/* roulang page: index */
:root{
  --brand:#1F4B99;
  --brand-dark:#163A7A;
  --brand-light:#E7EEFA;
  --gold:#E8A33D;
  --gold-light:#FDF3E3;
  --gold-text:#A96A15;
  --bg:#F6F8FC;
  --surface:#FFFFFF;
  --line:#E2E8F1;
  --text:#16233A;
  --text-2:#5A6B85;
  --text-3:#8A98AC;
  --ok:#2E9E6B;
  --r-lg:14px;
  --r-sm:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(22,58,122,.06);
  --sh-2:0 8px 24px -12px rgba(22,58,122,.22);
  --sh-3:0 16px 36px -16px rgba(22,58,122,.28);
  --sec-y:96px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",ui-sans-serif,system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--brand-dark)}
h1,h2,h3,h4,h5,h6{
  margin:0;
  font-family:inherit;
  color:var(--text);
  font-weight:700;
  letter-spacing:-.2px;
}
p{margin:0 0 16px;color:var(--text-2)}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ---------- layout ---------- */
.rl-container{max-width:1200px;margin:0 auto;padding-left:12px;padding-right:12px}
.rl-row{max-width:100%;margin-left:0;margin-right:0}
.rl-row>.columns,.rl-row>.column{padding-left:12px;padding-right:12px}
.pad-x{padding-left:12px;padding-right:12px}
.section{padding-top:var(--sec-y);padding-bottom:var(--sec-y)}
.section--plain{background:var(--bg)}
.section--white{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.section-head h2{font-size:30px;line-height:1.35}
.section-head .sub{margin-top:10px;font-size:15px;color:var(--text-2);max-width:640px}
.section-head h2::after{content:"";display:block;width:44px;height:4px;border-radius:2px;background:var(--brand);margin-top:14px}
.eyebrow{display:inline-block;font-size:13px;letter-spacing:.5px;color:var(--brand);font-weight:600;margin-bottom:12px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.2px;
  border:1px solid transparent;cursor:pointer;text-align:center;
  transition:background-color .18s ease,color .18s ease,box-shadow .18s ease,transform .16s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--brand-dark);color:#fff;box-shadow:var(--sh-2)}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--line)}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-dark);border-color:#C9D8F0}
.btn-light{background:#fff;color:var(--brand)}
.btn-light:hover{background:#EFF4FD;color:var(--brand-dark)}
.btn-sm{height:42px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand);
  transition:color .18s ease,gap .18s ease;
}
.link-arrow span{transition:transform .18s ease}
.link-arrow:hover span{transform:translateX(3px)}

/* ---------- chips / badges ---------- */
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:var(--brand-light);color:var(--brand);
  font-size:12px;font-weight:500;line-height:1.2;letter-spacing:.2px;
}
.chip--gold{background:var(--gold-light);color:var(--gold-text)}
.badge-dot{width:8px;height:8px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 1px #fff}

/* ---------- notice bar ---------- */
.notice-bar{background:var(--brand-light);border-bottom:1px solid #D7E3F6}
.notice-inner{
  display:flex;align-items:center;gap:10px;height:32px;
  font-size:12px;color:var(--brand-dark);letter-spacing:.2px;
}
.notice-inner .badge-dot{flex:none}
.notice-link{margin-left:auto;color:var(--brand);font-weight:600;display:inline-flex;align-items:center;gap:4px}
.notice-link:hover{color:var(--brand-dark)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.header-inner{display:flex;align-items:center;gap:20px;height:72px;transition:height .2s ease}
.site-header.is-scrolled .header-inner{height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  width:40px;height:40px;border-radius:10px;background:var(--brand);
  display:flex;align-items:center;justify-content:center;flex:none;
  box-shadow:var(--sh-1);
}
.brand-mark svg{width:22px;height:22px;display:block}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:16px;font-weight:700;color:var(--text);letter-spacing:-.2px}
.brand-sub{font-size:12px;color:var(--text-3);font-weight:500;margin-top:2px}
.seg-nav{
  display:flex;align-items:center;gap:4px;
  padding:4px;border:1px solid var(--line);border-radius:var(--r-pill);
  background:#fff;margin-left:8px;
}
.seg-chip{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:36px;padding:0 16px;border-radius:var(--r-pill);
  font-size:14px;font-weight:500;color:var(--text-2);
  transition:background-color .18s ease,color .18s ease;
  white-space:nowrap;
}
.seg-chip:hover{background:#F2F6FD;color:var(--brand)}
.seg-chip.is-active{background:var(--brand-light);color:var(--brand);font-weight:600}
.header-actions{display:flex;align-items:center;gap:16px;margin-left:auto;flex:none}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line);background:#fff;cursor:pointer;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-cta{
  display:none;width:44px;height:44px;border-radius:10px;background:var(--brand);
  align-items:center;justify-content:center;flex:none;
}
.mobile-cta svg{width:20px;height:20px;fill:#fff}
.mobile-chip-bar{display:none;border-top:1px solid var(--line);background:#fff}
.mobile-chip-wrap{position:relative}
.mobile-chip-wrap::before,.mobile-chip-wrap::after{content:"";position:absolute;top:0;bottom:0;width:20px;pointer-events:none;z-index:2}
.mobile-chip-wrap::before{left:0;background:linear-gradient(90deg,#fff,rgba(255,255,255,0))}
.mobile-chip-wrap::after{right:0;background:linear-gradient(270deg,#fff,rgba(255,255,255,0))}
.mobile-chip-scroll{
  display:flex;gap:8px;overflow-x:auto;padding:10px 20px;
  scrollbar-width:none;-ms-overflow-style:none;
}
.mobile-chip-scroll::-webkit-scrollbar{display:none}

/* ---------- mobile drawer ---------- */
.mobile-drawer{
  position:fixed;inset:0;z-index:90;background:#fff;
  display:flex;flex-direction:column;
  transform:translateY(-8px);opacity:0;visibility:hidden;
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
}
.mobile-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:72px;padding:0 20px;border-bottom:1px solid var(--line);flex:none}
.drawer-close{width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;font-size:20px;color:var(--text-2);cursor:pointer;line-height:1}
.drawer-nav{padding:20px;display:flex;flex-direction:column;gap:8px;overflow-y:auto;flex:1}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:52px;padding:0 18px;border-radius:10px;
  border:1px solid var(--line);color:var(--text);font-size:16px;font-weight:500;
}
.drawer-link.is-active{background:var(--brand-light);border-color:#C9D8F0;color:var(--brand);font-weight:600}
.drawer-foot{padding:16px 20px 24px;border-top:1px solid var(--line);flex:none}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background-color:#F2F6FD;
  background-image:linear-gradient(rgba(255,255,255,.9),rgba(255,255,255,.93)),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  padding-top:72px;padding-bottom:80px;
}
.hero::after{
  content:"";position:absolute;right:-40px;bottom:-40px;width:420px;height:320px;
  background-image:radial-gradient(rgba(31,75,153,.9) 1px,transparent 1px);
  background-size:22px 22px;opacity:.07;pointer-events:none;
}
.hero-row{row-gap:36px}
.hero-copy{position:relative;z-index:2}
.hero-title{
  font-size:44px;line-height:1.25;letter-spacing:-.5px;font-weight:700;
  margin:18px 0 0;
}
.hero-title .hl{color:var(--brand);border-bottom:6px solid rgba(232,163,61,.35);padding-bottom:2px}
.hero-sub{
  margin-top:18px;font-size:18px;line-height:1.8;color:var(--text-2);
  max-width:34em;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.trust-bar{
  display:flex;align-items:center;flex-wrap:wrap;gap:16px;
  margin-top:34px;padding-top:22px;border-top:1px solid var(--line);
  font-size:14px;color:var(--text-2);
}
.trust-item{display:inline-flex;align-items:baseline;gap:6px}
.trust-item strong{font-size:18px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums}
.trust-sep{width:1px;height:14px;background:var(--line)}
.hero-media{position:relative;z-index:2}
.hero-figure{
  position:relative;border-radius:16px;overflow:hidden;
  border:1px solid #DCE6F5;box-shadow:var(--sh-2);background:#fff;
  aspect-ratio:4/3;
}
.hero-figure img{width:100%;height:100%;object-fit:cover}
.hero-float{
  position:absolute;left:16px;bottom:16px;right:16px;
  background:#fff;border:1px solid var(--line);border-radius:12px;
  padding:14px 16px;box-shadow:var(--sh-2);
  display:flex;align-items:center;gap:12px;
}
.hero-float .badge-dot{flex:none;width:8px;height:8px}
.hero-float .hf-main{font-size:14px;font-weight:600;color:var(--text);line-height:1.4}
.hero-float .hf-time{font-size:12px;color:var(--text-3);margin-top:2px;font-variant-numeric:tabular-nums}

