/* roulang page: index */
:root{
  --rn-primary:#6D28D9;
  --rn-primary-hover:#7C3AED;
  --rn-primary-deep:#2A1046;
  --rn-primary-mid:#3A1766;
  --rn-tint:#F1EBFF;
  --rn-accent:#00D8A0;
  --rn-accent-deep:#046B4E;
  --rn-alert:#FF7A45;
  --rn-error:#D94A3D;
  --rn-body:#F6F5FB;
  --rn-card:#FFFFFF;
  --rn-border:#E5E2F0;
  --rn-text:#171327;
  --rn-text-2:#5A5470;
  --rn-text-3:#8B86A0;
  --rn-invert:#FFFFFF;
  --rn-invert-2:#CFC6E8;
  --rn-img-bg:#EDEAF7;
  --rn-r-card:16px;
  --rn-r-lg:20px;
  --rn-r-btn:10px;
  --rn-r-input:10px;
  --rn-r-pill:999px;
  --rn-shadow-card:0 1px 2px rgba(23,19,39,.04), 0 8px 24px rgba(23,19,39,.06);
  --rn-shadow-hover:0 12px 32px rgba(109,40,217,.14);
  --rn-shadow-nav:0 1px 8px rgba(23,19,39,.05);
  --rn-max:1200px;
  --rn-gutter:24px;
  --rn-font:system-ui,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--rn-body);
  color:var(--rn-text);
  font-family:var(--rn-font);
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  overflow-x:hidden;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
img{max-width:100%;display:block;border:0;}
a{color:var(--rn-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--rn-primary-hover);}
button{font-family:inherit;}
table{border-collapse:collapse;}
:focus-visible{outline:2px solid var(--rn-accent);outline-offset:2px;}
.rn-skip{
  position:absolute;left:-9999px;top:0;background:var(--rn-primary);color:#fff;
  padding:10px 16px;border-radius:0 0 10px 0;z-index:200;
}
.rn-skip:focus{left:0;color:#fff;}
.container{
  width:100%;max-width:var(--rn-max);
  margin:0 auto;padding:0 var(--rn-gutter);
}
.rn-num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ---------- 顶部导航 ---------- */
.rn-header{
  position:sticky;top:0;z-index:80;
  background:#fff;
  border-bottom:1px solid var(--rn-border);
  box-shadow:var(--rn-shadow-nav);
}
.rn-header__inner{
  display:flex;align-items:center;gap:16px;height:64px;
}
.rn-logo{
  display:flex;align-items:center;gap:10px;
  color:var(--rn-primary-deep);font-weight:800;font-size:17px;
  letter-spacing:.2px;white-space:nowrap;flex:0 0 auto;
}
.rn-logo:hover{color:var(--rn-primary);}
.rn-logo__mark{width:30px;height:30px;flex:0 0 auto;}
.rn-nav{display:flex;align-items:center;gap:2px;margin-left:10px;}
.rn-nav a{
  position:relative;display:inline-block;
  padding:20px 13px;font-size:14.5px;font-weight:500;
  color:var(--rn-text-2);transition:color .2s ease;
}
.rn-nav a:hover{color:var(--rn-primary);}
.rn-nav a.is-active{color:var(--rn-primary);font-weight:600;}
.rn-nav a.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:0;height:2px;
  background:var(--rn-primary);border-radius:2px 2px 0 0;
}
.rn-header__right{margin-left:auto;display:flex;align-items:center;gap:12px;}
.rn-search{position:relative;display:block;}
.rn-search input{
  width:196px;height:40px;border-radius:12px;
  border:1px solid transparent;background:#F6F5FB;
  padding:0 14px 0 38px;font-size:14px;color:var(--rn-text);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.rn-search input::placeholder{color:var(--rn-text-3);}
.rn-search input:focus{
  outline:none;background:#fff;border-color:var(--rn-primary);
  box-shadow:0 0 0 3px rgba(109,40,217,.18);
}
.rn-search__icon{
  position:absolute;left:13px;top:50%;transform:translateY(-50%);
  width:16px;height:16px;stroke:var(--rn-text-3);fill:none;
  stroke-width:1.6;stroke-linecap:round;pointer-events:none;
}
.rn-burger{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--rn-border);background:#fff;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
  cursor:pointer;margin-left:auto;padding:0;
}
.rn-burger span{display:block;width:18px;height:2px;background:var(--rn-text);border-radius:2px;transition:transform .2s ease;}
.rn-drawer__mask{
  position:fixed;inset:0;background:rgba(23,19,39,.45);
  opacity:0;visibility:hidden;transition:opacity .24s ease;z-index:90;
}
.rn-drawer__mask.is-open{opacity:1;visibility:visible;}
.rn-drawer{
  position:fixed;top:0;right:0;bottom:0;width:290px;max-width:86vw;
  background:#fff;z-index:100;padding:24px 20px;
  transform:translateX(102%);transition:transform .28s ease;
  box-shadow:-16px 0 40px rgba(23,19,39,.16);
  display:flex;flex-direction:column;gap:6px;overflow-y:auto;
}
.rn-drawer.is-open{transform:translateX(0);}
.rn-drawer__title{
  font-size:13px;color:var(--rn-text-3);font-weight:600;letter-spacing:.6px;
  margin-bottom:6px;
}
.rn-drawer nav a{
  display:block;padding:13px 12px;border-radius:10px;
  font-size:15px;font-weight:500;color:var(--rn-text-2);
}
.rn-drawer nav a:hover,.rn-drawer nav a.is-active{background:var(--rn-tint);color:var(--rn-primary);}
.rn-drawer .rn-btn{margin-top:14px;width:100%;}

/* ---------- 按钮 ---------- */
.rn-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--rn-r-btn);
  font-weight:600;font-size:15px;line-height:1.2;
  border:1.5px solid transparent;cursor:pointer;text-align:center;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.rn-btn--primary{background:var(--rn-primary);color:#fff;}
.rn-btn--primary:hover{background:var(--rn-primary-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--rn-shadow-hover);}
.rn-btn--primary:active{transform:translateY(0);box-shadow:none;}
.rn-btn--accent{background:var(--rn-accent);color:#08301F;}
.rn-btn--accent:hover{background:#1FE6B2;color:#08301F;transform:translateY(-1px);box-shadow:0 12px 30px rgba(0,216,160,.28);}
.rn-btn--accent:active{transform:translateY(0);}
.rn-btn--ghost{background:transparent;border-color:rgba(255,255,255,.55);color:#fff;}
.rn-btn--ghost:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-1px);}
.rn-btn--outline{background:transparent;border-color:var(--rn-primary);color:var(--rn-primary);}
.rn-btn--outline:hover{background:rgba(109,40,217,.08);color:var(--rn-primary);}
.rn-btn[disabled],.rn-btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}
.rn-linkmore{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;font-weight:600;color:var(--rn-primary);
}
.rn-linkmore svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;transition:transform .2s ease;}
.rn-linkmore:hover svg{transform:translateX(3px);}

/* ---------- 徽章 / 标签 ---------- */
.rn-badge{
  display:inline-flex;align-items:center;
  padding:3px 11px;border-radius:var(--rn-r-pill);
  background:var(--rn-tint);color:var(--rn-primary);
  font-size:12px;line-height:1.5;font-weight:600;white-space:nowrap;
}
.rn-badge--time{background:#EFEDF6;color:var(--rn-text-3);font-weight:500;}
.rn-badge--state{background:rgba(0,216,160,.18);color:var(--rn-accent-deep);}
.rn-badge--alert{background:rgba(255,122,69,.14);color:#B8491C;}
.rn-time{font-size:13px;color:var(--rn-text-3);font-variant-numeric:tabular-nums;}

/* ---------- 通用区块 ---------- */
.rn-section{padding:80px 0;}
.rn-section--tight{padding:64px 0;}
.rn-section__head{max-width:760px;margin-bottom:40px;}
.rn-section__head--center{margin-left:auto;margin-right:auto;text-align:center;}
.rn-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:1px;
  color:var(--rn-primary);margin-bottom:14px;
}
.rn-eyebrow::before{content:"";width:22px;height:2px;background:var(--rn-accent);border-radius:2px;}
.rn-h2{
  position:relative;font-size:30px;line-height:1.35;font-weight:800;
  color:var(--rn-text);letter-spacing:-.2px;
}
.rn-h2--bar{padding-left:16px;}
.rn-h2--bar::before{
  content:"";position:absolute;left:0;top:5px;bottom:5px;width:4px;
  background:var(--rn-primary);border-radius:3px;
}
.rn-sub{margin-top:14px;font-size:15.5px;color:var(--rn-text-2);line-height:1.8;}
.rn-divider{height:1px;background:var(--rn-border);border:0;margin:0;}

/* ---------- Hero ---------- */
.rn-hero{
  position:relative;
  background:linear-gradient(180deg,#2A1046 0%,#3A1766 100%);
  color:#fff;padding:72px 0 122px;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 56px),0 100%);
  overflow:hidden;
}
.rn-hero__dots{
  position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.08) 1px,transparent 1px);
  background-size:22px 22px;
}
.rn-hero__line{
  position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(0,216,160,.7),transparent);
}
.rn-hero__eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;font-weight:600;letter-spacing:1px;color:#A9E9D6;
  padding:6px 14px;border-radius:var(--rn-r-pill);
  border:1px solid rgba(0,216,160,.36);
  background:rgba(0,216,160,.08);
  margin-bottom:22px;
}
.rn-hero__title{
  font-size:44px;line-height:1.24;font-weight:800;letter-spacing:-.4px;
  color:#fff;max-width:14em;
}
.rn-hero__sub{
  margin-top:20px;font-size:17px;line-height:1.8;color:var(--rn-invert-2);
  max-width:30em;
}
.rn-hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.rn-hero__trust{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  margin-top:26px;font-size:13.5px;color:#BEAEE0;
}
.rn-hero__trust .rn-sep{width:1px;height:12px;background:rgba(207,198,232,.4);display:inline-block;}
.rn-hero__media{position:relative;margin-top:8px;}
.rn-hero__media img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  border-radius:var(--rn-r-lg);background:#231040;
  border:1px solid rgba(255,255,255,.14);
}
.rn-float-card{
  position:absolute;left:-18px;bottom:-22px;
  display:flex;align-items:center;gap:12px;
  background:#fff;color:var(--rn-text);
  border-radius:14px;padding:13px 18px;
  box-shadow:0 18px 44px rgba(10,4,26,.34);
  border:1px solid var(--rn-border);
}
.rn-float-card strong{display:block;font-size:14.5px;font-weight:700;line-height:1.4;}
.rn-float-card span{display:block;font-size:12.5px;color:var(--rn-text-3);line-height:1.5;}
.rn-dot{
  width:10px;height:10px;border-radius:50%;background:var(--rn-accent);
  box-shadow:0 0 0 4px rgba(0,216,160,.18);flex:0 0 auto;
}

/* ---------- 数据条 ---------- */
.rn-stats{
  position:relative;z-index:2;margin-top:-46px;
}
.rn-stats__box{
  background:#fff;border:1px solid var(--rn-border);
  border-radius:var(--rn-r-lg);box-shadow:var(--rn-shadow-card);
  padding:28px 8px;
  display:grid;grid-template-columns:repeat(4,1fr);
}
.rn-stat{padding:6px 22px;border-right:1px solid var(--rn-border);}
.rn-stat:last-child{border-right:0;}
.rn-stat__num{
  font-size:30px;font-weight:800;color:var(--rn-primary-deep);
  letter-spacing:-.5px;line-height:1.2;
}
.rn-stat__num em{font-style:normal;font-size:15px;font-weight:600;color:var(--rn-primary);margin-left:3px;}
.rn-stat__label{margin-top:6px;font-size:13.5px;color:var(--rn-text-2);}

/* ---------- 卡片 ---------- */
.rn-card{
  display:block;background:var(--rn-card);
  border:1px solid var(--rn-border);border-radius:var(--rn-r-card);
  box-shadow:var(--rn-shadow-card);overflow:hidden;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.rn-card:hover{transform:translateY(-2px);box-shadow:var(--rn-shadow-hover);border-color:#DCD5F2;}
.rn-card__media{
  display:block;background:var(--rn-img-bg);overflow:hidden;position:relative;
}
.rn-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.rn-card:hover .rn-card__media img{transform:scale(1.03);}
.rn-card__body{padding:24px;}
.rn-card__title{font-size:18px;line-height:1.5;font-weight:700;color:var(--rn-text);}
.rn-card:hover .rn-card__title{color:var(--rn-primary);}
.rn-card__desc{
  margin-top:10px;font-size:14.5px;line-height:1.75;color:var(--rn-text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rn-card__meta{
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:16px;
}
.rn-card--lead .rn-card__media img{aspect-ratio:16/9;}
.rn-card--lead .rn-card__title{font-size:22px;}
.rn-card--lead .rn-card__desc{-webkit-line-clamp:2;font-size:15px;}

