/* roulang page: index */
:root{
  --c-brand-900:#0E2244;
  --c-brand-700:#17407F;
  --c-brand-600:#1F5BC4;
  --c-brand-500:#3A79D8;
  --c-brand-100:#E6EEFB;
  --c-brand-050:#F2F6FD;
  --c-accent-600:#D98A1F;
  --c-accent-500:#F0B24A;
  --c-accent-100:#FDF3E0;
  --c-ink-900:#0F1F38;
  --c-ink-700:#24354D;
  --c-ink-500:#5B6E86;
  --c-ink-400:#8A99AC;
  --c-line:#E1E8F2;
  --c-bg:#F5F8FC;
  --c-card:#FFFFFF;
  --c-link-muted:#A9BEDC;
  --r-card:14px;
  --r-lg:16px;
  --r-md:12px;
  --r-btn:10px;
  --r-pill:999px;
  --shadow-sm:0 1px 2px rgba(16,34,74,.04),0 8px 20px -12px rgba(16,34,74,.10);
  --shadow-md:0 2px 6px rgba(16,34,74,.06),0 18px 34px -16px rgba(16,34,74,.18);
  --shadow-lg:0 24px 48px -24px rgba(16,34,74,.28);
  --shadow-btn:0 6px 16px -8px rgba(31,91,196,.55);
  --t:180ms ease;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-ink-500);
  background:#fff;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;border:0}
a{color:var(--c-brand-600);text-decoration:none;transition:color var(--t)}
button{font:inherit;cursor:pointer}
input{font:inherit}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0}
h1,h2,h3,h4{margin:0;color:var(--c-ink-900);line-height:1.3;font-weight:600;letter-spacing:0}

a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--c-brand-600);
  outline-offset:2px;
  border-radius:6px;
}

.rl-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1600px){.rl-container{max-width:1280px}}

/* ============ 顶部工具条 ============ */
.topbar{
  background:var(--c-brand-900);
  color:#fff;
  min-height:38px;
  display:flex;
  align-items:center;
  font-size:13px;
}
.topbar .rl-container{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:38px}
.topbar-left{display:flex;align-items:center;gap:18px;color:rgba(255,255,255,.78)}
.topbar-left span{display:inline-flex;align-items:center;gap:7px}
.topbar-right{display:flex;align-items:center;gap:14px}
.topbar-right a{color:#fff;font-weight:500}
.topbar-right a:hover{color:var(--c-accent-500)}
.topbar-sep{width:1px;height:14px;background:rgba(255,255,255,.28)}
.topbar-dot{width:6px;height:6px;border-radius:50%;background:#2E9E6B;display:inline-block}
@media (max-width:767px){
  .topbar-left{display:none}
  .topbar .rl-container{justify-content:flex-end}
}

/* ============ 品牌行 ============ */
.brandbar{background:#fff;display:flex;align-items:center;min-height:76px}
.brandbar .rl-container{display:flex;align-items:center;gap:24px;min-height:76px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{flex:0 0 34px}
.brand-name{font-size:17px;font-weight:700;color:var(--c-ink-900);white-space:nowrap;letter-spacing:0}
.brand-search{position:relative;margin-left:auto;width:270px;flex:0 1 auto}
.search-input{
  width:100%;height:44px;border:1px solid var(--c-line);border-radius:var(--r-md);
  background:#fff;padding:0 46px 0 16px;font-size:14px;color:var(--c-ink-900);
  transition:border-color var(--t),box-shadow var(--t);
}
.search-input::placeholder{color:var(--c-ink-400)}
.search-input:focus{outline:none;border-color:var(--c-brand-600);box-shadow:0 0 0 3px rgba(31,91,196,.14)}
.search-btn{
  position:absolute;right:6px;top:6px;width:32px;height:32px;border:0;border-radius:8px;
  background:var(--c-brand-050);display:grid;place-items:center;color:var(--c-brand-600);
  transition:background var(--t),color var(--t);
}
.search-btn:hover{background:var(--c-brand-100)}
.brand-actions{display:flex;align-items:center;gap:16px;flex:0 0 auto}
.burger{
  display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:var(--r-btn);
  background:#fff;align-items:center;justify-content:center;color:var(--c-ink-700);
}
.burger:hover{background:var(--c-brand-050);border-color:var(--c-brand-100)}

.mobile-panel{
  display:none;background:#fff;border-top:1px solid var(--c-line);
  box-shadow:0 18px 30px -22px rgba(16,34,74,.28);
}
.mobile-panel.open{display:block}
.mobile-panel a{
  display:flex;align-items:center;height:48px;padding:0 24px;font-size:15px;
  color:var(--c-ink-700);border-bottom:1px solid var(--c-line);font-weight:500;
}
.mobile-panel a:last-child{border-bottom:0}
.mobile-panel a.active{color:var(--c-brand-600);font-weight:600}

@media (max-width:991px){
  .brand-search{width:220px}
}
@media (max-width:767px){
  .brandbar .rl-container{min-height:60px;gap:14px}
  .brandbar{min-height:60px}
  .brand-mark{flex:0 0 28px}
  .brand-name{font-size:15px}
  .brand-search{display:none}
  .brand-actions .hide-sm{display:none}
  .burger{display:flex}
}

/* ============ 频道行 ============ */
.channelbar{
  background:var(--c-brand-050);
  border-bottom:1px solid var(--c-line);
  position:sticky;top:0;z-index:60;
  transition:box-shadow var(--t);
}
.channelbar.is-stuck{box-shadow:0 6px 18px -10px rgba(16,34,74,.18)}
.channel-list{display:flex;align-items:stretch;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.channel-list::-webkit-scrollbar{display:none}
.channel-item{
  position:relative;display:inline-flex;align-items:center;height:52px;padding:0 20px;
  font-size:15px;font-weight:500;color:var(--c-ink-500);white-space:nowrap;
  transition:color var(--t),background var(--t);
}
.channel-item:hover{color:var(--c-brand-600);background:rgba(31,91,196,.05)}
.channel-item.active{color:var(--c-brand-600);font-weight:600}
.channel-item.active::after{
  content:"";position:absolute;left:20px;right:20px;bottom:0;height:2px;border-radius:2px;background:var(--c-brand-600);
}
.channel-wrap{position:relative}
.channel-wrap::after{
  content:"";position:absolute;right:0;top:0;bottom:0;width:36px;pointer-events:none;
  background:linear-gradient(90deg,rgba(242,246,253,0),var(--c-brand-050));
}
@media (max-width:767px){
  .channel-item{height:48px;padding:0 16px;font-size:14px}
  .channel-item.active::after{left:16px;right:16px}
}

/* ============ 通用组件 ============ */
.rl-section{padding:88px 0}
.rl-section.is-bg{background:var(--c-bg)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:40px}
.sec-tag{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--c-brand-600);margin-bottom:12px;
}
.sec-tag::before{content:"";width:16px;height:1px;background:linear-gradient(90deg,var(--c-brand-600),rgba(31,91,196,0))}
.sec-title{font-size:clamp(22px,2.4vw,30px);font-weight:600;color:var(--c-ink-900)}
.sec-sub{margin-top:12px;font-size:15px;color:var(--c-ink-500);max-width:700px;line-height:1.75}
.sec-more{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:500;
  color:var(--c-brand-600);white-space:nowrap;flex:0 0 auto;position:relative;
}
.sec-more::before{content:"";position:absolute;left:0;bottom:-3px;height:1px;width:0;background:currentColor;transition:width var(--t)}
.sec-more:hover::before{width:calc(100% - 18px)}
.sec-more svg{transition:transform var(--t)}
.sec-more:hover svg{transform:translateX(3px)}

.rl-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
  white-space:nowrap;
}
.rl-btn-lg{height:48px;padding:0 24px}
.rl-btn-sm{height:38px;padding:0 16px;font-size:14px}
.rl-btn-main{background:var(--c-brand-600);color:#fff;box-shadow:var(--shadow-btn)}
.rl-btn-main:hover{background:var(--c-brand-700);color:#fff;transform:translateY(-1px)}
.rl-btn-main:active{transform:translateY(0);box-shadow:none}
.rl-btn-ghost{background:#fff;border-color:var(--c-line);color:var(--c-brand-600)}
.rl-btn-ghost:hover{background:var(--c-brand-050);border-color:var(--c-brand-600);color:var(--c-brand-700)}
.rl-btn-gold{background:var(--c-accent-500);color:#3A2A0A;box-shadow:0 6px 16px -8px rgba(217,138,31,.6)}
.rl-btn-gold:hover{background:var(--c-accent-600);color:#fff;transform:translateY(-1px)}
.rl-btn-outline-light{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
.rl-btn-outline-light:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff}

.badge-soft{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
  background:var(--c-brand-100);color:var(--c-brand-600);font-size:13px;font-weight:500;
}
.badge-gold{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
  background:var(--c-accent-100);color:var(--c-accent-600);font-size:13px;font-weight:500;
}
.u-link{
  position:relative;display:inline-flex;align-items:center;gap:6px;
  color:var(--c-brand-600);font-weight:500;
}
.u-link::before{content:"";position:absolute;left:0;bottom:-3px;height:1px;width:0;background:currentColor;transition:width var(--t)}
.u-link:hover::before{width:100%}
.u-link::after{content:"→";font-size:13px;transition:transform var(--t)}
.u-link:hover::after{transform:translateX(3px)}

.starfield{position:relative;overflow:hidden}
.starfield::before{
  content:"";position:absolute;inset:0;pointer-events:none;z-index:0;
  background-image:
    radial-gradient(rgba(31,91,196,.16) 1.2px, transparent 1.3px),
    radial-gradient(rgba(31,91,196,.10) 1px, transparent 1.1px);
  background-size:148px 148px,206px 206px;
  background-position:0 0,72px 88px;
}
.starfield.on-dark::before{
  background-image:
    radial-gradient(rgba(255,255,255,.5) 1.2px, transparent 1.3px),
    radial-gradient(rgba(255,255,255,.34) 1px, transparent 1.1px);
  background-size:150px 150px,224px 224px;
  background-position:0 0,88px 96px;
}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  padding:56px 0 64px;
  border-bottom:1px solid var(--c-line);
  background:
    radial-gradient(115% 100% at 10% 0%, #F2F6FD 0%, rgba(242,246,253,0) 62%),
    radial-gradient(75% 90% at 88% 6%, rgba(240,178,74,.10) 0%, rgba(255,255,255,0) 62%),
    #fff;
}
.hero-inner{position:relative;z-index:2;min-height:520px;display:flex;align-items:center}
.hero-grid{
  display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;width:100%;
}
.hero-line{width:120px;height:1px;background:linear-gradient(90deg,var(--c-brand-600),rgba(31,91,196,0));margin-bottom:20px}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--c-brand-100);color:var(--c-brand-600);
  font-size:13px;font-weight:600;margin-bottom:20px;box-shadow:var(--shadow-sm);
}
.hero-badge i{width:6px;height:6px;border-radius:50%;background:var(--c-accent-500);display:block}
.hero-title{
  font-size:clamp(28px,3.4vw,44px);line-height:1.22;font-weight:700;color:var(--c-ink-900);
  max-width:14em;
}
.hero-sub{margin-top:18px;font-size:18px;line-height:1.7;color:var(--c-ink-500);max-width:34em}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-stats{display:flex;margin-top:38px;padding-top:26px;border-top:1px solid var(--c-line)}
.hero-stat{flex:1 1 0;padding:0 18px;border-left:1px solid var(--c-line)}
.hero-stat:first-child{border-left:0;padding-left:0}
.hero-stat .num{font-size:28px;font-weight:700;color:var(--c-brand-600);line-height:1.15;letter-spacing:0}
.hero-stat .num.gold{color:var(--c-accent-600)}
.hero-stat .txt{font-size:13px;color:var(--c-ink-400);margin-top:6px;line-height:1.5}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--shadow-lg);
}
.hero-float{
  position:absolute;right:-10px;bottom:-20px;background:#fff;border-radius:var(--r-card);
  padding:16px 18px;box-shadow:var(--shadow-md);display:flex;align-items:center;gap:14px;max-width:290px;
}
.hero-float .hf-title{font-size:15px;font-weight:600;color:var(--c-ink-900)}
.hero-float .hf-sub{font-size:13px;color:var(--c-ink-400);line-height:1.5;margin-top:2px}
.hero-float .hf-ico{
  flex:0 0 36px;height:36px;border-radius:10px;background:var(--c-brand-100);
  display:grid;place-items:center;color:var(--c-brand-600);
}

