/* roulang page: index */
/* ============================================================
   设计变量
   ============================================================ */
:root{
  --rl-primary:#1264D9;
  --rl-primary-dark:#0f52b3;
  --rl-primary-a08:rgba(18,100,217,.08);
  --rl-primary-a12:rgba(18,100,217,.12);
  --rl-primary-a16:rgba(18,100,217,.16);
  --rl-neon:#35F2D6;
  --rl-coral:#FF7A45;
  --rl-bg:#F4F7FB;
  --rl-card:#FFFFFF;
  --rl-soft:#EAF0F8;
  --rl-border:#E3EAF3;
  --rl-border-strong:#D7E1EE;
  --rl-text:#1B2430;
  --rl-muted:#5C6B7E;
  --rl-dark:#0B1220;
  --rl-dark-2:#111c2f;
  --rl-dark-text:#E7EEF8;
  --rl-dark-muted:#9FB3CC;
  --rl-dark-nav:#C7D5E8;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:12px;
  --radius-pill:999px;
  --shadow-sm:0 1px 2px rgba(16,52,98,.06);
  --shadow-md:0 6px 20px rgba(16,52,98,.08);
  --shadow-lg:0 16px 40px rgba(16,52,98,.12);
  --sec-space:88px;
}

/* ============================================================
   基础 reset
   ============================================================ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--rl-bg);
  color:var(--rl-text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
  font-size:16px;
  font-weight:400;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block;border:0}
a{color:var(--rl-primary);text-decoration:none;transition:color .18s ease,background-color .18s ease,transform .18s ease,border-color .18s ease}
a:hover{color:var(--rl-primary-dark)}
button{font-family:inherit;cursor:pointer}
h1,h2,h3,h4,p,figure,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
input,select,textarea{font-family:inherit;font-size:15px}
:focus-visible{outline:3px solid var(--rl-neon);outline-offset:2px}
.rl-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.rl-num{font-variant-numeric:tabular-nums}
.rl-section{padding:var(--sec-space) 0}
.rl-section--soft{background:var(--rl-soft)}
.rl-section--white{background:#fff}
.rl-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* 覆盖 Foundation 默认皮肤 */
.button,.top-bar,.accordion,.callout,.card{
  background:none;border:0;border-radius:0;box-shadow:none;color:inherit;font-family:inherit;
}
.grid-container{padding-left:24px;padding-right:24px}

/* ============================================================
   通用标题 / 按钮 / 徽章
   ============================================================ */
.rl-sec-head{max-width:760px;margin-bottom:40px}
.rl-sec-head h2{
  position:relative;
  padding-left:18px;
  font-size:32px;
  font-weight:700;
  line-height:1.35;
  letter-spacing:.2px;
}
.rl-sec-head h2::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:2px;background:var(--rl-primary);
}
.rl-sec-head p{margin-top:14px;color:var(--rl-muted);font-size:16px;line-height:1.8}
.rl-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:1.4px;color:var(--rl-primary);
  text-transform:uppercase;margin-bottom:14px;
}
.rl-eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--rl-primary)}

.rl-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.3px;
  border:1.5px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.rl-btn i{font-size:13px}
.rl-btn--primary{background:var(--rl-primary);color:#fff;box-shadow:var(--shadow-md)}
.rl-btn--primary:hover{background:var(--rl-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-lg)}
.rl-btn--ghost{background:transparent;color:var(--rl-primary);border-color:var(--rl-primary)}
.rl-btn--ghost:hover{background:var(--rl-primary-a08);color:var(--rl-primary-dark);transform:translateY(-1px)}
.rl-btn--small{height:40px;padding:0 18px;font-size:14px}
.rl-btn--block{width:100%}

.rl-badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--radius-pill);
  font-size:12.5px;font-weight:600;letter-spacing:.2px;
  background:var(--rl-primary-a08);color:var(--rl-primary);
}
.rl-badge--time{background:#EEF2F7;color:var(--rl-muted)}
.rl-badge--coral{background:var(--rl-coral);color:#fff}

/* ============================================================
   顶部导航
   ============================================================ */
.rl-header{
  position:sticky;top:0;z-index:60;
  background:var(--rl-dark);
  border-top:2px solid var(--rl-neon);
  box-shadow:0 6px 24px rgba(6,18,38,.35);
}
.rl-nav-wrap{display:flex;align-items:center;justify-content:space-between;height:68px;gap:24px}
.rl-logo{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.rl-logo-mark{
  width:38px;height:38px;border-radius:11px;
  background:linear-gradient(140deg,#1264D9,#0d4aa6);
  display:flex;align-items:center;justify-content:center;
  color:#35F2D6;font-size:17px;
  border:1px solid rgba(53,242,214,.45);
  box-shadow:0 0 0 1px rgba(53,242,214,.12);
}
.rl-logo-text{display:flex;flex-direction:column;line-height:1.15}
.rl-logo-main{color:var(--rl-dark-text);font-size:17px;font-weight:700;letter-spacing:.5px}
.rl-logo-sub{color:var(--rl-dark-muted);font-size:12px;letter-spacing:1px}
.rl-nav{display:flex;align-items:center;gap:6px;flex:1 1 auto;justify-content:center}
.rl-nav a{
  position:relative;display:inline-flex;align-items:center;height:68px;padding:0 16px;
  color:var(--rl-dark-nav);font-size:15px;font-weight:500;letter-spacing:.3px;
}
.rl-nav a::after{
  content:"";position:absolute;left:16px;right:16px;bottom:16px;height:2px;border-radius:2px;
  background:var(--rl-neon);opacity:0;transform:scaleX(.4);transform-origin:center;
  transition:opacity .2s ease,transform .2s ease,box-shadow .2s ease;
}
.rl-nav a:hover{color:#fff}
.rl-nav a:hover::after{opacity:.6;transform:scaleX(.6);box-shadow:0 0 6px rgba(53,242,214,.6)}
.rl-nav a.active{color:#fff;font-weight:600}
.rl-nav a.active::after{opacity:1;transform:scaleX(1);box-shadow:0 0 6px rgba(53,242,214,.75)}
.rl-nav-right{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.rl-btn--nav{
  height:42px;padding:0 20px;font-size:14px;
  background:var(--rl-primary);color:#fff;border:1px solid var(--rl-neon);border-radius:var(--radius-btn);
  box-shadow:0 0 0 1px rgba(53,242,214,.18);
}
.rl-btn--nav:hover{background:#1a72ec;color:#fff;transform:translateY(-1px)}
.rl-burger{
  display:none;width:44px;height:44px;border-radius:10px;
  background:rgba(255,255,255,.06);border:1px solid rgba(199,213,232,.25);color:#E7EEF8;
  align-items:center;justify-content:center;font-size:16px;
}
.rl-burger:hover{background:rgba(255,255,255,.12)}
.rl-drawer{
  position:fixed;top:0;right:0;bottom:0;width:280px;z-index:80;
  background:var(--rl-dark);border-left:1px solid rgba(53,242,214,.35);
  transform:translateX(100%);transition:transform .26s ease;
  padding:22px 20px;display:flex;flex-direction:column;gap:4px;overflow-y:auto;
}
.rl-drawer.open{transform:translateX(0)}
.rl-drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;padding-bottom:14px;border-bottom:1px solid rgba(53,242,214,.22)}
.rl-drawer-head span{color:var(--rl-dark-text);font-weight:700;font-size:15px}
.rl-drawer-close{width:36px;height:36px;border-radius:9px;background:rgba(255,255,255,.06);border:1px solid rgba(199,213,232,.25);color:#E7EEF8;display:flex;align-items:center;justify-content:center}
.rl-drawer a{display:flex;align-items:center;height:52px;padding:0 12px;color:var(--rl-dark-nav);font-size:15px;border-bottom:1px solid rgba(255,255,255,.06);border-radius:8px}
.rl-drawer a:hover,.rl-drawer a.active{color:#fff;background:rgba(53,242,214,.08)}
.rl-drawer .rl-btn{margin-top:16px}
.rl-mask{position:fixed;inset:0;background:rgba(6,14,28,.55);z-index:70;opacity:0;pointer-events:none;transition:opacity .26s ease}
.rl-mask.open{opacity:1;pointer-events:auto}

/* ============================================================
   倒计时条
   ============================================================ */
.rl-countbar{
  background:var(--rl-dark-2);
  border-bottom:1px solid rgba(53,242,214,.3);
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
}
.rl-countbar-inner{
  display:flex;align-items:center;gap:20px;height:48px;white-space:nowrap;min-width:520px;
}
.rl-count-label{
  display:inline-flex;align-items:center;gap:8px;color:#C7D5E8;font-size:13.5px;letter-spacing:.6px;
}
.rl-count-label i{color:var(--rl-neon);font-size:12px}
.rl-count-time{display:flex;align-items:center;gap:6px}
.rl-count-num{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:34px;height:26px;padding:0 6px;border-radius:7px;
  background:var(--rl-coral);color:#fff;font-size:14px;font-weight:700;
  font-variant-numeric:tabular-nums;
}
.rl-count-unit{color:#8fa4bf;font-size:12.5px;margin-right:4px}
.rl-count-divider{width:1px;height:20px;background:rgba(53,242,214,.4)}
.rl-count-link{margin-left:auto;color:var(--rl-neon);font-size:13.5px;display:inline-flex;align-items:center;gap:6px}
.rl-count-link:hover{color:#7ffbe4}
.rl-count-link i{font-size:11px;transition:transform .18s ease}
.rl-count-link:hover i{transform:translateX(3px)}