/* ---------- steps ---------- */
.steps-grid{display:flex;gap:0;align-items:stretch;margin-top:8px}
.step{
  flex:1;position:relative;padding:0 28px 0 0;
}
.step:last-child{padding-right:0}
.step::after{
  content:"";position:absolute;right:14px;top:20px;width:calc(100% - 68px);
  border-top:2px dashed #D2DEF1;
}
.step:last-child::after{display:none}
.step-num{
  width:40px;height:40px;border-radius:10px;background:var(--brand-light);
  color:var(--brand);font-size:16px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;position:relative;z-index:2;
}
.step:nth-child(3) .step-num{background:var(--gold-light);color:var(--gold-text)}
.step h3{font-size:18px;line-height:1.5;font-weight:600;margin:18px 0 8px}
.step p{font-size:15px;line-height:1.75;color:var(--text-2);margin:0}

/* ---------- scope ---------- */
.scope-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:32px;
}
.scope-list{display:flex;flex-direction:column;gap:0}
.scope-item{
  display:flex;gap:14px;padding:16px 0;border-bottom:1px dashed var(--line);
}
.scope-item:last-child{border-bottom:0;padding-bottom:0}
.scope-item:first-child{padding-top:0}
.scope-idx{
  flex:none;width:26px;height:26px;border-radius:8px;background:var(--brand-light);
  color:var(--brand);font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.scope-item h3{font-size:16px;font-weight:600;margin-bottom:4px;line-height:1.5}
.scope-item p{font-size:14px;line-height:1.7;color:var(--text-2);margin:0}

/* ---------- cases ---------- */
.case-main{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;height:100%;
  display:flex;flex-direction:column;
  transition:box-shadow .2s ease,transform .2s ease;
}
.case-main:hover{box-shadow:var(--sh-3);transform:translateY(-2px)}
.case-main figure{margin:0;aspect-ratio:16/9;overflow:hidden}
.case-main img{width:100%;height:100%;object-fit:cover}
.case-main .case-body{padding:26px}
.case-main h3{font-size:20px;line-height:1.5;font-weight:600;margin:14px 0 10px}
.case-main p{font-size:15px;line-height:1.75;color:var(--text-2);margin:0}
.case-stats{
  display:flex;flex-wrap:wrap;gap:28px;margin-top:22px;padding-top:20px;border-top:1px solid var(--line);
}
.case-stat strong{display:block;font-size:20px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.3}
.case-stat span{font-size:13px;color:var(--text-3)}
.case-side{display:flex;flex-direction:column;gap:20px;height:100%}
.quote-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:24px;flex:1;
  transition:box-shadow .2s ease,transform .2s ease;
}
.quote-card:hover{box-shadow:var(--sh-3);transform:translateY(-2px)}
.quote-top{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.quote-avatar{
  width:38px;height:38px;border-radius:50%;background:var(--brand-light);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;flex:none;
}
.quote-text{font-size:15px;line-height:1.75;color:var(--text);margin:0 0 14px}
.quote-meta{font-size:13px;color:var(--text-3);display:flex;flex-wrap:wrap;gap:8px;font-variant-numeric:tabular-nums}

/* ---------- news ---------- */
.news-feature{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;height:100%;
  display:flex;flex-direction:column;
  transition:box-shadow .2s ease,transform .2s ease;
}
.news-feature:hover{box-shadow:var(--sh-3);transform:translateY(-2px)}
.news-feature figure{margin:0;aspect-ratio:16/10;overflow:hidden;background:var(--brand-light)}
.news-feature img{width:100%;height:100%;object-fit:cover}
.news-feature .nf-body{padding:24px;display:flex;flex-direction:column;flex:1}
.news-feature h3{font-size:19px;line-height:1.5;font-weight:600;margin:12px 0 10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-feature h3 a{color:var(--text)}
.news-feature h3 a:hover{color:var(--brand)}
.news-feature p{font-size:14px;line-height:1.75;color:var(--text-2);margin:0 0 16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-feature .nf-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums}
.news-list{display:flex;flex-direction:column;gap:16px;height:100%}
.news-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:20px 22px;display:flex;gap:18px;
  transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.news-item:hover{box-shadow:var(--sh-3);transform:translateY(-2px);border-color:#C9D8F0}
.news-bar{width:4px;border-radius:2px;background:var(--brand-light);flex:none}
.news-item:hover .news-bar{background:var(--gold)}
.news-item .ni-body{flex:1;min-width:0}
.news-item h3{font-size:17px;line-height:1.5;font-weight:600;margin:8px 0 6px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-item h3 a{color:var(--text)}
.news-item h3 a:hover{color:var(--brand)}
.news-item p{font-size:14px;line-height:1.7;color:var(--text-2);margin:0 0 10px;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.news-item .ni-foot{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums}
.news-arrow{color:var(--brand);font-weight:600;font-size:16px}
.empty-state{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:40px;text-align:center;
}
.empty-state svg{width:36px;height:36px;margin:0 auto 14px;display:block;stroke:var(--text-3)}
.empty-state p{font-size:14px;color:var(--text-2);margin:0 0 18px}

/* ---------- faq ---------- */
.faq-side{position:sticky;top:104px}
.faq-side h2{font-size:30px;line-height:1.35}
.faq-side h2::after{content:"";display:block;width:44px;height:4px;border-radius:2px;background:var(--brand);margin-top:14px}
.faq-side p{font-size:15px;line-height:1.8;color:var(--text-2);margin:16px 0 20px}
.faq-contact{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:20px;box-shadow:var(--sh-1);
}
.faq-contact .fc-label{font-size:13px;color:var(--text-3);margin-bottom:6px}
.faq-contact a{font-weight:600;font-size:15px}
.rl-accordion{background:transparent;border:0;margin:0}
.rl-accordion .accordion-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);
  margin-bottom:12px;overflow:hidden;transition:background-color .18s ease,border-color .18s ease;
}
.rl-accordion .accordion-item:hover{border-color:#C9D8F0}
.rl-accordion .accordion-title{
  padding:18px 56px 18px 22px;border:0;font-size:16px;font-weight:600;color:var(--text);
  position:relative;background:transparent;transition:background-color .18s ease;
}
.rl-accordion .accordion-title:hover{background:#F9FBFF}
.rl-accordion .accordion-title::before{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:20px;font-weight:400;color:var(--brand);line-height:1;
  width:auto;height:auto;margin:0;background:none;
}
.rl-accordion .accordion-title[aria-expanded="true"]::before{content:"−"}
.rl-accordion .accordion-item.is-active{border-color:#C9D8F0}
.rl-accordion .accordion-item.is-active .accordion-title{background:#F9FBFF}
.rl-accordion .accordion-content{
  padding:2px 22px 20px;border:0;background:#F9FBFF;
  font-size:15px;line-height:1.8;color:var(--text-2);
}
.rl-accordion .accordion-content p{margin:0;font-size:15px;line-height:1.8;color:var(--text-2)}

/* ---------- cta ---------- */
.cta-wrap{padding-top:0;padding-bottom:var(--sec-y)}
.cta-card{
  position:relative;overflow:hidden;
  background:var(--brand);border-radius:20px;
  padding:56px 48px;display:flex;align-items:center;gap:40px;
  box-shadow:var(--sh-2);
}
.cta-card::after{
  content:"";position:absolute;right:-30px;bottom:-30px;width:300px;height:220px;
  background-image:radial-gradient(rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:20px 20px;opacity:.12;pointer-events:none;
}
.cta-copy{position:relative;z-index:2;flex:1;min-width:0}
.cta-copy h2{font-size:30px;line-height:1.35;color:#fff}
.cta-copy p{margin:12px 0 0;font-size:15px;line-height:1.8;color:rgba(255,255,255,.8);max-width:36em}
.cta-action{position:relative;z-index:2;flex:none;text-align:center}
.cta-note{margin:12px 0 0;font-size:12px;color:rgba(255,255,255,.7);line-height:1.6}

/* ---------- footer ---------- */
.site-footer{background:#16233A;color:#B9C6DA;padding-top:64px}
.footer-grid{display:flex;flex-wrap:wrap;gap:48px 32px}
.footer-brand{flex:1 1 280px;min-width:230px}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-sub{color:rgba(255,255,255,.55)}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);margin:18px 0 16px;max-width:24em}
.footer-status{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.75)}
.footer-col{flex:1 1 160px;min-width:140px}
.footer-col h3{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.3px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.62)}
.footer-col a:hover{color:#fff;text-decoration:underline}
.footer-col p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);margin:0 0 10px}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 28px;display:flex;flex-wrap:wrap;gap:10px 20px;align-items:center;justify-content:space-between;
}
.footer-bottom p{margin:0;font-size:12px;color:rgba(255,255,255,.5);line-height:1.7}
.footer-disclaimer{font-size:12px;color:rgba(255,255,255,.4);max-width:100%}

