/* roulang page: index */
:root{
  --primary:#2A6FE8;
  --primary-deep:#184C9E;
  --primary-tint:#EAF2FF;
  --primary-soft:#D6E7FF;
  --accent:#F05A2B;
  --accent-deep:#D64A1C;
  --bg-page:#F4F8FD;
  --bg-card:#FFFFFF;
  --bg-soft:#F7FAFF;
  --text-main:#172A4B;
  --text-body:#3D5275;
  --text-weak:#7A89A8;
  --border:#DCE6F2;
  --border-strong:#C6D5E8;
  --radius-xl:22px;
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:9px;
  --shadow-sm:0 2px 8px rgba(27,58,98,.05);
  --shadow-md:0 10px 28px rgba(27,58,98,.08);
  --shadow-lg:0 18px 42px rgba(27,58,98,.12);
  --fontSans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--fontSans);
  background:var(--bg-page);
  color:var(--text-main);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease}
button{font-family:inherit;cursor:pointer;border:none;background:none}
ul,ol,h1,h2,h3,h4,p,figure{margin:0;padding:0}
input,textarea,select{font-family:inherit;font-size:1rem}
.row{max-width:1260px}
.row .columns{padding-left:.9375rem;padding-right:.9375rem}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:4px}
.is-hidden{display:none!important}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.5rem;
  min-height:46px;
  padding:.6rem 1.35rem;
  border-radius:999px;
  font-weight:700;
  font-size:.95rem;
  letter-spacing:.01em;
  line-height:1;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
  white-space:nowrap;
  user-select:none;
  border:1px solid transparent;
}
.btn i{font-size:.9rem}
.btn:disabled,.btn.is-disabled{opacity:.42;cursor:not-allowed;box-shadow:none!important;transform:none!important}
.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-deep);border-color:var(--primary-deep);transform:translateY(-2px);box-shadow:0 10px 24px rgba(36,105,220,.24)}
.btn-accent{background:var(--accent);border-color:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(240,90,43,.22)}
.btn-accent:hover{background:var(--accent-deep);border-color:var(--accent-deep);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(240,90,43,.3)}
.btn-outline{background:#fff;border-color:var(--border-strong);color:var(--primary-deep)}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-tint);transform:translateY(-2px);box-shadow:0 8px 20px rgba(27,58,98,.08)}
.btn-light{background:#fff;border-color:#fff;color:var(--primary-deep)}
.btn-light:hover{background:var(--primary-tint);border-color:var(--primary-tint);transform:translateY(-2px);box-shadow:0 10px 24px rgba(2,28,60,.14)}
.btn-lg{min-height:54px;padding:.85rem 2rem;font-size:1rem;border-radius:999px}
.btn-block{width:100%}

.badge{
  display:inline-flex;
  align-items:center;
  min-height:24px;
  padding:0 .75rem;
  border-radius:999px;
  background:var(--primary-tint);
  color:var(--primary-deep);
  font-size:.78rem;
  font-weight:700;
  letter-spacing:.02em;
  white-space:nowrap;
  line-height:1.4;
}
.badge-navy{background:#E4ECFA;color:#24539F}
.badge-sky{background:#DFF4FF;color:#176A9C}
.badge-orange{background:#FFE9DE;color:#C84519}

.section{padding:96px 0}
.section-head{margin-bottom:44px}
.section-title{
  font-size:clamp(1.7rem,3vw,2.4rem);
  line-height:1.35;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--text-main);
}
.section-sub{
  display:block;
  margin-top:10px;
  font-size:1.02rem;
  color:var(--text-body);
  max-width:760px;
  line-height:1.9;
}

.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(213,225,240,.72);
  box-shadow:0 4px 18px rgba(24,64,114,.04);
}
.header-inside{
  display:flex;
  align-items:center;
  min-height:76px;
  position:relative;
}
.logo-link{
  display:inline-flex;
  align-items:center;
  gap:.6rem;
  flex-shrink:0;
  margin-right:1.35rem;
}
.logo-mark{
  width:42px;
  height:42px;
  border-radius:14px;
  background:linear-gradient(150deg,var(--primary) 0%,#4F88F0 100%);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:#fff;
  font-size:1.35rem;
  box-shadow:0 6px 14px rgba(42,112,232,.25);
}
.logo-text{
  font-size:1.2rem;
  font-weight:900;
  color:var(--text-main);
  letter-spacing:-.01em;
  white-space:nowrap;
}
.logo-text span{color:var(--primary)}
.main-nav{
  flex:1;
  display:flex;
  align-items:center;
  justify-content:center;
}
.nav-links{
  list-style:none;
  display:flex;
  align-items:center;
  gap:2px;
}
.nav-link{
  display:inline-flex;
  align-items:center;
  position:relative;
  height:44px;
  padding:0 .85rem;
  color:var(--text-body);
  font-weight:600;
  font-size:1rem;
  border-radius:10px;
  white-space:nowrap;
}
.nav-link:hover{color:var(--primary);background:var(--primary-tint)}
.nav-link.active{color:var(--primary);font-weight:700}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:.85rem;
  right:.85rem;
  bottom:4px;
  height:3px;
  border-radius:3px;
  background:var(--primary);
}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.header-search{
  display:flex;
  align-items:center;
  gap:.2rem;
  width:228px;
  height:42px;
  padding:0 .6rem 0 .9rem;
  background:#F0F5FB;
  border:1px solid #E1E9F3;
  border-radius:999px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.header-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(42,112,232,.13);background:#fff}
.header-search input{
  flex:1;
  min-width:0;
  border:none;
  background:transparent;
  outline:none;
  font-size:.9rem;
  color:var(--text-main);
}
.header-search-btn{
  width:34px;
  height:34px;
  border-radius:50%;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:var(--text-weak);
  transition:background .2s ease,color .2s ease;
}
.header-search-btn:hover{background:var(--primary-tint);color:var(--primary)}
.menu-toggle{
  display:none;
  width:44px;
  height:44px;
  align-items:center;
  justify-content:center;
  border-radius:12px;
  color:var(--text-main);
  font-size:1.2rem;
  background:#F0F5FB;
  border:1px solid #E2EAF3;
}
.menu-toggle:hover{color:var(--primary);background:var(--primary-tint)}
.header-cta{min-height:42px;padding:.5rem 1.2rem;font-size:.9rem}

.hero{
  position:relative;
  overflow:hidden;
  padding:110px 0 108px;
  background:linear-gradient(135deg,#F2F8FF 0%,#E9F2FF 55%,#F4F9FC 100%);
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  opacity:.07;
  pointer-events:none;
}
.hero::after{
  content:"";
  position:absolute;
  right:-160px;
  bottom:-160px;
  width:460px;
  height:460px;
  background:radial-gradient(circle,rgba(42,112,232,.1) 0%,transparent 70%);
  pointer-events:none;
}
.hero-inner{
  position:relative;
  z-index:2;
  display:flex;
  align-items:center;
  gap:64px;
  max-width:1260px;
  margin:0 auto;
  padding:0 24px;
}
.hero-copy{flex:0 1 58%}
.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:.55rem;
  padding:.38rem .9rem;
  border-radius:999px;
  background:rgba(255,255,255,.72);
  border:1px solid rgba(42,112,232,.16);
  color:var(--primary-deep);
  font-size:.85rem;
  font-weight:700;
  margin-bottom:22px;
}
.hero-eyebrow i{color:var(--accent)}
.hero-title{
  font-size:clamp(2.15rem,4.2vw,3.3rem);
  line-height:1.3;
  font-weight:900;
  letter-spacing:-.02em;
  color:#12305E;
  max-width:12em;
}
.hero-title .hl{color:var(--primary);position:relative;white-space:nowrap}
.hero-title .hl::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:.08em;
  height:.18em;
  background:rgba(42,112,232,.16);
  z-index:-1;
  border-radius:4px;
}
.hero-desc{
  margin-top:20px;
  font-size:1.08rem;
  line-height:1.95;
  color:var(--text-body);
  max-width:35em;
}
.hero-actions{
  margin-top:32px;
  display:flex;
  align-items:center;
  gap:14px;
  flex-wrap:wrap;
}
.hero-points{
  margin-top:32px;
  display:flex;
  flex-wrap:wrap;
  gap:.65rem .85rem;
  list-style:none;
  padding:0;
}
.hero-points li{
  display:inline-flex;
  align-items:center;
  gap:.35rem;
  color:var(--text-body);
  font-size:.86rem;
  font-weight:600;
}
.hero-points i{color:var(--primary);font-size:.9rem}
.hero-visual{
  flex:1 1 42%;
  max-width:520px;
  margin-left:auto;
  position:relative;
}
.hero-media{
  border-radius:28px;
  box-shadow:0 22px 60px rgba(24,70,124,.16);
  border:1px solid rgba(255,255,255,.55);
  overflow:hidden;
  background:#fff;
  transform:rotate(1.2deg);
  transition:transform .4s ease,box-shadow .4s ease;
}
.hero-media img{width:100%;height:480px;object-fit:cover}
.hero-media:hover{transform:rotate(0deg) translateY(-4px);box-shadow:0 28px 64px rgba(24,70,124,.2)}
.hero-float-card{
  position:absolute;
  left:-28px;
  top:58px;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
  padding:1rem 1.1rem;
  border-radius:18px;
  box-shadow:var(--shadow-lg);
  display:flex;
  align-items:center;
  gap:.8rem;
  min-width:220px;
}
.float-icon{
  width:48px;
  height:48px;
  border-radius:14px;
  background:var(--primary-tint);
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:1.3rem;
}
.float-title{font-weight:800;font-size:.95rem;line-height:1.35}
.float-desc{font-size:.8rem;color:var(--text-weak)}
.hero-note{
  position:absolute;
  right:-16px;
  bottom:44px;
  background:var(--accent);
  color:#fff;
  font-size:.78rem;
  font-weight:700;
  padding:.4rem .85rem;
  border-radius:999px;
  box-shadow:0 8px 18px rgba(240,90,43,.24);
}

.pain-area{padding:84px 0 30px}
.pain-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  margin-top:28px;
}
.pain-card{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:1.9rem 1.8rem 1.75rem;
  box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.pain-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:var(--primary-soft)}
.pain-num{
  color:var(--primary);
  font-size:.82rem;
  font-weight:800;
  letter-spacing:.08em;
  display:flex;
  align-items:center;
  gap:.5rem;
  margin-bottom:.9rem;
}
.pain-num::after{content:"";flex:0 0 28px;height:2px;background:var(--primary-soft);border-radius:2px}
.pain-card p{
  font-size:1.05rem;
  color:var(--text-main);
  font-weight:700;
  line-height:1.6;
}
.pain-card i{
  width:38px;
  height:38px;
  border-radius:12px;
  background:var(--primary-tint);
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:1rem;
  margin-bottom:1.1rem;
}

.guide-area{background:#fff;border-top:1px solid #EDF2F8}
.guide-layout{
  display:grid;
  grid-template-columns:3fr 7fr;
  gap:64px;
  align-items:start;
}
.guide-intro-sticky{position:sticky;top:130px}
.guide-intro-sticky h3{
  font-size:1.7rem;
  line-height:1.45;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--text-main);
}
.guide-intro-sticky p{
  margin-top:16px;
  color:var(--text-body);
  font-size:1rem;
  line-height:1.95;
}
.guide-intro-sticky .btn{margin-top:28px}
.guide-step-wrap{
  display:flex;
  flex-direction:column;
  gap:18px;
}
.guide-card{
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:1.8rem 2rem;
  box-shadow:var(--shadow-sm);
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
  position:relative;
  display:grid;
  grid-template-columns:66px 1fr;
  gap:18px 20px;
  align-items:start;
}
.guide-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--primary-soft)}
.guide-num{
  position:absolute;
  top:22px;
  right:24px;
  color:#D9E5F3;
  font-size:1.3rem;
  font-weight:900;
  letter-spacing:.02em;
}
.guide-icon{
  width:60px;
  height:60px;
  border-radius:18px;
  background:var(--primary-tint);
  color:var(--primary);
  align-items:center;
  justify-content:center;
  font-size:1.55rem;
  display:flex;
  grid-row:1;
}
.guide-card h3{
  font-size:1.14rem;
  font-weight:800;
  color:var(--text-main);
  min-height:24px;
  margin-top:0;
}
.guide-card .guide-body{grid-column:2/3;color:var(--text-body);font-size:.98rem;line-height:1.9;margin-top:-4px}
.guide-card .guide-body p + p{margin-top:.8rem}

