/* roulang page: index */
/* ===================== 设计变量 ===================== */
:root{
  --pri:#1B3B6F;
  --pri-d:#142C55;
  --pri-l:#EEF3FA;
  --acc:#169C9C;
  --acc-l:#E4F4F4;
  --dark:#0F1E38;
  --tx:#101A28;
  --bd:#4A5768;
  --mu:#8695A8;
  --line:#E3E9F2;
  --page:#F7F9FC;
  --card:#FFFFFF;
  --ph:#A7B3C2;
  --err:#C2483F;

  --r-card:14px;
  --r-img:12px;
  --r-lg:16px;
  --r-btn:10px;
  --r-pill:999px;

  --sh:0 1px 2px rgba(16,26,40,.04), 0 8px 24px -12px rgba(16,26,40,.10);
  --sh-h:0 12px 32px -12px rgba(27,59,111,.18);

  --nav-h:72px;

  --bs-primary:#1B3B6F;
  --bs-link-color:#1B3B6F;
  --bs-link-hover-color:#142C55;
  --bs-border-radius:.625rem;
  --bs-body-color:#4A5768;
  --bs-body-bg:#F7F9FC;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --bs-body-font-size:16px;
}

/* ===================== 基础重置 ===================== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--bd);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;background:#EEF2F7}
a{color:var(--pri);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--pri-d)}
button{font-family:inherit;cursor:pointer}
h1,h2,h3,h4,h5{margin:0;color:var(--tx);letter-spacing:-.01em;font-weight:600}
p{margin:0 0 1.1em}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--acc);outline-offset:2px;border-radius:4px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* 覆盖 Bootstrap 默认观感 */
.container{
  width:100%;
  padding-right:20px;
  padding-left:20px;
  margin-right:auto;
  margin-left:auto;
  max-width:1200px;
}
@media (min-width:1400px){
  .container{max-width:1280px}
}
.btn{box-shadow:none!important;border-radius:var(--r-btn)}
.card{border-radius:var(--r-card);border:1px solid var(--line);box-shadow:var(--sh)}

/* ===================== 通用组件 ===================== */
.section{padding:104px 0}
.section-sm{padding:72px 0}
.section-title{
  font-size:clamp(1.5rem,2.6vw,2.125rem);
  line-height:1.35;
  font-weight:600;
  color:var(--tx);
}
.section-sub{
  margin-top:14px;
  font-size:15px;
  color:var(--mu);
  line-height:1.75;
  max-width:520px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:30px;
  padding:0 14px;
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  background:#fff;
  font-size:12.5px;
  letter-spacing:.04em;
  color:var(--pri);
  font-weight:500;
}
.eyebrow::before{
  content:"";
  width:6px;height:6px;border-radius:50%;
  background:var(--acc);
}

.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;
  background:var(--pri);color:#fff;
  border:1px solid var(--pri);
  border-radius:var(--r-btn);
  font-size:15px;font-weight:500;
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-main:hover{background:var(--pri-d);border-color:var(--pri-d);color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px -10px rgba(27,59,111,.55)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;
  background:#fff;color:var(--pri);
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  font-size:15px;font-weight:500;
  transition:background .2s ease,border-color .2s ease,transform .2s ease;
}
.btn-ghost:hover{background:var(--pri-l);border-color:#C9D8EC;color:var(--pri-d);transform:translateY(-1px)}
.btn-pill-ghost{
  display:inline-flex;align-items:center;justify-content:center;
  height:38px;padding:0 18px;
  border:1px solid #CBD8EA;
  border-radius:var(--r-pill);
  color:var(--pri);font-size:14px;font-weight:500;
  background:transparent;
  transition:background .2s ease,border-color .2s ease;
}
.btn-pill-ghost:hover{background:var(--pri-l);border-color:#9FB8DA;color:var(--pri-d)}
.btn-sm-main{
  display:inline-flex;align-items:center;justify-content:center;
  height:40px;padding:0 20px;
  background:var(--pri);color:#fff;
  border-radius:var(--r-btn);
  font-size:14px;font-weight:500;
  border:1px solid var(--pri);
  transition:background .2s ease,transform .2s ease;
}
.btn-sm-main:hover{background:var(--pri-d);color:#fff;transform:translateY(-1px)}

.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:500;color:var(--pri);
  border-bottom:1px solid rgba(27,59,111,.35);
  padding-bottom:2px;
  transition:border-color .18s ease,color .18s ease;
}
.link-arrow:hover{border-color:var(--pri);color:var(--pri-d)}
.link-arrow svg{transition:transform .18s ease}
.link-arrow:hover svg{transform:translateX(3px)}

.badge-cat{
  display:inline-flex;align-items:center;
  height:24px;padding:0 10px;
  background:var(--pri-l);color:var(--pri);
  border-radius:var(--r-pill);
  font-size:12px;font-weight:500;letter-spacing:.02em;
}
.tag-pill{
  display:inline-flex;align-items:center;
  height:32px;padding:0 14px;
  background:#fff;border:1px solid var(--line);
  border-radius:var(--r-pill);
  font-size:13px;color:var(--bd);
}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* ===================== 顶部导航 ===================== */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid transparent;
  transition:height .2s ease,border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.site-header .nav-inner{
  height:var(--nav-h);
  display:flex;align-items:center;gap:20px;
  transition:height .2s ease;
}
.site-header.scrolled{
  border-bottom-color:var(--line);
  box-shadow:0 6px 20px -16px rgba(16,26,40,.35);
  background:#fff;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:var(--pri);
  color:#fff;font-size:16px;font-weight:600;
  display:flex;align-items:center;justify-content:center;
  letter-spacing:0;
}
.brand-text{
  display:flex;flex-direction:column;line-height:1.15;
  font-size:15.5px;font-weight:600;color:var(--tx);
  letter-spacing:.02em;
}
.brand-text em{
  font-style:normal;font-size:11.5px;font-weight:400;
  color:var(--mu);letter-spacing:.06em;margin-top:2px;
}
.nav-main{
  display:flex;align-items:center;
  margin-left:8px;
  flex:1 1 auto;
  min-width:0;
}
.nav-main a{
  position:relative;
  display:inline-flex;align-items:center;
  height:var(--nav-h);
  padding:0 15px;
  font-size:14.5px;font-weight:500;
  color:var(--bd);letter-spacing:.02em;
  white-space:nowrap;
  transition:color .18s ease;
}
.nav-main a+a::before{
  content:"";
  position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:1px;height:14px;background:var(--line);
}
.nav-main a:hover{color:var(--pri)}
.nav-main a.active{color:var(--pri)}
.nav-main a.active::after{
  content:"";
  position:absolute;left:15px;right:15px;bottom:20px;
  height:2px;border-radius:2px;background:var(--pri);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line);background:#fff;border-radius:10px;
  align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:1.5px;background:var(--tx);position:relative}
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:1.5px;background:var(--tx);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-drawer{
  display:none;
  position:fixed;inset:var(--nav-h) 0 0 0;
  background:#fff;z-index:1029;
  padding:28px 24px 40px;
  overflow-y:auto;
}
.nav-drawer.open{display:block}
.nav-drawer a{
  display:block;
  font-size:20px;
  padding:16px 0;
  color:var(--tx);
  border-bottom:1px solid var(--line);
  font-weight:500;
}
.nav-drawer a.active{color:var(--pri)}
.nav-drawer .drawer-cta{margin-top:28px}

/* ===================== 二级锚点条 ===================== */
.anchor-bar{
  position:sticky;top:var(--nav-h);z-index:1020;
  background:rgba(247,249,252,.96);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.anchor-scroll{
  display:flex;align-items:center;gap:8px;
  overflow-x:auto;
  padding:10px 0;
  scrollbar-width:none;
}
.anchor-scroll::-webkit-scrollbar{display:none}
.anchor-scroll a{
  flex:0 0 auto;
  display:inline-flex;align-items:center;
  height:36px;padding:0 16px;
  border-radius:var(--r-pill);
  font-size:13.5px;color:var(--bd);
  transition:background .18s ease,color .18s ease;
  white-space:nowrap;
}
.anchor-scroll a:hover{background:#fff;color:var(--pri)}
.anchor-scroll a.active{background:var(--pri-l);color:var(--pri);font-weight:500}

/* ===================== Hero ===================== */
.hero{
  position:relative;
  padding:72px 0 88px;
  background:
    radial-gradient(760px 380px at 12% 8%, rgba(27,59,111,.07), transparent 62%),
    radial-gradient(circle at 1px 1px, rgba(27,59,111,.055) 1px, transparent 0) 0 0/22px 22px,
    var(--page);
  overflow:hidden;
}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:56px;
  align-items:center;
}
.hero h1{
  margin:22px 0 0;
  font-size:clamp(2rem,4.4vw,3.25rem);
  line-height:1.25;
  font-weight:600;
  letter-spacing:-.01em;
  color:var(--tx);
}
.hero h1 .hl{
  color:var(--pri);
  box-shadow:inset 0 -10px 0 var(--pri-l);
}
.hero-sub{
  margin-top:18px;
  font-size:16.5px;
  color:var(--bd);
  max-width:520px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.hero-metrics{
  display:flex;gap:0;margin-top:42px;
  border-top:1px solid var(--line);
  padding-top:24px;
}
.hero-metrics .m{
  flex:1 1 0;padding-right:20px;position:relative;
}
.hero-metrics .m+.m{padding-left:24px}
.hero-metrics .m+.m::before{
  content:"";position:absolute;left:0;top:4px;bottom:4px;width:1px;background:var(--line);
}
.hero-metrics b{
  display:block;
  font-size:26px;font-weight:600;color:var(--tx);
  font-variant-numeric:tabular-nums;line-height:1.2;
  letter-spacing:-.02em;
}
.hero-metrics span{display:block;font-size:13px;color:var(--mu);margin-top:6px}

.hero-visual{position:relative}
.hero-photo{
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh);
  border:1px solid var(--line);
}
.hero-photo img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
}
.login-card{
  position:absolute;
  right:-24px;bottom:-32px;
  width:302px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:0 18px 44px -20px rgba(16,26,40,.32);
  padding:22px 22px 20px;
}
.login-card h2{
  font-size:16px;font-weight:600;color:var(--tx);
  display:flex;align-items:center;gap:8px;
}
.login-card h2::before{
  content:"";width:8px;height:8px;border-radius:50%;background:var(--acc);
}
.login-card .lc-tip{
  margin:8px 0 16px;
  font-size:12.5px;color:var(--mu);line-height:1.65;
}
.field{margin-bottom:12px}
.field label{
  display:block;
  font-size:13px;font-weight:600;color:var(--pri);
  margin-bottom:6px;
}
.field input{
  width:100%;height:44px;
  padding:0 12px;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  background:#fff;
  font-size:14px;color:var(--tx);
  font-family:inherit;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field input::placeholder{color:var(--ph)}
.field input:focus{
  outline:none;
  border-color:var(--pri);
  box-shadow:0 0 0 3px rgba(27,59,111,.12);
}
.login-row{
  display:flex;align-items:center;justify-content:space-between;
  margin:4px 0 16px;
  font-size:12.5px;
}
.login-row label{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--mu);cursor:pointer;
}
.login-row input[type="checkbox"]{
  width:14px;height:14px;accent-color:var(--pri);
}
.login-row a{color:var(--pri);font-size:12.5px}
.login-card .btn-login{
  width:100%;height:44px;
  background:var(--pri);color:#fff;
  border:0;border-radius:var(--r-btn);
  font-size:14.5px;font-weight:500;
  transition:background .2s ease,transform .2s ease;
}
.login-card .btn-login:hover{background:var(--pri-d);transform:translateY(-1px)}
.login-foot{
  display:flex;justify-content:space-between;
  margin-top:14px;padding-top:12px;
  border-top:1px solid var(--line);
  font-size:12.5px;
}
.login-foot a{color:var(--bd)}
.login-foot a:hover{color:var(--pri)}

/* ===================== 卖点区 ===================== */
.value-grid{
  display:grid;
  grid-template-columns:minmax(0,4fr) minmax(0,7fr);
  gap:64px;
}
.value-aside{position:sticky;top:150px;align-self:start}
.value-aside .section-sub{margin-top:16px}
.value-list{border-top:1px solid var(--line)}
.value-item{
  position:relative;
  display:grid;
  grid-template-columns:72px 1fr;
  gap:20px;
  padding:26px 0 26px 18px;
  border-bottom:1px solid var(--line);
  transition:transform .22s ease,background .22s ease;
}
.value-item::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:2px;
  background:var(--pri);opacity:0;transition:opacity .22s ease;
}
.value-item:hover{transform:translateX(6px)}
.value-item:hover::before{opacity:1}
.value-item .idx{
  font-size:30px;font-weight:600;color:#C7D4E6;
  font-variant-numeric:tabular-nums;line-height:1;
  transition:color .22s ease;
}
.value-item:hover .idx{color:var(--acc)}
.value-item h3{
  font-size:17px;font-weight:600;color:var(--tx);
  display:flex;align-items:center;gap:10px;
}
.value-item h3 svg{flex:0 0 auto;color:var(--acc)}
.value-item p{margin:8px 0 0;font-size:14.5px;color:var(--bd);line-height:1.8;max-width:640px}

/* ===================== 演示区 ===================== */
.demo-block{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:56px;
  align-items:center;
  padding:52px 0;
  border-bottom:1px solid var(--line);
}
.demo-block:last-child{border-bottom:0;padding-bottom:0}
.demo-block.reverse .demo-media{order:2}
.demo-media{
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--sh);
}
.demo-media img{width:100%;aspect-ratio:16/11;object-fit:cover}
.demo-body h3{font-size:20px;font-weight:600;color:var(--tx);margin-bottom:12px}
.demo-body>p{font-size:15px;color:var(--bd);max-width:520px}
.demo-points{margin:18px 0 24px;border-top:1px solid var(--line)}
.demo-points li{
  display:flex;gap:10px;align-items:flex-start;
  padding:12px 0;
  border-bottom:1px solid var(--line);
  font-size:14.5px;color:var(--bd);
}
.demo-points li svg{flex:0 0 auto;margin-top:5px;color:var(--acc)}