/* ---------- responsive ---------- */
@media screen and (max-width:1199px){
  .hero-title{font-size:40px}
  .seg-chip{padding:0 12px;font-size:13px}
}
@media screen and (max-width:1023px){
  :root{--sec-y:72px}
  .seg-nav,.header-actions{display:none}
  .nav-toggle,.mobile-cta{display:flex}
  .mobile-chip-bar{display:block}
  .header-inner{gap:12px}
  .hero{padding-top:48px;padding-bottom:64px}
  .hero-title{font-size:34px}
  .hero-sub{font-size:16px}
  .steps-grid{flex-direction:column;gap:24px}
  .step{padding:0 0 0 56px;position:relative}
  .step::before{
    content:"";position:absolute;left:19px;top:40px;bottom:-24px;width:2px;background:#D7E3F6;
  }
  .step:last-child::before{display:none}
  .step::after{display:none}
  .step-num{position:absolute;left:0;top:0}
  .step h3{margin-top:0}
  .faq-side{position:static;margin-bottom:28px}
  .cta-card{flex-direction:column;align-items:flex-start;padding:40px 28px;gap:26px}
  .cta-action{width:100%;text-align:left}
  .cta-action .btn{width:100%}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px}
}
@media screen and (max-width:767px){
  body{font-size:16px}
  .rl-container{padding-left:8px;padding-right:8px}
  .hero-title{font-size:30px;line-height:1.3}
  .hero-sub{font-size:15px}
  .hero-actions .btn{width:100%}
  .trust-bar{gap:12px;font-size:13px}
  .trust-sep{display:none}
  .hero-float{position:static;margin-top:14px;left:auto;bottom:auto;right:auto}
  .hero-figure{border-radius:14px}
  .section-head h2,.faq-side h2,.cta-copy h2{font-size:24px}
  .case-stats{gap:20px}
  .news-item{padding:18px}
  .footer-grid{gap:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .notice-inner{height:auto;padding:8px 0;font-size:12px;flex-wrap:wrap}
  .notice-link{margin-left:0}
}
@media screen and (max-width:519px){
  .hero-title{font-size:28px}
  .cta-card{padding:32px 20px;border-radius:16px}
  .scope-card{padding:22px}
  .case-main .case-body{padding:20px}
}

/* roulang page: article */
:root{
  --blue:#1F4B99;
  --blue-deep:#163A7A;
  --blue-soft:#E7EEFA;
  --blue-mist:#F2F6FD;
  --gold:#E8A33D;
  --gold-soft:#FDF3E3;
  --gold-ink:#A96A15;
  --page:#F6F8FC;
  --card:#FFFFFF;
  --line:#E2E8F1;
  --ink:#16233A;
  --body-ink:#26324A;
  --ink-2:#5A6B85;
  --ink-3:#8A98AC;
  --ok:#2E9E6B;
  --r-xl:20px;
  --r-lg:14px;
  --r-md:10px;
  --r-pill:999px;
  --sh1:0 1px 2px rgba(22,58,122,.06);
  --sh2:0 8px 24px -12px rgba(22,58,122,.22);
  --sh3:0 16px 36px -16px rgba(22,58,122,.28);
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  --font-num:ui-sans-serif,system-ui,"Segoe UI",Roboto,Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{display:block;max-width:100%;height:auto;}
a{color:var(--blue);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--blue-deep);}
button{font-family:inherit;cursor:pointer;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding-left:1.15em;}
::selection{background:var(--blue-soft);color:var(--blue-deep);}
:focus-visible{outline:2px solid var(--blue);outline-offset:2px;border-radius:4px;}

.rl-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--blue);color:#fff;padding:10px 18px;border-radius:0 0 var(--r-md) 0;z-index:99;}
.skip-link:focus{left:0;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  min-height:44px;padding:0 24px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.2px;
  border:1px solid transparent;cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .12s ease;
  white-space:nowrap;
}
.btn:hover{text-decoration:none;}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--blue);color:#fff;box-shadow:var(--sh1);}
.btn-primary:hover{background:var(--blue-deep);color:#fff;box-shadow:var(--sh2);}
.btn-ghost{background:#fff;color:var(--blue);border-color:var(--line);}
.btn-ghost:hover{background:var(--blue-soft);border-color:#C9DAF2;color:var(--blue-deep);}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn-white{background:#fff;color:var(--blue-deep);}
.btn-white:hover{background:#F0F5FE;color:var(--blue-deep);}
.link-arrow{display:inline-flex;align-items:center;gap:4px;font-size:14px;font-weight:500;color:var(--blue);transition:gap .18s ease,color .18s ease;}
.link-arrow span{transition:transform .18s ease;}
.link-arrow:hover{color:var(--blue-deep);text-decoration:none;}
.link-arrow:hover span{transform:translateX(3px);}

/* ---------- 公告条 ---------- */
.topbar{background:var(--blue-soft);border-bottom:1px solid #D8E4F6;}
.topbar-inner{display:flex;align-items:center;gap:10px;height:32px;font-size:12px;color:var(--blue-deep);}
.topbar-dot{width:8px;height:8px;border-radius:50%;background:var(--ok);border:1px solid #fff;flex:0 0 auto;}
.topbar-text{flex:1 1 auto;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.topbar-link{font-size:12px;font-weight:600;color:var(--blue);display:inline-flex;align-items:center;gap:3px;}
.topbar-link:hover{text-decoration:underline;}

/* ---------- 顶栏 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);backdrop-filter:saturate(140%) blur(6px);border-bottom:1px solid transparent;transition:box-shadow .2s ease,border-color .2s ease;}
.site-header.is-stuck{border-bottom-color:var(--line);box-shadow:var(--sh1);}
.nav-bar{position:relative;}
.nav-inner{display:flex;align-items:center;gap:20px;height:72px;transition:height .2s ease;}
.site-header.is-stuck .nav-inner{height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);flex:0 0 auto;}
.brand:hover{text-decoration:none;color:var(--ink);}
.brand-mark{width:38px;height:38px;border-radius:10px;background:var(--blue);display:inline-flex;align-items:center;justify-content:center;box-shadow:var(--sh1);flex:0 0 auto;}
.brand-mark svg{width:22px;height:22px;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:17px;font-weight:700;letter-spacing:-.2px;color:var(--ink);}
.brand-sub{font-size:12px;color:var(--ink-3);font-weight:500;letter-spacing:.4px;}
.seg-nav{
  display:flex;align-items:center;gap:2px;padding:4px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);
  box-shadow:var(--sh1);overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;flex:1 1 auto;
}
.seg-nav::-webkit-scrollbar{display:none;}
.seg-chip{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:36px;padding:0 16px;border-radius:var(--r-pill);
  font-size:14px;font-weight:500;color:var(--ink-2);white-space:nowrap;
  transition:background .18s ease,color .18s ease;
}
.seg-chip:hover{background:var(--blue-mist);color:var(--blue);text-decoration:none;}
.seg-chip.is-active{background:var(--blue-soft);color:var(--blue);font-weight:600;}
.seg-chip:active{background:#DBE7F9;}
.nav-actions{display:flex;align-items:center;gap:16px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-md);
  background:#fff;align-items:center;justify-content:center;padding:0;
}
.nav-toggle i{display:block;width:18px;height:2px;background:var(--ink);position:relative;transition:background .18s ease;}
.nav-toggle i::before,.nav-toggle i::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);transition:transform .18s ease,top .18s ease;}
.nav-toggle i::before{top:-6px;}
.nav-toggle i::after{top:6px;}
.mobile-drawer{display:none;}

/* ---------- 面包屑 ---------- */
.crumbs-wrap{padding:22px 0 0;}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);flex-wrap:wrap;}
.crumbs a{color:var(--ink-2);}
.crumbs a:hover{color:var(--blue);text-decoration:none;}
.crumbs .sep{color:#C3CDDD;}
.crumbs .current{color:var(--ink-3);max-width:60%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章头 ---------- */
.article-head{
  position:relative;margin-top:18px;padding:40px 0 32px;
  background-image:linear-gradient(100deg,rgba(255,255,255,.95) 0%,rgba(255,255,255,.88) 55%,rgba(255,255,255,.78) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.article-head::after{
  content:"";position:absolute;right:24px;bottom:10px;width:180px;height:120px;pointer-events:none;
  background-image:radial-gradient(rgba(31,75,153,.35) 1px,transparent 1px);
  background-size:14px 14px;opacity:.18;
}
.chip{display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:var(--r-pill);font-size:12px;font-weight:500;line-height:1;}
.chip-cat{background:var(--blue-soft);color:var(--blue);}
.chip-gold{background:var(--gold-soft);color:var(--gold-ink);}
.article-head h1{
  margin-top:16px;font-size:32px;line-height:1.4;font-weight:700;letter-spacing:-.4px;color:var(--ink);
  max-width:840px;
}
.meta-row{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-top:18px;font-size:14px;color:var(--ink-3);}
.meta-row .meta-item{font-variant-numeric:tabular-nums;font-family:var(--font-num);}
.meta-row .meta-item.cn{font-family:var(--font-cn);}
.meta-sep{color:#CBD5E4;}
.article-head .rule{height:1px;background:var(--line);margin-top:24px;}

