/* roulang page: index */
:root{
  --brand:#12E0B0;
  --brand-hover:#3BF0C6;
  --brand-press:#0BB98F;
  --accent:#FF8A3D;
  --bg:#070C11;
  --card:#0E1720;
  --surface:#0B1219;
  --text:#E8EEF3;
  --muted:#A9B8C6;
  --dim:#7B8C9B;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.10);
  --r-card:16px;
  --r-btn:12px;
  --r-pill:999px;
  --r-input:10px;
  --r-badge:6px;
  --r-img:12px;
  --sh-card:inset 0 1px 0 rgba(255,255,255,.04),0 12px 32px rgba(0,0,0,.45);
  --sh-card-hover:inset 0 1px 0 rgba(255,255,255,.06),0 18px 40px rgba(0,0,0,.55);
  --sh-pop:0 24px 64px rgba(0,0,0,.6);
  --t:240ms cubic-bezier(.2,.7,.3,1);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --mono:Inter,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.no-scroll{overflow:hidden;}
h1,h2,h3,h4,h5,h6{margin:0;font-weight:700;color:var(--text);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--brand);text-decoration:none;transition:color var(--t),background-color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);}
a:hover{color:var(--brand-hover);}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;
}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,select,textarea{font-family:inherit;font-size:15px;}
::selection{background:rgba(18,224,176,.3);color:#fff;}
.num,.rl-metric-num,.rl-stat-num,.rl-meta,.rl-date{font-family:var(--mono);font-variant-numeric:tabular-nums;}

/* ---------- Foundation 覆盖 ---------- */
.grid-container{max-width:1248px;margin:0 auto;padding-left:24px;padding-right:24px;width:100%;}
.grid-margin-x{margin-left:-12px;margin-right:-12px;}
.grid-margin-x>.cell{padding-left:12px;padding-right:12px;}
.button,button.button{background:none;color:inherit;border:0;padding:0;margin:0;border-radius:0;font-size:inherit;box-shadow:none;}
.accordion,.accordion-item,.accordion-title,.accordion-content{background:none;border:0;color:inherit;padding:0;margin:0;}
[type=text],[type=email],[type=tel],select,textarea{box-shadow:none;border-radius:var(--r-input);}
.reveal{border:0;}

/* ---------- 通用容器与板块 ---------- */
.rl-section{padding:88px 0;position:relative;}
.rl-section--tight{padding:64px 0;}
.rl-sec-head{max-width:760px;margin-bottom:32px;}
.rl-sec-index{
  display:inline-block;
  font-family:var(--mono);
  font-size:13px;
  letter-spacing:.18em;
  color:var(--brand);
  border:1px solid rgba(18,224,176,.35);
  border-radius:var(--r-badge);
  padding:2px 10px;
  margin-bottom:14px;
}
.rl-sec-head h2{
  font-size:clamp(24px,3vw,36px);
  line-height:1.25;
  letter-spacing:-.01em;
  position:relative;
  padding-left:16px;
  margin-bottom:12px;
}
.rl-sec-head h2::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;border-radius:2px;
  background:linear-gradient(180deg,var(--brand),rgba(18,224,176,.15));
}
.rl-sec-sub{color:var(--muted);font-size:15px;max-width:680px;}
.rl-divider{height:1px;background:linear-gradient(90deg,rgba(255,255,255,.12),rgba(255,255,255,0));}

/* ---------- 按钮 ---------- */
.rl-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  transition:transform var(--t),box-shadow var(--t),background-color var(--t),border-color var(--t),color var(--t);
  white-space:nowrap;
}
.rl-btn--primary{
  background:var(--brand);color:#04120F;border-radius:var(--r-pill);
  box-shadow:0 8px 24px rgba(18,224,176,.28);
}
.rl-btn--primary:hover{background:var(--brand-hover);color:#04120F;transform:translateY(-2px);box-shadow:0 12px 34px rgba(18,224,176,.42);}
.rl-btn--primary:active{background:var(--brand-press);transform:translateY(0);}
.rl-btn--ghost{
  border:1px solid rgba(18,224,176,.5);
  background:rgba(18,224,176,.08);
  color:var(--brand-hover);
}
.rl-btn--ghost:hover{background:rgba(18,224,176,.16);color:#fff;border-color:var(--brand);transform:translateY(-2px);}
.rl-btn--text{padding:0;height:auto;color:var(--brand);font-weight:600;}
.rl-btn--text i{transition:transform var(--t);}
.rl-btn--text:hover i{transform:translateX(4px);}
.rl-btn[disabled],.rl-btn.is-disabled{filter:saturate(.4);opacity:.6;pointer-events:none;}

/* ---------- 徽章 ---------- */
.rl-badge{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;
  border-radius:var(--r-badge);font-size:12px;font-weight:600;letter-spacing:.02em;
  background:rgba(18,224,176,.14);color:var(--brand-hover);border:1px solid rgba(18,224,176,.28);
}
.rl-badge--accent{background:rgba(255,138,61,.14);color:#FFB183;border-color:rgba(255,138,61,.3);}
.rl-badge--gray{background:rgba(255,255,255,.06);color:var(--muted);border-color:var(--line-2);}

/* ---------- 顶部导航 ---------- */
.rl-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  height:72px;display:flex;align-items:center;
  background:rgba(7,12,17,.82);
  border-bottom:1px solid transparent;
  transition:height var(--t),background-color var(--t),border-color var(--t),backdrop-filter var(--t);
}
.rl-header.is-scrolled{
  height:60px;
  background:rgba(9,15,21,.82);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.rl-nav-inner{display:flex;align-items:center;gap:20px;width:100%;}
.rl-logo{display:inline-flex;align-items:center;gap:10px;color:var(--text);flex-shrink:0;}
.rl-logo:hover{color:var(--text);}
.rl-logo-mark{
  width:34px;height:34px;border-radius:10px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--brand),#0A8E74);
  box-shadow:0 6px 18px rgba(18,224,176,.3);
}
.rl-logo-mark svg{width:19px;height:19px;fill:#04120F;}
.rl-logo-text{font-size:17px;font-weight:700;letter-spacing:.01em;white-space:nowrap;}
.rl-nav{margin-left:auto;}
.rl-nav ul{display:flex;align-items:center;gap:8px;}
.rl-nav a{
  display:inline-block;padding:8px 14px;border-radius:10px;
  color:var(--muted);font-size:15px;font-weight:500;position:relative;
}
.rl-nav a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform var(--t);
}
.rl-nav a:hover{color:var(--text);transform:translateY(-1px);}
.rl-nav a:hover::after{transform:scaleX(1);}
.rl-nav a.is-active{color:var(--brand);}
.rl-nav a.is-active::after{transform:scaleX(1);}
.rl-header-cta{margin-left:8px;height:38px;padding:0 18px;font-size:14px;}
.rl-burger{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--line-2);background:rgba(255,255,255,.03);
  align-items:center;justify-content:center;margin-left:auto;
}
.rl-burger span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;position:relative;}
.rl-burger span::before,.rl-burger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform var(--t),top var(--t);
}
.rl-burger span::before{top:-6px;}
.rl-burger span::after{top:6px;}
.rl-burger.is-open span{background:transparent;}
.rl-burger.is-open span::before{top:0;transform:rotate(45deg);}
.rl-burger.is-open span::after{top:0;transform:rotate(-45deg);}

/* 移动抽屉 */
.rl-drawer{
  position:fixed;inset:0;z-index:70;
  background:rgba(7,12,17,.97);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  padding:88px 24px 40px;
  transform:translateY(-100%);opacity:0;visibility:hidden;
  transition:transform 300ms cubic-bezier(.2,.7,.3,1),opacity 300ms ease,visibility 300ms;
  display:flex;flex-direction:column;
}
.rl-drawer.is-open{transform:translateY(0);opacity:1;visibility:visible;}
.rl-drawer a.rl-drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  height:48px;padding:0 4px;color:var(--text);font-size:16px;font-weight:600;
  border-bottom:1px solid var(--line);width:100%;
}
.rl-drawer a.rl-drawer-link i{color:var(--dim);font-size:13px;}
.rl-drawer a.rl-drawer-link.is-active{color:var(--brand);}
.rl-drawer .rl-btn{margin-top:24px;width:100%;}

/* 移动底部 Tab */
.rl-tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:65;
  height:60px;display:none;
  padding-bottom:env(safe-area-inset-bottom);
  background:rgba(11,18,25,.92);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-top:1px solid var(--line);
}
.rl-tabbar-inner{display:flex;height:60px;}
.rl-tabbar a{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
  color:var(--dim);font-size:10px;line-height:1.2;position:relative;
}
.rl-tabbar a i{font-size:18px;}
.rl-tabbar a::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%) scaleX(0);
  width:26px;height:3px;border-radius:0 0 3px 3px;background:var(--brand);transition:transform var(--t);
}
.rl-tabbar a.is-active{color:var(--brand);}
.rl-tabbar a.is-active::before{transform:translateX(-50%) scaleX(1);}

/* ---------- Hero ---------- */
.rl-hero{
  position:relative;overflow:hidden;
  min-height:min(100vh,720px);
  padding:132px 0 80px;
  display:flex;align-items:center;
}
.rl-hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  filter:brightness(.28) blur(2px);
  transform:scale(1.04);
}
.rl-hero-mask{
  position:absolute;inset:0;
  background:
    radial-gradient(58% 62% at 16% 32%,rgba(18,224,176,.22),rgba(18,224,176,0) 70%),
    radial-gradient(46% 50% at 88% 74%,rgba(255,138,61,.14),rgba(255,138,61,0) 72%),
    linear-gradient(180deg,rgba(7,12,17,.6),rgba(7,12,17,.92) 78%,var(--bg));
}
.rl-hero .grid-container{position:relative;z-index:2;}
.rl-hero-row{align-items:center;}
.rl-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.16em;color:var(--brand);
  border:1px solid rgba(18,224,176,.3);border-radius:var(--r-pill);
  padding:5px 14px;margin-bottom:22px;background:rgba(18,224,176,.06);
}
.rl-hero h1{
  font-size:clamp(30px,4.4vw,54px);
  line-height:1.15;letter-spacing:-.01em;font-weight:800;
  margin-bottom:18px;
}
.rl-hero h1 em{font-style:normal;color:var(--brand);}
.rl-hero-sub{color:var(--muted);font-size:clamp(15px,1.5vw,17px);max-width:520px;margin-bottom:30px;}
.rl-hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.rl-hero-badges{display:flex;flex-wrap:wrap;gap:10px;}
.rl-hero-badges span{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;color:var(--muted);
  border:1px solid var(--line-2);border-radius:var(--r-badge);
  padding:4px 10px;background:rgba(255,255,255,.03);
}
.rl-hero-badges span i{color:var(--brand);font-size:11px;}

.rl-glass{
  background:rgba(14,23,32,.55);
  border:1px solid rgba(255,255,255,.10);
  border-radius:var(--r-card);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--sh-pop);
}
.rl-hero-panel{padding:26px 24px;}
.rl-panel-head{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);letter-spacing:.08em;
  padding-bottom:16px;border-bottom:1px solid var(--line);margin-bottom:6px;
}
.rl-panel-head .dot{width:7px;height:7px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 4px rgba(18,224,176,.16);}
.rl-metric{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding:16px 0;border-bottom:1px solid var(--line);}
.rl-metric:last-child{border-bottom:0;padding-bottom:4px;}
.rl-metric-num{font-size:clamp(30px,3.2vw,42px);font-weight:700;color:var(--accent);line-height:1;}
.rl-metric-num small{font-size:14px;color:var(--muted);margin-left:4px;font-weight:500;}
.rl-metric-label{font-size:14px;color:var(--muted);}
.rl-panel-note{font-size:12px;color:var(--dim);margin-top:14px;}