/* ============================================================
   Hero
   ============================================================ */
.rl-hero{padding:76px 0 84px;background:linear-gradient(180deg,#FFFFFF 0%,var(--rl-bg) 100%)}
.rl-hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.rl-hero-copy h1{
  font-size:46px;font-weight:700;line-height:1.28;letter-spacing:-.4px;color:var(--rl-text);
}
.rl-hero-copy h1 em{font-style:normal;color:var(--rl-primary)}
.rl-hero-sub{margin-top:22px;color:var(--rl-muted);font-size:16.5px;line-height:1.9;max-width:540px}
.rl-hero-sub span{display:block}
.rl-hero-actions{margin-top:34px;display:flex;gap:14px;flex-wrap:wrap}
.rl-hero-points{
  margin-top:30px;display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  color:var(--rl-muted);font-size:13.5px;
}
.rl-hero-points li{display:inline-flex;align-items:center;gap:6px}
.rl-hero-points li i{color:var(--rl-primary);font-size:11px}
.rl-hero-points li+li::before{content:"·";margin-right:8px;color:#b8c5d6}
.rl-hero-visual{
  position:relative;border-radius:var(--radius-card);overflow:hidden;
  min-height:420px;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  box-shadow:var(--shadow-md);
}
.rl-hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(200deg,rgba(244,247,251,.22) 0%,rgba(228,238,250,.82) 100%);
}
.rl-hero-cover{
  position:absolute;left:30px;right:30px;bottom:30px;z-index:2;
  border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-lg);transform:rotate(-2deg);
  border:4px solid rgba(255,255,255,.9);
}
.rl-hero-cover img{width:100%;height:210px;object-fit:cover}
.rl-hero-cover-cap{
  position:absolute;left:14px;bottom:12px;
  background:rgba(11,18,32,.72);color:#fff;font-size:12.5px;
  padding:5px 12px;border-radius:var(--radius-pill);
  border:1px solid rgba(53,242,214,.4);
}
.rl-hero-stat{
  position:absolute;top:26px;left:26px;z-index:2;
  background:#fff;border-radius:12px;padding:12px 16px;box-shadow:var(--shadow-md);
  border:1px solid var(--rl-border);
}
.rl-hero-stat b{display:block;font-size:22px;font-weight:700;color:var(--rl-primary);font-variant-numeric:tabular-nums;line-height:1.2}
.rl-hero-stat span{font-size:12.5px;color:var(--rl-muted)}

/* ============================================================
   卖点：非对称栅格
   ============================================================ */
.rl-feature-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:24px;align-items:stretch}
.rl-card{
  background:var(--rl-card);border:1px solid var(--rl-border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);
  transition:box-shadow .22s ease,transform .22s ease,border-color .22s ease;
}
.rl-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);border-color:var(--rl-border-strong)}
.rl-feature-main{
  padding:34px 32px;display:flex;flex-direction:column;justify-content:space-between;gap:26px;
}
.rl-feature-main h3{font-size:23px;font-weight:700;line-height:1.4;margin-top:18px}
.rl-feature-main p{margin-top:12px;color:var(--rl-muted);font-size:15.5px;line-height:1.85}
.rl-ico{
  width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  color:var(--rl-primary);font-size:20px;background:var(--rl-primary-a08);border:1px solid var(--rl-primary-a16);
}
.rl-link-more{display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:600;color:var(--rl-primary)}
.rl-link-more i{font-size:11px;transition:transform .18s ease}
.rl-link-more:hover i{transform:translateX(4px)}
.rl-feature-quad{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.rl-feature-quad .rl-card{padding:24px 22px;display:flex;flex-direction:column;gap:12px}
.rl-feature-quad .rl-ico{width:42px;height:42px;font-size:16px;border-radius:12px}
.rl-feature-quad h4{font-size:17px;font-weight:600}
.rl-feature-quad p{color:var(--rl-muted);font-size:14.5px;line-height:1.8}

/* ============================================================
   图墙
   ============================================================ */
.rl-gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rl-gallery-col{display:flex;flex-direction:column;gap:24px}
.rl-tile{
  position:relative;border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-sm);border:1px solid var(--rl-border);
  transition:box-shadow .24s ease,transform .24s ease;
}
.rl-tile:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}
.rl-tile img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.rl-tile:hover img{transform:scale(1.03)}
.rl-tile::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,18,32,0) 42%,rgba(11,18,32,.76) 100%);
  transition:background .24s ease;
}
.rl-tile:hover::after{background:linear-gradient(180deg,rgba(11,18,32,.06) 30%,rgba(11,18,32,.86) 100%)}
.rl-tile-cap{position:absolute;left:18px;right:18px;bottom:16px;z-index:2;color:#fff}
.rl-tile-cap strong{display:block;font-size:16px;font-weight:600;line-height:1.5}
.rl-tile-cap span{display:block;margin-top:4px;font-size:12.5px;color:#c3d3e6}
.rl-tile-badge{
  position:absolute;left:16px;top:16px;z-index:2;
  background:rgba(255,255,255,.92);color:var(--rl-primary);
  font-size:12px;font-weight:600;padding:4px 11px;border-radius:var(--radius-pill);
}
.rl-tile--tall img{height:326px}
.rl-tile--mid img{height:238px}
.rl-tile--short img{height:196px}

/* ============================================================
   CTA 分区
   ============================================================ */
.rl-cta{
  background:var(--rl-soft);border-top:1px solid var(--rl-border);border-bottom:1px solid var(--rl-border);
  padding:64px 0;
}
.rl-cta-inner{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center}
.rl-cta h2{font-size:30px;font-weight:700;line-height:1.4}
.rl-cta p{margin-top:14px;color:var(--rl-muted);font-size:16px;line-height:1.85;max-width:640px}
.rl-cta-actions{display:flex;flex-direction:column;align-items:flex-end;gap:14px}
.rl-cta-actions .rl-btn-row{display:flex;gap:14px;flex-wrap:wrap;justify-content:flex-end}
.rl-cta-note{font-size:12.5px;color:#8593a6;text-align:right;line-height:1.7}

/* ============================================================
   FAQ
   ============================================================ */
.rl-faq-grid{display:grid;grid-template-columns:340px 1fr;gap:56px;align-items:start}
.rl-faq-aside{position:sticky;top:100px}
.rl-faq-aside h2{position:relative;padding-left:18px;font-size:30px;font-weight:700;line-height:1.35}
.rl-faq-aside h2::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:2px;background:var(--rl-primary)}
.rl-faq-aside p{margin-top:16px;color:var(--rl-muted);font-size:15px;line-height:1.85}
.rl-faq-aside .rl-link-more{margin-top:18px}
.rl-faq-list{display:flex;flex-direction:column;gap:12px}
.rl-faq-item{
  background:#fff;border:1px solid var(--rl-border);border-radius:14px;
  box-shadow:var(--shadow-sm);overflow:hidden;position:relative;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.rl-faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--rl-primary);
  opacity:0;transition:opacity .2s ease;
}
.rl-faq-item.open{box-shadow:var(--shadow-md);border-color:var(--rl-border-strong)}
.rl-faq-item.open::before{opacity:1}
.rl-faq-q{
  width:100%;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 22px;background:none;border:0;text-align:left;
  font-size:16px;font-weight:600;color:var(--rl-text);line-height:1.6;
}
.rl-faq-q:hover{color:var(--rl-primary)}
.rl-faq-ico{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;
  display:flex;align-items:center;justify-content:center;
  background:var(--rl-primary-a08);color:var(--rl-primary);font-size:13px;
  transition:transform .18s ease,background-color .18s ease,color .18s ease;
}
.rl-faq-item.open .rl-faq-ico{background:var(--rl-primary);color:#fff;transform:rotate(45deg)}
.rl-faq-a{max-height:0;overflow:hidden;transition:max-height .18s ease}
.rl-faq-a-inner{padding:0 22px 20px;color:var(--rl-muted);font-size:15px;line-height:1.85}

/* ============================================================
   最新信息
   ============================================================ */
.rl-post-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:28px;align-items:start}
.rl-post-feature{
  background:#fff;border:1px solid var(--rl-border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);overflow:hidden;
  transition:box-shadow .22s ease,transform .22s ease;
}
.rl-post-feature:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}
.rl-post-feature .rl-post-cover{width:100%;height:250px;object-fit:cover}
.rl-post-body{padding:26px 28px 28px}
.rl-post-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.rl-post-body h3{margin-top:14px;font-size:22px;font-weight:700;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rl-post-body h3 a{color:var(--rl-text)}
.rl-post-body h3 a:hover{color:var(--rl-primary)}
.rl-post-body p{margin-top:12px;color:var(--rl-muted);font-size:15px;line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rl-post-time{margin-top:16px;display:flex;align-items:center;gap:8px;color:#8593a6;font-size:13px}
.rl-post-mini{display:flex;flex-direction:column;gap:14px}
.rl-post-mini-item{
  display:block;background:#fff;border:1px solid var(--rl-border);border-radius:14px;
  padding:18px 20px;box-shadow:var(--shadow-sm);
  transition:box-shadow .2s ease,transform .2s ease,background-color .2s ease,border-color .2s ease;
}
.rl-post-mini-item:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);background:#fbfcfe;border-color:var(--rl-border-strong)}
.rl-post-mini-item h4{
  font-size:16px;font-weight:600;color:var(--rl-text);line-height:1.6;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rl-post-mini-item:hover h4{color:var(--rl-primary)}
.rl-post-mini-foot{margin-top:10px;display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:12.5px;color:#8593a6}
.rl-empty{
  grid-column:1 / -1;text-align:center;padding:60px 24px;background:#fff;
  border:1px solid var(--rl-border);border-radius:var(--radius-card);box-shadow:var(--shadow-sm);
}
.rl-empty-ico{
  width:64px;height:64px;margin:0 auto 18px;border-radius:18px;
  display:flex;align-items:center;justify-content:center;
  background:var(--rl-primary-a08);color:var(--rl-primary);font-size:24px;
}
.rl-empty p{color:var(--rl-muted);font-size:15px;margin-bottom:20px}