/* ---------- 正文布局 ---------- */
.article-main{padding:48px 0 0;}
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 288px;
  gap:48px;align-items:start;
}
.article-panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh1);padding:40px;min-width:0;
}
.article-body{font-size:17px;line-height:1.9;color:var(--body-ink);}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 20px;}
.article-body h2{
  position:relative;font-size:22px;line-height:1.35;font-weight:600;color:var(--ink);
  margin:40px 0 16px;padding-left:16px;scroll-margin-top:110px;
}
.article-body h2::before{content:"";position:absolute;left:0;top:.28em;width:4px;height:18px;border-radius:2px;background:var(--gold);}
.article-body h3{font-size:18px;line-height:1.5;font-weight:600;color:var(--ink);margin:28px 0 12px;scroll-margin-top:110px;}
.article-body h4{font-size:16px;font-weight:600;color:var(--ink);margin:22px 0 10px;}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:1.25em;}
.article-body li{margin-bottom:8px;line-height:1.85;}
.article-body ul li::marker{color:var(--blue);}
.article-body ol li::marker{color:var(--blue);font-family:var(--font-num);}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;background:var(--blue-soft);
  border-left:3px solid var(--blue);border-radius:var(--r-md);color:var(--blue-deep);font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body a{color:var(--blue);font-weight:500;border-bottom:1px solid rgba(31,75,153,.28);transition:border-color .18s ease,color .18s ease;}
.article-body a:hover{color:var(--blue-deep);border-bottom-color:var(--blue-deep);text-decoration:none;}
.article-body img{border-radius:12px;margin:20px 0 8px;box-shadow:var(--sh1);}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:8px;}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;display:block;overflow-x:auto;}
.article-body th{background:var(--blue-soft);color:var(--blue-deep);font-weight:600;text-align:left;padding:12px 16px;border:1px solid var(--line);white-space:nowrap;}
.article-body td{padding:12px 16px;border:1px solid var(--line);color:var(--body-ink);}
.article-body tbody tr:nth-child(even) td{background:#FAFCFF;}
.article-body hr{border:none;border-top:1px solid var(--line);margin:36px 0;}
.article-body code{background:var(--blue-mist);color:var(--blue-deep);padding:2px 6px;border-radius:6px;font-size:14px;}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px;}
.side-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh1);padding:22px;}
.side-card h2,.side-card h3{font-size:15px;font-weight:600;color:var(--ink);margin:0 0 14px;display:flex;align-items:center;gap:8px;}
.side-card h2::before,.side-card h3::before{content:"";width:4px;height:14px;border-radius:2px;background:var(--blue);}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:320px;overflow-y:auto;}
.toc-link{display:block;padding:7px 10px;border-radius:8px;font-size:14px;line-height:1.6;color:var(--ink-2);border-left:2px solid transparent;transition:background .18s ease,color .18s ease,border-color .18s ease;}
.toc-link:hover{background:var(--blue-mist);color:var(--blue);text-decoration:none;}
.toc-link.toc-sub{padding-left:22px;font-size:13px;color:var(--ink-3);}
.side-cta{background:linear-gradient(160deg,#1F4B99 0%,#163A7A 100%);border:none;color:#fff;position:relative;overflow:hidden;}
.side-cta::after{content:"";position:absolute;right:-20px;bottom:-20px;width:120px;height:120px;background-image:radial-gradient(rgba(255,255,255,.5) 1px,transparent 1px);background-size:12px 12px;opacity:.14;}
.side-cta h2{color:#fff;}
.side-cta h2::before{background:var(--gold);}
.side-cta p{font-size:13px;line-height:1.75;color:rgba(255,255,255,.82);margin-bottom:16px;}
.side-cta .btn{width:100%;}
.side-links{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:2px;}
.side-links li a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:9px 10px;border-radius:8px;font-size:14px;color:var(--ink-2);transition:background .18s ease,color .18s ease;}
.side-links li a:hover{background:var(--blue-mist);color:var(--blue);text-decoration:none;}
.side-links li a span{color:#C3CDDD;font-size:15px;line-height:1;}

/* ---------- 空态 ---------- */
.empty-card{
  background:var(--card);border:1px dashed #CBD7E8;border-radius:var(--r-lg);
  padding:56px 32px;text-align:center;box-shadow:var(--sh1);
}
.empty-card .empty-icon{
  width:56px;height:56px;margin:0 auto 18px;border-radius:16px;background:var(--blue-soft);
  display:flex;align-items:center;justify-content:center;color:var(--blue);
}
.empty-card .empty-icon svg{width:26px;height:26px;}
.empty-card h2{font-size:20px;font-weight:600;color:var(--ink);margin-bottom:8px;}
.empty-card p{font-size:14px;color:var(--ink-2);margin-bottom:22px;}

/* ---------- 相关推荐 ---------- */
.related-section{padding:56px 0 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px;}
.section-head h2{font-size:28px;line-height:1.3;font-weight:600;color:var(--ink);letter-spacing:-.3px;}
.section-head .sub{font-size:14px;color:var(--ink-3);margin-top:8px;}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.rel-card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-lg);box-shadow:var(--sh1);overflow:hidden;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.rel-card:hover,.rel-card:focus-within{transform:translateY(-2px);box-shadow:var(--sh3);border-color:#CFDCEF;text-decoration:none;}
.rel-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--blue-mist);}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.rel-card:hover .rel-thumb img{transform:scale(1.03);}
.rel-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.rel-body h3{font-size:17px;font-weight:600;line-height:1.5;color:var(--ink);}
.rel-body p{font-size:14px;line-height:1.75;color:var(--ink-2);}
.rel-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;padding-top:6px;}
.rel-foot .tag{font-size:12px;color:var(--ink-3);}
.rel-foot .go{font-size:16px;color:var(--blue);line-height:1;transition:transform .18s ease;}
.rel-card:hover .rel-foot .go{transform:translateX(3px);}

/* ---------- 返回入口 ---------- */
.back-section{padding:48px 0 0;}
.back-bar{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:20px 26px;box-shadow:var(--sh1);
}
.back-bar p{font-size:14px;color:var(--ink-2);}
.back-bar .back-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:80px;background:#16233A;color:#C3CDDD;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-top:64px;padding-bottom:48px;}
.footer-brand .brand{margin-bottom:14px;}
.footer-brand .brand-name{color:#fff;}
.footer-brand .brand-sub{color:#8FA3C0;}
.footer-desc{font-size:14px;line-height:1.8;color:#9FB0C9;max-width:320px;}
.footer-status{display:inline-flex;align-items:center;gap:8px;margin-top:16px;font-size:12px;color:#9FB0C9;font-variant-numeric:tabular-nums;}
.badge-dot{width:8px;height:8px;border-radius:50%;background:var(--ok);border:1px solid #16233A;flex:0 0 auto;}
.footer-col h3{font-size:14px;font-weight:600;color:#fff;margin:0 0 16px;letter-spacing:.3px;}
.footer-col ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px;}
.footer-col ul a{font-size:14px;color:#9FB0C9;transition:color .18s ease;}
.footer-col ul a:hover{color:#fff;text-decoration:underline;}
.footer-col p{font-size:13px;line-height:1.8;color:#8FA3C0;margin-bottom:10px;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 24px 28px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;}
.footer-bottom p{font-size:13px;color:#8FA3C0;}
.footer-disclaimer{font-size:12px;color:#6E809B;}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  .nav-inner{height:66px;gap:14px;}
  .seg-nav{display:none;}
  .nav-actions .link-arrow{display:none;}
  .nav-toggle{display:inline-flex;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px;}
  .article-side{position:static;order:2;flex-direction:row;flex-wrap:wrap;}
  .article-side .side-card{flex:1 1 260px;}
  .article-panel{padding:32px;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;padding-top:52px;}
  .mobile-drawer{
    display:block;position:fixed;left:0;right:0;top:0;bottom:0;z-index:80;
    background:#fff;padding:88px 20px 20px;overflow-y:auto;
    transform:translateY(-8px);opacity:0;visibility:hidden;pointer-events:none;
    transition:opacity .2s ease,transform .2s ease,visibility .2s;
  }
  .mobile-drawer.is-open{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0);}
  .drawer-nav{display:flex;flex-direction:column;gap:6px;margin-bottom:24px;}
  .drawer-nav a{
    display:flex;align-items:center;justify-content:space-between;
    min-height:52px;padding:0 16px;border-radius:var(--r-md);
    font-size:16px;font-weight:500;color:var(--ink);background:#FAFCFF;border:1px solid var(--line);
  }
  .drawer-nav a:hover{background:var(--blue-mist);color:var(--blue);text-decoration:none;}
  .drawer-nav a.is-active{background:var(--blue-soft);color:var(--blue);font-weight:600;}
  .drawer-nav a span{color:#C3CDDD;}
  .drawer-cta{position:sticky;bottom:0;}
  .drawer-cta .btn{width:100%;}
  body.no-scroll{overflow:hidden;}
}
@media screen and (max-width:767px){
  .rl-container{padding:0 20px;}
  .topbar{display:none;}
  .article-head{padding:32px 0 28px;}
  .article-head h1{font-size:24px;line-height:1.45;}
  .article-main{padding-top:32px;}
  .article-panel{padding:24px 20px;border-radius:12px;}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body h2{font-size:20px;margin-top:32px;}
  .article-body h3{font-size:17px;margin-top:24px;}
  .related-grid{grid-template-columns:minmax(0,1fr);}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .section-head h2{font-size:23px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:32px;padding-top:44px;padding-bottom:36px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;padding:18px 20px 26px;}
  .back-bar{flex-direction:column;align-items:flex-start;}
  .crumbs .current{max-width:100%;}
}
@media screen and (max-width:519px){
  .brand-mark{width:34px;height:34px;border-radius:9px;}
  .brand-mark svg{width:20px;height:20px;}
  .brand-name{font-size:16px;}
  .brand-sub{font-size:11px;}
  .nav-actions .btn-primary{display:none;}
  .article-side{flex-direction:column;}
  .btn{width:100%;}
  .nav-toggle{width:42px;height:42px;}
  .back-actions .btn{width:auto;}
}