@media (max-width:991px){
  .hero-inner{min-height:0}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-media{order:2}
  .hero-float{right:12px;bottom:-16px}
  .hero-stats{flex-wrap:wrap;gap:20px 0}
  .hero-stat{flex:1 1 44%}
  .hero-stat:nth-child(3){border-left:0;padding-left:0}
}
@media (max-width:575px){
  .hero{padding:40px 0 52px}
  .hero-sub{font-size:16px}
  .hero-cta .rl-btn{width:100%}
  .hero-stat{flex:1 1 100%;border-left:0;padding:0}
  .hero-float{position:static;margin-top:16px;max-width:none}
}

/* ============ 三步上手 ============ */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;position:relative}
.step-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:28px;
  position:relative;transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--c-brand-100)}
.step-no{
  width:40px;height:40px;border-radius:10px;background:var(--c-accent-100);color:var(--c-accent-600);
  font-weight:700;font-size:15px;display:grid;place-items:center;letter-spacing:0;
}
.step-title{margin-top:20px;font-size:18px;font-weight:600;color:var(--c-ink-900)}
.step-desc{margin-top:10px;font-size:14px;line-height:1.75;color:var(--c-ink-500);min-height:49px}
.step-link{margin-top:18px;display:inline-flex}
@media (min-width:1200px){
  .step-card:not(:last-child)::after{
    content:"";position:absolute;top:48px;right:-24px;width:24px;border-top:1px dashed var(--c-brand-100);
  }
}
@media (max-width:991px){
  .steps{grid-template-columns:1fr;gap:16px}
  .step-card{padding-left:32px}
  .step-card::before{
    content:"";position:absolute;left:20px;top:34px;bottom:-20px;width:1px;
    background:var(--c-brand-100);
  }
  .step-card:last-child::before{display:none}
  .step-desc{min-height:0}
}

/* ============ 案例证明 ============ */
.case-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.case-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--c-brand-100)}
.case-thumb{aspect-ratio:16/10;overflow:hidden}
.case-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 240ms ease}
.case-card:hover .case-thumb img{transform:scale(1.04)}
.case-body{padding:22px 24px 24px}
.case-title{font-size:18px;font-weight:600;color:var(--c-ink-900)}
.case-desc{margin-top:10px;font-size:14px;line-height:1.75;color:var(--c-ink-500)}
.case-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.client-row{
  display:flex;flex-wrap:wrap;gap:20px 40px;justify-content:center;align-items:center;
  margin-top:44px;padding-top:32px;border-top:1px dashed var(--c-line);
}
.client-row span{
  font-size:15px;font-weight:500;color:var(--c-ink-400);opacity:.6;letter-spacing:.5px;
  transition:opacity var(--t),color var(--t);
}
.client-row span:hover{opacity:1;color:var(--c-ink-700)}
@media (max-width:767px){
  .case-grid{grid-template-columns:1fr;gap:16px}
}

/* ============ 最新信息 ============ */
.cms-grid{display:grid;grid-template-columns:6fr 3fr 3fr;gap:24px;align-items:stretch}
.cms-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.cms-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--c-brand-100)}
.cms-thumb{display:block;overflow:hidden;aspect-ratio:16/9}
.cms-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 240ms ease}
.cms-card:hover .cms-thumb img{transform:scale(1.04)}
.cms-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1 1 auto}
.cms-title{margin-top:14px;font-size:22px;line-height:1.4;font-weight:600}
.cms-title a{color:var(--c-ink-900);position:relative}
.cms-title a::before{content:"";position:absolute;left:0;bottom:-3px;height:1px;width:0;background:var(--c-brand-600);transition:width var(--t)}
.cms-title a:hover{color:var(--c-brand-600)}
.cms-title a:hover::before{width:100%}
.cms-desc{margin-top:12px;font-size:14px;line-height:1.75;color:var(--c-ink-500);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.cms-meta{
  margin-top:auto;padding-top:18px;display:flex;align-items:center;gap:12px;flex-wrap:wrap;
  font-size:13px;color:var(--c-ink-400);
}
.cms-meta .dot{width:1px;height:12px;background:var(--c-line)}
.cms-side{display:flex;flex-direction:column}
.cms-side .cms-thumb{aspect-ratio:4/3}
.cms-side .cms-title{font-size:17px;-webkit-line-clamp:2;display:-webkit-box;-webkit-box-orient:vertical;overflow:hidden}
.cms-side .cms-desc{-webkit-line-clamp:2}
.cms-side .cms-body{padding:18px 20px 20px}
.cms-empty{
  min-height:200px;border:1px dashed var(--c-line);background:var(--c-brand-050);border-radius:var(--r-card);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  color:var(--c-ink-400);font-size:14px;text-align:center;padding:24px;
}
.cms-empty svg{color:var(--c-brand-500);opacity:.7}
@media (max-width:991px){
  .cms-grid{grid-template-columns:1fr 1fr}
  .cms-grid .cms-main{grid-column:span 2}
}
@media (max-width:575px){
  .cms-grid{grid-template-columns:1fr}
  .cms-grid .cms-main{grid-column:span 1}
  .cms-title{font-size:18px}
}

/* ============ FAQ ============ */
.faq-side-note{margin-top:14px;font-size:14px;line-height:1.8;color:var(--c-ink-500)}
.faq-side-btn{margin-top:24px}
.faq-item{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);margin-bottom:12px;overflow:hidden}
.faq-item:last-child{margin-bottom:0}
.faq-q{
  width:100%;background:none;border:0;display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:18px 24px;text-align:left;font-size:16px;font-weight:600;color:var(--c-ink-900);
  transition:color var(--t);
}
.faq-q:hover{color:var(--c-brand-600)}
.faq-ico{position:relative;flex:0 0 16px;width:16px;height:16px;transition:transform var(--t)}
.faq-ico::before,.faq-ico::after{content:"";position:absolute;background:var(--c-ink-400);transition:background var(--t)}
.faq-ico::before{left:0;top:7.2px;width:16px;height:1.6px;border-radius:2px}
.faq-ico::after{top:0;left:7.2px;width:1.6px;height:16px;border-radius:2px}
.faq-item.open .faq-q{color:var(--c-brand-600)}
.faq-item.open .faq-ico{transform:rotate(45deg)}
.faq-item.open .faq-ico::before,.faq-item.open .faq-ico::after{background:var(--c-brand-600)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 240ms ease}
.faq-item.open .faq-a{max-height:420px}
.faq-a-inner{padding:0 24px 20px;font-size:15px;line-height:1.8;color:var(--c-ink-500)}
@media (max-width:575px){
  .faq-q{padding:16px 18px;font-size:15px}
  .faq-a-inner{padding:0 18px 18px}
}

/* ============ CTA 通栏 ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background:var(--c-brand-900);padding:48px 56px;
  display:flex;align-items:center;justify-content:space-between;gap:40px;
}
.cta-band::after{
  content:"";position:absolute;right:-70px;top:-90px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(240,178,74,1) 0%,rgba(240,178,74,0) 68%);
  opacity:.18;pointer-events:none;
}
.cta-band .cta-copy{position:relative;z-index:2;max-width:640px}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,30px)}
.cta-band p{margin-top:12px;font-size:15px;line-height:1.75;color:rgba(255,255,255,.72)}
.cta-actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto}
@media (max-width:991px){
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 28px;gap:28px}
  .cta-actions{width:100%}
  .cta-actions .rl-btn{flex:1 1 auto}
}
@media (max-width:575px){
  .cta-actions{flex-direction:column}
  .cta-actions .rl-btn{width:100%}
}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--c-brand-900);color:var(--c-link-muted);position:relative;overflow:hidden;
  padding:64px 0 0;margin-top:88px;
}
.footer-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.7fr 1fr 1fr 1.3fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px}
.footer-brand-name{font-size:16px;font-weight:700;color:#fff}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.9;color:var(--c-link-muted)}
.footer-time{margin-top:14px;font-size:13px;color:rgba(255,255,255,.62)}
.footer-title{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.footer-links a{display:block;font-size:14px;line-height:2.1;color:var(--c-link-muted)}
.footer-links a:hover{color:#fff;text-decoration:underline}
.footer-contact li{font-size:14px;line-height:2.1;color:var(--c-link-muted)}
.footer-contact li span{color:rgba(255,255,255,.6);margin-right:6px}
.footer-bottom{
  position:relative;z-index:2;margin-top:48px;border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 28px;font-size:13px;color:rgba(255,255,255,.55);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
@media (max-width:991px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:575px){
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{padding-top:48px;margin-top:64px}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important}
  .step-card:hover,.case-card:hover,.cms-card:hover,.rl-btn:hover{transform:none !important}
  .case-card:hover .case-thumb img,.cms-card:hover .cms-thumb img{transform:none !important}
}

/* roulang page: article */
:root{
  --c-brand-600:#1F5BC4;
  --c-brand-700:#17407F;
  --c-brand-900:#0E2244;
  --c-brand-500:#3A79D8;
  --c-brand-100:#E6EEFB;
  --c-brand-050:#F2F6FD;
  --c-accent-500:#F0B24A;
  --c-accent-600:#D98A1F;
  --c-accent-100:#FDF3E0;
  --c-ink-900:#0F1F38;
  --c-ink-700:#24354D;
  --c-ink-500:#5B6E86;
  --c-ink-400:#8A99AC;
  --c-line:#E1E8F2;
  --c-bg:#F5F8FC;
  --c-card:#FFFFFF;
  --c-danger:#D9534F;
  --shadow-sm:0 1px 2px rgba(16,34,74,.04), 0 8px 20px -12px rgba(16,34,74,.10);
  --shadow-md:0 2px 6px rgba(16,34,74,.06), 0 18px 34px -16px rgba(16,34,74,.18);
  --shadow-lg:0 24px 48px -24px rgba(16,34,74,.28);
  --shadow-btn:0 6px 16px -8px rgba(31,91,196,.55);
  --r-card:14px;
  --r-lg:16px;
  --r-sm:12px;
  --r-btn:10px;
  --r-icon:10px;
  --max-w:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Inter",system-ui,"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-ink-700);
  background:var(--c-card);
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--c-brand-600);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--c-brand-700);}
button,input{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;color:var(--c-ink-900);font-weight:600;line-height:1.3;letter-spacing:0;}
p{margin:0;}
ul,ol{margin:0;}
a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--c-brand-600);
  outline-offset:2px;
  border-radius:4px;
}
.rl-container{
  width:100%;
  max-width:var(--max-w);
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1600px){ .rl-container{max-width:1280px;} }

/* ---------- 顶部工具条 ---------- */
.topbar{
  background:var(--c-brand-900);
  color:#FFFFFF;
  font-size:13px;
  min-height:38px;
  display:flex;
  align-items:center;
}
.topbar-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  width:100%;
  gap:16px;
  padding:8px 0;
}
.topbar-left{display:flex;align-items:center;gap:20px;color:rgba(255,255,255,.78);}
.topbar-left span{display:inline-flex;align-items:center;gap:6px;}
.topbar-right{display:flex;align-items:center;gap:14px;}
.topbar-right a{color:#FFFFFF;font-weight:500;}
.topbar-right a:hover{color:var(--c-accent-500);}
.topbar-divider{width:1px;height:14px;background:rgba(255,255,255,.28);display:inline-block;}
@media (max-width:767px){
  .topbar-left{display:none;}
  .topbar-inner{justify-content:flex-end;}
}

/* ---------- 品牌行 ---------- */
.brandbar{
  background:#FFFFFF;
  padding:14px 0;
}
.brand-inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:52px;
}
.brand-logo{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-logo .logo-text{
  font-size:19px;
  font-weight:700;
  color:var(--c-ink-900);
  letter-spacing:.2px;
  white-space:nowrap;
}
.brand-logo:hover .logo-text{color:var(--c-brand-600);}
.brand-search{
  flex:1;
  max-width:420px;
  margin-left:auto;
  display:flex;
  align-items:center;
  background:var(--c-bg);
  border:1px solid var(--c-line);
  border-radius:999px;
  padding:0 6px 0 18px;
  height:44px;
  transition:border-color .18s ease, box-shadow .18s ease;
}
.brand-search:focus-within{
  border-color:var(--c-brand-600);
  box-shadow:0 0 0 3px rgba(31,91,196,.14);
  background:#FFFFFF;
}
.brand-search input{
  flex:1;
  border:0;
  background:transparent;
  outline:none;
  font-size:14px;
  color:var(--c-ink-700);
  height:100%;
}
.brand-search input::placeholder{color:var(--c-ink-400);}
.brand-search button{
  border:0;
  background:var(--c-brand-600);
  color:#FFFFFF;
  width:34px;height:34px;
  border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;
  transition:background .18s ease;
}
.brand-search button:hover{background:var(--c-brand-700);}
.brand-actions{display:flex;align-items:center;gap:14px;flex-shrink:0;}
.brand-link{
  font-size:14px;
  font-weight:500;
  color:var(--c-ink-500);
  white-space:nowrap;
}
.brand-link:hover{color:var(--c-brand-600);}
.brand-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--c-line);
  background:#FFFFFF;
  border-radius:var(--r-btn);
  color:var(--c-ink-700);
  cursor:pointer;
}