/* ============================================================
   页脚
   ============================================================ */
.rl-footer{background:var(--rl-dark);border-top:2px solid var(--rl-neon);color:var(--rl-dark-text);padding:64px 0 0;margin-top:0}
.rl-footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.rl-footer h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px;letter-spacing:.4px}
.rl-footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.rl-footer-brand .rl-logo-mark{width:36px;height:36px}
.rl-footer-brand .rl-logo-main{font-size:16px}
.rl-footer-brand .rl-logo-sub{font-size:12px}
.rl-footer p{color:var(--rl-dark-muted);font-size:14px;line-height:1.85;max-width:320px}
.rl-footer ul{display:flex;flex-direction:column;gap:12px}
.rl-footer ul a{
  color:var(--rl-dark-muted);font-size:14.5px;display:inline-block;
  transition:color .18s ease,transform .18s ease;
}
.rl-footer ul a:hover{color:var(--rl-neon);transform:translateX(2px)}
.rl-footer-contact li{color:var(--rl-dark-muted);font-size:14.5px;line-height:1.8}
.rl-footer-contact strong{color:#fff;font-weight:600;display:block;font-size:13.5px;margin-bottom:2px}
.rl-footer-bottom{
  border-top:1px solid rgba(159,179,204,.18);padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  color:#7d8ea6;font-size:13px;
}
.rl-footer-bottom span{display:inline-flex;align-items:center;gap:8px}
.rl-to-top{
  position:fixed;right:24px;bottom:26px;z-index:50;
  width:46px;height:46px;border-radius:12px;border:1px solid rgba(53,242,214,.45);
  background:var(--rl-primary);color:#fff;font-size:16px;
  display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-lg);
  opacity:0;pointer-events:none;transform:translateY(10px);
  transition:opacity .24s ease,transform .24s ease,background-color .18s ease;
}
.rl-to-top.show{opacity:1;pointer-events:auto;transform:translateY(0)}
.rl-to-top:hover{background:var(--rl-primary-dark)}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width:1199px){
  :root{--sec-space:76px}
  .rl-container{padding:0 22px}
  .rl-hero-copy h1{font-size:40px}
  .rl-hero-grid{gap:36px}
  .rl-faq-grid{grid-template-columns:300px 1fr;gap:40px}
}
@media (max-width:1023px){
  :root{--sec-space:64px}
  .rl-nav{display:none}
  .rl-burger{display:flex}
  .rl-btn--nav{display:none}
  .rl-hero{padding:56px 0 64px}
  .rl-hero-grid{grid-template-columns:1fr;gap:40px}
  .rl-hero-copy h1{font-size:36px}
  .rl-hero-visual{min-height:340px}
  .rl-feature-grid{grid-template-columns:1fr}
  .rl-gallery{grid-template-columns:repeat(2,1fr)}
  .rl-gallery-col:last-child{display:none}
  .rl-post-grid{grid-template-columns:1fr}
  .rl-cta-inner{grid-template-columns:1fr;gap:26px}
  .rl-cta-actions{align-items:flex-start}
  .rl-cta-actions .rl-btn-row{justify-content:flex-start}
  .rl-cta-note{text-align:left}
  .rl-faq-grid{grid-template-columns:1fr;gap:32px}
  .rl-faq-aside{position:static}
  .rl-footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:767px){
  :root{--sec-space:48px}
  .rl-container{padding:0 18px}
  body{font-size:15.5px}
  .rl-nav-wrap{height:56px}
  .rl-logo-sub{font-size:11px}
  .rl-logo-main{font-size:15.5px}
  .rl-countbar-inner{height:44px;gap:14px}
  .rl-hero-copy h1{font-size:29px;line-height:1.35}
  .rl-hero-sub{font-size:15.5px;margin-top:16px}
  .rl-hero-actions{flex-direction:column;align-items:stretch}
  .rl-hero-actions .rl-btn{width:100%}
  .rl-hero-visual{min-height:290px}
  .rl-hero-cover{left:16px;right:16px;bottom:16px}
  .rl-hero-cover img{height:150px}
  .rl-hero-stat{top:16px;left:16px;padding:10px 13px}
  .rl-hero-stat b{font-size:18px}
  .rl-feature-quad{grid-template-columns:1fr}
  .rl-gallery{grid-template-columns:1fr}
  .rl-gallery-col{display:contents}
  .rl-tile--tall img,.rl-tile--mid img,.rl-tile--short img{height:220px}
  .rl-sec-head h2,.rl-faq-aside h2,.rl-cta h2{font-size:25px}
  .rl-post-feature .rl-post-cover{height:190px}
  .rl-post-body{padding:20px}
  .rl-post-body h3{font-size:19px}
  .rl-footer{padding-top:48px}
  .rl-footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:34px}
  .rl-footer-bottom{flex-direction:column;align-items:flex-start}
  .rl-to-top{right:16px;bottom:18px;width:42px;height:42px}
  .rl-btn{height:46px}
}
@media (max-width:575px){
  .rl-hero-copy h1{font-size:26px}
  .rl-sec-head h2,.rl-faq-aside h2,.rl-cta h2{font-size:22px}
  .rl-sec-head p,.rl-cta p{font-size:14.5px}
  .rl-feature-main{padding:26px 22px}
  .rl-feature-main h3{font-size:20px}
  .rl-faq-q{font-size:15px;padding:14px 18px}
  .rl-faq-a-inner{padding:0 18px 18px}
  .rl-badge{font-size:12px}
  .rl-drawer{width:260px}
}

/* roulang page: article */
:root{
  --rl-blue:#1264D9;
  --rl-blue-deep:#0F55BC;
  --rl-cyan:#35F2D6;
  --rl-coral:#FF7A45;
  --rl-bg:#F4F7FB;
  --rl-card:#FFFFFF;
  --rl-soft:#EAF0F8;
  --rl-border:#E3EAF3;
  --rl-ink:#1B2430;
  --rl-ink-2:#2A3542;
  --rl-muted:#5C6B7E;
  --rl-dark:#0B1220;
  --rl-dark-text:#E7EEF8;
  --rl-dark-muted:#9FB3CC;
  --rl-radius:16px;
  --rl-radius-sm:10px;
  --rl-radius-xs:12px;
  --rl-shadow-sm:0 1px 2px rgba(16,52,98,.06);
  --rl-shadow-md:0 6px 20px rgba(16,52,98,.08);
  --rl-shadow-lg:0 16px 40px rgba(16,52,98,.12);
  --rl-gutter:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--rl-ink);
  background:var(--rl-bg);
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--rl-blue);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--rl-blue-deep);}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
::selection{background:rgba(18,100,217,.16);}

/* Foundation 皮肤覆盖 */
.button,.button.primary,.button.secondary{
  background:var(--rl-blue);
  color:#FFFFFF;
  border-radius:var(--rl-radius-sm);
  border:1px solid transparent;
  box-shadow:var(--rl-shadow-md);
  font-weight:600;
  padding:0 22px;
  height:44px;
  line-height:42px;
}
.button:hover{background:var(--rl-blue-deep);color:#FFFFFF;}
.top-bar,.top-bar-left,.top-bar-right{background:transparent;border:0;}
.card{background:var(--rl-card);border:1px solid var(--rl-border);border-radius:var(--rl-radius);box-shadow:var(--rl-shadow-sm);}
.callout{border:1px solid var(--rl-border);border-left:4px solid var(--rl-blue);border-radius:var(--rl-radius-xs);background:var(--rl-soft);color:var(--rl-ink-2);}
.accordion{border:0;background:transparent;}
.accordion-item{border:1px solid var(--rl-border);border-radius:var(--rl-radius-xs);background:#fff;margin-bottom:12px;overflow:hidden;}
.accordion-title{border:0;font-weight:600;color:var(--rl-ink);font-size:16px;}
.accordion-content{border:0;background:#fff;color:var(--rl-muted);}
table{border-collapse:collapse;}

/* 容器 */
.rl-container{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--rl-gutter);}
.rl-main{display:block;}

/* 顶部深色导航 */
.rl-header{
  position:sticky;top:0;z-index:80;
  background:var(--rl-dark);
  border-bottom:1px solid rgba(53,242,214,.16);
}
.rl-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,rgba(53,242,214,0) 0%,rgba(53,242,214,.55) 50%,rgba(53,242,214,0) 100%);
}
.rl-nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px;}
.rl-logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.rl-logo:hover{color:#fff;}
.rl-logo-mark{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,#1264D9 0%,#0B1220 100%);
  border:1px solid rgba(53,242,214,.45);
  color:var(--rl-cyan);font-size:15px;flex-shrink:0;
}
.rl-logo-text{display:flex;flex-direction:column;line-height:1.2;}
.rl-logo-main{color:var(--rl-dark-text);font-size:17px;font-weight:700;letter-spacing:.5px;}
.rl-logo-sub{color:var(--rl-dark-muted);font-size:12px;letter-spacing:1px;}
.rl-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.rl-nav a{
  position:relative;display:inline-block;padding:10px 15px;border-radius:8px;
  color:#C7D5E8;font-size:15px;font-weight:500;white-space:nowrap;
}
.rl-nav a::after{
  content:"";position:absolute;left:15px;right:15px;bottom:3px;height:2px;border-radius:2px;
  background:var(--rl-cyan);transform:scaleX(0);transform-origin:center;transition:transform .22s ease;
}
.rl-nav a:hover{color:#FFFFFF;}
.rl-nav a:hover::after{transform:scaleX(.6);}
.rl-nav a.active{color:#FFFFFF;}
.rl-nav a.active::after{transform:scaleX(1);box-shadow:0 0 6px rgba(53,242,214,.85);}
.rl-nav-right{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.rl-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--rl-radius-sm);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,background .18s ease,box-shadow .18s ease,color .18s ease,border-color .18s ease;
}
.rl-btn:focus-visible{outline:3px solid rgba(53,242,214,.9);outline-offset:2px;}
.rl-btn--primary{background:var(--rl-blue);color:#FFFFFF;box-shadow:var(--rl-shadow-md);}
.rl-btn--primary:hover{background:var(--rl-blue-deep);color:#FFFFFF;transform:translateY(-1px);box-shadow:var(--rl-shadow-lg);}
.rl-btn--ghost{background:transparent;color:var(--rl-blue);border:1.5px solid var(--rl-blue);}
.rl-btn--ghost:hover{background:rgba(18,100,217,.06);color:var(--rl-blue-deep);transform:translateY(-1px);}
.rl-btn--nav{height:40px;padding:0 18px;font-size:14px;background:var(--rl-blue);color:#FFFFFF;border:1px solid rgba(53,242,214,.7);box-shadow:0 4px 14px rgba(18,100,217,.35);}
.rl-btn--nav:hover{background:#1B74EE;color:#FFFFFF;transform:translateY(-1px);}
.rl-btn--block{width:100%;}
.rl-burger{
  display:none;width:44px;height:44px;border-radius:10px;
  background:rgba(255,255,255,.05);border:1px solid rgba(53,242,214,.35);
  color:var(--rl-dark-text);font-size:17px;cursor:pointer;align-items:center;justify-content:center;
}
.rl-burger:hover{background:rgba(53,242,214,.12);}