/* ---------- 服务能力 ---------- */
.rl-serv-stack{display:grid;gap:24px;}
.rl-serv-col{display:grid;gap:24px;height:100%;}
.rl-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
  overflow:hidden;
}
.rl-card:hover{transform:translateY(-4px);box-shadow:var(--sh-card-hover);border-color:rgba(18,224,176,.32);}
.rl-card-media{position:relative;height:160px;overflow:hidden;}
.rl-card-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform var(--t);}
.rl-card:hover .rl-card-media img{transform:scale(1.03);}
.rl-card-media::after{
  content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(18,224,176,.12),rgba(7,12,17,.55));
}
.rl-card-body{padding:24px;}
.rl-card-body h3{font-size:20px;line-height:1.35;margin-bottom:10px;}
.rl-card-body p{color:var(--muted);font-size:14px;line-height:1.8;margin-bottom:16px;}
.rl-card-icon{
  width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(18,224,176,.1);border:1px solid rgba(18,224,176,.28);color:var(--brand);
  margin-bottom:14px;font-size:16px;
}
.rl-serv-tall{display:flex;flex-direction:column;}
.rl-serv-tall .rl-card-media{height:190px;}
.rl-serv-tall .rl-card-body{padding:22px;}
.rl-mini-list{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:8px 18px;box-shadow:var(--sh-card);
}
.rl-mini-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:14px 0;border-bottom:1px solid var(--line);
}
.rl-mini-list li:last-child{border-bottom:0;}
.rl-mini-list i{color:var(--brand);font-size:14px;margin-top:6px;}
.rl-mini-list strong{display:block;font-size:15px;font-weight:600;margin-bottom:2px;}
.rl-mini-list span{color:var(--muted);font-size:13px;line-height:1.7;}

/* ---------- 数据条 ---------- */
.rl-stats{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#0A1219,#070C11);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:56px 0;
}
.rl-stats::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:22px 22px;opacity:.7;pointer-events:none;
}
.rl-stats-grid{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.rl-stat{text-align:left;padding-left:18px;border-left:1px solid var(--line-2);}
.rl-stat-num{font-size:clamp(30px,3.4vw,42px);font-weight:700;line-height:1;color:var(--brand);}
.rl-stat:nth-child(even) .rl-stat-num{color:var(--accent);}
.rl-stat-num small{font-size:14px;color:var(--muted);margin-left:4px;font-weight:500;}
.rl-stat p{color:var(--muted);font-size:14px;margin-top:10px;}

/* ---------- 场景卡片轨 ---------- */
.rl-rail-wrap{position:relative;}
.rl-rail{
  display:flex;gap:20px;overflow-x:auto;padding:6px 4px 18px;
  scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
  scrollbar-width:thin;
}
.rl-rail::-webkit-scrollbar{height:6px;}
.rl-rail::-webkit-scrollbar-thumb{background:rgba(255,255,255,.12);border-radius:3px;}
.rl-rail-card{
  flex:0 0 calc(33.333% - 14px);scroll-snap-align:start;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-card);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.rl-rail-card:hover{transform:translateY(-4px);box-shadow:var(--sh-card-hover);border-color:rgba(18,224,176,.32);}
.rl-rail-card img{height:158px;width:100%;object-fit:cover;}
.rl-rail-body{padding:20px;}
.rl-rail-body h3{font-size:17px;line-height:1.4;margin:10px 0 8px;}
.rl-rail-body p{color:var(--muted);font-size:13.5px;line-height:1.7;margin-bottom:12px;}
.rl-rail-wrap::after{
  content:"";position:absolute;right:0;top:0;bottom:18px;width:56px;pointer-events:none;
  background:linear-gradient(90deg,rgba(7,12,17,0),rgba(7,12,17,.9));
}

/* ---------- 流程 ---------- */
.rl-flow{display:grid;gap:0;}
.rl-flow-item{display:grid;grid-template-columns:56px 1fr;gap:18px;padding:0 0 26px;position:relative;}
.rl-flow-item::before{
  content:"";position:absolute;left:17px;top:44px;bottom:0;width:1px;
  background:linear-gradient(180deg,rgba(18,224,176,.5),rgba(255,255,255,.06));
}
.rl-flow-item:last-child{padding-bottom:0;}
.rl-flow-item:last-child::before{display:none;}
.rl-flow-num{
  width:36px;height:36px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:13px;font-weight:700;color:var(--brand);
  border:1px solid rgba(18,224,176,.45);background:rgba(18,224,176,.08);
}
.rl-flow-body h3{font-size:17px;margin-bottom:4px;}
.rl-flow-body p{color:var(--muted);font-size:14px;line-height:1.8;}
.rl-flow-visual{
  border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line-2);
  box-shadow:var(--sh-card);position:relative;height:100%;min-height:340px;
}
.rl-flow-visual img{width:100%;height:100%;object-fit:cover;min-height:340px;}
.rl-flow-caption{
  position:absolute;left:16px;right:16px;bottom:16px;
  padding:14px 16px;border-radius:12px;font-size:13px;color:var(--text);
  background:rgba(11,18,25,.72);border:1px solid var(--line-2);
  backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);
}

/* ---------- 资讯列表 ---------- */
.rl-filter{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px;}
.rl-filter button{
  height:34px;padding:0 16px;border-radius:var(--r-pill);
  font-size:13px;color:var(--muted);
  border:1px solid var(--line-2);background:rgba(255,255,255,.03);
  transition:all var(--t);
}
.rl-filter button:hover{color:var(--text);border-color:rgba(18,224,176,.35);}
.rl-filter button.is-active{background:rgba(18,224,176,.14);color:var(--brand-hover);border-color:rgba(18,224,176,.4);}
.rl-news-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-card);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.rl-news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-card-hover);border-color:rgba(18,224,176,.32);}
.rl-news-thumb{display:block;height:162px;overflow:hidden;}
.rl-news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--t);}
.rl-news-card:hover .rl-news-thumb img{transform:scale(1.03);}
.rl-news-body{padding:20px;display:flex;flex-direction:column;flex:1;}
.rl-news-body h3{font-size:17px;line-height:1.45;margin:12px 0 10px;font-weight:600;}
.rl-news-body h3 a{color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rl-news-body h3 a:hover{color:var(--brand);}
.rl-news-body p{
  color:var(--muted);font-size:13.5px;line-height:1.75;margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rl-news-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;padding-top:14px;border-top:1px solid var(--line);}
.rl-meta{font-size:12.5px;color:var(--dim);}
.rl-empty{
  text-align:center;padding:56px 24px;border:1px dashed var(--line-2);border-radius:var(--r-card);
  background:rgba(255,255,255,.02);
}
.rl-empty .frame{
  width:76px;height:56px;margin:0 auto 18px;border-radius:10px;
  border:1px solid var(--line-2);position:relative;background:rgba(255,255,255,.02);
}
.rl-empty .frame::before,.rl-empty .frame::after{
  content:"";position:absolute;background:rgba(255,255,255,.14);border-radius:2px;
}
.rl-empty .frame::before{left:12px;right:12px;top:14px;height:2px;}
.rl-empty .frame::after{left:12px;width:32px;top:28px;height:2px;}
.rl-empty p{color:var(--muted);font-size:14px;margin-bottom:18px;}

/* ---------- 反馈 ---------- */
.rl-quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.rl-quote{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-card);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.rl-quote:hover{transform:translateY(-4px);box-shadow:var(--sh-card-hover);border-color:rgba(18,224,176,.28);}
.rl-rate{display:flex;gap:4px;color:var(--accent);font-size:13px;margin-bottom:14px;}
.rl-quote p{font-size:14.5px;line-height:1.85;color:var(--text);margin-bottom:18px;}
.rl-quote-user{display:flex;align-items:center;gap:10px;padding-top:14px;border-top:1px solid var(--line);}
.rl-quote-avatar{
  width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:rgba(18,224,176,.12);color:var(--brand);font-size:14px;font-weight:700;
  border:1px solid rgba(18,224,176,.3);
}
.rl-quote-user strong{display:block;font-size:14px;}
.rl-quote-user span{font-size:12px;color:var(--dim);}

/* ---------- FAQ ---------- */
.rl-faq{max-width:760px;margin:0 auto;}
.rl-faq-item{border-bottom:1px solid var(--line);}
.rl-faq-q{
  width:100%;min-height:64px;display:flex;align-items:center;gap:16px;
  text-align:left;padding:14px 4px;transition:color var(--t);
}
.rl-faq-q:hover{color:var(--brand);}
.rl-faq-idx{font-family:var(--mono);font-size:13px;color:var(--brand);flex-shrink:0;width:26px;}
.rl-faq-text{flex:1;font-size:16px;font-weight:600;line-height:1.6;}
.rl-faq-icon{width:16px;height:16px;position:relative;flex-shrink:0;color:var(--muted);}
.rl-faq-icon::before,.rl-faq-icon::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;transition:transform var(--t),opacity var(--t);
}
.rl-faq-icon::before{left:0;right:0;top:7px;height:2px;}
.rl-faq-icon::after{top:0;bottom:0;left:7px;width:2px;}
.rl-faq-item.is-open .rl-faq-icon::after{transform:rotate(90deg);opacity:0;}
.rl-faq-item.is-open .rl-faq-q{color:var(--brand);}
.rl-faq-a{overflow:hidden;max-height:0;transition:max-height 320ms cubic-bezier(.2,.7,.3,1);}
.rl-faq-a p{color:var(--muted);font-size:14.5px;line-height:1.85;padding:0 4px 22px 42px;}

/* ---------- 联系 / CTA ---------- */
.rl-cta-panel{
  background:linear-gradient(150deg,rgba(18,224,176,.08),rgba(255,138,61,.05) 62%,rgba(14,23,32,.9));
  border:1px solid var(--line-2);border-radius:24px;
  padding:48px;position:relative;overflow:hidden;
}
.rl-cta-panel::before{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(18,224,176,.22),rgba(18,224,176,0) 70%);
}
.rl-cta-panel>*{position:relative;}
.rl-cta-panel h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:12px;}
.rl-cta-panel .lead{color:var(--muted);font-size:15px;margin-bottom:28px;max-width:460px;}
.rl-contact-list{display:grid;gap:16px;margin-bottom:26px;}
.rl-contact-list li{display:flex;gap:14px;align-items:flex-start;}
.rl-contact-list i{
  width:38px;height:38px;border-radius:10px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;font-size:15px;
  background:rgba(18,224,176,.1);border:1px solid rgba(18,224,176,.26);color:var(--brand);
}
.rl-contact-list strong{display:block;font-size:14px;font-weight:600;}
.rl-contact-list span{display:block;font-size:13px;color:var(--muted);line-height:1.7;}
.rl-form{
  background:var(--surface);border:1px solid var(--line-2);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-pop);
}
.rl-field{margin-bottom:16px;}
.rl-field label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px;}
.rl-field input,.rl-field select,.rl-field textarea{
  width:100%;height:46px;padding:0 14px;
  background:#0B1219;border:1px solid var(--line-2);border-radius:var(--r-input);
  color:var(--text);transition:border-color var(--t),box-shadow var(--t);appearance:none;
}
.rl-field textarea{height:104px;padding:12px 14px;line-height:1.7;resize:vertical;}
.rl-field select{background-image:none;}
.rl-field input::placeholder,.rl-field textarea::placeholder{color:#5E6E7C;}
.rl-field input:focus,.rl-field select:focus,.rl-field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(18,224,176,.12);
}
.rl-field.has-error input,.rl-field.has-error select,.rl-field.has-error textarea{border-color:var(--accent);box-shadow:0 0 0 3px rgba(255,138,61,.14);}
.rl-form-note{font-size:12px;color:var(--dim);margin-top:12px;}
.rl-form-msg{
  display:none;margin-top:14px;padding:12px 14px;border-radius:var(--r-input);font-size:13.5px;
  background:rgba(18,224,176,.1);border:1px solid rgba(18,224,176,.3);color:var(--brand-hover);
}
.rl-form-msg.is-visible{display:block;}