/* ===================== 证据区 ===================== */
.proof{
  background:var(--dark);
  color:rgba(255,255,255,.72);
  padding:88px 0;
}
.proof h2{color:#fff;font-size:clamp(1.5rem,2.6vw,2.125rem);line-height:1.35}
.proof .proof-sub{color:rgba(255,255,255,.6);margin-top:12px;font-size:15px;max-width:560px}
.proof-metrics{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:0;
  margin-top:44px;
  border-top:1px solid rgba(255,255,255,.12);
  border-bottom:1px solid rgba(255,255,255,.12);
}
.proof-metrics .pm{
  padding:30px 24px;
  border-right:1px solid rgba(255,255,255,.12);
}
.proof-metrics .pm:last-child{border-right:0}
.proof-metrics b{
  display:block;
  font-size:40px;font-weight:600;color:#fff;
  line-height:1.1;letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;
}
.proof-metrics b small{font-size:18px;font-weight:500;margin-left:4px}
.proof-metrics span{display:block;margin-top:8px;font-size:13px;color:rgba(255,255,255,.62)}
.proof-logos{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  margin-top:36px;
}
.proof-logos .lg{
  height:40px;flex:1 1 140px;
  border:1px solid rgba(255,255,255,.14);
  border-radius:8px;
  display:flex;align-items:center;justify-content:center;
  font-size:12.5px;color:rgba(255,255,255,.45);
  letter-spacing:.06em;
}
.proof-quotes{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;margin-top:36px;
}
.quote{
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:0 0 0 1px rgba(255,255,255,.04);
}
.quote p{
  margin:0 0 16px;font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.82);
}
.quote .who{font-size:12.5px;color:rgba(255,255,255,.5)}

/* ===================== 价格区 ===================== */
.price-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1.35fr) minmax(0,1fr);
  gap:24px;
  align-items:start;
  margin-top:48px;
}
.price-card{
  position:relative;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px 24px;
  box-shadow:var(--sh);
  transition:transform .22s ease,box-shadow .22s ease;
}
.price-card:hover{transform:translateY(-3px);box-shadow:var(--sh-h)}
.price-card.featured{
  border-top:3px solid var(--pri);
  padding:36px 28px;
  transform:translateY(-8px);
  box-shadow:0 18px 44px -22px rgba(27,59,111,.35);
}
.price-card.featured:hover{transform:translateY(-11px)}
.price-card .pc-flag{
  position:absolute;top:-12px;right:20px;
  height:24px;padding:0 12px;
  display:inline-flex;align-items:center;
  background:var(--pri);color:#fff;
  border-radius:var(--r-pill);
  font-size:12px;font-weight:500;
}
.price-card h3{font-size:16px;font-weight:600;color:var(--tx)}
.price-card .pc-desc{font-size:13px;color:var(--mu);margin:8px 0 18px}
.price-card .pc-price{
  font-size:34px;font-weight:600;color:var(--pri);
  font-variant-numeric:tabular-nums;line-height:1.1;
  letter-spacing:-.02em;
}
.price-card.featured .pc-price{font-size:42px}
.price-card .pc-price small{font-size:14px;font-weight:400;color:var(--mu);margin-left:6px}
.price-card ul{margin:20px 0 26px;border-top:1px solid var(--line)}
.price-card ul li{
  display:flex;gap:9px;align-items:flex-start;
  padding:11px 0;
  border-bottom:1px solid var(--line);
  font-size:14px;color:var(--bd);
}
.price-card ul li svg{flex:0 0 auto;margin-top:5px;color:var(--acc)}
.price-card .pc-btn{
  width:100%;height:44px;
  display:flex;align-items:center;justify-content:center;
  border-radius:var(--r-btn);
  font-size:14.5px;font-weight:500;
  border:1px solid var(--line);
  background:#fff;color:var(--pri);
  transition:background .2s ease,border-color .2s ease,color .2s ease;
}
.price-card .pc-btn:hover{background:var(--pri-l);border-color:#C9D8EC}
.price-card.featured .pc-btn{
  background:var(--pri);color:#fff;border-color:var(--pri);
}
.price-card.featured .pc-btn:hover{background:var(--pri-d);border-color:var(--pri-d)}

/* ===================== FAQ ===================== */
.faq-grid{
  display:grid;
  grid-template-columns:minmax(0,4fr) minmax(0,6fr);
  gap:64px;
}
.faq-aside{position:sticky;top:150px;align-self:start}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;
  background:transparent;border:0;
  text-align:left;
  font-size:16px;font-weight:500;color:var(--tx);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--pri)}
.faq-item.open .faq-q{color:var(--pri)}
.faq-icon{
  flex:0 0 auto;
  width:22px;height:22px;position:relative;
}
.faq-icon::before,
.faq-icon::after{
  content:"";position:absolute;background:currentColor;border-radius:1px;
  transition:transform .2s ease,opacity .2s ease;
}
.faq-icon::before{left:0;top:10px;width:22px;height:1.6px}
.faq-icon::after{left:10px;top:0;width:1.6px;height:22px}
.faq-item.open .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .2s ease;
}
.faq-a p{
  margin:0;padding:0 40px 22px 0;
  font-size:14.5px;color:var(--bd);line-height:1.85;max-width:720px;
}

/* ===================== 最新信息 ===================== */
.news-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  padding-bottom:24px;
  border-bottom:1px solid var(--line);
}
.news-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
  margin-top:32px;
}
.news-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh);
  display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--sh-h)}
.news-cover{
  position:relative;display:block;overflow:hidden;background:#EEF2F7;
}
.news-cover img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  transition:transform .35s ease;
}
.news-card:hover .news-cover img{transform:scale(1.03)}
.news-cover .badge-cat{
  position:absolute;left:12px;top:12px;
  background:rgba(238,243,250,.94);
  backdrop-filter:blur(4px);
}
.news-body{padding:20px;display:flex;flex-direction:column;flex:1 1 auto}
.news-body h3{
  font-size:16px;font-weight:600;line-height:1.55;color:var(--tx);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .2s ease;
}
.news-card:hover .news-body h3{color:var(--pri)}
.news-body .n-sum{
  margin-top:10px;font-size:14px;color:var(--mu);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  flex:1 1 auto;
}
.news-foot{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:18px;padding-top:14px;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--mu);
  font-variant-numeric:tabular-nums;
}
.news-foot svg{color:var(--pri);transition:transform .2s ease}
.news-card:hover .news-foot svg{transform:translateX(4px)}
.news-empty{
  margin-top:32px;
  border:1px dashed #D2DCEA;
  border-radius:var(--r-card);
  background:#fff;
  padding:48px 24px;
  text-align:center;
}
.news-empty svg{color:#B9C7DA;margin:0 auto 14px}
.news-empty p{font-size:14.5px;color:var(--mu);margin:0 0 20px}

/* ===================== CTA 条 ===================== */
.cta-band{background:var(--pri-l);padding:56px 0}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-inner h2{font-size:clamp(1.35rem,2.2vw,1.75rem);line-height:1.4;color:var(--tx)}
.cta-inner p{margin:10px 0 0;font-size:14.5px;color:var(--bd)}
.cta-btns{display:flex;gap:12px;flex-wrap:wrap}

/* ===================== 分类交叉链接 ===================== */
.cross{
  padding:64px 0 80px;
  border-top:1px solid var(--line);
}
.cross-head{
  font-size:15px;font-weight:600;color:var(--tx);margin-bottom:20px;
}
.cross-list{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:0;
  border-top:1px solid var(--line);
}
.cross-list a{
  display:block;
  padding:22px 20px 22px 0;
  border-bottom:1px solid var(--line);
  transition:transform .2s ease;
}
.cross-list a:hover{transform:translateX(4px)}
.cross-list a strong{
  display:block;font-size:15px;font-weight:600;color:var(--tx);margin-bottom:6px;
  transition:color .2s ease;
}
.cross-list a:hover strong{color:var(--pri)}
.cross-list a span{font-size:13.5px;color:var(--mu);line-height:1.7}

/* ===================== 页脚 ===================== */
.site-footer{
  background:#F2F5FA;
  border-top:1px solid var(--line);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.5fr) minmax(0,1fr) minmax(0,1fr) minmax(0,1.2fr);
  gap:40px;
}
.f-brand .brand{margin-bottom:16px}
.f-brand p{font-size:13.5px;color:var(--bd);line-height:1.8;max-width:280px;margin:0 0 14px}
.f-col h4{
  font-size:14px;font-weight:600;color:var(--tx);margin-bottom:16px;
  letter-spacing:.02em;
}
.f-col ul li{margin-bottom:10px}
.f-col ul li a{font-size:13.5px;color:var(--bd)}
.f-col ul li a:hover{color:var(--pri)}
.f-contact li{
  display:flex;gap:10px;font-size:13.5px;color:var(--bd);
  margin-bottom:12px;line-height:1.7;
}
.f-contact li svg{flex:0 0 auto;margin-top:5px;color:var(--pri)}
.f-contact li .num{font-variant-numeric:tabular-nums}
.footer-bottom{
  margin-top:56px;
  border-top:1px solid var(--line);
  padding:20px 0 24px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{margin:0;font-size:12.5px;color:var(--mu)}
.footer-bottom .f-social{display:flex;gap:14px}
.footer-bottom .f-social a{color:var(--mu)}
.footer-bottom .f-social a:hover{color:var(--pri)}

/* ===================== 浮动 CTA ===================== */
.float-cta{
  position:fixed;right:24px;bottom:28px;z-index:1040;
  display:inline-flex;align-items:center;gap:8px;
  height:44px;padding:0 20px;
  background:var(--pri);color:#fff;
  border-radius:var(--r-pill);
  font-size:14px;font-weight:500;
  box-shadow:0 12px 28px -12px rgba(27,59,111,.6);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease,background .2s ease;
}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta:hover{background:var(--pri-d);color:#fff;transform:translateY(-2px)}

/* ===================== 响应式 ===================== */
@media (max-width:1399.98px){
  .login-card{right:0;bottom:-24px;width:290px}
}
@media (max-width:1199.98px){
  .nav-main a{padding:0 11px;font-size:14px}
  .nav-main a.active::after{left:11px;right:11px}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .hero-grid{gap:40px}
  .value-grid,.faq-grid{gap:44px}
  .price-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .price-card.featured{padding:32px 22px}
  .price-card .pc-price{font-size:30px}
  .price-card.featured .pc-price{font-size:36px}
}
@media (max-width:991.98px){
  .section{padding:72px 0}
  .nav-main,.nav-actions{display:none}
  .nav-toggle{display:flex}
  .hero{padding:52px 0 72px}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero-visual{padding-bottom:0}
  .login-card{position:static;width:100%;margin-top:24px;right:auto;bottom:auto}
  .hero-photo img{aspect-ratio:16/9}
  .value-grid{grid-template-columns:1fr;gap:32px}
  .value-aside{position:static}
  .faq-grid{grid-template-columns:1fr;gap:28px}
  .faq-aside{position:static}
  .demo-block{grid-template-columns:1fr;gap:28px;padding:40px 0}
  .demo-block.reverse .demo-media{order:0}
  .proof-metrics{grid-template-columns:repeat(2,minmax(0,1fr))}
  .proof-metrics .pm:nth-child(2){border-right:0}
  .proof-metrics .pm:nth-child(1),
  .proof-metrics .pm:nth-child(2){border-bottom:1px solid rgba(255,255,255,.12)}
  .proof-quotes{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
  .cross-list{grid-template-columns:1fr}
}
@media (max-width:767.98px){
  .section{padding:56px 0}
  .section-sm{padding:48px 0}
  .hero h1{font-size:1.75rem}
  .hero-metrics{flex-wrap:wrap;gap:20px}
  .hero-metrics .m{flex:1 1 40%;padding-right:0}
  .hero-metrics .m+.m{padding-left:0}
  .hero-metrics .m+.m::before{display:none}
  .hero-metrics b{font-size:22px}
  .news-grid{grid-template-columns:1fr}
  .price-grid{grid-template-columns:1fr}
  .price-card.featured{order:-1;transform:none;padding:28px 22px}
  .price-card.featured:hover{transform:translateY(-3px)}
  .proof{padding:64px 0}
  .proof-metrics{grid-template-columns:repeat(2,minmax(0,1fr))}
  .proof-metrics .pm{padding:22px 16px}
  .proof-metrics b{font-size:30px}
  .cta-inner{flex-direction:column;align-items:stretch}
  .cta-btns{flex-direction:column}
  .cta-btns a{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .float-cta{
    left:0;right:0;bottom:0;border-radius:12px 12px 0 0;
    justify-content:center;
    padding-bottom:env(safe-area-inset-bottom);
    height:52px;
  }
  .news-head{flex-direction:column;align-items:flex-start;gap:12px}
  .login-card{padding:20px 18px 18px}
}
@media (max-width:519.98px){
  .container{padding-left:16px;padding-right:16px}
  .hero-metrics .m{flex:1 1 100%}
  .value-item{grid-template-columns:52px 1fr;gap:14px}
  .value-item .idx{font-size:24px}
}