.rn-mini{
  display:flex;gap:16px;padding:14px;border:1px solid var(--rn-border);
  border-radius:var(--rn-r-card);background:#fff;
  box-shadow:var(--rn-shadow-card);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.rn-mini:hover{transform:translateY(-2px);box-shadow:var(--rn-shadow-hover);border-color:#DCD5F2;}
.rn-mini__thumb{
  flex:0 0 120px;width:120px;aspect-ratio:16/9;border-radius:12px;
  overflow:hidden;background:var(--rn-img-bg);
}
.rn-mini__thumb img{width:100%;height:100%;object-fit:cover;}
.rn-mini__body{min-width:0;flex:1 1 auto;}
.rn-mini__title{
  font-size:15.5px;line-height:1.5;font-weight:700;color:var(--rn-text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rn-mini:hover .rn-mini__title{color:var(--rn-primary);}
.rn-mini__desc{
  margin-top:6px;font-size:13.5px;color:var(--rn-text-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;
}
.rn-mini__meta{display:flex;align-items:center;gap:10px;margin-top:10px;flex-wrap:wrap;}

.rn-newslist{display:flex;flex-direction:column;gap:16px;}
.rn-newsgrid{row-gap:24px;}
.rn-empty{
  text-align:center;background:#fff;border:1px dashed var(--rn-border);
  border-radius:var(--rn-r-lg);padding:56px 24px;
}
.rn-empty svg{width:52px;height:52px;stroke:var(--rn-text-3);fill:none;stroke-width:1.5;margin:0 auto 16px;}
.rn-empty p{font-size:15px;color:var(--rn-text-2);margin-bottom:16px;}

/* ---------- 三步上手 ---------- */
.rn-steps{
  display:grid;grid-template-columns:repeat(3,1fr);gap:32px;position:relative;
}
.rn-steps::before{
  content:"";position:absolute;top:26px;left:9%;right:9%;height:1px;
  border-top:1px dashed #D6CEEE;z-index:0;
}
.rn-step{position:relative;z-index:1;background:transparent;}
.rn-step__num{
  width:52px;height:52px;border-radius:50%;background:#fff;
  border:2px solid var(--rn-primary);color:var(--rn-primary);
  display:flex;align-items:center;justify-content:center;
  font-size:19px;font-weight:800;font-variant-numeric:tabular-nums;
  box-shadow:0 6px 18px rgba(109,40,217,.14);
}
.rn-step__title{margin-top:20px;font-size:18px;font-weight:700;color:var(--rn-text);}
.rn-step__desc{margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--rn-text-2);}
.rn-step__thumb{
  margin-top:18px;border-radius:14px;overflow:hidden;background:var(--rn-img-bg);
  border:1px solid var(--rn-border);
}
.rn-step__thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;}

/* ---------- 分类磁贴 ---------- */
.rn-tiles{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.rn-tile{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  background:#fff;border:1px solid var(--rn-border);border-radius:14px;
  padding:22px 22px;transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.rn-tile:hover{border-color:var(--rn-primary);transform:translateY(-2px);box-shadow:var(--rn-shadow-hover);}
.rn-tile__text strong{display:block;font-size:16.5px;font-weight:700;color:var(--rn-text);}
.rn-tile:hover .rn-tile__text strong{color:var(--rn-primary);}
.rn-tile__text span{display:block;margin-top:6px;font-size:13.5px;color:var(--rn-text-3);line-height:1.65;}
.rn-tile__arrow{
  flex:0 0 auto;width:34px;height:34px;border-radius:50%;
  background:var(--rn-tint);display:flex;align-items:center;justify-content:center;
}
.rn-tile__arrow svg{width:16px;height:16px;stroke:var(--rn-primary);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;transition:transform .2s ease;}
.rn-tile:hover .rn-tile__arrow svg{transform:translateX(3px);}

/* ---------- 案例 ---------- */
.rn-case-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.rn-case .rn-card__body{padding:26px;}
.rn-case__scene{font-size:19px;font-weight:700;line-height:1.5;}
.rn-case__text{margin-top:12px;font-size:14.5px;color:var(--rn-text-2);line-height:1.85;}
.rn-case__figure{
  margin-top:20px;padding-top:18px;border-top:1px dashed var(--rn-border);
  display:flex;align-items:flex-end;gap:12px;
}
.rn-case__num{
  font-size:28px;font-weight:800;color:var(--rn-primary);line-height:1;
  font-variant-numeric:tabular-nums;letter-spacing:-.5px;
}
.rn-case__note{font-size:12px;color:var(--rn-text-3);line-height:1.6;padding-bottom:2px;}
.rn-quote{
  margin:24px 0;background:#fff;border:1px solid var(--rn-border);
  border-left:4px solid var(--rn-primary);border-radius:12px;
  padding:22px 26px;box-shadow:var(--rn-shadow-card);
}
.rn-quote p{font-size:16.5px;line-height:1.85;color:var(--rn-text);}
.rn-quote cite{display:block;margin-top:12px;font-size:13px;color:var(--rn-text-3);font-style:normal;}

/* ---------- FAQ ---------- */
.rn-faq-grid{row-gap:32px;}
.rn-faq-lead p{margin-top:16px;font-size:15px;color:var(--rn-text-2);line-height:1.85;}
.rn-faq-lead .rn-btn{margin-top:22px;}
.rn-accordion{
  margin:0;border:1px solid var(--rn-border);border-radius:12px;
  overflow:hidden;background:#fff;list-style:none;
}
.rn-accordion .accordion-item{border-bottom:1px solid var(--rn-border);}
.rn-accordion .accordion-item:last-child{border-bottom:0;}
.rn-accordion .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 20px;background:#fff;border:0;
  font-size:16px;font-weight:600;color:var(--rn-text);line-height:1.6;
  transition:background .2s ease,color .2s ease;
}
.rn-accordion .accordion-title::before{display:none !important;}
.rn-accordion .accordion-title:hover{background:var(--rn-tint);color:var(--rn-primary);}
.rn-accordion .accordion-title::after{
  content:"+";flex:0 0 auto;font-size:20px;font-weight:600;
  color:var(--rn-primary);line-height:1;transition:transform .2s ease;
}
.rn-accordion .accordion-item.is-active .accordion-title{color:var(--rn-primary);}
.rn-accordion .accordion-item.is-active .accordion-title::after{content:"−";transform:rotate(180deg);}
.rn-accordion .accordion-content{
  display:none;background:#F6F5FB;border:0;
  padding:16px 20px 20px;font-size:15px;line-height:1.85;color:var(--rn-text-2);
}
.rn-accordion .accordion-content p+p{margin-top:10px;}

/* ---------- CTA ---------- */
.rn-cta{
  position:relative;background:var(--rn-primary-deep);color:#fff;
  overflow:hidden;
}
.rn-cta__dots{
  position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.08) 1px,transparent 1px);
  background-size:20px 20px;
}
.rn-cta__inner{
  position:relative;padding:72px 0;
  display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;
}
.rn-cta__title{font-size:28px;line-height:1.4;font-weight:800;color:#fff;}
.rn-cta__text{margin-top:12px;font-size:15px;color:var(--rn-invert-2);max-width:38em;line-height:1.8;}
.rn-cta__actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.rn-footer{background:#171327;color:var(--rn-invert-2);padding:60px 0 0;}
.rn-footer__grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
}
.rn-footer__brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px;}
.rn-footer__brand svg{width:28px;height:28px;flex:0 0 auto;}
.rn-footer p{margin-top:16px;font-size:13.5px;line-height:1.85;color:var(--rn-invert-2);max-width:30em;}
.rn-footer h4{font-size:14px;color:#fff;font-weight:700;margin-bottom:16px;}
.rn-footer li{margin-bottom:10px;}
.rn-footer li a{font-size:13.5px;color:var(--rn-invert-2);}
.rn-footer li a:hover{color:var(--rn-accent);}
.rn-footer__copy{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0;font-size:12.5px;color:#9C93BC;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
}

/* ---------- 返回顶部 ---------- */
.rn-backtop{
  position:fixed;right:24px;bottom:28px;width:46px;height:46px;border-radius:50%;
  background:var(--rn-primary);border:0;cursor:pointer;z-index:70;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 12px 28px rgba(109,40,217,.34);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .24s ease,transform .24s ease,visibility .24s;
}
.rn-backtop.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.rn-backtop:hover{background:var(--rn-primary-hover);}
.rn-backtop svg{width:20px;height:20px;stroke:#fff;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1024px){
  .rn-nav{display:none;}
  .rn-search{display:none;}
  .rn-header__right .rn-btn{display:none;}
  .rn-burger{display:flex;}
  .rn-hero{padding:56px 0 108px;}
  .rn-hero__title{font-size:34px;line-height:1.28;}
  .rn-hero__media{margin-top:36px;}
  .rn-stats__box{grid-template-columns:repeat(2,1fr);row-gap:20px;padding:22px 4px;}
  .rn-stat{border-right:0;padding:6px 20px;}
  .rn-stat:nth-child(odd){border-right:1px solid var(--rn-border);}
  .rn-steps{grid-template-columns:1fr;gap:28px;}
  .rn-steps::before{
    top:20px;bottom:20px;left:25px;right:auto;width:1px;height:auto;
    border-top:0;border-left:1px dashed #D6CEEE;
  }
  .rn-tiles{grid-template-columns:1fr;}
  .rn-case-grid{grid-template-columns:1fr;}
  .rn-section{padding:64px 0;}
  .rn-footer__grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media screen and (max-width:640px){
  :root{--rn-gutter:16px;}
  .container{padding:0 16px;}
  .rn-logo{font-size:15px;}
  .rn-hero{padding:40px 0 96px;clip-path:polygon(0 0,100% 0,100% calc(100% - 36px),0 100%);}
  .rn-hero__title{font-size:30px;line-height:1.3;}
  .rn-hero__sub{font-size:15.5px;margin-top:16px;}
  .rn-hero__actions{margin-top:26px;}
  .rn-hero__actions .rn-btn{width:100%;}
  .rn-hero__trust{gap:8px;font-size:12.5px;}
  .rn-float-card{left:12px;bottom:-16px;padding:11px 14px;}
  .rn-h2{font-size:24px;line-height:1.4;}
  .rn-sub{font-size:14.5px;}
  .rn-section{padding:48px 0;}
  .rn-section__head{margin-bottom:28px;}
  .rn-stats{margin-top:-34px;}
  .rn-stats__box{grid-template-columns:1fr;row-gap:0;}
  .rn-stat{border-right:0 !important;padding:14px 20px;border-bottom:1px solid var(--rn-border);}
  .rn-stat:last-child{border-bottom:0;}
  .rn-stat__num{font-size:26px;}
  .rn-card__body{padding:20px;}
  .rn-card--lead .rn-card__title{font-size:19px;}
  .rn-mini{flex-direction:column;gap:12px;}
  .rn-mini__thumb{width:100%;flex:0 0 auto;}
  .rn-step__num{width:44px;height:44px;font-size:17px;}
  .rn-cta__inner{padding:52px 0;flex-direction:column;align-items:flex-start;gap:26px;}
  .rn-cta__title{font-size:23px;}
  .rn-cta__actions{width:100%;}
  .rn-cta__actions .rn-btn{width:100%;}
  .rn-footer{padding-top:44px;}
  .rn-footer__grid{grid-template-columns:1fr;gap:28px;}
  .rn-footer__copy{margin-top:32px;flex-direction:column;gap:8px;}
  .rn-backtop{right:16px;bottom:18px;width:42px;height:42px;}
  .rn-quote{padding:18px 20px;}
  .rn-quote p{font-size:15.5px;}
}