/* ---------- 按钮 ---------- */
.btn-rl{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--r-btn);
  font-weight:600;
  font-size:15px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .18s ease, background .18s ease, box-shadow .18s ease, border-color .18s ease, color .18s ease;
  white-space:nowrap;
}
.btn-rl.sm{height:38px;padding:0 16px;font-size:14px;}
.btn-primary-rl{
  background:var(--c-brand-600);
  color:#FFFFFF;
  box-shadow:var(--shadow-btn);
}
.btn-primary-rl:hover{background:var(--c-brand-700);color:#FFFFFF;transform:translateY(-1px);}
.btn-primary-rl:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{
  background:#FFFFFF;
  color:var(--c-brand-600);
  border-color:var(--c-line);
}
.btn-ghost:hover{
  background:var(--c-brand-050);
  border-color:var(--c-brand-600);
  color:var(--c-brand-700);
  transform:translateY(-1px);
}
.btn-ghost:active{transform:translateY(0);}
.btn-light-rl{
  background:#FFFFFF;
  color:var(--c-brand-900);
  font-weight:600;
}
.btn-light-rl:hover{background:var(--c-brand-050);color:var(--c-brand-900);transform:translateY(-1px);}

/* ---------- 频道行 ---------- */
.channelbar{
  background:var(--c-brand-050);
  border-bottom:1px solid var(--c-line);
  position:sticky;
  top:0;
  z-index:1030;
  transition:box-shadow .2s ease;
}
.channelbar.is-stuck{box-shadow:0 6px 18px -10px rgba(16,34,74,.18);}
.channel-wrap{display:flex;align-items:center;}
.channel-list{
  display:flex;
  align-items:center;
  gap:2px;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
  width:100%;
}
.channel-list::-webkit-scrollbar{display:none;}
.channel-item{
  display:inline-flex;
  align-items:center;
  height:50px;
  padding:0 20px;
  font-size:15px;
  font-weight:500;
  color:var(--c-ink-500);
  border-bottom:2px solid transparent;
  white-space:nowrap;
  transition:color .18s ease, background .18s ease, border-color .18s ease;
}
.channel-item:hover{color:var(--c-brand-600);background:rgba(31,91,196,.05);}
.channel-item.active{
  color:var(--c-brand-600);
  font-weight:600;
  border-bottom-color:var(--c-brand-600);
}

/* ---------- 移动菜单 ---------- */
.mobile-panel{
  display:none;
  background:#FFFFFF;
  border-bottom:1px solid var(--c-line);
}
.mobile-panel.open{display:block;}
.mobile-panel a{
  display:flex;
  align-items:center;
  min-height:48px;
  padding:0 24px;
  border-bottom:1px solid var(--c-line);
  color:var(--c-ink-700);
  font-size:15px;
  font-weight:500;
}
.mobile-panel a:hover{background:var(--c-brand-050);color:var(--c-brand-600);}

/* ---------- 面包屑 ---------- */
.crumb-bar{padding:20px 0 0;}
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--c-ink-400);
}
.crumb a{color:var(--c-ink-500);}
.crumb a:hover{color:var(--c-brand-600);text-decoration:underline;}
.crumb .sep{color:#C6D2E2;}
.crumb .current{color:var(--c-brand-600);font-weight:500;}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;
  padding:28px 0 34px;
  background:
    radial-gradient(circle at 8% 18%, rgba(31,91,196,.16) 1px, transparent 1.6px),
    radial-gradient(circle at 32% 62%, rgba(31,91,196,.14) 1px, transparent 1.6px),
    radial-gradient(circle at 74% 22%, rgba(31,91,196,.14) 1px, transparent 1.6px),
    radial-gradient(circle at 92% 74%, rgba(31,91,196,.12) 1px, transparent 1.6px),
    radial-gradient(circle at 50% 0%, #FFFFFF 0%, var(--c-brand-050) 72%, #FFFFFF 100%);
  border-bottom:1px solid var(--c-line);
}
.article-hero .starline{
  width:96px;height:1px;
  background:linear-gradient(90deg, var(--c-brand-600), rgba(31,91,196,0));
  margin-bottom:16px;
}
.article-h1{
  font-size:clamp(26px,3vw,36px);
  font-weight:700;
  line-height:1.32;
  color:var(--c-ink-900);
  max-width:900px;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px;
  margin-top:18px;
  font-size:14px;
  color:var(--c-ink-400);
}
.meta-sep{width:1px;height:13px;background:#D3DDEB;display:inline-block;}
.badge-soft{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 10px;
  border-radius:999px;
  background:var(--c-brand-100);
  color:var(--c-brand-600);
  font-size:13px;
  font-weight:500;
}
.badge-accent{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 10px;
  border-radius:999px;
  background:var(--c-accent-100);
  color:var(--c-accent-600);
  font-size:13px;
  font-weight:600;
}
.article-lead{
  position:relative;
  margin-top:24px;
  padding:4px 0 4px 18px;
  border-left:4px solid var(--c-accent-500);
  font-size:17px;
  line-height:1.9;
  color:var(--c-ink-500);
  max-width:860px;
}

/* ---------- 主体布局 ---------- */
.article-main{
  padding:56px 0 72px;
  background:#FFFFFF;
}
.article-grid{gap:0;}
.article-col{min-width:0;}

.article-body{
  max-width:800px;
  font-size:17px;
  line-height:1.9;
  color:var(--c-ink-700);
}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  font-size:24px;
  font-weight:600;
  color:var(--c-ink-900);
  margin:2em 0 .8em;
  padding-left:12px;
  border-left:4px solid var(--c-brand-600);
  scroll-margin-top:88px;
}
.article-body h3{
  font-size:20px;
  font-weight:600;
  color:var(--c-ink-900);
  margin:1.6em 0 .6em;
  scroll-margin-top:88px;
}
.article-body h4{
  font-size:17px;
  font-weight:600;
  color:var(--c-ink-900);
  margin:1.4em 0 .5em;
}
.article-body ul,
.article-body ol{
  margin:0 0 1.2em;
  padding-left:1.4em;
}
.article-body li{margin-bottom:.5em;}
.article-body ul li::marker{color:var(--c-brand-600);font-size:1em;}
.article-body ol li::marker{color:var(--c-brand-600);font-weight:600;}
.article-body blockquote{
  margin:1.6em 0;
  background:var(--c-brand-050);
  border-left:4px solid var(--c-brand-600);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  padding:20px 24px;
  color:var(--c-ink-500);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  width:100%;
  border-radius:var(--r-sm);
  margin:1.6em 0 .6em;
}
.article-body figure{margin:1.6em 0;}
.article-body figcaption{
  font-size:13px;
  color:var(--c-ink-400);
  text-align:center;
  margin-top:6px;
}
.article-body a{color:var(--c-brand-600);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--c-brand-700);}
.article-body table{
  width:100%;
  border-collapse:separate;
  border-spacing:0;
  border:1px solid var(--c-line);
  border-radius:var(--r-sm);
  overflow:hidden;
  margin:1.6em 0;
  font-size:15px;
}
.article-body thead th{
  background:var(--c-brand-050);
  color:var(--c-ink-900);
  font-weight:600;
  text-align:left;
}
.article-body th,
.article-body td{
  padding:12px 16px;
  border-bottom:1px solid var(--c-line);
}
.article-body tbody tr:nth-child(even){background:#FAFCFF;}
.article-body tbody tr:last-child td{border-bottom:0;}
.article-body pre{
  background:#F1F4F9;
  border-radius:var(--r-sm);
  padding:18px 20px;
  overflow-x:auto;
  font-size:14px;
  line-height:1.7;
  margin:1.6em 0;
}
.article-body code{
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  font-size:.92em;
  background:#F1F4F9;
  border-radius:6px;
  padding:2px 6px;
}
.article-body pre code{background:transparent;padding:0;}
.article-body hr{
  border:0;
  border-top:1px solid var(--c-line);
  margin:2.4em 0;
}

.article-empty{
  border:1px dashed #C9D8EE;
  background:var(--c-brand-050);
  border-radius:var(--r-card);
  padding:56px 24px;
  text-align:center;
}
.article-empty .empty-icon{
  width:52px;height:52px;
  margin:0 auto 16px;
  border-radius:var(--r-icon);
  background:#FFFFFF;
  color:var(--c-brand-600);
  display:flex;align-items:center;justify-content:center;
  font-size:22px;
  border:1px solid var(--c-line);
}
.article-empty .empty-title{
  font-size:19px;
  font-weight:600;
  color:var(--c-ink-900);
  margin-bottom:8px;
}
.article-empty .empty-desc{
  font-size:14px;
  color:var(--c-ink-500);
  margin-bottom:20px;
}

/* ---------- 侧栏 ---------- */
.article-side{
  padding-left:48px;
}
.side-sticky{
  position:sticky;
  top:88px;
}
.side-card{
  background:#FFFFFF;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-sm);
  padding:20px 20px 18px;
  margin-bottom:20px;
}
.side-title{
  font-size:15px;
  font-weight:600;
  color:var(--c-ink-900);
  display:flex;
  align-items:center;
  gap:8px;
  margin-bottom:14px;
}
.side-title i{color:var(--c-brand-600);font-size:14px;}
.toc-list{list-style:none;padding:0;margin:0;}
.toc-list li{margin-bottom:2px;}
.toc-list a{
  display:block;
  padding:7px 12px;
  font-size:14px;
  line-height:1.5;
  color:var(--c-ink-500);
  border-left:2px solid transparent;
  border-radius:0 8px 8px 0;
  transition:color .18s ease, background .18s ease, border-color .18s ease;
}
.toc-list a:hover{color:var(--c-brand-600);background:var(--c-brand-050);}
.toc-list a.active{
  color:var(--c-brand-600);
  font-weight:600;
  border-left-color:var(--c-brand-600);
  background:var(--c-brand-050);
}
.toc-empty{
  font-size:13px;
  color:var(--c-ink-400);
  padding:8px 12px;
  background:var(--c-bg);
  border-radius:10px;
}
.side-cta{
  background:var(--c-brand-050);
  border:1px solid #D9E5F8;
  border-radius:var(--r-card);
  padding:22px 20px;
  margin-bottom:20px;
  text-align:left;
}
.side-cta h3{
  font-size:16px;
  font-weight:600;
  color:var(--c-ink-900);
  margin-bottom:8px;
}
.side-cta p{
  font-size:13px;
  line-height:1.7;
  color:var(--c-ink-500);
  margin-bottom:16px;
}
.side-cta .btn-rl{width:100%;}

/* ---------- 标签 / 上下篇 ---------- */
.article-tail{margin-top:44px;}
.tag-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  padding-top:26px;
  border-top:1px solid var(--c-line);
}
.tag-row .tag-label{
  font-size:14px;
  color:var(--c-ink-400);
  margin-right:4px;
}
.tag-pill{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:999px;
  background:var(--c-brand-100);
  color:var(--c-brand-600);
  font-size:13px;
  font-weight:500;
  transition:background .18s ease, color .18s ease;
}
.tag-pill:hover{background:var(--c-brand-600);color:#FFFFFF;}

.pn-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:20px;
  margin-top:26px;
}
.pn-card{
  display:block;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:18px 20px;
  background:#FFFFFF;
  transition:border-color .18s ease, box-shadow .18s ease, transform .18s ease;
}
.pn-card:hover{
  border-color:var(--c-brand-600);
  box-shadow:var(--shadow-sm);
  transform:translateY(-2px);
}
.pn-card .pn-dir{
  font-size:13px;
  color:var(--c-ink-400);
  display:flex;
  align-items:center;
  gap:6px;
  margin-bottom:6px;
}
.pn-card .pn-title{
  font-size:15px;
  font-weight:600;
  color:var(--c-ink-900);
  line-height:1.5;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.pn-card:hover .pn-title{color:var(--c-brand-600);}
.pn-card.next{text-align:right;}
.pn-card.next .pn-dir{justify-content:flex-end;}
.back-links{
  display:flex;
  flex-wrap:wrap;
  gap:24px;
  margin-top:24px;
  font-size:14px;
  font-weight:500;
}
.back-links a{display:inline-flex;align-items:center;gap:6px;color:var(--c-ink-500);}
.back-links a:hover{color:var(--c-brand-600);}