/* 移动端抽屉 */
.rl-drawer{
  position:fixed;top:0;right:0;width:290px;max-width:86vw;height:100%;z-index:120;
  background:var(--rl-dark);border-left:1px solid rgba(53,242,214,.22);
  transform:translateX(105%);transition:transform .28s ease;
  padding:22px 20px;display:flex;flex-direction:column;gap:6px;overflow-y:auto;
}
.rl-drawer.is-open{transform:translateX(0);}
.rl-drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;margin-bottom:8px;border-bottom:1px solid rgba(53,242,214,.2);}
.rl-drawer-title{color:var(--rl-dark-text);font-size:15px;font-weight:600;letter-spacing:.5px;}
.rl-drawer-close{width:36px;height:36px;border-radius:9px;background:transparent;border:1px solid rgba(53,242,214,.35);color:var(--rl-dark-text);cursor:pointer;}
.rl-drawer a{
  display:block;height:52px;line-height:52px;padding:0 14px;border-radius:10px;
  color:#C7D5E8;font-size:15px;border-bottom:1px solid rgba(159,179,204,.12);
}
.rl-drawer a.active,.rl-drawer a:hover{color:#FFFFFF;background:rgba(53,242,214,.08);}
.rl-drawer .rl-btn{height:44px;line-height:1;margin-top:18px;}
.rl-overlay{
  position:fixed;inset:0;background:rgba(11,18,32,.55);z-index:110;
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
}
.rl-overlay.is-open{opacity:1;visibility:visible;}

/* 面包屑 */
.rl-crumb{padding:20px 0 0;font-size:13px;color:var(--rl-muted);display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.rl-crumb a{color:var(--rl-muted);}
.rl-crumb a:hover{color:var(--rl-blue);}
.rl-crumb-sep{color:#B6C3D4;}
.rl-crumb-current{color:var(--rl-blue);font-weight:600;max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* 文章头部 */
.rl-article-head{padding:22px 0 34px;border-bottom:1px solid var(--rl-border);}
.rl-article-title{
  font-size:clamp(24px,3vw,34px);
  line-height:1.35;font-weight:700;color:var(--rl-ink);
  margin:14px 0 18px;max-width:900px;
  overflow-wrap:break-word;word-break:break-word;
}
.rl-badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;line-height:1;
}
.rl-badge--cat{background:rgba(18,100,217,.08);color:var(--rl-blue);}
.rl-badge--soft{background:#EDF1F7;color:var(--rl-muted);}
.rl-badge--limit{background:var(--rl-coral);color:#FFFFFF;}
.rl-article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;color:var(--rl-muted);font-size:13.5px;}
.rl-article-meta span{display:inline-flex;align-items:center;gap:6px;}
.rl-article-meta i{color:#9AAABD;}
.rl-meta-dot{width:4px;height:4px;border-radius:50%;background:#C6D2E0;display:inline-block;}

/* 正文阅读区 */
.rl-article-wrap{padding:44px 0 0;}
.rl-article-body{
  max-width:780px;margin:0 auto;background:var(--rl-card);
  border:1px solid var(--rl-border);border-radius:var(--rl-radius);
  box-shadow:var(--rl-shadow-md);padding:48px;
  color:var(--rl-ink-2);font-size:16px;overflow-wrap:break-word;word-break:break-word;
}
.rl-article-body>*:first-child{margin-top:0;}
.rl-article-body p{margin:0 0 18px;line-height:1.9;}
.rl-article-body h2{
  position:relative;font-size:23px;font-weight:700;color:var(--rl-ink);
  line-height:1.45;margin:40px 0 16px;padding-left:16px;
}
.rl-article-body h2::before{
  content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;border-radius:2px;background:var(--rl-blue);
}
.rl-article-body h3{font-size:19px;font-weight:600;color:var(--rl-blue);margin:28px 0 12px;line-height:1.5;}
.rl-article-body h4{font-size:17px;font-weight:600;color:var(--rl-ink);margin:22px 0 10px;}
.rl-article-body a{color:var(--rl-blue);text-decoration:underline;text-underline-offset:3px;}
.rl-article-body a:hover{color:var(--rl-blue-deep);}
.rl-article-body strong{color:var(--rl-ink);font-weight:600;}
.rl-article-body blockquote{
  margin:24px 0;padding:18px 22px;background:var(--rl-soft);
  border-left:4px solid var(--rl-blue);border-radius:0 var(--rl-radius-xs) var(--rl-radius-xs) 0;
  font-style:italic;color:#33455A;
}
.rl-article-body blockquote p:last-child{margin-bottom:0;}
.rl-article-body img{
  max-width:100%;height:auto;border-radius:var(--rl-radius-xs);
  box-shadow:var(--rl-shadow-md);margin:24px auto;
}
.rl-article-body figure{margin:26px 0;}
.rl-article-body figcaption{text-align:center;font-size:13px;color:var(--rl-muted);margin-top:10px;}
.rl-article-body ul,.rl-article-body ol{margin:0 0 20px;}
.rl-article-body ul li,.rl-article-body ol li{position:relative;padding-left:24px;margin-bottom:10px;line-height:1.85;}
.rl-article-body ul li::before{
  content:"";position:absolute;left:3px;top:11px;width:7px;height:7px;border-radius:50%;background:var(--rl-blue);
}
.rl-article-body ol{counter-reset:rl-num;}
.rl-article-body ol li{counter-increment:rl-num;}
.rl-article-body ol li::before{
  content:counter(rl-num);
  position:absolute;left:0;top:4px;width:18px;height:18px;border-radius:50%;
  background:rgba(18,100,217,.1);color:var(--rl-blue);
  font-size:12px;font-weight:700;line-height:18px;text-align:center;
  font-variant-numeric:tabular-nums;
}
.rl-article-body hr{border:0;border-top:1px solid var(--rl-border);margin:34px 0;}
.rl-article-body table{
  width:100%;margin:24px 0;font-size:15px;background:#FBFCFE;
  border:1px solid var(--rl-border);border-radius:var(--rl-radius-xs);overflow:hidden;
}
.rl-article-body th,.rl-article-body td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--rl-border);}
.rl-article-body th{background:var(--rl-soft);font-weight:600;color:var(--rl-ink);}
.rl-article-body tr:last-child td{border-bottom:0;}
.rl-article-body pre{
  background:#F5F8FC;border:1px solid var(--rl-border);border-radius:var(--rl-radius-xs);
  padding:16px 18px;overflow-x:auto;margin:22px 0;font-size:14px;line-height:1.7;
}
.rl-article-body code{
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  font-size:14px;background:#F1F5FA;border-radius:6px;padding:2px 6px;color:#1F4E8C;
}
.rl-article-body pre code{background:transparent;padding:0;}

/* 空状态 */
.rl-empty{
  max-width:780px;margin:0 auto;background:var(--rl-card);
  border:1px dashed #CBD8E8;border-radius:var(--rl-radius);
  box-shadow:var(--rl-shadow-sm);padding:64px 32px;text-align:center;
}
.rl-empty-icon{
  width:70px;height:70px;margin:0 auto 20px;border-radius:20px;display:grid;place-items:center;
  background:var(--rl-soft);color:var(--rl-blue);font-size:26px;
}
.rl-empty h2{font-size:21px;font-weight:700;margin-bottom:10px;color:var(--rl-ink);}
.rl-empty p{color:var(--rl-muted);font-size:15px;margin-bottom:24px;}

/* 文末 */
.rl-article-foot{
  max-width:780px;margin:28px auto 0;display:flex;flex-wrap:wrap;
  align-items:center;justify-content:space-between;gap:18px;
}
.rl-tags{display:flex;flex-wrap:wrap;gap:10px;}
.rl-tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  background:#FFFFFF;border:1px solid var(--rl-border);color:var(--rl-muted);font-size:13px;
  transition:color .18s ease,border-color .18s ease,background .18s ease;
}
.rl-tag:hover{color:var(--rl-blue);border-color:rgba(18,100,217,.4);background:rgba(18,100,217,.05);}

/* 板块 */
.rl-section{padding:88px 0;}
.rl-section--tight{padding:64px 0 88px;}
.rl-section--soft{background:var(--rl-soft);}
.rl-section-head{max-width:720px;margin-bottom:36px;}
.rl-section-head h2{
  position:relative;font-size:clamp(22px,2.4vw,30px);font-weight:700;
  color:var(--rl-ink);line-height:1.4;padding-left:16px;margin-bottom:12px;
}
.rl-section-head h2::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:2px;background:var(--rl-blue);
}
.rl-section-head p{color:var(--rl-muted);font-size:15.5px;line-height:1.8;}

/* 卡片网格 */
.rl-grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.rl-card{
  display:flex;flex-direction:column;background:var(--rl-card);
  border:1px solid var(--rl-border);border-radius:var(--rl-radius);
  box-shadow:var(--rl-shadow-sm);overflow:hidden;
  transition:transform .22s ease,box-shadow .22s ease;
}
.rl-card:hover{transform:translateY(-2px);box-shadow:var(--rl-shadow-md);}
.rl-card-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--rl-soft);}
.rl-card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.rl-card:hover .rl-card-cover img{transform:scale(1.04);}
.rl-card-cover::after{
  content:"";position:absolute;inset:auto 0 0 0;height:52%;
  background:linear-gradient(180deg,rgba(11,18,32,0) 0%,rgba(11,18,32,.55) 100%);
  pointer-events:none;
}
.rl-card-cat{
  position:absolute;left:14px;top:14px;z-index:2;
  display:inline-flex;align-items:center;height:24px;padding:0 11px;border-radius:999px;
  background:rgba(255,255,255,.92);color:var(--rl-blue);font-size:12px;font-weight:600;
}
.rl-card-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1;}
.rl-card-body h3{font-size:17.5px;font-weight:600;line-height:1.55;margin-bottom:10px;}
.rl-card-body h3 a{color:var(--rl-ink);}
.rl-card-body h3 a:hover{color:var(--rl-blue);}
.rl-card-body p{
  color:var(--rl-muted);font-size:14.5px;line-height:1.75;margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rl-card-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  gap:12px;padding-top:14px;border-top:1px solid var(--rl-border);
  color:var(--rl-muted);font-size:13px;
}

/* CTA 区 */
.rl-cta-wrap{
  background:var(--rl-soft);border-radius:var(--rl-radius);
  border:1px solid var(--rl-border);
  padding:36px 40px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.rl-cta-wrap h2{font-size:23px;font-weight:700;color:var(--rl-ink);margin-bottom:10px;line-height:1.45;}
.rl-cta-wrap p{color:var(--rl-muted);font-size:15px;max-width:62ch;line-height:1.8;}
.rl-cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.rl-cta-note{margin-top:16px;color:#8395AA;font-size:12.5px;}

