block;overflow-x:auto;
}
.article-body table th,.article-body table td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap}
.article-body table th{background:var(--surface-2);color:var(--text);font-weight:600}
.article-body table tbody tr:nth-child(even){background:rgba(255,255,255,.022)}
.article-body table tbody tr:last-child td{border-bottom:none}
.article-body strong{color:#fff;font-weight:600}
.article-body hr{border:none;border-top:1px solid var(--line);margin:2.4em 0}

/* ============ Tags ============ */
.tag-zone{max-width:760px;margin:44px auto 0;padding-top:26px;border-top:1px solid var(--line)}
.tag-zone .tz-title{font-size:13px;letter-spacing:.06em;color:var(--text-muted);margin-bottom:14px;display:flex;align-items:center;gap:8px}
.tag-zone .tz-title i{color:var(--primary)}
.tag-list{display:flex;flex-wrap:wrap;gap:10px}
.tag-item{
  font-size:12.5px;letter-spacing:.04em;color:var(--text-muted);
  padding:7px 15px;border-radius:var(--radius-pill);
  background:var(--surface);border:1px solid var(--line);
  transition:color var(--tr),border-color var(--tr),background var(--tr);
}
.tag-item:hover{color:var(--primary);border-color:rgba(23,224,165,.42);background:rgba(23,224,165,.08);text-decoration:none}

/* ============ Empty state ============ */
.empty-state{
  max-width:760px;margin:0 auto;padding:56px 32px;text-align:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
}
.empty-state .icon-wrap{
  width:64px;height:64px;margin:0 auto 20px;border-radius:18px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(23,224,165,.10);border:1px solid rgba(23,224,165,.3);color:var(--primary);font-size:24px;
}
.empty-state h2{font-size:22px;margin-bottom:12px}
.empty-state p{color:var(--text-muted);margin-bottom:24px}

/* ============ Related ============ */
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:34px}
.rel-card{
  display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform var(--tr),border-color var(--tr),box-shadow var(--tr);
  height:100%;
}
.rel-card:hover{transform:translateY(-3px);border-color:rgba(23,224,165,.45);box-shadow:0 22px 48px rgba(0,0,0,.5);text-decoration:none}
.rel-thumb{position:relative;overflow:hidden;aspect-ratio:16/9;background:var(--bg-soft)}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease)}
.rel-card:hover .rel-thumb img{transform:scale(1.03)}
.rel-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,14,18,0) 40%,rgba(10,14,18,.7));}
.rel-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-body .badge-rl{align-self:flex-start}
.rel-body h3{font-size:17px;line-height:1.45;color:var(--text)}
.rel-card:hover h3{color:var(--primary)}
.rel-body p{font-size:14px;color:var(--text-muted);margin:0;line-height:1.7}
.rel-meta{font-size:12.5px;color:var(--text-muted);margin-top:auto;display:flex;align-items:center;gap:8px}

/* ============ Entry links ============ */
.entry-links{
  max-width:760px;margin:44px auto 0;padding:24px 26px;
  background:var(--surface-2);border:1px solid var(--line);border-radius:var(--radius-card);
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
}
.entry-links .txt{font-size:14.5px;color:var(--text-muted)}
.entry-links .txt b{color:var(--text);font-weight:600;display:block;margin-bottom:4px;font-size:16px}
.entry-links .acts{display:flex;gap:12px;flex-wrap:wrap}

/* ============ CTA band ============ */
.cta-band{
  position:relative;overflow:hidden;
  background-image:linear-gradient(120deg,rgba(10,14,18,.92),rgba(10,14,18,.72)),url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;
  padding:clamp(38px,4.6vw,60px) 0;
}
.cta-inner h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:10px}
.cta-inner p{color:var(--text-muted);margin:0;max-width:620px;font-size:15px}

/* ============ Footer ============ */
.site-footer{background:var(--bg-soft);border-top:1px solid var(--line);padding:clamp(48px,5.5vw,72px) 0 26px;position:relative;z-index:1}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:34px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-brand b{font-size:16.5px;color:var(--text);letter-spacing:.01em}
.footer-col p{color:var(--text-muted);font-size:14px;line-height:1.8;margin:0;max-width:330px}
.footer-col h3{font-size:14px;letter-spacing:.06em;color:var(--text);margin-bottom:16px;font-weight:600}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{color:var(--text-muted);font-size:14px;transition:color var(--tr),padding-left var(--tr)}
.footer-links a:hover{color:var(--primary);padding-left:4px;text-decoration:none}
.footer-info{display:flex;flex-direction:column;gap:12px}
.footer-info span{display:flex;align-items:flex-start;gap:10px;color:var(--text-muted);font-size:14px;line-height:1.7}
.footer-info i{color:var(--primary);margin-top:5px;font-size:13px}
.footer-bottom{
  margin-top:40px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13px;color:var(--text-muted);
}
.to-top{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--surface);border:1px solid var(--line);color:var(--text);
  border-radius:var(--radius-pill);padding:9px 18px;font-size:13px;cursor:pointer;
  transition:background var(--tr),border-color var(--tr),color var(--tr);
}
.to-top:hover{background:var(--surface-2);border-color:rgba(23,224,165,.4);color:var(--primary)}

/* ============ Responsive ============ */
@media (max-width:1199.98px){
  .header-inner{gap:18px}
  .nav-link-item{padding:9px 11px;font-size:14px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px}
  .footer-col:last-child{grid-column:1 / -1}
}
@media (max-width:991.98px){
  .nav-links,.header-actions .btn-rl{display:none}
  .nav-toggle{display:inline-flex}
  .header-inner{min-height:66px;justify-content:space-between}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
}
@media (max-width:767.98px){
  .rl-container{padding:0 20px}
  .article-h1{font-size:clamp(26px,7vw,32px)}
  .article-meta{gap:14px;font-size:13px}
  .article-body{font-size:15.5px;line-height:1.85}
  .entry-links{flex-direction:column;align-items:flex-start}
  .cta-inner{flex-direction:column;align-items:flex-start}
}
@media (max-width:575.98px){
  .rel-grid{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:1fr}
  .crumb-band{padding:26px 0 22px}
  .rl-breadcrumb .current{max-width:200px}
  .btn-rl{width:100%}
  .entry-links .acts{width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category1 */
:root{
  --bg:#0A0E12;
  --bg-soft:#12171D;
  --surface:rgba(255,255,255,.045);
  --surface-2:rgba(255,255,255,.07);
  --line:rgba(255,255,255,.10);
  --text:#E8EEF2;
  --text-muted:#9AA7B2;
  --primary:#17E0A5;
  --primary-2:#0FB98A;
  --accent:#FF8A3D;
  --danger:#FF6B7A;
  --radius:18px;
  --radius-sm:12px;
  --radius-xs:14px;
  --shadow:0 18px 40px rgba(0,0,0,.45);
  --ease:cubic-bezier(.22,.61,.36,1);
  --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:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(900px 600px at 12% -8%,rgba(23,224,165,.10),transparent 62%),
    radial-gradient(760px 520px at 92% 4%,rgba(255,138,61,.07),transparent 60%);
}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color .22s var(--ease),text-decoration-color .22s var(--ease)}
a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:4px}
button,input{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.01em;line-height:1.25}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1;letter-spacing:.02em}

.rl-container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;position:relative;z-index:1}
@media (min-width:768px){.rl-container{padding:0 24px}}
@media (min-width:1200px){.rl-container{padding:0 32px}}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(10,14,18,.72);
  border-bottom:1px solid transparent;
  transition:background .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(10,14,18,.86);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
  box-shadow:0 12px 30px rgba(0,0,0,.34);
}
.header-inner{display:flex;align-items:center;gap:26px;min-height:74px}
.site-brand{display:flex;align-items:center;gap:11px;color:var(--text);font-weight:700;font-size:17px;white-space:nowrap}
.site-brand:hover{color:var(--text);text-decoration:none}
.brand-mark{
  width:30px;height:30px;flex:0 0 30px;border-radius:9px;
  background:linear-gradient(150deg,var(--primary),var(--primary-2));
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 0 0 1px rgba(23,224,165,.35),0 10px 22px rgba(23,224,165,.20);
}
.brand-mark span{width:13px;height:2px;border-radius:2px;background:#062018;box-shadow:0 -4px 0 #062018,0 4px 0 #062018}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:auto}
.nav-link-item{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:0 2px;
  color:var(--text-muted);
  font-size:15px;
  font-weight:500;
  transition:color .22s var(--ease);
}
.nav-link-item:hover{color:var(--text);text-decoration:none}
.nav-link-item::after{
  content:"";
  position:absolute;
  left:50%;bottom:8px;
  width:0;height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--primary-2));
  transform:translateX(-50%);
  transition:width .22s var(--ease);
  box-shadow:0 0 12px rgba(23,224,165,.7);
}
.nav-link-item:hover::after{width:60%}
.nav-link-item.active{color:var(--text);font-weight:600}
.nav-link-item.active::after{width:100%}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:6px}
.rl-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;
  border-radius:999px;
  border:1px solid transparent;
  font-size:15px;font-weight:600;
  cursor:pointer;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
  white-space:nowrap;
}
.rl-btn:hover{text-decoration:none;transform:translateY(-2px)}
.rl-btn:active{transform:translateY(0)}
.rl-btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  color:#04211A;
  box-shadow:0 10px 26px rgba(23,224,165,.26);
}
.rl-btn-primary:hover{color:#04211A;box-shadow:0 14px 34px rgba(23,224,165,.42)}
.rl-btn-ghost{
  background:var(--surface);
  border-color:var(--line);
  color:var(--text);
}
.rl-btn-ghost:hover{color:var(--text);border-color:rgba(23,224,165,.5);background:var(--surface-2)}
.rl-btn-accent{
  background:linear-gradient(135deg,#FFA661,var(--accent));
  color:#2C1305;
  box-shadow:0 10px 26px rgba(255,138,61,.24);
}
.rl-btn-accent:hover{color:#2C1305;box-shadow:0 14px 34px rgba(255,138,61,.38)}
.rl-btn-sm{min-height:40px;padding:0 18px;font-size:14px}
.nav-toggle{
  display:none;
  width:46px;height:46px;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--text);
  align-items:center;justify-content:center;
  font-size:17px;
  transition:background .22s var(--ease),border-color .22s var(--ease);
}
.nav-toggle:hover{background:var(--surface-2);border-color:rgba(23,224,165,.45)}

/* ---------- 移动抽屉 ---------- */
.drawer-backdrop{
  position:fixed;inset:0;
  background:rgba(4,7,10,.68);
  -webkit-backdrop-filter:blur(4px);
  backdrop-filter:blur(4px);
  opacity:0;visibility:hidden;
  transition:opacity .28s var(--ease),visibility .28s var(--ease);
  z-index:1050;
}
.drawer-backdrop.is-open{opacity:1;visibility:visible}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;
  width:min(86vw,350px);
  background:linear-gradient(180deg,#111820,#0A0E12 70%);
  border-left:1px solid var(--line);
  transform:translateX(104%);
  transition:transform .32s var(--ease);
  z-index:1060;
  display:flex;flex-direction:column;
  padding:20px;
  overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:14px;padding-bottom:18px;border-bottom:1px solid var(--line)}
.drawer-close{
  width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:var(--surface);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--text);
}
.drawer-close:hover{background:var(--surface-2);border-color:rgba(23,224,165,.45)}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin:18px 0 auto}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 14px;
  border-radius:12px;
  color:var(--text-muted);
  font-size:15.5px;
  font-weight:500;
  transition:background .22s var(--ease),color .22s var(--ease);
}
.drawer-nav a:hover{background:var(--surface-2);color:var(--text);text-decoration:none}
.drawer-nav a.active{
  background:rgba(23,224,165,.10);
  color:var(--primary);
  border:1px solid rgba(23,224,165,.28);
}
.drawer-foot{padding-top:18px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:12px}
.drawer-foot .rl-btn{width:100%}