/* ---------- 相关推荐 ---------- */
.related-section{
  background:var(--c-bg);
  padding:72px 0;
  border-top:1px solid var(--c-line);
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:28px;
}
.section-label{
  display:inline-block;
  font-size:13px;
  font-weight:600;
  color:var(--c-brand-600);
  letter-spacing:.4px;
  margin-bottom:8px;
}
.section-head h2{
  font-size:clamp(22px,2.4vw,30px);
  font-weight:600;
  color:var(--c-ink-900);
}
.more-link{
  font-size:14px;
  font-weight:600;
  color:var(--c-brand-600);
  display:inline-flex;
  align-items:center;
  gap:6px;
  white-space:nowrap;
}
.more-link i{transition:transform .18s ease;}
.more-link:hover i{transform:translateX(4px);}
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.post-card{
  background:#FFFFFF;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  box-shadow:var(--shadow-sm);
  transition:transform .24s ease, box-shadow .24s ease, border-color .24s ease;
}
.post-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-md);
  border-color:#D5E1F6;
}
.post-thumb{
  position:relative;
  aspect-ratio:4 / 3;
  overflow:hidden;
  background:var(--c-brand-050);
}
.post-thumb img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .4s ease;
}
.post-card:hover .post-thumb img{transform:scale(1.04);}
.post-body{
  padding:18px 20px 20px;
  display:flex;
  flex-direction:column;
  flex:1;
}
.post-body .badge-soft{align-self:flex-start;margin-bottom:12px;}
.post-title{
  font-size:17px;
  font-weight:600;
  line-height:1.5;
  color:var(--c-ink-900);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-card:hover .post-title{color:var(--c-brand-600);}
.post-desc{
  margin-top:10px;
  font-size:14px;
  line-height:1.7;
  color:var(--c-ink-500);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-foot{
  margin-top:auto;
  padding-top:16px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--c-ink-400);
}
.post-foot .arrow{
  width:28px;height:28px;
  border-radius:50%;
  background:var(--c-brand-050);
  color:var(--c-brand-600);
  display:inline-flex;align-items:center;justify-content:center;
  transition:background .18s ease,color .18s ease;
}
.post-card:hover .post-foot .arrow{background:var(--c-brand-600);color:#FFFFFF;}

/* ---------- 浅色 CTA 条 ---------- */
.cta-strip{
  background:#FFFFFF;
  padding:0 0 80px;
}
.cta-strip-inner{
  background:linear-gradient(90deg, var(--c-brand-050) 0%, #FFFFFF 100%);
  border:1px solid #DCE7F8;
  border-radius:var(--r-lg);
  padding:32px 36px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  box-shadow:var(--shadow-sm);
}
.cta-strip-inner h2{
  font-size:22px;
  font-weight:600;
  color:var(--c-ink-900);
  margin-bottom:6px;
}
.cta-strip-inner p{
  font-size:14px;
  color:var(--c-ink-500);
}
.cta-strip-actions{display:flex;gap:12px;flex-shrink:0;}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  background:var(--c-brand-900);
  color:#FFFFFF;
  padding:64px 0 26px;
  overflow:hidden;
}
.site-footer.on-dark::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    radial-gradient(circle at 6% 18%, rgba(255,255,255,.34) 1px, transparent 1.5px),
    radial-gradient(circle at 24% 72%, rgba(255,255,255,.24) 1px, transparent 1.5px),
    radial-gradient(circle at 44% 26%, rgba(255,255,255,.30) 1px, transparent 1.5px),
    radial-gradient(circle at 66% 80%, rgba(255,255,255,.22) 1px, transparent 1.5px),
    radial-gradient(circle at 82% 34%, rgba(255,255,255,.30) 1px, transparent 1.5px),
    radial-gradient(circle at 94% 66%, rgba(255,255,255,.20) 1px, transparent 1.5px);
  opacity:.35;
}
.site-footer .rl-container{position:relative;z-index:1;}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:16px;
}
.footer-brand-name{
  font-size:17px;
  font-weight:700;
  color:#FFFFFF;
}
.footer-desc{
  font-size:14px;
  line-height:1.85;
  color:#A9BEDC;
  margin-bottom:12px;
  max-width:320px;
}
.footer-time{
  font-size:13px;
  color:rgba(255,255,255,.6);
}
.footer-title{
  font-size:15px;
  font-weight:600;
  color:#FFFFFF;
  margin-bottom:16px;
}
.footer-links{
  display:flex;
  flex-direction:column;
  gap:6px;
}
.footer-links a{
  font-size:14px;
  line-height:2.1;
  color:#A9BEDC;
  transition:color .18s ease;
}
.footer-links a:hover{color:#FFFFFF;text-decoration:underline;}
.footer-contact{
  list-style:none;
  padding:0;
  margin:0;
  font-size:14px;
  line-height:2.1;
  color:#A9BEDC;
}
.footer-contact span{color:rgba(255,255,255,.68);}
.footer-bottom{
  margin-top:48px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px;
  font-size:13px;
  color:rgba(255,255,255,.55);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .article-side{padding-left:0;margin-top:40px;}
  .side-sticky{position:static;}
  .side-card,.side-cta{max-width:520px;}
}
@media (max-width:991px){
  .brand-search{display:none;}
  .brand-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .brand-inner{gap:12px;}
  .brand-actions .brand-link{display:none;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .article-main{padding:44px 0 56px;}
  .related-section{padding:56px 0;}
}
@media (max-width:767px){
  .rl-container{padding:0 20px;}
  .brand-logo .logo-text{font-size:17px;}
  .article-hero{padding:20px 0 26px;}
  .article-body{font-size:17px;}
  .pn-row{grid-template-columns:1fr;}
  .pn-card.next{text-align:left;}
  .pn-card.next .pn-dir{justify-content:flex-start;}
  .cta-strip-inner{flex-direction:column;align-items:flex-start;padding:26px 22px;}
  .cta-strip-actions{width:100%;}
  .cta-strip-actions .btn-rl{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .channel-item{padding:0 16px;font-size:14px;}
}
@media (max-width:575px){
  .rl-container{padding:0 16px;}
  .card-grid{grid-template-columns:1fr;}
  .brand-logo .logo-text{font-size:16px;}
  .article-body{font-size:17px;}
  .article-body h2{font-size:21px;}
  .article-body h3{font-size:18px;}
  .btn-rl{height:46px;padding:0 20px;}
  .article-grid{gap:0;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
  .post-card:hover{transform:none;}
}