/* roulang page: category1 */
:root{
  --c-primary:#1F4B99;
  --c-primary-dark:#163A7A;
  --c-primary-light:#E7EEFA;
  --c-gold:#E8A33D;
  --c-gold-light:#FDF3E3;
  --c-gold-text:#A96A15;
  --c-bg:#F6F8FC;
  --c-surface:#FFFFFF;
  --c-line:#E2E8F1;
  --c-line-strong:#C9D6EA;
  --c-text:#16233A;
  --c-text-2:#5A6B85;
  --c-text-3:#8A98AC;
  --c-green:#2E9E6B;
  --r-lg:14px;
  --r-md:10px;
  --r-xl:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(22,58,122,.06);
  --sh-2:0 8px 24px -12px rgba(22,58,122,.22);
  --sh-3:0 16px 36px -16px rgba(22,58,122,.28);
  --wrap:1200px;
  --header-h:72px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{margin:0;font-weight:700;color:var(--c-text);letter-spacing:-.2px;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease,background-color .18s ease;}
a:hover{color:var(--c-primary-dark);}
img{max-width:100%;display:block;border:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,textarea,select{font-family:inherit;font-size:15px;color:var(--c-text);}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}
::selection{background:var(--c-primary-light);color:var(--c-primary-dark);}

.rl-container{width:100%;max-width:var(--wrap);margin:0 auto;padding-left:24px;padding-right:24px;}
.section{padding:96px 0;}
.section--alt{background:var(--c-surface);}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head .chip{margin-bottom:14px;}
.section-head h2{font-size:30px;line-height:1.35;margin-bottom:12px;}
.section-head p{color:var(--c-text-2);font-size:16px;max-width:620px;}

/* ---------- 公告条 ---------- */
.topbar{background:var(--c-primary-light);border-bottom:1px solid #D8E3F5;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:32px;padding-top:5px;padding-bottom:5px;}
.topbar-text{display:inline-flex;align-items:center;gap:8px;font-size:12px;line-height:1.5;color:var(--c-primary-dark);font-variant-numeric:tabular-nums;}
.badge-dot{width:8px;height:8px;border-radius:50%;background:var(--c-green);box-shadow:0 0 0 1px #fff;display:inline-block;flex:0 0 auto;}
.topbar-link{font-size:12px;font-weight:500;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px;}
.topbar-link:hover{color:var(--c-primary-dark);text-decoration:underline;}

/* ---------- 顶栏 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--c-line);transition:box-shadow .18s ease,background-color .18s ease;}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.header-inner{display:flex;align-items:center;gap:24px;padding-top:16px;padding-bottom:16px;transition:padding .18s ease;}
.site-header.is-scrolled .header-inner{padding-top:11px;padding-bottom:11px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{width:40px;height:40px;border-radius:10px;background:var(--c-primary);display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;box-shadow:var(--sh-1);}
.brand-mark svg{width:24px;height:24px;display:block;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:17px;font-weight:700;color:var(--c-text);letter-spacing:-.2px;}
.brand-sub{font-size:12px;color:var(--c-text-3);letter-spacing:.4px;margin-top:2px;}

.seg-nav{display:flex;align-items:center;gap:4px;padding:4px;margin:0 auto;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-pill);box-shadow:var(--sh-1);}
.seg-chip{display:inline-flex;align-items:center;justify-content:center;height:36px;padding:0 18px;border-radius:var(--r-pill);font-size:14px;font-weight:400;color:var(--c-text-2);white-space:nowrap;transition:background-color .18s ease,color .18s ease;}
.seg-chip:hover{background:var(--c-primary-light);color:var(--c-primary);}
.seg-chip.is-active{background:var(--c-primary-light);color:var(--c-primary);font-weight:500;}

.header-actions{display:flex;align-items:center;gap:16px;flex:0 0 auto;margin-left:auto;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:500;color:var(--c-primary);white-space:nowrap;}
.text-link .arw{transition:transform .18s ease;}
.text-link:hover{text-decoration:underline;}
.text-link:hover .arw{transform:translateX(2px);}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:12px 24px;border-radius:var(--r-md);font-size:15px;font-weight:600;line-height:1.2;border:1px solid transparent;transition:background-color .18s ease,border-color .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease;}
.btn-primary{background:var(--c-primary);border-color:var(--c-primary);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--c-primary-dark);border-color:var(--c-primary-dark);color:#fff;}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:#fff;border-color:var(--c-line-strong);color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-light);border-color:var(--c-primary-light);color:var(--c-primary-dark);}
.btn-ghost:active{transform:translateY(1px);}
.btn-white{background:#fff;border-color:#fff;color:var(--c-primary-dark);}
.btn-white:hover{background:#EFF4FD;border-color:#EFF4FD;color:var(--c-primary-dark);}
.btn-white:active{transform:translateY(1px);}
.btn-sm{min-height:40px;padding:9px 18px;font-size:14px;}

.nav-toggle{display:none;align-items:center;justify-content:center;width:44px;height:44px;border-radius:var(--r-md);border:1px solid var(--c-line);background:#fff;color:var(--c-primary);}
.nav-toggle:hover{background:var(--c-primary-light);}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* 移动抽屉 */
.mobile-drawer{position:fixed;inset:0;z-index:80;background:#fff;display:none;flex-direction:column;padding:20px 20px 24px;}
.mobile-drawer.is-open{display:flex;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--c-line);}
.drawer-close{width:44px;height:44px;border-radius:var(--r-md);border:1px solid var(--c-line);display:inline-flex;align-items:center;justify-content:center;font-size:20px;color:var(--c-text-2);}
.drawer-close:hover{background:var(--c-primary-light);color:var(--c-primary);}
.drawer-links{margin-top:12px;display:flex;flex-direction:column;}
.drawer-links a{display:flex;align-items:center;justify-content:space-between;min-height:52px;padding:0 4px;font-size:16px;color:var(--c-text);border-bottom:1px solid var(--c-line);}
.drawer-links a.is-active{color:var(--c-primary);font-weight:600;}
.drawer-links a:hover{color:var(--c-primary);}
.drawer-foot{margin-top:auto;padding-top:20px;}

/* ---------- 页头 ---------- */
.page-head{position:relative;overflow:hidden;background-image:url(/assets/images/backpic/back-1.png);background-size:cover;background-position:center;padding:72px 0 60px;}
.page-head::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(255,255,255,.95),rgba(255,255,255,.87));}
.page-head::after{content:"";position:absolute;right:-70px;bottom:-80px;width:340px;height:340px;background-image:radial-gradient(rgba(31,75,153,.55) 1.2px,transparent 1.2px);background-size:16px 16px;opacity:.14;pointer-events:none;}
.page-head .rl-container{position:relative;z-index:1;}
.page-head-inner{max-width:800px;}
.page-head h1{font-size:42px;line-height:1.28;margin:16px 0 18px;letter-spacing:-.5px;}
.page-head h1 .hl{color:var(--c-primary);}
.page-head .lead{font-size:17px;line-height:1.85;color:var(--c-text-2);max-width:640px;margin-bottom:12px;}
.page-head .lead:last-child{margin-bottom:0;}
.page-head-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;margin-top:24px;font-size:14px;color:var(--c-text-3);font-variant-numeric:tabular-nums;}
.page-head-meta .sep{width:1px;height:12px;background:var(--c-line-strong);display:inline-block;}