/* ---------- 页头带 ---------- */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.page-hero::before{
  content:"";
  position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  transform:scale(1.02);
}
.page-hero::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,14,18,.80),rgba(10,14,18,.93));
}
.page-hero .rl-container{padding-top:clamp(40px,6vw,72px);padding-bottom:clamp(40px,6vw,72px);position:relative;z-index:2}
.breadcrumb-row{display:flex;flex-wrap:wrap;align-items:center;gap:9px;font-size:13.5px;color:var(--text-muted);margin-bottom:22px}
.breadcrumb-row a{color:var(--text-muted)}
.breadcrumb-row a:hover{color:var(--primary)}
.breadcrumb-row .sep{opacity:.45}
.breadcrumb-row .current{color:var(--text)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.06em;
  color:var(--primary);
  padding:6px 14px;
  border-radius:999px;
  border:1px solid rgba(23,224,165,.30);
  background:rgba(23,224,165,.10);
  margin-bottom:20px;
}
.eyebrow i{font-size:12px}
.page-hero h1{
  font-size:clamp(30px,4.2vw,46px);
  line-height:1.16;
  max-width:900px;
  letter-spacing:.005em;
}
.page-hero h1 em{font-style:normal;color:var(--primary)}
.hero-lead{
  margin-top:20px;
  max-width:720px;
  color:var(--text-muted);
  font-size:clamp(15.5px,1.5vw,17.5px);
  line-height:1.85;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.metric-strip{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:14px;
  margin-top:clamp(32px,4vw,48px);
}
.metric{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-xs);
  padding:16px 18px;
  transition:border-color .22s var(--ease),transform .22s var(--ease),background .22s var(--ease);
}
.metric:hover{border-color:rgba(23,224,165,.42);transform:translateY(-3px);background:var(--surface-2)}
.metric b{display:block;font-size:clamp(20px,2.4vw,26px);font-weight:700;color:var(--text);line-height:1.2}
.metric span{display:block;margin-top:4px;font-size:13px;color:var(--text-muted);letter-spacing:.02em}

/* ---------- 通用板块 ---------- */
.section{padding:clamp(56px,7vw,104px) 0;position:relative}
.section-soft{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:780px;margin-bottom:clamp(28px,4vw,48px)}
.section-tag{
  display:inline-block;
  font-size:12.5px;letter-spacing:.06em;
  color:var(--accent);
  margin-bottom:14px;
}
.section-title{font-size:clamp(24px,2.6vw,32px);line-height:1.25}
.section-desc{margin-top:14px;color:var(--text-muted);font-size:16px;line-height:1.85}

/* ---------- 图文交替 ---------- */
.feature-row{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:clamp(24px,4vw,56px);
  align-items:center;
  padding:clamp(28px,3.4vw,44px);
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  transition:border-color .22s var(--ease),transform .22s var(--ease);
}
.feature-row + .feature-row{margin-top:26px}
.feature-row:hover{border-color:rgba(23,224,165,.36)}
.feature-row.reverse .feature-media{order:2}
.feature-media{
  margin:0;
  border-radius:var(--radius-xs);
  overflow:hidden;
  border:1px solid var(--line);
  background:linear-gradient(135deg,rgba(23,224,165,.10),rgba(255,138,61,.06));
}
.feature-media img{
  width:100%;height:100%;aspect-ratio:16/9;object-fit:cover;
  transition:transform .32s var(--ease);
}
.feature-row:hover .feature-media img{transform:scale(1.03)}
.feature-body h3{font-size:20px;line-height:1.35;margin-bottom:14px}
.feature-body p{color:var(--text-muted);font-size:15.5px;line-height:1.85}
.check-list{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.check-list li{
  position:relative;
  padding-left:24px;
  color:var(--text);
  font-size:15px;
  line-height:1.75;
}
.check-list li::before{
  content:"";
  position:absolute;left:0;top:11px;
  width:9px;height:9px;border-radius:3px;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  box-shadow:0 0 10px rgba(23,224,165,.55);
}
.rl-tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;
  font-size:12.5px;letter-spacing:.04em;
  border-radius:999px;
  border:1px solid rgba(23,224,165,.30);
  background:rgba(23,224,165,.10);
  color:var(--primary);
  transition:background .22s var(--ease),border-color .22s var(--ease);
}
.rl-tag.tag-accent{border-color:rgba(255,138,61,.34);background:rgba(255,138,61,.12);color:#FFB27C}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}

/* ---------- 参数对比 ---------- */
.spec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.spec-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px 24px;
  box-shadow:var(--shadow);
  transition:transform .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease);
}
.spec-card:hover{transform:translateY(-3px);border-color:rgba(23,224,165,.42);background:var(--surface-2)}
.spec-card h3{font-size:19px;margin-bottom:6px}
.spec-index{font-size:12.5px;letter-spacing:.06em;color:var(--text-muted);margin-bottom:16px;display:block}
.spec-rows{margin-top:18px;display:flex;flex-direction:column;gap:12px}
.spec-rows li{
  display:flex;justify-content:space-between;gap:14px;
  padding-bottom:12px;
  border-bottom:1px dashed var(--line);
  font-size:14.5px;
}
.spec-rows li:last-child{border-bottom:0;padding-bottom:0}
.spec-rows .k{color:var(--text-muted);flex:0 0 auto}
.spec-rows .v{color:var(--text);text-align:right;font-weight:600}
.spec-card.is-highlight{border-color:rgba(23,224,165,.45);box-shadow:0 18px 46px rgba(23,224,165,.16)}

/* ---------- 适用环境 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.scene-item{
  padding:22px 20px;
  border-radius:var(--radius-xs);
  border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  transition:transform .22s var(--ease),border-color .22s var(--ease);
}
.scene-item:hover{transform:translateY(-3px);border-color:rgba(23,224,165,.40)}
.scene-item i{color:var(--primary);font-size:18px}
.scene-item h3{font-size:16.5px;margin:14px 0 8px}
.scene-item p{color:var(--text-muted);font-size:14.5px;line-height:1.75}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:16px;
  overflow:hidden;
  transition:border-color .22s var(--ease),background .22s var(--ease);
}
.faq-item:hover{border-color:rgba(23,224,165,.34)}
.faq-item.is-open{border-color:rgba(23,224,165,.48);background:var(--surface-2)}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:19px 22px;
  text-align:left;
  font-size:16.5px;font-weight:600;
  color:var(--text);
  position:relative;
  transition:color .22s var(--ease);
}
.faq-q::before{
  content:"";
  position:absolute;left:0;top:14px;bottom:14px;
  width:3px;border-radius:0 3px 3px 0;
  background:linear-gradient(180deg,var(--primary),var(--primary-2));
  opacity:0;
  transition:opacity .22s var(--ease);
  box-shadow:0 0 12px rgba(23,224,165,.6);
}
.faq-item.is-open .faq-q::before{opacity:1}
.faq-q i{color:var(--primary);font-size:14px;transition:transform .26s var(--ease);flex:0 0 auto}
.faq-item.is-open .faq-q i{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s var(--ease)}
.faq-a-inner{padding:0 22px 22px 25px;color:var(--text-muted);font-size:15.5px;line-height:1.85}

/* ---------- 相关分类 ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.rel-card{
  display:flex;flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  color:var(--text);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.rel-card:hover{transform:translateY(-3px);border-color:rgba(23,224,165,.45);box-shadow:var(--shadow);text-decoration:none;color:var(--text)}
.rel-card img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .32s var(--ease)}
.rel-card:hover img{transform:scale(1.03)}
.rel-body{padding:18px 18px 22px}
.rel-body h3{font-size:17px;margin-bottom:8px;line-height:1.4}
.rel-body p{color:var(--text-muted);font-size:14px;line-height:1.7}
.rel-more{display:inline-flex;align-items:center;gap:7px;margin-top:14px;color:var(--primary);font-size:13.5px;font-weight:600}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:linear-gradient(135deg,rgba(23,224,165,.10),rgba(255,138,61,.07));
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:clamp(28px,4vw,46px);
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:clamp(22px,3vw,44px);
  align-items:center;
  box-shadow:var(--shadow);
}
.cta-band h2{font-size:clamp(22px,2.4vw,28px);line-height:1.3}
.cta-band p{color:var(--text-muted);margin-top:12px;font-size:15.5px}
.subscribe-form{display:flex;gap:12px;flex-wrap:wrap}
.subscribe-form input{
  flex:1 1 220px;
  min-height:48px;
  padding:0 18px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  background:rgba(10,14,18,.6);
  color:var(--text);
  font-size:15px;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.subscribe-form input::placeholder{color:#6F7C87}
.subscribe-form input:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 4px rgba(23,224,165,.16);
}
.form-hint{margin-top:12px;font-size:12.5px;color:var(--text-muted);line-height:1.7}
.form-hint.is-error{color:var(--danger)}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--bg-soft);
  border-top:1px solid var(--line);
  padding:clamp(46px,5.5vw,74px) 0 26px;
  margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:11px;font-size:17px;margin-bottom:16px}
.footer-brand b{font-weight:700}
.footer-col p{color:var(--text-muted);font-size:14.5px;line-height:1.8;max-width:340px}
.footer-col h3{font-size:15px;letter-spacing:.04em;margin-bottom:18px;color:var(--text)}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{
  color:var(--text-muted);
  font-size:14.5px;
  transition:color .22s var(--ease),transform .22s var(--ease);
  display:inline-block;
}
.footer-links a:hover{color:var(--primary);transform:translateX(3px);text-decoration:none}
.footer-info{display:flex;flex-direction:column;gap:12px}
.footer-info span{color:var(--text-muted);font-size:14.5px;display:flex;align-items:center;gap:9px}
.footer-info i{color:var(--primary);font-size:14px;width:16px;text-align:center}
.footer-bottom{
  margin-top:clamp(32px,4vw,46px);
  padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  color:var(--text-muted);font-size:13.5px;
}
.to-top{
  display:inline-flex;align-items:center;gap:8px;
  min-height:42px;padding:0 18px;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--text);
  font-size:13.5px;
  transition:background .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);
}
.to-top:hover{background:var(--surface-2);border-color:rgba(23,224,165,.45);transform:translateY(-2px)}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .nav-links{gap:20px}
  .nav-link-item{font-size:14.5px}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .rel-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:26px}
}
@media (max-width:991px){
  .nav-links{display:none}
  .header-actions .rl-btn{display:none}
  .nav-toggle{display:inline-flex}
  .header-inner{min-height:66px}
  .feature-row{grid-template-columns:1fr}
  .feature-row.reverse .feature-media{order:0}
  .spec-grid{grid-template-columns:1fr}
  .cta-band{grid-template-columns:1fr}
  .metric-strip{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:575px){
  body{font-size:15.5px}
  .site-brand{font-size:15.5px}
  .brand-mark{width:27px;height:27px;flex-basis:27px}
  .page-hero h1{font-size:28px}
  .scene-grid{grid-template-columns:1fr}
  .rel-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .metric-strip{grid-template-columns:repeat(2,1fr);gap:12px}
  .hero-actions .rl-btn{width:100%}
  .subscribe-form .rl-btn{width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition-duration:.01ms !important}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --bg:#0A0E12;
  --bg-soft:#12171D;
  --bg-soft-2:#161C23;
  --surface:rgba(255,255,255,.045);
  --surface-2:rgba(255,255,255,.07);
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.16);
  --text:#E8EEF2;
  --text-muted:#9AA7B2;
  --primary:#17E0A5;
  --primary-2:#0FB98A;
  --accent:#FF8A3D;
  --danger:#FF5C6C;
  --radius-card:18px;
  --radius-sm:12px;
  --radius-inner:14px;
  --shadow-card:0 18px 40px rgba(0,0,0,.45);
  --shadow-soft:0 10px 26px rgba(0,0,0,.35);
  --glow:0 0 0 1px rgba(23,224,165,.35), 0 14px 34px rgba(23,224,165,.18);
  --ease:cubic-bezier(.22,.61,.36,1);
  --t:220ms var(--ease);
  --section:clamp(56px,7vw,104px);
  --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:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--primary);text-decoration:none;transition:color var(--t),text-decoration-color var(--t);}
a:hover{color:var(--primary-2);text-decoration:underline;text-underline-offset:4px;}
p{margin:0 0 1.1em;}
h1,h2,h3,h4{margin:0 0 .6em;font-weight:700;color:var(--text);letter-spacing:.01em;}
h1{font-size:clamp(30px,4.2vw,46px);line-height:1.16;font-weight:700;}
h2{font-size:clamp(24px,2.6vw,32px);line-height:1.25;}
h3{font-size:20px;line-height:1.35;}
ul,ol{margin:0 0 1.1em;padding-left:1.15em;}
li{margin:0 0 .5em;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}