.metrics-area{background:#F8FBFF}
.metrics-strip{
  background:linear-gradient(120deg,var(--primary-deep) 0%,#24549F 60%,#1D6BC0 100%);
  border-radius:var(--radius-xl);
  position:relative;
  overflow:hidden;
  padding:52px 56px;
  box-shadow:0 18px 44px rgba(25,66,122,.2);
}
.metrics-strip::before{
  content:"";
  position:absolute;
  right:-90px;
  top:-90px;
  width:260px;
  height:260px;
  border-radius:50%;
  background:rgba(255,255,255,.1);
}
.metrics-strip::after{
  content:"";
  position:absolute;
  bottom:-70px;
  left:20%;
  width:180px;
  height:180px;
  border-radius:50%;
  background:rgba(255,255,255,.06);
}
.metrics-top{
  position:relative;
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:36px;
}
.metrics-top h2{
  color:#fff;
  font-size:clamp(1.55rem,2.8vw,2.15rem);
  font-weight:800;
  line-height:1.45;
  max-width:15em;
}
.metrics-top p{
  color:rgba(255,255,255,.72);
  max-width:320px;
  font-size:.92rem;
}
.metrics-grid{
  position:relative;
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:18px;
}
.metric-card{
  background:rgba(255,255,255,.11);
  border:1px solid rgba(255,255,255,.18);
  border-radius:18px;
  backdrop-filter:blur(6px);
  padding:1.4rem 1.5rem;
  display:flex;
  align-items:center;
  gap:1rem;
}
.metric-num{
  font-size:2.2rem;
  font-weight:900;
  color:#fff;
  line-height:1;
  min-width:48px;
  font-variant-numeric:tabular-nums;
}
.metric-num.is-empty{color:rgba(255,255,255,.52);font-weight:600}
.metric-label{color:rgba(255,255,255,.82);font-size:.9rem;font-weight:600;line-height:1.4}

.news-area{background:#F8FBFF}
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px}
.news-head .btn{flex-shrink:0}
.info-feature{
  display:block;
  background:#fff;
  border-radius:var(--radius-lg);
  border:1px solid var(--border);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
  height:100%;
}
.info-feature:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--primary-soft)}
.info-feature-img{position:relative;height:220px;overflow:hidden}
.info-feature-img img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.info-feature:hover .info-feature-img img{transform:scale(1.04)}
.info-feature-img::after{content:"";position:absolute;left:0;right:0;bottom:0;height:40%;background:linear-gradient(180deg,transparent,rgba(10,23,48,.58))}
.info-feature-body{padding:1.6rem 1.7rem 1.7rem}
.info-feature-body h3{
  font-size:1.35rem;
  font-weight:800;
  line-height:1.45;
  margin:12px 0 8px;
  color:var(--text-main);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  transition:color .2s ease;
}
.info-feature:hover h3{color:var(--primary)}
.info-feature-body p{
  color:var(--text-body);
  font-size:.96rem;
  line-height:1.85;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.info-meta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:.6rem;
  margin-top:16px;
  font-size:.82rem;
  color:var(--text-weak);
}
.info-meta span{display:inline-flex;align-items:center;gap:.35rem}
.read-more{
  display:inline-flex;
  align-items:center;
  gap:.45rem;
  color:var(--primary);
  font-weight:700;
  font-size:.88rem;
  transition:gap .2s ease;
}
.read-more i{font-size:.8rem}
.info-feature:hover .read-more{gap:.7rem}
.info-mini-list{display:flex;flex-direction:column;gap:16px;height:100%}
.info-mini{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:1.15rem 1.3rem;
  box-shadow:var(--shadow-sm);
  display:block;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.info-mini:hover{transform:translateY(-3px);border-color:var(--primary-soft);box-shadow:var(--shadow-md)}
.mini-meta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:.5rem;
  margin-bottom:.5rem;
  font-size:.78rem;
  color:var(--text-weak);
}
.mini-meta time{display:inline-flex;align-items:center;gap:.3rem}
.info-mini h4{
  font-size:1rem;
  font-weight:800;
  color:var(--text-main);
  line-height:1.5;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  transition:color .2s ease;
}
.info-mini:hover h4{color:var(--primary)}
.info-mini p{
  color:var(--text-body);
  font-size:.86rem;
  line-height:1.7;
  margin-top:.35rem;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.cms-empty{
  background:#fff;
  border:1px dashed var(--border-strong);
  border-radius:var(--radius-lg);
  padding:64px 20px;
  text-align:center;
  grid-column:1/-1;
}
.cms-empty i{
  font-size:2.2rem;
  color:var(--primary-soft);
  display:block;
  margin-bottom:.6rem;
}
.cms-empty span{color:var(--text-weak);font-size:.95rem}

.faq-area{background:#fff}
.faq-layout{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:58px;
  align-items:start;
}
.faq-panel{display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:#FBFDFF;
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:.4rem 1.5rem;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item.active{border-color:var(--primary);box-shadow:var(--shadow-sm);background:#fff}
.faq-question{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1rem;
  padding:1.1rem 0;
  text-align:left;
  color:var(--text-main);
  font-size:1.05rem;
  font-weight:700;
  line-height:1.6;
  min-height:56px;
}
.faq-question .q-icon{
  width:30px;
  height:30px;
  border-radius:50%;
  background:var(--primary-tint);
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:.75rem;
  flex-shrink:0;
  transition:transform .35s ease,background .3s ease;
}
.faq-item.active .faq-question .q-icon{
  background:var(--primary);
  color:#fff;
  transform:rotate(45deg);
}
.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height .4s ease;
}
.faq-answer p{
  color:var(--text-body);
  font-size:.98rem;
  line-height:1.95;
  padding-bottom:1.3rem;
}
.faq-item.active .faq-answer{max-height:420px}
.faq-side{
  background:#F8FBFF;
  border:1px solid var(--border);
  border-radius:var(--radius-xl);
  padding:2rem 1.9rem;
  position:sticky;
  top:130px;
}
.side-card-title{
  font-size:1.3rem;
  font-weight:800;
  line-height:1.5;
}
.side-card-desc{
  margin-top:.8rem;
  color:var(--text-body);
  font-size:.95rem;
  line-height:1.9;
}
.side-tip{
  display:flex;
  gap:.7rem;
  margin-top:1.4rem;
  background:var(--primary-tint);
  border-radius:var(--radius-md);
  padding:.8rem .9rem;
  font-size:.84rem;
  color:var(--primary-deep);
  line-height:1.6;
}
.side-tip i{margin-top:.25rem}
.side-action{margin-top:1.7rem}
.side-privacy{
  margin-top:1.1rem;
  font-size:.75rem;
  color:var(--text-weak);
  display:flex;
  gap:.45rem;
}
.side-privacy i{font-size:.72rem}

.cta-band{padding:90px 0 70px;background:#fff}
.cta-card{
  background:linear-gradient(120deg,#EFF6FF 0%,#F8FBFF 60%,#FFF4EF 100%);
  border:1px solid var(--border);
  border-radius:var(--radius-xl);
  padding:2.5rem 3rem;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  flex-wrap:wrap;
  overflow:hidden;
  position:relative;
}
.cta-card::before{
  content:"";
  position:absolute;
  right:-30px;
  bottom:-40px;
  width:180px;
  height:180px;
  background:rgba(240,90,43,.07);
  border-radius:50%;
}
.cta-copy h3{font-size:clamp(1.35rem,2.4vw,1.9rem);font-weight:800;line-height:1.45}
.cta-copy p{color:var(--text-body);font-size:1rem;margin-top:.7rem;line-height:1.9}
.cta-action{position:relative;z-index:2}

.site-footer{
  background:#142A4A;
  color:#B9CAE0;
  padding-top:68px;
}
.footer-grid{
  display:grid;
  grid-template-columns:3fr 2fr 2fr 3fr;
  gap:48px;
  padding-bottom:48px;
}
.footer-brand .logo-link{margin-bottom:18px}
.footer-brand .logo-text{color:#fff}
.footer-brand p{
  font-size:.9rem;
  line-height:1.9;
  color:#A7BBD5;
  max-width:34em;
}
.footer-security{
  margin-top:1.5rem;
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.1);
  border-radius:14px;
  padding:.75rem .9rem;
  font-size:.78rem;
  color:#AFC0DA;
  display:flex;
  align-items:flex-start;
  gap:.6rem;
  max-width:380px;
}
.footer-title{
  font-size:.92rem;
  font-weight:800;
  color:#fff;
  margin-bottom:20px;
  letter-spacing:.02em;
}
.footer-links{list-style:none;display:flex;flex-direction:column;gap:13px}
.footer-links a{
  color:#A7BBD5;
  font-size:.9rem;
  position:relative;
  display:inline-flex;
  align-items:center;
  transition:color .2s ease,padding-left .2s ease;
}
.footer-links a:hover{color:#fff;padding-left:6px}
.footer-safe{display:flex;gap:14px;flex-direction:column}
.footer-contact-line{
  display:flex;
  align-items:center;
  gap:1rem;
  background:rgba(255,255,255,.08);
  border-radius:16px;
  padding:1rem 1.15rem;
}
.footer-contact-line i{
  width:42px;
  height:42px;
  border-radius:13px;
  background:rgba(255,255,255,.12);
  color:var(--primary-soft);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:1.2rem;
  flex-shrink:0;
}
.footer-contact-line .line-label{font-size:.8rem;color:#8EA7C6}
.footer-contact-line .line-value{font-size:.98rem;color:#fff;font-weight:700;margin-top:-2px}
.footer-btm{
  border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:.8rem;
  color:#8EA7C6;
}
.footer-btm a{color:#B9CAE0}
.footer-btm a:hover{color:#fff}

.reveal{
  border:0;
  border-radius:24px;
  box-shadow:var(--shadow-lg);
  padding:2rem 2.1rem 1.8rem;
  max-width:620px;
  width:calc(100% - 28px);
  overflow-y:auto;
}
.reveal .close-button{color:#95A7C0;transition:color .2s ease,transform .2s ease}
.reveal .close-button:hover{color:var(--accent);transform:rotate(90deg)}
.reveal-overlay{background:rgba(12,28,50,.5);backdrop-filter:blur(4px)}
.contact-form{display:flex;flex-direction:column;gap:16px}
.form-field label{
  display:block;
  font-size:.85rem;
  font-weight:700;
  color:var(--text-main);
  margin-bottom:8px;
  line-height:1.5;
}
.form-field input,
.form-field select,
.form-field textarea{
  width:100%;
  border:1px solid var(--border-strong);
  background:#FBFDFF;
  border-radius:var(--radius-sm);
  min-height:46px;
  padding:.6rem .85rem;
  color:var(--text-main);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
  font-size:.96rem;
}
.form-field textarea{min-height:104px;resize:vertical}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus{outline:none;border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px rgba(42,112,232,.13)}
.form-note{
  margin-top:-4px;
  font-size:.8rem;
  color:var(--text-weak);
}
.submit-wrap{margin-top:4px}
.privacy-line{
  display:flex;
  gap:.45rem;
  margin-top:.9rem;
  font-size:.78rem;
  color:var(--text-weak);
  line-height:1.6;
  align-items:flex-start;
}
.privacy-line i{margin-top:.2rem;font-size:.7rem}
.form-success{
  text-align:center;
  padding:2.2rem 1rem;
}
.form-success i{
  font-size:3.2rem;
  color:#3CBD7A;
  display:block;
  margin-bottom:1rem;
}
.form-success h4{font-size:1.25rem;font-weight:800;color:var(--text-main)}
.form-success p{color:var(--text-body);font-size:.93rem;margin-top:.4rem}