/* 页脚 */
.rl-footer{background:var(--rl-dark);position:relative;padding:64px 0 0;margin-top:0;}
.rl-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,rgba(53,242,214,0) 0%,rgba(53,242,214,.55) 50%,rgba(53,242,214,0) 100%);
}
.rl-footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;}
.rl-footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.rl-footer h4{font-size:15px;font-weight:600;color:#FFFFFF;margin-bottom:16px;letter-spacing:.3px;}
.rl-footer p{color:var(--rl-dark-muted);font-size:14px;line-height:1.85;max-width:38ch;}
.rl-footer ul li{margin-bottom:10px;}
.rl-footer ul li a{color:var(--rl-dark-muted);font-size:14px;display:inline-block;transition:color .18s ease,transform .18s ease;}
.rl-footer ul li a:hover{color:var(--rl-cyan);transform:translateX(2px);}
.rl-footer-contact li{color:var(--rl-dark-muted);font-size:14px;line-height:1.8;}
.rl-footer-contact strong{color:#D5E2F2;font-weight:600;margin-right:8px;}
.rl-footer-bottom{
  margin-top:48px;border-top:1px solid rgba(159,179,204,.18);
  padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  color:#7E91A8;font-size:13px;
}

/* 返回顶部 */
.rl-top{
  position:fixed;right:24px;bottom:28px;z-index:70;
  width:46px;height:46px;border-radius:12px;border:0;
  background:var(--rl-blue);color:#FFFFFF;font-size:16px;cursor:pointer;
  box-shadow:var(--rl-shadow-lg);opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease,transform .2s ease;
}
.rl-top.is-show{opacity:1;visibility:visible;}
.rl-top:hover{background:var(--rl-blue-deep);transform:translateY(-2px);}
.rl-top:focus-visible{outline:3px solid rgba(53,242,214,.9);outline-offset:2px;}

/* 响应式 */
@media (max-width:1199px){
  .rl-section{padding:76px 0;}
  .rl-article-body{padding:40px;}
}
@media (max-width:1023px){
  .rl-nav{display:none;}
  .rl-burger{display:inline-flex;}
  .rl-nav-wrap{height:64px;}
  .rl-btn--nav{display:none;}
  .rl-grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .rl-footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px;}
  .rl-section{padding:64px 0;}
  .rl-cta-wrap{padding:30px 28px;}
}
@media (max-width:767px){
  :root{--rl-gutter:18px;}
  body{font-size:15.5px;}
  .rl-nav-wrap{height:56px;}
  .rl-logo-mark{width:34px;height:34px;font-size:13px;}
  .rl-logo-main{font-size:15.5px;}
  .rl-logo-sub{font-size:11px;}
  .rl-article-head{padding:18px 0 26px;}
  .rl-article-title{margin:12px 0 14px;}
  .rl-article-body{padding:22px 18px;border-radius:14px;}
  .rl-article-body h2{font-size:20px;margin:32px 0 14px;}
  .rl-article-body h3{font-size:17.5px;}
  .rl-article-body p{line-height:1.85;}
  .rl-grid-3{grid-template-columns:1fr;gap:18px;}
  .rl-section{padding:48px 0;}
  .rl-section--tight{padding:40px 0 48px;}
  .rl-section-head{margin-bottom:26px;}
  .rl-cta-wrap{padding:24px 20px;flex-direction:column;align-items:flex-start;}
  .rl-cta-actions{width:100%;}
  .rl-cta-actions .rl-btn{flex:1 1 100%;}
  .rl-footer-grid{grid-template-columns:1fr;gap:26px;}
  .rl-footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .rl-article-foot{flex-direction:column;align-items:flex-start;}
  .rl-top{right:16px;bottom:18px;}
  .rl-drawer a{height:50px;line-height:50px;}
}
@media (max-width:575px){
  .rl-article-title{font-size:23px;}
  .rl-section-head h2{font-size:21px;padding-left:13px;}
  .rl-cta-wrap h2{font-size:20px;}
  .rl-btn{height:42px;font-size:14.5px;padding:0 18px;}
  .rl-card-body{padding:18px 18px 20px;}
  .rl-empty{padding:44px 20px;}
}

/* roulang page: category1 */
:root{
  --rl-primary:#1264D9;
  --rl-primary-dark:#0F55BB;
  --rl-primary-soft:rgba(18,100,217,.08);
  --rl-primary-line:rgba(18,100,217,.14);
  --rl-neon:#35F2D6;
  --rl-coral:#FF7A45;
  --rl-bg:#F4F7FB;
  --rl-card:#FFFFFF;
  --rl-soft:#EAF0F8;
  --rl-border:#E3EAF3;
  --rl-text:#1B2430;
  --rl-muted:#5C6B7E;
  --rl-dark:#0B1220;
  --rl-dark-2:#101B2E;
  --rl-dark-text:#E7EEF8;
  --rl-dark-muted:#9FB3CC;
  --rl-r-card:16px;
  --rl-r-btn:10px;
  --rl-r-img:12px;
  --rl-r-pill:999px;
  --rl-s-sm:0 1px 2px rgba(16,52,98,.06);
  --rl-s-md:0 6px 20px rgba(16,52,98,.08);
  --rl-s-lg:0 16px 40px rgba(16,52,98,.12);
  --rl-max:1200px;
  --rl-gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;padding:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",Arial,sans-serif;
  font-size:16px;line-height:1.75;font-weight:400;
  color:var(--rl-text);background:var(--rl-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--rl-primary);text-decoration:none;transition:color .18s ease,background-color .18s ease,transform .18s ease;}
a:hover{color:var(--rl-primary-dark);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,h5{margin:0;font-weight:700;line-height:1.35;color:var(--rl-text);}
p{margin:0;}
button{font-family:inherit;cursor:pointer;}
input,textarea,select{font-family:inherit;font-size:16px;}
:focus-visible{outline:3px solid var(--rl-neon);outline-offset:2px;}
.rl-container{width:100%;max-width:var(--rl-max);margin:0 auto;padding:0 24px;}
.rl-num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}
.rl-topline{height:2px;background:linear-gradient(90deg,var(--rl-neon),rgba(53,242,214,.15));}

/* ---------- header ---------- */
.rl-header{position:sticky;top:0;z-index:50;background:var(--rl-dark);border-bottom:1px solid rgba(53,242,214,.16);}
.rl-nav-wrap{display:flex;align-items:center;justify-content:space-between;min-height:68px;gap:20px;}
.rl-logo{display:flex;align-items:center;gap:10px;color:var(--rl-dark-text);}
.rl-logo:hover{color:#fff;}
.rl-logo-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(18,100,217,.22);border:1px solid rgba(53,242,214,.45);
  color:var(--rl-neon);font-size:16px;
}
.rl-logo-text{display:flex;flex-direction:column;line-height:1.1;}
.rl-logo-main{font-size:17px;font-weight:700;letter-spacing:.5px;color:var(--rl-dark-text);}
.rl-logo-sub{font-size:12px;letter-spacing:1px;color:var(--rl-dark-muted);margin-top:3px;}
.rl-nav{display:flex;align-items:center;gap:6px;}
.rl-nav a{
  position:relative;display:inline-block;padding:22px 14px;font-size:15px;color:#C7D5E8;
  transition:color .18s ease;
}
.rl-nav a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:12px;height:2px;border-radius:2px;
  background:var(--rl-neon);transform:scaleX(0);transform-origin:left;opacity:0;
  transition:transform .2s ease,opacity .2s ease;box-shadow:0 0 6px rgba(53,242,214,.7);
}
.rl-nav a:hover{color:#fff;}
.rl-nav a:hover::after{transform:scaleX(.6);opacity:.7;}
.rl-nav a.active{color:#fff;}
.rl-nav a.active::after{transform:scaleX(1);opacity:1;}
.rl-nav-right{display:flex;align-items:center;gap:12px;}
.rl-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:0 20px;height:44px;border-radius:var(--rl-r-btn);border:0;
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:background-color .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.rl-btn--primary{background:var(--rl-primary);color:#fff;box-shadow:var(--rl-s-md);}
.rl-btn--primary:hover{background:var(--rl-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--rl-s-lg);}
.rl-btn--ghost{background:transparent;color:var(--rl-primary);border:1.5px solid var(--rl-primary);}
.rl-btn--ghost:hover{background:rgba(18,100,217,.06);color:var(--rl-primary-dark);border-color:var(--rl-primary-dark);}
.rl-btn--nav{background:var(--rl-primary);color:#fff;border:1px solid var(--rl-neon);height:40px;padding:0 18px;font-size:14px;box-shadow:0 0 0 0 rgba(53,242,214,0);}
.rl-btn--nav:hover{background:var(--rl-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 0 0 3px rgba(53,242,214,.16);}
.rl-btn--block{width:100%;}
.rl-burger{
  display:none;width:44px;height:44px;border-radius:10px;
  background:rgba(255,255,255,.06);border:1px solid rgba(53,242,214,.35);
  color:var(--rl-dark-text);font-size:17px;align-items:center;justify-content:center;
}
.rl-burger:hover{background:rgba(53,242,214,.12);}
.rl-drawer{
  position:fixed;top:0;right:0;z-index:70;width:280px;max-width:84vw;height:100%;
  background:var(--rl-dark);border-left:1px solid rgba(53,242,214,.35);
  transform:translateX(100%);transition:transform .26s ease;padding:22px 20px;
  display:flex;flex-direction:column;gap:6px;
}
.rl-drawer.open{transform:translateX(0);}
.rl-drawer h4{color:var(--rl-dark-text);font-size:14px;letter-spacing:1px;margin-bottom:8px;}
.rl-drawer a{
  display:flex;align-items:center;height:52px;padding:0 14px;border-radius:10px;
  color:#C7D5E8;font-size:15px;border-bottom:1px solid rgba(53,242,214,.12);
}
.rl-drawer a:hover{color:#fff;background:rgba(53,242,214,.08);}
.rl-drawer a.active{color:#fff;background:rgba(18,100,217,.28);}
.rl-mask{position:fixed;inset:0;background:rgba(8,14,26,.55);z-index:65;opacity:0;pointer-events:none;transition:opacity .26s ease;}
.rl-mask.show{opacity:1;pointer-events:auto;}

/* ---------- banner ---------- */
.rl-banner{
  position:relative;min-height:240px;display:flex;align-items:center;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
}
.rl-banner::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(18,100,217,.92) 0%,rgba(18,100,217,.72) 48%,rgba(11,18,32,.68) 100%);
}
.rl-banner-inner{position:relative;z-index:2;padding:44px 0;}
.rl-kicker{
  display:inline-flex;align-items:center;gap:8px;
  height:28px;padding:0 14px;border-radius:var(--rl-r-pill);
  background:rgba(53,242,214,.16);border:1px solid rgba(53,242,214,.5);
  color:#EAFBF7;font-size:13px;font-weight:600;letter-spacing:.5px;margin-bottom:16px;
}
.rl-banner h1{
  color:#fff;font-size:42px;line-height:1.28;font-weight:700;max-width:820px;
  text-shadow:0 2px 12px rgba(8,20,40,.35);
}
.rl-banner p{color:rgba(238,245,255,.9);font-size:17px;margin-top:16px;max-width:720px;}