/* roulang page: category1 */
:root{
  --c-brand-600:#1F5BC4;
  --c-brand-700:#17407F;
  --c-brand-900:#0E2244;
  --c-brand-500:#3A79D8;
  --c-brand-100:#E6EEFB;
  --c-brand-050:#F2F6FD;
  --c-accent-500:#F0B24A;
  --c-accent-600:#D98A1F;
  --c-accent-100:#FDF3E0;
  --c-ink-900:#0F1F38;
  --c-ink-800:#24354D;
  --c-ink-500:#5B6E86;
  --c-ink-400:#8A99AC;
  --c-line:#E1E8F2;
  --c-bg:#F5F8FC;
  --c-card:#FFFFFF;
  --c-link-muted:#A9BEDC;
  --r-card:14px;
  --r-img:16px;
  --r-sm:12px;
  --r-btn:10px;
  --r-pill:999px;
  --r-icon:10px;
  --shadow-sm:0 1px 2px rgba(16,34,74,.04),0 8px 20px -12px rgba(16,34,74,.10);
  --shadow-md:0 2px 6px rgba(16,34,74,.06),0 18px 34px -16px rgba(16,34,74,.18);
  --shadow-lg:0 24px 48px -24px rgba(16,34,74,.28);
  --ease:180ms ease;
  --ease-slow:240ms ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Inter","PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-ink-800);
  background:#FFFFFF;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--c-brand-600);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--c-brand-700)}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding-left:1.1em}
input,button{font-size:inherit}
:focus-visible{outline:2px solid var(--c-brand-600);outline-offset:2px;border-radius:6px}
.rl-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1600px){.rl-container{max-width:1280px}}
@media (max-width:991.98px){.rl-container{padding:0 20px}}
@media (max-width:767.98px){.rl-container{padding:0 16px}}
.starfield{
  background-image:
    radial-gradient(rgba(31,91,196,.16) 1px, transparent 1.3px),
    radial-gradient(rgba(31,91,196,.09) 1px, transparent 1.3px);
  background-size:190px 190px, 130px 130px;
  background-position:0 0, 62px 84px;
}
.starfield.on-dark{
  background-image:
    radial-gradient(rgba(255,255,255,.5) 1px, transparent 1.3px),
    radial-gradient(rgba(255,255,255,.26) 1px, transparent 1.3px);
  background-size:210px 210px, 140px 140px;
  background-position:0 0, 70px 90px;
}
/* 顶部工具条 */
.toolbar{background:var(--c-brand-900);color:#fff;font-size:13px;height:38px;display:flex;align-items:center}
.toolbar .rl-container{display:flex;align-items:center;justify-content:space-between;gap:16px}
.toolbar-left{display:flex;align-items:center;gap:18px;color:rgba(255,255,255,.82)}
.toolbar-left span{white-space:nowrap}
.toolbar-right{display:flex;align-items:center;gap:14px}
.toolbar-right a{color:#fff;font-weight:500}
.toolbar-right a:hover{color:var(--c-accent-500)}
.toolbar-sep{width:1px;height:14px;background:rgba(255,255,255,.28)}
@media (max-width:767.98px){.toolbar-left{display:none}}
/* 品牌行 */
.brandbar{background:#fff;position:relative;z-index:20}
.brand-inner{display:flex;align-items:center;gap:22px;height:78px}
.brand-logo{display:inline-flex;align-items:center;gap:10px;color:var(--c-ink-900)}
.brand-logo:hover{color:var(--c-brand-600)}
.brand-name{font-size:19px;font-weight:700;letter-spacing:0;white-space:nowrap}
.brand-search{position:relative;flex:1;max-width:400px;margin-left:auto}
.brand-search input{
  width:100%;height:44px;border:1px solid var(--c-line);border-radius:var(--r-sm);
  padding:0 46px 0 16px;color:var(--c-ink-800);background:#fff;transition:border-color var(--ease),box-shadow var(--ease);
}
.brand-search input::placeholder{color:var(--c-ink-400)}
.brand-search input:focus{outline:none;border-color:var(--c-brand-600);box-shadow:0 0 0 3px rgba(31,91,196,.14)}
.brand-search .search-submit{
  position:absolute;right:4px;top:4px;width:36px;height:36px;border:0;border-radius:9px;
  background:transparent;color:var(--c-ink-400);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;
  transition:background var(--ease),color var(--ease);
}
.brand-search .search-submit:hover{background:var(--c-brand-050);color:var(--c-brand-600)}
.brand-actions{display:flex;align-items:center;gap:16px}
.brand-actions .help-link{font-size:14px;font-weight:500;color:var(--c-ink-500)}
.brand-actions .help-link:hover{color:var(--c-brand-600)}
.search-icon-btn,.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:var(--r-sm);
  background:#fff;color:var(--c-ink-800);align-items:center;justify-content:center;cursor:pointer;
  transition:border-color var(--ease),color var(--ease),background var(--ease);
}
.search-icon-btn:hover,.nav-toggle:hover{border-color:var(--c-brand-600);color:var(--c-brand-600);background:var(--c-brand-050)}
.nav-toggle{flex-direction:column;gap:4px}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:currentColor}
.mobile-panel{
  background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);
  box-shadow:0 12px 24px -18px rgba(16,34,74,.28);
}
.mobile-panel a{
  display:flex;align-items:center;min-height:48px;padding:0 24px;color:var(--c-ink-800);
  font-size:15px;border-bottom:1px solid var(--c-line);
}
.mobile-panel a:last-child{border-bottom:0}
.mobile-panel a:hover{color:var(--c-brand-600);background:var(--c-brand-050)}
@media (max-width:991.98px){
  .brand-search{display:none}
  .search-icon-btn{display:inline-flex}
  .brandbar.search-open .brand-search{
    display:block;position:absolute;left:20px;right:20px;bottom:-60px;max-width:none;margin:0;
    background:#fff;padding:8px;border-radius:var(--r-sm);box-shadow:var(--shadow-md);z-index:40;
  }
}
@media (max-width:767.98px){
  .brand-inner{height:60px;gap:12px}
  .brand-name{font-size:16px}
  .brand-actions{display:none}
  .nav-toggle{display:inline-flex}
  .brandbar.search-open .brand-search{left:16px;right:16px}
}
/* 按钮 */
.rl-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.rl-btn-lg{height:48px;padding:0 24px;font-size:16px}
.rl-btn-sm{height:38px;padding:0 16px;font-size:14px}
.rl-btn-primary{background:var(--c-brand-600);color:#fff;box-shadow:0 6px 16px -8px rgba(31,91,196,.55)}
.rl-btn-primary:hover{background:var(--c-brand-700);color:#fff;transform:translateY(-1px)}
.rl-btn-primary:active{transform:translateY(0);box-shadow:none}
.rl-btn-outline{background:#fff;border-color:var(--c-line);color:var(--c-brand-600)}
.rl-btn-outline:hover{background:var(--c-brand-050);border-color:var(--c-brand-600);color:var(--c-brand-700);transform:translateY(-1px)}
.rl-btn-outline:active{transform:translateY(0)}
.rl-btn-light{background:#fff;color:var(--c-brand-700)}
.rl-btn-light:hover{background:#F4F8FF;color:var(--c-brand-700)}
/* 频道行 */
.channelbar{
  background:var(--c-brand-050);border-bottom:1px solid var(--c-line);
  position:sticky;top:0;z-index:30;transition:box-shadow var(--ease);
}
.channelbar.is-stuck{box-shadow:0 6px 18px -10px rgba(16,34,74,.18)}
.channel-wrap{display:flex;align-items:center}
.channel-list{
  display:flex;align-items:stretch;overflow-x:auto;width:100%;
  scrollbar-width:none;-ms-overflow-style:none;
}
.channel-list::-webkit-scrollbar{display:none}
.channel-item{
  display:inline-flex;align-items:center;height:52px;padding:0 20px;
  font-size:15px;font-weight:500;color:var(--c-ink-500);white-space:nowrap;
  border-bottom:2px solid transparent;transition:color var(--ease),background var(--ease),border-color var(--ease);
}
.channel-item:hover{color:var(--c-brand-600);background:rgba(31,91,196,.05)}
.channel-item.active{color:var(--c-brand-600);font-weight:600;border-bottom-color:var(--c-brand-600)}
@media (max-width:991.98px){
  .channelbar{position:static}
  .channel-item{padding:0 16px;font-size:14px;height:48px}
}
/* 面包屑 */
.crumb{padding:20px 0 0;font-size:14px;color:var(--c-ink-400)}
.crumb ol{list-style:none;display:flex;flex-wrap:wrap;gap:8px;padding:0;margin:0}
.crumb li{display:inline-flex;align-items:center;gap:8px}
.crumb li+li::before{content:"/";color:var(--c-line)}
.crumb a{color:var(--c-ink-500)}
.crumb a:hover{color:var(--c-brand-600)}
.crumb .current{color:var(--c-brand-600);font-weight:600}
/* 页面横幅 */
.page-banner{
  position:relative;padding:34px 0 52px;border-bottom:1px solid var(--c-line);
  background:linear-gradient(135deg,#F2F6FD 0%,#FFFFFF 62%);
}
.banner-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:48px;align-items:center}
.banner-tag{
  display:inline-flex;align-items:center;gap:8px;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--c-accent-100);color:var(--c-accent-600);font-size:13px;font-weight:600;margin-bottom:16px;
}
.banner-title{
  font-size:clamp(28px,3.2vw,40px);line-height:1.26;font-weight:700;color:var(--c-ink-900);
  letter-spacing:0;margin-bottom:14px;
}
.banner-sub{font-size:17px;line-height:1.75;color:var(--c-ink-500);max-width:560px}
.banner-figure{margin:0}
.banner-figure img{
  width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:var(--r-img);box-shadow:var(--shadow-lg);
}
@media (max-width:991.98px){
  .banner-grid{grid-template-columns:1fr;gap:28px}
  .banner-figure img{aspect-ratio:16/9}
}
@media (max-width:575.98px){
  .page-banner{padding:24px 0 36px;min-height:200px}
  .banner-title{font-size:26px}
  .banner-sub{font-size:16px}
}
/* 板块通用 */
.rl-section{padding:88px 0}
.rl-section.alt{background:var(--c-bg)}
@media (max-width:991.98px){.rl-section{padding:64px 0}}
@media (max-width:767.98px){.rl-section{padding:48px 0}}
.section-head{max-width:720px;margin-bottom:40px}
.section-tag{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--c-brand-600);margin-bottom:12px;letter-spacing:.02em;
}
.section-tag::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--c-brand-600),rgba(31,91,196,0))}
.section-title{font-size:clamp(22px,2.4vw,30px);line-height:1.32;font-weight:600;color:var(--c-ink-900);margin-bottom:14px}
.section-desc{font-size:16px;line-height:1.8;color:var(--c-ink-500)}
/* 图文交替流 */
.feature-flow{border-top:1px solid transparent}
.feature-row{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:48px;align-items:center;
  padding:56px 0;border-top:1px solid var(--c-line);
}
.feature-row:first-child{border-top:0;padding-top:0}
.feature-row:last-child{padding-bottom:0}
.feature-row.reverse .feature-media{order:2}
.feature-media{margin:0}
.feature-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-img);
  box-shadow:var(--shadow-sm);transition:transform var(--ease-slow),box-shadow var(--ease);
}
.feature-media img:hover{transform:scale(1.02);box-shadow:var(--shadow-md)}
.feature-copy h3{font-size:20px;font-weight:600;color:var(--c-ink-900);margin-bottom:14px}
.feature-copy p{font-size:16px;line-height:1.85;color:var(--c-ink-500);margin-bottom:18px}
.point-list{list-style:none;padding:0;margin:0 0 22px}
.point-list li{
  position:relative;padding-left:20px;font-size:15px;line-height:1.8;color:var(--c-ink-500);margin-bottom:8px;
}
.point-list li::before{
  content:"";position:absolute;left:2px;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--c-brand-600);
}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--c-brand-600);
  position:relative;padding-bottom:2px;
}
.link-arrow::after{
  content:"";position:absolute;left:0;bottom:0;width:100%;height:1px;background:currentColor;
  transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
}
.link-arrow:hover::after{transform:scaleX(1)}
.link-arrow i{transition:transform var(--ease)}
.link-arrow:hover i{transform:translateX(4px)}
@media (max-width:991.98px){
  .feature-row{grid-template-columns:1fr;gap:24px;padding:40px 0}
  .feature-row.reverse .feature-media{order:0}
}
/* 数据条 */
.stat-wrap{margin-top:64px}
.stat-bar{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-img);
  padding:30px 0;box-shadow:var(--shadow-sm);
}
.stat-item{padding:0 20px;border-right:1px solid var(--c-line);text-align:center}
.stat-item:last-child{border-right:0}
.stat-num{font-size:28px;font-weight:700;color:var(--c-brand-600);line-height:1.3}
.stat-num .unit{font-size:15px;font-weight:600;margin-left:2px;color:var(--c-brand-500)}
.stat-label{font-size:13px;color:var(--c-ink-400);margin-top:6px;line-height:1.6}
@media (max-width:767.98px){
  .stat-wrap{margin-top:40px}
  .stat-bar{grid-template-columns:repeat(2,minmax(0,1fr));padding:24px 0}
  .stat-item{padding:10px 16px;border-right:0}
  .stat-item:nth-child(odd){border-right:1px solid var(--c-line)}
  .stat-item:nth-child(1),.stat-item:nth-child(2){padding-bottom:22px}
  .stat-item:nth-child(3),.stat-item:nth-child(4){border-top:1px solid var(--c-line);padding-top:22px}
  .stat-num{font-size:24px}
}
/* FAQ */
.faq-list{max-width:860px}
.faq-item{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-sm);
  margin-bottom:12px;overflow:hidden;transition:border-color var(--ease);
}
.faq-item:hover{border-color:var(--c-brand-100)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;background:none;border:0;text-align:left;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--c-ink-900);line-height:1.6;
  transition:color var(--ease);
}
.faq-q:hover{color:var(--c-brand-600)}
.faq-q[aria-expanded="true"]{color:var(--c-brand-600)}
.faq-icon{position:relative;width:16px;height:16px;flex:0 0 16px;color:var(--c-ink-400);transition:transform var(--ease),color var(--ease)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;background:currentColor;border-radius:2px}
.faq-icon::before{width:14px;height:2px;transform:translate(-50%,-50%)}
.faq-icon::after{width:2px;height:14px;transform:translate(-50%,-50%)}
.faq-q[aria-expanded="true"] .faq-icon{transform:rotate(45deg);color:var(--c-brand-600)}
.faq-body{border-top:1px solid transparent}
.faq-body .inner{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--c-ink-500)}
@media (max-width:575.98px){
  .faq-q{padding:18px;font-size:15px}
  .faq-body .inner{padding:0 18px 18px}
}
/* 浅色 CTA 条 */
.cta-strip{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  background:linear-gradient(120deg,#F2F6FD 0%,#FFFFFF 100%);
  border:1px solid var(--c-line);border-radius:var(--r-img);
  padding:32px 36px;box-shadow:var(--shadow-sm);
}
.cta-strip h2{font-size:22px;font-weight:600;color:var(--c-ink-900);margin-bottom:8px}
.cta-strip p{font-size:15px;color:var(--c-ink-500);margin:0}
@media (max-width:767.98px){
  .cta-strip{padding:26px 22px;flex-direction:column;align-items:flex-start}
  .cta-strip .rl-btn{width:100%}
}
/* 页脚 */
.site-footer{background:var(--c-brand-900);color:#fff;padding:64px 0 0;margin-top:8px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand-name{font-size:18px;font-weight:700;color:#fff}
.footer-desc{font-size:14px;line-height:1.85;color:var(--c-link-muted);max-width:340px;margin-bottom:12px}
.footer-time{font-size:13px;color:rgba(255,255,255,.6)}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px}
.footer-links{display:flex;flex-direction:column}
.footer-links a{
  font-size:14px;line-height:2.1;color:var(--c-link-muted);
}
.footer-links a:hover{color:#fff;text-decoration:underline}
.footer-contact{list-style:none;padding:0;margin:0}
.footer-contact li{font-size:14px;line-height:2.1;color:var(--c-link-muted)}
.footer-contact li span{color:rgba(255,255,255,.62)}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}
@media (max-width:991.98px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-desc{max-width:none}
}
@media (max-width:575.98px){
  .site-footer{padding:48px 0 0}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px;margin-top:36px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .feature-media img:hover{transform:none}
  .rl-btn:hover{transform:none}
}

/* roulang page: category2 */
:root{
  --c-brand-600:#1F5BC4;
  --c-brand-700:#17407F;
  --c-brand-500:#3A79D8;
  --c-brand-900:#0E2244;
  --c-brand-100:#E6EEFB;
  --c-brand-050:#F2F6FD;
  --c-accent-500:#F0B24A;
  --c-accent-600:#D98A1F;
  --c-accent-100:#FDF3E0;
  --c-ink-900:#0F1F38;
  --c-ink-700:#24354D;
  --c-ink-500:#5B6E86;
  --c-ink-400:#8A99AC;
  --c-line:#E1E8F2;
  --c-bg:#F5F8FC;
  --c-card:#FFFFFF;
  --c-success:#2E9E6B;
  --shadow-sm:0 1px 2px rgba(16,34,74,.04),0 8px 20px -12px rgba(16,34,74,.10);
  --shadow-md:0 2px 6px rgba(16,34,74,.06),0 18px 34px -16px rgba(16,34,74,.18);
  --shadow-lg:0 24px 48px -24px rgba(16,34,74,.28);
  --r-card:14px;
  --r-big:16px;
  --r-sm:12px;
  --r-btn:10px;
  --r-icon:10px;
  --ease:180ms ease;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"Inter","PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-ink-700);
  background:#FFFFFF;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-brand-600);text-decoration:none;}
a:hover{color:var(--c-brand-700);}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
button,input{font:inherit;}
:focus-visible{outline:2px solid var(--c-brand-600);outline-offset:2px;border-radius:4px;}
.rl-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (min-width:1600px){.rl-container{max-width:1280px;}}

/* ---------- 星点纹理 ---------- */
.starfield-soft{
  background-image:
    radial-gradient(rgba(31,91,196,.16) 1px, transparent 1.2px),
    radial-gradient(rgba(31,91,196,.10) 1px, transparent 1.2px);
  background-size:190px 190px, 270px 270px;
  background-position:12px 18px, 120px 140px;
}
.starfield.on-dark,
.site-footer.on-dark{
  background-image:
    radial-gradient(rgba(255,255,255,.35) 1px, transparent 1.2px),
    radial-gradient(rgba(255,255,255,.22) 1px, transparent 1.2px);
  background-size:200px 200px, 300px 300px;
  background-position:16px 22px, 140px 150px;
}