.rl-container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 20px;
}
@media (min-width:768px){ .rl-container{padding:0 24px;} }
@media (min-width:1200px){ .rl-container{padding:0 32px;} }

/* ============ HEADER ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1040;
  background:rgba(10,14,18,.72);
  border-bottom:1px solid transparent;
  transition:background var(--t),border-color var(--t),backdrop-filter var(--t);
}
.site-header.is-scrolled{
  background:rgba(10,14,18,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:76px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
  color:var(--text);
  font-weight:700;
  font-size:17px;
  letter-spacing:.01em;
}
.brand:hover{color:var(--text);text-decoration:none;}
.brand-mark{
  position:relative;
  width:34px;height:34px;
  border-radius:11px;
  background:linear-gradient(150deg,rgba(23,224,165,.22),rgba(255,138,61,.10));
  border:1px solid rgba(23,224,165,.42);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  flex:0 0 auto;
  box-shadow:0 6px 18px rgba(23,224,165,.16);
}
.brand-mark::before,
.brand-mark::after{
  content:"";
  position:absolute;
  left:8px;right:8px;
  height:1px;
  background:rgba(23,224,165,.55);
  border-radius:2px;
}
.brand-mark::before{top:12px;}
.brand-mark::after{top:20px;}
.brand-mark span{
  position:absolute;
  left:8px;
  top:12px;
  bottom:12px;
  width:2px;
  border-radius:2px;
  background:var(--primary);
  box-shadow:0 0 10px rgba(23,224,165,.8);
}
.footer-brand .brand-mark{width:30px;height:30px;}
.footer-brand .brand-mark::before{top:10px;}
.footer-brand .brand-mark::after{top:18px;}
.footer-brand .brand-mark span{top:10px;bottom:10px;}

.nav-links{
  display:none;
  align-items:center;
  gap:6px;
  margin-left:auto;
}
.nav-link-item{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:0 14px;
  border-radius:999px;
  color:var(--text-muted);
  font-size:15px;
  font-weight:500;
  transition:color var(--t),background var(--t),box-shadow var(--t);
}
.nav-link-item:hover{
  color:var(--text);
  background:var(--surface-2);
  text-decoration:none;
}
.nav-link-item.active{
  color:var(--text);
  background:var(--surface-2);
  box-shadow:inset 0 0 0 1px rgba(23,224,165,.28);
}
.nav-link-item.active::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:6px;
  width:22px;
  height:2px;
  border-radius:2px;
  transform:translateX(-50%);
  background:var(--primary);
  box-shadow:0 0 12px rgba(23,224,165,.9);
}
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  margin-left:auto;
}
.nav-links + .header-actions{margin-left:0;}
.btn-main{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 22px;
  border:0;
  border-radius:999px;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  color:#062018;
  font-size:15px;
  font-weight:700;
  white-space:nowrap;
  box-shadow:0 8px 22px rgba(23,224,165,.24);
  transition:transform var(--t),box-shadow var(--t),filter var(--t);
}
.btn-main:hover{
  color:#062018;
  text-decoration:none;
  transform:translateY(-2px);
  box-shadow:var(--glow);
}
.btn-main:active{transform:translateY(0);}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 22px;
  border-radius:999px;
  border:1px solid var(--line-strong);
  background:var(--surface);
  color:var(--text);
  font-size:15px;
  font-weight:600;
  transition:border-color var(--t),background var(--t),transform var(--t),color var(--t);
}
.btn-ghost:hover{
  color:var(--text);
  text-decoration:none;
  border-color:rgba(23,224,165,.5);
  background:var(--surface-2);
  transform:translateY(-2px);
}
.btn-accent{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 22px;
  border-radius:12px;
  border:1px solid rgba(255,138,61,.45);
  background:rgba(255,138,61,.12);
  color:#FFC79B;
  font-size:15px;
  font-weight:600;
  transition:background var(--t),color var(--t),transform var(--t);
}
.btn-accent:hover{color:#FFD9BC;text-decoration:none;background:rgba(255,138,61,.2);transform:translateY(-2px);}
.nav-toggle{
  width:44px;height:44px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:12px;
  border:1px solid var(--line-strong);
  background:var(--surface);
  color:var(--text);
  font-size:17px;
  transition:background var(--t),border-color var(--t);
}
.nav-toggle:hover{background:var(--surface-2);border-color:rgba(23,224,165,.4);}
.header-cta-desktop{display:none;}

@media (min-width:992px){
  .nav-links{display:flex;}
  .nav-toggle{display:none;}
  .header-actions{margin-left:0;}
  .header-cta-desktop{display:inline-flex;}
  .header-inner{gap:28px;min-height:82px;}
}

/* mobile offcanvas */
.offcanvas.rl-drawer{
  background:var(--bg-soft);
  color:var(--text);
  width:320px;
  border-right:1px solid var(--line);
}
.rl-drawer .offcanvas-header{
  border-bottom:1px solid var(--line);
  padding:18px 20px;
}
.rl-drawer .btn-close{
  filter:invert(1) grayscale(1) brightness(1.6);
  opacity:.7;
}
.rl-drawer .offcanvas-body{padding:18px 16px 28px;}
.drawer-nav{display:flex;flex-direction:column;gap:6px;}
.drawer-nav a{
  display:flex;
  align-items:center;
  min-height:48px;
  padding:0 14px;
  border-radius:12px;
  color:var(--text-muted);
  font-size:15.5px;
  font-weight:500;
  transition:background var(--t),color var(--t);
}
.drawer-nav a:hover{background:var(--surface-2);color:var(--text);text-decoration:none;}
.drawer-nav a.active{
  color:var(--text);
  background:var(--surface-2);
  box-shadow:inset 3px 0 0 var(--primary);
}
.drawer-cta{margin-top:18px;display:flex;flex-direction:column;gap:10px;}
.drawer-meta{
  margin-top:22px;
  padding-top:18px;
  border-top:1px solid var(--line);
  color:var(--text-muted);
  font-size:13.5px;
  line-height:1.9;
}

/* ============ PAGE HERO ============ */
.page-hero{
  position:relative;
  padding:clamp(56px,8vw,96px) 0 clamp(48px,6vw,76px);
  background-image:linear-gradient(180deg,rgba(10,14,18,.78),rgba(10,14,18,.92)),url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:auto -10% -60% 45%;
  height:420px;
  background:radial-gradient(circle at 50% 50%,rgba(23,224,165,.16),transparent 68%);
  pointer-events:none;
}
.page-hero .rl-container{position:relative;z-index:2;}
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  color:var(--text-muted);
  margin-bottom:20px;
}
.crumbs a{color:var(--text-muted);}
.crumbs a:hover{color:var(--primary);text-decoration:none;}
.crumbs span.sep{opacity:.5;}
.badge-soft{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  border:1px solid rgba(23,224,165,.4);
  background:rgba(23,224,165,.10);
  color:var(--primary);
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.06em;
}
.badge-soft.warm{
  border-color:rgba(255,138,61,.42);
  background:rgba(255,138,61,.12);
  color:#FFB27A;
}
.hero-title{margin:20px 0 16px;max-width:900px;}
.hero-lead{
  max-width:760px;
  color:var(--text-muted);
  font-size:16.5px;
  margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-strip{
  margin-top:clamp(34px,4vw,52px);
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:14px;
}
.strip-cell{
  padding:16px 18px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  background:var(--surface);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
}
.strip-cell b{
  display:block;
  font-size:23px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  letter-spacing:.02em;
  color:var(--text);
}
.strip-cell span{
  display:block;
  font-size:13px;
  color:var(--text-muted);
  letter-spacing:.04em;
}
@media (min-width:768px){
  .hero-strip{grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
}

/* ============ SECTIONS ============ */
.section{padding:var(--section) 0;}
.section.soft{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:780px;margin-bottom:clamp(28px,3.4vw,44px);}
.section-head p{color:var(--text-muted);font-size:15.5px;margin:12px 0 0;}
.eyebrow{
  display:inline-block;
  font-size:12.5px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--primary);
  font-weight:600;
  margin-bottom:12px;
}

/* steps */
.steps{
  list-style:none;
  padding:0;
  margin:0;
  display:flex;
  flex-direction:column;
  gap:20px;
}
.step-item{
  display:grid;
  grid-template-columns:1fr;
  gap:14px;
}
.step-num{
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  font-size:30px;
  font-weight:700;
  line-height:1;
  color:transparent;
  -webkit-text-stroke:1px rgba(23,224,165,.75);
  letter-spacing:.04em;
  padding-top:6px;
}
.step-card{
  position:relative;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:var(--surface);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  box-shadow:var(--shadow-card);
  padding:24px 22px;
  transition:transform var(--t),border-color var(--t),background var(--t);
}
.step-card::before{
  content:"";
  position:absolute;
  left:0;top:22px;bottom:22px;
  width:3px;
  border-radius:3px;
  background:linear-gradient(180deg,var(--primary),rgba(23,224,165,0));
  opacity:.85;
}
.step-card:hover{
  transform:translateY(-3px);
  border-color:rgba(23,224,165,.36);
  background:var(--surface-2);
}
.step-card h3{margin:0 0 10px;padding-left:14px;}
.step-card p{padding-left:14px;color:var(--text-muted);font-size:15.4px;margin-bottom:.9em;}
.step-card p:last-child{margin-bottom:0;}
.check-list{list-style:none;padding-left:14px;margin:14px 0 0;}
.check-list li{
  position:relative;
  padding-left:22px;
  color:var(--text-muted);
  font-size:15px;
  margin-bottom:8px;
}
.check-list li::before{
  content:"";
  position:absolute;
  left:0;top:.72em;
  width:8px;height:8px;
  border-radius:2px;
  background:var(--primary);
  box-shadow:0 0 8px rgba(23,224,165,.55);
}
@media (min-width:768px){
  .step-item{grid-template-columns:92px 1fr;gap:22px;align-items:start;}
  .step-num{font-size:42px;text-align:right;padding-top:8px;}
  .step-card{padding:30px 30px 26px;}
}