/* ---------- 页脚 ---------- */
.rl-footer{
  background:#05090D;border-top:1px solid var(--line);
  padding:64px 0 28px;margin-top:0;
}
.rl-footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;}
.rl-footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.rl-footer-brand .rl-logo-mark{width:30px;height:30px;border-radius:9px;}
.rl-footer-brand .rl-logo-mark svg{width:16px;height:16px;}
.rl-footer-brand strong{font-size:16px;}
.rl-footer p{color:var(--muted);font-size:13.5px;line-height:1.85;}
.rl-footer h4{font-size:14px;color:var(--text);margin-bottom:16px;letter-spacing:.04em;}
.rl-footer ul li{margin-bottom:10px;}
.rl-footer ul a{color:var(--muted);font-size:13.5px;}
.rl-footer ul a:hover{color:var(--brand);}
.rl-footer-contact li{display:flex;gap:10px;color:var(--muted);font-size:13.5px;margin-bottom:12px;line-height:1.7;}
.rl-footer-contact i{color:var(--brand);margin-top:5px;font-size:12px;}
.rl-footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:12.5px;color:var(--dim);
}
.rl-footer-bottom a{color:var(--dim);}
.rl-footer-bottom a:hover{color:var(--brand);}

/* ---------- 回到顶部 ---------- */
.rl-top{
  position:fixed;right:22px;bottom:26px;z-index:66;
  width:44px;height:44px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(14,23,32,.7);border:1px solid var(--line-2);color:var(--text);
  backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--sh-pop);opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity var(--t),transform var(--t),visibility var(--t),border-color var(--t);
}
.rl-top.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.rl-top:hover{border-color:rgba(18,224,176,.5);color:var(--brand);}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1280px){
  .grid-container{max-width:1100px;}
}
@media screen and (max-width:1024px){
  .rl-section{padding:72px 0;}
  .rl-nav a{padding:8px 10px;font-size:14.5px;}
  .rl-rail-card{flex:0 0 calc(50% - 10px);}
  .rl-stats-grid{grid-template-columns:repeat(2,1fr);gap:28px;}
  .rl-quote-grid{grid-template-columns:1fr 1fr;}
  .rl-footer-grid{grid-template-columns:1.2fr 1fr 1fr;gap:28px;}
}
@media screen and (max-width:768px){
  .grid-container{padding-left:16px;padding-right:16px;}
  .grid-margin-x{margin-left:-8px;margin-right:-8px;}
  .grid-margin-x>.cell{padding-left:8px;padding-right:8px;}
  .rl-nav{display:none;}
  .rl-header-cta{display:none;}
  .rl-burger{display:flex;}
  .rl-tabbar{display:block;}
  body{padding-bottom:76px;}
  .rl-section{padding:56px 0;}
  .rl-hero{padding:112px 0 64px;min-height:auto;}
  .rl-hero-badges{gap:8px;}
  .rl-hero-actions .rl-btn{width:100%;}
  .rl-hero-panel{margin-top:32px;}
  .rl-cta-panel{padding:28px 20px;border-radius:18px;}
  .rl-form{padding:20px;}
  .rl-rail-card{flex:0 0 82%;}
  .rl-quote-grid{grid-template-columns:1fr;}
  .rl-footer-grid{grid-template-columns:1fr;gap:26px;}
  .rl-footer{padding:48px 0 88px;}
  .rl-top{bottom:86px;right:16px;}
  .rl-faq-a p{padding-left:0;}
}
@media screen and (max-width:520px){
  .rl-logo-text{font-size:15px;}
  .rl-sec-head h2{font-size:23px;}
  .rl-card-body{padding:20px;}
  .rl-metric-num{font-size:30px;}
  .rl-stats{padding:40px 0;}
  .rl-stats-grid{gap:20px;}
  .rl-stat{padding-left:14px;}
  .rl-flow-item{grid-template-columns:44px 1fr;gap:14px;}
  .rl-flow-visual{min-height:220px;}
  .rl-flow-visual img{min-height:220px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}

/* roulang page: article */
:root{
  --brand:#12E0B0;
  --brand-hover:#3BF0C6;
  --brand-press:#0BB98F;
  --accent:#FF8A3D;
  --bg:#070C11;
  --card:#0E1720;
  --panel:#0B1219;
  --text:#E8EEF3;
  --muted:#A9B8C6;
  --weak:#7B8C9B;
  --line:rgba(255,255,255,.08);
  --border:rgba(255,255,255,.10);
  --r-card:16px;
  --r-btn:12px;
  --r-pill:999px;
  --r-input:10px;
  --r-badge:6px;
  --r-img:12px;
  --sh-card:0 1px 0 rgba(255,255,255,.04) inset, 0 12px 32px rgba(0,0,0,.45);
  --sh-card-hover:0 1px 0 rgba(255,255,255,.05) inset, 0 18px 40px rgba(0,0,0,.55);
  --sh-float:0 24px 64px rgba(0,0,0,.6);
  --ease:cubic-bezier(.2,.7,.3,1);
  --max:1200px;
  --nav-h:72px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  background-image:
    radial-gradient(900px 520px at 8% -10%, rgba(18,224,176,.10), transparent 60%),
    radial-gradient(760px 460px at 92% 4%, rgba(255,138,61,.07), transparent 62%);
  background-repeat:no-repeat;
}
a{color:inherit;text-decoration:none;transition:color 240ms var(--ease),opacity 240ms var(--ease);}
a:hover{color:var(--brand);}
img{max-width:100%;height:auto;display:block;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,select,textarea{font-family:inherit;font-size:16px;}
h1,h2,h3,h4{color:#fff;margin:0;font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
::selection{background:rgba(18,224,176,.28);}

.grid-container{max-width:var(--max);padding-left:20px;padding-right:20px;padding-top:0;padding-bottom:0;margin:0 auto;}
.grid-x{display:flex;flex-wrap:wrap;}
.cell{flex:0 0 auto;min-width:0;width:100%;}

/* ---------- header ---------- */
.rl-header{
  position:fixed;inset:0 0 auto 0;z-index:60;
  height:var(--nav-h);
  background:rgba(7,12,17,.86);
  border-bottom:1px solid var(--line);
  transition:height 240ms var(--ease), background 240ms var(--ease), border-color 240ms var(--ease);
}
.rl-header.is-scrolled{
  height:60px;
  background:rgba(9,15,21,.72);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom-color:var(--border);
}
.rl-header .grid-container{height:100%;}
.rl-header-inner{height:100%;display:flex;align-items:center;gap:24px;}
.rl-logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.rl-logo-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(18,224,176,.22),rgba(18,224,176,.04));
  border:1px solid rgba(18,224,176,.38);
  box-shadow:0 6px 18px rgba(18,224,176,.18);
}
.rl-logo-mark svg{width:20px;height:20px;fill:var(--brand);}
.rl-logo-text{font-size:17px;font-weight:700;letter-spacing:.01em;color:#fff;white-space:nowrap;}
.rl-nav{margin-left:auto;}
.rl-nav ul{display:flex;align-items:center;gap:6px;}
.rl-nav a{
  position:relative;display:inline-block;padding:22px 14px;
  font-size:15px;color:var(--muted);transition:color 240ms var(--ease),transform 240ms var(--ease);
}
.rl-nav a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:16px;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform 240ms var(--ease);
}
.rl-nav a:hover{color:#fff;transform:translateY(-1px);}
.rl-nav a:hover::after,.rl-nav a.is-active::after{transform:scaleX(1);}
.rl-nav a.is-active{color:var(--brand);}
.rl-header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.rl-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:all 240ms var(--ease);white-space:nowrap;
}
.rl-btn-primary{
  background:var(--brand);color:#04231B;border-radius:var(--r-pill);
  box-shadow:0 8px 24px rgba(18,224,176,.28);
}
.rl-btn-primary:hover{background:var(--brand-hover);color:#04231B;transform:translateY(-2px);box-shadow:0 12px 32px rgba(18,224,176,.42);}
.rl-btn-primary:active{background:var(--brand-press);transform:translateY(0);}
.rl-btn-ghost{
  border:1px solid rgba(18,224,176,.55);background:rgba(18,224,176,.08);color:var(--brand);
}
.rl-btn-ghost:hover{background:rgba(18,224,176,.16);color:var(--brand-hover);transform:translateY(-2px);}
.rl-btn-line{
  border:1px solid var(--border);background:rgba(255,255,255,.02);color:var(--text);
}
.rl-btn-line:hover{border-color:rgba(18,224,176,.4);color:var(--brand);transform:translateY(-2px);}
.rl-btn-sm{height:40px;padding:0 18px;font-size:14px;}
.rl-btn-block{width:100%;}
.rl-burger{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--border);
  background:rgba(255,255,255,.03);place-items:center;
}
.rl-burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);margin:3px auto;transition:all 240ms var(--ease);}

/* drawer */
.rl-drawer{
  position:fixed;inset:0;z-index:80;background:rgba(5,9,13,.97);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  padding:22px 22px 120px;overflow-y:auto;
  transform:translateY(-8px);opacity:0;visibility:hidden;transition:all 240ms var(--ease);
}
.rl-drawer.is-open{transform:translateY(0);opacity:1;visibility:visible;}
.rl-drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.rl-drawer-close{width:42px;height:42px;border-radius:10px;border:1px solid var(--border);display:grid;place-items:center;color:var(--muted);}
.rl-drawer nav a{
  display:flex;align-items:center;justify-content:space-between;
  height:48px;padding:0 14px;border-radius:12px;font-size:16px;color:var(--text);
  border-bottom:1px solid var(--line);
}
.rl-drawer nav a.is-active{color:var(--brand);}
.rl-drawer nav a:hover{background:rgba(255,255,255,.04);}
.rl-drawer .rl-btn{margin-top:22px;}

/* ---------- page head ---------- */
.rl-pagehead{
  position:relative;padding:calc(var(--nav-h) + 44px) 0 46px;
  background-image:linear-gradient(180deg,rgba(7,12,17,.72),rgba(7,12,17,.96)),url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.rl-pagehead::after{
  content:"";position:absolute;inset:auto 0 -1px 0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(18,224,176,.45),transparent);
}
.rl-crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--weak);}
.rl-crumb li{display:flex;align-items:center;gap:8px;}
.rl-crumb li + li::before{content:"›";color:rgba(255,255,255,.24);}
.rl-crumb a{color:var(--muted);}
.rl-crumb a:hover{color:var(--brand);}
.rl-crumb-current{
  display:inline-block;max-width:min(46vw,420px);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  color:var(--weak);vertical-align:bottom;
}
.rl-h1{
  font-size:clamp(28px,4vw,46px);line-height:1.18;font-weight:800;letter-spacing:-.015em;
  margin:22px 0 20px;max-width:900px;
}
.rl-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13px;color:var(--weak);}
.rl-badge{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:var(--r-badge);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.rl-badge-brand{background:rgba(18,224,176,.14);color:var(--brand);border:1px solid rgba(18,224,176,.30);}
.rl-badge-accent{background:rgba(255,138,61,.14);color:var(--accent);border:1px solid rgba(255,138,61,.30);}
.rl-badge-gray{background:rgba(255,255,255,.06);color:var(--muted);border:1px solid var(--border);}
.rl-meta-num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";font-family:Inter,system-ui,sans-serif;color:var(--accent);font-weight:600;}