/* ---------- 顶部工具条 ---------- */
.topbar{
  background:var(--c-brand-900);
  color:#fff;
  font-size:13px;
  min-height:38px;
}
.topbar-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:38px;
  gap:16px;
}
.topbar-left{display:flex;align-items:center;gap:18px;color:rgba(255,255,255,.78);}
.topbar-left .dot{width:6px;height:6px;border-radius:50%;background:var(--c-accent-500);display:inline-block;margin-right:8px;vertical-align:1px;}
.topbar-right{display:flex;align-items:center;gap:14px;}
.topbar-right a{color:#fff;font-size:13px;}
.topbar-right a:hover{color:var(--c-accent-500);}
.topbar-right .divider{width:1px;height:14px;background:rgba(255,255,255,.22);}
@media (max-width:767px){
  .topbar-left{display:none;}
  .topbar-inner{justify-content:flex-end;}
}

/* ---------- 品牌行 ---------- */
.brandbar{background:#fff;}
.brandbar-inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:76px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-name{
  font-size:19px;
  font-weight:700;
  color:var(--c-ink-900);
  letter-spacing:0;
  white-space:nowrap;
}
.brandbar .brand:hover .brand-name{color:var(--c-brand-600);}
.brand-search{
  flex:1;
  max-width:380px;
  margin-left:auto;
  display:flex;
  align-items:center;
  background:var(--c-brand-050);
  border:1px solid var(--c-line);
  border-radius:var(--r-sm);
  padding:0 8px 0 14px;
  height:44px;
  transition:border-color var(--ease), box-shadow var(--ease);
}
.brand-search:focus-within{
  border-color:var(--c-brand-600);
  box-shadow:0 0 0 3px rgba(31,91,196,.14);
}
.brand-search input{
  flex:1;
  border:0;
  background:transparent;
  outline:none;
  font-size:14px;
  color:var(--c-ink-700);
  min-width:0;
}
.brand-search input::placeholder{color:var(--c-ink-400);}
.brand-search button{
  border:0;
  background:transparent;
  color:var(--c-brand-600);
  width:34px;height:34px;
  display:grid;place-items:center;
  cursor:pointer;
  border-radius:8px;
}
.brand-search button:hover{background:var(--c-brand-100);}
.brand-actions{display:flex;align-items:center;gap:14px;flex-shrink:0;}
.brand-link{
  font-size:14px;
  font-weight:500;
  color:var(--c-ink-500);
  position:relative;
}
.brand-link:hover{color:var(--c-brand-600);}
.menu-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--c-line);
  background:#fff;
  border-radius:var(--r-btn);
  color:var(--c-ink-700);
  align-items:center;
  justify-content:center;
  cursor:pointer;
}
.menu-toggle:hover{border-color:var(--c-brand-600);color:var(--c-brand-600);}
.mobile-panel{
  display:none;
  border-top:1px solid var(--c-line);
  background:#fff;
}
.mobile-panel.open{display:block;}
.mobile-panel a{
  display:flex;
  align-items:center;
  min-height:48px;
  padding:0 24px;
  font-size:15px;
  color:var(--c-ink-700);
  border-bottom:1px solid var(--c-line);
}
.mobile-panel a:last-child{border-bottom:0;}
.mobile-panel a.active{color:var(--c-brand-600);font-weight:600;background:var(--c-brand-050);}
@media (max-width:991px){
  .brand-search{display:none;}
  .brand-actions{margin-left:auto;}
}
@media (max-width:767px){
  .brandbar-inner{min-height:62px;gap:14px;}
  .brand-name{font-size:16px;}
  .brand-link{display:none;}
  .menu-toggle{display:inline-flex;}
}

/* ---------- 频道行 ---------- */
.channelbar{
  background:var(--c-brand-050);
  position:sticky;
  top:0;
  z-index:40;
  transition:box-shadow var(--ease);
}
.channelbar.is-stuck{box-shadow:0 6px 18px -10px rgba(16,34,74,.18);}
.channel-wrap{display:flex;align-items:center;}
.channel-list{
  display:flex;
  align-items:center;
  gap:4px;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
  min-height:50px;
  width:100%;
}
.channel-list::-webkit-scrollbar{display:none;}
.channel-item{
  display:inline-flex;
  align-items:center;
  height:50px;
  padding:0 20px;
  font-size:15px;
  font-weight:500;
  color:var(--c-ink-500);
  white-space:nowrap;
  border-bottom:2px solid transparent;
  transition:color var(--ease), background var(--ease), border-color var(--ease);
}
.channel-item:hover{color:var(--c-brand-600);background:rgba(31,91,196,.06);}
.channel-item.active{
  color:var(--c-brand-600);
  font-weight:600;
  border-bottom-color:var(--c-brand-600);
}
@media (max-width:767px){
  .channel-item{padding:0 16px;font-size:14px;height:48px;}
  .channel-list{min-height:48px;}
}

/* ---------- 通用按钮 / 徽章 ---------- */
.rl-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  font-size:15px;
  font-weight:600;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  cursor:pointer;
  transition:background var(--ease), color var(--ease), border-color var(--ease), transform var(--ease), box-shadow var(--ease);
  white-space:nowrap;
}
.rl-btn-sm{height:44px;padding:0 20px;font-size:14px;}
.rl-btn-xs{height:38px;padding:0 16px;font-size:14px;}
.rl-btn-primary{
  background:var(--c-brand-600);
  color:#fff;
  box-shadow:0 6px 16px -8px rgba(31,91,196,.55);
}
.rl-btn-primary:hover{background:var(--c-brand-700);color:#fff;transform:translateY(-1px);}
.rl-btn-primary:active{transform:translateY(0);box-shadow:none;}
.rl-btn-ghost{
  background:#fff;
  color:var(--c-brand-600);
  border-color:var(--c-line);
}
.rl-btn-ghost:hover{background:var(--c-brand-050);border-color:var(--c-brand-600);color:var(--c-brand-600);transform:translateY(-1px);}
.rl-btn-ghost:active{transform:translateY(0);}
.rl-btn-gold{
  background:var(--c-accent-500);
  color:#3A2705;
}
.rl-btn-gold:hover{background:#E3A234;color:#3A2705;transform:translateY(-1px);}

.badge-soft{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 10px;
  font-size:13px;
  font-weight:500;
  border-radius:999px;
  background:var(--c-brand-100);
  color:var(--c-brand-600);
}
.badge-gold{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 10px;
  font-size:13px;
  font-weight:500;
  border-radius:999px;
  background:var(--c-accent-100);
  color:var(--c-accent-600);
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  color:var(--c-brand-600);
  letter-spacing:.02em;
}
.eyebrow::before{
  content:"";
  width:36px;height:1px;
  background:linear-gradient(90deg,var(--c-brand-600),rgba(31,91,196,0));
}

/* ---------- 页面横幅 ---------- */
.page-hero{
  position:relative;
  background:linear-gradient(160deg,var(--c-brand-050) 0%,#FFFFFF 78%);
  border-bottom:1px solid var(--c-line);
  padding:44px 0 56px;
  overflow:hidden;
}
.page-hero-inner{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:48px;
  align-items:center;
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--c-ink-400);
  margin-bottom:18px;
}
.breadcrumb a{color:var(--c-ink-500);}
.breadcrumb a:hover{color:var(--c-brand-600);}
.breadcrumb .sep{color:#C3CEDD;}
.breadcrumb .current{color:var(--c-brand-600);font-weight:500;}
.page-hero h1{
  font-size:clamp(28px,3.2vw,40px);
  line-height:1.24;
  font-weight:700;
  color:var(--c-ink-900);
  margin-bottom:16px;
}
.page-hero-sub{
  font-size:17px;
  line-height:1.75;
  color:var(--c-ink-500);
  max-width:560px;
}
.page-hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.page-hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.page-hero-media{
  position:relative;
  border-radius:var(--r-big);
  overflow:hidden;
  box-shadow:var(--shadow-lg);
  aspect-ratio:3/2;
}
.page-hero-media img{width:100%;height:100%;object-fit:cover;}
@media (max-width:991px){
  .page-hero-inner{grid-template-columns:1fr;gap:28px;}
  .page-hero-media{order:-1;aspect-ratio:16/9;}
}
@media (max-width:575px){
  .page-hero{padding:28px 0 36px;}
  .page-hero-sub{font-size:16px;}
}

/* ---------- 板块 ---------- */
.section{padding:88px 0;}
.section-alt{background:var(--c-bg);}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head h2{
  font-size:clamp(22px,2.4vw,30px);
  line-height:1.3;
  font-weight:700;
  color:var(--c-ink-900);
  margin:14px 0 12px;
}
.section-head p{font-size:16px;color:var(--c-ink-500);}
@media (max-width:991px){.section{padding:64px 0;}.section-head{margin-bottom:32px;}}
@media (max-width:575px){.section{padding:48px 0;}}

/* ---------- 卡片矩阵 ---------- */
.cap-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.cap-card{
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:26px 24px;
  box-shadow:var(--shadow-sm);
  display:flex;
  flex-direction:column;
  gap:12px;
  transition:transform 240ms ease, box-shadow 240ms ease, border-color 240ms ease;
}
.cap-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#C9DAF4;}
.cap-icon{
  width:44px;height:44px;
  border-radius:var(--r-icon);
  background:var(--c-brand-100);
  color:var(--c-brand-600);
  display:grid;place-items:center;
  margin-bottom:4px;
}
.cap-card h3{font-size:18px;font-weight:600;color:var(--c-ink-900);line-height:1.4;}
.cap-card p{font-size:14px;line-height:1.75;color:var(--c-ink-500);}
.cap-card .cap-foot{margin-top:auto;padding-top:8px;}
.link-more{
  position:relative;
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--c-brand-600);
}
.link-more::after{
  content:"";
  position:absolute;
  left:0;bottom:-3px;
  height:1px;width:0;
  background:currentColor;
  transition:width var(--ease);
}
.link-more:hover::after{width:100%;}
.link-more svg{transition:transform var(--ease);}
.link-more:hover svg{transform:translateX(3px);}
@media (max-width:1199px){.cap-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:767px){.cap-grid{grid-template-columns:1fr;gap:16px;}}

/* ---------- 纵向步骤 ---------- */
.flow-wrap{
  display:grid;
  grid-template-columns:4fr 8fr;
  gap:56px;
  align-items:start;
}
.flow-intro h2{
  font-size:clamp(22px,2.4vw,30px);
  font-weight:700;
  color:var(--c-ink-900);
  line-height:1.3;
  margin:14px 0 12px;
}
.flow-intro p{font-size:15px;color:var(--c-ink-500);margin-bottom:24px;}
.steps{position:relative;}
.step{
  position:relative;
  display:grid;
  grid-template-columns:52px 1fr;
  gap:20px;
  padding-bottom:30px;
}
.step:last-child{padding-bottom:0;}
.step::before{
  content:"";
  position:absolute;
  left:25px;
  top:48px;
  bottom:0;
  width:1px;
  border-left:1px dashed #C9DAF4;
}
.step:last-child::before{display:none;}
.step-num{
  width:50px;height:50px;
  border-radius:50%;
  background:#fff;
  border:1px solid var(--c-brand-100);
  color:var(--c-brand-600);
  font-weight:700;
  font-size:15px;
  display:grid;place-items:center;
  position:relative;
  z-index:1;
  box-shadow:var(--shadow-sm);
}
.step-body{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:20px 24px;
  box-shadow:var(--shadow-sm);
  transition:border-color var(--ease), box-shadow var(--ease);
}
.step-body:hover{border-color:#C9DAF4;box-shadow:var(--shadow-md);}
.step-body h3{font-size:17px;font-weight:600;color:var(--c-ink-900);margin-bottom:6px;}
.step-body p{font-size:14px;line-height:1.75;color:var(--c-ink-500);}
@media (max-width:991px){
  .flow-wrap{grid-template-columns:1fr;gap:32px;}
}

/* ---------- 提示条 ---------- */
.notice-bar{
  display:flex;
  align-items:center;
  gap:16px;
  background:var(--c-brand-050);
  border:1px solid var(--c-brand-100);
  border-radius:var(--r-card);
  padding:18px 24px;
  margin-top:40px;
}
.notice-bar .notice-icon{
  width:38px;height:38px;
  border-radius:10px;
  background:#fff;
  color:var(--c-brand-600);
  display:grid;place-items:center;
  flex-shrink:0;
}
.notice-bar p{font-size:14px;color:var(--c-ink-700);flex:1;}
.notice-bar p strong{color:var(--c-ink-900);}
@media (max-width:767px){
  .notice-bar{flex-wrap:wrap;gap:12px;padding:18px;}
  .notice-bar p{flex:1 1 100%;}
}