/* method cards */
.grid-2{
  display:grid;
  grid-template-columns:1fr;
  gap:20px;
}
@media (min-width:576px){ .grid-2{grid-template-columns:repeat(2,minmax(0,1fr));} }
.card-rl{
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:var(--surface);
  box-shadow:var(--shadow-card);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  transition:transform var(--t),border-color var(--t);
}
.card-rl:hover{transform:translateY(-3px);border-color:rgba(23,224,165,.36);}
.card-rl .card-media{
  aspect-ratio:16/9;
  overflow:hidden;
  border-radius:var(--radius-inner);
  margin:14px 14px 0;
  background:linear-gradient(135deg,#141B22,#0C1116);
}
.card-rl .card-media img{
  width:100%;height:100%;object-fit:cover;
  transition:transform 300ms var(--ease);
}
.card-rl:hover .card-media img{transform:scale(1.03);}
.card-body-rl{padding:18px 20px 22px;}
.card-body-rl h3{margin:10px 0 8px;}
.card-body-rl p{color:var(--text-muted);font-size:15.2px;margin-bottom:.8em;}

/* metric band */
.metric-band{
  display:grid;
  grid-template-columns:1fr;
  gap:16px;
}
.metric{
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:var(--surface);
  padding:22px 20px;
  transition:border-color var(--t),transform var(--t);
}
.metric:hover{border-color:rgba(23,224,165,.35);transform:translateY(-3px);}
.metric b{
  display:block;
  font-size:clamp(26px,3vw,34px);
  font-variant-numeric:tabular-nums;
  font-weight:700;
  line-height:1.1;
  color:var(--primary);
  margin-bottom:8px;
}
.metric h3{font-size:16.5px;margin-bottom:6px;}
.metric p{color:var(--text-muted);font-size:14.6px;margin:0;}
@media (min-width:576px){ .metric-band{grid-template-columns:repeat(2,minmax(0,1fr));} }
@media (min-width:992px){ .metric-band{grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;} }

/* split */
.split{
  display:grid;
  grid-template-columns:1fr;
  gap:28px;
  align-items:center;
}
@media (min-width:992px){
  .split{grid-template-columns:7fr 5fr;gap:44px;}
  .split.reverse{grid-template-columns:5fr 7fr;}
}
.split-media{
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  background:#0C1116;
}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.scene-list{list-style:none;padding:0;margin:20px 0 0;}
.scene-list li{
  display:flex;
  gap:12px;
  padding:14px 0;
  border-top:1px solid var(--line);
  color:var(--text-muted);
  font-size:15.2px;
}
.scene-list li:first-child{border-top:0;padding-top:4px;}
.scene-list i{color:var(--primary);margin-top:6px;font-size:15px;}

/* FAQ */
.faq-wrap{max-width:960px;}
.faq-item{
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  background:var(--surface);
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color var(--t),background var(--t);
}
.faq-item:hover{border-color:rgba(23,224,165,.3);}
.faq-item.is-open{border-color:rgba(23,224,165,.42);background:var(--surface-2);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  text-align:left;
  padding:18px 20px;
  background:transparent;
  border:0;
  color:var(--text);
  font-size:16px;
  font-weight:600;
  line-height:1.5;
  cursor:pointer;
  position:relative;
}
.faq-q::before{
  content:"";
  position:absolute;
  left:0;top:14px;bottom:14px;
  width:3px;
  border-radius:3px;
  background:var(--primary);
  opacity:0;
  transition:opacity var(--t);
}
.faq-item.is-open .faq-q::before{opacity:1;}
.faq-q i{
  flex:0 0 auto;
  color:var(--primary);
  font-size:14px;
  transition:transform var(--t);
}
.faq-item.is-open .faq-q i{transform:rotate(180deg);}
.faq-a{
  padding:0 20px 20px 20px;
  color:var(--text-muted);
  font-size:15.2px;
}
.faq-a p:last-child{margin-bottom:0;}

/* related links */
.rel-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:16px;
}
@media (min-width:576px){ .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));} }
@media (min-width:992px){ .rel-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;} }
.rel-card{
  display:flex;
  flex-direction:column;
  gap:10px;
  padding:20px;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--text);
  transition:transform var(--t),border-color var(--t),background var(--t);
}
.rel-card:hover{
  color:var(--text);
  text-decoration:none;
  transform:translateY(-3px);
  border-color:rgba(23,224,165,.4);
  background:var(--surface-2);
}
.rel-card .rel-tag{
  font-size:12.5px;
  letter-spacing:.06em;
  color:var(--primary);
  font-weight:600;
}
.rel-card b{font-size:16.5px;font-weight:700;}
.rel-card span.desc{color:var(--text-muted);font-size:14.6px;}
.rel-card .rel-go{color:var(--text-muted);font-size:13.5px;margin-top:4px;}

/* CTA band */
.cta-band{
  position:relative;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:linear-gradient(120deg,rgba(23,224,165,.10),rgba(255,138,61,.08)),var(--bg-soft-2);
  padding:clamp(30px,4vw,50px) clamp(22px,3vw,44px);
  overflow:hidden;
  display:grid;
  grid-template-columns:1fr;
  gap:24px;
  align-items:center;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-140px;top:-120px;
  width:380px;height:380px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(23,224,165,.18),transparent 65%);
  pointer-events:none;
}
.cta-band h2{margin-bottom:10px;}
.cta-band p{color:var(--text-muted);margin-bottom:0;max-width:640px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:2;}
@media (min-width:992px){
  .cta-band{grid-template-columns:1.5fr 1fr;gap:34px;}
  .cta-actions{justify-content:flex-end;}
}

/* form inline */
.subscribe{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  align-items:center;
  margin-top:18px;
}
.subscribe input{
  flex:1 1 240px;
  min-height:48px;
  padding:0 18px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.04);
  color:var(--text);
  font-size:15px;
  transition:border-color var(--t),box-shadow var(--t),background var(--t);
}
.subscribe input::placeholder{color:#7C8894;}
.subscribe input:focus{
  outline:none;
  border-color:var(--primary);
  background:rgba(23,224,165,.06);
  box-shadow:0 0 0 4px rgba(23,224,165,.14);
}
.privacy-note{
  font-size:12.5px;
  color:var(--text-muted);
  letter-spacing:.02em;
  margin-top:12px;
}

/* ============ FOOTER ============ */
.site-footer{
  background:var(--bg-soft);
  border-top:1px solid var(--line);
  padding:clamp(44px,5vw,68px) 0 26px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:32px;
}
@media (min-width:768px){
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:34px;}
}
@media (min-width:992px){
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;}
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:12px;
  color:var(--text);
  font-size:16.5px;
  margin-bottom:14px;
}
.footer-col p{color:var(--text-muted);font-size:14.6px;margin:0;max-width:340px;}
.footer-col h3{
  font-size:15px;
  letter-spacing:.06em;
  color:var(--text);
  margin-bottom:16px;
  font-weight:600;
}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{
  color:var(--text-muted);
  font-size:14.8px;
  transition:color var(--t),padding-left var(--t);
}
.footer-links a:hover{color:var(--primary);padding-left:4px;text-decoration:none;}
.footer-info{display:flex;flex-direction:column;gap:10px;}
.footer-info span{
  color:var(--text-muted);
  font-size:14.6px;
  display:flex;
  gap:10px;
  align-items:flex-start;
}
.footer-info i{color:var(--primary);margin-top:5px;font-size:13px;}
.footer-bottom{
  margin-top:38px;
  padding-top:20px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  align-items:center;
  justify-content:space-between;
  color:var(--text-muted);
  font-size:13.5px;
}
.to-top{
  display:inline-flex;
  align-items:center;
  gap:8px;
  min-height:40px;
  padding:0 18px;
  border-radius:999px;
  border:1px solid var(--line-strong);
  background:var(--surface);
  color:var(--text);
  font-size:13.5px;
  transition:border-color var(--t),background var(--t),transform var(--t);
}
.to-top:hover{border-color:rgba(23,224,165,.45);background:var(--surface-2);transform:translateY(-2px);}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}

/* roulang page: category3 */
:root{
  --bg:#0A0E12;
  --bg-soft:#12171D;
  --surface:rgba(255,255,255,.045);
  --surface-2:rgba(255,255,255,.07);
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --text:#E8EEF2;
  --text-muted:#9AA7B2;
  --primary:#17E0A5;
  --primary-2:#0FB98A;
  --accent:#FF8A3D;
  --danger:#FF6B6B;
  --radius-card:18px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow-card:0 18px 40px rgba(0,0,0,.45);
  --shadow-soft:0 10px 26px rgba(0,0,0,.35);
  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:220ms;
  --gutter:clamp(56px,7vw,104px);
}
*,*::before,*::after{box-sizing:border-box}
html,body{overflow-x:hidden}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--primary);text-decoration:none;transition:color var(--dur) var(--ease),text-underline-offset var(--dur) var(--ease)}
a:hover{color:#4ff0c0;text-decoration:underline;text-underline-offset:4px}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;color:#F3F8FA;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:6px}
.rl-container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.rl-container{padding:0 24px}}
@media (min-width:1200px){.rl-container{padding:0 32px}}
.mono{font-variant-numeric:tabular-nums;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace}

/* ============ header / nav ============ */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(10,14,18,.72);
  border-bottom:1px solid transparent;
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease),backdrop-filter var(--dur) var(--ease);
}
.site-header.is-scrolled{
  background:rgba(10,14,18,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
  box-shadow:0 12px 30px rgba(0,0,0,.35);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:76px}
.brand{display:inline-flex;align-items:center;gap:11px;color:var(--text);font-size:17px;font-weight:700;letter-spacing:.02em;white-space:nowrap}
.brand:hover{color:var(--text);text-decoration:none}
.brand-mark{
  position:relative;width:30px;height:30px;flex:0 0 30px;border-radius:9px;
  background:linear-gradient(140deg,rgba(23,224,165,.28),rgba(23,224,165,.04));
  border:1px solid rgba(23,224,165,.42);
  display:inline-flex;align-items:center;justify-content:center;
}
.brand-mark::before{
  content:"";width:14px;height:2px;border-radius:2px;background:var(--primary);
  box-shadow:0 -5px 0 rgba(23,224,165,.55),0 5px 0 rgba(23,224,165,.35);
}
.brand-mark span{
  position:absolute;inset:auto -4px -4px auto;width:9px;height:9px;border-radius:50%;
  background:radial-gradient(circle,rgba(23,224,165,.85),rgba(23,224,165,0) 70%);
}
.nav-links{display:none;align-items:center;gap:26px}
@media (min-width:992px){.nav-links{display:flex}}
.nav-link-item{
  position:relative;color:var(--text-muted);font-size:14.5px;font-weight:500;
  padding:8px 2px;white-space:nowrap;transition:color var(--dur) var(--ease)
}
.nav-link-item::after{
  content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);
  width:0;height:2px;border-radius:2px;background:var(--primary);
  box-shadow:0 0 10px rgba(23,224,165,.8);
  transition:width var(--dur) var(--ease);
}
.nav-link-item:hover{color:var(--text);text-decoration:none}
.nav-link-item:hover::after{width:60%}
.nav-link-item.active{color:var(--text)}
.nav-link-item.active::after{width:100%}
.header-actions{display:flex;align-items:center;gap:12px}
.rl-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border:1px solid transparent;cursor:pointer;
  font-size:14.5px;font-weight:600;letter-spacing:.02em;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),background var(--dur) var(--ease),border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.rl-btn-primary{
  border-radius:var(--radius-pill);color:#04120D;
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-2) 100%);
  box-shadow:0 0 0 rgba(23,224,165,0);
}
.rl-btn-primary:hover{
  color:#04120D;text-decoration:none;transform:translateY(-2px);
  box-shadow:0 12px 28px rgba(23,224,165,.32),0 0 22px rgba(23,224,165,.28);
}
.rl-btn-primary:active{transform:translateY(0)}
.rl-btn-ghost{
  border-radius:var(--radius-sm);color:var(--text);border-color:var(--line-strong);
  background:var(--surface);
}
.rl-btn-ghost:hover{color:var(--text);text-decoration:none;border-color:rgba(23,224,165,.55);background:rgba(23,224,165,.08)}
.rl-btn-accent{
  border-radius:var(--radius-pill);color:#1A0D03;
  background:linear-gradient(135deg,#FFB073,var(--accent));
}
.rl-btn-accent:hover{color:#1A0D03;text-decoration:none;transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,138,61,.28)}
.rl-btn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
.nav-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:var(--radius-sm);
  border:1px solid var(--line-strong);background:var(--surface);color:var(--text);
  transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease)
}
.nav-toggle:hover{border-color:rgba(23,224,165,.5);background:rgba(23,224,165,.08)}
@media (min-width:992px){.nav-toggle{display:none}}
.nav-cta{display:none}
@media (min-width:1200px){.nav-cta{display:inline-flex}}