.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:6px;font-size:13px;color:var(--c-text-3);margin-bottom:18px;}
.crumb a{color:var(--c-text-2);}
.crumb a:hover{color:var(--c-primary);text-decoration:underline;}
.crumb .cur{color:var(--c-text-3);max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

.chip{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);background:var(--c-primary-light);color:var(--c-primary);font-size:12px;font-weight:500;line-height:1;white-space:nowrap;}
.chip-gold{background:var(--c-gold-light);color:var(--c-gold-text);}

/* ---------- 锚点条 ---------- */
.anchor-bar{position:sticky;top:var(--header-h,72px);z-index:50;background:#fff;border-bottom:1px solid var(--c-line);box-shadow:0 1px 0 rgba(22,58,122,.02);}
.anchor-inner{display:flex;align-items:center;gap:16px;padding-top:10px;padding-bottom:10px;}
.anchor-label{font-size:13px;color:var(--c-text-3);flex:0 0 auto;letter-spacing:.4px;}
.anchor-scroll{display:flex;align-items:center;gap:8px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;padding-bottom:2px;}
.anchor-scroll::-webkit-scrollbar{display:none;}
.chip-link{display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:var(--r-pill);border:1px solid var(--c-line);background:#fff;color:var(--c-text-2);font-size:14px;white-space:nowrap;transition:all .18s ease;}
.chip-link:hover{border-color:var(--c-primary-light);background:var(--c-primary-light);color:var(--c-primary);}
.chip-link:active{transform:translateY(1px);}

section[id]{scroll-margin-top:calc(var(--header-h,72px) + 76px);}

/* ---------- 图文交替 ---------- */
.split-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.split-row + .split-row{margin-top:88px;padding-top:88px;border-top:1px solid var(--c-line);}
.split-row.is-reverse .split-media{order:2;}
.split-media{position:relative;}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--sh-2);}
.split-media .media-tag{position:absolute;left:16px;bottom:16px;display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;border-radius:var(--r-pill);background:rgba(255,255,255,.94);color:var(--c-primary);font-size:12px;font-weight:500;box-shadow:var(--sh-1);}
.split-body h2{font-size:30px;line-height:1.35;margin:14px 0 16px;}
.split-body > p{font-size:16px;line-height:1.85;color:var(--c-text-2);max-width:560px;}
.point-list{margin-top:22px;display:flex;flex-direction:column;gap:12px;max-width:560px;}
.point-list li{position:relative;padding-left:28px;font-size:15px;line-height:1.75;color:var(--c-text-2);}
.point-list li::before{content:"";position:absolute;left:0;top:8px;width:14px;height:14px;border-radius:4px;background:var(--c-primary-light);border:1px solid #CFDDF3;}
.point-list li::after{content:"";position:absolute;left:4px;top:12px;width:6px;height:3px;border-left:2px solid var(--c-primary);border-bottom:2px solid var(--c-primary);transform:rotate(-45deg);}
.point-list li strong{color:var(--c-text);font-weight:600;}

/* ---------- 三步上手 ---------- */
.step-row{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:8px;}
.step-card{position:relative;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:26px 24px;box-shadow:var(--sh-1);transition:box-shadow .18s ease,transform .18s ease;}
.step-card:hover{box-shadow:var(--sh-3);transform:translateY(-2px);}
.step-num{width:40px;height:40px;border-radius:12px;background:var(--c-primary-light);color:var(--c-primary);display:inline-flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;font-variant-numeric:tabular-nums;margin-bottom:16px;}
.step-card.is-last .step-num{background:var(--c-gold-light);color:var(--c-gold-text);}
.step-card h3{font-size:18px;line-height:1.5;margin-bottom:8px;}
.step-card p{font-size:15px;line-height:1.75;color:var(--c-text-2);}
.step-card::after{content:"";position:absolute;top:46px;right:-20px;width:12px;height:2px;border-radius:2px;background:repeating-linear-gradient(90deg,var(--c-line-strong) 0 4px,transparent 4px 8px);}
.step-card:last-child::after{display:none;}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:1fr 1.6fr;gap:56px;align-items:start;}
.faq-aside h2{font-size:30px;line-height:1.35;margin-bottom:14px;}
.faq-aside p{font-size:15px;line-height:1.8;color:var(--c-text-2);max-width:320px;margin-bottom:20px;}
.faq-aside .text-link{font-size:15px;}
.faq-accordion{background:transparent;border:0;margin:0;}
.faq-accordion .accordion-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);margin-bottom:12px;overflow:hidden;box-shadow:var(--sh-1);transition:box-shadow .18s ease,border-color .18s ease;}
.faq-accordion .accordion-item:hover{border-color:#D6E1F1;}
.faq-accordion .accordion-item.is-active{box-shadow:var(--sh-2);border-color:#D6E1F1;}
.faq-accordion .accordion-title{border:0;padding:18px 56px 18px 22px;font-size:16px;font-weight:600;line-height:1.6;color:var(--c-text);position:relative;transition:background-color .18s ease,color .18s ease;display:block;}
.faq-accordion .accordion-title:hover{background:#F9FBFF;color:var(--c-primary);}
.faq-accordion .accordion-title::before{content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);width:24px;height:24px;line-height:22px;text-align:center;border-radius:50%;background:var(--c-primary-light);color:var(--c-primary);font-size:16px;font-weight:600;}
.faq-accordion .accordion-title[aria-expanded="true"]{background:#F9FBFF;color:var(--c-primary);}
.faq-accordion .accordion-title[aria-expanded="true"]::before{content:"−";}
.faq-accordion .accordion-content{border:0;border-top:1px solid var(--c-line);padding:18px 22px 20px;color:var(--c-text-2);font-size:15px;line-height:1.85;background:#F9FBFF;}
.faq-accordion .accordion-content p{margin-bottom:10px;}
.faq-accordion .accordion-content p:last-child{margin-bottom:0;}

/* ---------- CTA ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--c-primary);border-radius:var(--r-xl);padding:56px 48px;display:flex;align-items:center;justify-content:space-between;gap:40px;box-shadow:var(--sh-2);}
.cta-band::after{content:"";position:absolute;right:-60px;bottom:-70px;width:300px;height:300px;background-image:radial-gradient(rgba(255,255,255,.5) 1.2px,transparent 1.2px);background-size:15px 15px;opacity:.14;pointer-events:none;}
.cta-copy{position:relative;z-index:1;max-width:560px;}
.cta-copy h2{color:#fff;font-size:30px;line-height:1.35;margin-bottom:12px;}
.cta-copy p{color:rgba(255,255,255,.82);font-size:16px;line-height:1.8;margin:0;}
.cta-action{position:relative;z-index:1;flex:0 0 auto;text-align:right;}
.cta-note{margin-top:12px;font-size:12px;line-height:1.6;color:rgba(255,255,255,.7);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-text);color:rgba(255,255,255,.72);padding-top:8px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-grid.pad-x{padding-top:64px;padding-bottom:40px;}
.site-footer .brand-name{color:#fff;}
.site-footer .brand-sub{color:rgba(255,255,255,.58);}
.site-footer .brand-mark{background:var(--c-primary);border:1px solid rgba(255,255,255,.14);}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:320px;margin:16px 0 18px;}
.footer-status{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);font-variant-numeric:tabular-nums;}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.2px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;margin:0;}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.68);}
.footer-col ul a:hover{color:#fff;text-decoration:underline;}
.footer-col p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);margin-bottom:10px;}
.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;}
.footer-bottom p{margin:0;font-size:13px;color:rgba(255,255,255,.56);}
.footer-disclaimer{font-size:12px;color:rgba(255,255,255,.42);}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .section{padding:72px 0;}
  .header-inner{flex-wrap:wrap;row-gap:10px;}
  .seg-nav{order:3;width:100%;margin:0;justify-content:flex-start;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;box-shadow:none;border-color:var(--c-line);}
  .seg-nav::-webkit-scrollbar{display:none;}
  .header-actions{margin-left:auto;}
  .header-actions .text-link{display:none;}
  .nav-toggle{display:inline-flex;}
  .page-head{padding:56px 0 48px;}
  .page-head h1{font-size:34px;}
  .split-row{grid-template-columns:1fr;gap:28px;}
  .split-row.is-reverse .split-media{order:0;}
  .split-row + .split-row{margin-top:56px;padding-top:56px;}
  .step-row{grid-template-columns:1fr;gap:16px;}
  .step-card::after{display:none;}
  .faq-grid{grid-template-columns:1fr;gap:32px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px 28px;gap:24px;}
  .cta-action{text-align:left;width:100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-grid.pad-x{padding-top:48px;padding-bottom:32px;}
}
@media (max-width:639px){
  .rl-container{padding-left:20px;padding-right:20px;}
  .topbar{display:none;}
  .section{padding:56px 0;}
  .brand-mark{width:36px;height:36px;}
  .brand-name{font-size:16px;}
  .brand-sub{font-size:11px;}
  .btn-sm{display:none;}
  .page-head{padding:44px 0 40px;}
  .page-head h1{font-size:29px;line-height:1.3;}
  .page-head .lead{font-size:16px;}
  .section-head h2,.split-body h2,.faq-aside h2,.cta-copy h2{font-size:24px;}
  .split-body > p,.page-head .lead{max-width:none;}
  .cta-band{padding:32px 22px;border-radius:16px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .anchor-label{display:none;}
  .anchor-inner{padding-top:8px;padding-bottom:8px;}
  .anchor-scroll{mask-image:linear-gradient(90deg,transparent 0,#000 16px,#000 calc(100% - 16px),transparent 100%);-webkit-mask-image:linear-gradient(90deg,transparent 0,#000 16px,#000 calc(100% - 16px),transparent 100%);}
}