/* roulang page: article */
:root{
  --brand:#1B3B6F;
  --brand-dark:#142C55;
  --brand-tint:#EEF3FA;
  --accent:#169C9C;
  --accent-tint:#E4F4F4;
  --dark:#0F1E38;
  --ink:#101A28;
  --body:#4A5768;
  --muted:#8695A8;
  --line:#E3E9F2;
  --page:#F7F9FC;
  --card:#FFFFFF;
  --ph:#A7B3C2;
  --ph-bg:#EEF2F7;
  --danger:#C2483F;
  --r-card:14px;
  --r-img:12px;
  --r-lg:16px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,26,40,.04), 0 8px 24px -12px rgba(16,26,40,.10);
  --sh-2:0 12px 32px -12px rgba(27,59,111,.18);
  --ease:cubic-bezier(.4,0,.2,1);
  --bs-primary:#1B3B6F;
  --bs-link-color:#1B3B6F;
  --bs-link-hover-color:#142C55;
  --bs-border-radius:10px;
  --bs-body-color:#4A5768;
  --bs-body-bg:#F7F9FC;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",Inter,system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",Inter,system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--body);
  background:var(--page);
  padding-top:72px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;background:var(--ph-bg);}
a{color:var(--brand);text-decoration:none;transition:color .18s var(--ease);}
a:hover{color:var(--brand-dark);}
h1,h2,h3,h4{color:var(--ink);margin:0;font-weight:600;letter-spacing:-.01em;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
.num,.mono{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:1400px){.container{max-width:1280px;}}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid transparent;
  transition:height .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  backdrop-filter:saturate(180%) blur(8px);
}
.site-header .nav-inner{height:72px;display:flex;align-items:center;gap:26px;transition:height .2s var(--ease);}
.site-header.is-scrolled{background:#fff;border-bottom-color:var(--line);box-shadow:0 6px 20px -14px rgba(16,26,40,.28);}
.site-header.is-scrolled .nav-inner{height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;background:var(--brand);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:17px;font-weight:700;flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;color:var(--ink);font-weight:600;font-size:15px;letter-spacing:.01em;}
.brand-text em{font-style:normal;font-size:11px;font-weight:400;color:var(--muted);letter-spacing:.16em;}
.nav-main{display:flex;align-items:center;gap:0;margin-left:auto;}
.nav-main a{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 14px;
  font-size:14.5px;font-weight:500;letter-spacing:.02em;color:var(--body);white-space:nowrap;
}
.nav-main a+a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:1px;height:14px;background:var(--line);
}
.nav-main a:hover{color:var(--brand);}
.nav-main a.active{color:var(--brand);font-weight:600;}
.nav-main a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:8px;height:2px;border-radius:2px;background:var(--brand);
}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.btn-pill-ghost{
  display:inline-flex;align-items:center;justify-content:center;height:38px;padding:0 20px;
  border:1px solid var(--line);border-radius:var(--r-pill);color:var(--brand);
  font-size:14px;font-weight:500;background:#fff;transition:all .18s var(--ease);
}
.btn-pill-ghost:hover{border-color:var(--brand);background:var(--brand-tint);color:var(--brand-dark);}
.btn-sm-main{
  display:inline-flex;align-items:center;justify-content:center;height:38px;padding:0 18px;
  border-radius:var(--r-btn);background:var(--brand);color:#fff;font-size:14px;font-weight:500;
  transition:all .18s var(--ease);
}
.btn-sm-main:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:10px;
  position:relative;cursor:pointer;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:12px;width:18px;height:1.5px;background:var(--ink);content:"";transition:.2s var(--ease);
}
.nav-toggle span{top:21px;}
.nav-toggle span::before{top:-6px;left:0;}
.nav-toggle span::after{top:6px;left:0;}

@media (max-width:991px){
  .nav-main{
    position:fixed;top:72px;left:0;right:0;bottom:0;background:#fff;
    flex-direction:column;align-items:stretch;gap:0;padding:16px 20px 32px;margin:0;
    overflow-y:auto;transform:translateX(-100%);transition:transform .24s var(--ease);
  }
  .nav-main a{height:52px;font-size:19px;font-weight:500;padding:0;border-bottom:1px solid var(--line);}
  .nav-main a+a::before{display:none;}
  .nav-main a.active::after{left:0;right:auto;width:32px;bottom:12px;}
  .nav-actions .btn-pill-ghost{display:none;}
  .nav-actions{margin-left:auto;}
  .nav-toggle{display:block;margin-left:auto;}
  body.nav-open .nav-main{transform:translateX(0);}
  body.nav-open{overflow:hidden;}
  .btn-sm-main{padding:0 14px;font-size:13px;}
}
@media (max-width:520px){
  .brand-text em{display:none;}
  .btn-sm-main{display:none;}
}

/* ---------- breadcrumb ---------- */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line);}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:14px 0;font-size:13px;color:var(--muted);}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:#C7D2E0;}
.crumb .cur{color:var(--ink);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- article head ---------- */
.article-hero{background:#fff;padding:44px 0 34px;}
.article-hero .badge-line{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:18px;}
.badge-cat{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:var(--r-pill);
  background:var(--brand-tint);color:var(--brand);font-size:12.5px;font-weight:600;letter-spacing:.02em;
}
.badge-tag{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:var(--r-pill);
  border:1px solid var(--line);color:var(--body);font-size:12.5px;background:#fff;
}
.article-title{
  font-size:clamp(1.75rem,3.6vw,2.6rem);
  line-height:1.3;font-weight:600;letter-spacing:-.01em;max-width:20em;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:20px;
  font-size:13.5px;color:var(--muted);
}
.article-meta .item{display:inline-flex;align-items:center;gap:7px;}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C7D2E0;}
.article-meta svg{opacity:.85;}

/* ---------- layout ---------- */
.article-wrap{padding:48px 0 72px;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 336px;gap:52px;align-items:start;}
@media (max-width:1199px){.article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:36px;}}
@media (max-width:991px){.article-layout{grid-template-columns:minmax(0,1fr);gap:44px;}}
.article-main{max-width:760px;min-width:0;}

.article-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:40px 46px;
}
@media (max-width:767px){.article-card{padding:26px 20px;border-radius:12px;}}

/* ---------- body typography ---------- */
.article-body{font-size:16px;line-height:1.85;color:var(--body);}
.article-body>*:first-child{margin-top:0;}
.article-body p{margin:0 0 1.1em;}
.article-body h2{
  position:relative;font-size:1.5rem;line-height:1.45;margin:40px 0 16px;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.34em;width:3px;height:1.05em;border-radius:2px;background:var(--brand);
}
.article-body h3{font-size:1.25rem;line-height:1.5;margin:28px 0 12px;color:var(--ink);}
.article-body h4{font-size:1.05rem;margin:22px 0 10px;color:var(--ink);}
.article-body ul{margin:0 0 1.2em;padding:0;}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:.55em;}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--accent);
}
.article-body ol{counter-reset:li;margin:0 0 1.2em;}
.article-body ol li{position:relative;padding-left:26px;margin-bottom:.55em;counter-increment:li;}
.article-body ol li::before{
  content:counter(li);position:absolute;left:0;top:.2em;color:var(--brand);font-weight:600;font-size:13px;
  font-variant-numeric:tabular-nums;
}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;background:var(--brand-tint);
  border-left:3px solid var(--brand);border-radius:0 10px 10px 0;color:var(--ink);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-img);margin:22px auto;width:100%;height:auto;object-fit:cover;}
.article-body figure{margin:24px 0;}
.article-body figcaption,.article-body .caption{
  text-align:center;font-size:13px;color:var(--muted);margin-top:10px;line-height:1.6;
}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(27,59,111,.35);}
.article-body a:hover{border-bottom-color:var(--brand);}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:14.5px;}
.article-body th,.article-body td{padding:12px 10px;border:0;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;}
.article-body th{color:var(--ink);font-weight:600;font-size:13.5px;letter-spacing:.02em;}
.article-body strong{color:var(--ink);}
.article-body code{
  background:var(--brand-tint);color:var(--brand-dark);padding:2px 7px;border-radius:6px;font-size:14px;
}
.article-body hr{border:0;border-top:1px solid var(--line);margin:34px 0;}

.article-divider{height:1px;background:var(--line);margin:30px 0 26px;}

/* ---------- tags ---------- */
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:34px;padding-top:26px;border-top:1px solid var(--line);}
.tag-row .label{font-size:13px;color:var(--muted);margin-right:2px;}
.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 15px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:#fff;color:var(--body);font-size:13px;transition:all .18s var(--ease);
}
.tag:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-tint);}

/* ---------- pager ---------- */
.pager{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:34px;}
@media (max-width:640px){.pager{grid-template-columns:1fr;}}
.pager-item{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 22px;box-shadow:var(--sh-1);transition:all .2s var(--ease);
}
.pager-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D6E1F0;}
.pager-item .dir{font-size:12.5px;color:var(--muted);letter-spacing:.06em;}
.pager-item .ttl{display:block;margin-top:8px;font-size:15px;font-weight:600;color:var(--ink);line-height:1.6;}
.pager-item:hover .ttl{color:var(--brand);}
.pager-item.next{text-align:right;}

/* ---------- side column ---------- */
.side-col{display:flex;flex-direction:column;gap:20px;position:sticky;top:96px;}
@media (max-width:991px){.side-col{position:static;top:auto;}}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:22px;}
.side-card h3{font-size:14px;letter-spacing:.04em;color:var(--ink);margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-card h3::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);flex:0 0 auto;}
.toc-list{display:flex;flex-direction:column;}
.toc-list a{
  display:block;padding:9px 0 9px 12px;font-size:13.5px;color:var(--body);line-height:1.6;
  border-left:2px solid var(--line);transition:all .18s var(--ease);
}
.toc-list a:hover{color:var(--brand);border-left-color:var(--brand);background:var(--brand-tint);}
.toc-list a.on{color:var(--brand);font-weight:600;border-left-color:var(--brand);background:var(--brand-tint);}
.rel-list{display:flex;flex-direction:column;}
.rel-list a{
  display:block;padding:11px 0;font-size:13.5px;color:var(--body);line-height:1.6;border-bottom:1px solid var(--line);
}
.rel-list li:last-child a{border-bottom:0;padding-bottom:0;}
.rel-list a:hover{color:var(--brand);}
.side-login{background:var(--brand-tint);border:1px solid #DCE7F6;border-radius:var(--r-card);padding:22px;}
.side-login h3{font-size:15px;margin-bottom:6px;display:block;}
.side-login h3::before{display:none;}
.side-login p{font-size:13px;color:var(--muted);margin:0 0 16px;line-height:1.7;}
.field{margin-bottom:12px;}
.field label{display:block;font-size:13px;font-weight:600;color:var(--brand);margin-bottom:6px;}
.field input{
  width:100%;height:44px;padding:0 13px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;font-size:14px;color:var(--ink);transition:all .18s var(--ease);
}
.field input::placeholder{color:var(--ph);}
.field input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(27,59,111,.12);}
.field-check{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--body);margin:2px 0 16px;cursor:pointer;}
.field-check input{width:16px;height:16px;accent-color:var(--brand);}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;
  border:0;border-radius:var(--r-btn);background:var(--brand);color:#fff;font-size:14.5px;font-weight:500;
  cursor:pointer;transition:all .18s var(--ease);
}
.btn-main:hover{background:var(--brand-dark);transform:translateY(-1px);color:#fff;}
.btn-main.full{width:100%;}
.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;
  border:1px solid var(--brand);border-radius:var(--r-btn);background:#fff;color:var(--brand);
  font-size:14.5px;font-weight:500;cursor:pointer;transition:all .18s var(--ease);
}
.btn-line:hover{background:var(--brand-tint);color:var(--brand-dark);}
.form-links{display:flex;justify-content:space-between;gap:12px;margin-top:14px;font-size:12.5px;}
.form-links a{color:var(--brand);border-bottom:1px solid rgba(27,59,111,.35);}
.form-links a:hover{border-bottom-color:var(--brand);}
.contact-list li{display:flex;gap:10px;font-size:13.5px;color:var(--body);padding:9px 0;border-bottom:1px solid var(--line);line-height:1.65;}
.contact-list li:last-child{border-bottom:0;padding-bottom:0;}
.contact-list svg{flex:0 0 auto;margin-top:4px;color:var(--accent);}

/* ---------- empty ---------- */
.empty-state{text-align:center;padding:52px 24px;border:1px dashed var(--line);border-radius:var(--r-card);background:#fff;}
.empty-state svg{color:var(--muted);margin-bottom:16px;}
.empty-state h3{font-size:18px;margin-bottom:10px;}
.empty-state p{font-size:14px;color:var(--muted);margin:0 auto 22px;max-width:34em;}

/* ---------- related ---------- */
.section{padding:64px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:30px;flex-wrap:wrap;}
.section-head h2{font-size:clamp(1.4rem,2.4vw,1.9rem);line-height:1.35;}
.section-head p{font-size:14px;color:var(--muted);margin:10px 0 0;}
.link-more{
  display:inline-flex;align-items:center;gap:7px;font-size:14px;color:var(--brand);
  border-bottom:1px solid rgba(27,59,111,.4);padding-bottom:2px;
}
.link-more:hover{border-bottom-color:var(--brand);}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
@media (max-width:991px){.rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (max-width:640px){.rel-grid{grid-template-columns:1fr;}}
.rel-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);transition:all .22s var(--ease);height:100%;
}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D6E1F0;}
.rel-media{position:relative;overflow:hidden;background:var(--ph-bg);}
.rel-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s var(--ease);}
.rel-card:hover .rel-media img{transform:scale(1.03);}
.rel-media .chip{
  position:absolute;left:12px;top:12px;height:24px;padding:0 10px;display:inline-flex;align-items:center;
  border-radius:var(--r-pill);background:rgba(238,243,250,.95);color:var(--brand);font-size:12px;font-weight:600;
}
.rel-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1;}
.rel-body h3{font-size:15.5px;line-height:1.6;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rel-card:hover .rel-body h3{color:var(--brand);}
.rel-body p{
  font-size:13.5px;line-height:1.75;color:var(--muted);margin:0 0 16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rel-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--muted);}
.rel-foot svg{color:var(--brand);transition:transform .2s var(--ease);}
.rel-card:hover .rel-foot svg{transform:translateX(3px);}

/* ---------- cta ---------- */
.cta-band{background:var(--brand-tint);border-top:1px solid #DCE7F6;border-bottom:1px solid #DCE7F6;}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:48px 0;}
.cta-inner h2{font-size:clamp(1.35rem,2.3vw,1.75rem);line-height:1.4;}
.cta-inner p{margin:10px 0 0;font-size:14.5px;color:var(--body);max-width:46em;}
.cta-actions{display:flex;gap:14px;flex:0 0 auto;}
@media (max-width:768px){
  .cta-inner{flex-direction:column;align-items:stretch;padding:36px 0;gap:22px;}
  .cta-actions{flex-direction:column;}
  .cta-actions .btn-main,.cta-actions .btn-line{width:100%;}
}

/* ---------- back link ---------- */
.back-row{display:flex;justify-content:center;padding:0 0 64px;}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--brand);}
.link-arrow svg{transition:transform .2s var(--ease);}
.link-arrow:hover svg{transform:translateX(3px);}

/* ---------- footer ---------- */
.site-footer{background:#F2F5FA;border-top:1px solid var(--line);padding:60px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1.1fr 1.3fr;gap:40px;padding-bottom:44px;}
@media (max-width:991px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px;}}
@media (max-width:560px){.footer-grid{grid-template-columns:1fr;gap:28px;}}
.f-brand p{font-size:13.5px;color:var(--body);line-height:1.8;margin:16px 0 18px;max-width:30em;}
.f-brand .link-arrow{font-size:13.5px;}
.f-col h4{font-size:14px;color:var(--ink);margin-bottom:16px;letter-spacing:.02em;}
.f-col ul li{margin-bottom:10px;}
.f-col ul a{font-size:13.5px;color:var(--body);}
.f-col ul a:hover{color:var(--brand);}
.f-contact li{display:flex;gap:9px;font-size:13.5px;color:var(--body);line-height:1.7;margin-bottom:11px;}
.f-contact svg{flex:0 0 auto;margin-top:4px;color:var(--accent);}
.f-contact .num{color:var(--ink);}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0 26px;display:flex;align-items:center;
  justify-content:space-between;gap:18px;flex-wrap:wrap;font-size:12.5px;color:var(--muted);
}
.footer-bottom .fb-left{display:flex;flex-wrap:wrap;align-items:center;gap:14px;}
.footer-bottom .fb-icons{display:flex;gap:10px;}
.footer-bottom .fb-icons a{
  width:34px;height:34px;border:1px solid var(--line);border-radius:50%;background:#fff;
  display:inline-flex;align-items:center;justify-content:center;color:var(--body);transition:all .18s var(--ease);
}
.footer-bottom .fb-icons a:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-tint);}