/* offcanvas custom */
.offcanvas.rl-drawer{background:var(--bg-soft);color:var(--text);width:min(86vw,340px);border-right:1px solid var(--line)}
.rl-drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px}
.rl-drawer .offcanvas-body{padding:18px 20px 32px}
.drawer-links{display:flex;flex-direction:column;gap:6px;margin-bottom:22px}
.drawer-links a{
  display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:var(--radius-sm);
  color:var(--text-muted);font-size:15px;border:1px solid transparent;
}
.drawer-links a:hover,.drawer-links a.active{
  color:var(--text);text-decoration:none;background:var(--surface-2);border-color:var(--line)
}
.drawer-links a.active{border-color:rgba(23,224,165,.45);color:var(--primary)}
.drawer-meta{border-top:1px solid var(--line);padding-top:18px;display:flex;flex-direction:column;gap:10px;color:var(--text-muted);font-size:13.5px}
.drawer-meta span{display:flex;align-items:center;gap:9px}
.drawer-meta i{color:var(--primary)}

/* ============ page head ============ */
.page-head{
  position:relative;overflow:hidden;
  padding:clamp(48px,6vw,84px) 0 clamp(40px,5vw,64px);
  background-image:
    linear-gradient(180deg,rgba(10,14,18,.78),rgba(10,14,18,.94)),
    url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.page-head::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(680px 260px at 88% 12%,rgba(23,224,165,.16),rgba(23,224,165,0) 70%),
    repeating-linear-gradient(90deg,rgba(255,255,255,.045) 0 1px,transparent 1px 74px);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,.15));
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,.15));
}
.page-head .rl-container{position:relative;z-index:1}
.breadcrumb-bar{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--text-muted);flex-wrap:wrap}
.breadcrumb-bar a{color:var(--text-muted)}
.breadcrumb-bar a:hover{color:var(--primary)}
.breadcrumb-bar .sep{opacity:.5}
.breadcrumb-bar .current{color:var(--text)}
.badge-soft{
  display:inline-flex;align-items:center;gap:7px;
  margin-top:20px;padding:6px 13px;border-radius:var(--radius-pill);
  font-size:12.5px;letter-spacing:.06em;font-weight:600;
  color:var(--primary);background:rgba(23,224,165,.10);border:1px solid rgba(23,224,165,.38);
}
.badge-accent{
  display:inline-flex;align-items:center;gap:7px;
  padding:5px 12px;border-radius:var(--radius-pill);font-size:12.5px;letter-spacing:.06em;font-weight:600;
  color:var(--accent);background:rgba(255,138,61,.10);border:1px solid rgba(255,138,61,.38);
}
.page-head h1{
  margin-top:16px;
  font-size:clamp(30px,4.2vw,46px);
  line-height:1.16;font-weight:700;max-width:20ch;
}
.page-head .lead{
  margin-top:18px;max-width:62ch;color:var(--text-muted);font-size:16px;line-height:1.85;
}
.head-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.head-stats{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:34px;
}
@media (min-width:768px){.head-stats{grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}}
.stat-cell{
  border:1px solid var(--line);border-radius:14px;padding:16px 18px;
  background:var(--surface);
}
.stat-cell b{display:block;font-size:24px;line-height:1.2;color:var(--primary);font-weight:700}
.stat-cell span{display:block;margin-top:6px;font-size:12.5px;letter-spacing:.05em;color:var(--text-muted)}

/* ============ sections ============ */
.section{padding:var(--gutter) 0}
.section-soft{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:clamp(28px,3.4vw,44px)}
.section-head h2{font-size:clamp(24px,2.6vw,32px);line-height:1.25}
.section-head p{margin-top:12px;max-width:64ch;color:var(--text-muted);font-size:15.5px}
.section-tag{font-size:12.5px;letter-spacing:.06em;color:var(--primary);font-weight:600}

/* ============ two-column feature cards ============ */
.card-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media (min-width:768px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px}}
@media (min-width:1200px){.card-grid{gap:28px}}
.feature-card{
  position:relative;display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--radius-card);border:1px solid var(--line);
  background:var(--surface);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.feature-card:hover{
  transform:translateY(-3px);
  border-color:rgba(23,224,165,.45);
  box-shadow:0 24px 48px rgba(0,0,0,.5),0 0 26px rgba(23,224,165,.14),inset 0 1px 0 rgba(255,255,255,.08);
}
.feature-cover{position:relative;overflow:hidden;border-radius:14px;margin:14px 14px 0;background:#0d1217}
.feature-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:14px;transition:transform 320ms var(--ease)}
.feature-card:hover .feature-cover img{transform:scale(1.03)}
.feature-cover::after{
  content:"";position:absolute;inset:0;border-radius:14px;
  background:linear-gradient(180deg,rgba(10,14,18,.06),rgba(10,14,18,.55));
  pointer-events:none;
}
.feature-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto}
.feature-body h3{font-size:20px;line-height:1.35}
.feature-body p{color:var(--text-muted);font-size:14.5px;line-height:1.8}
.feature-list{display:flex;flex-direction:column;gap:9px;margin-top:2px}
.feature-list li{position:relative;padding-left:20px;font-size:14px;color:#C6D2DA;line-height:1.75}
.feature-list li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:2px;
  background:rgba(23,224,165,.85);box-shadow:0 0 8px rgba(23,224,165,.5);
}
.feature-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
}
.feature-foot a{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:8px}
.feature-foot .meta{font-size:12.5px;color:var(--text-muted);letter-spacing:.04em}

/* ============ key points band ============ */
.band-grid{display:grid;grid-template-columns:1fr;gap:26px}
@media (min-width:992px){.band-grid{grid-template-columns:5fr 7fr;gap:34px}}
.band-intro{
  border-radius:var(--radius-card);border:1px solid var(--line);background:var(--surface);
  padding:26px 24px;box-shadow:var(--shadow-soft),inset 0 1px 0 rgba(255,255,255,.05);
}
.band-intro h2{font-size:clamp(22px,2.3vw,28px);line-height:1.3}
.band-intro p{margin-top:14px;color:var(--text-muted);font-size:15px}
.band-intro .band-note{
  margin-top:22px;padding:14px 16px;border-radius:14px;
  border:1px solid rgba(255,138,61,.32);background:rgba(255,138,61,.08);
  font-size:13.5px;color:#F3D6BF;line-height:1.75;
}
.point-cols{display:grid;grid-template-columns:1fr;gap:16px}
@media (min-width:576px){.point-cols{grid-template-columns:repeat(2,minmax(0,1fr))}}
.point-item{
  border-radius:14px;border:1px solid var(--line);background:var(--surface-2);
  padding:18px 18px 18px 20px;border-left:3px solid rgba(23,224,165,.7);
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease)
}
.point-item:hover{transform:translateY(-3px);border-color:rgba(23,224,165,.5);border-left-color:var(--primary)}
.point-item h3{font-size:16px;line-height:1.45}
.point-item p{margin-top:8px;font-size:13.8px;color:var(--text-muted);line-height:1.78}

/* ============ faq ============ */
.faq-wrap{display:grid;grid-template-columns:1fr;gap:26px}
@media (min-width:992px){.faq-wrap{grid-template-columns:8fr 4fr;gap:34px;align-items:start}}
.faq-list{
  border-radius:var(--radius-card);border:1px solid var(--line);background:var(--surface);
  overflow:hidden;box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.05);
}
.faq-item + .faq-item{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;background:transparent;border:0;color:var(--text);text-align:left;
  font-size:16px;font-weight:600;line-height:1.5;cursor:pointer;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),padding-left var(--dur) var(--ease);
}
.faq-q:hover{background:rgba(255,255,255,.035)}
.faq-q i{
  flex:0 0 auto;color:var(--text-muted);font-size:14px;
  transition:transform var(--dur) var(--ease),color var(--dur) var(--ease);
}
.faq-item.is-open .faq-q{color:var(--primary);padding-left:25px;border-left:3px solid var(--primary)}
.faq-item.is-open .faq-q i{transform:rotate(45deg);color:var(--primary)}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows var(--dur) var(--ease)}
.faq-item.is-open .faq-a{grid-template-rows:1fr}
.faq-a > div{overflow:hidden}
.faq-a p{padding:0 22px 22px 25px;color:var(--text-muted);font-size:14.8px;line-height:1.85}
.faq-aside{
  border-radius:var(--radius-card);border:1px solid var(--line);background:var(--surface-2);
  padding:24px 22px;box-shadow:var(--shadow-soft);
}
.faq-aside h3{font-size:17px}
.faq-aside p{margin-top:12px;color:var(--text-muted);font-size:14px}
.faq-aside .aside-links{display:flex;flex-direction:column;gap:10px;margin-top:18px}
.faq-aside .aside-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  min-height:46px;padding:0 14px;border-radius:12px;border:1px solid var(--line);
  background:var(--surface);color:var(--text);font-size:14px;
}
.faq-aside .aside-links a:hover{border-color:rgba(23,224,165,.5);color:var(--primary);text-decoration:none}
.faq-aside .aside-links i{font-size:12px;color:var(--text-muted)}

/* ============ related categories ============ */
.rel-grid{display:grid;grid-template-columns:1fr;gap:18px}
@media (min-width:576px){.rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:992px){.rel-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}}
.rel-card{
  display:block;border-radius:var(--radius-card);border:1px solid var(--line);background:var(--surface);
  padding:20px 18px;color:var(--text);
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.rel-card:hover{transform:translateY(-3px);border-color:rgba(23,224,165,.45);background:var(--surface-2);color:var(--text);text-decoration:none}
.rel-card i{color:var(--primary);font-size:18px}
.rel-card h3{margin-top:14px;font-size:16.5px;line-height:1.4}
.rel-card p{margin-top:8px;font-size:13.5px;color:var(--text-muted);line-height:1.75}

/* ============ CTA band ============ */
.cta-band{padding:var(--gutter) 0}
.cta-box{
  position:relative;overflow:hidden;border-radius:22px;border:1px solid rgba(23,224,165,.28);
  background:linear-gradient(135deg,rgba(23,224,165,.12),rgba(255,255,255,.03) 55%),
             url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
  padding:clamp(30px,4vw,52px);
  box-shadow:var(--shadow-card);
}
.cta-box::before{
  content:"";position:absolute;inset:0;background:rgba(10,14,18,.72);pointer-events:none;
}
.cta-inner{position:relative;z-index:1;display:grid;grid-template-columns:1fr;gap:26px;align-items:center}
@media (min-width:992px){.cta-inner{grid-template-columns:7fr 5fr;gap:34px}}
.cta-inner h2{font-size:clamp(23px,2.6vw,30px);line-height:1.28}
.cta-inner p{margin-top:14px;color:#C6D2DA;font-size:15px;max-width:56ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:24px}
.cta-side{
  border-radius:var(--radius-card);border:1px solid var(--line);background:rgba(18,23,29,.72);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);padding:22px 20px;
}
.cta-side h3{font-size:16px}
.cta-side ul{margin-top:14px;display:flex;flex-direction:column;gap:11px}
.cta-side li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:#C6D2DA}
.cta-side li i{color:var(--primary);margin-top:4px}