@media (max-width:1024px){
  .section{padding:76px 0}
  .hero{padding:68px 0 84px}
  .hero-inner{gap:32px;flex-wrap:wrap}
  .hero-copy{flex:0 0 100%}
  .hero-visual{flex:0 0 100%;max-width:620px;margin:0 auto}
  .main-nav{order:4;flex:1 1 100%;justify-content:flex-start}
  .nav-links{
    display:none;
    background:#fff;
    width:100%;
    flex-direction:column;
    gap:0;
    padding:10px 0 14px;
    border-top:1px solid #EDF2F8;
    box-shadow:0 16px 30px rgba(15,40,70,.08);
  }
  .nav-links.open{display:flex}
  .nav-link{width:100%;padding:.6rem 1rem;height:48px;border-radius:10px}
  .nav-link.active::after{display:none}
  .menu-toggle{display:inline-flex}
  .header-search{width:44px;padding:0;justify-content:center;background:#F0F5FB}
  .header-search input{display:none}
  .header-search-btn{width:42px;height:40px}
  .guide-layout{grid-template-columns:1fr;gap:34px}
  .guide-intro-sticky{position:static}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .faq-layout{grid-template-columns:1fr;gap:38px}
  .faq-side{position:static}
  .cta-card{padding:2rem 1.8rem}
}
@media (max-width:768px){
  .section{padding:64px 0}
  .hero{padding:48px 0 68px}
  .pain-grid{grid-template-columns:1fr}
  .guide-card{grid-template-columns:54px 1fr}
  .guide-card .guide-body{grid-column:2/3}
  .metrics-strip{padding:38px 28px}
  .metrics-top{flex-direction:column;align-items:flex-start;gap:14px}
  .metrics-grid{grid-template-columns:1fr;gap:12px}
  .mr-bottom{border-radius:18px}
  .metrics-grid{grid-template-columns:repeat(3,1fr)}
  .metric-card{flex-direction:column;align-items:flex-start;padding:1.1rem}
  .metric-num{font-size:1.7rem}
  .news-head .hide-tablet{display:none}
  .hero-media img{height:340px}
  .hero-float-card{left:0;top:auto;bottom:-22px;min-width:200px}
  .cta-card{text-align:left}
  .footer-grid{grid-template-columns:1fr;gap:36px}
}
@media (min-width:768px) and (max-width:1024px){
  .metrics-grid{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:520px){
  .header-inside{min-height:64px;gap:8px}
  .logo-link{margin-right:.25rem}
  .logo-text{font-size:1.02rem}
  .logo-mark{width:38px;height:38px;font-size:1.05rem}
  .header-search{display:none}
  .header-cta{min-height:40px;padding:.5rem .9rem;font-size:.86rem}
  .hero-copy .btn{width:100%}
  .hero-points{flex-direction:column}
  .hero-desc{font-size:1rem}
  .hero-flex-media{height:280px}
  .hero-float-card{min-width:180px;padding:.8rem .9rem}
  .float-title{font-size:.86rem}
  .guide-card{padding:1.3rem 1.2rem}
  .guide-num{top:14px}
  .guide-card h3{padding-right:10px}
  .guide-card .guide-body{font-size:.93rem}
  .section-head{margin-bottom:32px}
  .section-sub{font-size:.95rem}
  .info-feature-body{padding:1.1rem 1.1rem}
  .cta-card{padding:1.6rem 1.3rem;border-radius:16px}
  .cta-action .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-btm{align-items:flex-start;gap:8px}
}

/* roulang page: article */
:root{
    --primary:#2563EB;
    --primary-deep:#1E3A5F;
    --primary-tint:#EBF2FF;
    --accent:#E86A2C;
    --bg:#F5F8FC;
    --card:#FFFFFF;
    --heading:#16283F;
    --text:#33475F;
    --muted:#6C7D94;
    --border:#D9E2EF;
    --deep-navy:#12283F;
    --radius-lg:20px;
    --radius:14px;
    --radius-sm:10px;
    --shadow:0 8px 28px rgba(37,99,235,.08);
    --shadow-hover:0 16px 42px rgba(37,99,235,.14);
    --transition:all .25s ease;
    --content-width:1280px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
    margin:0;
    font-family:'PingFang SC','Microsoft YaHei','Noto Sans CJK SC','Source Han Sans SC',system-ui,-apple-system,'Segoe UI',sans-serif;
    background:var(--bg);
    color:var(--text);
    line-height:1.8;
    font-size:16px;
    -webkit-font-smoothing:antialiased;
}
body.is-locked{overflow:hidden}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:var(--transition)}
a:hover{color:var(--primary-deep)}
ul,ol{margin:0;padding:0}
p{margin:0}
h1,h2,h3,h4,h5,h6{margin:0;color:var(--heading)}
button{font-family:inherit}
.site-header .row,.site-footer .row{max-width:var(--content-width);margin:0 auto}

body{
font-family:'PingFang SC','Microsoft YaHei','Noto Sans CJK SC','Source Han Sans SC',system-ui,-apple-system,sans-serif;
}

.site-header{
    position:sticky;
    top:0;
    z-index:90;
    background:rgba(255,255,255,.96);
    border-bottom:1px solid rgba(37,99,235,.08);
    box-shadow:0 4px 20px rgba(37,99,235,.05);
    backdrop-filter:blur(8px);
}
.header-inner{
    display:flex;
    align-items:center;
    height:74px;
    justify-content:space-between;
    width:100%;
    max-width:var(--content-width);
    margin:0 auto;
    padding:0 24px;
}
.logo-link{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
    width:40px;height:40px;
    background:var(--primary);
    color:#fff;
    border-radius:12px;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:20px;
    box-shadow:0 6px 14px rgba(37,99,235,.22);
}
.logo-text{
    font-size:21px;
    font-weight:800;
    color:var(--heading);
    letter-spacing:0;
    line-height:1.2;
}
.main-nav{
    display:flex;
    align-items:center;
    margin-left:8px;
}
.nav-links{
    display:flex;
    align-items:center;
    gap:2px;
    list-style:none;
}
.nav-link{
    display:inline-block;
    padding:9px 14px;
    border-radius:999px;
    font-size:15px;
    font-weight:600;
    color:var(--text);
    line-height:1.3;
    white-space:nowrap;
}
.nav-link:hover{
    color:var(--primary);
    background:var(--primary-tint);
}
.nav-link.active{
    color:var(--primary);
    background:var(--primary-tint);
    box-shadow:inset 0 -2px 0 var(--primary);
}
.header-actions{
    display:flex;
    align-items:center;
    gap:14px;
    flex-shrink:0;
}
.search-box{
    display:flex;
    align-items:center;
    background:var(--bg);
    border:1px solid var(--border);
    border-radius:999px;
    padding:4px 5px 4px 16px;
    width:230px;
    height:42px;
    transition:var(--transition);
}
.search-box:focus-within{
    border-color:var(--primary);
    box-shadow:0 0 0 3px rgba(37,99,235,.12);
    background:#fff;
}
.search-box input{
    border:none;
    background:transparent;
    width:100%;
    font-size:14px;
    color:var(--text);
    outline:none;
    min-width:0;
}
.search-box input::placeholder{color:#94A5B8}
.search-box button{
    border:none;
    background:var(--primary-tint);
    color:var(--primary);
    width:32px;
    height:32px;
    border-radius:50%;
    font-size:14px;
    cursor:pointer;
    flex-shrink:0;
    transition:var(--transition);
}
.search-box button:hover{background:var(--primary);color:#fff}
.btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    border-radius:12px;
    padding:12px 24px;
    font-size:15px;
    font-weight:700;
    line-height:1;
    cursor:pointer;
    border:2px solid transparent;
    transition:var(--transition);
    min-height:44px;
}
.btn:focus-visible,.nav-link:focus-visible,a:focus-visible{
    outline:2px solid var(--primary);
    outline-offset:3px;
}
.btn-accent{
    background:var(--accent);
    border-color:var(--accent);
    color:#fff;
}
.btn-accent:hover{
    background:#D95B1F;
    border-color:#D95B1F;
    color:#fff;
    transform:translateY(-2px);
    box-shadow:0 10px 22px rgba(232,106,44,.24);
}
.btn-primary{
    background:var(--primary);
    border-color:var(--primary);
    color:#fff;
}
.btn-primary:hover{
    background:var(--primary-deep);
    border-color:var(--primary-deep);
    color:#fff;
    transform:translateY(-2px);
    box-shadow:0 12px 26px rgba(37,99,235,.22);
}
.btn-ghost{
    background:transparent;
    border-color:var(--border);
    color:var(--text);
}
.btn-ghost:hover{
    border-color:var(--primary);
    color:var(--primary);
    background:var(--primary-tint);
    transform:translateY(-2px);
}
.btn-soft{
    background:var(--primary-tint);
    color:var(--primary);
}
.btn-soft:hover{
    background:#DCEAFE;
    color:var(--primary-deep);
}
.header-cta{
    padding:11px 18px;
    min-height:42px;
    font-size:14px;
}
.mobile-toggle{
    display:none;
    width:44px;
    height:44px;
    border:1px solid var(--border);
    border-radius:12px;
    background:#fff;
    color:var(--heading);
    align-items:center;
    justify-content:center;
    cursor:pointer;
    font-size:19px;
}

.article-hero{
    padding:42px 0 18px;
    background:linear-gradient(180deg,var(--bg) 0%,#EDF3FB 100%);
    border-bottom:1px solid rgba(37,99,235,.06);
}
.article-hero .row{max-width:var(--content-width)}
.article-head-card{
    background:var(--card);
    border:1px solid rgba(37,99,235,.07);
    border-radius:var(--radius-lg);
    box-shadow:var(--shadow);
    padding:38px 42px 42px;
    position:relative;
    overflow:hidden;
}
.article-head-card::before{
    content:"";
    position:absolute;
    inset:0 auto auto 0;
    width:120px;
    height:4px;
    background:linear-gradient(90deg,var(--primary),var(--accent));
}
.breadcrumb{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:6px;
    font-size:13px;
    color:var(--muted);
    margin-bottom:18px;
}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .crumb-sep{color:#AAB6C6;font-size:11px}
.breadcrumb .crumb-now{
    color:#4C5D72;
    font-weight:500;
    max-width:340px;
    overflow:hidden;
    text-overflow:ellipsis;
    white-space:nowrap;
}
.article-title{
    font-size:clamp(29px,4vw,44px);
    font-weight:800;
    line-height:1.4;
    color:var(--heading);
    letter-spacing:0;
    margin-top:4px;
}
.article-meta{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:10px 16px;
    margin-top:24px;
    padding-top:20px;
    border-top:1px dashed var(--border);
    color:var(--muted);
    font-size:14px;
}
.meta-item{
    display:inline-flex;
    align-items:center;
    gap:7px;
    font-size:14px;
}
.meta-item i{color:var(--primary)}
.cat-badge{
    display:inline-flex;
    align-items:center;
    gap:6px;
    background:var(--primary-tint);
    border-radius:999px;
    color:var(--primary);
    font-size:13px;
    font-weight:600;
    padding:6px 14px;
}
.missing-cat{
    background:#F3F6FA;
    border:1px solid var(--border);
    border-radius:999px;
    color:var(--muted);
    font-size:13px;
    padding:6px 16px;
}

.article-body-area{
    padding:40px 0 24px;
}
.article-body-wrap{
    max-width:900px;
    margin:0 auto;
    background:#fff;
    border:1px solid rgba(37,99,235,.06);
    border-radius:var(--radius-lg);
    padding:clamp(24px,4vw,52px);
    box-shadow:var(--shadow);
}
.article-content{
    font-size:17px;
    line-height:1.95;
    color:var(--text);
}
.article-content p{
    margin:0 0 24px;
}
.article-content h2{
    font-size:26px;
    font-weight:800;
    margin:40px 0 16px;
    padding-left:14px;
    border-left:4px solid var(--primary);
    line-height:1.4;
}
.article-content h3{
    font-size:21px;
    font-weight:700;
    margin:30px 0 12px;
    line-height:1.5;
}
.article-content h4{
    font-size:17px;
    font-weight:700;
    margin:22px 0 10px;
}
.article-content ul,.article-content ol{
    margin:0 0 24px;
    padding-left:22px;
}
.article-content li{
    margin-bottom:10px;
}
.article-content img{
    border-radius:var(--radius);
    border:1px solid var(--border);
    object-fit:cover;
    height:auto;
    margin:26px 0;
    max-width:100%;
}
.article-content blockquote{
    background:#F4F7FD;
    border-left:4px solid var(--primary);
    border-radius:0 14px 14px 0;
    padding:20px 24px;
    color:#41576F;
    margin:28px 0;
    font-weight:500;
}
.article-content a{
    font-weight:600;
    border-bottom:1px solid rgba(37,99,235,.25);
}
.article-content a:hover{border-bottom-color:var(--primary)}
.article-content table{
    width:100%;
    margin:26px 0;
    border-collapse:collapse;
    background:#fff;
    border-radius:12px;
    overflow:hidden;
    font-size:15px;
}
.article-content th{
    background:var(--primary-tint);
    color:var(--heading);
    font-weight:700;
    text-align:left;
}
.article-content th,.article-content td{
    border:1px solid var(--border);
    padding:12px 16px;
}
.article-content pre{
    background:#16283F;
    color:#C7D9F0;
    border-radius:12px;
    padding:20px 22px;
    overflow-x:auto;
    font-size:14px;
    line-height:1.7;
    margin:24px 0;
}
.article-content code{
    background:#EAF0F8;
    color:#1D3B62;
    border-radius:5px;
    padding:2px 7px;
    font-size:14px;
    font-family:ui-monospace,SFMono-Regular,Consolas,Menlo,monospace;
}
.article-content pre code{
    background:transparent;
    color:inherit;
    padding:0;
}