/* roulang page: category2 */
:root{
  --blue:#1F4B99;
  --blue-dark:#163A7A;
  --blue-soft:#E7EEFA;
  --gold:#E8A33D;
  --gold-soft:#FDF3E3;
  --gold-text:#A96A15;
  --page:#F6F8FC;
  --card:#FFFFFF;
  --line:#E2E8F1;
  --ink:#16233A;
  --ink-2:#5A6B85;
  --ink-3:#8A98AC;
  --ok:#2E9E6B;
  --r-lg:14px;
  --r-md:10px;
  --r-pill:999px;
  --r-cta:20px;
  --sh1:0 1px 2px rgba(22,58,122,.06);
  --sh2:0 8px 24px -12px rgba(22,58,122,.22);
  --sh3:0 16px 36px -16px rgba(22,58,122,.28);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:var(--blue);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease;}
a:hover{color:var(--blue-dark);}
img{max-width:100%;display:block;border:0;}
button{font-family:inherit;}
a:focus-visible,button:focus-visible,.btn:focus-visible,input:focus-visible{
  outline:2px solid var(--blue);
  outline-offset:2px;
  border-radius:10px;
}
.rl-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.pad-x{padding-left:0;padding-right:0;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 顶部公告条 ---------- */
.topbar{
  background:var(--blue-soft);
  border-bottom:1px solid #D8E3F5;
  height:32px;
  overflow:hidden;
}
.topbar-inner{
  display:flex;align-items:center;justify-content:center;gap:10px;
  height:32px;font-size:12px;line-height:32px;color:var(--blue-dark);
}
.topbar-inner .badge-dot{width:8px;height:8px;border-radius:50%;background:var(--ok);border:1px solid #fff;flex:0 0 auto;}
.topbar-inner .tb-text{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.topbar-inner .tb-arrow{color:var(--blue);font-weight:600;}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#FFFFFF;
  border-bottom:1px solid var(--line);
  transition:box-shadow .18s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh1);}
.header-inner{
  display:flex;align-items:center;gap:24px;
  height:72px;
  transition:height .18s ease;
}
.site-header.is-scrolled .header-inner{height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:10px;background:var(--blue-dark);
  display:grid;place-items:center;flex:0 0 auto;box-shadow:var(--sh1);
}
.brand-mark svg{width:22px;height:22px;display:block;}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-name{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:-.2px;}
.brand-sub{font-size:11.5px;color:var(--ink-3);letter-spacing:.02em;}
.seg-nav{
  display:flex;align-items:center;gap:2px;
  background:#FFFFFF;border:1px solid var(--line);border-radius:var(--r-pill);
  padding:4px;margin:0 auto;
}
.seg-chip{
  display:inline-flex;align-items:center;
  padding:8px 16px;border-radius:var(--r-pill);
  font-size:14px;line-height:1.5;color:var(--ink-2);white-space:nowrap;
  transition:background-color .18s ease,color .18s ease;
}
.seg-chip:hover{background:var(--blue-soft);color:var(--blue);}
.seg-chip.is-active{background:var(--blue-soft);color:var(--blue);font-weight:600;}
.header-actions{display:flex;align-items:center;gap:16px;flex:0 0 auto;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--r-md);
  font-size:14px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .12s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--blue);color:#FFFFFF;border-color:var(--blue);}
.btn-primary:hover{background:var(--blue-dark);border-color:var(--blue-dark);color:#FFFFFF;}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:#FFFFFF;color:var(--blue);border-color:var(--line);}
.btn-ghost:hover{background:var(--blue-soft);border-color:#C9D8F0;color:var(--blue-dark);}
.btn-ghost:active{transform:translateY(1px);}
.btn-light{background:#FFFFFF;color:var(--blue-dark);border-color:#FFFFFF;}
.btn-light:hover{background:var(--blue-soft);color:var(--blue-dark);}
.btn-light:active{transform:translateY(1px);}
.link-arrow{
  display:inline-flex;align-items:center;gap:4px;
  font-size:14px;font-weight:500;color:var(--blue);
}
.link-arrow::after{content:"→";transition:transform .18s ease;display:inline-block;}
.link-arrow:hover{color:var(--blue-dark);text-decoration:underline;}
.link-arrow:hover::after{transform:translateX(2px);}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:var(--r-md);
  background:#FFFFFF;border:1px solid var(--line);cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--blue-dark);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--blue-dark);border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* 移动端抽屉 */
.mobile-drawer{
  position:fixed;inset:0;z-index:90;background:#FFFFFF;
  transform:translateX(100%);transition:transform .24s ease;
  display:flex;flex-direction:column;overflow-y:auto;
  visibility:hidden;
}
.mobile-drawer.is-open{transform:translateX(0);visibility:visible;}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 20px;border-bottom:1px solid var(--line);
}
.drawer-close{
  width:44px;height:44px;border-radius:var(--r-md);border:1px solid var(--line);
  background:#FFFFFF;color:var(--blue-dark);font-size:20px;line-height:1;cursor:pointer;
}
.drawer-body{padding:20px;}
.drawer-body .drawer-label{font-size:12px;color:var(--ink-3);letter-spacing:.08em;margin-bottom:10px;}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 16px;border-radius:var(--r-md);border:1px solid var(--line);
  margin-bottom:10px;font-size:15px;color:var(--ink);background:#FFFFFF;
}
.drawer-link:hover{background:var(--blue-soft);color:var(--blue);border-color:#C9D8F0;}
.drawer-link.is-active{background:var(--blue-soft);color:var(--blue);font-weight:600;border-color:#C9D8F0;}
.drawer-link::after{content:"›";color:var(--ink-3);font-size:18px;}
.drawer-foot{
  margin-top:auto;padding:20px;border-top:1px solid var(--line);
  background:#FFFFFF;
}
.drawer-foot .btn{width:100%;}
.drawer-note{margin-top:10px;font-size:12px;color:var(--ink-3);text-align:center;}

/* ---------- 页头 ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:var(--blue-soft);
  border-bottom:1px solid var(--line);
  padding:48px 0 56px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-2.png);
  background-size:cover;background-position:center;
  opacity:.10;
}
.page-hero::after{
  content:"";position:absolute;right:-40px;bottom:-40px;width:420px;height:280px;
  background-image:radial-gradient(rgba(31,75,153,.9) 1.6px,transparent 1.7px);
  background-size:26px 26px;
  opacity:.06;
  pointer-events:none;
}
.page-hero .rl-container{position:relative;z-index:1;}
.crumbs{font-size:13px;color:var(--ink-3);margin-bottom:20px;display:flex;flex-wrap:wrap;align-items:center;gap:6px;}
.crumbs a{color:var(--ink-2);}
.crumbs a:hover{color:var(--blue);text-decoration:underline;}
.crumbs .sep{color:#B7C4D8;}
.crumbs .current{color:var(--ink-3);}
.chip{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:12px;line-height:1.6;font-weight:500;
  background:var(--blue-soft);color:var(--blue);
}
.chip-gold{background:var(--gold-soft);color:var(--gold-text);}
.page-hero h1{
  margin-top:16px;
  font-size:42px;line-height:1.25;font-weight:700;letter-spacing:-.5px;color:var(--ink);
}
.page-hero h1 .h1-sep{color:var(--gold);padding:0 6px;font-weight:600;}
.hero-lead{
  margin-top:16px;font-size:18px;line-height:1.8;color:var(--ink-2);max-width:38em;
}
.hero-meta{
  margin-top:24px;display:flex;flex-wrap:wrap;gap:28px;
  font-size:14px;color:var(--ink-2);
}
.hero-meta strong{color:var(--blue);font-weight:700;font-size:20px;margin-right:6px;}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section-alt{background:#FFFFFF;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:640px;margin-bottom:40px;}
.section-head h2{
  font-size:30px;line-height:1.35;font-weight:700;color:var(--ink);letter-spacing:-.3px;
  position:relative;padding-left:16px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:4px;height:22px;border-radius:2px;background:var(--gold);
}
.section-head p{margin-top:12px;font-size:15px;line-height:1.8;color:var(--ink-2);}