/* ---------- breadcrumb ---------- */
.rl-crumb-bar{background:#fff;border-bottom:1px solid var(--rl-border);}
.rl-crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--rl-muted);padding:14px 0;}
.rl-crumb a{color:var(--rl-muted);}
.rl-crumb a:hover{color:var(--rl-primary);}
.rl-crumb .sep{color:#C4D0DE;}
.rl-crumb .cur{color:var(--rl-primary);font-weight:600;}

/* ---------- layout ---------- */
.rl-main{padding:56px 0 0;}
.rl-layout{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:40px;align-items:start;}
.rl-article{min-width:0;}
.rl-lead{
  background:#fff;border:1px solid var(--rl-border);border-radius:var(--rl-r-card);
  box-shadow:var(--rl-s-sm);padding:26px 28px;border-left:4px solid var(--rl-primary);
}
.rl-lead p{color:#2A3646;font-size:16.5px;line-height:1.85;}
.rl-section{margin-top:44px;}
.rl-section-head{display:flex;align-items:flex-start;gap:14px;margin-bottom:22px;}
.rl-section-head h2{
  font-size:30px;line-height:1.35;position:relative;padding-left:16px;
}
.rl-section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;background:var(--rl-primary);
}
.rl-section-head p{color:var(--rl-muted);font-size:15px;margin-top:8px;padding-left:16px;}

.rl-point-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--rl-gap);}
.rl-point-card{
  background:#fff;border:1px solid var(--rl-border);border-radius:var(--rl-r-card);
  box-shadow:var(--rl-s-sm);padding:26px;transition:box-shadow .2s ease,transform .2s ease;
}
.rl-point-card:hover{box-shadow:var(--rl-s-md);transform:translateY(-2px);}
.rl-point-icon{
  width:46px;height:46px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:var(--rl-primary-soft);border:1px solid var(--rl-primary-line);
  color:var(--rl-primary);font-size:19px;margin-bottom:16px;
}
.rl-point-card h3{font-size:20px;line-height:1.4;}
.rl-point-card p{color:var(--rl-muted);font-size:15px;margin-top:10px;}

.rl-order{border-top:1px solid var(--rl-border);}
.rl-order li{
  display:flex;gap:16px;align-items:flex-start;
  padding:20px 18px;border-bottom:1px solid var(--rl-border);
  background:#fff;border-radius:0;transition:background-color .18s ease;
}
.rl-order li:hover{background:var(--rl-soft);}
.rl-order-num{
  flex:0 0 32px;width:32px;height:32px;border-radius:50%;
  background:var(--rl-primary);color:#fff;font-size:14px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.rl-order-body{min-width:0;}
.rl-order-body strong{display:block;font-size:16.5px;color:var(--rl-text);margin-bottom:4px;}
.rl-order-body span{color:var(--rl-muted);font-size:15px;}

/* ---------- aside ---------- */
.rl-aside{min-width:0;}
.rl-sticky{position:sticky;top:96px;}
.rl-aside-card{
  background:#fff;border:1px solid var(--rl-border);border-radius:var(--rl-r-card);
  box-shadow:var(--rl-s-md);padding:24px;
}
.rl-aside-card h3{font-size:15px;color:var(--rl-text);letter-spacing:.5px;margin-bottom:12px;}
.rl-anchor li + li{margin-top:6px;}
.rl-anchor a{
  display:flex;align-items:center;gap:8px;font-size:14.5px;color:var(--rl-muted);
  padding:7px 10px;border-radius:8px;border-left:2px solid transparent;
}
.rl-anchor a:hover,.rl-anchor a.active{color:var(--rl-primary);background:var(--rl-primary-soft);border-left-color:var(--rl-primary);}
.rl-aside-split{height:1px;background:var(--rl-border);margin:20px 0;}
.rl-link-list li + li{border-top:1px solid var(--rl-border);}
.rl-link-list a{display:flex;align-items:center;justify-content:space-between;font-size:14.5px;color:var(--rl-muted);padding:10px 2px;}
.rl-link-list a::after{content:"\f054";font-family:"Font Awesome 6 Free";font-weight:900;font-size:10px;color:#C4D0DE;}
.rl-link-list a:hover{color:var(--rl-primary);}
.rl-link-list a:hover::after{color:var(--rl-primary);}
.rl-aside-cta{margin-top:20px;}
.rl-aside-note{margin-top:14px;font-size:13px;color:var(--rl-muted);line-height:1.7;}

/* ---------- media block ---------- */
.rl-media{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:36px;align-items:center;
  background:#fff;border:1px solid var(--rl-border);border-radius:var(--rl-r-card);
  box-shadow:var(--rl-s-sm);padding:32px;margin-top:44px;
}
.rl-media-img{border-radius:var(--rl-r-img);overflow:hidden;box-shadow:var(--rl-s-md);}
.rl-media-img img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10;}
.rl-media h2{font-size:28px;padding-left:16px;position:relative;margin-bottom:14px;}
.rl-media h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;background:var(--rl-primary);}
.rl-media p{color:var(--rl-muted);font-size:15.5px;}
.rl-check{margin-top:18px;}
.rl-check li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:#33414F;padding:7px 0;}
.rl-check i{color:var(--rl-primary);font-size:13px;margin-top:7px;}
.rl-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
.rl-tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--rl-r-pill);
  background:var(--rl-primary-soft);color:var(--rl-primary);font-size:13px;font-weight:600;
}
.rl-tag--time{background:#EEF2F7;color:var(--rl-muted);}

/* ---------- faq ---------- */
.rl-faq{background:#fff;border:1px solid var(--rl-border);border-radius:var(--rl-r-card);box-shadow:var(--rl-s-sm);overflow:hidden;}
.rl-faq-item + .rl-faq-item{border-top:1px solid var(--rl-border);}
.rl-faq-q{
  width:100%;background:transparent;border:0;text-align:left;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:16px 22px;font-size:16px;font-weight:600;color:var(--rl-text);
  border-left:3px solid transparent;transition:background-color .18s ease,border-color .18s ease;
}
.rl-faq-q:hover{background:var(--rl-soft);}
.rl-faq-item.open .rl-faq-q{background:#F7FAFE;border-left-color:var(--rl-primary);color:var(--rl-primary);}
.rl-faq-ico{
  flex:0 0 26px;width:26px;height:26px;border-radius:8px;
  display:flex;align-items:center;justify-content:center;
  background:var(--rl-primary-soft);color:var(--rl-primary);font-size:12px;
  transition:transform .18s ease;
}
.rl-faq-item.open .rl-faq-ico{transform:rotate(180deg);}
.rl-faq-a{max-height:0;overflow:hidden;transition:max-height .18s ease;}
.rl-faq-a-inner{padding:0 22px 22px 22px;color:var(--rl-muted);font-size:15px;line-height:1.8;}
.rl-faq-item.open .rl-faq-a{max-height:420px;}

/* ---------- cta ---------- */
.rl-cta{
  margin-top:56px;background:var(--rl-soft);border:1px solid #DCE6F3;border-radius:var(--rl-r-card);
  padding:36px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.rl-cta h2{font-size:28px;}
.rl-cta p{color:var(--rl-muted);font-size:15.5px;margin-top:10px;max-width:640px;}
.rl-cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.rl-cta-fine{width:100%;font-size:12.5px;color:#7A8899;border-top:1px solid #DCE6F3;padding-top:16px;margin-top:4px;}

/* ---------- footer ---------- */
.rl-footer{background:var(--rl-dark);color:var(--rl-dark-muted);margin-top:72px;border-top:2px solid var(--rl-neon);}
.rl-footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;
  padding:56px 0 40px;
}
.rl-footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.rl-footer h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.5px;}
.rl-footer p{font-size:14px;line-height:1.85;color:var(--rl-dark-muted);max-width:360px;}
.rl-footer ul li + li{margin-top:10px;}
.rl-footer ul a{color:var(--rl-dark-muted);font-size:14.5px;display:inline-block;transition:color .18s ease,transform .18s ease;}
.rl-footer ul a:hover{color:var(--rl-neon);transform:translateX(2px);}
.rl-footer-contact li{font-size:14px;color:var(--rl-dark-muted);line-height:1.7;}
.rl-footer-contact strong{color:#fff;font-weight:600;margin-right:6px;}
.rl-footer-bottom{
  border-top:1px solid rgba(53,242,214,.16);
  padding:18px 0 26px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:#8FA4BE;
}
.rl-totop{
  position:fixed;right:22px;bottom:26px;z-index:40;
  width:46px;height:46px;border-radius:12px;border:0;
  background:var(--rl-primary);color:#fff;font-size:16px;box-shadow:var(--rl-s-lg);
  display:flex;align-items:center;justify-content:center;
  opacity:0;pointer-events:none;transition:opacity .22s ease,transform .22s ease,background-color .18s ease;
}
.rl-totop.show{opacity:1;pointer-events:auto;}
.rl-totop:hover{background:var(--rl-primary-dark);transform:translateY(-2px);}