/* ---------- float cta ---------- */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:1020;
  display:inline-flex;align-items:center;gap:9px;height:48px;padding:0 22px;
  border-radius:var(--r-pill);background:var(--brand);color:#fff;font-size:14.5px;font-weight:500;
  box-shadow:0 12px 28px -12px rgba(27,59,111,.5);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:all .24s var(--ease);
}
.float-cta:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
@media (max-width:767px){
  .float-cta{
    left:0;right:0;bottom:0;height:56px;border-radius:12px 12px 0 0;justify-content:center;
    padding:0 16px calc(0px + env(safe-area-inset-bottom));
    transform:translateY(100%);
  }
  .float-cta.is-visible{transform:translateY(0);}
  body{padding-bottom:0;}
}
@media (max-width:767px){
  .article-hero{padding:30px 0 24px;}
  .article-wrap{padding:30px 0 48px;}
  .section{padding:52px 0;}
  .article-title{font-size:1.75rem;}
}

/* roulang page: category1 */
:root{
  --c-main:#1B3B6F;
  --c-main-dark:#142C55;
  --c-main-soft:#EEF3FA;
  --c-accent:#169C9C;
  --c-accent-soft:#E4F4F4;
  --c-ink:#101A28;
  --c-text:#4A5768;
  --c-muted:#8695A8;
  --c-line:#E3E9F2;
  --c-page:#F7F9FC;
  --c-surface:#FFFFFF;
  --c-placeholder:#A7B3C2;
  --c-danger:#C2483F;
  --c-deep:#0F1E38;

  --r-card:14px;
  --r-img:12px;
  --r-img-lg:16px;
  --r-btn:10px;
  --r-input:10px;
  --r-pill:999px;

  --sh-1:0 1px 2px rgba(16,26,40,.04), 0 8px 24px -12px rgba(16,26,40,.10);
  --sh-2:0 12px 32px -12px rgba(27,59,111,.18);

  --sp-4:4px; --sp-8:8px; --sp-12:12px; --sp-16:16px; --sp-24:24px;
  --sp-32:32px; --sp-48:48px; --sp-64:64px; --sp-96:96px; --sp-120:120px;

  --font-cn:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;

  --bs-primary:#1B3B6F;
  --bs-primary-rgb:27,59,111;
  --bs-link-color:#1B3B6F;
  --bs-link-hover-color:#142C55;
  --bs-border-radius:10px;
  --bs-border-color:#E3E9F2;
  --bs-body-color:#4A5768;
  --bs-body-bg:#F7F9FC;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-main);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--c-main-dark);}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:600;letter-spacing:-.01em;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (min-width:1400px){.container{max-width:1280px;}}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(8px);
  border-bottom:1px solid transparent;
  transition:background .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.site-header.is-scrolled{
  background:#fff;
  border-bottom-color:var(--c-line);
  box-shadow:0 1px 2px rgba(16,26,40,.04),0 8px 24px -18px rgba(16,26,40,.18);
}
.nav-inner{display:flex;align-items:center;gap:24px;height:72px;transition:height .2s ease;}
.site-header.is-scrolled .nav-inner{height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--c-ink);}
.brand:hover{color:var(--c-main);}
.brand-mark{
  width:36px;height:36px;border-radius:10px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  background:var(--c-main);color:#fff;font-size:18px;font-weight:600;
  letter-spacing:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;font-size:16px;font-weight:600;letter-spacing:.01em;}
.brand-text em{font-style:normal;font-size:11px;font-weight:400;color:var(--c-muted);letter-spacing:.08em;margin-top:2px;}

.nav-main{display:flex;align-items:center;gap:0;margin-left:auto;}
.nav-main a{
  position:relative;display:flex;align-items:center;height:38px;
  padding:0 16px;font-size:14px;font-weight:500;letter-spacing:.02em;color:var(--c-text);
}
.nav-main a+a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:1px;height:14px;background:var(--c-line);
}
.nav-main a:hover{color:var(--c-main);}
.nav-main a.active{color:var(--c-main);font-weight:600;}
.nav-main a.active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:5px;height:2px;
  border-radius:2px;background:var(--c-main);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.btn-pill-ghost{
  display:inline-flex;align-items:center;justify-content:center;
  height:38px;padding:0 18px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);color:var(--c-main);font-size:14px;font-weight:500;
  background:#fff;transition:.18s ease;
}
.btn-pill-ghost:hover{border-color:var(--c-main);background:var(--c-main-soft);color:var(--c-main-dark);}
.btn-sm-main{
  display:inline-flex;align-items:center;justify-content:center;
  height:38px;padding:0 20px;border-radius:var(--r-pill);
  background:var(--c-main);color:#fff;font-size:14px;font-weight:500;
  transition:.18s ease;
}
.btn-sm-main:hover{background:var(--c-main-dark);color:#fff;transform:translateY(-1px);}
.nav-toggle{
  display:none;width:44px;height:44px;border:0;background:transparent;
  align-items:center;justify-content:center;cursor:pointer;margin-left:auto;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  display:block;width:20px;height:1.5px;background:var(--c-ink);border-radius:2px;transition:.2s ease;
}
.nav-toggle span{position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ---------- buttons ---------- */
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);border:1px solid var(--c-main);
  background:var(--c-main);color:#fff;font-size:15px;font-weight:500;cursor:pointer;
  transition:.18s ease;
}
.btn-main:hover{background:var(--c-main-dark);border-color:var(--c-main-dark);color:#fff;transform:translateY(-1px);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);border:1px solid var(--c-line);
  background:#fff;color:var(--c-main);font-size:15px;font-weight:500;transition:.18s ease;
}
.btn-ghost:hover{border-color:var(--c-main);background:var(--c-main-soft);color:var(--c-main-dark);}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:500;
  color:var(--c-main);border-bottom:1px solid rgba(27,59,111,.6);
  padding-bottom:2px;transition:border-color .18s ease,color .18s ease;
}
.link-arrow:hover{border-bottom-color:var(--c-main);color:var(--c-main-dark);}
.link-arrow svg{transition:transform .18s ease;}
.link-arrow:hover svg{transform:translateX(3px);}

/* ---------- breadcrumb ---------- */
.crumb-bar{padding:calc(72px + 20px) 0 0;background:#fff;border-bottom:1px solid var(--c-line);}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding-bottom:14px;font-size:13px;color:var(--c-muted);}
.crumb a{color:var(--c-muted);}
.crumb a:hover{color:var(--c-main);}
.crumb .sep{color:#C7D1DE;}
.crumb .cur{color:var(--c-text);}

/* ---------- category hero band ---------- */
.cat-hero{
  position:relative;height:320px;overflow:hidden;background:#EEF2F7;
  display:flex;align-items:flex-end;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center 30%;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(255,255,255,.96) 0%,rgba(255,255,255,.86) 42%,rgba(238,243,250,.52) 100%);
}
.cat-hero .container{position:relative;z-index:2;padding-bottom:44px;}
.hero-pill{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;
  border:1px solid var(--c-line);border-radius:var(--r-pill);background:rgba(255,255,255,.9);
  font-size:12px;font-weight:500;color:var(--c-main);letter-spacing:.06em;margin-bottom:16px;
}
.hero-pill i{width:6px;height:6px;border-radius:50%;background:var(--c-accent);display:block;}
.cat-hero h1{
  font-size:clamp(1.75rem,3.2vw,2.5rem);line-height:1.28;font-weight:700;
  max-width:800px;letter-spacing:-.01em;
}
.cat-hero .lead{
  margin-top:14px;max-width:760px;font-size:15px;line-height:1.85;color:var(--c-text);
}

/* ---------- sections ---------- */
.section{padding:96px 0;}
.section.tight{padding:72px 0;}
.section.alt{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.sec-head{max-width:760px;margin-bottom:48px;}
.sec-eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;
  letter-spacing:.12em;color:var(--c-accent);margin-bottom:12px;
}
.sec-eyebrow::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--c-accent);}
.sec-head h2{font-size:clamp(1.5rem,2.6vw,2.125rem);line-height:1.35;}
.sec-head p{margin-top:14px;font-size:15px;color:var(--c-text);}

/* ---------- two-column big cards ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:32px;}
.entry-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease;
  display:flex;flex-direction:column;
}
.entry-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.entry-thumb{
  position:relative;aspect-ratio:16/9;background:#EEF2F7;overflow:hidden;
}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.entry-card:hover .entry-thumb img{transform:scale(1.03);}
.entry-tag{
  position:absolute;left:14px;top:14px;height:26px;padding:0 12px;display:inline-flex;align-items:center;
  border-radius:var(--r-pill);background:var(--c-main-soft);color:var(--c-main);
  font-size:12px;font-weight:600;letter-spacing:.04em;
}
.entry-body{padding:26px 26px 28px;display:flex;flex-direction:column;flex:1;}
.entry-body h3{font-size:1.25rem;line-height:1.4;margin-bottom:10px;}
.entry-body>p{font-size:14px;color:var(--c-muted);line-height:1.8;}
.point-list{margin-top:8px;border-top:1px solid var(--c-line);}
.point-list li{
  display:flex;gap:10px;align-items:flex-start;padding:12px 0;
  border-bottom:1px solid var(--c-line);font-size:14px;color:var(--c-text);line-height:1.7;
}
.point-list li::before{
  content:"";flex:0 0 auto;width:6px;height:6px;margin-top:9px;border-radius:50%;
  background:var(--c-accent);
}
.point-list li strong{color:var(--c-ink);font-weight:600;}
.entry-foot{margin-top:auto;padding-top:20px;}

/* ---------- check strip ---------- */
.check-wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:start;}
.check-left h2{font-size:clamp(1.5rem,2.6vw,2.125rem);line-height:1.35;margin-bottom:18px;}
.check-left p{font-size:15px;max-width:520px;}
.check-notes{margin-top:26px;display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--c-line);font-size:13px;color:var(--c-text);
}
.check-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:8px 26px 18px;box-shadow:var(--sh-1);
}
.check-row{
  display:flex;gap:16px;padding:18px 0;border-bottom:1px solid var(--c-line);
}
.check-row:last-child{border-bottom:0;}
.check-num{
  flex:0 0 auto;font-size:20px;font-weight:600;color:var(--c-main);
  font-variant-numeric:tabular-nums;width:38px;line-height:1.5;
}
.check-row h3{font-size:15px;margin-bottom:4px;}
.check-row p{font-size:13.5px;color:var(--c-muted);line-height:1.75;margin:0;}

/* ---------- table ---------- */
.tbl-wrap{overflow-x:auto;border-top:1px solid var(--c-line);}
table.role-tbl{width:100%;min-width:640px;border-collapse:collapse;}
table.role-tbl th,table.role-tbl td{
  text-align:left;padding:16px 18px;border-bottom:1px solid var(--c-line);font-size:14px;
}
table.role-tbl th{
  font-size:13px;font-weight:600;color:var(--c-muted);letter-spacing:.05em;
  background:#fff;
}
table.role-tbl td{color:var(--c-text);}
table.role-tbl td:first-child{color:var(--c-ink);font-weight:600;}
table.role-tbl tr:hover td{background:#FBFCFE;}

/* ---------- faq ---------- */
.faq-grid{display:grid;grid-template-columns:38% 62%;gap:48px;align-items:start;}
.faq-side{position:sticky;top:104px;}
.faq-side h2{font-size:clamp(1.5rem,2.6vw,2.125rem);line-height:1.35;margin-bottom:16px;}
.faq-side p{font-size:14.5px;color:var(--c-muted);}
.faq-list{border-top:1px solid var(--c-line);max-width:720px;}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-q{
  width:100%;background:transparent;border:0;cursor:pointer;text-align:left;
  display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
  padding:22px 0;font-size:16px;font-weight:600;color:var(--c-ink);line-height:1.65;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--c-main);}
.faq-item.open .faq-q{color:var(--c-main);}
.faq-sign{position:relative;flex:0 0 auto;width:18px;height:18px;margin-top:6px;}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;background:var(--c-muted);border-radius:2px;transition:transform .2s ease,background .2s ease;
}
.faq-sign::before{left:0;top:8px;width:18px;height:1.5px;}
.faq-sign::after{left:8px;top:0;width:1.5px;height:18px;}
.faq-item.open .faq-sign::before{background:var(--c-main);}
.faq-item.open .faq-sign::after{transform:scaleY(0);background:var(--c-main);}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .2s ease;
}
.faq-a-inner{padding:0 40px 24px 0;font-size:14.5px;color:var(--c-text);line-height:1.85;}
.faq-a-inner ul{margin-top:10px;}
.faq-a-inner li{
  position:relative;padding-left:16px;margin-bottom:8px;font-size:14px;color:var(--c-text);
}
.faq-a-inner li::before{
  content:"";position:absolute;left:0;top:10px;width:5px;height:5px;border-radius:50%;background:var(--c-accent);
}

/* ---------- cta band ---------- */
.cta-band{background:var(--c-main-soft);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:56px 0;
}
.cta-inner h2{font-size:clamp(1.35rem,2.2vw,1.75rem);line-height:1.4;}
.cta-inner p{margin-top:10px;font-size:14.5px;color:var(--c-text);max-width:560px;}
.cta-btns{display:flex;gap:12px;flex:0 0 auto;}

/* ---------- cross links ---------- */
.cross-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--c-line);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;}
.cross-item{
  background:#fff;padding:26px 24px;display:flex;flex-direction:column;gap:10px;transition:background .2s ease;
}
.cross-item:hover{background:var(--c-main-soft);}
.cross-item h3{font-size:15px;}
.cross-item p{font-size:13.5px;color:var(--c-muted);line-height:1.75;margin:0;}
.cross-item .link-arrow{font-size:13.5px;align-self:flex-start;margin-top:4px;}
.back-home{margin-top:28px;}