/* ============ footer ============ */
.site-footer{background:var(--bg-soft);border-top:1px solid var(--line);padding-top:clamp(40px,5vw,64px)}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:576px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:992px){.footer-grid{grid-template-columns:4fr 3fr 3fr 4fr;gap:28px}}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:16px;color:var(--text)}
.footer-brand .brand-mark{width:26px;height:26px;flex:0 0 26px}
.footer-col p{margin-top:14px;color:var(--text-muted);font-size:14px;line-height:1.8;max-width:36ch}
.footer-col h3{font-size:15px;color:#F3F8FA;margin-bottom:16px;letter-spacing:.02em}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{color:var(--text-muted);font-size:14px}
.footer-links a:hover{color:var(--primary);text-decoration:none}
.footer-info{display:flex;flex-direction:column;gap:12px;color:var(--text-muted);font-size:14px}
.footer-info span{display:flex;align-items:flex-start;gap:10px;line-height:1.7}
.footer-info i{color:var(--primary);margin-top:5px}
.footer-bottom{
  margin-top:clamp(32px,4vw,52px);padding:20px 0;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  color:var(--text-muted);font-size:13.5px;
}
.to-top{
  display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:0 18px;
  border-radius:var(--radius-pill);border:1px solid var(--line-strong);background:var(--surface);
  color:var(--text);font-size:13.5px;cursor:pointer;
  transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease),transform var(--dur) var(--ease)
}
.to-top:hover{border-color:rgba(23,224,165,.55);background:rgba(23,224,165,.1);transform:translateY(-2px)}
.to-top i{color:var(--primary)}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category4 */
:root{
  --bg:#0A0E12;
  --bg-soft:#12171D;
  --surface:rgba(255,255,255,.045);
  --surface-2:rgba(255,255,255,.07);
  --line:rgba(255,255,255,.10);
  --text:#E8EEF2;
  --text-muted:#9AA7B2;
  --primary:#17E0A5;
  --primary-2:#0FB98A;
  --accent:#FF8A3D;
  --danger:#FF6A6A;
  --radius-card:18px;
  --radius-sm:12px;
  --shadow-card:0 18px 40px rgba(0,0,0,.45);
  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:220ms;
  --gap:clamp(56px,7vw,104px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:
    radial-gradient(900px 520px at 82% -10%, rgba(23,224,165,.10), transparent 62%),
    radial-gradient(700px 460px at 4% 8%, rgba(255,138,61,.07), transparent 60%),
    var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:color var(--dur) var(--ease),text-underline-offset var(--dur) var(--ease)}
a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:5px}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.01em;color:var(--text)}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
::selection{background:rgba(23,224,165,.28);color:#fff}

/* ============ 容器与节奏 ============ */
.rl-container{width:100%;max-width:1240px;margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:768px){.rl-container{padding-left:24px;padding-right:24px}}
@media (min-width:1200px){.rl-container{padding-left:32px;padding-right:32px}}
.section{padding:var(--gap) 0;position:relative}
.section--soft{background:linear-gradient(180deg,rgba(255,255,255,.028),rgba(255,255,255,0) 78%)}
.section--band{background:var(--bg-soft)}
.section-head{max-width:760px;margin-bottom:clamp(28px,3.4vw,46px)}
.section-head h2{font-size:clamp(24px,2.6vw,32px);line-height:1.25}
.section-head p{margin-top:14px;color:var(--text-muted);font-size:15.5px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.06em;color:var(--primary);
  border:1px solid rgba(23,224,165,.34);background:rgba(23,224,165,.10);
  padding:5px 12px;border-radius:999px;margin-bottom:16px;font-weight:600;
}
.eyebrow.warm{color:var(--accent);border-color:rgba(255,138,61,.34);background:rgba(255,138,61,.10)}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  border-bottom:1px solid transparent;
  background:rgba(10,14,18,.72);
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.site-header.scrolled{
  background:rgba(10,14,18,.86);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
  box-shadow:0 12px 30px rgba(0,0,0,.38);
}
.header-inner{display:flex;align-items:center;gap:clamp(16px,2.4vw,32px);min-height:74px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand:hover{text-decoration:none}
.brand-mark{
  width:30px;height:30px;border-radius:9px;position:relative;flex:0 0 auto;
  background:linear-gradient(140deg,rgba(23,224,165,.9),rgba(15,185,138,.35));
  box-shadow:0 0 0 1px rgba(23,224,165,.45),0 8px 20px rgba(23,224,165,.22);
  display:inline-flex;align-items:center;justify-content:center;
}
.brand-mark::before{
  content:"";position:absolute;inset:0;border-radius:9px;
  background:repeating-linear-gradient(90deg,rgba(10,14,18,.85) 0 1px,transparent 1px 4px);
  opacity:.55;
}
.brand-mark span{width:8px;height:8px;border-radius:50%;background:#07120E;position:relative;z-index:1}
.brand-text{font-weight:700;font-size:16px;color:var(--text);letter-spacing:.01em}
.nav-links{display:flex;align-items:center;gap:clamp(6px,1.4vw,18px);margin-left:auto}
.nav-link-item{
  position:relative;display:inline-flex;align-items:center;
  padding:10px 6px;font-size:14.5px;color:var(--text-muted);font-weight:500;
  border-radius:10px;white-space:nowrap;
}
.nav-link-item:hover{color:var(--text);text-decoration:none}
.nav-link-item.active{color:var(--text)}
.nav-link-item.active::after{
  content:"";position:absolute;left:6px;right:6px;bottom:2px;height:2px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 12px rgba(23,224,165,.85);
}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.btn-glow{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:999px;border:1px solid transparent;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  color:#06231A;font-weight:700;font-size:14.5px;
  box-shadow:0 10px 26px rgba(23,224,165,.26);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),filter var(--dur) var(--ease);
}
.btn-glow:hover{color:#06231A;text-decoration:none;transform:translateY(-2px);box-shadow:0 16px 34px rgba(23,224,165,.38);filter:brightness(1.05)}
.btn-glow:active{transform:translateY(0)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:12px;
  border:1px solid var(--line);background:var(--surface);color:var(--text);
  font-weight:600;font-size:14.5px;
  transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.btn-ghost:hover{color:var(--text);text-decoration:none;border-color:rgba(23,224,165,.5);background:var(--surface-2);transform:translateY(-2px)}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:var(--surface);color:var(--text);font-size:16px;
}
.nav-toggle:hover{border-color:rgba(23,224,165,.45)}
@media (max-width:991.98px){
  .nav-links{display:none}
  .header-cta{display:none}
  .nav-toggle{display:inline-flex}
  .header-inner{min-height:66px}
}

/* 移动抽屉 */
.offcanvas.rl-drawer{
  background:linear-gradient(180deg,#0E141A,#0A0E12);
  color:var(--text);border-left:1px solid var(--line);width:min(88vw,340px);
}
.rl-drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px}
.rl-drawer .offcanvas-body{padding:20px}
.drawer-nav{display:flex;flex-direction:column;gap:6px;margin-bottom:22px}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:46px;padding:0 14px;border-radius:12px;
  color:var(--text-muted);font-size:15px;border:1px solid transparent;
}
.drawer-nav a:hover{color:var(--text);background:var(--surface);text-decoration:none;border-color:var(--line)}
.drawer-nav a.active{color:var(--text);background:rgba(23,224,165,.12);border-color:rgba(23,224,165,.32)}
.drawer-note{font-size:13px;color:var(--text-muted);line-height:1.7;padding:14px;border-radius:12px;background:var(--surface);border:1px solid var(--line)}

/* ============ 页头带 ============ */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.page-hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  transform:scale(1.02);
}
.page-hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(10,14,18,.95) 0%,rgba(10,14,18,.86) 46%,rgba(10,14,18,.72) 100%);
}
.page-hero-inner{position:relative;z-index:2;padding:clamp(56px,7vw,96px) 0 clamp(44px,5vw,72px)}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--text-muted);margin-bottom:20px}
.crumb a{color:var(--text-muted)}
.crumb a:hover{color:var(--primary)}
.crumb span.sep{opacity:.5}
.page-hero h1{font-size:clamp(30px,4.2vw,46px);line-height:1.16;max-width:19em}
.page-hero .lead{margin-top:20px;max-width:720px;color:#C7D2DA;font-size:16.5px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.scale-bar{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;
  margin-top:38px;border:1px solid var(--line);border-radius:16px;overflow:hidden;
  background:var(--line);max-width:860px;
}
.scale-bar .unit{background:rgba(12,17,22,.82);padding:16px 18px}
.scale-bar .num{
  font-size:clamp(20px,2.2vw,26px);font-weight:700;color:var(--primary);
  font-variant-numeric:tabular-nums;letter-spacing:.02em;line-height:1.2;
}
.scale-bar .num.warm{color:var(--accent)}
.scale-bar .lab{font-size:12.5px;color:var(--text-muted);letter-spacing:.04em;margin-top:6px}
@media (max-width:767.98px){.scale-bar{grid-template-columns:repeat(2,minmax(0,1fr))}}

/* ============ 刻度时间轴 ============ */
.timeline{position:relative;margin-top:12px}
.tl-item{
  position:relative;display:grid;grid-template-columns:88px minmax(0,1fr);gap:clamp(16px,2.4vw,30px);
  padding-bottom:clamp(26px,3vw,40px);
}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:43px;top:64px;bottom:0;width:1px;
  background:linear-gradient(180deg,rgba(23,224,165,.55),rgba(255,255,255,.05));
}
.tl-item:last-child::before{display:none}
.tl-num{
  width:64px;height:64px;border-radius:16px;display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:19px;font-variant-numeric:tabular-nums;color:var(--primary);
  border:1px solid rgba(23,224,165,.34);background:rgba(23,224,165,.09);
  box-shadow:0 0 0 6px rgba(10,14,18,.9);
  position:relative;z-index:2;
}
.tl-card{
  border:1px solid var(--line);border-radius:var(--radius-card);background:var(--surface);
  padding:clamp(18px,2.2vw,26px);box-shadow:var(--shadow-card);
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.tl-card:hover{transform:translateY(-3px);border-color:rgba(23,224,165,.42);box-shadow:0 22px 46px rgba(0,0,0,.5)}
.tl-card h3{font-size:20px;line-height:1.35}
.tl-card p{margin-top:10px;color:var(--text-muted);font-size:15px}
.tl-points{margin-top:14px;display:grid;gap:8px}
.tl-points li{position:relative;padding-left:18px;font-size:14.5px;color:#C7D2DA}
.tl-points li::before{
  content:"";position:absolute;left:0;top:.72em;width:7px;height:7px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 10px rgba(23,224,165,.6);
}
@media (max-width:575.98px){
  .tl-item{grid-template-columns:56px minmax(0,1fr);gap:14px}
  .tl-item::before{left:27px;top:56px}
  .tl-num{width:52px;height:52px;font-size:17px;border-radius:14px}
}

/* ============ 对照表 ============ */
.table-scroll{
  border:1px solid var(--line);border-radius:var(--radius-card);overflow:auto hidden;
  background:var(--surface);box-shadow:var(--shadow-card);-webkit-overflow-scrolling:touch;
}
.diag-table{width:100%;min-width:820px;border-collapse:collapse}
.diag-table th,.diag-table td{padding:16px 20px;text-align:left;border-bottom:1px solid var(--line);font-size:15px;vertical-align:top}
.diag-table thead th{
  background:rgba(255,255,255,.055);color:var(--text-muted);font-weight:600;
  font-size:12.5px;letter-spacing:.06em;
}
.diag-table tbody tr:nth-child(even){background:rgba(255,255,255,.018)}
.diag-table tbody tr:hover{background:rgba(23,224,165,.055)}
.diag-table tbody tr:last-child td{border-bottom:0}
.diag-table th:first-child,.diag-table td:first-child{
  position:sticky;left:0;z-index:2;background:#101619;min-width:180px;font-weight:600;color:var(--text);
}
.diag-table thead th:first-child{background:#161D24}
.diag-table td .tag{
  display:inline-block;margin:0 6px 6px 0;padding:2px 10px;border-radius:999px;font-size:12.5px;
  color:var(--primary);border:1px solid rgba(23,224,165,.32);background:rgba(23,224,165,.10);
}
.table-hint{margin-top:14px;font-size:13px;color:var(--text-muted)}