.article-footer-actions{
    display:flex;
    flex-wrap:wrap;
    gap:12px;
    align-items:center;
    justify-content:space-between;
    margin-top:40px;
    padding-top:24px;
    border-top:1px solid var(--border);
}
.post-action-group{
    display:inline-flex;
    flex-wrap:wrap;
    gap:10px;
}
.btn-sm{
    padding:10px 18px;
    font-size:14px;
    min-height:42px;
}

.missing-article{
    text-align:center;
    padding:50px 20px;
}
.missing-article .icon-missing{
    width:76px;
    height:76px;
    background:var(--primary-tint);
    border-radius:50%;
    margin:0 auto 24px;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:28px;
    color:var(--primary);
}
.missing-article h2{
    font-size:24px;
    font-weight:700;
    margin-bottom:10px;
}
.missing-article p{
    color:var(--muted);
    margin-bottom:22px;
}

.related-section{
    padding:64px 0 40px;
}
.related-section .row{max-width:var(--content-width)}
.section-head{
    display:flex;
    align-items:flex-end;
    justify-content:space-between;
    gap:20px;
    margin-bottom:32px;
    flex-wrap:wrap;
}
.section-head h2{
    font-size:clamp(24px,2.6vw,32px);
    font-weight:800;
    line-height:1.35;
    position:relative;
    padding-bottom:12px;
}
.section-head h2::after{
    content:"";
    display:block;
    width:52px;
    height:4px;
    background:var(--accent);
    border-radius:4px;
    margin-top:10px;
}
.section-head .section-sub{
    color:var(--muted);
    font-size:15px;
    max-width:520px;
}
.related-cards{
    display:flex;
    flex-wrap:wrap;
}
.related-card{
    display:flex;
    flex-direction:column;
    background:#fff;
    border:1px solid rgba(37,99,235,.08);
    border-radius:var(--radius-lg);
    box-shadow:var(--shadow);
    transition:var(--transition);
    height:100%;
    overflow:hidden;
}
.related-card:hover{
    transform:translateY(-5px);
    box-shadow:var(--shadow-hover);
    border-color:rgba(37,99,235,.2);
}
.related-media{
    aspect-ratio:16 / 9;
    overflow:hidden;
    background:var(--primary-tint);
}
.related-media img{
    width:100%;
    height:100%;
    object-fit:cover;
    transition:transform .4s ease;
}
.related-card:hover .related-media img{transform:scale(1.04)}
.related-body{
    padding:22px 24px 24px;
    display:flex;
    flex-direction:column;
    flex:1;
}
.related-meta{
    display:inline-flex;
    align-items:center;
    gap:7px;
    font-size:12px;
    color:var(--muted);
    margin-bottom:10px;
}
.related-meta i{color:var(--primary)}
.related-body h3{
    font-size:19px;
    font-weight:700;
    line-height:1.5;
    margin-bottom:10px;
    color:var(--heading);
}
.related-body p{
    font-size:14px;
    color:var(--muted);
    line-height:1.75;
    margin-bottom:18px;
    flex:1;
}
.text-link{
    display:inline-flex;
    align-items:center;
    gap:7px;
    font-size:14px;
    font-weight:700;
    color:var(--primary);
    transition:var(--transition);
}
.related-card:hover .text-link{
    color:var(--accent);
    gap:10px;
}

.contact-strip{
    padding:20px 0 70px;
}
.contact-strip .row{max-width:var(--content-width)}
.contact-tip-card{
    background:linear-gradient(135deg,#FFFFFF 0%,#EDF4FF 100%);
    border:1px solid rgba(37,99,235,.1);
    border-radius:var(--radius-lg);
    box-shadow:var(--shadow);
    padding:30px 34px;
    display:flex;
    align-items:center;
    gap:22px;
    flex-wrap:wrap;
    justify-content:space-between;
}
.contact-tip-left{
    display:flex;
    align-items:flex-start;
    gap:18px;
    flex:1;
    min-width:280px;
}
.tip-icon{
    width:54px;
    height:54px;
    flex-shrink:0;
    border-radius:16px;
    background:var(--primary-tint);
    color:var(--primary);
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:22px;
}
.tip-title{
    font-size:19px;
    font-weight:700;
    color:var(--heading);
    margin-bottom:4px;
}
.tip-desc{
    font-size:14px;
    color:var(--muted);
    line-height:1.7;
}

.site-footer{
    background:var(--deep-navy);
    color:#B9C9DD;
    padding:70px 0 30px;
    margin-top:20px;
}
.site-footer .row{
    max-width:var(--content-width);
}
.footer-grid{
    display:grid;
    grid-template-columns:1.5fr .9fr .8fr 1fr;
    gap:44px;
    margin-bottom:44px;
}
.footer-brand .logo-link{
    margin-bottom:18px;
    color:#fff;
}
.footer-brand .logo-text{
    color:#fff;
    font-size:22px;
    font-weight:800;
}
.footer-brand .logo-mark{
    background:#fff;
    color:var(--primary);
}
.footer-brand p{
    font-size:14px;
    line-height:1.9;
    color:#9FB1C9;
    margin-bottom:18px;
    max-width:360px;
}
.footer-security{
    display:flex;
    align-items:flex-start;
    gap:10px;
    background:rgba(255,255,255,.05);
    border-radius:12px;
    padding:13px 16px;
    font-size:12px;
    line-height:1.7;
    color:#8FA4C0;
}
.footer-security i{
    color:#F1B86A;
    font-size:16px;
    margin-top:3px;
}
.footer-title{
    color:#fff;
    font-size:16px;
    font-weight:700;
    margin-bottom:18px;
    letter-spacing:.2px;
}
.footer-links{
    list-style:none;
    display:flex;
    flex-direction:column;
    gap:12px;
}
.footer-links a{
    color:#9FB1C9;
    font-size:14px;
    display:inline-flex;
    align-items:center;
    gap:7px;
    transition:var(--transition);
}
.footer-links a:hover{
    color:#fff;
    padding-left:4px;
}
.footer-contact-line{
    display:flex;
    align-items:flex-start;
    gap:12px;
    margin-bottom:20px;
}
.footer-contact-line i{
    width:38px;
    height:38px;
    border-radius:10px;
    background:rgba(255,255,255,.06);
    color:#BBD3F5;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:16px;
}
.line-label{
    font-size:12px;
    color:#768CA9;
}
.line-value{
    color:#E3EDFA;
    font-size:14px;
    line-height:1.5;
    margin-top:2px;
}
.footer-btm{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    justify-content:space-between;
    gap:10px;
    border-top:1px solid rgba(255,255,255,.08);
    padding-top:24px;
    font-size:12px;
    color:#6E86A5;
}

.contact-reveal{
    max-width:620px;
    width:92%;
    border:0;
    border-radius:22px;
    padding:0;
    overflow:hidden;
    box-shadow:0 30px 60px rgba(14,35,66,.28);
    background:#fff;
}
.contact-reveal .close-button{
    position:absolute;
    top:16px;
    right:18px;
    width:36px;
    height:36px;
    border-radius:50%;
    background:var(--bg);
    color:var(--muted);
    font-size:20px;
    line-height:36px;
    text-align:center;
    z-index:5;
}
.contact-reveal .close-button:hover{
    background:#F8DFD3;
    color:var(--accent);
}
.contact-modal-body{
    padding:36px 36px 34px;
}
.contact-modal-head{
    display:flex;
    align-items:flex-start;
    gap:16px;
    margin-bottom:28px;
}
.contact-modal-head .modal-icon{
    width:52px;
    height:52px;
    border-radius:15px;
    background:var(--primary-tint);
    color:var(--primary);
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:22px;
    flex-shrink:0;
}
.contact-modal-head h3{
    font-size:22px;
    font-weight:800;
    margin-bottom:4px;
    color:var(--heading);
}
.contact-modal-head p{
    font-size:14px;
    color:var(--muted);
    line-height:1.7;
}
.contact-reveal label{
    font-size:14px;
    font-weight:600;
    color:var(--heading);
    display:block;
    margin-bottom:7px;
}
.contact-reveal input,
.contact-reveal select,
.contact-reveal textarea{
    border:1px solid var(--border);
    background:var(--bg);
    border-radius:12px;
    height:46px;
    padding:0 14px;
    font-size:14px;
    width:100%;
    color:var(--text);
    outline:none;
    transition:var(--transition);
    box-shadow:none;
    font-family:inherit;
}
.contact-reveal textarea{
    min-height:116px;
    padding:12px 14px;
    resize:vertical;
    line-height:1.6;
}
.contact-reveal input:focus,
.contact-reveal select:focus,
.contact-reveal textarea:focus{
    border-color:var(--primary);
    background:#fff;
    box-shadow:0 0 0 3px rgba(37,99,235,.1);
}
.form-message{
    display:none;
    background:#EFF7F1;
    color:#1F6A45;
    border-radius:10px;
    padding:12px 16px;
    font-size:14px;
    margin-top:12px;
}
.privacy-note{
    text-align:center;
    color:#8797AB;
    font-size:12px;
    line-height:1.6;
    margin-top:14px;
}
.contact-reveal .btn-submit{
    width:100%;
    margin-top:18px;
}
.btn-submit[disabled]{
    opacity:.7;
    cursor:not-allowed;
}

@media (max-width:1024px){
    .header-inner{
        padding:0 16px;
    }
    .search-box{
        width:44px;
        padding:0;
        justify-content:center;
    }
    .search-box input{
        display:none;
    }
    .search-box button{
        background:transparent;
    }
    .header-cta{
        padding:10px 14px;
        font-size:14px;
    }
    .mobile-toggle{
        display:inline-flex;
    }
    .main-nav{
        position:absolute;
        right:16px;
        top:calc(100% + 8px);
        z-index:99;
    }
    .nav-links{
        display:none;
        flex-direction:column;
        background:#fff;
        box-shadow:0 18px 48px rgba(37,99,235,.2);
        border:1px solid var(--border);
        border-radius:18px;
        min-width:240px;
        padding:14px;
    }
    .nav-links.open{
        display:flex;
    }
    .nav-link.active{
        background:var(--primary-tint);
    }
    .footer-grid{
        grid-template-columns:1fr 1fr;
        gap:36px;
    }
    .article-around{
        flex-direction:column;
        align-items:flex-start;
    }
}
@media (max-width:768px){
    .header-inner{
        height:64px;
    }
    .header-cta{
        display:none;
    }
    .logo-text{
        font-size:18px;
    }
    .logo-mark{
        width:34px;
        height:34px;
        border-radius:10px;
        font-size:17px;
    }
    .article-hero{
        padding:24px 0 12px;
    }
    .article-head-card{
        padding:26px 22px 28px;
    }
    .article-title{
        font-size:28px;
        line-height:1.4;
    }
    .article-meta{
        gap:10px 12px;
    }
    .article-body-area{
        padding:24px 16px 16px;
    }
    .article-body-wrap{
        padding:22px 18px;
    }
    .article-content{
        font-size:16px;
        line-height:1.9;
    }
    .related-section{
        padding:42px 16px 24px;
    }
    .contact-strip{
        padding:0 16px 44px;
    }
    .contact-tip-card{
        padding:22px;
    }
    .footer-grid{
        grid-template-columns:1fr;
        gap:30px;
    }
    .footer-btm{
        flex-direction:column;
        text-align:center;
    }
    .contact-modal-body{
        padding:26px 20px 22px;
    }
    .post-action-group{
        width:100%;
        justify-content:center;
    }
}
@media (max-width:520px){
    .nav-links{
        position:fixed;
        top:64px;
        right:10px;
        left:10px;
        width:auto;
        min-width:auto;
    }
    .nav-link{
        font-size:16px;
        padding:12px 18px;
        width:100%;
    }
    .search-box{
        width:38px;
    }
    .footer-grid{
        grid-template-columns:1fr;
    }
    .article-footer-actions{
        justify-content:center;
    }
}