/* roulang page: article */
:root{
  --rn-primary:#6D28D9;
  --rn-primary-hover:#7C3AED;
  --rn-primary-deep:#2A1046;
  --rn-primary-deep-2:#3A1766;
  --rn-tint:#F1EBFF;
  --rn-accent:#00D8A0;
  --rn-alert:#FF7A45;
  --rn-body:#F6F5FB;
  --rn-card:#FFFFFF;
  --rn-border:#E5E2F0;
  --rn-text:#171327;
  --rn-text-2:#5A5470;
  --rn-text-3:#8B86A0;
  --rn-invert:#FFFFFF;
  --rn-invert-2:#CFC6E8;
  --rn-img-ph:#EDEAF7;
  --rn-r-card:16px;
  --rn-r-img:20px;
  --rn-r-btn:10px;
  --rn-r-input:10px;
  --rn-r-badge:999px;
  --rn-shadow:0 1px 2px rgba(23,19,39,.04),0 8px 24px rgba(23,19,39,.06);
  --rn-shadow-hover:0 12px 32px rgba(109,40,217,.14);
  --rn-pad-block:80px;
  --rn-gutter:24px;
  --rn-font:system-ui,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--rn-body);color:var(--rn-text);font-family:var(--rn-font);font-size:16px;line-height:1.75;font-weight:400;font-variant-numeric:tabular-nums;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4,h5{margin:0;font-weight:800;line-height:1.25;letter-spacing:-.01em;color:var(--rn-text)}
p{margin:0 0 14px}
img{display:block;max-width:100%;height:auto}
a{color:var(--rn-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--rn-primary-hover)}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--rn-accent);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--rn-gutter)}
.rn-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- header ---------- */
.rn-header{position:sticky;top:0;z-index:80;background:#fff;border-bottom:1px solid var(--rn-border);box-shadow:0 1px 8px rgba(23,19,39,.05)}
.rn-header__inner{display:flex;align-items:center;gap:20px;height:64px}
.rn-logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;color:var(--rn-primary-deep);white-space:nowrap;flex:none}
.rn-logo:hover{color:var(--rn-primary-deep)}
.rn-logo__mark{width:30px;height:30px;flex:none}
.rn-nav{display:flex;align-items:center;gap:2px;flex:1 1 auto;min-width:0}
.rn-nav a{position:relative;padding:8px 13px;font-size:15px;color:var(--rn-text-2);border-radius:8px;white-space:nowrap}
.rn-nav a:hover{color:var(--rn-primary);background:var(--rn-tint)}
.rn-nav a.is-active{color:var(--rn-primary);font-weight:600}
.rn-nav a.is-active::after{content:"";position:absolute;left:13px;right:13px;bottom:-2px;height:2px;background:var(--rn-primary);border-radius:2px}
.rn-header__right{display:flex;align-items:center;gap:12px;margin-left:auto;flex:none}
.rn-search{display:flex;align-items:center;gap:8px;height:40px;width:232px;padding:0 12px;background:var(--rn-body);border:1px solid transparent;border-radius:12px;transition:border-color .2s,box-shadow .2s}
.rn-search:focus-within{border-color:var(--rn-primary);box-shadow:0 0 0 3px rgba(109,40,217,.18)}
.rn-search__icon{width:18px;height:18px;flex:none;fill:none;stroke:var(--rn-text-3);stroke-width:1.8;stroke-linecap:round}
.rn-search input{width:100%;border:0;background:transparent;outline:none;font-size:14px}
.rn-search input::placeholder{color:var(--rn-text-3)}
.rn-burger{display:none;flex-direction:column;justify-content:center;gap:5px;width:42px;height:42px;padding:0 10px;background:#fff;border:1px solid var(--rn-border);border-radius:10px;cursor:pointer}
.rn-burger span{display:block;height:2px;background:var(--rn-primary-deep);border-radius:2px;transition:transform .2s,opacity .2s}
.rn-burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.rn-burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.rn-burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* drawer */
.rn-drawer{position:fixed;inset:0 0 0 auto;width:min(320px,86vw);background:#fff;border-left:1px solid var(--rn-border);box-shadow:-12px 0 40px rgba(23,19,39,.14);transform:translateX(102%);transition:transform .28s ease;z-index:120;padding:24px 20px;overflow-y:auto}
.rn-drawer.is-open{transform:translateX(0)}
.rn-drawer__title{font-size:13px;color:var(--rn-text-3);letter-spacing:.08em;margin-bottom:14px}
.rn-drawer a{display:block;padding:12px 12px;border-radius:10px;color:var(--rn-text-2);font-size:15px}
.rn-drawer a:hover{background:var(--rn-tint);color:var(--rn-primary)}
.rn-drawer a.is-active{background:var(--rn-tint);color:var(--rn-primary);font-weight:600}
.rn-drawer .rn-btn{width:100%;justify-content:center;margin-top:16px}
.rn-mask{position:fixed;inset:0;background:rgba(23,19,39,.42);opacity:0;visibility:hidden;transition:opacity .25s;z-index:110}
.rn-mask.is-open{opacity:1;visibility:visible}

/* ---------- buttons / badges ---------- */
.rn-btn{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border:1.5px solid transparent;border-radius:var(--rn-r-btn);font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;white-space:nowrap}
.rn-btn--primary{background:var(--rn-primary);color:#fff;border-color:var(--rn-primary)}
.rn-btn--primary:hover{background:var(--rn-primary-hover);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(109,40,217,.28)}
.rn-btn--primary:active{transform:translateY(0);box-shadow:none}
.rn-btn--ghost{background:transparent;color:var(--rn-primary-deep);border-color:var(--rn-border)}
.rn-btn--ghost:hover{background:rgba(109,40,217,.08);color:var(--rn-primary);transform:translateY(-1px)}
.rn-btn--onDark{background:var(--rn-accent);color:#0B2A22;border-color:var(--rn-accent)}
.rn-btn--onDark:hover{color:#0B2A22;transform:translateY(-1px);box-shadow:0 10px 26px rgba(0,216,160,.3)}
.rn-btn--outlineLight{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.rn-btn--outlineLight:hover{color:#fff;background:rgba(255,255,255,.12)}
.rn-btn[disabled],.rn-btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}
.rn-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--rn-primary)}
.rn-link svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform .2s ease}
.rn-link:hover svg{transform:translateX(3px)}
.rn-badge{display:inline-flex;align-items:center;padding:3px 11px;border-radius:var(--rn-r-badge);font-size:12px;line-height:18px;font-weight:600}
.rn-badge--cat{background:var(--rn-tint);color:var(--rn-primary)}
.rn-badge--time{background:#EFEEF5;color:var(--rn-text-3);font-weight:500}
.rn-badge--ok{background:rgba(0,216,160,.16);color:#0B7B5C}

/* ---------- article head ---------- */
.rn-arthead{background:var(--rn-body);border-bottom:1px solid var(--rn-border);padding:26px 0 30px}
.rn-crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--rn-text-3);margin-bottom:16px}
.rn-crumb a{color:var(--rn-text-3)}
.rn-crumb a:hover{color:var(--rn-primary)}
.rn-crumb span.sep{color:#C9C4DA}
.rn-crumb .cur{max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.rn-arthead__h1{font-size:44px;line-height:1.24;max-width:900px}
.rn-arthead__meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:16px;font-size:13px;color:var(--rn-text-3)}
.rn-arthead__meta i{display:inline-block;width:1px;height:12px;background:#D9D5E6;font-style:normal}
.rn-arthead__meta .tag{color:var(--rn-alert);font-weight:600}

/* ---------- article layout ---------- */
.rn-artwrap{padding:var(--rn-pad-block) 0}
.rn-artgrid{display:block}
.rn-prose{max-width:780px;margin:0 auto;font-size:16.5px;line-height:1.85;color:#241F38}
.rn-prose>*+*{margin-top:18px}
.rn-prose p{margin:0 0 18px}
.rn-prose h2{position:relative;margin:32px 0 14px;padding-left:16px;font-size:26px;line-height:1.35}
.rn-prose h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--rn-primary)}
.rn-prose h3{margin:26px 0 10px;font-size:20px;line-height:1.4}
.rn-prose h4{margin:22px 0 8px;font-size:17px}
.rn-prose ul,.rn-prose ol{margin:0 0 18px;padding-left:22px}
.rn-prose ul li{position:relative;margin:8px 0;padding-left:4px;list-style:none}
.rn-prose ul li::before{content:"";position:absolute;left:-16px;top:11px;width:6px;height:6px;border-radius:2px;background:var(--rn-accent)}
.rn-prose ol{list-style:decimal}
.rn-prose ol li{margin:8px 0}
.rn-prose blockquote{margin:24px 0;padding:18px 22px;background:var(--rn-tint);border-left:4px solid var(--rn-primary);border-radius:12px;color:#3B2E5E}
.rn-prose blockquote p:last-child{margin-bottom:0}
.rn-prose img{margin:24px auto;border-radius:12px;background:var(--rn-img-ph)}
.rn-prose figure{margin:24px 0}
.rn-prose figcaption{margin-top:-12px;font-size:13px;color:var(--rn-text-3);text-align:center}
.rn-prose a{border-bottom:1px solid rgba(109,40,217,.35)}
.rn-prose a:hover{border-bottom-color:var(--rn-accent)}
.rn-prose code{background:#F1EFF8;border-radius:6px;padding:2px 6px;font-size:14px}
.rn-prose pre{overflow:auto;padding:16px;background:#221741;color:#EDE9FA;border-radius:12px}
.rn-prose pre code{background:none;color:inherit;padding:0}
.rn-prose table{width:100%;border-collapse:collapse;font-size:15px}
.rn-prose .table-scroll{overflow-x:auto;border:1px solid var(--rn-border);border-radius:12px;margin:20px 0}
.rn-prose th,.rn-prose td{border:1px solid var(--rn-border);padding:10px 14px;text-align:left}
.rn-prose th{background:var(--rn-tint);color:var(--rn-primary-deep);font-weight:600}
.rn-prose hr{border:0;border-top:1px solid var(--rn-border);margin:28px 0}
.rn-toc{display:none}
@media screen and (min-width:1280px){
  .rn-artgrid{display:grid;grid-template-columns:minmax(0,780px) 240px;justify-content:center;gap:40px}
  .rn-prose{max-width:none;margin:0}
  .rn-toc{display:block;align-self:start;position:sticky;top:96px}
  .rn-toc__box{background:#fff;border:1px solid var(--rn-border);border-radius:var(--rn-r-card);box-shadow:var(--rn-shadow);padding:18px}
  .rn-toc__title{font-size:13px;letter-spacing:.06em;color:var(--rn-text-3);margin-bottom:10px}
  .rn-toc a{display:block;padding:7px 0;font-size:13.5px;color:var(--rn-text-2);border-left:2px solid transparent;padding-left:10px;margin-left:-10px}
  .rn-toc a:hover{color:var(--rn-primary)}
  .rn-toc a.is-current{color:var(--rn-primary);font-weight:600;border-left-color:var(--rn-primary)}
}

/* ---------- tags + related ---------- */
.rn-artfoot{max-width:780px;margin:0 auto}
.rn-tags{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:40px}
.rn-tags__label{font-size:13px;color:var(--rn-text-3)}
.rn-tags a{padding:5px 13px;background:var(--rn-tint);color:var(--rn-primary);border-radius:var(--rn-r-badge);font-size:13px;font-weight:600}
.rn-tags a:hover{background:var(--rn-primary);color:#fff}
.rn-divider{height:1px;background:var(--rn-border);margin:32px 0 0;border:0}
.rn-artnav{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}

.rn-related{padding:0 0 var(--rn-pad-block)}
.rn-sec-head{margin-bottom:28px}
.rn-sec-head h2{font-size:30px}
.rn-sec-head p{margin-top:8px;color:var(--rn-text-2);font-size:15px}
.rn-cards3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rn-mcard{display:flex;flex-direction:column;background:var(--rn-card);border:1px solid var(--rn-border);border-radius:var(--rn-r-card);box-shadow:var(--rn-shadow);overflow:hidden;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.rn-mcard:hover{transform:translateY(-2px);box-shadow:var(--rn-shadow-hover);border-color:#D6CCF5}
.rn-mcard__thumb{aspect-ratio:16/9;background:var(--rn-img-ph);overflow:hidden}
.rn-mcard__thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.rn-mcard:hover .rn-mcard__thumb img{transform:scale(1.04)}
.rn-mcard__body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.rn-mcard__body h3{font-size:18px;line-height:1.45}
.rn-mcard:hover .rn-mcard__body h3{color:var(--rn-primary)}
.rn-mcard__body p{font-size:14px;color:var(--rn-text-2);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rn-mcard__meta{display:flex;align-items:center;gap:10px;margin-top:auto;font-size:12.5px;color:var(--rn-text-3)}