/* ============ 快查清单 ============ */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
@media (min-width:1200px){.grid-3,.grid-2{gap:28px}}
@media (max-width:991.98px){.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:767.98px){.grid-3,.grid-2{grid-template-columns:minmax(0,1fr)}}
.check-card{
  border:1px solid var(--line);border-radius:var(--radius-card);background:var(--surface);
  padding:24px;box-shadow:var(--shadow-card);position:relative;overflow:hidden;
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.check-card:hover{transform:translateY(-3px);border-color:rgba(23,224,165,.4)}
.check-card .ic{
  width:44px;height:44px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  background:rgba(23,224,165,.10);border:1px solid rgba(23,224,165,.3);color:var(--primary);font-size:17px;margin-bottom:16px;
}
.check-card h3{font-size:18px;line-height:1.4}
.check-card p{margin-top:10px;color:var(--text-muted);font-size:14.5px}
.check-card .tick{margin-top:14px;font-size:13px;color:var(--accent);font-variant-numeric:tabular-nums;letter-spacing:.04em}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:minmax(0,1fr);gap:24px}
.rl-accordion .accordion-item{
  position:relative;border:0;border-bottom:1px solid var(--line);background:transparent;
}
.rl-accordion .accordion-item:first-child{border-top:1px solid var(--line)}
.rl-accordion .accordion-item::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;border-radius:3px;
  background:var(--primary);box-shadow:0 0 12px rgba(23,224,165,.6);
  opacity:0;transform:scaleY(.4);transform-origin:top;
  transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.rl-accordion .accordion-item.open::before{opacity:1;transform:scaleY(1)}
.rl-accordion .accordion-button{
  background:transparent;color:var(--text);font-weight:600;font-size:16.5px;line-height:1.5;
  padding:22px 48px 22px 18px;box-shadow:none;border-radius:0;
}
.rl-accordion .accordion-button:not(.collapsed){color:var(--primary);background:rgba(23,224,165,.045)}
.rl-accordion .accordion-button:focus{box-shadow:none;border-color:transparent}
.rl-accordion .accordion-button::after{
  width:9px;height:9px;background-image:none;margin-left:auto;
  border-right:2px solid var(--text-muted);border-bottom:2px solid var(--text-muted);
  transform:rotate(45deg);transform-origin:center;
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.rl-accordion .accordion-button:not(.collapsed)::after{transform:rotate(-135deg);border-color:var(--primary)}
.rl-accordion .accordion-body{padding:0 24px 24px 18px;color:var(--text-muted);font-size:15px}
.rl-accordion .accordion-body strong{color:var(--text);font-weight:600}
.faq-panel{
  border:1px solid var(--line);border-radius:var(--radius-card);background:var(--surface);
  box-shadow:var(--shadow-card);overflow:hidden;
}

/* ============ 相关分类 ============ */
.cat-link{
  display:flex;gap:16px;align-items:flex-start;padding:18px;border-radius:16px;
  border:1px solid var(--line);background:var(--surface);
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.cat-link:hover{transform:translateY(-3px);border-color:rgba(23,224,165,.42);background:var(--surface-2);text-decoration:none}
.cat-link img{width:96px;height:66px;object-fit:cover;border-radius:12px;flex:0 0 auto;border:1px solid var(--line)}
.cat-link .txt b{display:block;color:var(--text);font-size:16px;font-weight:700;line-height:1.4}
.cat-link .txt span{display:block;margin-top:6px;color:var(--text-muted);font-size:14px}
.cat-link .txt em{margin-top:8px;font-style:normal;font-size:12.5px;color:var(--primary);letter-spacing:.04em}

/* ============ CTA 条 ============ */
.cta-band{
  border:1px solid var(--line);border-radius:24px;padding:clamp(28px,4vw,48px);
  background:
    radial-gradient(600px 200px at 88% 0%,rgba(23,224,165,.14),transparent 65%),
    linear-gradient(135deg,rgba(255,255,255,.05),rgba(255,255,255,.02));
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
  box-shadow:var(--shadow-card);
}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);line-height:1.3;max-width:22em}
.cta-band p{margin-top:12px;color:var(--text-muted);font-size:15px;max-width:46em}
.cta-band .acts{display:flex;flex-wrap:wrap;gap:14px}

/* ============ 页脚 ============ */
.site-footer{border-top:1px solid var(--line);background:var(--bg-soft);padding:clamp(40px,5vw,68px) 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:clamp(22px,3vw,40px)}
@media (max-width:991.98px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:575.98px){.footer-grid{grid-template-columns:minmax(0,1fr)}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand b{font-size:16px;color:var(--text)}
.footer-col p{color:var(--text-muted);font-size:14px;line-height:1.8}
.footer-col h3{font-size:14px;color:var(--text);margin-bottom:16px;letter-spacing:.06em}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{color:var(--text-muted);font-size:14px}
.footer-links a:hover{color:var(--primary)}
.footer-info{display:flex;flex-direction:column;gap:10px;color:var(--text-muted);font-size:14px}
.footer-info i{color:var(--primary);margin-right:8px;width:16px;text-align:center}
.footer-bottom{
  margin-top:clamp(28px,3vw,44px);padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  color:var(--text-muted);font-size:13px;
}
.to-top{
  display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:0 18px;border-radius:999px;
  border:1px solid var(--line);background:var(--surface);color:var(--text-muted);font-size:13.5px;
  transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.to-top:hover{color:var(--primary);border-color:rgba(23,224,165,.45);transform:translateY(-2px)}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important}
}

/* roulang page: category5 */
:root{
  --bg:#0A0E12;
  --bg-soft:#12171D;
  --surface:rgba(255,255,255,.045);
  --surface-2:rgba(255,255,255,.07);
  --line:rgba(255,255,255,.10);
  --text:#E8EEF2;
  --text-muted:#9AA7B2;
  --primary:#17E0A5;
  --primary-2:#0FB98A;
  --accent:#FF8A3D;
  --danger:#FF5C6C;
  --radius-card:18px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow-card:0 18px 40px rgba(0,0,0,.45);
  --shadow-glow:0 0 0 1px rgba(23,224,165,.35), 0 12px 30px rgba(23,224,165,.16);
  --ease:cubic-bezier(.22,.61,.36,1);
  --section-y:clamp(56px,7vw,104px);
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color 220ms var(--ease);}
a:hover{color:var(--primary-2);text-decoration:underline;text-underline-offset:4px;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:.2px;}
p{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}

.rl-container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px;}
@media (min-width:768px){.rl-container{padding:0 24px;}}
@media (min-width:1200px){.rl-container{padding:0 32px;}}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(10,14,18,.72);
  border-bottom:1px solid transparent;
  transition:background 220ms var(--ease),border-color 220ms var(--ease),backdrop-filter 220ms var(--ease);
}
.site-header.is-scrolled{
  background:rgba(10,14,18,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.header-inner{display:flex;align-items:center;gap:28px;min-height:74px;}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:700;font-size:17px;letter-spacing:.4px;flex:0 0 auto;}
.brand:hover{color:var(--text);text-decoration:none;}
.brand-mark{
  width:26px;height:26px;border-radius:8px;flex:0 0 auto;
  background:linear-gradient(140deg,var(--primary),var(--primary-2));
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 0 0 1px rgba(23,224,165,.35),0 6px 16px rgba(23,224,165,.25);
}
.brand-mark span{width:11px;height:2px;background:#06120E;border-radius:2px;box-shadow:0 -4px 0 #06120E,0 4px 0 #06120E;display:block;}
.nav-links{display:none;align-items:center;gap:28px;margin:0;}
@media (min-width:1100px){.nav-links{display:flex;}}
.nav-link-item{
  color:var(--text-muted);font-size:15px;font-weight:500;position:relative;padding:6px 2px;
  transition:color 220ms var(--ease);
}
.nav-link-item::after{
  content:"";position:absolute;left:50%;bottom:-2px;transform:translateX(-50%);
  width:0;height:2px;border-radius:2px;background:var(--primary);
  box-shadow:0 0 10px rgba(23,224,165,.8);
  transition:width 220ms var(--ease);
}
.nav-link-item:hover{color:var(--text);text-decoration:none;}
.nav-link-item:hover::after{width:60%;}
.nav-link-item.active{color:var(--text);}
.nav-link-item.active::after{width:70%;}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;flex:0 0 auto;}
.btn-glow{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 22px;border-radius:var(--radius-pill);
  background:linear-gradient(120deg,var(--primary),var(--primary-2));
  color:#06120E;font-weight:700;font-size:15px;border:1px solid transparent;
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),filter 220ms var(--ease);
  box-shadow:0 10px 26px rgba(23,224,165,.22);
  min-height:44px;
}
.btn-glow:hover{color:#06120E;text-decoration:none;transform:translateY(-2px);box-shadow:0 14px 32px rgba(23,224,165,.34);filter:brightness(1.04);}
.btn-glow:active{transform:translateY(0);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 20px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:var(--surface);
  color:var(--text);font-weight:600;font-size:15px;min-height:44px;
  transition:border-color 220ms var(--ease),background 220ms var(--ease),transform 220ms var(--ease);
}
.btn-ghost:hover{color:var(--text);text-decoration:none;border-color:rgba(23,224,165,.5);background:var(--surface-2);transform:translateY(-2px);}
.menu-toggle{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:var(--surface);color:var(--text);display:inline-flex;align-items:center;justify-content:center;font-size:17px;
  transition:border-color 220ms var(--ease),background 220ms var(--ease);
}
.menu-toggle:hover{border-color:rgba(23,224,165,.5);background:var(--surface-2);}
@media (min-width:1100px){.menu-toggle{display:none;}}
.header-cta-desktop{display:none;}
@media (min-width:768px){.header-cta-desktop{display:inline-flex;}}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(4,7,10,.66);backdrop-filter:blur(3px);
  opacity:0;visibility:hidden;transition:opacity 220ms var(--ease),visibility 220ms var(--ease);z-index:1040;
}
.drawer-mask.show{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:min(86vw,360px);z-index:1050;
  background:rgba(16,21,26,.94);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-left:1px solid var(--line);padding:22px 20px 32px;
  transform:translateX(102%);transition:transform 260ms var(--ease);
  overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:var(--surface);color:var(--text);}
.drawer-links{display:flex;flex-direction:column;gap:4px;margin-bottom:22px;}
.drawer-links a{
  color:var(--text);font-size:16px;font-weight:600;padding:13px 12px;border-radius:12px;
  border:1px solid transparent;min-height:44px;display:flex;align-items:center;justify-content:space-between;
}
.drawer-links a:hover,.drawer-links a.active{background:var(--surface-2);border-color:var(--line);text-decoration:none;}
.drawer-links a.active{color:var(--primary);}
.drawer-contact{border-top:1px solid var(--line);padding-top:18px;color:var(--text-muted);font-size:14px;display:flex;flex-direction:column;gap:10px;}
.drawer-contact i{color:var(--primary);margin-right:8px;}