/* roulang page: category1 */
:root {
  --primary: #176BEE;
  --primary-deep: #0A3D62;
  --primary-darker: #082F4B;
  --primary-tint: #EAF2FF;
  --accent: #F26B38;
  --accent-deep: #D9561F;
  --bg: #F5F8FC;
  --bg-white: #FFFFFF;
  --text: #1C2E42;
  --text-2: #49657D;
  --text-3: #7C93A8;
  --border: rgba(48, 102, 157, 0.13);
  --border-strong: rgba(23, 107, 238, 0.22);
  --radius-xl: 24px;
  --radius-lg: 18px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --shadow-sm: 0 8px 20px rgba(15, 56, 106, 0.06);
  --shadow-md: 0 18px 42px rgba(15, 56, 106, 0.1);
  --shadow-accent: 0 12px 28px rgba(242, 107, 56, 0.24);
  --font: "PingFang SC", "微软雅黑", "Noto Sans CJK SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.is-locked {
  overflow: hidden;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color .2s ease, background .2s ease, border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

button,
input,
select,
textarea {
  font-family: inherit;
  font-size: inherit;
}

input,
select,
textarea {
  outline: none;
}

h1,
h2,
h3,
h4,
p {
  margin: 0;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

.row {
  max-width: 80rem;
  margin: 0 auto;
  padding: 0 24px;
  width: auto;
}

.section {
  padding: 88px 0;
}

section[id],
div[id] {
  scroll-margin-top: 100px;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
  border-radius: 6px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 8px 24px rgba(18, 56, 105, 0.05);
  backdrop-filter: blur(10px);
}

.header-inner {
  min-height: 76px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.logo-link {
  order: 1;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  border-radius: 12px;
}

.logo-mark {
  width: 46px;
  height: 46px;
  border-radius: 15px;
  background: linear-gradient(145deg, #2B7FFF, var(--primary-deep));
  color: #fff;
  font-size: 20px;
  display: inline-grid;
  place-items: center;
  box-shadow: 0 8px 18px rgba(23, 107, 238, 0.18);
}

.logo-text {
  font-size: 23px;
  font-weight: 800;
  color: var(--primary-deep);
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.main-nav {
  order: 2;
  flex: 1;
  display: flex;
  justify-content: center;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2px;
}

.nav-link {
  display: inline-block;
  padding: 9px 15px;
  border-radius: 999px;
  color: var(--text-2);
  font-size: 15px;
  font-weight: 600;
}

.nav-link:hover {
  background: var(--primary-tint);
  color: var(--primary);
}

.nav-link.active {
  background: var(--primary-tint);
  color: var(--primary);
  box-shadow: inset 0 0 0 1px rgba(23, 107, 238, 0.1);
}

.header-actions {
  order: 3;
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-search {
  width: 220px;
  height: 42px;
  border: 1px solid transparent;
  background: #F3F7FC;
  border-radius: 999px;
  display: flex;
  align-items: center;
  padding: 0 14px;
  transition: background .2s, border-color .2s;
}

.header-search:focus-within {
  background: #fff;
  border-color: rgba(23, 107, 238, 0.22);
}

.header-search input {
  width: 100%;
  border: 0;
  background: transparent;
  color: var(--text);
  font-size: 14px;
}

.header-search input::placeholder {
  color: var(--text-3);
}

.header-search button {
  border: 0;
  background: transparent;
  color: var(--text-2);
  font-size: 15px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  cursor: pointer;
}

.header-search button:hover {
  color: var(--primary);
}

.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 42px;
  padding: 0 22px;
  white-space: nowrap;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  box-shadow: 0 8px 20px rgba(242, 107, 56, 0.16);
}

.header-cta:hover {
  background: var(--accent-deep);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-accent);
}

.hamburger {
  order: 4;
  display: none;
  width: 44px;
  height: 44px;
  margin-left: 2px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #fff;
  cursor: pointer;
}

.hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  border-radius: 999px;
  background: var(--primary-deep);
  transition: transform .25s, opacity .25s;
}

.hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.open span:nth-child(2) {
  opacity: 0;
}

.hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.page-lead {
  background: linear-gradient(180deg, #EDF5FF 0%, #F8FBFF 100%);
  border-bottom: 1px solid var(--border);
  padding: 56px 0 54px;
}

.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-3);
  margin-bottom: 18px;
}

.breadcrumbs a {
  color: var(--text-2);
}

.breadcrumbs a:hover {
  color: var(--primary);
}

.breadcrumb-sep {
  color: #B7CBDE;
}

.page-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--primary-tint);
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
}

.page-kicker::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.page-heading {
  margin-top: 20px;
}

.page-heading h1 {
  max-width: 860px;
  font-size: clamp(34px, 5vw, 53px);
  line-height: 1.22;
  font-weight: 800;
  color: var(--primary-deep);
  letter-spacing: -0.025em;
}

.page-heading h1 .text-accent-word {
  color: var(--primary);
}

.page-lead-desc {
  max-width: 820px;
  margin-top: 16px;
  font-size: 17px;
  line-height: 1.9;
  color: var(--text-2);
}

.lead-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  height: 50px;
  padding: 0 28px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 700;
  border: 0;
  cursor: pointer;
  transition: transform .2s, box-shadow .2s, background .2s, color .2s, border-color .2s;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-accent {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 10px 24px rgba(242, 107, 56, 0.18);
}

.btn-accent:hover {
  background: var(--accent-deep);
  color: #fff;
  box-shadow: var(--shadow-accent);
}

.btn-outline {
  background: #fff;
  border: 1px solid rgba(23, 107, 238, 0.28);
  color: var(--primary);
}

.btn-outline:hover {
  border-color: var(--primary);
  background: var(--primary-tint);
  color: var(--primary);
}

.section-head {
  margin-bottom: 48px;
}

.section-head.center {
  text-align: center;
}

.section-head.center p {
  margin-left: auto;
  margin-right: auto;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--primary-tint);
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
}

.section-head h2 {
  margin-top: 14px;
  font-size: clamp(27px, 3.6vw, 36px);
  line-height: 1.3;
  color: var(--primary-deep);
  font-weight: 800;
  letter-spacing: -0.02em;
}

.section-head p {
  max-width: 640px;
  margin-top: 12px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-2);
}

.steps-section {
  padding-bottom: 72px;
}

.step-rail {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  column-gap: 28px;
  padding: 14px 0 8px;
}

.step-rail::before {
  content: "";
  position: absolute;
  left: 7%;
  right: 7%;
  top: 42px;
  height: 2px;
  background: repeating-linear-gradient(90deg, rgba(23, 107, 238, 0.36) 0, rgba(23, 107, 238, 0.36) 8px, transparent 8px, transparent 16px);
}

.step-point {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 10px;
}

.step-circle {
  width: 58px;
  height: 58px;
  margin: 0 auto;
  border-radius: 50%;
  background: #fff;
  border: 2px solid var(--primary);
  box-shadow: 0 0 0 7px var(--bg), 0 6px 16px rgba(23, 107, 238, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 17px;
  font-weight: 800;
}

.step-title {
  margin-top: 22px;
  font-size: 18px;
  font-weight: 700;
  color: var(--primary-deep);
}

.step-desc {
  max-width: 260px;
  margin: 10px auto 0;
  color: var(--text-2);
  font-size: 15px;
  line-height: 1.85;
}

.access-section {
  background: #fff;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.access-banner {
  background: var(--bg-white);
  border-radius: 26px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
}

.access-media {
  background: #EAF1F9;
  min-height: 320px;
}

.access-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.access-copy {
  padding: 44px 48px;
}

.access-copy .eyebrow {
  background: var(--primary-tint);
}

.access-copy h2 {
  margin-top: 14px;
  font-size: clamp(24px, 3vw, 31px);
  line-height: 1.35;
  color: var(--primary-deep);
  font-weight: 800;
  letter-spacing: -0.02em;
}

.access-copy>p {
  margin-top: 14px;
  color: var(--text-2);
  font-size: 16px;
  line-height: 1.9;
}

.access-bullets {
  display: grid;
  gap: 12px;
  margin-top: 28px;
}

.access-bullet {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: #F8FBFF;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px 18px;
}

.access-bullet>i {
  width: 40px;
  height: 40px;
  flex: 0 0 40px;
  display: inline-grid;
  place-items: center;
  border-radius: 13px;
  background: var(--primary-tint);
  color: var(--primary);
  font-size: 16px;
}

.access-bullet strong {
  display: block;
  color: var(--primary-deep);
  font-size: 15px;
  font-weight: 700;
}

.access-bullet span {
  display: block;
  margin-top: 4px;
  color: var(--text-2);
  font-size: 14px;
  line-height: 1.75;
}

.prepare-section {
  background: var(--bg);
}

.prepare-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(310px, 0.72fr);
  gap: 44px;
  align-items: center;
}

.prepare-copy p.lead-copy {
  margin-top: 12px;
  color: var(--text-2);
}

.prepare-list {
  display: grid;
  gap: 12px;
  margin-top: 30px;
}

.prepare-list .info-row {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 16px 18px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 16px;
}

.prepare-list .row-icon {
  width: 42px;
  height: 42px;
  flex: 0 0 42px;
  display: inline-grid;
  place-items: center;
  border-radius: 14px;
  background: var(--primary-tint);
  color: var(--primary);
}

.prepare-list h3 {
  color: var(--primary-deep);
  font-size: 16px;
  font-weight: 700;
}

.prepare-list p {
  color: var(--text-2);
  font-size: 14px;
  line-height: 1.75;
  margin-top: 3px;
}

.prepare-aside {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 24px;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.prepare-aside img {
  width: 100%;
  object-fit: cover;
}

.prepare-note {
  display: flex;
  gap: 14px;
  padding: 24px 24px 26px;
  align-items: flex-start;
  background: #fff;
}

.prepare-note i {
  width: 36px;
  height: 36px;
  flex: 0 0 36px;
  display: inline-grid;
  place-items: center;
  border-radius: 12px;
  color: #fff;
  background: var(--accent);
  font-size: 14px;
}

.prepare-note p {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.8;
}

.related-section {
  background: #fff;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.related-card {
  display: block;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 30px 28px;
  min-height: 220px;
  position: relative;
  transition: transform .2s, border-color .2s, box-shadow .2s, background .2s;
}

.related-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 24px;
  bottom: 24px;
  width: 4px;
  border-radius: 0 4px 4px 0;
  background: var(--primary);
  opacity: .55;
}

.related-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-md);
  background: #fff;
}

.related-card .related-kicker {
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
}

.related-card h3 {
  margin-top: 10px;
  font-size: 20px;
  color: var(--primary-deep);
  font-weight: 800;
  letter-spacing: -0.01em;
}

.related-card p {
  margin-top: 10px;
  color: var(--text-2);
  font-size: 14px;
  line-height: 1.8;
}

.related-more {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 18px;
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
}

.related-card:hover .related-more {
  gap: 12px;
}

.faq-section {
  background: var(--bg);
}

.faq-layout {
  max-width: 960px;
}

.faq-list {
  display: grid;
  gap: 14px;
}

.faq-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 18px;
  overflow: hidden;
  transition: border-color .2s, box-shadow .2s;
}

.faq-card[open] {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-sm);
}

.faq-card summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 14px;
  cursor: pointer;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 700;
  color: var(--primary-deep);
  user-select: none;
}

.faq-card summary::-webkit-details-marker {
  display: none;
}

.faq-card summary:hover {
  color: var(--primary);
}

.faq-qm {
  width: 30px;
  height: 30px;
  flex: 0 0 30px;
  border-radius: 10px;
  display: inline-grid;
  place-items: center;
  background: var(--primary-tint);
  color: var(--primary);
  font-size: 13px;
  font-weight: 800;
}

.faq-icon {
  width: 28px;
  height: 28px;
  margin-left: auto;
  flex: 0 0 28px;
  border: 1px solid var(--border);
  border-radius: 50%;
  display: inline-grid;
  place-items: center;
  color: var(--text-2);
  background: var(--bg);
  transition: transform .3s, background .2s, color .2s, border-color .2s;
}

.faq-card[open] .faq-icon {
  transform: rotate(180deg);
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