/* ---------- responsive ---------- */
@media screen and (max-width:1199px){
  .rl-container{padding:0 20px;}
  .rl-layout{gap:32px;}
  .rl-banner h1{font-size:38px;}
  .rl-section-head h2{font-size:28px;}
}
@media screen and (max-width:1023px){
  .rl-nav{display:none;}
  .rl-burger{display:flex;}
  .rl-layout{grid-template-columns:minmax(0,1fr);gap:32px;}
  .rl-sticky{position:static;}
  .rl-aside-card{margin-top:0;}
  .rl-footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:44px 0 32px;}
  .rl-main{padding:40px 0 0;}
}
@media screen and (max-width:767px){
  .rl-nav-wrap{min-height:56px;}
  .rl-btn--nav{display:none;}
  .rl-banner{min-height:200px;}
  .rl-banner-inner{padding:32px 0;}
  .rl-banner h1{font-size:28px;}
  .rl-banner p{font-size:15.5px;}
  .rl-point-grid{grid-template-columns:minmax(0,1fr);}
  .rl-media{grid-template-columns:minmax(0,1fr);padding:22px;gap:22px;}
  .rl-media h2{font-size:24px;}
  .rl-section-head h2{font-size:24px;}
  .rl-cta{padding:26px;}
  .rl-cta h2{font-size:23px;}
  .rl-cta-actions{width:100%;}
  .rl-cta-actions .rl-btn{flex:1 1 160px;}
  .rl-lead{padding:22px;}
  .rl-footer-bottom{flex-direction:column;}
}
@media screen and (max-width:520px){
  .rl-container{padding:0 16px;}
  .rl-banner h1{font-size:25px;}
  .rl-banner p{font-size:15px;}
  .rl-logo-sub{display:none;}
  .rl-point-card{padding:20px;}
  .rl-point-card h3{font-size:18px;}
  .rl-order li{padding:16px 12px;}
  .rl-faq-q{padding:14px 16px;font-size:15px;}
  .rl-faq-a-inner{padding:0 16px 18px;}
  .rl-footer-grid{grid-template-columns:1fr;}
  .rl-totop{right:14px;bottom:16px;}
}
/* Foundation 默认皮肤覆盖 */
.button,.button.primary,.button.secondary{
  background:var(--rl-primary);color:#fff;border-radius:var(--rl-r-btn);border:0;
  font-family:inherit;font-weight:600;
}
.button:hover{background:var(--rl-primary-dark);color:#fff;}
.card,.callout{border-radius:var(--rl-r-card);border:1px solid var(--rl-border);background:#fff;box-shadow:var(--rl-s-sm);}
.accordion{border:0;background:transparent;}
.accordion-title{border:0;font-size:16px;}
.top-bar{background:var(--rl-dark);}

/* roulang page: category2 */
:root{
  --rl-blue:#1264D9;
  --rl-blue-dark:#0f55ba;
  --rl-cyan:#35F2D6;
  --rl-coral:#FF7A45;
  --rl-bg:#F4F7FB;
  --rl-card:#FFFFFF;
  --rl-soft:#EAF0F8;
  --rl-border:#E3EAF3;
  --rl-text:#1B2430;
  --rl-muted:#5C6B7E;
  --rl-dark:#0B1220;
  --rl-dark-text:#E7EEF8;
  --rl-dark-muted:#9FB3CC;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --sh-sm:0 1px 2px rgba(16,52,98,.06);
  --sh-md:0 6px 20px rgba(16,52,98,.08);
  --sh-lg:0 16px 40px rgba(16,52,98,.12);
  --sec:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--rl-text);
  background:var(--rl-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;letter-spacing:.2px}
p{margin:0}
button{font-family:inherit}
:focus-visible{outline:3px solid rgba(53,242,214,.9);outline-offset:2px;border-radius:6px}

.rl-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.rl-section{padding:var(--sec) 0}
.rl-section--tight{padding:56px 0 0}
.rl-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:1.4px;
  color:var(--rl-blue);text-transform:uppercase;
}
.rl-eyebrow i{font-size:12px}

/* ===== Foundation 默认皮肤覆盖 ===== */
.button,.rl-btn{
  border-radius:var(--r-btn)!important;
  background:var(--rl-blue);
  border:1px solid transparent;
  box-shadow:var(--sh-md);
  font-weight:600;
}
.button:hover,.button:focus{background:var(--rl-blue-dark)}
.card,.callout,.accordion,.accordion-item{
  border-radius:var(--r-card);
  border:1px solid var(--rl-border);
  background:var(--rl-card);
  box-shadow:none;
}
.top-bar,.top-bar-left,.top-bar-right{background:transparent}

/* ===== 顶部导航 ===== */
.rl-header{
  position:sticky;top:0;z-index:120;
  background:var(--rl-dark);
  border-bottom:1px solid rgba(53,242,214,.16);
  box-shadow:0 1px 0 rgba(53,242,214,.55) inset,0 8px 24px rgba(6,14,26,.28);
}
.rl-nav-wrap{
  display:flex;align-items:center;gap:28px;
  min-height:68px;
}
.rl-logo{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.rl-logo-mark{
  width:38px;height:38px;border-radius:11px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,#1264D9,#0d2b57);
  border:1px solid rgba(53,242,214,.55);
  color:var(--rl-dark-text);font-size:15px;
  box-shadow:0 0 0 1px rgba(53,242,214,.12),0 6px 16px rgba(18,100,217,.35);
}
.rl-logo-text{display:flex;flex-direction:column;line-height:1.15}
.rl-logo-main{font-size:16px;font-weight:700;color:var(--rl-dark-text);letter-spacing:.5px}
.rl-logo-sub{font-size:12px;color:var(--rl-dark-muted);letter-spacing:1px}
.rl-nav{display:flex;align-items:center;gap:26px;margin-left:auto}
.rl-nav a{
  position:relative;display:inline-block;
  padding:8px 2px 10px;
  color:#C7D5E8;font-size:15px;font-weight:500;
  transition:color .18s ease;
}
.rl-nav a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--rl-cyan);border-radius:2px;
  transition:width .22s ease;
}
.rl-nav a:hover{color:#FFFFFF}
.rl-nav a:hover::after{width:60%}
.rl-nav a.active{color:#FFFFFF}
.rl-nav a.active::after{width:100%;box-shadow:0 0 6px rgba(53,242,214,.85)}
.rl-nav-right{display:flex;align-items:center;gap:14px;margin-left:6px}

.rl-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;color:#fff;
  background:var(--rl-blue);border:1px solid transparent;
  box-shadow:var(--sh-md);cursor:pointer;
  transition:background .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.rl-btn:hover{background:var(--rl-blue-dark);transform:translateY(-1px);box-shadow:var(--sh-lg)}
.rl-btn:active{transform:translateY(0)}
.rl-btn--nav{padding:10px 18px;border:1px solid var(--rl-cyan);background:var(--rl-blue);font-size:14px}
.rl-btn--ghost{background:transparent;border:1.5px solid var(--rl-blue);color:var(--rl-blue);box-shadow:none}
.rl-btn--ghost:hover{background:rgba(18,100,217,.06);color:var(--rl-blue);transform:translateY(-1px);box-shadow:var(--sh-sm)}
.rl-btn--block{width:100%}
.rl-btn--sm{padding:9px 16px;font-size:14px}
.rl-btn--dark{background:var(--rl-cyan);color:var(--rl-dark);border-color:var(--rl-cyan)}
.rl-btn--dark:hover{background:#57f7e0;color:var(--rl-dark)}

.rl-burger{
  display:none;width:44px;height:44px;border-radius:12px;
  background:rgba(255,255,255,.06);border:1px solid rgba(53,242,214,.35);
  color:var(--rl-dark-text);font-size:17px;cursor:pointer;
  align-items:center;justify-content:center;
}
.rl-burger:hover{background:rgba(53,242,214,.14)}

/* ===== 分类横幅 ===== */
.rl-banner{
  position:relative;
  min-height:240px;
  display:flex;align-items:center;
  padding:40px 0;
  color:#fff;
  background:
    linear-gradient(100deg,rgba(11,18,32,.90) 0%,rgba(18,100,217,.70) 60%,rgba(18,100,217,.52) 100%),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  border-bottom:1px solid rgba(53,242,214,.35);
}
.rl-banner-inner{max-width:820px}
.rl-banner .rl-eyebrow{color:var(--rl-cyan)}
.rl-banner h1{
  font-size:clamp(26px,3.4vw,38px);
  font-weight:700;color:#fff;margin:12px 0 14px;line-height:1.35;
}
.rl-banner p{color:rgba(255,255,255,.86);font-size:16px;max-width:680px}
.rl-banner-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.rl-chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:var(--r-pill);
  font-size:13px;color:var(--rl-dark-text);
  background:rgba(255,255,255,.10);
  border:1px solid rgba(53,242,214,.42);
}
.rl-chip i{color:var(--rl-cyan);font-size:12px}
.rl-chip--coral{background:var(--rl-coral);border-color:var(--rl-coral);color:#fff}
.rl-chip--coral i{color:#fff}

/* ===== 面包屑 ===== */
.rl-crumb{padding:18px 0 0;font-size:13px;color:var(--rl-muted)}
.rl-crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.rl-crumb li::after{content:"›";margin-left:8px;color:#B4C1D2}
.rl-crumb li:last-child::after{content:"";margin:0}
.rl-crumb a{color:var(--rl-muted)}
.rl-crumb a:hover{color:var(--rl-blue)}
.rl-crumb .is-current{color:var(--rl-blue);font-weight:600}

/* ===== 两栏布局 ===== */
.rl-layout{
  display:grid;
  grid-template-columns:minmax(0,2fr) minmax(0,1fr);
  gap:32px;
  padding:26px 0 var(--sec);
  align-items:start;
}
.rl-main-col{display:flex;flex-direction:column;gap:32px;min-width:0}
.rl-side-col{min-width:0}

.rl-panel{
  background:var(--rl-card);
  border:1px solid var(--rl-border);
  border-radius:var(--r-card);
  box-shadow:var(--sh-sm);
  padding:30px 32px;
  transition:box-shadow .2s ease,transform .2s ease;
}
.rl-panel:hover{box-shadow:var(--sh-md)}
.rl-panel--plain{background:transparent;border:none;box-shadow:none;padding:0}
.rl-panel--plain:hover{box-shadow:none}

.rl-h2{
  position:relative;
  font-size:clamp(22px,2.3vw,28px);
  padding-left:16px;
  margin-bottom:12px;
}
.rl-h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;
  background:var(--rl-blue);border-radius:2px;
}
.rl-h3{font-size:20px;margin-bottom:8px}
.rl-sub{color:var(--rl-muted);font-size:15px}

.rl-lead{font-size:17px;color:#2A3543;line-height:1.85}
.rl-meta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.rl-stat{
  flex:1 1 140px;
  background:var(--rl-soft);
  border:1px solid #DCE6F3;
  border-radius:12px;
  padding:14px 16px;
}
.rl-stat strong{
  display:block;font-size:24px;font-weight:700;color:var(--rl-blue);
  font-variant-numeric:tabular-nums;line-height:1.2;
}
.rl-stat span{font-size:13px;color:var(--rl-muted)}