/* ---------- layout ---------- */
.rl-section{padding:64px 0;}
.rl-layout{margin:0 -12px;}
.rl-layout > .cell{padding:0 12px;}
.rl-main-col{width:100%;}
.rl-side-col{width:100%;margin-top:28px;}

.rl-article-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-card);padding:28px;
}
.rl-article-body{font-size:17px;line-height:1.9;color:var(--text);max-width:none;}
.rl-article-body > *:first-child{margin-top:0;}
.rl-article-body p{margin:0 0 1.15em;}
.rl-article-body h2{
  position:relative;font-size:clamp(21px,2.3vw,27px);line-height:1.35;font-weight:700;
  margin:38px 0 14px;padding-left:14px;
}
.rl-article-body h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:3px;border-radius:2px;background:var(--brand);
}
.rl-article-body h3{font-size:20px;line-height:1.4;font-weight:600;margin:26px 0 10px;}
.rl-article-body h4{font-size:17px;margin:20px 0 8px;color:var(--text);}
.rl-article-body ul,.rl-article-body ol{margin:0 0 1.15em;padding-left:1.4em;}
.rl-article-body ul{list-style:disc;}
.rl-article-body ol{list-style:decimal;}
.rl-article-body li{margin:6px 0;line-height:1.85;}
.rl-article-body li::marker{color:var(--brand);}
.rl-article-body strong{color:#fff;}
.rl-article-body a{color:var(--brand);border-bottom:1px solid rgba(18,224,176,.35);}
.rl-article-body a:hover{color:var(--brand-hover);border-bottom-color:var(--brand-hover);}
.rl-article-body blockquote{
  margin:0 0 1.15em;padding:16px 20px;border-left:3px solid var(--brand);
  background:rgba(18,224,176,.08);border-radius:0 var(--r-img) var(--r-img) 0;color:var(--muted);
}
.rl-article-body blockquote p:last-child{margin-bottom:0;}
.rl-article-body img{
  width:100%;border-radius:var(--r-img);margin:18px 0;
  box-shadow:0 0 0 1px var(--border), 0 14px 32px rgba(0,0,0,.4);
}
.rl-article-body figure{margin:18px 0;}
.rl-article-body figcaption{font-size:13px;color:var(--weak);text-align:center;margin-top:8px;}
.rl-article-body table{
  width:100%;border-collapse:collapse;font-size:15px;margin:0 0 1.15em;border-radius:var(--r-img);overflow:hidden;
}
.rl-article-body th,.rl-article-body td{padding:11px 14px;border-bottom:1px solid var(--line);text-align:left;}
.rl-article-body th{background:rgba(255,255,255,.05);color:#fff;font-weight:600;}
.rl-article-body tbody tr:nth-child(odd){background:rgba(255,255,255,.03);}
.rl-article-body hr{border:0;height:1px;background:linear-gradient(90deg,transparent,var(--border),transparent);margin:28px 0;}

.rl-article-foot{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  margin-top:24px;padding:20px 24px;background:var(--panel);
  border:1px solid var(--line);border-radius:var(--r-card);
}
.rl-article-foot p{font-size:13px;color:var(--weak);max-width:560px;}

/* empty state */
.rl-empty{text-align:center;padding:56px 20px;}
.rl-empty-icon{
  width:74px;height:74px;margin:0 auto 18px;border-radius:18px;display:grid;place-items:center;
  border:1px dashed rgba(255,255,255,.22);color:var(--weak);
}
.rl-empty-icon svg{width:34px;height:34px;stroke:currentColor;fill:none;stroke-width:1.4;}
.rl-empty p{font-size:17px;color:var(--muted);margin-bottom:18px;}

/* ---------- sidebar ---------- */
.rl-side-card{
  background:rgba(14,23,32,.72);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--border);border-radius:var(--r-card);
  box-shadow:var(--sh-card);padding:22px;margin-bottom:20px;
}
.rl-side-title{
  display:flex;align-items:center;gap:9px;font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;
}
.rl-side-title::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--brand);}
.rl-toc ol{counter-reset:toc;}
.rl-toc li a{
  position:relative;display:block;padding:9px 10px 9px 14px;border-radius:8px;
  font-size:14px;color:var(--muted);line-height:1.5;
  transition:all 240ms var(--ease);border-left:3px solid transparent;
}
.rl-toc li a:hover{color:#fff;background:rgba(255,255,255,.04);}
.rl-toc li a.is-current{color:var(--brand);border-left-color:var(--brand);background:rgba(18,224,176,.08);}
.rl-side-list li + li{border-top:1px solid var(--line);}
.rl-side-list a{display:block;padding:13px 0;}
.rl-side-list .t{display:block;font-size:15px;font-weight:600;color:var(--text);line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rl-side-list a:hover .t{color:var(--brand);}
.rl-side-list .d{display:block;margin-top:6px;font-size:12px;color:var(--weak);font-variant-numeric:tabular-nums;font-family:Inter,system-ui,sans-serif;}
.rl-side-cta{text-align:left;}
.rl-side-cta p{font-size:13px;color:var(--muted);margin-bottom:14px;}

/* ---------- related cards ---------- */
.rl-sub-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin:44px 0 22px;}
.rl-sub-head h2{font-size:clamp(20px,2.2vw,26px);}
.rl-link-more{font-size:14px;color:var(--brand);display:inline-flex;align-items:center;gap:6px;}
.rl-link-more i{transition:transform 240ms var(--ease);}
.rl-link-more:hover i{transform:translateX(4px);}
.rl-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.rl-card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-card);overflow:hidden;
  transition:transform 240ms var(--ease),box-shadow 240ms var(--ease),border-color 240ms var(--ease);
}
.rl-card:hover{transform:translateY(-4px);box-shadow:var(--sh-card-hover);border-color:rgba(18,224,176,.32);}
.rl-card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0A1016;}
.rl-card-media img{width:100%;height:100%;object-fit:cover;transition:transform 420ms var(--ease);}
.rl-card:hover .rl-card-media img{transform:scale(1.03);}
.rl-card-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(18,224,176,.12),rgba(7,12,17,.35));}
.rl-card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rl-card-body h3{font-size:17px;font-weight:600;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rl-card-body p{font-size:14px;color:var(--muted);line-height:1.65;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rl-card-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:6px;}
.rl-card-date{font-size:12px;color:var(--weak);font-variant-numeric:tabular-nums;font-family:Inter,system-ui,sans-serif;}
.rl-card-go{font-size:13px;color:var(--brand);display:inline-flex;align-items:center;gap:6px;}
.rl-card-go i{transition:transform 240ms var(--ease);}
.rl-card:hover .rl-card-go i{transform:translateX(4px);}

/* ---------- FAQ ---------- */
.rl-faq-wrap{max-width:760px;margin:0 auto;}
.rl-faq-item{border-bottom:1px solid var(--line);}
.rl-faq-btn{
  width:100%;min-height:64px;display:flex;align-items:center;gap:16px;padding:14px 0;text-align:left;
  font-size:16px;font-weight:600;color:var(--text);transition:color 240ms var(--ease);
}
.rl-faq-btn:hover{color:var(--brand);}
.rl-faq-idx{font-size:13px;color:var(--accent);font-variant-numeric:tabular-nums;font-family:Inter,system-ui,sans-serif;flex:0 0 auto;}
.rl-faq-icon{margin-left:auto;color:var(--brand);font-size:15px;transition:transform 240ms var(--ease);flex:0 0 auto;}
.rl-faq-item.is-open .rl-faq-icon{transform:rotate(45deg);}
.rl-faq-panel{max-height:0;overflow:hidden;transition:max-height 320ms var(--ease);}
.rl-faq-panel p{padding:0 0 20px 33px;font-size:15px;color:var(--muted);line-height:1.85;}

/* ---------- CTA ---------- */
.rl-cta{
  position:relative;overflow:hidden;border-radius:20px;border:1px solid var(--border);
  background-image:linear-gradient(120deg,rgba(7,12,17,.92),rgba(7,12,17,.72)),url(/assets/images/backpic/back-3.png);
  background-size:cover;background-position:center;
  box-shadow:var(--sh-float);padding:44px;
  display:flex;flex-wrap:wrap;align-items:center;gap:28px;justify-content:space-between;
}
.rl-cta h2{font-size:clamp(22px,2.6vw,32px);margin-bottom:12px;}
.rl-cta p{font-size:15px;color:var(--muted);max-width:560px;}
.rl-cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- footer ---------- */
.rl-footer{margin-top:64px;padding:60px 0 26px;background:#05090D;border-top:1px solid var(--line);}
.rl-footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;}
.rl-footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.rl-footer-brand strong{font-size:16px;color:#fff;letter-spacing:.01em;}
.rl-footer h4{font-size:14px;color:#fff;margin-bottom:16px;letter-spacing:.03em;}
.rl-footer p{font-size:13px;color:var(--weak);line-height:1.8;max-width:340px;}
.rl-footer ul li{margin-bottom:10px;}
.rl-footer ul a{font-size:14px;color:var(--muted);}
.rl-footer ul a:hover{color:var(--brand);}
.rl-footer-contact li{display:flex;gap:9px;font-size:13px;color:var(--muted);align-items:flex-start;}
.rl-footer-contact i{color:var(--brand);margin-top:4px;font-size:12px;}
.rl-footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
  font-size:12px;color:var(--weak);line-height:1.7;
}
.rl-footer-bottom span:last-child{max-width:620px;}

/* ---------- mobile tabbar ---------- */
.rl-tabbar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;
  height:calc(60px + env(safe-area-inset-bottom));
  padding-bottom:env(safe-area-inset-bottom);
  background:rgba(9,15,21,.82);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-top:1px solid var(--border);
}
.rl-tabbar ul{display:flex;height:60px;}
.rl-tabbar li{flex:1;}
.rl-tabbar a,.rl-tabbar button{
  position:relative;width:100%;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  font-size:10px;color:var(--weak);
}
.rl-tabbar i{font-size:19px;}
.rl-tabbar .is-active{color:var(--brand);}
.rl-tabbar .is-active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:26px;height:3px;border-radius:0 0 3px 3px;background:var(--brand);
}

/* ---------- misc ---------- */
.rl-progress{position:fixed;top:0;left:0;right:0;height:2px;z-index:90;background:transparent;}
.rl-progress span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--brand),var(--brand-hover));transition:width 120ms linear;}
.rl-top{
  position:fixed;right:20px;bottom:24px;z-index:65;width:44px;height:44px;border-radius:50%;
  display:grid;place-items:center;color:var(--text);
  background:rgba(14,23,32,.72);backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--border);box-shadow:var(--sh-card);
  opacity:0;visibility:hidden;transition:all 240ms var(--ease);
}
.rl-top.is-show{opacity:1;visibility:visible;}
.rl-top:hover{color:var(--brand);transform:translateY(-3px);}
.rl-divider{height:1px;background:linear-gradient(90deg,transparent,var(--line),transparent);margin:0;}