.faq-answer {
  padding: 0 24px 24px 68px;
}

.faq-answer p {
  color: var(--text-2);
  font-size: 15px;
  line-height: 1.95;
}

.help-cta {
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 46px 0;
}

.cta-flex {
  display: flex;
  align-items: center;
  gap: 28px;
  justify-content: space-between;
  background: #F8FBFF;
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 32px 36px;
  flex-wrap: wrap;
}

.cta-flex h2 {
  font-size: 24px;
  font-weight: 800;
  color: var(--primary-deep);
  line-height: 1.4;
}

.cta-flex p {
  margin-top: 8px;
  color: var(--text-2);
  font-size: 15px;
}

.cta-flex .btn {
  flex: 0 0 auto;
}

.reveal {
  background: #fff;
  border: 0;
  border-radius: 24px;
  padding: 36px;
  max-width: 620px;
  box-shadow: 0 28px 80px rgba(10, 50, 88, 0.2);
  color: var(--text);
}

.reveal .close-button {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 44px;
  height: 44px;
  font-size: 28px;
  line-height: 1;
  display: inline-grid;
  place-items: center;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--text-3);
  cursor: pointer;
}

.reveal .close-button:hover {
  background: var(--primary-tint);
  color: var(--primary);
}

.modal-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 12px;
}

.modal-head i {
  width: 48px;
  height: 48px;
  border-radius: 15px;
  display: inline-grid;
  place-items: center;
  background: var(--primary-tint);
  color: var(--primary);
  font-size: 20px;
}

.modal-head h2 {
  font-size: 22px;
  font-weight: 800;
  color: var(--primary-deep);
}

.modal-desc {
  color: var(--text-2);
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 14px;
}

.contact-form label {
  display: block;
  margin: 14px 0 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}

.contact-form .field {
  width: 100%;
  height: 48px;
  padding: 0 14px;
  border: 1px solid var(--border);
  background: #F8FBFF;
  border-radius: 12px;
  color: var(--text);
  transition: border-color .2s, background .2s, box-shadow .2s;
}

.contact-form textarea.field {
  height: auto;
  min-height: 100px;
  padding: 12px 14px;
  resize: vertical;
  line-height: 1.7;
}

.contact-form .field:focus {
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(23, 107, 238, 0.09);
}

.contact-form .field::placeholder {
  color: #A6BAD0;
}

.contact-form .btn-block {
  width: 100%;
  margin-top: 22px;
}

.privacy-note {
  margin-top: 12px;
  font-size: 12px;
  color: var(--text-3);
  text-align: center;
}

.form-feedback {
  display: none;
  margin-top: 12px;
  padding: 11px 14px;
  border-radius: 10px;
  background: #EEF8F3;
  color: #207042;
  font-size: 13px;
  text-align: center;
}

.site-footer {
  background: var(--primary-darker);
  color: #C8DBEC;
  padding: 64px 0 28px;
}

.site-footer .row {
  padding: 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.7fr 0.85fr 0.85fr 1.1fr;
  gap: 44px;
}

.footer-brand .logo-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.footer-brand .logo-mark {
  width: 40px;
  height: 40px;
  font-size: 17px;
  border-radius: 13px;
  background: linear-gradient(145deg, #2B7FFF, #104E7A);
}

.footer-brand .logo-text {
  color: #fff;
  font-size: 21px;
  font-weight: 800;
}

.footer-brand p {
  margin-top: 18px;
  font-size: 14px;
  line-height: 1.9;
  color: #B6CDE2;
  max-width: 340px;
}

.footer-security {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-top: 22px;
  padding: 13px 15px;
  border-radius: 14px;
  background: rgba(227, 242, 255, 0.07);
  border: 1px solid rgba(227, 242, 255, 0.13);
  font-size: 12px;
  line-height: 1.7;
  color: #9FBBD1;
  max-width: 380px;
}

.footer-security i {
  margin-top: 3px;
  color: #6FA7D8;
}

.footer-title {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
}

.footer-links li+li {
  margin-top: 9px;
}

.footer-links a {
  color: #ADC6DA;
  font-size: 14px;
}

.footer-links a:hover {
  color: #fff;
  padding-left: 3px;
}

.footer-contact-line {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 13px;
}

.footer-contact-line>i {
  width: 34px;
  height: 34px;
  flex: 0 0 34px;
  border-radius: 11px;
  display: inline-grid;
  place-items: center;
  background: rgba(227, 242, 255, 0.09);
  color: #8EB9E4;
  font-size: 14px;
}

.line-label {
  color: #8EB3D3;
  font-size: 12px;
}

.line-value {
  color: #E5F1FA;
  font-size: 14px;
  margin-top: 2px;
}

.footer-btm {
  margin-top: 44px;
  padding-top: 22px;
  border-top: 1px solid rgba(220, 240, 255, 0.12);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 12px;
  color: #84A6C1;
}

@media (max-width: 1100px) {
  .header-search {
    width: 170px;
  }
}

@media (max-width: 1024px) {
  .header-inner {
    padding: 13px 0;
    position: relative;
  }

  .logo-link {
    order: 1;
  }

  .main-nav {
    order: 4;
    flex: 0 0 100%;
    display: none;
    margin-top: 2px;
    background: #fff;
    border-top: 1px solid var(--border);
  }

  .main-nav.open {
    display: block;
  }

  .nav-links {
    display: block;
    padding: 12px 0 6px;
  }

  .nav-link {
    display: block;
    padding: 11px 14px;
    border-radius: 14px;
    font-size: 15px;
  }

  .header-actions {
    order: 3;
    margin-left: auto;
  }

  .header-search {
    display: none;
  }

  .hamburger {
    display: inline-flex;
    order: 4;
    margin-left: auto;
  }

  .step-rail {
    grid-template-columns: repeat(2, 1fr);
    gap: 34px 20px;
  }

  .step-rail::before {
    display: none;
  }

  .access-banner {
    grid-template-columns: 1fr;
  }

  .access-media {
    min-height: 220px;
  }

  .related-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 34px;
  }
}

@media (max-width: 767px) {
  .section {
    padding: 68px 0;
  }

  .container,
  .row,
  .site-footer .row {
    padding-left: 20px;
    padding-right: 20px;
  }

  .logo-mark {
    width: 42px;
    height: 42px;
    border-radius: 13px;
  }

  .logo-text {
    font-size: 19px;
  }

  .nav-link {
    font-size: 14px;
  }

  .page-lead {
    padding: 42px 0 38px;
  }

  .page-heading h1 {
    font-size: 30px;
  }

  .step-rail {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .step-point {
    display: grid;
    grid-template-columns: 58px 1fr;
    column-gap: 18px;
    text-align: left;
    padding: 0;
  }

  .step-circle {
    grid-row: span 2;
    grid-column: 1;
    margin: 0;
  }

  .step-title {
    grid-column: 2;
    margin-top: 6px;
  }

  .step-desc {
    grid-column: 2;
    margin: 6px 0 0;
  }

  .prepare-grid {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .related-grid {
    grid-template-columns: 1fr;
  }

  .access-copy {
    padding: 30px 24px 34px;
  }

  .access-bullet {
    padding: 13px 14px;
  }

  .cta-flex {
    padding: 24px;
  }

  .cta-flex .btn {
    width: 100%;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .footer-btm {
    margin-top: 28px;
    flex-direction: column;
    align-items: flex-start;
    line-height: 1.7;
  }
}

@media (max-width: 520px) {
  .header-inner {
    min-height: 68px;
  }

  .header-actions .header-cta {
    height: 40px;
    padding: 0 15px;
    font-size: 13px;
  }

  .page-lead-desc {
    font-size: 15px;
  }

  .lead-actions .btn {
    width: 100%;
  }

  .section-head h2 {
    font-size: 25px;
  }

  .faq-answer {
    padding-left: 42px;
  }

  .faq-card summary {
    padding: 16px 18px;
  }

  .faq-qm {
    width: 28px;
    height: 28px;
    flex-basis: 28px;
  }

  .reveal {
    padding: 26px 20px 24px;
    max-height: 90vh;
    overflow-y: auto;
  }

  .modal-head h2 {
    font-size: 19px;
  }

  .container,
  .row {
    padding-left: 16px;
    padding-right: 16px;
  }
}

/* roulang page: category2 */
:root {
            --primary: #1e5ae8;
            --primary-deep: #143f9b;
            --primary-dark: #102c68;
            --primary-tint: #eaf1fd;
            --accent: #ff6b2c;
            --accent-hover: #ef5612;
            --accent-tint: #fff0e8;
            --bg: #f5f8fc;
            --white: #ffffff;
            --line: #dfe8f3;
            --line-deep: #c9d7ea;
            --text: #1b2637;
            --text-soft: #51627a;
            --text-faint: #8b99ad;
            --success-line: #d8edf0;
            --success-soft: #eef9fa;
            --r-lg: 20px;
            --r-md: 14px;
            --r-sm: 10px;
            --shadow-xs: 0 2px 8px rgba(24, 48, 96, .05);
            --shadow-sm: 0 8px 24px rgba(24, 48, 96, .08);
            --shadow-md: 0 15px 40px rgba(24, 48, 96, .11);
            --shadow-lg: 0 22px 56px rgba(24, 48, 96, .16);
            --section-space: clamp(48px, 8vw, 96px);
            --container: 1280px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 16px;
            margin: 0;
            -webkit-font-smoothing: antialiased;
        }

        img {
            max-width: 100%;
            display: block;
            border: 0;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s ease, background-color .2s ease, border-color .2s ease, transform .2s ease, box-shadow .2s ease;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            color: inherit;
        }

        button {
            border: 0;
            background: none;
            cursor: pointer;
        }

        :focus-visible {
            outline: 3px solid rgba(30, 90, 232, .45);
            outline-offset: 3px;
            border-radius: 6px;
        }

        .row {
            max-width: var(--container);
            width: 100%;
        }

        .column,
        .columns {
            float: none;
        }

        .section {
            padding: var(--section-space) 0;
        }

        .section-head {
            margin-bottom: 28px;
        }

        .section-head .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary-tint);
            color: var(--primary);
            border-radius: 999px;
            padding: 7px 14px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .02em;
        }

        .section-head h2 {
            font-size: clamp(26px, 3.4vw, 36px);
            font-weight: 800;
            line-height: 1.3;
            margin: 14px 0 8px;
            color: var(--text);
            letter-spacing: 0;
        }

        .section-head .desc {
            color: var(--text-soft);
            font-size: 16px;
            max-width: 720px;
            margin: 0;
        }

        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 clamp(16px, 4vw, 32px);
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 90;
            background: rgba(255, 255, 255, .96);
            -webkit-backdrop-filter: blur(12px);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--line);
        }

        .header-inner {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 clamp(16px, 4vw, 32px);
            min-height: 76px;
            display: flex;
            align-items: center;
            gap: 18px;
        }

        .logo-link {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-mark {
            width: 40px;
            height: 40px;
            border-radius: 13px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-deep) 100%);
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            box-shadow: 0 8px 18px rgba(30, 90, 232, .24);
        }

        .logo-text {
            font-size: 21px;
            font-weight: 800;
            color: var(--text);
            white-space: nowrap;
            letter-spacing: -0.01em;
        }

        .main-nav {
            display: flex;
            flex: 1;
            justify-content: center;
        }

        .nav-links {
            display: flex;
            align-items: center;
            padding: 0;
            margin: 0;
            list-style: none;
            gap: 6px;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 42px;
            border-radius: 999px;
            padding: 0 15px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-soft);
            white-space: nowrap;
            transition: background .2s, color .2s;
        }

        .nav-link:hover {
            color: var(--primary);
            background: var(--primary-tint);
        }

        .nav-link.active {
            color: var(--primary);
            background: var(--primary-tint);
            box-shadow: inset 0 -2px 0 var(--primary);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .header-search {
            position: relative;
            width: 220px;
        }

        .header-search input {
            width: 100%;
            height: 42px;
            border: 1px solid var(--line);
            background: #f3f6fa;
            border-radius: 999px;
            padding: 0 44px 0 16px;
            font-size: 14px;
            color: var(--text);
            outline: none;
            transition: border-color .2s, background .2s, box-shadow .2s;
        }

        .header-search input:focus {
            background: #fff;
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(30, 90, 232, .12);
        }

        .header-search button {
            position: absolute;
            right: 0;
            top: 0;
            width: 44px;
            height: 42px;
            color: var(--text-faint);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 0 999px 999px 0;
            transition: color .2s;
        }