/* ---------- footer ---------- */
.site-footer{background:#F2F5FA;border-top:1px solid var(--c-line);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;}
.f-brand p{font-size:13.5px;color:var(--c-muted);line-height:1.8;margin:16px 0 18px;max-width:280px;}
.f-col h4{font-size:14px;margin-bottom:18px;letter-spacing:.02em;}
.f-col ul li{margin-bottom:12px;}
.f-col ul li a{font-size:13.5px;color:var(--c-text);}
.f-col ul li a:hover{color:var(--c-main);}
.f-contact li{
  display:flex;gap:9px;align-items:flex-start;font-size:13.5px;color:var(--c-text);
  line-height:1.7;margin-bottom:14px;
}
.f-contact li svg{flex:0 0 auto;margin-top:4px;color:var(--c-muted);}
.footer-bottom{
  margin-top:56px;border-top:1px solid var(--c-line);padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
}
.footer-bottom p{margin:0;font-size:12.5px;color:var(--c-muted);line-height:1.7;}
.social-row{display:flex;gap:10px;}
.social-row a{
  width:34px;height:34px;border-radius:50%;border:1px solid var(--c-line);background:#fff;
  display:flex;align-items:center;justify-content:center;color:var(--c-muted);transition:.18s ease;
}
.social-row a:hover{color:var(--c-main);border-color:var(--c-main);}

/* ---------- float cta ---------- */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:990;
  display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 22px;
  border-radius:var(--r-pill);background:var(--c-main);color:#fff;font-size:14px;font-weight:500;
  box-shadow:0 10px 26px -10px rgba(27,59,111,.5);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease,box-shadow .2s ease;
}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{background:var(--c-main-dark);color:#fff;transform:translateY(-2px);box-shadow:0 16px 32px -12px rgba(27,59,111,.55);}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .nav-main a{padding:0 12px;font-size:13.5px;}
  .nav-main a.active::after{left:12px;right:12px;}
}
@media (max-width:991.98px){
  .nav-main{
    position:fixed;top:0;left:0;right:0;bottom:0;background:#fff;
    flex-direction:column;align-items:stretch;justify-content:flex-start;
    padding:100px 24px 32px;gap:0;margin:0;overflow-y:auto;
    transform:translateY(-8px);opacity:0;visibility:hidden;transition:.22s ease;z-index:1001;
  }
  .nav-main.open{transform:translateY(0);opacity:1;visibility:visible;}
  .nav-main a{
    height:auto;padding:18px 0;font-size:20px;font-weight:500;
    border-bottom:1px solid var(--c-line);
  }
  .nav-main a+a::before{display:none;}
  .nav-main a.active::after{display:none;}
  .nav-actions{display:none;}
  .nav-toggle{display:flex;position:relative;z-index:1002;}
  .nav-toggle.active span{background:transparent;}
  .nav-toggle.active span::before{top:0;transform:rotate(45deg);}
  .nav-toggle.active span::after{top:0;transform:rotate(-45deg);}

  .entry-grid{grid-template-columns:1fr;gap:24px;}
  .check-wrap{grid-template-columns:1fr;gap:32px;}
  .faq-grid{grid-template-columns:1fr;gap:28px;}
  .faq-side{position:static;}
  .cross-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:24px;padding:48px 0;}
  .cta-btns{width:100%;flex-direction:column;}
  .cta-btns .btn-main,.cta-btns .btn-ghost{width:100%;}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  .section{padding:64px 0;}
  .section.tight{padding:56px 0;}
  .sec-head{margin-bottom:32px;}
  .cat-hero{height:auto;min-height:0;padding-top:8px;}
  .cat-hero .container{padding-top:36px;padding-bottom:36px;}
  .cat-hero h1{font-size:1.6rem;}
  .crumb-bar{padding-top:calc(64px + 14px);}
  .entry-body{padding:22px 20px 24px;}
  .check-card{padding:4px 20px 12px;}
  .faq-q{font-size:15px;padding:18px 0;}
  .faq-a-inner{padding-right:0;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:14px;}
  .float-cta{
    left:0;right:0;bottom:0;border-radius:12px 12px 0 0;height:52px;justify-content:center;
    padding-bottom:env(safe-area-inset-bottom);
    box-shadow:0 -6px 20px -10px rgba(27,59,111,.4);
  }
  .float-cta.show{transform:translateY(0);}
  body{padding-bottom:52px;}
}

/* roulang page: category2 */
/* ===== 设计变量 ===== */
:root{
  --c-primary:#1B3B6F;
  --c-primary-dark:#142C55;
  --c-primary-soft:#EEF3FA;
  --c-accent:#169C9C;
  --c-accent-soft:#E4F4F4;
  --c-dark:#0F1E38;
  --c-title:#101A28;
  --c-text:#4A5768;
  --c-muted:#8695A8;
  --c-line:#E3E9F2;
  --c-bg:#F7F9FC;
  --c-surface:#FFFFFF;
  --c-placeholder:#A7B3C2;
  --c-danger:#C2483F;
  --r-card:14px;
  --r-img:12px;
  --r-lg:16px;
  --r-btn:10px;
  --r-input:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,26,40,.04), 0 8px 24px -12px rgba(16,26,40,.10);
  --sh-2:0 12px 32px -12px rgba(27,59,111,.18);
  --bs-primary:#1B3B6F;
  --bs-primary-rgb:27,59,111;
  --bs-link-color:#1B3B6F;
  --bs-link-hover-color:#142C55;
  --bs-border-radius:10px;
  --bs-body-color:#4A5768;
  --bs-body-bg:#F7F9FC;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
}

/* ===== 基础重置 ===== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;background:#EEF2F7;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease,border-color .18s ease;}
a:hover{color:var(--c-primary-dark);}
h1,h2,h3,h4{margin:0;color:var(--c-title);font-weight:600;letter-spacing:-.01em;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:1400px){.container{max-width:1280px;}}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid transparent;
  transition:box-shadow .2s ease,border-color .2s ease,background .2s ease;
}
.site-header.scrolled{border-bottom-color:var(--c-line);box-shadow:0 6px 22px -18px rgba(16,26,40,.5);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px;transition:height .2s ease;}
.site-header.scrolled .nav-inner{height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;background:var(--c-primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:600;letter-spacing:0;flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;font-size:16px;font-weight:600;color:var(--c-title);line-height:1.15;letter-spacing:.01em;}
.brand-text em{font-style:normal;font-size:11.5px;font-weight:400;color:var(--c-muted);letter-spacing:.06em;margin-top:3px;}
.nav-main{display:flex;align-items:center;margin-left:auto;}
.nav-main a{
  position:relative;display:inline-flex;align-items:center;height:72px;
  padding:0 14px;font-size:14.5px;font-weight:500;letter-spacing:.02em;color:#42506A;
  transition:color .18s ease,height .2s ease;
}
.site-header.scrolled .nav-main a{height:64px;}
.nav-main a + a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:1px;height:14px;background:var(--c-line);
}
.nav-main a:hover{color:var(--c-primary);}
.nav-main a.active{color:var(--c-primary);}
.nav-main a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:18px;height:2px;
  border-radius:2px;background:var(--c-primary);
}
.site-header.scrolled .nav-main a.active::after{bottom:14px;}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.btn-pill-ghost{
  display:inline-flex;align-items:center;justify-content:center;
  height:38px;padding:0 18px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);background:#fff;color:var(--c-primary);
  font-size:14px;font-weight:500;transition:all .18s ease;
}
.btn-pill-ghost:hover{border-color:var(--c-primary);background:var(--c-primary-soft);color:var(--c-primary-dark);}
.btn-sm-main{
  display:inline-flex;align-items:center;justify-content:center;
  height:38px;padding:0 18px;border-radius:var(--r-btn);
  background:var(--c-primary);color:#fff;font-size:14px;font-weight:500;
  transition:all .18s ease;
}
.btn-sm-main:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);}
.nav-toggle{
  display:none;width:44px;height:44px;border:0;background:transparent;
  position:relative;cursor:pointer;padding:0;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";position:absolute;left:12px;width:20px;height:1.6px;background:var(--c-title);
  border-radius:2px;transition:.2s ease;
}
.nav-toggle span{top:21px;}
.nav-toggle span::before{top:-6px;left:0;}
.nav-toggle span::after{top:6px;left:0;}

/* ===== 按钮体系 ===== */
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);border:0;
  background:var(--c-primary);color:#fff;font-size:15px;font-weight:500;
  cursor:pointer;transition:all .18s ease;
}
.btn-main:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);
  background:#fff;border:1px solid var(--c-primary);color:var(--c-primary);
  font-size:15px;font-weight:500;transition:all .18s ease;
}
.btn-ghost:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:500;
  color:var(--c-primary);padding-bottom:2px;border-bottom:1px solid rgba(27,59,111,.55);
  transition:border-color .18s ease,color .18s ease;
}
.link-arrow:hover{border-color:var(--c-primary);color:var(--c-primary-dark);}
.link-arrow svg{transition:transform .18s ease;}
.link-arrow:hover svg{transform:translateX(3px);}

/* ===== 徽章 / 标签 ===== */
.badge-soft{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
  background:var(--c-primary-soft);color:var(--c-primary);font-size:12px;font-weight:600;letter-spacing:.02em;
}
.tag-pill{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--c-line);color:var(--c-text);font-size:13px;
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;}

/* ===== 页头 ===== */
.page-head{
  position:relative;overflow:hidden;background:#fff;
  padding:52px 0 48px;border-bottom:1px solid var(--c-line);
}
.page-head::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(620px 320px at 10% -12%, rgba(27,59,111,.08), transparent 70%),
    radial-gradient(440px 260px at 90% 4%, rgba(22,156,156,.08), transparent 72%);
}
.page-head::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.4;
  background-image:radial-gradient(rgba(27,59,111,.12) 1px, transparent 1px);
  background-size:22px 22px;
  -webkit-mask-image:linear-gradient(180deg,#000,transparent 78%);
  mask-image:linear-gradient(180deg,#000,transparent 78%);
}
.page-head .container{position:relative;z-index:1;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-muted);}
.crumb a{color:var(--c-muted);}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{color:#C6D0DD;}
.page-title{
  font-size:clamp(2rem,3.8vw,2.7rem);line-height:1.28;letter-spacing:-.01em;
  margin:16px 0 16px;max-width:920px;
}
.page-lede{font-size:16.5px;line-height:1.85;color:#55637A;max-width:780px;margin:0 0 24px;}
.head-facts{
  display:flex;flex-wrap:wrap;gap:0;border-top:1px solid var(--c-line);
  padding-top:20px;margin-top:6px;
}
.head-facts li{
  padding-right:32px;margin-right:32px;border-right:1px solid var(--c-line);
  display:flex;flex-direction:column;
}
.head-facts li:last-child{border-right:0;margin-right:0;padding-right:0;}
.head-facts b{font-size:24px;font-weight:600;color:var(--c-primary);line-height:1.2;font-variant-numeric:tabular-nums;}
.head-facts span{font-size:13px;color:var(--c-muted);margin-top:4px;}

/* ===== 主体两栏 ===== */
.cat2-layout{
  display:grid;grid-template-columns:296px minmax(0,1fr);
  gap:52px;padding:72px 0 24px;
}
.side-sticky{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-1);
}
.side-card h3{font-size:15.5px;margin-bottom:6px;}
.side-card .hint{font-size:13px;color:var(--c-muted);line-height:1.7;margin-bottom:14px;}
.toc-label{
  font-size:12px;letter-spacing:.1em;color:var(--c-muted);font-weight:600;
  margin-bottom:10px;padding-bottom:10px;border-bottom:1px solid var(--c-line);
}
.toc-list a{
  display:flex;gap:10px;align-items:flex-start;padding:11px 0;font-size:14.5px;
  color:var(--c-text);border-bottom:1px solid var(--c-line);transition:.18s ease;
}
.toc-list li:last-child a{border-bottom:0;}
.toc-list a .idx{font-size:12.5px;color:var(--c-muted);font-variant-numeric:tabular-nums;padding-top:2px;}
.toc-list a:hover{color:var(--c-primary);padding-left:4px;}
.toc-list a.active{color:var(--c-primary);font-weight:600;}
.toc-list a.active .idx{color:var(--c-accent);}

.field{margin-bottom:14px;}
.field label{display:block;font-size:13px;font-weight:600;color:var(--c-primary);margin-bottom:6px;}
.field input{
  width:100%;height:44px;border:1px solid var(--c-line);border-radius:var(--r-input);
  padding:0 12px;font-size:14px;color:var(--c-title);background:#fff;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field input::placeholder{color:var(--c-placeholder);}
.field input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(27,59,111,.12);}
.check-row{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-muted);margin-bottom:16px;}
.check-row input{width:15px;height:15px;accent-color:var(--c-primary);}
.btn-block{
  display:flex;align-items:center;justify-content:center;width:100%;height:44px;
  border:0;border-radius:var(--r-btn);background:var(--c-primary);color:#fff;
  font-size:15px;font-weight:500;cursor:pointer;transition:all .18s ease;
}
.btn-block:hover{background:var(--c-primary-dark);transform:translateY(-1px);}
.form-links{display:flex;justify-content:space-between;gap:12px;margin-top:14px;font-size:13px;}

/* ===== 编号时间线 ===== */
.flow{position:relative;}
.flow-item{
  position:relative;display:grid;grid-template-columns:84px minmax(0,1fr);
  gap:24px;padding-bottom:44px;
}
.flow-item:last-child{padding-bottom:0;}
.flow-item::before{
  content:"";position:absolute;left:41px;top:60px;bottom:0;width:1px;background:var(--c-line);
}
.flow-item:last-child::before{display:none;}
.flow-num{
  font-size:34px;font-weight:600;line-height:1;color:var(--c-primary);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
  background:var(--c-bg);padding-bottom:8px;position:relative;z-index:1;
}
.flow-body h3{font-size:20px;line-height:1.45;margin-bottom:10px;}
.flow-body > p{font-size:15.5px;color:#4A5768;}
.flow-points{margin-top:14px;border-top:1px solid var(--c-line);}
.flow-points li{
  position:relative;padding:11px 0 11px 22px;font-size:14.5px;
  border-bottom:1px solid var(--c-line);color:#54627A;
}
.flow-points li::before{
  content:"";position:absolute;left:3px;top:20px;width:6px;height:6px;border-radius:50%;
  background:var(--c-accent);
}
.flow-figure{margin-top:18px;}
.flow-figure img{
  width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-img);
  border:1px solid var(--c-line);
}
.flow-figure figcaption{font-size:13px;color:var(--c-muted);text-align:center;margin-top:10px;}
.flow-note{
  margin-top:16px;border-left:3px solid var(--c-primary);background:var(--c-primary-soft);
  border-radius:0 var(--r-card) var(--r-card) 0;padding:16px 20px;font-size:14.5px;color:#44526A;
}