/* ---------- empty state ---------- */
.rn-empty{max-width:620px;margin:0 auto;text-align:center;background:#fff;border:1px solid var(--rn-border);border-radius:var(--rn-r-card);box-shadow:var(--rn-shadow);padding:48px 28px}
.rn-empty svg{width:56px;height:56px;margin:0 auto 16px;display:block;fill:none;stroke:var(--rn-primary);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.rn-empty h2{font-size:24px;margin-bottom:10px}
.rn-empty p{color:var(--rn-text-2);margin-bottom:22px}

/* ---------- cta ---------- */
.rn-cta{background:var(--rn-primary-deep);background-image:radial-gradient(rgba(255,255,255,.08) 1px,transparent 1px);background-size:16px 16px;color:#fff;padding:64px 0}
.rn-cta__inner{display:flex;align-items:center;justify-content:space-between;gap:32px}
.rn-cta h2{color:#fff;font-size:30px}
.rn-cta p{color:var(--rn-invert-2);margin:10px 0 0;font-size:15px;max-width:620px}
.rn-cta__actions{display:flex;gap:14px;flex:none;flex-wrap:wrap}

/* ---------- footer ---------- */
.rn-footer{background:#171327;color:var(--rn-invert-2);padding:60px 0 28px;font-size:14px}
.rn-footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.rn-footer__brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px;margin-bottom:12px}
.rn-footer__brand svg{width:28px;height:28px;flex:none}
.rn-footer h4{color:#fff;font-size:14px;margin-bottom:14px}
.rn-footer ul li{margin:8px 0}
.rn-footer a{color:var(--rn-invert-2);font-size:13px}
.rn-footer a:hover{color:var(--rn-accent)}
.rn-footer p{font-size:13px;line-height:1.8;margin:0}
.rn-footer__copy{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);color:#9E95BE;font-size:12.5px}

/* ---------- back to top ---------- */
.rn-top{position:fixed;right:22px;bottom:26px;width:46px;height:46px;display:flex;align-items:center;justify-content:center;border:0;border-radius:50%;background:var(--rn-primary);color:#fff;box-shadow:0 10px 26px rgba(109,40,217,.35);cursor:pointer;opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .25s,transform .25s,visibility .25s;z-index:90}
.rn-top.is-on{opacity:1;visibility:visible;transform:translateY(0)}
.rn-top svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

/* ---------- responsive ---------- */
@media screen and (max-width:1024px){
  :root{--rn-pad-block:64px}
  .rn-nav,.rn-search{display:none}
  .rn-burger{display:flex}
  .rn-header__inner{height:56px;gap:12px}
  .rn-logo{font-size:16px}
  .rn-arthead__h1{font-size:34px}
  .rn-cards3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .rn-cta__inner{flex-direction:column;align-items:flex-start}
  .rn-footer__grid{grid-template-columns:1fr 1fr}
}
@media screen and (max-width:640px){
  :root{--rn-pad-block:48px;--rn-gutter:16px}
  .rn-logo{font-size:15px;gap:8px}
  .rn-logo__mark{width:26px;height:26px}
  .rn-header__right .rn-btn{padding:9px 14px;font-size:14px}
  .rn-arthead__h1{font-size:28px;line-height:1.35}
  .rn-arthead{padding:20px 0 24px}
  .rn-prose{font-size:16px;line-height:1.8}
  .rn-prose h2{font-size:22px}
  .rn-cards3{grid-template-columns:1fr}
  .rn-sec-head h2{font-size:24px}
  .rn-cta h2{font-size:24px}
  .rn-cta__actions{width:100%}
  .rn-cta__actions .rn-btn{width:100%;justify-content:center}
  .rn-footer__grid{grid-template-columns:1fr;gap:26px}
  .rn-artnav .rn-btn{width:100%;justify-content:center}
  .rn-empty{padding:36px 20px}
}

/* roulang page: category1 */
:root{
  --rn-primary:#6D28D9;
  --rn-primary-deep:#2A1046;
  --rn-primary-mid:#3A1766;
  --rn-tint:#F1EBFF;
  --rn-accent:#00D8A0;
  --rn-alert:#FF7A45;
  --rn-body:#F6F5FB;
  --rn-card:#FFFFFF;
  --rn-border:#E5E2F0;
  --rn-text:#171327;
  --rn-text-2:#5A5470;
  --rn-text-3:#8B86A0;
  --rn-invert:#FFFFFF;
  --rn-invert-2:#CFC6E8;
  --rn-r-card:16px;
  --rn-r-lg:20px;
  --rn-r-btn:10px;
  --rn-r-input:10px;
  --rn-r-badge:999px;
  --rn-shadow-card:0 1px 2px rgba(23,19,39,.04), 0 8px 24px rgba(23,19,39,.06);
  --rn-shadow-hover:0 12px 32px rgba(109,40,217,.14);
  --rn-sec:80px;
  --rn-font:system-ui,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--rn-body);
  color:var(--rn-text);
  font-family:var(--rn-font);
  font-size:16px;
  line-height:28px;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--rn-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:#5B1FB8}
h1,h2,h3,h4{font-family:var(--rn-font);color:inherit;margin:0}
p{margin:0}
ul,ol{margin:0;padding:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--rn-accent);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ============ header ============ */
.rn-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--rn-border);
  box-shadow:0 1px 8px rgba(23,19,39,.05);
}
.rn-header__inner{display:flex;align-items:center;gap:22px;height:64px}
.rn-logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;color:var(--rn-primary-deep);white-space:nowrap;flex:0 0 auto}
.rn-logo:hover{color:var(--rn-primary-deep)}
.rn-logo__mark{width:30px;height:30px;flex:0 0 30px}
.rn-nav{display:flex;align-items:center;gap:26px;margin-left:6px}
.rn-nav a{
  position:relative;font-size:15px;color:var(--rn-text-2);font-weight:500;
  padding:20px 0;border-bottom:2px solid transparent;transition:color .2s ease,border-color .2s ease;
}
.rn-nav a:hover{color:var(--rn-primary)}
.rn-nav a.is-active{color:var(--rn-primary);border-bottom-color:var(--rn-primary);font-weight:600}
.rn-header__right{margin-left:auto;display:flex;align-items:center;gap:12px}
.rn-search{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 12px;
  background:var(--rn-body);border:1px solid transparent;border-radius:12px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.rn-search:focus-within{border-color:var(--rn-primary);box-shadow:0 0 0 3px rgba(109,40,217,.18)}
.rn-search__icon{width:18px;height:18px;flex:0 0 18px;fill:none;stroke:var(--rn-text-3);stroke-width:1.6;stroke-linecap:round}
.rn-search input{
  width:178px;height:38px;border:0!important;background:transparent!important;
  box-shadow:none!important;margin:0;padding:0;font-size:14px;color:var(--rn-text);
}
.rn-search input::placeholder{color:var(--rn-text-3)}
.rn-burger{
  display:none;width:44px;height:44px;border:1px solid var(--rn-border);border-radius:10px;
  background:#fff;flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;
  margin-left:auto;
}
.rn-burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--rn-primary-deep)}

/* drawer */
.rn-drawer-mask{position:fixed;inset:0;background:rgba(23,19,39,.45);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:80}
.rn-drawer-mask.is-open{opacity:1;visibility:visible}
.rn-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);background:#fff;z-index:90;
  padding:22px;display:flex;flex-direction:column;gap:10px;
  transform:translateX(100%);transition:transform .28s ease;
  box-shadow:-12px 0 32px rgba(23,19,39,.16);overflow-y:auto;
}
.rn-drawer.is-open{transform:none}
.rn-drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:6px}
.rn-drawer__title{font-size:14px;font-weight:700;color:var(--rn-text-3);letter-spacing:.06em}
.rn-drawer__close{width:36px;height:36px;border:1px solid var(--rn-border);border-radius:10px;background:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center}
.rn-drawer__close svg{width:16px;height:16px;stroke:var(--rn-primary-deep);stroke-width:1.8;fill:none;stroke-linecap:round}
.rn-drawer__nav{display:flex;flex-direction:column;gap:4px;margin:6px 0 14px}
.rn-drawer__nav a{
  display:block;padding:13px 12px;border-radius:10px;font-size:15px;color:var(--rn-text-2);
  transition:background .2s ease,color .2s ease;
}
.rn-drawer__nav a:hover{background:var(--rn-tint);color:var(--rn-primary)}
.rn-drawer__nav a.is-active{background:var(--rn-tint);color:var(--rn-primary);font-weight:600}

/* ============ buttons ============ */
.rn-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--rn-r-btn);font-size:15px;font-weight:600;
  border:0;cursor:pointer;line-height:1.2;transition:all .2s ease;
}
.rn-btn svg{width:18px;height:18px;stroke:currentColor;stroke-width:1.6;fill:none;stroke-linecap:round;stroke-linejoin:round}
.rn-btn--primary{background:var(--rn-primary);color:#fff}
.rn-btn--primary:hover{background:#7C3AED;color:#fff;transform:translateY(-1px);box-shadow:var(--rn-shadow-hover)}
.rn-btn--primary:active{transform:none;box-shadow:none}
.rn-btn--accent{background:var(--rn-accent);color:#08322A}
.rn-btn--accent:hover{background:#1FE7B2;color:#08322A;transform:translateY(-1px);box-shadow:0 12px 28px rgba(0,216,160,.28)}
.rn-btn--accent:active{transform:none}
.rn-btn--ghost{background:transparent;border:1.5px solid rgba(255,255,255,.55);color:#fff}
.rn-btn--ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.85)}
.rn-btn--outline{background:transparent;border:1.5px solid var(--rn-primary);color:var(--rn-primary)}
.rn-btn--outline:hover{background:rgba(109,40,217,.08);color:var(--rn-primary)}
.rn-btn[disabled],.rn-btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}
.rn-linkmore{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--rn-primary)}
.rn-linkmore svg{width:16px;height:16px;stroke:currentColor;stroke-width:1.8;fill:none;stroke-linecap:round;transition:transform .2s ease}
.rn-linkmore:hover svg{transform:translateX(3px)}

/* ============ page hero ============ */
.rn-pagehero{
  position:relative;overflow:hidden;color:#fff;
  background:linear-gradient(180deg,var(--rn-primary-deep),var(--rn-primary-mid));
  padding:38px 0 54px;min-height:250px;
}
.rn-pagehero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.08;
  background-image:radial-gradient(rgba(255,255,255,.6) 1px,transparent 1px);
  background-size:22px 22px;
}
.rn-pagehero .container{position:relative;z-index:1}
.rn-crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--rn-invert-2);margin-bottom:18px;flex-wrap:wrap}
.rn-crumb a{color:var(--rn-invert-2)}
.rn-crumb a:hover{color:var(--rn-accent)}
.rn-crumb i{font-style:normal;color:rgba(207,198,232,.6)}
.rn-pagehero h1{
  font-size:clamp(30px,3.6vw,44px);line-height:1.28;font-weight:800;
  margin:0 0 14px;max-width:22em;letter-spacing:-.01em;
}
.rn-lede{font-size:16px;line-height:30px;color:#DBD1F2;max-width:660px;margin:0 0 24px}
.rn-hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:22px}
.rn-trust{display:flex;align-items:center;flex-wrap:wrap;gap:10px;font-size:13px;color:var(--rn-invert-2)}
.rn-sep{width:1px;height:12px;background:rgba(207,198,232,.4);display:inline-block}

/* ============ sections ============ */
.rn-section{padding:var(--rn-sec) 0}
.rn-section--white{background:#fff}
.rn-sec-head{max-width:780px;margin-bottom:36px}
.rn-sec-head h2{
  position:relative;padding-left:16px;font-size:clamp(22px,2.4vw,30px);line-height:1.34;
  font-weight:800;margin:0 0 12px;
}
.rn-sec-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--rn-primary);
}
.rn-sec-head p{font-size:15px;line-height:28px;color:var(--rn-text-2)}

.rn-split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.rn-split__text p{color:var(--rn-text-2);font-size:15.5px;line-height:30px;margin-bottom:14px}
.rn-figure img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--rn-r-lg);
  background:#EDEAF7;box-shadow:var(--rn-shadow-card);
}
.rn-figure figcaption{font-size:13px;color:var(--rn-text-3);margin-top:12px}

.rn-numlist{list-style:none;margin:26px 0 0;padding:0;display:grid;gap:14px}
.rn-numlist li{
  display:flex;gap:14px;background:#fff;border:1px solid var(--rn-border);
  border-radius:var(--rn-r-card);padding:18px 20px;box-shadow:var(--rn-shadow-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.rn-numlist li:hover{transform:translateY(-2px);box-shadow:var(--rn-shadow-hover);border-color:#D6CCF2}
.rn-num{
  flex:0 0 34px;width:34px;height:34px;border-radius:50%;
  border:1.6px solid var(--rn-primary);color:var(--rn-primary);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;
}
.rn-numlist h3{font-size:17px;line-height:26px;font-weight:700;margin:0 0 6px}
.rn-numlist p{font-size:14px;line-height:24px;color:var(--rn-text-2)}