/* ---------- 资料准备 ---------- */
.prep{
  display:grid;
  grid-template-columns:6fr 6fr;
  gap:56px;
  align-items:center;
}
.prep-media{
  border-radius:var(--r-big);
  overflow:hidden;
  box-shadow:var(--shadow-lg);
  aspect-ratio:4/3;
}
.prep-media img{width:100%;height:100%;object-fit:cover;}
.checklist li{
  display:flex;
  gap:12px;
  padding:14px 0;
  border-bottom:1px dashed var(--c-line);
  font-size:15px;
  color:var(--c-ink-700);
}
.checklist li:last-child{border-bottom:0;}
.checklist .tick{
  width:22px;height:22px;
  border-radius:50%;
  background:var(--c-brand-100);
  color:var(--c-brand-600);
  display:grid;place-items:center;
  flex-shrink:0;
  margin-top:2px;
}
.checklist strong{color:var(--c-ink-900);font-weight:600;}
@media (max-width:991px){
  .prep{grid-template-columns:1fr;gap:28px;}
  .prep-media{order:-1;aspect-ratio:16/10;}
}

/* ---------- 问答 ---------- */
.qa-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:20px;
}
.qa-item{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:22px 24px;
  box-shadow:var(--shadow-sm);
  transition:border-color var(--ease), box-shadow var(--ease);
}
.qa-item:hover{border-color:#C9DAF4;box-shadow:var(--shadow-md);}
.qa-q{
  display:flex;
  gap:10px;
  font-size:16px;
  font-weight:600;
  color:var(--c-ink-900);
  line-height:1.55;
}
.qa-q .qmark{
  color:var(--c-accent-600);
  font-weight:700;
  flex-shrink:0;
}
.qa-a{font-size:14px;line-height:1.8;color:var(--c-ink-500);margin-top:8px;padding-left:24px;}
@media (max-width:767px){.qa-grid{grid-template-columns:1fr;gap:16px;}}

/* ---------- 浅色 CTA 条 ---------- */
.cta-strip{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  background:var(--c-brand-050);
  border:1px solid var(--c-brand-100);
  border-radius:var(--r-big);
  padding:28px 32px;
  position:relative;
  overflow:hidden;
}
.cta-strip::after{
  content:"";
  position:absolute;
  right:-40px;top:-60px;
  width:200px;height:200px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(240,178,74,.20),rgba(240,178,74,0) 68%);
  pointer-events:none;
}
.cta-strip h2{
  font-size:clamp(20px,2.2vw,26px);
  font-weight:700;
  color:var(--c-ink-900);
  line-height:1.35;
}
.cta-strip p{font-size:14px;color:var(--c-ink-500);margin-top:6px;}
.cta-strip-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:1;}
@media (max-width:767px){
  .cta-strip{flex-direction:column;align-items:flex-start;padding:24px;}
  .cta-strip-actions{width:100%;}
  .cta-strip-actions .rl-btn{flex:1;}
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-brand-900);
  color:#fff;
  padding:64px 0 0;
  margin-top:88px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.1fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand-name{font-size:17px;font-weight:700;color:#fff;}
.footer-desc{
  font-size:14px;
  line-height:1.8;
  color:#A9BEDC;
  max-width:320px;
  margin-bottom:14px;
}
.footer-time{font-size:13px;color:rgba(255,255,255,.6);}
.footer-title{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin-bottom:16px;
}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{
  font-size:14px;
  color:#A9BEDC;
  line-height:1.5;
  transition:color var(--ease);
}
.footer-links a:hover{color:#fff;text-decoration:underline;}
.footer-contact{display:flex;flex-direction:column;gap:11px;}
.footer-contact li{font-size:14px;color:#DCE6F5;line-height:1.6;}
.footer-contact span{color:#A9BEDC;}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;
  font-size:13px;
  color:rgba(255,255,255,.55);
}
@media (max-width:991px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:575px){
  .footer-grid{grid-template-columns:1fr;}
  .site-footer{margin-top:56px;padding-top:48px;}
}

@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  .cap-card:hover,.rl-btn:hover,.step-body:hover{transform:none !important;}
}

/* roulang page: category3 */
:root{
  --c-brand-900:#0E2244;
  --c-brand-700:#17407F;
  --c-brand-600:#1F5BC4;
  --c-brand-500:#3A79D8;
  --c-brand-100:#E6EEFB;
  --c-brand-050:#F2F6FD;
  --c-accent-600:#D98A1F;
  --c-accent-500:#F0B24A;
  --c-accent-100:#FDF3E0;
  --c-ink-900:#0F1F38;
  --c-ink-700:#24354D;
  --c-ink-500:#5B6E86;
  --c-ink-400:#8A99AC;
  --c-line:#E1E8F2;
  --c-bg:#F5F8FC;
  --c-card:#FFFFFF;
  --c-success:#2E9E6B;
  --c-link-muted:#A9BEDC;
  --r-card:14px;
  --r-banner:16px;
  --r-small:12px;
  --r-btn:10px;
  --r-pill:999px;
  --r-icon:10px;
  --shadow-sm:0 1px 2px rgba(16,34,74,.04), 0 8px 20px -12px rgba(16,34,74,.10);
  --shadow-md:0 2px 6px rgba(16,34,74,.06), 0 18px 34px -16px rgba(16,34,74,.18);
  --shadow-lg:0 24px 48px -24px rgba(16,34,74,.28);
  --shadow-btn:0 6px 16px -8px rgba(31,91,196,.55);
  --sp-section:88px;
  --ease:180ms ease;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"Inter","PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-ink-900);
  background:var(--c-card);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-brand-600);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--c-brand-700);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:0;color:var(--c-ink-900);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-brand-600);outline-offset:2px;box-shadow:0 0 0 2px #fff inset;}
::selection{background:var(--c-brand-100);color:var(--c-brand-700);}

.rl-container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1600px){ .rl-container{max-width:1280px;} }

/* ---------- 顶部工具条 ---------- */
.topbar{
  background:var(--c-brand-900);
  color:#fff;
  font-size:13px;
  line-height:1.6;
}
.topbar-inner{
  min-height:38px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:nowrap;
}
.topbar-left{display:flex;align-items:center;gap:12px;color:rgba(255,255,255,.78);}
.topbar-right{display:flex;align-items:center;gap:12px;}
.topbar-right a{color:rgba(255,255,255,.9);}
.topbar-right a:hover{color:#fff;text-decoration:underline;}
.topbar-divider{width:1px;height:14px;background:rgba(255,255,255,.22);display:inline-block;}
@media (max-width:767.98px){
  .topbar-left{display:none;}
  .topbar-inner{justify-content:flex-end;}
}

/* ---------- 品牌行 ---------- */
.brandbar{background:#fff;position:relative;z-index:60;}
.brandbar-inner{
  min-height:76px;
  display:flex;
  align-items:center;
  gap:28px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-name{
  font-size:19px;
  font-weight:700;
  color:var(--c-ink-900);
  letter-spacing:0;
  white-space:nowrap;
}
.brand:hover .brand-name{color:var(--c-brand-700);}
.brand-search{
  flex:1 1 auto;
  max-width:440px;
  display:flex;
  align-items:center;
  background:var(--c-bg);
  border:1px solid var(--c-line);
  border-radius:var(--r-small);
  height:44px;
  padding:0 4px 0 14px;
  transition:border-color var(--ease), box-shadow var(--ease), background var(--ease);
}
.brand-search:focus-within{
  border-color:var(--c-brand-600);
  background:#fff;
  box-shadow:0 0 0 3px rgba(31,91,196,.14);
}
.brand-search input{
  flex:1;
  border:0;
  background:transparent;
  font-size:14px;
  color:var(--c-ink-900);
  outline:none;
  height:100%;
  min-width:0;
}
.brand-search input::placeholder{color:var(--c-ink-400);}
.brand-search button{
  width:38px;height:36px;
  border:0;border-radius:8px;
  background:transparent;
  color:var(--c-ink-400);
  cursor:pointer;
  transition:background var(--ease),color var(--ease);
}
.brand-search button:hover{background:var(--c-brand-100);color:var(--c-brand-600);}
.brand-actions{margin-left:auto;display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.link-help{font-size:14px;font-weight:500;color:var(--c-ink-500);white-space:nowrap;}
.link-help:hover{color:var(--c-brand-600);text-decoration:underline;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--c-line);
  border-radius:var(--r-btn);
  background:#fff;
  color:var(--c-ink-700);
  cursor:pointer;
}
.mobile-panel{
  display:none;
  background:#fff;
  border-top:1px solid var(--c-line);
  box-shadow:var(--shadow-sm);
}
.mobile-panel.open{display:block;}
.mobile-panel a{
  display:block;
  padding:0 24px;
  height:48px;
  line-height:48px;
  font-size:15px;
  color:var(--c-ink-700);
  border-bottom:1px solid var(--c-line);
}
.mobile-panel a:last-child{border-bottom:0;}
.mobile-panel a.active{color:var(--c-brand-600);font-weight:600;background:var(--c-brand-050);}

/* ---------- 按钮 ---------- */
.btn-rl{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 20px;
  font-size:15px;
  font-weight:600;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  cursor:pointer;
  transition:transform var(--ease), background var(--ease), border-color var(--ease), color var(--ease), box-shadow var(--ease);
  white-space:nowrap;
}
.btn-rl-lg{height:48px;padding:0 24px;font-size:16px;}
.btn-rl-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-primary-rl{
  background:var(--c-brand-600);
  color:#fff;
  box-shadow:var(--shadow-btn);
}
.btn-primary-rl:hover{background:var(--c-brand-700);color:#fff;transform:translateY(-1px);}
.btn-primary-rl:active{transform:translateY(0);box-shadow:none;}
.btn-outline-rl{
  background:#fff;
  border-color:var(--c-line);
  color:var(--c-brand-600);
}
.btn-outline-rl:hover{background:var(--c-brand-050);border-color:var(--c-brand-600);color:var(--c-brand-700);transform:translateY(-1px);}
.btn-outline-rl:active{transform:translateY(0);}
.btn-light-rl{
  background:#fff;
  color:var(--c-brand-900);
  border-color:#fff;
}
.btn-light-rl:hover{background:var(--c-brand-050);color:var(--c-brand-900);transform:translateY(-1px);}
.btn-ghost-rl{
  background:transparent;
  border-color:rgba(255,255,255,.55);
  color:#fff;
}
.btn-ghost-rl:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;transform:translateY(-1px);}
.btn-block{width:100%;}

/* ---------- 频道行 ---------- */
.channelbar{
  background:var(--c-brand-050);
  position:sticky;
  top:0;
  z-index:55;
  transition:box-shadow var(--ease);
}
.channelbar.is-stuck{box-shadow:0 6px 18px -10px rgba(16,34,74,.18);}
.channel-wrap{display:flex;align-items:center;}
.channel-list{
  display:flex;
  align-items:stretch;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
  margin:0 -20px;
}
.channel-list::-webkit-scrollbar{display:none;}
.channel-item{
  display:inline-flex;
  align-items:center;
  height:50px;
  padding:0 20px;
  font-size:14.5px;
  font-weight:500;
  color:var(--c-ink-500);
  white-space:nowrap;
  position:relative;
  transition:color var(--ease), background var(--ease);
}
.channel-item:hover{color:var(--c-brand-600);background:rgba(31,91,196,.05);}
.channel-item.active{color:var(--c-brand-600);font-weight:600;}
.channel-item.active::after{
  content:"";
  position:absolute;
  left:20px;right:20px;bottom:0;
  height:2px;
  background:var(--c-brand-600);
  border-radius:2px;
}

/* ---------- 面包屑 ---------- */
.crumb-bar{padding:18px 0 0;background:#fff;}
.crumb{font-size:14px;color:var(--c-ink-400);display:flex;align-items:center;gap:8px;flex-wrap:wrap;}
.crumb a{color:var(--c-ink-500);}
.crumb a:hover{color:var(--c-brand-600);text-decoration:underline;}
.crumb .sep{color:var(--c-ink-400);}
.crumb .current{color:var(--c-brand-600);font-weight:500;}