        .header-search button:hover {
            color: var(--primary);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 44px;
            padding: 0 22px;
            border-radius: 12px;
            font-weight: 700;
            font-size: 15px;
            border: 1px solid transparent;
            white-space: nowrap;
            transition: all .2s ease, transform .15s ease;
        }

        .btn svg,
        .btn i {
            font-size: 15px;
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 10px 22px rgba(255, 107, 44, .24);
        }

        .btn-accent:hover {
            background: var(--accent-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 14px 28px rgba(255, 107, 44, .3);
        }

        .btn-line {
            border-color: var(--primary);
            color: var(--primary);
            background: #fff;
        }

        .btn-line:hover {
            background: var(--primary-tint);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }

        .btn-white {
            background: #fff;
            color: var(--primary);
            box-shadow: var(--shadow-sm);
        }

        .btn-white:hover {
            transform: translateY(-2px);
            color: var(--primary-deep);
            box-shadow: var(--shadow-md);
        }

        .header-cta {
            min-height: 42px;
            padding: 0 18px;
            font-size: 14px;
            border-radius: 999px;
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            border: 1px solid var(--line);
            background: #fff;
            color: var(--text);
            align-items: center;
            justify-content: center;
            font-size: 18px;
        }

        .page-hero {
            position: relative;
            background: linear-gradient(115deg, rgba(232, 241, 255, .94) 0%, rgba(248, 250, 255, .92) 46%, rgba(238, 245, 255, .75) 100%);
            background-size: cover;
            background-position: center;
            padding: clamp(40px, 6vw, 78px) 0 42px;
            border-bottom: 1px solid var(--line);
        }

        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            opacity: .18;
            pointer-events: none;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
        }

        .page-hero__inner {
            position: relative;
            max-width: 960px;
            margin: 0 auto;
            text-align: center;
        }

        .breadcrumbs {
            display: inline-flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-faint);
            background: rgba(255, 255, 255, .65);
            border: 1px solid var(--line);
            border-radius: 999px;
            padding: 5px 14px;
            margin-bottom: 22px;
        }

        .breadcrumbs a {
            color: var(--text-soft);
        }

        .breadcrumbs a:hover {
            color: var(--primary);
        }

        .breadcrumbs .sep {
            opacity: .55;
        }

        .page-hero h1 {
            font-size: clamp(30px, 5vw, 48px);
            font-weight: 900;
            line-height: 1.25;
            margin: 0 0 12px;
            color: var(--text);
            letter-spacing: -0.02em;
        }

        .page-hero h1 span {
            color: var(--primary);
        }

        .page-hero__note {
            font-size: 16px;
            color: var(--text-soft);
            line-height: 1.9;
            max-width: 760px;
            margin: 0 auto;
        }

        .portal-section {
            padding: var(--section-space) 0;
        }

        .portal-article {
            background: var(--white);
            border: 1px solid var(--line);
            border-radius: var(--r-lg);
            box-shadow: var(--shadow-xs);
            overflow: hidden;
        }

        .article-image {
            display: block;
            width: 100%;
            height: clamp(220px, 34vw, 380px);
            object-fit: cover;
        }

        .article-body {
            padding: clamp(20px, 3.4vw, 42px);
        }

        .article-body .eyebrow-title {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--primary);
            font-weight: 700;
            font-size: 13px;
            letter-spacing: .06em;
        }

        .article-body h2 {
            font-size: clamp(23px, 3vw, 32px);
            font-weight: 800;
            line-height: 1.4;
            margin: 12px 0 18px;
        }

        .article-body p {
            font-size: 16px;
            line-height: 1.95;
            color: var(--text-soft);
            margin: 0 0 22px;
        }

        .article-sub {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            margin-top: 34px;
            padding-top: 28px;
            border-top: 1px dashed var(--line-deep);
        }

        .article-sub .sub-icon {
            width: 44px;
            height: 44px;
            flex-shrink: 0;
            border-radius: 14px;
            background: var(--primary-tint);
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
        }

        .article-sub h3 {
            font-size: 19px;
            font-weight: 700;
            margin: 0 0 8px;
            line-height: 1.5;
        }

        .article-sub p {
            margin: 0;
        }

        .todo-list {
            list-style: none;
            margin: 10px 0 4px;
            padding: 0;
        }

        .todo-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 10px 0;
            color: var(--text-soft);
        }

        .todo-list li i {
            color: var(--primary);
            margin-top: 5px;
            font-size: 13px;
        }

        .tip-note {
            margin-top: 26px;
            background: var(--success-soft);
            border: 1px solid var(--success-line);
            border-left: 4px solid #2bb6c9;
            border-radius: var(--r-md);
            padding: 18px 20px;
            color: var(--text-soft);
            font-size: 14px;
            line-height: 1.9;
        }

        .tip-note strong {
            color: var(--text);
        }

        .side-stack {
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: sticky;
            top: 96px;
        }

        .rail-card {
            border-radius: var(--r-lg);
            background: #fff;
            border: 1px solid var(--line);
            padding: 24px;
        }

        .rail-nav-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .rail-nav-list li+li {
            border-top: 1px solid var(--line);
        }

        .rail-nav-link {
            padding: 12px 2px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
            color: var(--text-soft);
            font-size: 14px;
        }

        .rail-nav-link strong {
            color: var(--text);
            font-weight: 700;
        }

        .rail-nav-link i {
            color: var(--primary);
            font-size: 13px;
            transition: transform .2s;
        }

        .rail-nav-link:hover strong {
            color: var(--primary);
        }

        .rail-nav-link:hover i {
            transform: translateX(4px);
        }

        .rail-title {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 17px;
            font-weight: 800;
            color: var(--text);
            margin: 0 0 10px;
        }

        .rail-title i {
            color: var(--primary);
            font-size: 15px;
        }

        .rail-card--contact {
            background: linear-gradient(150deg, #f4f8ff, #edf4ff);
            border-color: #cddef8;
        }

        .rail-card--contact p {
            font-size: 14px;
            color: var(--text-soft);
            margin: 6px 0 18px;
        }

        .rail-card .btn {
            width: 100%;
        }

        .rail-card--security {
            background: var(--accent-tint);
            border-color: #ffd8c4;
        }

        .security-icon {
            width: 42px;
            height: 42px;
            border-radius: 14px;
            background: var(--accent);
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            margin-bottom: 12px;
        }

        .rail-card--security h4 {
            font-weight: 800;
            font-size: 17px;
            margin: 0 0 8px;
        }

        .rail-card--security p {
            font-size: 13px;
            line-height: 1.85;
            color: var(--text-soft);
            margin: 0;
        }

        .portal-ext {
            padding: 0 0 var(--section-space);
        }

        .ext-cards {
            display: flex;
            flex-direction: column;
            gap: 18px;
            margin-top: 20px;
        }

        .ext-card {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: var(--r-lg);
            box-shadow: var(--shadow-xs);
            padding: 22px 24px;
            display: flex;
            align-items: flex-start;
            gap: 18px;
            transition: transform .2s, box-shadow .2s, border-color .2s;
        }

        .ext-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
            border-color: #c3d8f5;
        }

        .ext-icon {
            width: 54px;
            height: 54px;
            flex-shrink: 0;
            border-radius: 16px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary);
            background: var(--primary-tint);
        }

        .ext-icon.orange {
            color: var(--accent);
            background: var(--accent-tint);
        }

        .ext-icon.teal {
            color: #0d9cb0;
            background: #e6f6f8;
        }

        .ext-info h3 {
            font-size: 18px;
            font-weight: 800;
            margin: 2px 0 8px;
            line-height: 1.4;
        }

        .ext-info p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-soft);
            margin: 0 0 10px;
        }

        .ext-more {
            color: var(--primary);
            font-size: 14px;
            font-weight: 700;
            display: inline-flex;
            gap: 6px;
        }

        .ext-more i {
            font-size: 12px;
            margin-top: 3px;
        }

        .ext-more:hover {
            text-decoration: underline;
        }

        .faq-section {
            background: var(--white);
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }

        .faq-panel {
            max-width: 920px;
            margin: 0 auto;
        }

        .faq-list {
            margin-top: 16px;
        }

        .faq-item {
            border-bottom: 1px solid var(--line);
            background: #fff;
        }

        .faq-item:first-child {
            border-top: 1px solid var(--line);
        }

        .faq-q {
            width: 100%;
            min-height: 56px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
            text-align: left;
            padding: 17px 4px 17px 0;
            color: var(--text);
            font-size: 17px;
            font-weight: 700;
            border-radius: 0;
            transition: color .2s;
        }

        .faq-q:hover {
            color: var(--primary);
        }

        .faq-toggle {
            width: 30px;
            height: 30px;
            flex-shrink: 0;
            border-radius: 50%;
            border: 1px solid var(--line-deep);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            color: var(--text-faint);
            transition: transform .25s, background .25s, border-color .25s, color .25s;
        }

        .faq-item.open .faq-toggle {
            transform: rotate(45deg);
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }

        .faq-a {
            max-height: 0;
            overflow: hidden;
            opacity: 0;
            transform: translateY(-4px);
            transition: max-height .3s ease, opacity .25s ease, transform .25s ease, margin .2s;
        }

        .faq-item.open .faq-a {
            max-height: 500px;
            opacity: 1;
            transform: translateY(0);
        }

        .faq-a-inner {
            padding: 0 32px 22px 0;
            color: var(--text-soft);
            font-size: 15px;
            line-height: 1.9;
        }

        .faq-a-inner p:last-child {
            margin: 0;
        }

        .cta-banner {
            padding: var(--section-space) 0;
        }

        .cta-band {
            background: linear-gradient(120deg, #edf3fe, #e5eefc);
            border: 1px solid #d4e2fa;
            border-radius: var(--r-lg);
            padding: clamp(28px, 5vw, 56px);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
        }

        .cta-band h2 {
            font-size: clamp(24px, 3vw, 34px);
            font-weight: 800;
            margin: 0 0 10px;
            color: var(--text);
        }

        .cta-band p {
            font-size: 15px;
            color: var(--text-soft);
            margin: 0;
        }

        .site-footer {
            background: #102c58;
            color: #c2d2ea;
            padding: 62px 0 30px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 38px;
            margin-bottom: 40px;
        }

        .footer-brand .logo-link {
            margin-bottom: 16px;
        }

        .site-footer .logo-text {
            color: #fff;
            font-size: 20px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.9;
            margin: 14px 0 16px;
            color: #a8bedb;
        }

        .footer-security {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            background: rgba(255, 255, 255, .05);
            border: 1px solid rgba(255, 255, 255, .1);
            border-radius: 12px;
            padding: 13px 14px;
            font-size: 12px;
            line-height: 1.7;
            color: #9cb3d2;
        }

        .footer-security i {
            margin-top: 3px;
            color: #73a9ff;
        }

        .footer-title {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin: 0 0 14px;
            letter-spacing: .02em;
        }

        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-links li+li {
            margin-top: 10px;
        }

        .footer-links a {
            font-size: 14px;
            color: #a8bedb;
            transition: color .2s;
        }

        .footer-links a:hover {
            color: #fff;
        }

        .footer-contact-line {
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }

        .footer-contact-line i {
            width: 28px;
            height: 28px;
            border-radius: 9px;
            background: rgba(255, 255, 255, .08);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            color: #fff;
            margin-top: 2px;
        }

        .line-label {
            font-size: 13px;
            color: #8da9c9;
        }

        .line-value {
            font-size: 14px;
            color: #dce7f5;
            margin-top: 2px;
        }

        .footer-btm {
            border-top: 1px solid rgba(255, 255, 255, .09);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
            color: #8aa4c4;
        }

        .contact-reveal {
            border: 0;
            background: transparent;
            border-radius: var(--r-lg);
            width: 600px;
            max-width: calc(100vw - 32px);
            padding: 0;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .contact-reveal .reveal-card {
            background: #fff;
            border-radius: var(--r-lg);
            overflow: hidden;
        }

        .reveal-head {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 14px;
            background: var(--primary-tint);
            padding: 24px 28px 20px;
            border-bottom: 1px solid var(--line);
        }

        .reveal-head h3 {
            margin: 0;
            font-size: 22px;
            font-weight: 800;
        }

        .reveal-head p {
            margin: 4px 0 0;
            font-size: 13px;
            color: var(--text-soft);
        }

        .close-button {
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: #fff;
            border: 1px solid var(--line);
            color: var(--text);
            font-size: 22px;
            line-height: 1;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