.perm-table{width:100%;border-collapse:collapse;font-size:14.5px;margin-top:16px;}
.perm-table th,.perm-table td{padding:12px 10px;text-align:left;border-bottom:1px solid var(--c-line);vertical-align:top;}
.perm-table th{font-size:13px;color:var(--c-muted);font-weight:600;letter-spacing:.03em;white-space:nowrap;}
.perm-table td:first-child{color:var(--c-title);font-weight:500;white-space:nowrap;}
.table-wrap{overflow-x:auto;}

/* ===== 交叉链接 ===== */
.xlink-sec{margin-top:72px;padding-top:36px;border-top:1px solid var(--c-line);}
.xlink-head{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:12px;}
.xlink-head h2{font-size:clamp(1.35rem,2.2vw,1.7rem);}
.xlink-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:24px;}
.xlink-item{
  display:flex;flex-direction:column;gap:10px;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1);transition:all .2s ease;
}
.xlink-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D8E1EE;}
.xlink-item h3{font-size:16.5px;line-height:1.5;}
.xlink-item p{font-size:14px;color:var(--c-muted);line-height:1.75;margin:0;}
.xlink-item .go{
  display:inline-flex;align-items:center;gap:6px;font-size:13.5px;color:var(--c-primary);
  font-weight:500;margin-top:2px;
}
.back-home{margin-top:26px;font-size:14px;}

/* ===== 结尾转化条 ===== */
.cta-band{
  background:var(--c-primary-soft);border-top:1px solid var(--c-line);
  padding:60px 0;margin-top:72px;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:40px;}
.cta-text h2{font-size:clamp(1.4rem,2.4vw,1.95rem);line-height:1.4;margin-bottom:10px;}
.cta-text p{font-size:15px;color:#55637A;max-width:620px;margin:0;}
.cta-actions{display:flex;gap:12px;flex:0 0 auto;}

/* ===== 浮动 CTA ===== */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:900;
  display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 20px;
  border-radius:var(--r-pill);background:var(--c-primary);color:#fff;
  font-size:14px;font-weight:500;box-shadow:0 10px 26px -10px rgba(27,59,111,.55);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease,background .18s ease;
}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-2px);}

/* ===== 页脚 ===== */
.site-footer{background:#F2F5FA;border-top:1px solid var(--c-line);padding-top:64px;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.35fr;gap:40px;padding-bottom:48px;}
.f-brand p{font-size:14px;color:var(--c-muted);line-height:1.8;margin:16px 0 14px;max-width:330px;}
.f-col h4{font-size:14px;letter-spacing:.04em;margin-bottom:16px;}
.f-col ul{display:flex;flex-direction:column;gap:10px;}
.f-col ul a{font-size:14px;color:#4A5768;}
.f-col ul a:hover{color:var(--c-primary);}
.f-contact li{display:flex;gap:8px;font-size:13.5px;color:#4A5768;line-height:1.7;}
.f-contact svg{flex:0 0 auto;margin-top:5px;color:var(--c-muted);}
.footer-bottom{
  border-top:1px solid var(--c-line);padding:20px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:var(--c-muted);
}
.f-social{display:flex;align-items:center;gap:14px;}
.f-social a{color:var(--c-muted);display:inline-flex;width:32px;height:32px;align-items:center;justify-content:center;border:1px solid var(--c-line);border-radius:var(--r-pill);background:#fff;transition:.18s ease;}
.f-social a:hover{color:var(--c-primary);border-color:var(--c-primary);}

/* ===== 响应式 ===== */
@media (max-width:1199px){
  .cat2-layout{grid-template-columns:262px minmax(0,1fr);gap:40px;}
}
@media (max-width:991px){
  .nav-toggle{display:block;}
  .nav-main{
    display:none;position:fixed;left:0;right:0;top:64px;bottom:0;z-index:998;
    background:#fff;flex-direction:column;align-items:stretch;
    padding:8px 20px 120px;overflow-y:auto;margin-left:0;
  }
  .nav-main.open{display:flex;}
  .nav-main a{
    height:auto;padding:16px 0;font-size:20px;font-weight:500;color:var(--c-title);
    border-bottom:1px solid var(--c-line);
  }
  .site-header.scrolled .nav-main a{height:auto;}
  .nav-main a + a::before{display:none;}
  .nav-main a.active::after{display:none;}
  .nav-actions{
    position:fixed;left:0;right:0;bottom:0;z-index:1002;display:none;gap:12px;
    padding:16px 20px calc(16px + env(safe-area-inset-bottom));
    background:#fff;border-top:1px solid var(--c-line);
  }
  body.nav-open .nav-actions{display:flex;}
  body.nav-open .nav-actions a{flex:1;}
  body.nav-open .float-cta{display:none;}
  .btn-pill-ghost,.btn-sm-main{height:44px;flex:1;}

  .cat2-layout{grid-template-columns:1fr;gap:36px;padding:48px 0 16px;}
  .side-sticky{position:static;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;padding-bottom:36px;}
  .xlink-list{grid-template-columns:1fr;}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:24px;}
  .cta-actions{width:100%;}
  .cta-actions .btn-main,.cta-actions .btn-ghost{flex:1;}
  .float-cta{
    left:0;right:0;bottom:0;height:52px;border-radius:12px 12px 0 0;
    justify-content:center;padding:0 16px calc(0px + env(safe-area-inset-bottom));
  }
  .float-cta.show{transform:translateY(0);}
  .site-footer{padding-bottom:52px;}
}
@media (max-width:575px){
  body{font-size:16px;}
  .page-head{padding:36px 0 34px;}
  .page-title{font-size:1.75rem;}
  .head-facts li{padding-right:20px;margin-right:20px;}
  .head-facts b{font-size:20px;}
  .cat2-layout{padding:56px 0 8px;}
  .flow-item{grid-template-columns:1fr;gap:10px;padding-bottom:36px;}
  .flow-item::before{display:none;}
  .flow-num{font-size:26px;background:transparent;}
  .flow-body h3{font-size:18px;}
  .flow-figure img{aspect-ratio:4/3;}
  .cta-band{padding:44px 0;margin-top:56px;}
  .cta-actions{flex-direction:column;}
  .cta-actions .btn-main,.cta-actions .btn-ghost{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px;}
  .xlink-sec{margin-top:56px;}
}

/* roulang page: category3 */
:root{
  --primary:#1B3B6F;
  --primary-dark:#142C55;
  --primary-soft:#EEF3FA;
  --accent:#169C9C;
  --accent-soft:#E4F4F4;
  --dark:#0F1E38;
  --title:#101A28;
  --body:#4A5768;
  --muted:#8695A8;
  --line:#E3E9F2;
  --page:#F7F9FC;
  --card:#FFFFFF;
  --ph:#EEF2F7;
  --danger:#C2483F;
  --r-card:14px;
  --r-img:12px;
  --r-lg:16px;
  --r-btn:10px;
  --r-input:10px;
  --sh-1:0 1px 2px rgba(16,26,40,.04), 0 8px 24px -12px rgba(16,26,40,.10);
  --sh-2:0 12px 32px -12px rgba(27,59,111,.18);
  --bs-primary:#1B3B6F;
  --bs-primary-rgb:27,59,111;
  --bs-link-color:#1B3B6F;
  --bs-link-hover-color:#142C55;
  --bs-border-radius:10px;
  --bs-body-color:#4A5768;
  --bs-body-bg:#F7F9FC;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--page);
  color:var(--body);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease;}
a:hover{color:var(--primary-dark);}
button,input{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--title);font-weight:600;letter-spacing:-.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:1400px){.container{max-width:1280px;}}

/* ---------- 头部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(180%) blur(10px);
  -webkit-backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid transparent;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.site-header.scrolled{border-bottom-color:var(--line);box-shadow:0 1px 2px rgba(16,26,40,.04),0 10px 26px -20px rgba(16,26,40,.30);}
.nav-inner{display:flex;align-items:center;gap:22px;height:72px;transition:height .2s ease;}
.site-header.scrolled .nav-inner{height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;background:var(--primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:600;letter-spacing:0;flex-shrink:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;color:var(--title);font-size:16px;font-weight:600;letter-spacing:.02em;}
.brand-text em{font-style:normal;font-size:11px;font-weight:400;color:var(--muted);letter-spacing:.08em;margin-top:3px;}
.nav-main{display:flex;align-items:center;margin-left:auto;}
.nav-main a{
  position:relative;display:inline-flex;align-items:center;height:72px;padding:0 16px;
  font-size:14px;font-weight:500;letter-spacing:.02em;color:#3C4A5C;white-space:nowrap;
  transition:height .2s ease,color .18s ease;
}
.site-header.scrolled .nav-main a{height:64px;}
.nav-main a+a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:1px;height:14px;background:var(--line);
}
.nav-main a:hover{color:var(--primary);}
.nav-main a.active{color:var(--primary);font-weight:600;}
.nav-main a.active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:14px;height:2px;
  border-radius:2px;background:var(--primary);
}
.site-header.scrolled .nav-main a.active::after{bottom:10px;}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:8px;}
.btn-pill-ghost{
  display:inline-flex;align-items:center;justify-content:center;height:40px;padding:0 20px;
  border:1px solid var(--line);border-radius:999px;color:var(--primary);font-size:14px;font-weight:500;
  background:#fff;transition:border-color .18s,background-color .18s,color .18s;
}
.btn-pill-ghost:hover{border-color:var(--primary);background:var(--primary-soft);color:var(--primary-dark);}
.btn-sm-main{
  display:inline-flex;align-items:center;justify-content:center;height:40px;padding:0 20px;
  border-radius:999px;background:var(--primary);color:#fff;font-size:14px;font-weight:500;
  border:1px solid var(--primary);transition:background-color .18s,transform .18s,box-shadow .18s;
}
.btn-sm-main:hover{background:var(--primary-dark);border-color:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.nav-toggle{
  display:none;width:44px;height:44px;margin-left:auto;border:0;background:transparent;position:relative;cursor:pointer;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:11px;width:22px;height:1.5px;background:var(--title);border-radius:2px;
  transition:transform .2s ease,opacity .2s ease;
}
.nav-toggle span{top:21px;}
.nav-toggle span::before{top:-7px;left:0;}
.nav-toggle span::after{top:7px;left:0;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-7px) rotate(-45deg);}

/* ---------- 分类 Hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;padding:132px 0 52px;
  background-image:linear-gradient(96deg,rgba(247,249,252,.97) 0%,rgba(247,249,252,.90) 46%,rgba(247,249,252,.58) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center right;
  border-bottom:1px solid var(--line);
}
.cat-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--line);
}
.breadcrumb-nav{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--muted);margin-bottom:18px;}
.breadcrumb-nav a{color:var(--muted);}
.breadcrumb-nav a:hover{color:var(--primary);}
.breadcrumb-nav span{color:#C4CEDA;}
.breadcrumb-nav em{font-style:normal;color:var(--body);}
.cat-hero h1{
  font-size:clamp(1.75rem,3.6vw,2.75rem);
  line-height:1.25;font-weight:600;letter-spacing:-.01em;margin-bottom:16px;max-width:820px;
}
.cat-lead{max-width:760px;font-size:16px;line-height:1.85;color:var(--body);}
.cat-hero-meta{display:flex;flex-wrap:wrap;gap:0;margin-top:28px;}
.cat-hero-meta span{
  display:inline-flex;align-items:baseline;gap:8px;padding:0 24px;font-size:13px;color:var(--muted);
  border-left:1px solid var(--line);
}
.cat-hero-meta span:first-child{padding-left:0;border-left:0;}
.cat-hero-meta b{font-size:22px;font-weight:600;color:var(--primary);line-height:1;}

/* ---------- 锚点条 ---------- */
.anchor-bar{
  position:sticky;top:64px;z-index:900;background:rgba(255,255,255,.96);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.anchor-scroll{
  display:flex;gap:8px;overflow-x:auto;padding:10px 20px;scrollbar-width:none;
  -webkit-overflow-scrolling:touch;
}
.anchor-scroll::-webkit-scrollbar{display:none;}
.anchor-item{
  flex:0 0 auto;display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:999px;
  font-size:14px;font-weight:500;color:#5A6879;white-space:nowrap;
  transition:background-color .18s,color .18s;
}
.anchor-item:hover{color:var(--primary);background:#F3F6FB;}
.anchor-item.active{background:var(--primary-soft);color:var(--primary);}

/* ---------- 通用区块 ---------- */
.section{padding:72px 0;}
.section-tight{padding:56px 0;}
.sec-head{max-width:720px;margin-bottom:40px;}
.sec-head h2{
  font-size:clamp(1.5rem,2.6vw,2.125rem);line-height:1.35;font-weight:600;margin-bottom:12px;
}
.sec-head p{font-size:15px;color:var(--body);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;border-radius:999px;
  border:1px solid var(--line);background:#fff;font-size:12px;letter-spacing:.14em;color:var(--primary);
  margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);}

/* ---------- 查询看板：4 列封面网格 ---------- */
.cover-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.cover-card{
  position:relative;display:block;border-radius:var(--r-card);overflow:hidden;
  aspect-ratio:3/4;background:var(--ph);box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.cover-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.cover-card img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  transition:transform .45s ease;
}
.cover-card:hover img{transform:scale(1.05);}
.cover-inner{
  position:absolute;inset:0;padding:22px 20px;display:flex;flex-direction:column;justify-content:flex-end;
  background:linear-gradient(180deg,rgba(15,30,56,0) 38%,rgba(15,30,56,.86) 100%);
  transition:background .25s ease;
}
.cover-card:hover .cover-inner{background:#fff;}
.cover-inner .chip{
  align-self:flex-start;display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  background:rgba(255,255,255,.18);color:#fff;font-size:12px;letter-spacing:.04em;margin-bottom:10px;
  backdrop-filter:blur(4px);transition:background .25s ease,color .25s ease;
}
.cover-card:hover .chip{background:var(--primary-soft);color:var(--primary);}
.cover-inner h3{font-size:17px;line-height:1.4;color:#fff;margin-bottom:8px;transition:color .25s ease;}
.cover-card:hover h3{color:var(--primary);}
.cover-inner p{font-size:13px;line-height:1.7;color:rgba(255,255,255,.78);transition:color .25s ease;}
.cover-card:hover p{color:var(--body);}