@media (min-width:1025px){
  .rl-main-col{width:66.6667%;}
  .rl-side-col{width:33.3333%;margin-top:0;}
  .rl-side-sticky{position:sticky;top:calc(60px + 24px);}
}
@media (max-width:1024px){
  .rl-cards{grid-template-columns:repeat(2,1fr);}
  .rl-footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .rl-nav a{padding:22px 10px;font-size:14px;}
}
@media (max-width:900px){
  .rl-nav{display:none;}
  .rl-burger{display:grid;}
  .rl-header-actions .rl-btn-sm{display:none;}
}
@media (max-width:768px){
  :root{--nav-h:64px;}
  .rl-section{padding:56px 0;}
  .rl-article-card{padding:22px 18px;}
  .rl-article-body{font-size:16px;line-height:1.85;}
  .rl-cta{padding:28px 22px;}
  .rl-cta-actions{width:100%;}
  .rl-cta-actions .rl-btn{width:100%;}
  .rl-tabbar{display:block;}
  body{padding-bottom:76px;}
  .rl-top{bottom:80px;}
  .rl-footer{margin-top:48px;padding-top:48px;}
}
@media (max-width:520px){
  .rl-cards{grid-template-columns:1fr;}
  .rl-footer-grid{grid-template-columns:1fr;}
  .rl-layout{margin:0 -8px;}
  .rl-layout > .cell{padding:0 8px;}
  .rl-h1{font-size:clamp(24px,6.6vw,32px);}
  .rl-footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;scroll-behavior:auto !important;}
}

/* roulang page: category1 */
:root{
  --rl-brand:#12E0B0;
  --rl-brand-hover:#3BF0C6;
  --rl-brand-press:#0BB98F;
  --rl-accent:#FF8A3D;
  --rl-bg:#070C11;
  --rl-card:#0E1720;
  --rl-panel:#0B1219;
  --rl-text:#E8EEF3;
  --rl-muted:#A9B8C6;
  --rl-faint:#7B8C9B;
  --rl-line:rgba(255,255,255,.08);
  --rl-border:rgba(255,255,255,.10);
  --rl-r-card:16px;
  --rl-r-btn:12px;
  --rl-r-pill:999px;
  --rl-r-input:10px;
  --rl-r-badge:6px;
  --rl-r-img:12px;
  --rl-shadow-card:inset 0 1px 0 rgba(255,255,255,.04),0 12px 32px rgba(0,0,0,.45);
  --rl-shadow-hover:inset 0 1px 0 rgba(255,255,255,.05),0 18px 40px rgba(0,0,0,.55);
  --rl-shadow-float:0 24px 64px rgba(0,0,0,.6);
  --rl-ease:cubic-bezier(.2,.7,.3,1);
  --rl-dur:240ms;
  --rl-sect:88px;
  --rl-font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*{box-sizing:border-box;}
html{background:var(--rl-bg);scroll-behavior:smooth;}
body{
  margin:0;padding:0;
  background:var(--rl-bg);
  color:var(--rl-text);
  font-family:var(--rl-font);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5{margin:0;color:var(--rl-text);font-weight:700;line-height:1.3;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:var(--rl-brand);text-decoration:none;transition:color var(--rl-dur) var(--rl-ease);}
a:hover{color:var(--rl-brand-hover);}
img{max-width:100%;display:block;border:0;}
button{font-family:inherit;font-size:inherit;}
::selection{background:rgba(18,224,176,.28);color:#fff;}
:focus-visible{outline:2px solid var(--rl-brand);outline-offset:2px;border-radius:4px;}
.grid-container{max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}
.grid-margin-x{margin-left:-12px;margin-right:-12px;}
.grid-margin-x>.cell{padding-left:12px;padding-right:12px;}
.rl-num{font-family:"Inter",-apple-system,"Segoe UI",Roboto,sans-serif;font-variant-numeric:tabular-nums;letter-spacing:.01em;}

/* ---------- 顶部导航 ---------- */
.rl-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  height:72px;
  background:rgba(7,12,17,.66);
  backdrop-filter:blur(10px) saturate(140%);
  -webkit-backdrop-filter:blur(10px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:height var(--rl-dur) var(--rl-ease),background var(--rl-dur) var(--rl-ease),border-color var(--rl-dur) var(--rl-ease);
}
.rl-header.is-scrolled{height:60px;background:rgba(7,12,17,.9);border-bottom-color:var(--rl-border);}
.rl-header-inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;}
.rl-logo{display:inline-flex;align-items:center;gap:10px;color:var(--rl-text);}
.rl-logo:hover{color:var(--rl-text);}
.rl-logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:11px;flex:0 0 36px;
  background:rgba(18,224,176,.12);
  border:1px solid rgba(18,224,176,.35);
}
.rl-logo-mark svg{width:20px;height:20px;fill:var(--rl-brand);}
.rl-logo-text{font-size:17px;font-weight:700;letter-spacing:.01em;white-space:nowrap;}
.rl-nav ul{display:flex;align-items:center;gap:4px;}
.rl-nav a{
  position:relative;display:block;padding:9px 14px;border-radius:10px;
  font-size:15px;color:var(--rl-muted);
  transition:color var(--rl-dur) var(--rl-ease),background var(--rl-dur) var(--rl-ease),transform var(--rl-dur) var(--rl-ease);
}
.rl-nav a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:var(--rl-brand);transform:scaleX(0);transform-origin:left;
  transition:transform var(--rl-dur) var(--rl-ease);
}
.rl-nav a:hover{color:var(--rl-text);background:rgba(255,255,255,.05);transform:translateY(-1px);}
.rl-nav a:hover::after{transform:scaleX(1);}
.rl-nav a.is-active{color:var(--rl-brand);}
.rl-nav a.is-active::after{transform:scaleX(1);}
.rl-header-actions{display:flex;align-items:center;gap:12px;}
.rl-burger{
  display:none;width:42px;height:42px;border-radius:12px;
  background:rgba(255,255,255,.04);border:1px solid var(--rl-border);
  cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.rl-burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--rl-text);transition:transform var(--rl-dur) var(--rl-ease),opacity var(--rl-dur) var(--rl-ease);}
.rl-burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.rl-burger.is-open span:nth-child(2){opacity:0;}
.rl-burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- 按钮 ---------- */
.rl-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--rl-r-btn);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;cursor:pointer;
  transition:background var(--rl-dur) var(--rl-ease),color var(--rl-dur) var(--rl-ease),
             border-color var(--rl-dur) var(--rl-ease),transform var(--rl-dur) var(--rl-ease),
             box-shadow var(--rl-dur) var(--rl-ease);
}
.rl-btn-primary{
  background:var(--rl-brand);color:#04140F;border-radius:var(--rl-r-pill);
  box-shadow:0 8px 24px rgba(18,224,176,.28);
}
.rl-btn-primary:hover{
  background:var(--rl-brand-hover);color:#04140F;transform:translateY(-2px);
  box-shadow:0 12px 32px rgba(18,224,176,.42);
}
.rl-btn-primary:active{background:var(--rl-brand-press);transform:translateY(0);}
.rl-btn-ghost{background:rgba(18,224,176,.08);border-color:rgba(18,224,176,.45);color:var(--rl-brand);}
.rl-btn-ghost:hover{background:rgba(18,224,176,.16);border-color:rgba(18,224,176,.7);color:var(--rl-brand-hover);}
.rl-btn-line{background:transparent;border-color:var(--rl-border);color:var(--rl-text);}
.rl-btn-line:hover{border-color:rgba(18,224,176,.42);color:var(--rl-brand);}
.rl-btn-sm{height:40px;padding:0 18px;font-size:14px;}
.rl-btn:disabled,.rl-btn.is-disabled{filter:saturate(.4);opacity:.7;cursor:not-allowed;transform:none;}
.rl-textlink{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--rl-brand);}
.rl-textlink i{transition:transform var(--rl-dur) var(--rl-ease);}
.rl-textlink:hover i{transform:translateX(4px);}

/* ---------- 移动抽屉 ---------- */
.rl-drawer{
  position:fixed;inset:0;z-index:90;
  background:rgba(4,8,12,.94);
  backdrop-filter:blur(16px);
  transform:translateY(-100%);
  transition:transform var(--rl-dur) var(--rl-ease);
  display:none;
}
.rl-drawer.is-open{transform:translateY(0);}
.rl-drawer-inner{max-width:520px;margin:0 auto;padding:20px 24px 40px;}
.rl-drawer-head{display:flex;align-items:center;justify-content:space-between;height:56px;margin-bottom:16px;}
.rl-drawer-head strong{font-size:16px;}
.rl-drawer-close{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--rl-border);
  background:rgba(255,255,255,.04);color:var(--rl-text);cursor:pointer;
}
.rl-drawer-close:hover{color:var(--rl-brand);border-color:rgba(18,224,176,.4);}
.rl-drawer-nav li+li{border-top:1px solid var(--rl-line);}
.rl-drawer-nav a{display:flex;align-items:center;height:48px;font-size:16px;color:var(--rl-muted);}
.rl-drawer-nav a.is-active{color:var(--rl-brand);}
.rl-drawer-cta{margin-top:24px;width:100%;}

/* ---------- 页头 ---------- */
.rl-pagehead{position:relative;overflow:hidden;padding:150px 0 72px;background:var(--rl-bg);}
.rl-pagehead-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  filter:brightness(.28) blur(2px);
  transform:scale(1.05);
}
.rl-pagehead::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(58% 70% at 12% 18%,rgba(18,224,176,.20),transparent 62%),
    radial-gradient(48% 60% at 88% 84%,rgba(255,138,61,.14),transparent 66%),
    linear-gradient(180deg,rgba(7,12,17,.55) 0%,rgba(7,12,17,.96) 100%);
}
.rl-pagehead .grid-container{position:relative;z-index:2;}
.rl-crumb{margin-bottom:22px;}
.rl-crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--rl-faint);}
.rl-crumb li+li::before{content:"/";margin-right:8px;color:rgba(255,255,255,.24);}
.rl-crumb a{color:var(--rl-muted);}
.rl-crumb a:hover{color:var(--rl-brand);}
.rl-crumb [aria-current="page"]{color:var(--rl-faint);}
.rl-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:28px;padding:0 12px;margin-bottom:18px;
  border-radius:var(--rl-r-badge);
  background:rgba(18,224,176,.10);
  border:1px solid rgba(18,224,176,.32);
  color:var(--rl-brand);font-size:13px;font-weight:600;
}
.rl-pagehead h1{
  font-size:clamp(30px,4.4vw,50px);line-height:1.15;font-weight:800;letter-spacing:-.01em;
  margin-bottom:18px;
}
.rl-pagehead-lead{font-size:17px;color:var(--rl-muted);max-width:640px;}
.rl-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.rl-badge{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 10px;border-radius:var(--rl-r-badge);
  font-size:13px;font-weight:600;
  background:rgba(255,255,255,.05);border:1px solid var(--rl-border);color:var(--rl-muted);
}
.rl-badge--brand{background:rgba(18,224,176,.12);border-color:rgba(18,224,176,.34);color:var(--rl-brand);}
.rl-badge--accent{background:rgba(255,138,61,.12);border-color:rgba(255,138,61,.34);color:var(--rl-accent);}
.rl-cover{
  margin:0;position:relative;border-radius:var(--rl-r-img);overflow:hidden;
  border:1px solid var(--rl-border);box-shadow:var(--rl-shadow-card);
}
.rl-cover img{width:100%;height:260px;object-fit:cover;}
.rl-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(18,224,176,.10),rgba(7,12,17,.42));}
.rl-cover figcaption{
  position:absolute;left:16px;bottom:14px;z-index:2;
  font-size:13px;color:rgba(232,238,243,.82);
}
.rl-pagehead-side{margin-top:32px;}