.rn-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.rn-card{
  background:var(--rn-card);border:1px solid var(--rn-border);border-radius:var(--rn-r-card);
  padding:24px;box-shadow:var(--rn-shadow-card);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.rn-card:hover{transform:translateY(-2px);box-shadow:var(--rn-shadow-hover);border-color:#D6CCF2}
.rn-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:12px;background:#EDEAF7;margin-bottom:18px}
.rn-card h3{font-size:18px;line-height:26px;font-weight:700;margin:0 0 10px;transition:color .2s ease}
.rn-card:hover h3{color:var(--rn-primary)}
.rn-card p{font-size:15px;line-height:28px;color:var(--rn-text-2)}
.rn-badge{
  display:inline-block;background:var(--rn-tint);color:var(--rn-primary);
  border-radius:var(--rn-r-badge);padding:3px 12px;font-size:12px;line-height:18px;
  font-weight:600;margin-bottom:12px;
}
.rn-badge--time{background:#EFEEF5;color:var(--rn-text-3)}
.rn-badge--ok{background:rgba(0,216,160,.15);color:#046B50}

.rn-quotebar{
  margin-top:32px;background:#fff;border-left:4px solid var(--rn-primary);
  border-radius:0 12px 12px 0;padding:20px 24px;box-shadow:var(--rn-shadow-card);
}
.rn-quotebar p{font-size:16px;line-height:28px;color:var(--rn-text)}
.rn-quotebar cite{display:block;margin-top:8px;font-style:normal;font-size:13px;color:var(--rn-text-3)}

.rn-tablewrap{overflow-x:auto;border:1px solid var(--rn-border);border-radius:var(--rn-r-card);background:#fff;box-shadow:var(--rn-shadow-card)}
.rn-table{width:100%;border-collapse:collapse;min-width:660px}
.rn-table th,.rn-table td{padding:15px 20px;text-align:left;font-size:14.5px;line-height:26px}
.rn-table th{background:var(--rn-tint);color:var(--rn-primary-deep);font-weight:700;white-space:nowrap}
.rn-table td{color:var(--rn-text-2);border-top:1px solid var(--rn-border)}
.rn-table td:first-child{color:var(--rn-text);font-weight:600}

.rn-plain{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:14px 32px;margin-bottom:12px}
.rn-plain li{display:flex;gap:10px;align-items:flex-start;font-size:15px;line-height:28px;color:var(--rn-text-2)}
.rn-plain svg{width:18px;height:18px;flex:0 0 18px;margin-top:5px;fill:none;stroke:var(--rn-accent);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}

.rn-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:32px}
.rn-stat{background:#fff;border:1px solid var(--rn-border);border-radius:var(--rn-r-card);padding:24px;box-shadow:var(--rn-shadow-card)}
.rn-stat b{display:block;font-size:28px;line-height:36px;font-weight:800;color:var(--rn-primary);font-variant-numeric:tabular-nums}
.rn-stat span{display:block;font-size:13px;line-height:20px;color:var(--rn-text-3);margin-top:4px}

/* accordion */
.rn-accordion{list-style:none;margin:0;padding:0;background:transparent}
.rn-accordion .accordion-item{
  border:1px solid var(--rn-border);border-radius:12px;background:#fff;
  margin-bottom:12px;overflow:hidden;box-shadow:var(--rn-shadow-card);
}
.rn-accordion .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  height:56px;padding:0 20px;border:0;background:#fff;
  font-size:16px;font-weight:600;color:var(--rn-text);line-height:56px;
}
.rn-accordion .accordion-title::before{display:none}
.rn-accordion .accordion-title:hover{color:var(--rn-primary);background:#FCFBFF}
.rn-accordion .accordion-title .rn-acc-icon{
  width:22px;height:22px;flex:0 0 22px;fill:none;stroke:var(--rn-primary);
  stroke-width:1.8;stroke-linecap:round;transition:transform .2s ease;
}
.rn-accordion .accordion-title[aria-expanded="true"] .rn-acc-icon{transform:rotate(135deg)}
.rn-accordion .accordion-content{
  padding:4px 20px 22px;margin:0;border:0;background:#F6F5FB;
  font-size:15px;line-height:28px;color:var(--rn-text-2);
}

.rn-tiles{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.rn-tile{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:#fff;border:1px solid var(--rn-border);border-radius:var(--rn-r-card);
  padding:22px 24px;box-shadow:var(--rn-shadow-card);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.rn-tile:hover{transform:translateY(-2px);box-shadow:var(--rn-shadow-hover);border-color:var(--rn-primary)}
.rn-tile strong{display:block;font-size:16px;line-height:26px;color:var(--rn-text);margin-bottom:6px}
.rn-tile:hover strong{color:var(--rn-primary)}
.rn-tile span{display:block;font-size:13px;line-height:20px;color:var(--rn-text-3)}
.rn-tile svg{width:20px;height:20px;flex:0 0 20px;fill:none;stroke:var(--rn-primary);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;transition:transform .2s ease}
.rn-tile:hover svg{transform:translateX(3px)}

/* CTA */
.rn-cta{position:relative;overflow:hidden;background:var(--rn-primary-deep);color:#fff;padding:64px 0}
.rn-cta::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.08;
  background-image:radial-gradient(rgba(255,255,255,.6) 1px,transparent 1px);
  background-size:20px 20px;
}
.rn-cta__inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.rn-cta h2{font-size:clamp(22px,2.4vw,28px);line-height:1.4;font-weight:800;margin:0 0 10px}
.rn-cta p{color:var(--rn-invert-2);font-size:15px;line-height:28px;max-width:560px}
.rn-cta__actions{display:flex;gap:12px;flex-wrap:wrap}

/* footer */
.rn-footer{background:#171327;color:var(--rn-invert-2);padding:56px 0 26px;font-size:13px;line-height:22px}
.rn-footer__grid{display:grid;grid-template-columns:2.1fr 1fr 1fr 1fr;gap:32px}
.rn-footer__brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:16px;margin:0 0 14px}
.rn-footer__brand svg{width:28px;height:28px;flex:0 0 28px}
.rn-footer h4{color:#fff;font-size:14px;font-weight:700;margin:0 0 14px}
.rn-footer ul{list-style:none;display:grid;gap:10px}
.rn-footer a{color:var(--rn-invert-2);font-size:13px}
.rn-footer a:hover{color:var(--rn-accent)}
.rn-footer__copy{
  margin-top:36px;padding-top:18px;border-top:1px solid rgba(207,198,232,.18);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12.5px;color:#8B86A0;
}

/* back to top */
.rn-totop{
  position:fixed;right:24px;bottom:28px;width:46px;height:46px;border-radius:50%;
  background:var(--rn-primary);color:#fff;border:0;cursor:pointer;z-index:70;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 10px 24px rgba(109,40,217,.35);
  opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity .25s ease,transform .25s ease,visibility .25s ease,background .2s ease;
}
.rn-totop.is-show{opacity:1;visibility:visible;transform:none}
.rn-totop:hover{background:#7C3AED}
.rn-totop svg{width:20px;height:20px;fill:none;stroke:#fff;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

@media (max-width:1024px){
  :root{--rn-sec:64px}
  .rn-nav,.rn-header__right{display:none}
  .rn-burger{display:flex}
  .rn-split{grid-template-columns:1fr;gap:32px}
  .rn-plain{grid-template-columns:1fr}
  .rn-footer__grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .rn-pagehero{padding:30px 0 44px;min-height:0}
  .rn-cards{grid-template-columns:1fr}
  .rn-stats{grid-template-columns:1fr}
  .rn-tiles{grid-template-columns:1fr}
  .rn-cta__inner{flex-direction:column;align-items:flex-start}
}
@media (max-width:640px){
  :root{--rn-sec:48px}
  .container{padding:0 16px}
  .rn-header__inner{height:56px;gap:12px}
  .rn-logo{font-size:15px}
  .rn-logo__mark{width:26px;height:26px;flex:0 0 26px}
  .rn-lede{font-size:15px;line-height:28px}
  .rn-hero-actions{flex-direction:column;align-items:stretch}
  .rn-hero-actions .rn-btn,.rn-cta__actions .rn-btn{width:100%}
  .rn-cards,.rn-tiles,.rn-stats{gap:16px}
  .rn-card{padding:20px}
  .rn-accordion .accordion-title{font-size:15px;padding:0 16px}
  .rn-accordion .accordion-content{padding:4px 16px 20px}
  .rn-footer__grid{grid-template-columns:1fr}
  .rn-footer__copy{flex-direction:column}
  .rn-totop{right:16px;bottom:18px;width:42px;height:42px}
}

/* roulang page: category2 */
:root{
  --rn-primary:#6D28D9;
  --rn-primary-hover:#7C3AED;
  --rn-primary-deep:#2A1046;
  --rn-primary-mid:#3A1766;
  --rn-tint:#F1EBFF;
  --rn-accent:#00D8A0;
  --rn-accent-deep:#0B7A5C;
  --rn-alert:#FF7A45;
  --rn-body:#F6F5FB;
  --rn-card:#FFFFFF;
  --rn-border:#E5E2F0;
  --rn-img-bg:#EDEAF7;
  --rn-text:#171327;
  --rn-text-2:#5A5470;
  --rn-text-3:#8B86A0;
  --rn-inv:#FFFFFF;
  --rn-inv-2:#CFC6E8;
  --rn-danger:#D94A3D;
  --rn-r-card:16px;
  --rn-r-img:20px;
  --rn-r-btn:10px;
  --rn-r-input:10px;
  --rn-r-badge:999px;
  --rn-shadow-card:0 1px 2px rgba(23,19,39,.04), 0 8px 24px rgba(23,19,39,.06);
  --rn-shadow-hover:0 12px 32px rgba(109,40,217,.14);
  --rn-font:system-ui,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--rn-font);
  font-size:16px;
  line-height:1.75;
  color:var(--rn-text);
  background:var(--rn-body);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;background:var(--rn-img-bg)}
a{color:var(--rn-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:#5B21B6}
button,input{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.28;color:var(--rn-text);letter-spacing:-.01em}
h1{font-size:44px;line-height:1.18}
h2{font-size:30px;line-height:1.3}
h3{font-size:18px;line-height:1.45;font-weight:700}
p{margin:0 0 16px}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--rn-accent);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.rn-num{font-variant-numeric:tabular-nums}

/* ---------- Header ---------- */
.rn-header{position:sticky;top:0;z-index:90;background:#fff;border-bottom:1px solid var(--rn-border);box-shadow:0 1px 8px rgba(23,19,39,.05)}
.rn-header__inner{display:flex;align-items:center;gap:22px;height:64px}
.rn-logo{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:var(--rn-primary-deep);white-space:nowrap;flex:none}
.rn-logo:hover{color:var(--rn-primary-deep)}
.rn-logo__mark{width:28px;height:28px;flex:none;background:none}
.rn-nav{display:flex;align-items:center;gap:22px;margin-left:6px}
.rn-nav a{position:relative;display:inline-block;font-size:15px;color:var(--rn-text-2);padding:21px 0;white-space:nowrap}
.rn-nav a:hover{color:var(--rn-primary)}
.rn-nav a.is-active{color:var(--rn-primary);font-weight:600}
.rn-nav a.is-active::after{content:"";position:absolute;left:0;right:0;bottom:13px;height:2px;border-radius:2px;background:var(--rn-primary)}
.rn-header__right{margin-left:auto;display:flex;align-items:center;gap:14px}
.rn-search{display:flex;align-items:center;gap:8px;height:40px;padding:0 12px;background:var(--rn-body);border:1px solid transparent;border-radius:12px;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease}
.rn-search__icon{width:18px;height:18px;flex:none;fill:none;stroke:var(--rn-text-3);stroke-width:1.8;stroke-linecap:round}
.rn-search input{width:168px;border:0;outline:0;background:transparent;font-size:14px;color:var(--rn-text)}
.rn-search input::placeholder{color:var(--rn-text-3)}
.rn-search:focus-within{background:#fff;border-color:var(--rn-primary);box-shadow:0 0 0 3px rgba(109,40,217,.18)}
.rn-burger{display:none;width:40px;height:40px;border:1px solid var(--rn-border);border-radius:10px;background:#fff;cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:4px}
.rn-burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--rn-text);transition:transform .2s ease,opacity .2s ease}
.rn-burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.rn-burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.rn-burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.rn-drawer{display:none;border-top:1px solid var(--rn-border);background:#fff;padding:12px 0 20px}
.rn-drawer.is-open{display:block}
.rn-drawer a{display:block;padding:12px 0;font-size:15px;color:var(--rn-text-2);border-bottom:1px solid var(--rn-border)}
.rn-drawer a.is-active{color:var(--rn-primary);font-weight:600}
.rn-drawer .rn-btn{width:100%;margin-top:16px}
.rn-drawer__search{display:flex;align-items:center;gap:8px;height:44px;padding:0 12px;margin-top:14px;background:var(--rn-body);border:1px solid var(--rn-border);border-radius:12px}
.rn-drawer__search input{flex:1;border:0;outline:0;background:transparent;font-size:14px}