/* ---------- 更新条 ---------- */
.update-strip{
  display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:24px;
  padding:20px 24px;border:1px solid var(--line);border-radius:var(--r-card);background:#fff;box-shadow:var(--sh-1);
}
.update-strip .dot{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--accent);font-weight:600;white-space:nowrap;
}
.update-strip .dot i{width:8px;height:8px;border-radius:50%;background:var(--accent);display:block;animation:pulse 1.8s infinite;}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.45;transform:scale(.82);}}
.update-strip .roll{
  position:relative;overflow:hidden;height:26px;font-size:14px;color:var(--body);
}
.update-strip .roll span{display:block;}
.update-strip .link-arrow{white-space:nowrap;}

.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:500;color:var(--primary);
  border-bottom:1px solid rgba(27,59,111,.34);padding-bottom:2px;transition:border-color .18s ease,color .18s ease;
}
.link-arrow:hover{border-bottom-color:var(--primary);color:var(--primary-dark);}
.link-arrow svg{transition:transform .18s ease;}
.link-arrow:hover svg{transform:translateX(3px);}

/* ---------- 工序节点 ---------- */
.stage-wrap{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.stage-list{border-top:1px solid var(--line);}
.stage-item{
  display:grid;grid-template-columns:88px 1fr 180px 120px;gap:24px;align-items:center;
  padding:26px 8px;border-bottom:1px solid var(--line);
  transition:transform .2s ease,background-color .2s ease;
}
.stage-item:hover{transform:translateX(4px);background:#FBFCFE;}
.stage-no{
  font-size:26px;font-weight:600;color:var(--primary);font-variant-numeric:tabular-nums;letter-spacing:.02em;
}
.stage-body h3{font-size:17px;margin-bottom:6px;}
.stage-body p{font-size:14px;line-height:1.75;color:var(--body);}
.stage-time{font-size:14px;color:var(--body);font-variant-numeric:tabular-nums;}
.stage-time b{color:var(--title);font-weight:600;}
.stage-state{justify-self:end;}
.badge-soft{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--primary-soft);color:var(--primary);font-size:12px;font-weight:500;letter-spacing:.04em;
}
.badge-accent{background:var(--accent-soft);color:#0F8080;}
.badge-line{background:#fff;border:1px solid var(--line);color:var(--body);}

/* ---------- 常查订单榜单 ---------- */
.hot-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:32px;align-items:start;}
.rank-list{border-top:1px solid var(--line);}
.rank-item{
  display:grid;grid-template-columns:56px 1fr auto;gap:18px;align-items:center;
  padding:20px 4px;border-bottom:1px solid var(--line);transition:transform .2s ease;
}
.rank-item:hover{transform:translateX(4px);}
.rank-no{
  font-size:22px;font-weight:600;color:#C6D1E0;font-variant-numeric:tabular-nums;
}
.rank-item:nth-child(-n+3) .rank-no{color:var(--primary);}
.rank-body h3{font-size:16px;margin-bottom:4px;}
.rank-body p{font-size:13px;color:var(--muted);line-height:1.7;}
.rank-val{font-size:14px;color:var(--body);font-variant-numeric:tabular-nums;white-space:nowrap;}
.rank-val b{color:var(--primary);font-weight:600;}

.form-card{
  border:1px solid var(--line);border-radius:var(--r-card);background:#fff;padding:28px;box-shadow:var(--sh-1);
}
.form-card h3{font-size:18px;margin-bottom:8px;}
.form-card>p{font-size:14px;color:var(--muted);margin-bottom:22px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;font-weight:600;color:var(--primary);margin-bottom:8px;}
.field input,.field select{
  width:100%;height:44px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-input);
  background:#fff;color:var(--title);font-size:14px;outline:none;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field input::placeholder{color:#A7B3C2;}
.field input:focus,.field select:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(27,59,111,.12);}
.field-note{font-size:12px;color:var(--muted);margin-top:8px;}
.field-error{font-size:12px;color:var(--danger);margin-top:6px;}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;height:46px;padding:0 26px;width:100%;
  border-radius:var(--r-btn);background:var(--primary);color:#fff;font-size:15px;font-weight:500;border:0;cursor:pointer;
  transition:background-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-main:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;height:46px;padding:0 26px;
  border-radius:var(--r-btn);background:#fff;border:1px solid var(--primary);color:var(--primary);
  font-size:15px;font-weight:500;transition:background-color .18s ease,color .18s ease,transform .18s ease;
}
.btn-ghost:hover{background:var(--primary-soft);color:var(--primary-dark);transform:translateY(-1px);}
.link-row{display:flex;justify-content:space-between;margin-top:18px;font-size:13px;}
.link-row a{color:var(--primary);border-bottom:1px solid rgba(27,59,111,.32);}
.link-row a:hover{border-bottom-color:var(--primary);}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:0.8fr 1.2fr;gap:48px;align-items:start;}
.faq-side{position:sticky;top:132px;}
.faq-side h2{font-size:clamp(1.5rem,2.4vw,2rem);line-height:1.35;margin-bottom:14px;}
.faq-side p{font-size:15px;color:var(--body);margin-bottom:22px;}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--title);font-family:inherit;line-height:1.5;
  transition:color .18s ease;
}
.faq-q:hover{color:var(--primary);}
.faq-item.open .faq-q{color:var(--primary);}
.faq-icon{position:relative;flex:0 0 18px;width:18px;height:18px;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;transition:transform .2s ease,opacity .2s ease;
}
.faq-icon::before{left:0;top:8px;width:18px;height:1.6px;}
.faq-icon::after{top:0;left:8px;width:1.6px;height:18px;}
.faq-item.open .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s ease;}
.faq-a p{padding:0 40px 22px 4px;font-size:15px;line-height:1.85;color:var(--body);}

/* ---------- 相关分类 ---------- */
.cross-box{
  border:1px solid var(--line);border-radius:var(--r-card);background:#fff;padding:36px 32px;box-shadow:var(--sh-1);
}
.cross-box h2{font-size:20px;margin-bottom:8px;}
.cross-box>p{font-size:14px;color:var(--muted);margin-bottom:24px;}
.cross-links{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:26px;}
.cross-link{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:18px 20px;border:1px solid var(--line);border-radius:var(--r-img);background:#fff;
  font-size:15px;font-weight:500;color:var(--title);
  transition:border-color .18s ease,transform .18s ease,box-shadow .18s ease,color .18s ease;
}
.cross-link:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);box-shadow:var(--sh-1);}
.cross-link svg{flex:0 0 auto;color:var(--accent);}
.back-home{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--primary);border-bottom:1px solid rgba(27,59,111,.32);padding-bottom:3px;}
.back-home:hover{border-bottom-color:var(--primary);}

/* ---------- CTA ---------- */
.cta-band{background:var(--primary-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:48px 0;}
.cta-inner h2{font-size:clamp(1.35rem,2.2vw,1.75rem);line-height:1.4;margin-bottom:10px;}
.cta-inner p{font-size:15px;color:var(--body);max-width:560px;}
.cta-actions{display:flex;gap:14px;flex:0 0 auto;}

/* ---------- 页脚 ---------- */
.site-footer{background:#F2F5FA;border-top:1px solid var(--line);padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.f-brand .brand{margin-bottom:18px;}
.f-brand p{font-size:14px;line-height:1.8;color:var(--body);margin-bottom:18px;max-width:280px;}
.f-col h4{font-size:14px;font-weight:600;color:var(--title);margin-bottom:18px;letter-spacing:.04em;}
.f-col ul li{margin-bottom:12px;}
.f-col ul li a{font-size:14px;color:var(--body);}
.f-col ul li a:hover{color:var(--primary);}
.f-contact li{display:flex;gap:10px;font-size:13.5px;color:var(--body);line-height:1.7;margin-bottom:14px;}
.f-contact svg{flex:0 0 auto;margin-top:4px;color:var(--primary);}
.f-contact .num{font-variant-numeric:tabular-nums;}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
}
.footer-bottom p{font-size:12.5px;color:var(--muted);}
.footer-bottom .socials{display:flex;gap:16px;}
.footer-bottom .socials a{color:var(--muted);display:inline-flex;}
.footer-bottom .socials a:hover{color:var(--primary);}

/* ---------- 悬浮 CTA ---------- */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:1100;
  display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 20px;border-radius:999px;
  background:var(--primary);color:#fff;font-size:14px;font-weight:500;
  box-shadow:0 10px 26px -12px rgba(27,59,111,.55);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease,background-color .18s ease;
}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 16px 34px -14px rgba(27,59,111,.62);}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .cover-grid{grid-template-columns:repeat(3,1fr);}
  .stage-item{grid-template-columns:72px 1fr 150px 110px;gap:18px;}
}
@media (max-width:991.98px){
  .nav-main,.nav-actions{display:none;}
  .nav-toggle{display:block;}
  .site-header.drawer-open{background:#fff;}
  .nav-main.open{
    display:flex;flex-direction:column;align-items:stretch;
    position:fixed;left:0;right:0;top:64px;bottom:0;background:#fff;padding:20px 24px 32px;
    overflow-y:auto;z-index:999;
  }
  .nav-main.open a{
    height:auto;padding:16px 0;font-size:20px;font-weight:500;border-bottom:1px solid var(--line);
  }
  .nav-main.open a+a::before{display:none;}
  .nav-main.open a.active::after{display:none;}
  .nav-main.open a.active{color:var(--primary);font-weight:600;}
  .nav-actions.open{
    display:flex;position:fixed;left:0;right:0;bottom:0;top:auto;background:#fff;
    padding:16px 24px calc(20px + env(safe-area-inset-bottom));z-index:1000;
    border-top:1px solid var(--line);
  }
  .nav-actions.open .btn-pill-ghost,.nav-actions.open .btn-sm-main{flex:1;height:46px;}

  .cover-grid{grid-template-columns:repeat(2,1fr);gap:16px;}
  .hot-grid{grid-template-columns:1fr;gap:28px;}
  .faq-layout{grid-template-columns:1fr;gap:24px;}
  .faq-side{position:static;}
  .cross-links{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px;}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:44px 0;}
  .cta-actions{width:100%;flex-direction:column;gap:12px;}
  .cta-actions a{width:100%;}
  .update-strip{grid-template-columns:1fr;gap:12px;}
  .stage-item{grid-template-columns:56px 1fr;gap:8px 16px;padding:22px 4px;}
  .stage-time{grid-column:2;}
  .stage-state{grid-column:2;justify-self:start;}
  .float-cta{
    left:0;right:0;bottom:0;border-radius:12px 12px 0 0;height:52px;justify-content:center;
    padding:0 20px calc(0px + env(safe-area-inset-bottom));
  }
}
@media (max-width:767.98px){
  body{font-size:16px;}
  .section{padding:56px 0;}
  .section-tight{padding:44px 0;}
  .cat-hero{padding:112px 0 40px;}
  .cat-hero h1{font-size:1.75rem;}
  .cat-hero-meta span{padding:0 16px;}
  .cat-hero-meta b{font-size:19px;}
  .anchor-bar{top:58px;}
  .cover-grid{grid-template-columns:1fr;}
  .stage-no{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px;}
  .cross-box{padding:26px 20px;}
  .form-card{padding:22px;}
}
@media (max-width:519.98px){
  .container{padding:0 16px;}
  .brand-text{font-size:15px;}
  .brand-text em{font-size:10px;}
  .cat-hero-meta span{padding:0 12px;font-size:12px;}
  .cat-hero-meta b{font-size:17px;}
}

/* roulang page: category4 */
:root{
  --c-primary:#1B3B6F;
  --c-primary-dark:#142C55;
  --c-primary-soft:#EEF3FA;
  --c-accent:#169C9C;
  --c-accent-soft:#E4F4F4;
  --c-deep:#0F1E38;
  --c-title:#101A28;
  --c-body:#4A5768;
  --c-muted:#8695A8;
  --c-line:#E3E9F2;
  --c-page:#F7F9FC;
  --c-card:#FFFFFF;
  --c-placeholder:#A7B3C2;
  --c-error:#C2483F;

  --r-card:14px;
  --r-img:12px;
  --r-img-lg:16px;
  --r-btn:10px;
  --r-input:10px;
  --r-pill:999px;

  --sh-1:0 1px 2px rgba(16,26,40,.04), 0 8px 24px -12px rgba(16,26,40,.10);
  --sh-2:0 12px 32px -12px rgba(27,59,111,.18);

  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px;
  --sp-5:24px; --sp-6:32px; --sp-7:48px; --sp-8:64px;
  --sp-9:96px; --sp-10:120px;

  --bs-primary:#1B3B6F;
  --bs-link-color:#1B3B6F;
  --bs-link-hover-color:#142C55;
  --bs-border-radius:10px;
  --bs-body-color:#4A5768;
  --bs-body-bg:#F7F9FC;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --bs-border-color:#E3E9F2;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:96px;}
body{
  margin:0;
  font-family:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.85;
  color:var(--c-body);
  background:var(--c-page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--c-primary-dark);}
h1,h2,h3,h4{color:var(--c-title);margin:0;font-weight:600;letter-spacing:-.01em;}
p{margin:0 0 1.1em;}
ul{margin:0;padding:0;list-style:none;}
button,input{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

.container{max-width:1200px;padding-left:20px;padding-right:20px;margin:0 auto;width:100%;}
@media (min-width:1400px){.container{max-width:1280px;}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(180%) blur(8px);
  border-bottom:1px solid transparent;
  transition:height .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.site-header.scrolled{
  border-bottom-color:var(--c-line);
  box-shadow:0 1px 2px rgba(16,26,40,.04),0 6px 18px -14px rgba(16,26,40,.30);
}
.nav-inner{display:flex;align-items:center;gap:24px;height:72px;transition:height .2s ease;}
.site-header.scrolled .nav-inner{height:64px;}

.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:var(--c-primary);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:700;letter-spacing:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;font-size:16px;font-weight:700;color:var(--c-title);}
.brand-text em{font-style:normal;font-size:11px;font-weight:500;color:var(--c-muted);letter-spacing:.06em;margin-top:2px;}