/* ---------- 板块 ---------- */
.rl-section{padding:var(--rl-sect) 0;}
.rl-section--tight{padding-top:0;}
.rl-section-head{max-width:760px;margin-bottom:40px;}
.rl-section-head h2{
  position:relative;padding-left:18px;
  font-size:clamp(24px,3vw,34px);line-height:1.25;margin-bottom:14px;
}
.rl-section-head h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:2px;
  background:var(--rl-brand);
}
.rl-section-head p{color:var(--rl-muted);font-size:16px;}
.rl-section-head--split{max-width:none;display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.rl-section-head--split .rl-section-head-text{max-width:640px;}

/* ---------- 图文交错 ---------- */
.rl-feature+.rl-feature{margin-top:56px;}
.rl-feature .grid-x{align-items:center;}
.rl-feature-media{margin-bottom:24px;}
.rl-feature-media img{
  width:100%;height:320px;object-fit:cover;
  border-radius:var(--rl-r-img);border:1px solid var(--rl-border);
}
.rl-feature-body{padding:0 4px;}
.rl-feature-index{
  font-family:"Inter",sans-serif;font-variant-numeric:tabular-nums;
  font-size:44px;font-weight:800;line-height:1;
  color:transparent;-webkit-text-stroke:1px rgba(18,224,176,.5);
  display:block;margin-bottom:14px;
}
.rl-feature-body h3{font-size:clamp(20px,2.2vw,24px);margin-bottom:14px;}
.rl-feature-body p{color:var(--rl-muted);font-size:16px;line-height:1.9;}
.rl-points{margin-top:20px;display:grid;gap:10px;}
.rl-points li{display:flex;gap:10px;font-size:15px;color:var(--rl-muted);}
.rl-points li i{color:var(--rl-brand);font-size:13px;margin-top:8px;}
@media (min-width:1025px){
  .rl-feature--reverse .grid-x{flex-direction:row-reverse;}
}

/* ---------- 项目标签 ---------- */
.rl-topics{
  margin-top:56px;padding:28px;border-radius:var(--rl-r-card);
  background:var(--rl-panel);border:1px solid var(--rl-line);
}
.rl-topics h3{font-size:18px;margin-bottom:18px;}
.rl-topic-list{display:flex;flex-wrap:wrap;gap:10px;}
.rl-topic{
  display:inline-flex;align-items:center;gap:8px;
  height:38px;padding:0 16px;border-radius:var(--rl-r-pill);
  background:rgba(255,255,255,.04);border:1px solid var(--rl-border);
  color:var(--rl-muted);font-size:14px;
  transition:all var(--rl-dur) var(--rl-ease);
}
.rl-topic:hover{color:var(--rl-brand);border-color:rgba(18,224,176,.42);background:rgba(18,224,176,.08);transform:translateY(-2px);}
.rl-topic i{font-size:13px;color:var(--rl-accent);}

/* ---------- 条目卡 ---------- */
.rl-list-grid>.cell{margin-bottom:28px;}
.rl-entry{
  height:100%;display:flex;flex-direction:column;
  background:var(--rl-card);border:1px solid var(--rl-line);
  border-radius:var(--rl-r-card);padding:16px;
  box-shadow:var(--rl-shadow-card);
  transition:transform var(--rl-dur) var(--rl-ease),border-color var(--rl-dur) var(--rl-ease),box-shadow var(--rl-dur) var(--rl-ease);
}
.rl-entry:hover{transform:translateY(-4px);border-color:rgba(18,224,176,.32);box-shadow:var(--rl-shadow-hover);}
.rl-entry-cover{position:relative;height:170px;border-radius:var(--rl-r-img);overflow:hidden;border:1px solid var(--rl-border);}
.rl-entry-cover img{width:100%;height:100%;object-fit:cover;transition:transform 400ms var(--rl-ease);}
.rl-entry:hover .rl-entry-cover img{transform:scale(1.04);}
.rl-entry-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(18,224,176,.10),rgba(7,12,17,.38));}
.rl-entry-body{display:flex;flex-direction:column;flex:1;padding:18px 6px 6px;}
.rl-entry-body h3{font-size:18px;line-height:1.45;margin:10px 0 10px;}
.rl-entry-body h3 a{color:var(--rl-text);}
.rl-entry-body h3 a:hover{color:var(--rl-brand);}
.rl-entry-body p{font-size:14px;color:var(--rl-muted);line-height:1.75;flex:1;}
.rl-entry-meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:16px;padding-top:14px;border-top:1px solid var(--rl-line);
  font-size:13px;color:var(--rl-faint);
}

/* ---------- FAQ ---------- */
.rl-faq{max-width:760px;margin:0 auto;}
.rl-faq details{border-bottom:1px solid var(--rl-line);}
.rl-faq details:first-child{border-top:1px solid var(--rl-line);}
.rl-faq summary{
  position:relative;display:flex;align-items:center;gap:14px;
  min-height:64px;padding:12px 44px 12px 0;
  cursor:pointer;list-style:none;font-size:17px;font-weight:600;color:var(--rl-text);
  transition:color var(--rl-dur) var(--rl-ease);
}
.rl-faq summary::-webkit-details-marker{display:none;}
.rl-faq summary:hover{color:var(--rl-brand);}
.rl-faq .rl-faq-num{
  font-family:"Inter",sans-serif;font-variant-numeric:tabular-nums;
  font-size:13px;font-weight:700;color:var(--rl-brand);flex:0 0 26px;
}
.rl-faq summary::after{
  content:"+";position:absolute;right:6px;top:50%;
  transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--rl-brand);line-height:1;
  transition:transform var(--rl-dur) var(--rl-ease);
}
.rl-faq details[open] summary::after{transform:translateY(-50%) rotate(45deg);}
.rl-faq-body{padding:0 44px 22px 40px;color:var(--rl-muted);font-size:15px;line-height:1.85;}

/* ---------- CTA ---------- */
.rl-cta-box{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  padding:48px;border-radius:20px;
  background:var(--rl-card);border:1px solid var(--rl-border);
  box-shadow:var(--rl-shadow-card);
}
.rl-cta-box::before{
  content:"";position:absolute;inset:0;opacity:.06;
  background-image:radial-gradient(rgba(255,255,255,.6) 1px,transparent 1px);
  background-size:18px 18px;
}
.rl-cta-text{position:relative;z-index:2;max-width:560px;}
.rl-cta-text h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:12px;}
.rl-cta-text p{color:var(--rl-muted);font-size:16px;}
.rl-cta-actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.rl-footer{background:#05090D;border-top:1px solid var(--rl-line);padding:64px 0 0;margin-top:0;}
.rl-footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.rl-footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.rl-footer-brand strong{font-size:16px;}
.rl-footer p{font-size:14px;color:var(--rl-faint);line-height:1.85;max-width:340px;}
.rl-footer h4{font-size:15px;margin-bottom:16px;color:var(--rl-text);}
.rl-footer ul li{margin-bottom:10px;font-size:14px;}
.rl-footer ul a{color:var(--rl-muted);}
.rl-footer ul a:hover{color:var(--rl-brand);}
.rl-footer-contact li{display:flex;gap:10px;align-items:flex-start;color:var(--rl-faint);font-size:14px;}
.rl-footer-contact i{color:var(--rl-brand);font-size:13px;margin-top:7px;}
.rl-footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:48px;padding:20px 0 28px;border-top:1px solid var(--rl-line);
  font-size:13px;color:var(--rl-faint);
}

/* ---------- 移动底部 Tab ---------- */
.rl-tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:85;display:none;
  background:rgba(11,18,25,.94);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-top:1px solid var(--rl-line);
  padding-bottom:env(safe-area-inset-bottom);
}
.rl-tabbar ul{display:flex;}
.rl-tabbar li{flex:1;}
.rl-tabbar a{
  position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  height:60px;font-size:10px;color:var(--rl-faint);
}
.rl-tabbar a::before{
  content:"";position:absolute;top:0;left:50%;width:36px;height:3px;border-radius:0 0 3px 3px;
  background:var(--rl-brand);transform:translateX(-50%) scaleX(0);
  transition:transform var(--rl-dur) var(--rl-ease);
}
.rl-tabbar a.is-active{color:var(--rl-brand);}
.rl-tabbar a.is-active::before{transform:translateX(-50%) scaleX(1);}
.rl-tabbar i{font-size:18px;}

/* ---------- 回到顶部 ---------- */
.rl-totop{
  position:fixed;right:24px;bottom:32px;z-index:70;
  width:44px;height:44px;border-radius:50%;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  background:rgba(11,18,25,.86);border:1px solid var(--rl-border);color:var(--rl-text);
  backdrop-filter:blur(14px);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:all var(--rl-dur) var(--rl-ease);
}
.rl-totop.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.rl-totop:hover{color:var(--rl-brand);border-color:rgba(18,224,176,.42);}

/* ---------- 出现动画 ---------- */
.rl-reveal{opacity:0;transform:translateY(18px);transition:opacity 600ms var(--rl-ease),transform 600ms var(--rl-ease);}
.rl-reveal.is-in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .rl-footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
  .rl-footer-brand-col{grid-column:1 / -1;}
}
@media (max-width:1024px){
  :root{--rl-sect:72px;}
  .rl-nav a{padding:9px 11px;font-size:14px;}
  .rl-feature-media img{height:280px;}
  .rl-cover img{height:230px;}
  .rl-cta-box{padding:36px;}
}
@media (max-width:768px){
  :root{--rl-sect:56px;}
  body{padding-bottom:calc(60px + env(safe-area-inset-bottom));}
  .grid-container{padding-left:16px;padding-right:16px;}
  .grid-margin-x{margin-left:-8px;margin-right:-8px;}
  .grid-margin-x>.cell{padding-left:8px;padding-right:8px;}
  .rl-nav{display:none;}
  .rl-burger{display:flex;}
  .rl-drawer{display:block;}
  .rl-header{height:60px;}
  .rl-header.is-scrolled{height:56px;}
  .rl-logo-text{font-size:15px;}
  .rl-header-actions .rl-btn{display:none;}
  .rl-pagehead{padding:108px 0 56px;}
  .rl-pagehead-lead{font-size:16px;}
  .rl-cover img{height:210px;}
  .rl-feature-media img{height:220px;}
  .rl-feature+.rl-feature{margin-top:44px;}
  .rl-feature-index{font-size:34px;}
  .rl-feature--reverse .rl-feature-media{order:-1;}
  .rl-topics{padding:20px;margin-top:44px;}
  .rl-faq summary{font-size:16px;padding-right:38px;}
  .rl-faq-body{padding:0 0 20px 40px;}
  .rl-cta-box{padding:28px 22px;flex-direction:column;align-items:flex-start;}
  .rl-cta-actions{width:100%;}
  .rl-cta-actions .rl-btn{flex:1 1 100%;}
  .rl-footer{padding-top:48px;}
  .rl-footer-grid{grid-template-columns:1fr;gap:28px;}
  .rl-footer p{max-width:none;}
  .rl-footer-bottom{flex-direction:column;align-items:flex-start;margin-top:32px;}
  .rl-tabbar{display:block;}
  .rl-totop{right:16px;bottom:calc(76px + env(safe-area-inset-bottom));}
}
@media (max-width:480px){
  .rl-pagehead h1{font-size:28px;}
  .rl-section-head h2{font-size:22px;}
  .rl-badges{gap:8px;}
  .rl-badge{font-size:12px;}
  .rl-entry-body h3{font-size:17px;}
  .rl-cta-box{padding:24px 18px;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;}
  .rl-reveal{opacity:1;transform:none;}
}