/* ---------- Buttons ---------- */
.rn-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border:1.5px solid transparent;border-radius:var(--rn-r-btn);font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;white-space:nowrap;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease}
.rn-btn--primary{background:var(--rn-primary);color:#fff}
.rn-btn--primary:hover{background:var(--rn-primary-hover);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(109,40,217,.28)}
.rn-btn--primary:active{transform:translateY(0);box-shadow:none}
.rn-btn--accent{background:var(--rn-accent);color:#08221A}
.rn-btn--accent:hover{background:#1AE6B1;color:#08221A;transform:translateY(-1px);box-shadow:0 10px 22px rgba(0,216,160,.3)}
.rn-btn--ghost{border-color:rgba(255,255,255,.55);background:transparent;color:#fff}
.rn-btn--ghost:hover{background:rgba(255,255,255,.14);color:#fff}
.rn-btn--outline{border-color:var(--rn-primary);background:transparent;color:var(--rn-primary)}
.rn-btn--outline:hover{background:rgba(109,40,217,.08);color:var(--rn-primary)}
.rn-btn[disabled]{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}
.rn-linkmore{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--rn-primary)}
.rn-linkmore svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;transition:transform .2s ease}
.rn-linkmore:hover svg{transform:translateX(3px)}

/* ---------- Badges ---------- */
.rn-badge{display:inline-flex;align-items:center;gap:5px;padding:3px 10px;border-radius:var(--rn-r-badge);font-size:12px;line-height:18px;font-weight:600}
.rn-badge--cat{background:var(--rn-tint);color:var(--rn-primary)}
.rn-badge--time{background:#EEEDF4;color:var(--rn-text-3);font-weight:500}
.rn-badge--ok{background:rgba(0,216,160,.16);color:var(--rn-accent-deep)}
.rn-badge--alert{background:rgba(255,122,69,.14);color:#B4441A}

/* ---------- Category hero ---------- */
.rn-cathero{position:relative;padding:46px 0 58px;background-color:var(--rn-primary-deep);background-image:url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center;color:#fff;overflow:hidden}
.rn-cathero::before{content:"";position:absolute;inset:0;background:linear-gradient(118deg,rgba(42,16,70,.95) 0%,rgba(58,23,102,.88) 55%,rgba(42,16,70,.9) 100%)}
.rn-cathero::after{content:"";position:absolute;inset:0;opacity:.08;background-image:radial-gradient(rgba(255,255,255,.9) 1px,transparent 1px);background-size:18px 18px}
.rn-cathero .container{position:relative;z-index:2}
.rn-breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.7);margin-bottom:18px}
.rn-breadcrumb a{color:rgba(255,255,255,.82)}
.rn-breadcrumb a:hover{color:var(--rn-accent)}
.rn-breadcrumb span[aria-current]{color:#fff}
.rn-cathero h1{color:#fff;font-size:44px;line-height:1.16;margin-bottom:16px;max-width:820px}
.rn-cathero__sub{max-width:640px;font-size:17px;line-height:1.8;color:var(--rn-inv-2);margin-bottom:24px}
.rn-trustline{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13.5px;color:rgba(255,255,255,.8)}
.rn-trustline i{display:inline-block;width:1px;height:12px;background:rgba(255,255,255,.32)}
.rn-cathero__stats{display:flex;flex-wrap:wrap;gap:34px;margin-top:30px;padding-top:26px;border-top:1px solid rgba(255,255,255,.16)}
.rn-cathero__stat b{display:block;font-size:28px;font-weight:800;color:var(--rn-accent);font-variant-numeric:tabular-nums;line-height:1.2}
.rn-cathero__stat span{font-size:12px;color:rgba(255,255,255,.72)}

/* ---------- Sections ---------- */
.rn-section{padding:80px 0}
.rn-section--tight{padding:64px 0}
.rn-section--plain{background:#fff}
.rn-section-head{max-width:720px;margin-bottom:40px}
.rn-section-head .rn-badge{margin-bottom:14px}
.rn-section-head h2{margin-bottom:12px}
.rn-section-head p{color:var(--rn-text-2)}
.rn-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;letter-spacing:.08em;color:var(--rn-primary);text-transform:uppercase;margin-bottom:14px}
.rn-eyebrow::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--rn-primary)}

/* ---------- Intro + stat row ---------- */
.rn-intro__grid{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:start}
.rn-intro__lead{font-size:17px;line-height:1.85;color:var(--rn-text-2)}
.rn-intro__lead strong{color:var(--rn-text)}
.rn-intro__card{background:#fff;border:1px solid var(--rn-border);border-radius:var(--rn-r-card);padding:24px;box-shadow:var(--rn-shadow-card)}
.rn-intro__card h3{margin-bottom:14px}
.rn-intro__card li{display:flex;gap:10px;font-size:14.5px;color:var(--rn-text-2);padding:9px 0;border-bottom:1px dashed var(--rn-border)}
.rn-intro__card li:last-child{border-bottom:0}
.rn-intro__card li svg{width:16px;height:16px;flex:none;margin-top:5px;fill:none;stroke:var(--rn-accent);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

/* ---------- Staggered feature rows ---------- */
.rn-stagger{display:flex;flex-direction:column;gap:64px}
.rn-stagger__row{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.rn-stagger__row--flip .rn-stagger__media{order:2}
.rn-stagger__media{position:relative;border-radius:var(--rn-r-img);overflow:hidden;background:var(--rn-img-bg);box-shadow:var(--rn-shadow-card)}
.rn-stagger__media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--rn-r-img);transition:transform .5s ease}
.rn-stagger__row:hover .rn-stagger__media img{transform:scale(1.03)}
.rn-stagger__tag{position:absolute;left:16px;top:16px;display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:var(--rn-r-badge);background:#fff;color:var(--rn-primary);font-size:12px;font-weight:700;box-shadow:0 4px 14px rgba(23,19,39,.12)}
.rn-stagger__body h3{font-size:24px;line-height:1.35;margin-bottom:14px}
.rn-stagger__body p{color:var(--rn-text-2)}
.rn-stagger__list{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.rn-stagger__list li{display:flex;gap:10px;font-size:14.5px;color:var(--rn-text-2)}
.rn-stagger__list li b{color:var(--rn-text);font-weight:700}
.rn-stagger__dot{width:18px;height:18px;flex:none;margin-top:4px;border-radius:50%;background:var(--rn-tint);color:var(--rn-primary);font-size:11px;font-weight:800;display:flex;align-items:center;justify-content:center;font-variant-numeric:tabular-nums}

/* ---------- Numbered checklist ---------- */
.rn-check{background:#fff;border:1px solid var(--rn-border);border-radius:var(--rn-r-card);padding:32px;box-shadow:var(--rn-shadow-card)}
.rn-check__grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px 32px}
.rn-check__item{display:flex;gap:14px;padding:18px;border-radius:12px;background:var(--rn-body);transition:background .2s ease}
.rn-check__item:hover{background:var(--rn-tint)}
.rn-check__no{flex:none;width:34px;height:34px;border-radius:50%;border:1.5px solid var(--rn-primary);color:var(--rn-primary);font-size:13px;font-weight:800;display:flex;align-items:center;justify-content:center;font-variant-numeric:tabular-nums;background:#fff}
.rn-check__item h3{font-size:16px;margin-bottom:6px}
.rn-check__item p{font-size:14px;color:var(--rn-text-2);margin:0}

/* ---------- Rank list ---------- */
.rn-rank{display:flex;flex-direction:column;border:1px solid var(--rn-border);border-radius:var(--rn-r-card);overflow:hidden;background:#fff;box-shadow:var(--rn-shadow-card)}
.rn-rank__item{display:flex;align-items:flex-start;gap:18px;padding:20px 24px;border-bottom:1px solid var(--rn-border);transition:background .2s ease}
.rn-rank__item:last-child{border-bottom:0}
.rn-rank__item:hover{background:var(--rn-body)}
.rn-rank__no{flex:none;font-size:20px;font-weight:800;color:var(--rn-primary);font-variant-numeric:tabular-nums;width:38px;line-height:1.5}
.rn-rank__body{flex:1;min-width:0}
.rn-rank__body h3{font-size:16.5px;margin-bottom:4px}
.rn-rank__body p{font-size:14px;color:var(--rn-text-2);margin:0}
.rn-rank__side{flex:none;padding-top:2px}

/* ---------- Cross tiles ---------- */
.rn-tiles{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.rn-tile{display:flex;align-items:center;gap:18px;padding:24px;background:#fff;border:1px solid var(--rn-border);border-radius:var(--rn-r-card);box-shadow:var(--rn-shadow-card);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.rn-tile:hover{transform:translateY(-2px);border-color:var(--rn-primary);box-shadow:var(--rn-shadow-hover)}
.rn-tile__icon{flex:none;width:46px;height:46px;border-radius:12px;background:var(--rn-tint);display:flex;align-items:center;justify-content:center}
.rn-tile__icon svg{width:22px;height:22px;fill:none;stroke:var(--rn-primary);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.rn-tile__txt h3{font-size:17px;margin-bottom:4px}
.rn-tile__txt p{font-size:13.5px;color:var(--rn-text-2);margin:0}
.rn-tile__arrow{margin-left:auto;flex:none;color:var(--rn-primary);width:18px;height:18px}
.rn-tile__arrow svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;transition:transform .2s ease}
.rn-tile:hover .rn-tile__arrow svg{transform:translateX(3px)}

/* ---------- Note bar ---------- */
.rn-note{display:flex;gap:16px;padding:20px 24px;border-radius:12px;background:var(--rn-tint);border-left:4px solid var(--rn-primary)}
.rn-note svg{flex:none;width:22px;height:22px;margin-top:3px;fill:none;stroke:var(--rn-primary);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.rn-note p{font-size:14.5px;color:var(--rn-text-2);margin:0}
.rn-note strong{color:var(--rn-text)}

/* ---------- CTA ---------- */
.rn-cta{position:relative;background:var(--rn-primary-deep);color:#fff;padding:64px 0;overflow:hidden}
.rn-cta::after{content:"";position:absolute;inset:0;opacity:.07;background-image:radial-gradient(rgba(255,255,255,.9) 1px,transparent 1px);background-size:20px 20px}
.rn-cta__inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap}
.rn-cta h2{color:#fff;margin-bottom:10px;font-size:30px}
.rn-cta p{color:var(--rn-inv-2);max-width:620px;margin:0}
.rn-cta__btns{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- Footer ---------- */
.rn-footer{background:#171327;color:var(--rn-inv-2);padding:64px 0 28px}
.rn-footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(207,198,232,.16)}
.rn-footer h4{font-size:14px;color:#fff;margin-bottom:16px;font-weight:700}
.rn-footer ul li{margin-bottom:10px}
.rn-footer a{font-size:13px;color:var(--rn-inv-2)}
.rn-footer a:hover{color:var(--rn-accent)}
.rn-footer__brand{display:inline-flex;align-items:center;gap:10px;font-size:16px;font-weight:800;color:#fff;margin-bottom:14px}
.rn-footer__brand svg{width:26px;height:26px;flex:none}
.rn-footer__grid p{font-size:13px;line-height:1.85;max-width:340px}
.rn-footer__copy{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:12.5px;color:rgba(207,198,232,.72);padding-top:22px}

/* ---------- Back to top ---------- */
.rn-top{position:fixed;right:22px;bottom:26px;z-index:80;width:46px;height:46px;border-radius:50%;border:0;background:var(--rn-primary);color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;opacity:0;visibility:hidden;transform:translateY(10px);box-shadow:0 10px 24px rgba(109,40,217,.32);transition:opacity .25s ease,transform .25s ease,visibility .25s ease}
.rn-top.is-show{opacity:1;visibility:visible;transform:translateY(0)}
.rn-top svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