/* ---------- breadcrumb ---------- */
.crumb-bar{border-bottom:1px solid var(--line);background:var(--bg-soft);}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:14px 0;font-size:13.5px;color:var(--text-muted);}
.crumb a{color:var(--text-muted);}
.crumb a:hover{color:var(--primary);text-decoration:none;}
.crumb .sep{opacity:.5;}
.crumb .now{color:var(--text);}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:clamp(56px,7vw,96px) 0 clamp(46px,5vw,72px);
  background-image:linear-gradient(180deg,rgba(10,14,18,.78),rgba(10,14,18,.92)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(600px 300px at 88% 10%,rgba(23,224,165,.16),transparent 70%);
}
.page-hero .rl-container{position:relative;z-index:1;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:var(--radius-pill);
  border:1px solid rgba(23,224,165,.35);background:rgba(23,224,165,.10);
  color:var(--primary);font-size:12.5px;letter-spacing:.06em;font-weight:600;margin-bottom:18px;
}
.page-hero h1{
  font-size:clamp(30px,4.2vw,46px);line-height:1.16;max-width:900px;margin-bottom:16px;
}
.page-hero h1 em{font-style:normal;color:var(--primary);}
.hero-lead{max-width:760px;color:var(--text-muted);font-size:16px;line-height:1.85;}
.metric-strip{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:32px;
}
@media (min-width:768px){.metric-strip{grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}}
.metric{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:16px 18px;
}
.metric b{
  display:block;font-size:clamp(20px,2.4vw,26px);font-weight:700;color:var(--text);
  font-variant-numeric:tabular-nums;letter-spacing:.5px;
}
.metric span{display:block;margin-top:4px;font-size:12.5px;color:var(--text-muted);letter-spacing:.06em;}

/* ---------- section basics ---------- */
.section{padding:var(--section-y) 0;}
.section-soft{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.sec-head{max-width:760px;margin-bottom:clamp(28px,3.4vw,44px);}
.sec-kicker{
  display:inline-block;font-size:12.5px;letter-spacing:.08em;font-weight:700;
  color:var(--accent);margin-bottom:12px;
}
.sec-head h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:12px;}
.sec-head p{color:var(--text-muted);font-size:15.5px;}

/* ---------- 两栏布局 ---------- */
.split{display:grid;grid-template-columns:1fr;gap:28px;}
@media (min-width:1024px){.split{grid-template-columns:minmax(0,7.6fr) minmax(0,4.4fr);gap:32px;align-items:start;}}
.sidebar-sticky{position:static;}
@media (min-width:1024px){
  .sidebar-sticky{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px;}
}

/* ---------- 图卡区块 ---------- */
.feature-row{display:grid;grid-template-columns:1fr;gap:22px;align-items:center;}
@media (min-width:768px){.feature-row{grid-template-columns:1fr 1fr;gap:30px;}}
.feature-media{border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-card);}
.feature-media img{width:100%;height:100%;aspect-ratio:16/10;object-fit:cover;transition:transform 320ms var(--ease);}
.feature-media:hover img{transform:scale(1.03);}
.point-list{display:flex;flex-direction:column;gap:16px;margin-top:6px;}
.point-list li{display:flex;gap:14px;align-items:flex-start;}
.point-list .dot{
  flex:0 0 auto;width:10px;height:10px;border-radius:3px;margin-top:9px;
  background:linear-gradient(140deg,var(--primary),var(--primary-2));
  box-shadow:0 0 10px rgba(23,224,165,.5);
}
.point-list b{display:block;font-size:16px;margin-bottom:2px;}
.point-list p{color:var(--text-muted);font-size:14.6px;}

/* ---------- 公告类别行 ---------- */
.cat-rows{display:flex;flex-direction:column;gap:12px;}
.cat-row{
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;
  padding:18px 20px;border-radius:var(--radius-card);
  background:var(--surface);border:1px solid var(--line);
  transition:transform 220ms var(--ease),border-color 220ms var(--ease),background 220ms var(--ease);
}
.cat-row:hover{transform:translateY(-3px);border-color:rgba(23,224,165,.45);background:var(--surface-2);}
.cat-row .idx{
  font-variant-numeric:tabular-nums;font-weight:700;font-size:15px;color:var(--primary);
  min-width:44px;letter-spacing:.06em;
}
.cat-row .txt{flex:1 1 260px;min-width:0;}
.cat-row .txt b{font-size:16.5px;}
.cat-row .txt p{color:var(--text-muted);font-size:14.4px;margin-top:2px;}
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--radius-pill);
  border:1px solid rgba(23,224,165,.35);background:rgba(23,224,165,.10);
  color:var(--primary);font-size:12.5px;letter-spacing:.06em;font-weight:600;white-space:nowrap;
}
.badge-warm{border-color:rgba(255,138,61,.38);background:rgba(255,138,61,.12);color:var(--accent);}

/* ---------- 发布条目 ---------- */
.notice-list{display:flex;flex-direction:column;gap:12px;}
.notice-item{
  display:block;padding:20px 22px;border-radius:var(--radius-card);
  background:var(--surface);border:1px solid var(--line);
  transition:transform 220ms var(--ease),border-color 220ms var(--ease),box-shadow 220ms var(--ease);
}
.notice-item:hover{transform:translateY(-3px);border-color:rgba(23,224,165,.45);box-shadow:var(--shadow-card);text-decoration:none;}
.notice-top{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:10px;}
.notice-item h3{font-size:17px;color:var(--text);line-height:1.4;}
.notice-item p{color:var(--text-muted);font-size:14.6px;margin-top:6px;}
.notice-meta{display:flex;flex-wrap:wrap;gap:14px;margin-top:12px;font-size:13px;color:var(--text-muted);font-variant-numeric:tabular-nums;}
.notice-meta i{color:var(--primary);margin-right:6px;}

/* ---------- FAQ ---------- */
.faq-wrap{
  border-radius:var(--radius-card);border:1px solid var(--line);
  background:var(--surface);box-shadow:var(--shadow-card);overflow:hidden;
}
.faq-item + .faq-item{border-top:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:19px 22px;background:transparent;border:0;color:var(--text);
  font-size:16.2px;font-weight:600;text-align:left;cursor:pointer;min-height:44px;
  transition:color 220ms var(--ease),background 220ms var(--ease);
  position:relative;
}
.faq-q::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;
  background:var(--primary);opacity:0;transition:opacity 220ms var(--ease);
}
.faq-q:hover{background:var(--surface-2);}
.faq-q .chev{flex:0 0 auto;color:var(--text-muted);transition:transform 260ms var(--ease),color 220ms var(--ease);}
.faq-item.open .faq-q{color:var(--primary);}
.faq-item.open .faq-q::before{opacity:1;}
.faq-item.open .chev{transform:rotate(180deg);color:var(--primary);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 300ms var(--ease);}
.faq-a p{padding:0 22px 20px 22px;color:var(--text-muted);font-size:15px;}
.faq-item.open .faq-a{max-height:320px;}

/* ---------- 侧栏 ---------- */
.side-card{
  border-radius:var(--radius-card);border:1px solid var(--line);
  background:var(--surface);padding:22px;box-shadow:var(--shadow-card);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
}
.side-card h3{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-card h3 i{color:var(--primary);}
.side-nav{display:flex;flex-direction:column;gap:4px;}
.side-nav a{
  display:flex;align-items:center;gap:10px;color:var(--text-muted);
  padding:10px 12px;border-radius:10px;font-size:14.6px;min-height:44px;
  border:1px solid transparent;transition:all 220ms var(--ease);
}
.side-nav a:hover{color:var(--text);background:var(--surface-2);border-color:var(--line);text-decoration:none;transform:translateX(2px);}
.side-nav a span{font-variant-numeric:tabular-nums;color:var(--primary);font-size:12.5px;letter-spacing:.06em;}
.side-links{display:flex;flex-direction:column;gap:10px;margin-top:4px;}
.side-links a{font-size:14.6px;display:flex;align-items:center;gap:8px;}
.side-links a i{font-size:12px;color:var(--primary);}
.side-note{margin-top:14px;padding-top:14px;border-top:1px solid var(--line);color:var(--text-muted);font-size:13.4px;}

/* ---------- 订阅表单 ---------- */
.sub-form{display:flex;flex-direction:column;gap:10px;}
@media (min-width:520px){.sub-form{flex-direction:row;align-items:center;}}
.form-control-rl{
  width:100%;padding:12px 16px;border-radius:var(--radius-sm);
  background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--text);
  font-size:15px;min-height:46px;transition:border-color 220ms var(--ease),box-shadow 220ms var(--ease),background 220ms var(--ease);
}
.form-control-rl::placeholder{color:#6C7A85;}
.form-control-rl:focus{outline:none;border-color:var(--primary);background:rgba(23,224,165,.06);box-shadow:0 0 0 3px rgba(23,224,165,.16);}
.btn-ghost.small{padding:11px 18px;font-size:14.6px;border-radius:var(--radius-pill);}
.privacy-note{margin-top:10px;font-size:12.5px;color:var(--text-muted);letter-spacing:.02em;line-height:1.7;}

/* ---------- 相关分类 ---------- */
.rel-grid{display:grid;grid-template-columns:1fr;gap:18px;}
@media (min-width:576px){.rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:992px){.rel-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}
.rel-card{
  display:block;border-radius:var(--radius-card);border:1px solid var(--line);
  background:var(--surface);padding:22px;color:var(--text);
  transition:transform 220ms var(--ease),border-color 220ms var(--ease),box-shadow 220ms var(--ease);
}
.rel-card:hover{transform:translateY(-3px);border-color:rgba(23,224,165,.45);box-shadow:var(--shadow-card);text-decoration:none;color:var(--text);}
.rel-card .rel-ico{
  width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(23,224,165,.10);border:1px solid rgba(23,224,165,.3);color:var(--primary);margin-bottom:14px;
}
.rel-card h3{font-size:16.5px;margin-bottom:8px;}
.rel-card p{color:var(--text-muted);font-size:14.4px;}
.rel-card .more{display:inline-flex;align-items:center;gap:6px;margin-top:14px;color:var(--primary);font-size:14px;font-weight:600;}

/* ---------- CTA 条 ---------- */
.cta-band{
  border-radius:var(--radius-card);border:1px solid var(--line);
  background:linear-gradient(120deg,rgba(23,224,165,.12),rgba(255,138,61,.08));
  padding:clamp(28px,4vw,48px);
  display:grid;grid-template-columns:1fr;gap:24px;align-items:center;
}
@media (min-width:992px){.cta-band{grid-template-columns:minmax(0,1fr) auto;}}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:10px;}
.cta-band p{color:var(--text-muted);font-size:15.4px;max-width:640px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-soft);border-top:1px solid var(--line);margin-top:8px;padding:clamp(48px,6vw,72px) 0 26px;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:30px;}
@media (min-width:576px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:992px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand b{font-size:16.5px;}
.footer-col p{color:var(--text-muted);font-size:14.4px;max-width:340px;}
.footer-col h3{font-size:14.5px;color:var(--text);margin-bottom:16px;letter-spacing:.04em;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{color:var(--text-muted);font-size:14.4px;}
.footer-links a:hover{color:var(--primary);text-decoration:none;}
.footer-info{display:flex;flex-direction:column;gap:11px;color:var(--text-muted);font-size:14.2px;}
.footer-info i{color:var(--primary);margin-right:8px;width:16px;text-align:center;}
.footer-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  color:var(--text-muted);font-size:13.4px;
}
.to-top{
  display:inline-flex;align-items:center;gap:8px;min-height:44px;
  padding:10px 18px;border-radius:var(--radius-pill);
  border:1px solid var(--line);background:var(--surface);color:var(--text);font-size:13.6px;
  transition:border-color 220ms var(--ease),background 220ms var(--ease),transform 220ms var(--ease);
}
.to-top:hover{border-color:rgba(23,224,165,.5);background:var(--surface-2);transform:translateY(-2px);}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}