/* roulang page: category2 */
:root{
  --brand:#12E0B0;
  --brand-hover:#3BF0C6;
  --brand-down:#0BB98F;
  --warm:#FF8A3D;
  --bg:#070C11;
  --card:#0E1720;
  --panel:#0B1219;
  --text:#E8EEF3;
  --muted:#A9B8C6;
  --dim:#7B8C9B;
  --line:rgba(255,255,255,.08);
  --bd:rgba(255,255,255,.10);
  --r-card:16px;
  --r-btn:12px;
  --r-input:10px;
  --r-badge:6px;
  --shadow-card:0 1px 0 rgba(255,255,255,.04) inset, 0 12px 32px rgba(0,0,0,.45);
  --shadow-card-hover:0 1px 0 rgba(255,255,255,.05) inset, 0 18px 40px rgba(0,0,0,.55);
  --shadow-float:0 24px 64px rgba(0,0,0,.6);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t:240ms;
  --maxw:1200px;
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,Segoe UI,sans-serif;
  --num-font:"Inter","PingFang SC","HarmonyOS Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--brand);text-decoration:none;transition:color var(--t) var(--ease),background-color var(--t) var(--ease),border-color var(--t) var(--ease),transform var(--t) var(--ease)}
a:hover{color:var(--brand-hover)}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0;padding:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3,h4{line-height:1.25;font-weight:700;color:var(--text)}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.grid-container{max-width:var(--maxw);padding-left:24px;padding-right:24px;margin-left:auto;margin-right:auto;width:100%}
.grid-x>.cell{padding-left:12px;padding-right:12px}
.grid-margin-x{margin-left:-12px;margin-right:-12px}
::selection{background:rgba(18,224,176,.28);color:#fff}

/* ---------- 顶部导航 ---------- */
.rl-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:rgba(7,12,17,.86);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
  transition:height var(--t) var(--ease),background-color var(--t) var(--ease);
}
.rl-header-inner{
  display:flex;align-items:center;gap:28px;
  height:72px;transition:height var(--t) var(--ease);
}
.rl-header.is-scrolled .rl-header-inner{height:60px}
.rl-header.is-scrolled{background:rgba(7,12,17,.94);box-shadow:0 10px 30px rgba(0,0,0,.4)}
.rl-logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text)}
.rl-logo-mark{
  width:36px;height:36px;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,rgba(18,224,176,.22),rgba(255,138,61,.16));
  border:1px solid rgba(18,224,176,.36);
}
.rl-logo-mark svg{width:22px;height:22px;fill:var(--brand)}
.rl-logo-text{font-size:17px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.rl-nav{flex:1 1 auto}
.rl-nav ul{display:flex;align-items:center;gap:6px}
.rl-nav a{
  display:inline-block;position:relative;padding:10px 14px;border-radius:var(--r-btn);
  color:var(--muted);font-size:15px;font-weight:500;
}
.rl-nav a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform var(--t) var(--ease);
}
.rl-nav a:hover{color:var(--text);transform:translateY(-1px)}
.rl-nav a:hover::after{transform:scaleX(1)}
.rl-nav a.is-active{color:var(--brand)}
.rl-nav a.is-active::after{transform:scaleX(1)}
.rl-header-cta{flex:0 0 auto}
.rl-burger{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--bd);
  align-items:center;justify-content:center;color:var(--text);margin-left:auto;
}
.rl-burger i{font-size:18px}
.rl-drawer{
  position:fixed;inset:0;z-index:90;background:rgba(7,12,17,.98);
  padding:88px 24px 40px;transform:translateY(-8px);opacity:0;pointer-events:none;
  transition:opacity var(--t) var(--ease),transform var(--t) var(--ease);
  display:flex;flex-direction:column;
}
.rl-drawer.is-open{opacity:1;transform:translateY(0);pointer-events:auto}
.rl-drawer ul{display:flex;flex-direction:column;gap:4px}
.rl-drawer a{
  display:flex;align-items:center;justify-content:space-between;
  height:48px;padding:0 16px;border-radius:12px;color:var(--muted);font-size:16px;
  border:1px solid transparent;
}
.rl-drawer a:hover,.rl-drawer a.is-active{background:rgba(18,224,176,.10);border-color:rgba(18,224,176,.32);color:var(--brand)}
.rl-drawer .rl-drawer-cta{margin-top:auto}
.rl-drawer-close{position:absolute;top:20px;right:20px;width:44px;height:44px;border-radius:12px;border:1px solid var(--bd);display:flex;align-items:center;justify-content:center;color:var(--text)}

/* ---------- 按钮 ---------- */
.rl-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;white-space:nowrap;
  transition:all var(--t) var(--ease);
}
.rl-btn i{font-size:14px}
.rl-btn-primary{
  background:var(--brand);color:#04140F;border-radius:999px;
  box-shadow:0 8px 24px rgba(18,224,176,.28);
}
.rl-btn-primary:hover{background:var(--brand-hover);color:#04140F;transform:translateY(-2px);box-shadow:0 12px 30px rgba(18,224,176,.42)}
.rl-btn-primary:active{background:var(--brand-down);transform:translateY(0)}
.rl-btn-ghost{background:rgba(18,224,176,.08);border-color:rgba(18,224,176,.45);color:var(--brand)}
.rl-btn-ghost:hover{background:rgba(18,224,176,.16);color:var(--brand-hover);transform:translateY(-2px)}
.rl-btn-line{background:transparent;border-color:var(--bd);color:var(--text)}
.rl-btn-line:hover{border-color:rgba(18,224,176,.4);color:var(--brand);transform:translateY(-2px)}
.rl-btn-sm{height:40px;padding:0 18px;font-size:14px}
.rl-btn-block{width:100%}
.rl-btn:disabled,.rl-btn.is-disabled{filter:saturate(40%);opacity:.7;pointer-events:none}
.rl-link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand)}
.rl-link-arrow i{transition:transform var(--t) var(--ease)}
.rl-link-arrow:hover i{transform:translateX(4px)}

/* ---------- 页头 ---------- */
.rl-pagehead{position:relative;overflow:hidden;padding:140px 0 64px;border-bottom:1px solid var(--line)}
.rl-pagehead-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  filter:brightness(.28) blur(2px);transform:scale(1.04);
}
.rl-pagehead-overlay{
  position:absolute;inset:0;
  background:
    radial-gradient(110% 90% at 12% 0%, rgba(18,224,176,.22), transparent 58%),
    linear-gradient(180deg, rgba(7,12,17,.62) 0%, rgba(7,12,17,.94) 100%);
}
.rl-pagehead .grid-container{position:relative;z-index:2}
.rl-breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--dim);margin-bottom:20px}
.rl-breadcrumb a{color:var(--muted)}
.rl-breadcrumb a:hover{color:var(--brand)}
.rl-breadcrumb span.sep{color:rgba(255,255,255,.22)}
.rl-breadcrumb .current{color:var(--dim)}
.rl-pagehead h1{
  font-size:clamp(30px,4.4vw,54px);line-height:1.15;letter-spacing:-.01em;font-weight:800;
  max-width:18em;
}
.rl-pagehead h1 em{font-style:normal;color:var(--brand);display:block;font-size:.58em;font-weight:700;margin-bottom:10px;letter-spacing:.02em}
.rl-pagehead-sub{margin-top:18px;max-width:44em;color:var(--muted);font-size:16px;line-height:1.9}
.rl-pagehead-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.rl-badge{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 10px;border-radius:var(--r-badge);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.rl-badge.is-brand{background:rgba(18,224,176,.12);color:var(--brand);border:1px solid rgba(18,224,176,.3)}
.rl-badge.is-warm{background:rgba(255,138,61,.12);color:var(--warm);border:1px solid rgba(255,138,61,.3)}
.rl-badge.is-mute{background:rgba(255,255,255,.06);color:var(--muted);border:1px solid var(--bd)}

/* ---------- 数据条 ---------- */
.rl-statbar{
  position:relative;border-bottom:1px solid var(--line);
  background:var(--panel);
  background-image:radial-gradient(rgba(255,255,255,.06) 1px, transparent 1px);
  background-size:18px 18px;
}
.rl-statbar-inner{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;padding:34px 0}
.rl-stat{padding:0 20px;border-left:1px solid var(--line)}
.rl-stat:first-child{border-left:0;padding-left:0}
.rl-stat-num{
  font-family:var(--num-font);font-variant-numeric:tabular-nums;
  font-size:clamp(28px,3.2vw,40px);font-weight:700;line-height:1.1;
}
.rl-stat-num.is-brand{color:var(--brand)}
.rl-stat-num.is-warm{color:var(--warm)}
.rl-stat-num small{font-size:.44em;font-weight:600;color:var(--muted);margin-left:4px}
.rl-stat-desc{margin-top:8px;font-size:13px;color:var(--muted);line-height:1.6}

/* ---------- 主体两栏 ---------- */
.rl-main{padding:72px 0 88px}
.rl-index{position:relative}
.rl-index-card{
  position:sticky;top:96px;
  background:var(--card);border:1px solid var(--bd);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);padding:22px;
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
}
.rl-index-title{font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--dim);margin-bottom:16px}
.rl-index-list{display:flex;flex-direction:column;gap:2px}
.rl-index-list a{
  display:block;padding:10px 12px;border-radius:10px;
  color:var(--muted);font-size:14.5px;border-left:3px solid transparent;
}
.rl-index-list a:hover{background:rgba(255,255,255,.04);color:var(--text)}
.rl-index-list a.is-active{color:var(--brand);border-left-color:var(--brand);background:rgba(18,224,176,.08)}
.rl-index-foot{margin-top:20px;padding-top:18px;border-top:1px solid var(--line)}
.rl-index-note{margin-top:12px;font-size:12.5px;color:var(--dim);line-height:1.7}

.rl-content{font-size:16px}
.rl-block{margin-bottom:64px;scroll-margin-top:100px}
.rl-block:last-child{margin-bottom:0}
.rl-block-head{margin-bottom:28px}
.rl-h2{
  position:relative;padding-left:16px;
  font-size:clamp(24px,3vw,34px);line-height:1.25;font-weight:700;letter-spacing:-.005em;
}
.rl-h2::before{
  content:"";position:absolute;left:0;top:.14em;bottom:.14em;width:4px;border-radius:3px;
  background:linear-gradient(180deg,var(--brand),rgba(18,224,176,.25));
}
.rl-block-sub{margin-top:12px;color:var(--muted);font-size:15px;max-width:52em}

.rl-prose p{color:var(--muted);line-height:1.9;margin-bottom:16px;max-width:52em}
.rl-prose p:last-child{margin-bottom:0}
.rl-prose strong{color:var(--text);font-weight:600}
.rl-prose .rl-mini-title{display:block;color:var(--text);font-weight:600;font-size:15.5px;margin:26px 0 8px}
.rl-prose .rl-mini-title:first-child{margin-top:0}