/* ---------- Responsive ---------- */
@media screen and (max-width:1024px){
  h1{font-size:36px}
  h2{font-size:26px}
  .rn-nav{display:none}
  .rn-search{display:none}
  .rn-header__right .rn-btn{display:none}
  .rn-burger{display:flex}
  .rn-header__inner{height:60px}
  .rn-cathero h1{font-size:34px}
  .rn-section{padding:64px 0}
  .rn-section--tight{padding:52px 0}
  .rn-intro__grid{grid-template-columns:1fr;gap:32px}
  .rn-stagger{gap:52px}
  .rn-stagger__row{grid-template-columns:1fr;gap:26px}
  .rn-stagger__row--flip .rn-stagger__media{order:0}
  .rn-check__grid{grid-template-columns:1fr}
  .rn-footer__grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media screen and (max-width:640px){
  body{font-size:15.5px}
  h1{font-size:30px;line-height:1.22}
  h2{font-size:23px}
  .container{padding:0 16px}
  .rn-logo span{font-size:15px}
  .rn-header__inner{gap:12px}
  .rn-cathero{padding:32px 0 40px}
  .rn-cathero h1{font-size:28px;margin-bottom:12px}
  .rn-cathero__sub{font-size:15.5px;margin-bottom:18px}
  .rn-cathero__stats{gap:22px;margin-top:22px;padding-top:20px}
  .rn-cathero__stat b{font-size:23px}
  .rn-section{padding:48px 0}
  .rn-section--tight{padding:40px 0}
  .rn-stagger{gap:42px}
  .rn-stagger__body h3{font-size:20px}
  .rn-check{padding:20px}
  .rn-check__item{padding:14px}
  .rn-rank__item{padding:16px;gap:12px;flex-wrap:wrap}
  .rn-rank__no{width:30px;font-size:17px}
  .rn-rank__side{padding-top:0}
  .rn-tiles{grid-template-columns:1fr}
  .rn-cta{padding:44px 0}
  .rn-cta h2{font-size:23px}
  .rn-cta__btns{width:100%}
  .rn-cta__btns .rn-btn{width:100%}
  .rn-footer{padding:48px 0 22px}
  .rn-footer__grid{grid-template-columns:1fr;gap:28px}
  .rn-footer__copy{flex-direction:column;gap:8px}
  .rn-top{right:14px;bottom:18px;width:42px;height:42px}
}

/* roulang page: category3 */
:root{
  --rn-primary:#6D28D9;
  --rn-primary-deep:#2A1046;
  --rn-primary-deep-2:#3A1766;
  --rn-tint:#F1EBFF;
  --rn-accent:#00D8A0;
  --rn-alert:#FF7A45;
  --rn-bg:#F6F5FB;
  --rn-card:#FFFFFF;
  --rn-border:#E5E2F0;
  --rn-text:#171327;
  --rn-text-2:#5A5470;
  --rn-text-3:#8B86A0;
  --rn-invert:#FFFFFF;
  --rn-invert-2:#CFC6E8;
  --rn-img-bg:#EDEAF7;
  --rn-r-card:16px;
  --rn-r-lg:20px;
  --rn-r-btn:10px;
  --rn-r-input:10px;
  --rn-shadow-card:0 1px 2px rgba(23,19,39,.04), 0 8px 24px rgba(23,19,39,.06);
  --rn-shadow-hover:0 12px 32px rgba(109,40,217,.14);
  --rn-foot-bg:#171327;
  --rn-font:system-ui,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--rn-font);
  font-size:16px;
  line-height:1.75;
  color:var(--rn-text);
  background:var(--rn-bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5,h6{
  margin:0;
  font-family:var(--rn-font);
  font-weight:700;
  line-height:1.32;
  color:var(--rn-text);
  letter-spacing:-.2px;
}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none;transition:color .2s ease}
img{max-width:100%;display:block;border:0}
button{font-family:inherit;font-size:inherit;cursor:pointer}
input,textarea,select{font-family:inherit;font-size:inherit}
strong{font-weight:700}
:focus-visible{outline:2px solid var(--rn-accent);outline-offset:2px}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.rn-section{padding:80px 0}
.rn-section--tight{padding:64px 0}
.rn-section--alt{background:#fff}
.rn-section__head{max-width:760px;margin:0 auto 40px;text-align:center}
.rn-section__head--left{margin-left:0;text-align:left}
.rn-eyebrow{
  display:inline-block;
  font-size:12px;
  line-height:18px;
  letter-spacing:.08em;
  font-weight:700;
  color:var(--rn-primary);
  background:var(--rn-tint);
  border-radius:var(--rn-shadow-card) 999px 999px 999px;
  border-radius:999px;
  padding:4px 12px;
  margin-bottom:14px;
}
h2.rn-h2{
  font-size:30px;
  line-height:40px;
  font-weight:800;
  position:relative;
  padding-left:16px;
}
h2.rn-h2::before{
  content:"";
  position:absolute;
  left:0;top:6px;
  width:4px;height:28px;
  border-radius:2px;
  background:var(--rn-primary);
}
.rn-section__head h2.rn-h2{padding-left:0}
.rn-section__head h2.rn-h2::before{display:none}
.rn-section__head p{
  margin-top:12px;
  color:var(--rn-text-2);
  font-size:16px;
  line-height:1.8;
}
.rn-lead{color:var(--rn-text-2)}

/* header */
.rn-header{
  position:sticky;
  top:0;
  z-index:70;
  background:#fff;
  border-bottom:1px solid var(--rn-border);
  box-shadow:0 1px 8px rgba(23,19,39,.05);
}
.rn-header__inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:64px;
}
.rn-logo{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
  font-weight:800;
  font-size:18px;
  color:var(--rn-primary-deep);
  letter-spacing:-.3px;
}
.rn-logo__mark{width:30px;height:30px;flex-shrink:0}
.rn-nav{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:8px;
}
.rn-nav a{
  display:inline-block;
  padding:8px 12px;
  font-size:15px;
  font-weight:500;
  color:var(--rn-text-2);
  border-bottom:2px solid transparent;
  transition:color .2s ease,border-color .2s ease;
}
.rn-nav a:hover{color:var(--rn-primary)}
.rn-nav a.is-active{
  color:var(--rn-primary);
  font-weight:700;
  border-bottom-color:var(--rn-primary);
}
.rn-nav__cta{display:none}
.rn-header__right{
  display:flex;
  align-items:center;
  gap:12px;
  margin-left:auto;
}
.rn-search{
  display:flex;
  align-items:center;
  gap:8px;
  height:40px;
  padding:0 12px;
  border-radius:12px;
  background:var(--rn-bg);
  border:1px solid transparent;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.rn-search:focus-within{
  background:#fff;
  border-color:var(--rn-primary);
  box-shadow:0 0 0 3px rgba(109,40,217,.18);
}
.rn-search__icon{
  width:18px;height:18px;
  flex-shrink:0;
  stroke:var(--rn-text-3);
  stroke-width:1.6;
  fill:none;
  stroke-linecap:round;
}
.rn-search input{
  border:0;
  background:transparent;
  outline:none;
  width:170px;
  font-size:14px;
  color:var(--rn-text);
}
.rn-search input::placeholder{color:var(--rn-text-3)}
.rn-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  border-radius:var(--rn-r-btn);
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  border:1.5px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.rn-btn--primary{background:var(--rn-primary);color:#fff}
.rn-btn--primary:hover{background:#7C3AED;transform:translateY(-1px);box-shadow:0 10px 22px rgba(109,40,217,.28)}
.rn-btn--primary:active{transform:translateY(0);box-shadow:none}
.rn-btn--accent{background:var(--rn-accent);color:#0C2B23}
.rn-btn--accent:hover{background:#1FE7B1;transform:translateY(-1px);box-shadow:0 10px 22px rgba(0,216,160,.3)}
.rn-btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.rn-btn--ghost:hover{background:rgba(255,255,255,.12);border-color:#fff}
.rn-btn--outline{background:transparent;color:var(--rn-primary);border-color:var(--rn-primary)}
.rn-btn--outline:hover{background:rgba(109,40,217,.08)}
.rn-btn[disabled]{opacity:.4;cursor:not-allowed;transform:none}
.rn-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--rn-primary);
  font-weight:600;
  font-size:15px;
}
.rn-link svg{width:16px;height:16px;stroke:currentColor;stroke-width:1.6;fill:none;stroke-linecap:round;stroke-linejoin:round;transition:transform .2s ease}
.rn-link:hover svg{transform:translateX(3px)}
.rn-burger{
  display:none;
  width:40px;height:40px;
  border:1px solid var(--rn-border);
  border-radius:10px;
  background:#fff;
  padding:10px 9px;
  flex-direction:column;
  justify-content:space-between;
}
.rn-burger span{display:block;height:2px;background:var(--rn-primary-deep);border-radius:2px}

/* breadcrumb */
.rn-crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:6px;
  font-size:13px;
  line-height:20px;
  color:var(--rn-text-3);
}
.rn-crumb a{color:var(--rn-text-2)}
.rn-crumb a:hover{color:var(--rn-primary)}
.rn-crumb span.sep{color:var(--rn-border)}

/* hero */
.rn-pagehero{
  position:relative;
  background:linear-gradient(180deg,#F7F4FF 0%,#F1EBFF 62%,#F6F5FB 100%);
  overflow:hidden;
  padding:56px 0 64px;
  text-align:center;
}
.rn-pagehero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(109,40,217,.10) 1px,transparent 1px);
  background-size:18px 18px;
  opacity:.7;
  pointer-events:none;
}
.rn-pagehero__bg{
  position:absolute;
  inset:0;
  background-image:url(/assets/images/backpic/back-2.png);
  background-size:cover;
  background-position:center;
  opacity:.14;
  pointer-events:none;
}
.rn-pagehero .container{position:relative;z-index:2}
.rn-pagehero .rn-crumb{justify-content:center;margin-bottom:20px}
.rn-pagehero h1{
  font-size:44px;
  line-height:56px;
  font-weight:800;
  max-width:900px;
  margin:0 auto;
  color:var(--rn-primary-deep);
}
.rn-pagehero h1 em{
  font-style:normal;
  color:var(--rn-primary);
}
.rn-pagehero__sub{
  margin:18px auto 0;
  max-width:680px;
  font-size:17px;
  line-height:1.85;
  color:var(--rn-text-2);
}
.rn-pagehero__acts{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:center;
  margin-top:28px;
}
.rn-pagehero__meta{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:0;
  margin-top:26px;
  font-size:13px;
  color:var(--rn-text-2);
}
.rn-pagehero__meta span{padding:0 14px;position:relative}
.rn-pagehero__meta span + span::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  width:1px;height:12px;
  margin-top:-6px;
  background:var(--rn-border);
}

/* ladder */
.rn-ladder{display:flex;flex-direction:column;gap:16px;margin-top:8px}
.rn-ladder__item{
  position:relative;
  display:flex;
  gap:18px;
  align-items:flex-start;
  background:#fff;
  border:1px solid var(--rn-border);
  border-left:3px solid var(--rn-primary);
  border-radius:var(--rn-r-card);
  padding:24px;
  box-shadow:var(--rn-shadow-card);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.rn-ladder__item--1{width:100%;max-width:820px;margin:0 auto}
.rn-ladder__item--2{width:100%;max-width:940px;margin:0 auto}
.rn-ladder__item--3{width:100%;max-width:1060px;margin:0 auto}
.rn-ladder__item:hover{transform:translateY(-2px);box-shadow:var(--rn-shadow-hover)}
.rn-ladder__num{
  flex-shrink:0;
  width:44px;height:44px;
  border-radius:999px;
  border:1.6px solid var(--rn-primary);
  color:var(--rn-primary);
  display:flex;align-items:center;justify-content:center;
  font-weight:800;
  font-size:16px;
  font-variant-numeric:tabular-nums;
  background:var(--rn-tint);
}
.rn-ladder__item--2 .rn-ladder__num{background:#fff}
.rn-ladder__item--3 .rn-ladder__num{background:var(--rn-primary);color:#fff;border-color:var(--rn-primary)}
.rn-ladder__body h3{font-size:18px;line-height:26px;margin-bottom:8px}
.rn-ladder__body p{color:var(--rn-text-2);font-size:15.5px}
.rn-ladder__tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.rn-tag{
  display:inline-block;
  font-size:12px;
  line-height:18px;
  padding:3px 10px;
  border-radius:999px;
  background:var(--rn-tint);
  color:var(--rn-primary);
  font-weight:600;
}
.rn-tag--time{background:#EFEDF6;color:var(--rn-text-2)}
.rn-tag--ok{background:rgba(0,216,160,.16);color:#0B6B54}