/* ---------- 安全要点卡片 ---------- */
.card-grid{margin-bottom:-24px;}
.card-grid > .cell{margin-bottom:24px;}
.info-card{
  height:100%;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--sh1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  display:flex;flex-direction:column;
}
.info-card:hover{transform:translateY(-2px);box-shadow:var(--sh3);border-color:#CFDCF0;}
.card-num{
  width:44px;height:44px;border-radius:12px;
  background:var(--blue-soft);color:var(--blue);
  display:grid;place-items:center;
  font-size:16px;font-weight:700;font-variant-numeric:tabular-nums;
  margin-bottom:18px;
}
.info-card.is-key .card-num{background:var(--gold-soft);color:var(--gold-text);}
.info-card h3{font-size:18px;line-height:1.5;font-weight:600;color:var(--ink);margin-bottom:12px;}
.info-card p{font-size:15px;line-height:1.75;color:var(--ink-2);margin-bottom:20px;}
.info-card .card-link{margin-top:auto;font-size:14px;font-weight:500;}
.card-tag{
  display:inline-block;padding:2px 10px;border-radius:var(--r-pill);
  background:var(--gold-soft);color:var(--gold-text);
  font-size:12px;line-height:1.7;margin-bottom:12px;
}

/* ---------- 时间线 ---------- */
.timeline-layout{display:grid;grid-template-columns:1.45fr .8fr;gap:56px;align-items:start;}
.timeline{position:relative;padding-left:36px;}
.timeline::before{
  content:"";position:absolute;left:7px;top:8px;bottom:8px;width:2px;background:var(--line);border-radius:2px;
}
.tl-item{position:relative;padding-bottom:34px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:-34px;top:7px;
  width:12px;height:12px;border-radius:50%;
  background:#FFFFFF;border:2px solid var(--blue);
}
.tl-item.is-key::before{background:var(--gold);border-color:var(--gold);}
.tl-stage{
  display:inline-block;font-size:12px;line-height:1.7;color:var(--blue);
  background:var(--blue-soft);border-radius:var(--r-pill);padding:2px 10px;margin-bottom:8px;
}
.tl-item.is-key .tl-stage{background:var(--gold-soft);color:var(--gold-text);}
.tl-item h3{font-size:18px;line-height:1.5;font-weight:600;color:var(--ink);margin-bottom:8px;}
.tl-item p{font-size:15px;line-height:1.75;color:var(--ink-2);}
.tl-time{font-size:13px;color:var(--ink-3);font-variant-numeric:tabular-nums;margin-top:6px;}
.timeline-aside{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh2);
}
.timeline-aside img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
}
.timeline-aside .aside-body{padding:24px;}
.timeline-aside h3{font-size:16px;font-weight:600;color:var(--ink);margin-bottom:8px;}
.timeline-aside p{font-size:14px;line-height:1.8;color:var(--ink-2);}
.aside-status{
  display:flex;align-items:center;gap:8px;margin-top:16px;
  font-size:12.5px;color:var(--ink-3);
}
.badge-dot{width:8px;height:8px;border-radius:50%;background:var(--ok);border:1px solid #fff;display:inline-block;flex:0 0 auto;}

/* ---------- 对照表 ---------- */
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border-radius:var(--r-lg);}
.compare-table{
  width:100%;min-width:560px;border-collapse:separate;border-spacing:0;margin:0;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
}
.compare-table thead th{
  background:var(--blue-soft);color:var(--blue-dark);
  font-size:14px;font-weight:600;line-height:1.6;
  padding:16px 22px;text-align:left;border-bottom:1px solid var(--line);
}
.compare-table tbody td{
  padding:16px 22px;border-bottom:1px solid var(--line);
  font-size:15px;line-height:1.75;color:var(--ink-2);vertical-align:top;
}
.compare-table tbody td:first-child{
  width:36%;color:var(--ink);font-weight:600;
  background:#FBFCFE;
}
.compare-table tbody tr:last-child td{border-bottom:none;}
.compare-table tbody tr:hover td{background:#F9FBFF;}
.compare-table tbody tr:hover td:first-child{background:#F2F6FD;}
.table-note{margin-top:16px;font-size:13px;color:var(--ink-3);line-height:1.8;}

/* ---------- 行动区 ---------- */
.cta-section{padding:0 0 96px;}
.cta-band{
  position:relative;overflow:hidden;
  background:var(--blue);border-radius:var(--r-cta);
  padding:56px 48px;color:#FFFFFF;
  display:flex;align-items:center;justify-content:space-between;gap:40px;
  box-shadow:var(--sh2);
}
.cta-band::after{
  content:"";position:absolute;right:-30px;bottom:-40px;width:400px;height:240px;
  background-image:radial-gradient(rgba(255,255,255,.9) 1.5px,transparent 1.6px);
  background-size:24px 24px;opacity:.10;pointer-events:none;
}
.cta-content{position:relative;z-index:1;max-width:600px;}
.cta-band h2{font-size:30px;line-height:1.35;font-weight:700;color:#FFFFFF;letter-spacing:-.3px;}
.cta-band p{margin-top:12px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.82);}
.cta-action{position:relative;z-index:1;flex:0 0 auto;text-align:center;}
.cta-action .btn{min-width:220px;}
.cta-action .cta-note{margin-top:12px;font-size:12px;color:rgba(255,255,255,.7);line-height:1.7;}

/* ---------- 页脚 ---------- */
.site-footer{background:#16233A;color:#B9C6DA;padding:72px 0 0;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;
  padding-bottom:48px;
}
.footer-brand .brand{margin-bottom:16px;}
.site-footer .brand-name{color:#FFFFFF;}
.site-footer .brand-sub{color:#9FB0C8;}
.footer-desc{font-size:14px;line-height:1.8;color:#9FB0C8;max-width:34em;}
.footer-status{
  display:inline-flex;align-items:center;gap:8px;margin-top:16px;
  font-size:12.5px;color:#9FB0C8;
}
.footer-col h3{font-size:14px;font-weight:600;color:#FFFFFF;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:#B9C6DA;}
.footer-col a:hover{color:#FFFFFF;text-decoration:underline;}
.footer-col p{font-size:13.5px;line-height:1.85;color:#8FA1BA;margin-bottom:10px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8FA1BA;
}
.footer-disclaimer{font-size:12px;color:#7E90A9;}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .page-hero h1{font-size:38px;}
  .timeline-layout{gap:40px;}
}
@media (max-width:1023.98px){
  .seg-nav{display:none;}
  .header-actions{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{height:64px;gap:12px;}
  .site-header.is-scrolled .header-inner{height:60px;}
  .section{padding:72px 0;}
  .cta-section{padding-bottom:72px;}
  .page-hero h1{font-size:34px;}
  .timeline-layout{grid-template-columns:1fr;gap:32px;}
  .timeline-aside{max-width:520px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:44px 36px;gap:28px;}
  .cta-action{text-align:left;width:100%;}
  .cta-action .btn{width:100%;}
}
@media (max-width:639.98px){
  .rl-container{padding:0 20px;}
  .topbar{display:none;}
  .brand-name{font-size:16px;}
  .brand-sub{font-size:11px;}
  .page-hero{padding:32px 0 40px;}
  .page-hero h1{font-size:28px;line-height:1.3;}
  .hero-lead{font-size:16px;margin-top:12px;}
  .hero-meta{gap:18px;font-size:13px;margin-top:18px;}
  .hero-meta strong{font-size:17px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:28px;}
  .section-head h2{font-size:24px;}
  .info-card{padding:24px;}
  .timeline{padding-left:30px;}
  .timeline::before{left:5px;}
  .tl-item::before{left:-29px;top:6px;width:12px;height:12px;}
  .compare-table{min-width:520px;}
  .compare-table thead th,.compare-table tbody td{padding:14px 16px;font-size:14px;}
  .cta-band{padding:36px 24px;border-radius:16px;}
  .cta-band h2{font-size:24px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:36px;}
  .site-footer{padding-top:56px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}