/* ===== 步骤流 ===== */
.rl-steps{position:relative;margin-top:26px}
.rl-steps::before{
  content:"";position:absolute;left:19px;top:22px;bottom:22px;width:2px;
  background:linear-gradient(180deg,rgba(18,100,217,.85),rgba(18,100,217,.16));
}
.rl-step{position:relative;padding-left:64px;margin-bottom:18px}
.rl-step:last-child{margin-bottom:0}
.rl-step-num{
  position:absolute;left:0;top:16px;
  width:40px;height:40px;border-radius:50%;
  display:grid;place-items:center;
  background:#fff;border:2px solid var(--rl-blue);
  color:var(--rl-blue);font-weight:700;font-size:15px;
  font-variant-numeric:tabular-nums;
  box-shadow:var(--sh-sm);
}
.rl-step-body{
  background:var(--rl-card);
  border:1px solid var(--rl-border);
  border-radius:14px;
  padding:20px 24px;
  box-shadow:var(--sh-sm);
  transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.rl-step-body:hover{box-shadow:var(--sh-md);transform:translateY(-2px);border-color:#CFDDF0}
.rl-step-body h3{font-size:19px;margin-bottom:8px}
.rl-step-body p{color:var(--rl-muted);font-size:15.5px}
.rl-step-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.rl-tag{
  display:inline-block;padding:4px 12px;border-radius:var(--r-pill);
  font-size:12.5px;background:rgba(18,100,217,.08);color:var(--rl-blue);
}
.rl-tag--grey{background:#EEF2F8;color:var(--rl-muted)}
.rl-tag--coral{background:var(--rl-coral);color:#fff}

/* ===== 图墙 ===== */
.rl-wall{
  display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:24px;
}
.rl-wall-item{
  position:relative;overflow:hidden;border-radius:var(--r-img);
  aspect-ratio:4/3;border:1px solid var(--rl-border);box-shadow:var(--sh-sm);
}
.rl-wall-item img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .45s ease}
.rl-wall-item::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,18,32,0) 38%,rgba(11,18,32,.78) 100%);
  transition:background .3s ease;
}
.rl-wall-item:hover img{transform:scale(1.03)}
.rl-wall-item:hover::after{background:linear-gradient(180deg,rgba(11,18,32,.12) 30%,rgba(11,18,32,.88) 100%)}
.rl-wall-badge{
  position:absolute;top:12px;left:12px;z-index:2;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;
  background:rgba(255,255,255,.94);color:var(--rl-blue);
}
.rl-wall-cap{
  position:absolute;left:14px;right:14px;bottom:12px;z-index:2;
  color:#fff;font-size:13.5px;line-height:1.5;
}

/* ===== 行式对照列表 ===== */
.rl-rows{margin-top:20px;border-top:1px solid var(--rl-border)}
.rl-row{
  display:flex;align-items:flex-start;gap:16px;
  padding:16px 8px;border-bottom:1px solid var(--rl-border);
  transition:background .18s ease;
}
.rl-row:hover{background:var(--rl-soft)}
.rl-row-num{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:grid;place-items:center;font-size:13px;font-weight:700;
  background:rgba(18,100,217,.10);color:var(--rl-blue);
  font-variant-numeric:tabular-nums;
}
.rl-row-body strong{display:block;font-size:15.5px;font-weight:600;margin-bottom:2px}
.rl-row-body span{font-size:14px;color:var(--rl-muted)}

/* ===== FAQ ===== */
.rl-faq{margin-top:20px;display:flex;flex-direction:column;gap:10px}
.rl-faq-item{
  background:var(--rl-card);border:1px solid var(--rl-border);
  border-left:3px solid transparent;border-radius:12px;
  box-shadow:var(--sh-sm);overflow:hidden;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.rl-faq-item:hover{box-shadow:var(--sh-md)}
.rl-faq-item.is-open{border-left-color:var(--rl-blue)}
.rl-faq-q{
  width:100%;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:12px 20px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--rl-text);
}
.rl-faq-q .rl-faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:grid;place-items:center;
  background:rgba(18,100,217,.08);color:var(--rl-blue);font-size:13px;
  transition:transform .18s ease,background .18s ease,color .18s ease;
}
.rl-faq-item.is-open .rl-faq-icon{background:var(--rl-blue);color:#fff;transform:rotate(180deg)}
.rl-faq-a{max-height:0;overflow:hidden;transition:max-height .18s ease}
.rl-faq-a-inner{padding:0 20px 18px;font-size:15px;line-height:1.8;color:var(--rl-muted)}

/* ===== CTA ===== */
.rl-cta{
  background:var(--rl-soft);border:1px solid #DCE6F3;
  border-radius:var(--r-card);
  padding:30px 32px;
  display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;
}
.rl-cta h3{font-size:22px;margin-bottom:6px}
.rl-cta p{color:var(--rl-muted);font-size:15px;max-width:560px}
.rl-cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.rl-cta-note{margin-top:14px;font-size:12.5px;color:#8C9AAB}

/* ===== 侧栏 ===== */
.rl-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.rl-side-card{
  background:var(--rl-card);border:1px solid var(--rl-border);
  border-radius:var(--r-card);box-shadow:var(--sh-sm);
  padding:22px 22px 24px;
}
.rl-side-card h4{font-size:15px;color:var(--rl-text);margin-bottom:14px}
.rl-anchor-nav{display:flex;flex-direction:column;gap:4px}
.rl-anchor-nav a{
  display:flex;align-items:center;gap:10px;
  padding:9px 12px;border-radius:10px;
  font-size:14.5px;color:var(--rl-muted);
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.rl-anchor-nav a i{font-size:11px;color:var(--rl-blue)}
.rl-anchor-nav a:hover{background:var(--rl-soft);color:var(--rl-blue);transform:translateX(2px)}
.rl-side-links{display:flex;flex-direction:column;gap:10px;margin-top:4px}
.rl-side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 14px;border:1px solid var(--rl-border);border-radius:10px;
  font-size:14px;color:var(--rl-text);
  transition:border-color .18s ease,background .18s ease,color .18s ease;
}
.rl-side-links a i{color:var(--rl-blue);font-size:12px}
.rl-side-links a:hover{border-color:var(--rl-blue);background:rgba(18,100,217,.04);color:var(--rl-blue)}
.rl-side-note{margin-top:12px;font-size:12.5px;color:#8C9AAB;line-height:1.7}
.rl-side-cta{margin-top:18px}
.rl-side-divider{height:1px;background:var(--rl-border);margin:20px 0}

/* ===== 页脚 ===== */
.rl-footer{
  background:var(--rl-dark);color:var(--rl-dark-muted);
  border-top:1px solid rgba(53,242,214,.55);
  padding:64px 0 0;font-size:14px;
}
.rl-footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:40px;
}
.rl-footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.rl-footer p{line-height:1.85;color:#9FB3CC;max-width:360px}
.rl-footer h4{font-size:15px;color:#FFFFFF;margin-bottom:16px}
.rl-footer ul{display:flex;flex-direction:column;gap:10px}
.rl-footer ul a{color:#9FB3CC;transition:color .18s ease,transform .18s ease;display:inline-block}
.rl-footer ul a:hover{color:var(--rl-cyan);transform:translateX(2px)}
.rl-footer-contact li{color:#9FB3CC;font-size:13.5px;line-height:1.7}
.rl-footer-contact strong{color:#E7EEF8;font-weight:600;margin-right:6px}
.rl-footer-bottom{
  border-top:1px solid rgba(159,179,204,.18);
  padding:18px 0 24px;
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:#8CA0B8;
}

/* ===== 回到顶部 ===== */
.rl-top{
  position:fixed;right:22px;bottom:22px;z-index:130;
  width:44px;height:44px;border-radius:var(--r-btn);border:0;
  background:var(--rl-blue);color:#fff;font-size:15px;cursor:pointer;
  box-shadow:var(--sh-lg);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease,background .2s ease;
}
.rl-top.is-show{opacity:1;visibility:visible;transform:translateY(0)}
.rl-top:hover{background:var(--rl-blue-dark)}

section[id]{scroll-margin-top:96px}

/* ===== 断点 ===== */
@media(max-width:1199px){
  .rl-container{padding:0 22px}
  .rl-layout{gap:26px}
  .rl-footer-grid{gap:30px}
}
@media(max-width:1023px){
  :root{--sec:64px}
  .rl-burger{display:inline-flex}
  .rl-nav{
    position:fixed;top:0;right:0;z-index:200;
    width:280px;max-width:86vw;height:100vh;
    flex-direction:column;align-items:stretch;gap:0;
    margin-left:0;padding:84px 20px 24px;
    background:var(--rl-dark);
    border-left:1px solid rgba(53,242,214,.35);
    box-shadow:-18px 0 40px rgba(6,14,26,.45);
    transform:translateX(105%);
    transition:transform .26s ease;
    overflow-y:auto;
  }
  .rl-nav.is-open{transform:translateX(0)}
  .rl-nav a{
    min-height:52px;display:flex;align-items:center;
    border-bottom:1px solid rgba(53,242,214,.16);
    padding:0 6px;font-size:15.5px;
  }
  .rl-nav a::after{display:none}
  .rl-nav a.active{color:#fff;box-shadow:inset 3px 0 0 var(--rl-cyan);padding-left:14px}
  .rl-layout{grid-template-columns:minmax(0,1fr);gap:28px}
  .rl-side{position:static}
  .rl-wall{grid-template-columns:repeat(2,1fr)}
  .rl-footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .rl-panel{padding:26px 24px}
}
@media(max-width:767px){
  :root{--sec:48px}
  .rl-nav-wrap{min-height:56px;gap:14px}
  .rl-logo-sub{display:none}
  .rl-btn--nav{display:none}
  .rl-banner{min-height:200px;padding:32px 0}
  .rl-banner p{font-size:15px}
  .rl-cta{padding:24px 20px}
  .rl-cta-actions{width:100%}
  .rl-cta-actions .rl-btn{flex:1 1 auto}
  .rl-footer{padding-top:48px}
  .rl-footer-grid{grid-template-columns:1fr;gap:26px}
  .rl-footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media(max-width:575px){
  body{font-size:15.5px}
  .rl-container{padding:0 16px}
  .rl-banner h1{font-size:26px}
  .rl-panel{padding:20px 18px}
  .rl-wall{grid-template-columns:1fr}
  .rl-step{padding-left:54px}
  .rl-step-num{width:34px;height:34px;font-size:14px}
  .rl-steps::before{left:16px}
  .rl-meta-row{gap:10px}
  .rl-stat{padding:12px 14px}
  .rl-stat strong{font-size:21px}
  .rl-btn{padding:11px 18px}
  .rl-btn--block,.rl-cta-actions .rl-btn{width:100%}
  .rl-crumb{font-size:12.5px}
}