/* split */
.rn-split{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:center;
}
.rn-split--rev .rn-split__media{order:2}
.rn-split__media{
  position:relative;
  border-radius:var(--rn-r-lg);
  overflow:hidden;
  background:linear-gradient(135deg,#EDEAF7 0%,#E2DCF6 100%);
  box-shadow:var(--rn-shadow-card);
  aspect-ratio:16/10;
}
.rn-split__media img{width:100%;height:100%;object-fit:cover}
.rn-split__badge{
  position:absolute;
  left:18px;
  bottom:18px;
  background:#fff;
  border-radius:12px;
  padding:12px 16px;
  box-shadow:0 8px 22px rgba(23,19,39,.14);
  border:1px solid var(--rn-border);
}
.rn-split__badge b{
  display:block;
  font-size:26px;
  line-height:1.1;
  color:var(--rn-primary);
  font-variant-numeric:tabular-nums;
  font-weight:800;
}
.rn-split__badge small{font-size:12px;color:var(--rn-text-2)}
.rn-split__body h2{margin-bottom:16px}
.rn-split__body p{color:var(--rn-text-2);margin-bottom:14px}
.rn-check{display:flex;flex-direction:column;gap:12px;margin-top:20px}
.rn-check li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  font-size:15.5px;
  color:var(--rn-text);
}
.rn-check svg{
  width:20px;height:20px;flex-shrink:0;margin-top:3px;
  stroke:var(--rn-primary);stroke-width:1.8;fill:none;stroke-linecap:round;stroke-linejoin:round;
}
.rn-check li span b{display:block;font-weight:700;margin-bottom:2px}
.rn-check li span small{color:var(--rn-text-2);font-size:14px;line-height:1.7;display:block}
.rn-numlist{counter-reset:rn;display:flex;flex-direction:column;gap:14px;margin-top:20px}
.rn-numlist li{
  counter-increment:rn;
  position:relative;
  padding:14px 16px 14px 56px;
  background:var(--rn-bg);
  border-radius:12px;
  border:1px solid var(--rn-border);
  font-size:15px;
  color:var(--rn-text-2);
}
.rn-numlist li::before{
  content:counter(rn,decimal-leading-zero);
  position:absolute;
  left:16px;top:14px;
  font-size:14px;
  font-weight:800;
  color:var(--rn-primary);
  font-variant-numeric:tabular-nums;
}
.rn-numlist li b{color:var(--rn-text)}

/* blocker band */
.rn-band{
  background:var(--rn-primary-deep);
  color:#fff;
  position:relative;
  overflow:hidden;
}
.rn-band::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:20px 20px;
  opacity:.35;
  pointer-events:none;
}
.rn-band .container{position:relative;z-index:2}
.rn-band h2{color:#fff;font-size:28px;line-height:38px;font-weight:800;padding-left:0}
.rn-band h2::before{display:none}
.rn-band__head{max-width:720px;margin-bottom:36px}
.rn-band__head p{color:var(--rn-invert-2);margin-top:12px}
.rn-band__grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.rn-issue{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(207,198,232,.28);
  border-radius:var(--rn-r-card);
  padding:20px 22px;
  transition:background .22s ease,border-color .22s ease,transform .22s ease;
}
.rn-issue:hover{background:rgba(255,255,255,.1);border-color:var(--rn-accent);transform:translateY(-2px)}
.rn-issue h3{color:#fff;font-size:17px;line-height:26px;margin-bottom:8px}
.rn-issue p{color:var(--rn-invert-2);font-size:14.5px;line-height:1.8}
.rn-issue__fix{
  display:inline-block;
  margin-top:12px;
  font-size:12px;
  line-height:18px;
  padding:3px 10px;
  border-radius:999px;
  background:rgba(0,216,160,.16);
  color:var(--rn-accent);
  font-weight:700;
}

/* tiles */
.rn-tiles{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.rn-tile{
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  gap:18px;
  background:#fff;
  border:1px solid var(--rn-border);
  border-radius:var(--rn-r-card);
  padding:24px;
  box-shadow:var(--rn-shadow-card);
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.rn-tile:hover{border-color:var(--rn-primary);transform:translateY(-2px);box-shadow:var(--rn-shadow-hover)}
.rn-tile h3{font-size:18px;line-height:26px;margin-bottom:8px}
.rn-tile:hover h3{color:var(--rn-primary)}
.rn-tile p{font-size:14.5px;color:var(--rn-text-2)}
.rn-tile__go{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--rn-primary);
  font-weight:600;
  font-size:14px;
}
.rn-tile__go svg{width:15px;height:15px;stroke:currentColor;stroke-width:1.8;fill:none;stroke-linecap:round;stroke-linejoin:round;transition:transform .2s ease}
.rn-tile:hover .rn-tile__go svg{transform:translateX(3px)}

/* faq */
.rn-faqwrap{display:grid;grid-template-columns:4fr 8fr;gap:40px;align-items:start}
.rn-faqwrap__intro h2{margin-bottom:14px}
.rn-faqwrap__intro p{color:var(--rn-text-2);font-size:15.5px}
.rn-faq__item{
  border:1px solid var(--rn-border);
  border-radius:12px;
  background:#fff;
  overflow:hidden;
}
.rn-faq__item + .rn-faq__item{margin-top:12px}
.rn-faq__q{
  width:100%;
  min-height:56px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:8px 20px;
  background:#fff;
  border:0;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--rn-text);
  transition:color .2s ease,background .2s ease;
}
.rn-faq__q:hover{color:var(--rn-primary)}
.rn-faq__icon{
  position:relative;
  flex-shrink:0;
  width:18px;height:18px;
}
.rn-faq__icon::before,.rn-faq__icon::after{
  content:"";
  position:absolute;
  left:0;top:8px;
  width:18px;height:2px;
  border-radius:2px;
  background:var(--rn-primary);
  transition:transform .22s ease;
}
.rn-faq__icon::after{transform:rotate(90deg)}
.rn-faq__item.is-open .rn-faq__icon::after{transform:rotate(0)}
.rn-faq__a{
  padding:0 20px 20px;
  font-size:15px;
  line-height:1.85;
  color:var(--rn-text-2);
  background:var(--rn-bg);
  border-top:1px solid var(--rn-border);
  padding-top:16px;
}
.rn-faq__a[hidden]{display:none}

/* cta */
.rn-cta{
  background:linear-gradient(160deg,#2A1046 0%,#3A1766 100%);
  color:#fff;
  position:relative;
  overflow:hidden;
}
.rn-cta::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(255,255,255,.15) 1px,transparent 1px);
  background-size:22px 22px;
  opacity:.32;
  pointer-events:none;
}
.rn-cta .container{position:relative;z-index:2}
.rn-cta__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.rn-cta h2{color:#fff;font-size:28px;line-height:38px;font-weight:800;padding-left:0}
.rn-cta h2::before{display:none}
.rn-cta p{color:var(--rn-invert-2);margin-top:12px;max-width:620px;font-size:15.5px}
.rn-cta__acts{display:flex;gap:12px;flex-wrap:wrap}

/* back to top */
.rn-top{
  position:fixed;
  right:24px;
  bottom:24px;
  width:46px;height:46px;
  border-radius:999px;
  border:0;
  background:var(--rn-primary);
  color:#fff;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 10px 26px rgba(109,40,217,.34);
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:opacity .24s ease,transform .24s ease,visibility .24s ease;
  z-index:80;
}
.rn-top.is-show{opacity:1;visibility:visible;transform:translateY(0)}
.rn-top svg{width:20px;height:20px;stroke:currentColor;stroke-width:1.8;fill:none;stroke-linecap:round;stroke-linejoin:round}

/* footer */
.rn-footer{background:var(--rn-foot-bg);color:var(--rn-invert-2);padding:56px 0 28px}
.rn-footer__grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1fr;
  gap:32px;
  padding-bottom:32px;
  border-bottom:1px solid rgba(207,198,232,.18);
}
.rn-footer__brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-weight:800;
  font-size:17px;
  margin-bottom:14px;
}
.rn-footer__brand svg{width:28px;height:28px;flex-shrink:0}
.rn-footer p{font-size:13.5px;line-height:1.85}
.rn-footer h4{color:#fff;font-size:14px;margin-bottom:14px;font-weight:700}
.rn-footer li{margin-bottom:10px}
.rn-footer li a{font-size:13px;color:var(--rn-invert-2)}
.rn-footer li a:hover{color:var(--rn-accent)}
.rn-footer__copy{
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding-top:22px;
  font-size:12.5px;
  color:var(--rn-text-3);
}

/* responsive */
@media (max-width:1439px){
  .rn-pagehero h1{font-size:40px;line-height:52px}
}
@media (max-width:1024px){
  .rn-header__inner{height:56px;gap:12px}
  .rn-logo{font-size:15px}
  .rn-logo__mark{width:26px;height:26px}
  .rn-nav{
    position:fixed;
    top:56px;
    right:0;
    bottom:0;
    width:min(320px,84vw);
    background:#fff;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    margin:0;
    padding:16px 20px 28px;
    overflow-y:auto;
    transform:translateX(105%);
    transition:transform .28s ease;
    box-shadow:-10px 0 30px rgba(23,19,39,.12);
    z-index:60;
  }
  body.rn-nav-open .rn-nav{transform:translateX(0)}
  body.rn-nav-open::before{
    content:"";
    position:fixed;
    inset:0;
    background:rgba(23,19,39,.42);
    z-index:55;
  }
  .rn-nav a{
    padding:14px 4px;
    font-size:16px;
    border-bottom:1px solid var(--rn-border);
    border-left:3px solid transparent;
  }
  .rn-nav a.is-active{
    border-bottom-color:var(--rn-border);
    border-left-color:var(--rn-primary);
    padding-left:10px;
  }
  .rn-nav__cta{
    display:block;
    margin-top:18px;
    text-align:center;
    background:var(--rn-primary);
    color:#fff;
    border-radius:var(--rn-r-btn);
    font-weight:700;
    padding:13px 4px;
    border-bottom:0;
  }
  .rn-nav__cta:hover{color:#fff}
  .rn-search{display:none}
  .rn-header__right .rn-btn{display:none}
  .rn-burger{display:flex}
  .rn-header__right{margin-left:auto}
  .rn-section{padding:64px 0}
  .rn-section--tight{padding:52px 0}
  .rn-split{grid-template-columns:1fr;gap:28px}
  .rn-split--rev .rn-split__media{order:0}
  .rn-band__grid{grid-template-columns:1fr}
  .rn-tiles{grid-template-columns:1fr 1fr}
  .rn-faqwrap{grid-template-columns:1fr;gap:24px}
  .rn-footer__grid{grid-template-columns:1fr 1fr;gap:28px}
  .rn-pagehero{padding:44px 0 52px}
  .rn-pagehero h1{font-size:34px;line-height:44px}
}
@media (max-width:640px){
  .container{padding:0 16px}
  .rn-section{padding:48px 0}
  .rn-section--tight{padding:44px 0}
  .rn-pagehero{padding:36px 0 44px}
  .rn-pagehero h1{font-size:30px;line-height:40px}
  .rn-pagehero__sub{font-size:15.5px}
  .rn-pagehero__acts{flex-direction:column}
  .rn-pagehero__acts .rn-btn{width:100%}
  .rn-pagehero__meta span{padding:0 10px;font-size:12.5px}
  h2.rn-h2{font-size:23px;line-height:32px;padding-left:12px}
  h2.rn-h2::before{height:22px;top:5px}
  .rn-ladder__item{flex-direction:column;gap:12px;padding:20px}
  .rn-ladder__item--1,.rn-ladder__item--2,.rn-ladder__item--3{max-width:100%}
  .rn-band h2{font-size:23px;line-height:32px}
  .rn-tiles{grid-template-columns:1fr}
  .rn-cta h2{font-size:23px;line-height:32px}
  .rn-cta__acts{width:100%}
  .rn-cta__acts .rn-btn{width:100%}
  .rn-footer__grid{grid-template-columns:1fr;gap:24px}
  .rn-footer__copy{flex-direction:column;gap:8px}
  .rn-top{right:16px;bottom:16px}
  .rn-faq__q{font-size:15px;padding:8px 16px}
  .rn-faq__a{padding:14px 16px 18px}
}