.nav-main{display:flex;align-items:center;gap:0;margin-left:auto;}
.nav-main a{
  position:relative;
  font-size:14px;font-weight:500;letter-spacing:.02em;
  color:var(--c-body);
  padding:0 16px;height:72px;display:flex;align-items:center;
  transition:color .18s ease,height .2s ease;
}
.site-header.scrolled .nav-main a{height:64px;}
.nav-main a + a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:1px;height:14px;background:var(--c-line);
}
.nav-main a:hover{color:var(--c-primary);}
.nav-main a.active{color:var(--c-primary);font-weight:600;}
.nav-main a.active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:22px;
  height:2px;border-radius:2px;background:var(--c-primary);
}
.site-header.scrolled .nav-main a.active::after{bottom:18px;}

.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.btn-pill-ghost{
  display:inline-flex;align-items:center;justify-content:center;
  height:38px;padding:0 20px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);background:#fff;
  color:var(--c-primary);font-size:14px;font-weight:600;letter-spacing:.02em;
  transition:all .18s ease;
}
.btn-pill-ghost:hover{border-color:var(--c-primary);background:var(--c-primary-soft);color:var(--c-primary-dark);}
.btn-sm-main{
  display:inline-flex;align-items:center;justify-content:center;
  height:38px;padding:0 20px;border-radius:var(--r-pill);
  background:var(--c-primary);color:#fff;
  font-size:14px;font-weight:600;letter-spacing:.02em;
  transition:all .18s ease;
}
.btn-sm-main:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);}

.nav-toggle{
  display:none;width:44px;height:44px;border:0;background:transparent;
  margin-left:auto;padding:0;cursor:pointer;position:relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";position:absolute;left:12px;width:20px;height:1.5px;background:var(--c-title);
  transition:transform .2s ease,opacity .2s ease;
}
.nav-toggle span{top:21px;}
.nav-toggle span::before{left:0;top:-6px;}
.nav-toggle span::after{left:0;top:6px;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg);}

.mobile-drawer{
  position:fixed;inset:0;background:#fff;z-index:1200;
  display:none;flex-direction:column;padding:88px 24px 32px;
}
.mobile-drawer.open{display:flex;}
.mobile-drawer a{
  font-size:20px;font-weight:500;color:var(--c-title);
  padding:16px 0;border-bottom:1px solid var(--c-line);
}
.mobile-drawer a.active{color:var(--c-primary);font-weight:600;}
.mobile-drawer .drawer-cta{
  margin-top:auto;border:0;border-radius:var(--r-btn);
  background:var(--c-primary);color:#fff;height:48px;
  display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:600;
}
.drawer-close{
  position:absolute;top:22px;right:20px;width:44px;height:44px;
  border:1px solid var(--c-line);border-radius:50%;background:#fff;color:var(--c-title);
  font-size:18px;display:flex;align-items:center;justify-content:center;cursor:pointer;
}

/* ---------- breadcrumb ---------- */
.crumb-bar{border-bottom:1px solid var(--c-line);background:#fff;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:14px 0;font-size:13px;color:var(--c-muted);}
.crumb a{color:var(--c-muted);}
.crumb a:hover{color:var(--c-primary);}
.crumb i{font-size:10px;color:#C3CDDA;}
.crumb .now{color:var(--c-title);font-weight:600;}

/* ---------- hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  background-image:linear-gradient(90deg,rgba(247,249,252,.96) 0%,rgba(247,249,252,.86) 45%,rgba(247,249,252,.62) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center right;
  border-bottom:1px solid var(--c-line);
}
.cat-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(27,59,111,.10) 1px,transparent 1px);
  background-size:22px 22px;opacity:.5;
}
.hero-inner{position:relative;z-index:2;padding:72px 0 64px;max-width:860px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);background:rgba(255,255,255,.86);
  font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--c-primary);
  margin-bottom:20px;
}
.eyebrow i{color:var(--c-accent);font-size:12px;}
.cat-hero h1{
  font-size:clamp(2rem,4.4vw,3.25rem);
  line-height:1.25;font-weight:700;letter-spacing:-.01em;
  margin-bottom:18px;
}
.cat-hero h1 em{font-style:normal;color:var(--c-primary);}
.cat-hero .lead{font-size:16px;color:var(--c-body);max-width:760px;margin-bottom:28px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:0;margin-bottom:28px;}
.hero-meta div{
  padding:0 24px;border-left:1px solid var(--c-line);
}
.hero-meta div:first-child{padding-left:0;border-left:0;}
.hero-meta strong{
  display:block;font-size:26px;font-weight:600;color:var(--c-title);
  font-variant-numeric:tabular-nums;line-height:1.2;
}
.hero-meta span{font-size:13px;color:var(--c-muted);}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--r-btn);
  background:var(--c-primary);color:#fff;font-size:15px;font-weight:600;
  border:1px solid var(--c-primary);transition:all .18s ease;
}
.btn-main:hover{background:var(--c-primary-dark);border-color:var(--c-primary-dark);color:#fff;transform:translateY(-1px);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--r-btn);
  background:#fff;color:var(--c-primary);font-size:15px;font-weight:600;
  border:1px solid var(--c-line);transition:all .18s ease;
}
.btn-ghost:hover{border-color:var(--c-primary);background:var(--c-primary-soft);color:var(--c-primary-dark);}

/* ---------- section base ---------- */
.section{padding:96px 0;}
.section.tight{padding:72px 0;}
.section-tint{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.sec-head{max-width:760px;margin-bottom:48px;}
.sec-head .tag{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.14em;
  color:var(--c-accent);text-transform:uppercase;margin-bottom:12px;
}
.sec-head h2{font-size:clamp(1.5rem,2.6vw,2.125rem);line-height:1.35;margin-bottom:14px;}
.sec-head p{font-size:15px;color:var(--c-body);margin:0;}

/* ---------- faq layout ---------- */
.faq-layout{display:grid;grid-template-columns:38% 1fr;gap:64px;align-items:start;}
.faq-aside{position:sticky;top:104px;}
.faq-aside h2{font-size:clamp(1.5rem,2.6vw,2.125rem);line-height:1.35;margin-bottom:16px;}
.faq-aside p{font-size:15px;color:var(--c-body);}
.aside-card{
  margin-top:28px;background:var(--c-primary-soft);
  border-radius:var(--r-card);padding:22px 22px 20px;
}
.aside-card h3{font-size:15px;margin-bottom:8px;}
.aside-card p{font-size:13px;color:var(--c-body);margin-bottom:14px;}
.aside-card a{
  font-size:13px;font-weight:600;color:var(--c-primary);
  border-bottom:1px solid rgba(27,59,111,.45);padding-bottom:2px;
}
.aside-card a:hover{border-bottom-color:var(--c-primary);}

.faq-list{max-width:760px;}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-item:first-child{border-top:1px solid var(--c-line);}
.faq-q{
  width:100%;background:transparent;border:0;padding:22px 0;
  display:flex;align-items:flex-start;gap:16px;text-align:left;cursor:pointer;
  font-size:17px;font-weight:600;color:var(--c-title);line-height:1.6;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--c-primary);}
.faq-q .idx{
  font-size:13px;color:var(--c-muted);font-variant-numeric:tabular-nums;
  padding-top:4px;flex-shrink:0;width:28px;
}
.faq-q .txt{flex:1;}
.faq-q .sign{
  flex-shrink:0;width:24px;height:24px;position:relative;margin-top:3px;
}
.faq-q .sign::before,
.faq-q .sign::after{
  content:"";position:absolute;background:var(--c-muted);transition:transform .2s ease,opacity .2s ease;
}
.faq-q .sign::before{left:4px;right:4px;top:11px;height:1.5px;}
.faq-q .sign::after{top:4px;bottom:4px;left:11px;width:1.5px;}
.faq-item.open .faq-q{color:var(--c-primary);}
.faq-item.open .faq-q .sign::after{transform:scaleY(0);opacity:0;}
.faq-item.open .faq-q .sign::before{background:var(--c-primary);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .22s ease;
}
.faq-a .inner{
  padding:0 44px 24px 44px;font-size:15px;color:var(--c-body);
}
.faq-a .inner p:last-child{margin-bottom:0;}
.faq-a .inner ul{margin:0 0 12px;}
.faq-a .inner ul li{
  position:relative;padding-left:18px;margin-bottom:6px;font-size:14.5px;
}
.faq-a .inner ul li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;
  background:var(--c-accent-soft);box-shadow:inset 0 0 0 2px var(--c-accent);
}

/* ---------- check list ---------- */
.check-wrap{display:grid;grid-template-columns:1fr 1fr;gap:0 56px;}
.check-item{
  display:flex;gap:18px;padding:22px 0;border-bottom:1px solid var(--c-line);
}
.check-item:nth-child(1),.check-item:nth-child(2){border-top:1px solid var(--c-line);}
.check-item .ic{
  width:40px;height:40px;flex-shrink:0;border-radius:10px;
  background:var(--c-accent-soft);color:var(--c-accent);
  display:flex;align-items:center;justify-content:center;font-size:16px;
}
.check-item h3{font-size:16px;margin-bottom:6px;}
.check-item p{font-size:14px;color:var(--c-body);margin:0;}

/* ---------- channel strip ---------- */
.chan-grid{display:grid;grid-template-columns:1.25fr 1fr 1fr;gap:24px;}
.chan{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:26px 24px;transition:all .2s ease;
}
.chan:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D6DFEC;}
.chan .no{
  font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--c-accent);
  font-variant-numeric:tabular-nums;display:block;margin-bottom:12px;
}
.chan h3{font-size:17px;margin-bottom:10px;}
.chan p{font-size:14px;margin-bottom:14px;}
.chan ul li{
  font-size:13.5px;color:var(--c-body);padding:8px 0;border-top:1px solid var(--c-line);
  display:flex;justify-content:space-between;gap:12px;
}
.chan ul li span:last-child{color:var(--c-title);font-variant-numeric:tabular-nums;flex-shrink:0;}

/* ---------- cta band ---------- */
.cta-band{background:var(--c-primary-soft);border-top:1px solid var(--c-line);}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:56px 0;
}
.cta-inner h2{font-size:clamp(1.4rem,2.4vw,1.9rem);margin-bottom:10px;}
.cta-inner p{font-size:15px;margin:0;color:var(--c-body);max-width:620px;}
.cta-btns{display:flex;gap:12px;flex-shrink:0;}

/* ---------- cross links ---------- */
.cross{background:#fff;border-top:1px solid var(--c-line);}
.cross-inner{padding:56px 0;}
.cross h2{font-size:18px;margin-bottom:22px;}
.cross-list{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.cross-list a{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:20px 22px;font-size:15px;font-weight:600;color:var(--c-title);
  transition:all .2s ease;
}
.cross-list a:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-3px);box-shadow:var(--sh-2);}
.cross-list a i{color:var(--c-accent);}
.back-home{
  display:inline-flex;align-items:center;gap:8px;margin-top:28px;
  font-size:14px;font-weight:600;color:var(--c-primary);
  border-bottom:1px solid rgba(27,59,111,.45);padding-bottom:2px;
}
.back-home:hover{border-bottom-color:var(--c-primary);}

/* ---------- footer ---------- */
.site-footer{background:#F2F5FA;border-top:1px solid var(--c-line);}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1.2fr 1.4fr;gap:48px;
  padding:64px 0 48px;
}
.f-brand .brand{margin-bottom:16px;}
.f-brand p{font-size:14px;color:var(--c-body);max-width:300px;margin-bottom:16px;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--c-primary);
  border-bottom:1px solid rgba(27,59,111,.45);padding-bottom:2px;
}
.link-arrow:hover{border-bottom-color:var(--c-primary);}
.link-arrow i{font-size:12px;transition:transform .18s ease;}
.link-arrow:hover i{transform:translateX(3px);}
.f-col h4{font-size:14px;margin-bottom:18px;letter-spacing:.02em;}
.f-col ul li{margin-bottom:12px;}
.f-col ul li a{font-size:14px;color:var(--c-body);}
.f-col ul li a:hover{color:var(--c-primary);}
.f-contact li{
  display:flex;gap:10px;font-size:14px;color:var(--c-body);margin-bottom:14px;line-height:1.7;
}
.f-contact li i{color:var(--c-accent);font-size:14px;margin-top:6px;flex-shrink:0;}
.footer-bottom{
  border-top:1px solid var(--c-line);
  padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:12.5px;color:var(--c-muted);margin:0;}
.footer-bottom .socials{display:flex;gap:14px;}
.footer-bottom .socials a{
  width:34px;height:34px;border-radius:50%;border:1px solid var(--c-line);background:#fff;
  display:flex;align-items:center;justify-content:center;color:var(--c-muted);font-size:13px;
  transition:all .18s ease;
}
.footer-bottom .socials a:hover{color:var(--c-primary);border-color:var(--c-primary);}

/* ---------- float cta ---------- */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:900;
  display:inline-flex;align-items:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-pill);
  background:var(--c-primary);color:#fff;font-size:14px;font-weight:600;
  box-shadow:0 12px 32px -12px rgba(27,59,111,.45);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:all .25s ease;
}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-2px);}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .faq-layout{gap:48px;}
  .chan-grid{grid-template-columns:1fr 1fr;}
  .chan:first-child{grid-column:span 2;}
}
@media (max-width:991px){
  .nav-main,.nav-actions{display:none;}
  .nav-toggle{display:block;}
  .faq-layout{grid-template-columns:1fr;gap:32px;}
  .faq-aside{position:static;}
  .check-wrap{grid-template-columns:1fr;gap:0;}
  .check-item:nth-child(2){border-top:0;}
  .cross-list{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .section{padding:72px 0;}
  .hero-inner{padding:56px 0 48px;}
}
@media (max-width:767px){
  .section{padding:56px 0;}
  .cat-hero h1{font-size:1.75rem;}
  .hero-meta div{padding:0 16px;}
  .hero-meta strong{font-size:22px;}
  .chan-grid{grid-template-columns:1fr;}
  .chan:first-child{grid-column:auto;}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:48px 0;}
  .cta-btns{width:100%;flex-direction:column;}
  .cta-btns a{width:100%;}
  .hero-actions{width:100%;}
  .hero-actions a{flex:1;min-width:150px;}
  .faq-a .inner{padding:0 8px 22px 44px;}
  .float-cta{
    left:0;right:0;bottom:0;border-radius:12px 12px 0 0;
    justify-content:center;height:52px;
    padding-bottom:env(safe-area-inset-bottom);
  }
  body{padding-bottom:52px;}
}
@media (max-width:520px){
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .hero-meta{flex-wrap:wrap;gap:16px 0;}
  .hero-meta div{padding:0 14px;}
}