/* ---------- 页头横幅 ---------- */
.page-hero{
  position:relative;
  background:linear-gradient(135deg,var(--c-brand-050) 0%,#FFFFFF 72%);
  border-bottom:1px solid var(--c-line);
  overflow:hidden;
  padding:52px 0 56px;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    radial-gradient(circle at 12% 24%, rgba(31,91,196,.16) 0 1.5px, transparent 2px),
    radial-gradient(circle at 68% 14%, rgba(31,91,196,.13) 0 1.2px, transparent 1.8px),
    radial-gradient(circle at 34% 78%, rgba(31,91,196,.12) 0 1.2px, transparent 1.8px),
    radial-gradient(circle at 88% 62%, rgba(31,91,196,.14) 0 1.5px, transparent 2px);
  background-size:420px 320px;
  background-repeat:repeat;
  opacity:.9;
}
.page-hero .rl-container{position:relative;z-index:1;}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);
  gap:48px;
  align-items:center;
}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:26px;
  padding:0 12px;
  border-radius:var(--r-pill);
  background:var(--c-brand-100);
  color:var(--c-brand-600);
  font-size:13px;
  font-weight:500;
  margin-bottom:18px;
}
.hero-badge i{font-size:12px;}
.page-hero h1{
  font-size:clamp(28px,3.2vw,40px);
  line-height:1.24;
  margin-bottom:16px;
}
.hero-sub{
  font-size:16px;
  line-height:1.8;
  color:var(--c-ink-500);
  max-width:560px;
  margin-bottom:22px;
}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin-bottom:26px;}
.hero-points li{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--c-ink-700);
}
.hero-points li i{color:var(--c-brand-600);font-size:13px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;}
.hero-figure{
  position:relative;
  border-radius:var(--r-banner);
  overflow:hidden;
  box-shadow:var(--shadow-lg);
  aspect-ratio:3/2;
}
.hero-figure img{width:100%;height:100%;object-fit:cover;}
.hero-figure .fig-card{
  position:absolute;
  left:16px;bottom:16px;
  background:rgba(255,255,255,.96);
  border-radius:var(--r-small);
  padding:12px 16px;
  box-shadow:var(--shadow-md);
  max-width:78%;
}
.fig-card .fig-title{font-size:14px;font-weight:600;color:var(--c-ink-900);}
.fig-card .fig-desc{font-size:13px;color:var(--c-ink-500);line-height:1.5;}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sp-section) 0;}
.section-alt{background:var(--c-bg);}
.section-head{max-width:720px;margin-bottom:40px;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  color:var(--c-brand-600);
  letter-spacing:.02em;
  margin-bottom:12px;
}
.eyebrow::before{
  content:"";
  width:34px;height:1px;
  background:linear-gradient(90deg,var(--c-brand-600),rgba(31,91,196,0));
}
.section-head h2{
  font-size:clamp(22px,2.4vw,30px);
  line-height:1.32;
  margin-bottom:14px;
}
.section-head p{font-size:15px;color:var(--c-ink-500);line-height:1.8;}

/* ---------- 对比卡组 ---------- */
.compare-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
  align-items:stretch;
}
.compare-card{
  position:relative;
  display:flex;
  flex-direction:column;
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-sm);
  overflow:hidden;
  transition:transform 240ms ease, box-shadow 240ms ease, border-color 240ms ease;
}
.compare-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.compare-card.featured{border-color:#D9E5FA;box-shadow:var(--shadow-md);}
.compare-flag{
  height:36px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:13px;
  font-weight:600;
  background:var(--c-brand-050);
  color:var(--c-ink-500);
}
.compare-card.featured .compare-flag{
  background:var(--c-accent-100);
  color:var(--c-accent-600);
}
.compare-body{padding:26px 24px 24px;display:flex;flex-direction:column;flex:1;}
.compare-body h3{font-size:19px;margin-bottom:8px;}
.compare-lead{font-size:14px;color:var(--c-ink-500);line-height:1.75;margin-bottom:20px;min-height:48px;}
.spec-row{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:14px;
  padding:12px 0;
  border-bottom:1px dashed var(--c-line);
  font-size:14px;
}
.spec-row:first-of-type{border-top:1px dashed var(--c-line);}
.spec-row .k{color:var(--c-ink-400);flex:0 0 auto;}
.spec-row .v{color:var(--c-ink-900);font-weight:600;text-align:right;line-height:1.6;}
.compare-foot{margin-top:22px;padding-top:4px;}

/* ---------- 时间线 ---------- */
.timeline-wrap{position:relative;padding-top:8px;}
.timeline{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  position:relative;
  gap:24px;
}
.timeline::before{
  content:"";
  position:absolute;
  top:19px;
  left:12%;
  right:12%;
  border-top:1px dashed #C9D8EE;
}
.tl-item{position:relative;padding:0 8px;}
.tl-dot{
  position:relative;
  z-index:1;
  width:38px;height:38px;
  border-radius:var(--r-pill);
  background:#fff;
  border:1px solid var(--c-brand-100);
  color:var(--c-brand-600);
  font-size:14px;
  font-weight:700;
  display:flex;
  align-items:center;
  justify-content:center;
  margin-bottom:18px;
  box-shadow:0 4px 10px -6px rgba(16,34,74,.24);
}
.tl-item h3{font-size:17px;margin-bottom:8px;}
.tl-item p{font-size:14px;color:var(--c-ink-500);line-height:1.75;}

/* ---------- 图文要点区 ---------- */
.key-figure{
  border-radius:var(--r-banner);
  overflow:hidden;
  box-shadow:var(--shadow-md);
  aspect-ratio:4/3;
}
.key-figure img{width:100%;height:100%;object-fit:cover;}
.key-list{margin-top:6px;}
.key-item{
  display:flex;
  gap:14px;
  padding:18px 0;
  border-bottom:1px solid var(--c-line);
}
.key-item:first-child{padding-top:0;}
.key-item:last-child{border-bottom:0;padding-bottom:0;}
.key-icon{
  flex:0 0 auto;
  width:40px;height:40px;
  border-radius:var(--r-icon);
  background:var(--c-accent-100);
  color:var(--c-accent-600);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:15px;
}
.key-item h3{font-size:17px;margin-bottom:6px;}
.key-item p{font-size:14px;color:var(--c-ink-500);line-height:1.75;}

/* ---------- 自查清单 + 数据条 ---------- */
.check-list{
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:28px;
  box-shadow:var(--shadow-sm);
}
.check-list h3{font-size:18px;margin-bottom:16px;}
.check-list li{
  position:relative;
  padding-left:24px;
  margin-bottom:14px;
  font-size:14.5px;
  color:var(--c-ink-700);
  line-height:1.75;
}
.check-list li:last-child{margin-bottom:0;}
.check-list li::before{
  content:"";
  position:absolute;
  left:2px;top:9px;
  width:6px;height:6px;
  border-radius:50%;
  background:var(--c-brand-600);
}
.tip-card{
  background:var(--c-brand-050);
  border:1px solid #DCE8FA;
  border-radius:var(--r-card);
  padding:26px;
  height:100%;
}
.tip-card h3{font-size:17px;margin-bottom:12px;}
.tip-card p{font-size:14px;color:var(--c-ink-500);line-height:1.8;margin-bottom:18px;}
.stats-bar{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
  margin-top:40px;
  padding-top:32px;
  border-top:1px solid var(--c-line);
}
.stat-item{position:relative;padding-right:20px;}
.stat-item + .stat-item{padding-left:20px;}
.stat-item + .stat-item::before{
  content:"";
  position:absolute;
  left:0;top:6px;bottom:6px;
  width:1px;
  background:var(--c-line);
}
.stat-num{
  font-size:28px;
  font-weight:700;
  color:var(--c-brand-600);
  line-height:1.2;
}
.stat-num .unit{font-size:16px;font-weight:600;margin-left:2px;}
.stat-label{font-size:13px;color:var(--c-ink-500);margin-top:6px;}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-small);
  overflow:hidden;
  transition:border-color var(--ease);
}
.faq-item.is-open{border-color:#D9E5FA;}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  text-align:left;
  background:transparent;
  border:0;
  padding:18px 24px;
  font-size:16px;
  font-weight:600;
  color:var(--c-ink-900);
  cursor:pointer;
  transition:color var(--ease);
}
.faq-q:hover{color:var(--c-brand-600);}
.faq-item.is-open .faq-q{color:var(--c-brand-600);}
.faq-icon{
  position:relative;
  flex:0 0 auto;
  width:16px;height:16px;
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--c-ink-400);
  transition:transform var(--ease), background var(--ease);
}
.faq-icon::before{left:0;top:7px;width:16px;height:1.5px;}
.faq-icon::after{left:7px;top:0;width:1.5px;height:16px;}
.faq-item.is-open .faq-icon::before{background:var(--c-brand-600);}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg);background:var(--c-brand-600);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height 260ms ease;
}
.faq-a p{
  padding:0 24px 20px;
  font-size:15px;
  line-height:1.85;
  color:var(--c-ink-500);
}

/* ---------- 浅色 CTA 条 ---------- */
.cta-strip{
  background:var(--c-brand-050);
  border:1px solid #DCE8FA;
  border-radius:var(--r-banner);
  padding:32px 36px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
}
.cta-strip h2{font-size:22px;margin-bottom:8px;}
.cta-strip p{font-size:14px;color:var(--c-ink-500);}
.cta-strip .cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-brand-900);
  color:#fff;
  padding:64px 0 0;
  position:relative;
  overflow:hidden;
}
.starfield::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  opacity:.35;
  background-image:
    radial-gradient(circle at 8% 22%, rgba(255,255,255,.5) 0 1.2px, transparent 1.8px),
    radial-gradient(circle at 62% 12%, rgba(255,255,255,.45) 0 1px, transparent 1.6px),
    radial-gradient(circle at 36% 74%, rgba(255,255,255,.4) 0 1px, transparent 1.6px),
    radial-gradient(circle at 84% 58%, rgba(255,255,255,.5) 0 1.2px, transparent 1.8px);
  background-size:380px 300px;
}
.site-footer .rl-container{position:relative;z-index:1;}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.25fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand-name{font-size:17px;font-weight:700;color:#fff;}
.footer-desc{font-size:14px;line-height:1.85;color:var(--c-link-muted);max-width:320px;margin-bottom:14px;}
.footer-time{font-size:13px;color:rgba(255,255,255,.6);}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px;}
.footer-links{display:flex;flex-direction:column;}
.footer-links a{
  font-size:14px;
  line-height:2.1;
  color:var(--c-link-muted);
}
.footer-links a:hover{color:#fff;text-decoration:underline;}
.footer-contact li{
  font-size:14px;
  line-height:2.1;
  color:var(--c-link-muted);
}
.footer-contact li span{color:rgba(255,255,255,.72);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(255,255,255,.55);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .hero-grid{gap:36px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
}
@media (max-width:991.98px){
  :root{--sp-section:64px;}
  .brand-search{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .hero-grid{grid-template-columns:1fr;}
  .hero-figure{order:-1;aspect-ratio:16/9;}
  .compare-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .compare-card.featured{transform:none;}
  .timeline{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px 24px;}
  .timeline::before{display:none;}
  .stats-bar{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 20px;}
  .stat-item:nth-child(odd){padding-left:0;}
  .stat-item:nth-child(odd)::before{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767.98px){
  .rl-container{padding:0 16px;}
  .brandbar-inner{min-height:64px;gap:16px;}
  .brand-name{font-size:16px;white-space:normal;line-height:1.3;}
  .link-help{display:none;}
  .page-hero{padding:36px 0 40px;}
  .hero-sub{font-size:15px;}
  .compare-grid{grid-template-columns:1fr;}
  .timeline{grid-template-columns:1fr;gap:0;}
  .timeline::before{
    display:block;
    top:8px;bottom:8px;left:18px;right:auto;
    width:1px;height:auto;
    border-top:0;
    border-left:1px dashed #C9D8EE;
  }
  .tl-item{padding:0 0 28px 0;display:grid;grid-template-columns:38px 1fr;column-gap:16px;}
  .tl-dot{margin-bottom:0;grid-row:span 2;}
  .tl-item h3{grid-column:2;font-size:16px;}
  .tl-item p{grid-column:2;}
  .cta-strip{padding:26px 22px;}
  .cta-strip h2{font-size:19px;}
  .cta-strip .cta-actions{width:100%;}
  .cta-strip .cta-actions .btn-rl{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:36px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .check-list{padding:22px;}
}
@media (max-width:575.98px){
  .page-hero::before{background-size:520px 420px;opacity:.5;}
  .stats-bar{grid-template-columns:1fr;gap:20px;}
  .stat-item{padding-left:0;padding-right:0;}
  .stat-item + .stat-item{padding-left:0;}
  .stat-item + .stat-item::before{display:none;}
  .hero-cta .btn-rl{width:100%;}
  .faq-q{padding:16px 18px;font-size:15px;}
  .faq-a p{padding:0 18px 18px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  .compare-card:hover,.btn-rl:hover{transform:none;}
}