/* ---------- 支持渠道卡 ---------- */
.rl-grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.rl-card{
  background:var(--card);border:1px solid var(--bd);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);padding:24px;
  transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease),border-color var(--t) var(--ease);
}
.rl-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);border-color:rgba(18,224,176,.32)}
.rl-card-icon{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(18,224,176,.34);background:rgba(18,224,176,.10);color:var(--brand);
  margin-bottom:16px;font-size:18px;
}
.rl-card h3{font-size:19px;font-weight:600;margin-bottom:10px}
.rl-card p{color:var(--muted);font-size:14.5px;line-height:1.8}
.rl-card .rl-card-meta{
  margin-top:16px;padding-top:14px;border-top:1px solid var(--line);
  font-family:var(--num-font);font-variant-numeric:tabular-nums;
  font-size:13px;color:var(--dim);
}

/* ---------- 条目列表 ---------- */
.rl-itemlist{
  border:1px solid var(--bd);border-radius:var(--r-card);overflow:hidden;background:var(--card);
  box-shadow:var(--shadow-card);
}
.rl-item{
  display:grid;grid-template-columns:112px 1fr auto;gap:20px;align-items:center;
  padding:20px 24px;border-bottom:1px solid var(--line);
  transition:background-color var(--t) var(--ease);
}
.rl-item:last-child{border-bottom:0}
.rl-item:hover{background:rgba(255,255,255,.03)}
.rl-item-thumb{
  width:112px;height:70px;border-radius:12px;overflow:hidden;
  border:1px solid var(--bd);background:var(--panel);
}
.rl-item-thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--t) var(--ease)}
.rl-item:hover .rl-item-thumb img{transform:scale(1.03)}
.rl-item-body h3{font-size:17px;font-weight:600;margin-bottom:6px;line-height:1.45}
.rl-item-body h3 a{color:var(--text)}
.rl-item-body h3 a:hover{color:var(--brand)}
.rl-item-body p{font-size:14px;color:var(--muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rl-item-tags{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap}
.rl-item-side{display:flex;flex-direction:column;align-items:flex-end;gap:10px;text-align:right}
.rl-item-time{
  font-family:var(--num-font);font-variant-numeric:tabular-nums;
  font-size:13px;color:var(--dim);white-space:nowrap;
}
.rl-item-side .rl-link-arrow{font-size:13px}

/* ---------- 步骤 ---------- */
.rl-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:step}
.rl-step{
  position:relative;padding:24px 20px 22px;border-radius:var(--r-card);
  background:var(--card);border:1px solid var(--bd);box-shadow:var(--shadow-card);
  transition:transform var(--t) var(--ease),border-color var(--t) var(--ease);
}
.rl-step:hover{transform:translateY(-4px);border-color:rgba(18,224,176,.32)}
.rl-step-num{
  font-family:var(--num-font);font-variant-numeric:tabular-nums;
  font-size:34px;font-weight:800;line-height:1;
  color:transparent;-webkit-text-stroke:1px rgba(18,224,176,.65);
  margin-bottom:14px;
}
.rl-step h3{font-size:17px;font-weight:600;margin-bottom:8px}
.rl-step p{font-size:14px;color:var(--muted);line-height:1.75}
.rl-step::after{
  content:"";position:absolute;top:38px;right:-18px;width:18px;height:1px;
  background:linear-gradient(90deg,rgba(18,224,176,.6),rgba(18,224,176,0));
}
.rl-step:last-child::after{display:none}

/* ---------- 安全提醒 ---------- */
.rl-note{
  background:var(--panel);border:1px solid var(--bd);border-radius:var(--r-card);
  padding:26px 28px;box-shadow:var(--shadow-card);
}
.rl-note ul{display:grid;grid-template-columns:1fr 1fr;gap:14px 28px}
.rl-note li{display:flex;gap:12px;font-size:14.5px;color:var(--muted);line-height:1.8}
.rl-note li i{color:var(--brand);margin-top:6px;font-size:13px}

/* ---------- FAQ ---------- */
.rl-faq{max-width:820px}
.rl-faq-item{border-bottom:1px solid var(--line)}
.rl-faq-item:first-child{border-top:1px solid var(--line)}
.rl-faq-q{
  width:100%;display:flex;align-items:center;gap:16px;text-align:left;
  min-height:64px;padding:16px 4px;color:var(--text);font-size:16.5px;font-weight:600;
  transition:color var(--t) var(--ease);
}
.rl-faq-q:hover{color:var(--brand)}
.rl-faq-q .rl-faq-no{
  font-family:var(--num-font);font-variant-numeric:tabular-nums;
  font-size:13px;color:var(--dim);flex:0 0 auto;width:26px;
}
.rl-faq-q .rl-faq-text{flex:1 1 auto}
.rl-faq-q .rl-faq-icon{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;
  border:1px solid var(--bd);display:flex;align-items:center;justify-content:center;
  color:var(--brand);font-size:12px;transition:transform var(--t) var(--ease),border-color var(--t) var(--ease);
}
.rl-faq-item.is-open .rl-faq-q{color:var(--brand)}
.rl-faq-item.is-open .rl-faq-icon{transform:rotate(135deg);border-color:rgba(18,224,176,.5)}
.rl-faq-a{max-height:0;overflow:hidden;transition:max-height var(--t) var(--ease)}
.rl-faq-a p{padding:0 4px 22px 42px;color:var(--muted);font-size:14.5px;line-height:1.9;max-width:46em}

/* ---------- CTA ---------- */
.rl-cta{
  position:relative;overflow:hidden;border-radius:var(--r-card);
  border:1px solid rgba(18,224,176,.26);
  background:linear-gradient(120deg,rgba(18,224,176,.14),rgba(255,138,61,.08) 70%,rgba(18,224,176,.05));
  padding:44px 40px;box-shadow:var(--shadow-card);
}
.rl-cta::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.06) 1px, transparent 1px);
  background-size:16px 16px;opacity:.7;
}
.rl-cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.rl-cta h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:10px}
.rl-cta p{color:var(--muted);font-size:15px;max-width:38em}
.rl-cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.rl-footer{border-top:1px solid var(--line);background:var(--panel);padding:64px 0 28px;margin-top:0}
.rl-footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:36px}
.rl-footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.rl-footer-brand strong{font-size:16.5px}
.rl-footer p{color:var(--dim);font-size:13.5px;line-height:1.85;max-width:30em}
.rl-footer h4{font-size:14px;font-weight:700;letter-spacing:.06em;color:var(--text);margin-bottom:18px}
.rl-footer ul{display:flex;flex-direction:column;gap:10px}
.rl-footer ul a{color:var(--muted);font-size:14px}
.rl-footer ul a:hover{color:var(--brand)}
.rl-footer-contact li{display:flex;gap:10px;color:var(--muted);font-size:14px;line-height:1.7}
.rl-footer-contact i{color:var(--brand);margin-top:6px;font-size:13px}
.rl-footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13px;color:var(--dim);line-height:1.8;
}

/* ---------- 移动底部 Tab ---------- */
.rl-tabbar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;
  height:calc(60px + env(safe-area-inset-bottom));
  padding-bottom:env(safe-area-inset-bottom);
  background:rgba(11,18,25,.92);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-top:1px solid var(--line);
}
.rl-tabbar ul{display:grid;grid-template-columns:repeat(5,1fr);height:60px}
.rl-tabbar a{
  position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  color:var(--dim);font-size:10px;letter-spacing:.02em;
}
.rl-tabbar a i{font-size:18px}
.rl-tabbar a.is-active{color:var(--brand)}
.rl-tabbar a.is-active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:26px;height:3px;border-radius:0 0 3px 3px;background:var(--brand);
}

/* ---------- 回到顶部 ---------- */
.rl-top{
  position:fixed;right:22px;bottom:26px;z-index:60;
  width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:rgba(14,23,32,.86);border:1px solid var(--bd);color:var(--brand);
  box-shadow:var(--shadow-float);
  opacity:0;pointer-events:none;transform:translateY(8px);
  transition:opacity var(--t) var(--ease),transform var(--t) var(--ease);
}
.rl-top.is-show{opacity:1;pointer-events:auto;transform:translateY(0)}
.rl-top:hover{background:rgba(18,224,176,.14);border-color:rgba(18,224,176,.4)}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .rl-header-inner{gap:20px}
  .rl-nav a{padding:10px 11px;font-size:14.5px}
}
@media (max-width:1024px){
  .rl-nav{display:none}
  .rl-header-cta{display:none}
  .rl-burger{display:flex}
  .rl-index-card{position:static}
  .rl-index-list{flex-direction:row;overflow-x:auto;gap:8px;padding-bottom:4px;scrollbar-width:none}
  .rl-index-list::-webkit-scrollbar{display:none}
  .rl-index-list li{flex:0 0 auto}
  .rl-index-list a{border-left:0;border:1px solid var(--bd);border-radius:999px;white-space:nowrap;padding:8px 14px;font-size:14px}
  .rl-index-list a.is-active{border-color:rgba(18,224,176,.45);background:rgba(18,224,176,.1)}
  .rl-grid-3{grid-template-columns:repeat(2,1fr)}
  .rl-steps{grid-template-columns:repeat(2,1fr)}
  .rl-step::after{display:none}
  .rl-main{padding:56px 0 72px}
  .rl-block{margin-bottom:48px}
}
@media (max-width:768px){
  body{padding-bottom:calc(60px + env(safe-area-inset-bottom))}
  .grid-container{padding-left:16px;padding-right:16px}
  .grid-x>.cell{padding-left:10px;padding-right:10px}
  .grid-margin-x{margin-left:-10px;margin-right:-10px}
  .rl-tabbar{display:block}
  .rl-pagehead{padding:112px 0 48px}
  .rl-pagehead h1{font-size:clamp(26px,7vw,36px)}
  .rl-pagehead-sub{font-size:15px}
  .rl-statbar-inner{grid-template-columns:repeat(2,1fr);gap:22px 8px;padding:26px 0}
  .rl-stat{border-left:0;padding:0}
  .rl-stat:nth-child(even){border-left:1px solid var(--line);padding-left:16px}
  .rl-grid-3{grid-template-columns:1fr}
  .rl-steps{grid-template-columns:1fr}
  .rl-item{grid-template-columns:84px 1fr;gap:14px;padding:18px 18px}
  .rl-item-thumb{width:84px;height:60px}
  .rl-item-side{grid-column:1 / -1;flex-direction:row;align-items:center;justify-content:space-between;text-align:left}
  .rl-note{padding:22px 20px}
  .rl-note ul{grid-template-columns:1fr;gap:12px}
  .rl-cta{padding:30px 22px}
  .rl-cta-actions{width:100%}
  .rl-cta-actions .rl-btn{width:100%}
  .rl-footer{padding:48px 0 26px}
  .rl-footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .rl-footer-brand{grid-column:1 / -1}
  .rl-footer-bottom{flex-direction:column;gap:8px;margin-top:34px}
  .rl-top{bottom:76px}
  .rl-faq-a p{padding-left:0}
  .rl-faq-q{font-size:15.5px;gap:12px}
}
@media (max-width:520px){
  .rl-footer-grid{grid-template-columns:1fr}
  .rl-logo-text{font-size:15.5px}
  .rl-main{padding:44px 0 60px}
  .rl-h2{font-size:22px}
  .rl-tabbar a{font-size:9.5px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}