        .close-button:hover {
            background: var(--primary-tint);
            color: var(--primary);
        }

        .reveal-body {
            padding: 26px 28px 28px;
        }

        .form-item {
            margin-bottom: 18px;
        }

        .form-item label {
            display: block;
            font-size: 14px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 7px;
        }

        .form-item input,
        .form-item select,
        .form-item textarea {
            width: 100%;
            min-height: 46px;
            background: #f8fafd;
            border: 1px solid var(--line);
            border-radius: 12px;
            padding: 11px 14px;
            font-size: 15px;
            color: var(--text);
            outline: none;
            transition: background .2s, border-color .2s, box-shadow .2s;
        }

        .form-item textarea {
            min-height: 110px;
            resize: vertical;
        }

        .form-item input:focus,
        .form-item select:focus,
        .form-item textarea:focus {
            background: #fff;
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(30, 90, 232, .11);
        }

        .form-item select {
            appearance: auto;
        }

        .btn-block {
            width: 100%;
        }

        .privacy-tip {
            margin-top: 12px;
            font-size: 12px;
            color: var(--text-faint);
            text-align: center;
        }

        .header-search input::placeholder {
            color: var(--text-faint);
        }

        @media (max-width: 1150px) {
            .header-search {
                width: 180px;
            }
            .main-nav .nav-link {
                padding: 0 11px;
                font-size: 14px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr 1fr;
            }
        }

        @media (max-width: 1023.98px) {
            .main-nav {
                position: static;
            }
            .nav-toggle {
                display: inline-flex;
            }
            .nav-links {
                position: absolute;
                left: 0;
                right: 0;
                top: 76px;
                margin: 0;
                background: #fff;
                border-bottom: 1px solid var(--line);
                box-shadow: 0 12px 24px rgba(24, 48, 96, .08);
                padding: 14px 20px 20px;
                display: flex;
                flex-direction: column;
                gap: 6px;
                max-height: 0;
                overflow: hidden;
                opacity: 0;
                transition: max-height .3s ease, opacity .2s;
            }
            .nav-links.open {
                max-height: 420px;
                opacity: 1;
            }
            .nav-link {
                width: 100%;
                justify-content: flex-start;
                border-radius: 10px;
                background: transparent;
            }
            .nav-links li {
                width: 100%;
            }
            .header-actions {
                margin-left: auto;
            }
            .ext-card {
                flex-direction: row;
            }
            .cta-band {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 900px) {
            .portal-article,
            .rail-card {
                margin-bottom: 24px;
            }
            .side-stack {
                position: static;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-btm {
                flex-direction: column;
            }
        }

        @media (max-width: 767.98px) {
            .section {
                padding: 48px 0;
            }
            .header-search {
                display: none;
            }
            .portal-section {
                padding: 42px 0 12px;
            }
            .portal-ext {
                padding-bottom: 42px;
            }
            .ext-card {
                padding: 18px;
            }
            .faq-section {
                padding: 48px 0;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .contact-reveal .reveal-body {
                padding: 20px;
            }
            .reveal-head {
                padding: 18px;
            }
        }

        @media (max-width: 575px) {
            .header-inner {
                min-height: 68px;
                gap: 10px;
            }
            .logo-mark {
                width: 36px;
                height: 36px;
                border-radius: 12px;
            }
            .logo-text {
                font-size: 18px;
            }
            .nav-toggle {
                width: 42px;
                height: 42px;
            }
            .header-cta {
                font-size: 0;
                gap: 0;
                padding: 0 13px;
                min-height: 42px;
                border-radius: 12px;
            }
            .header-cta i {
                font-size: 16px;
            }
            .page-hero h1 {
                font-size: 28px;
                line-height: 1.35;
            }
            .page-hero__note {
                font-size: 14px;
            }
            .breadcrumbs {
                font-size: 12px;
            }
            .article-body {
                padding: 20px 18px;
            }
            .rail-card {
                padding: 20px;
            }
            .faq-a-inner {
                padding-right: 0;
            }
            .cta-band {
                padding: 26px 20px;
            }
            .cta-band h2 {
                font-size: 24px;
            }
            .button-group .btn {
                width: 100%;
            }
            .footer-btm {
                font-size: 12px;
            }
        }

/* roulang page: category3 */
:root{
    --primary:#2563eb;
    --primary-deep:#173c7c;
    --primary-ink:#102b57;
    --primary-tint:#e8f1fe;
    --accent:#ef6b37;
    --accent-deep:#d85320;
    --bg:#f5f8fc;
    --surface:#ffffff;
    --text:#16263c;
    --muted:#5f718b;
    --border:#d8e3f0;
    --border-light:#ebf1f8;
    --shadow-sm:0 8px 18px rgba(49,88,144,.07);
    --shadow-md:0 18px 38px rgba(49,88,144,.13);
    --radius-xl:22px;
    --radius-md:14px;
    --radius-sm:10px;
    --footer-bg:#0d2447;
    --footer-text:#e8edf6;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
    margin:0;
    font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC","Source Han Sans SC",system-ui,-apple-system,sans-serif;
    background:var(--bg);
    color:var(--text);
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
ul,li{list-style:none;margin:0;padding:0}
input,select,textarea,button{font-family:inherit;font-size:inherit}
.container{max-width:1240px;margin:0 auto;padding:0 28px;width:100%}
.visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px}

.btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:44px;padding:0 22px;border-radius:var(--radius-sm);
    background:transparent;border:1px solid transparent;cursor:pointer;
    font-size:15px;font-weight:600;line-height:1.4;
    transition:background .2s,border-color .2s,color .2s,transform .2s,box-shadow .2s;
}
.btn:disabled{opacity:.55;cursor:not-allowed}
.btn-accent{
    background:var(--accent);border-color:var(--accent);color:#fff;
    box-shadow:0 10px 22px rgba(239,107,55,.22);
}
.btn-accent:hover{background:var(--accent-deep);border-color:var(--accent-deep);transform:translateY(-2px)}
.btn-accent:active{transform:translateY(0)}
.btn-outline-light{
    border-color:#fff;color:#fff;background:rgba(255,255,255,.1);
}
.btn-outline-light:hover{background:#fff;color:var(--primary-deep)}

.site-header{
    position:sticky;top:0;z-index:80;
    background:rgba(255,255,255,.96);
    border-bottom:1px solid var(--border-light);
    backdrop-filter:blur(12px);
    box-shadow:0 4px 14px rgba(20,50,90,.04);
}
.header-row{
    min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px;
}
.logo-link{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.logo-badge{
    width:42px;height:42px;display:inline-flex;align-items:center;justify-content:center;
    background:linear-gradient(140deg,var(--primary),var(--primary-deep));
    color:#fff;border-radius:12px;font-size:19px;
    box-shadow:0 8px 16px rgba(37,99,235,.22);
}
.logo-name{font-size:21px;font-weight:900;letter-spacing:-.2px;color:var(--primary-ink);white-space:nowrap}
.logo-name span{color:var(--primary)}
.main-nav{display:flex;align-items:center}
.nav-links{display:flex;align-items:center;gap:4px;margin:0;padding:0;list-style:none}
.nav-link{
    display:flex;align-items:center;min-height:44px;padding:0 15px;
    font-size:15px;font-weight:600;color:var(--muted);border-radius:8px;
    position:relative;transition:color .2s,background .2s;
}
.nav-link:hover{color:var(--primary);background:var(--primary-tint)}
.nav-link::after{
    content:"";position:absolute;left:15px;right:15px;bottom:5px;height:3px;
    background:var(--primary);border-radius:10px;opacity:0;transform:scaleX(.5);
    transition:opacity .2s,transform .2s;
}
.nav-link.active{color:var(--primary)}
.nav-link.active::after{opacity:1;transform:scaleX(1)}
.header-tools{display:flex;align-items:center;gap:12px;flex-shrink:0}
.header-search{
    display:flex;align-items:center;background:#f0f5fb;border:1px solid #e6edf7;
    border-radius:999px;overflow:hidden;transition:border-color .2s,box-shadow .2s;
}
.header-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.12);background:#fff}
.search-input{
    width:196px;height:40px;background:transparent;border:0;outline:0;
    padding:0 6px 0 16px;color:var(--text);font-size:14px;
}
.search-input::placeholder{color:#8ca0b8}
.search-submit{
    width:44px;height:40px;border:0;background:transparent;color:var(--primary);
    cursor:pointer;display:inline-flex;align-items:center;justify-content:center;
}
.header-cta{
    display:inline-flex;align-items:center;gap:8px;min-height:44px;
    padding:0 20px;border-radius:999px;background:var(--accent);border:1px solid var(--accent);
    color:#fff;font-weight:700;font-size:14px;cursor:pointer;white-space:nowrap;
    box-shadow:0 8px 18px rgba(239,107,55,.2);
    transition:background .2s,transform .2s,box-shadow .2s;
}
.header-cta:hover{background:var(--accent-deep);transform:translateY(-2px);box-shadow:0 12px 22px rgba(239,107,55,.25)}
.header-cta:active{transform:translateY(0)}
.nav-toggle{
    display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--border);
    background:#fff;color:var(--primary-ink);font-size:19px;align-items:center;justify-content:center;
    cursor:pointer;transition:background .2s,border-color .2s;
}
.nav-toggle:hover{background:var(--primary-tint);border-color:var(--primary)}

.page-title-hero{
    position:relative;
    background:
        linear-gradient(90deg,rgba(242,247,253,.96) 0%,rgba(244,249,254,.93) 60%,rgba(239,246,254,.88) 100%),
        url("/assets/images/backpic/back-2.webp") center / cover no-repeat;
    border-bottom:1px solid var(--border-light);
    padding:74px 0 72px;
}
.page-title-hero::before{
    content:"";position:absolute;inset:auto 0 0 auto;width:280px;height:280px;pointer-events:none;
    background:radial-gradient(circle,rgba(37,99,235,.08),transparent 70%);
}
.ph-wrap{max-width:980px;position:relative;z-index:2}
.breadcrumb{
    display:flex;align-items:center;gap:7px;margin-bottom:18px;
    font-size:13px;color:var(--muted);font-weight:500;
}
.breadcrumb a{color:var(--muted);transition:color .2s}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb-sep{color:#afc1d8}
.page-eyebrow{
    display:inline-flex;align-items:center;gap:7px;margin:0 0 12px;
    font-size:13px;font-weight:700;letter-spacing:1px;color:var(--primary);
    text-transform:uppercase;
}
.page-eyebrow i{color:var(--accent)}
.page-title-hero h1{
    font-size:clamp(34px,5vw,54px);line-height:1.2;margin:0 0 22px;
    font-weight:900;color:var(--primary-ink);letter-spacing:-.6px;
}
.h1-highlight{color:var(--primary);position:relative;white-space:nowrap}
.h1-highlight::after{
    content:"";display:block;height:6px;width:82%;border-radius:8px;
    background:linear-gradient(90deg,var(--accent),transparent);margin-top:3px;opacity:.5;
}
.page-subtitle{
    font-size:17px;line-height:1.9;color:#526682;max-width:760px;margin:0;
}
.page-subtitle strong{color:var(--primary-deep);font-weight:700}

.topics-section{
    background:var(--bg);
    padding:100px 0 92px;
}
.section-head{
    max-width:820px;margin-bottom:56px;
}
.section-overline{
    display:inline-block;font-size:13px;font-weight:800;letter-spacing:1px;
    color:var(--primary);background:var(--primary-tint);border:1px solid rgba(37,99,235,.12);
    padding:5px 14px;border-radius:999px;margin-bottom:14px;
}
.section-head h2{
    font-size:clamp(28px,3.6vw,36px);line-height:1.3;color:var(--primary-ink);
    font-weight:900;margin:0 0 14px;letter-spacing:-.3px;
}
.section-desc{font-size:16px;color:var(--muted);margin:0;line-height:1.9}
.topic-list{margin:0}
.topic-row{
    display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.9fr);
    gap:42px;align-items:center;padding:40px 0 52px;
    border-bottom:1px solid var(--border-light);
}
.topic-row:first-of-type{padding-top:12px}
.topic-row:last-of-type{border-bottom:0;padding-bottom:0}
.topic-row--flip .topic-media{order:2}
.topic-media{
    position:relative;margin:0;border-radius:20px;overflow:hidden;
    box-shadow:var(--shadow-md);background:#dfe9f4;
}
.topic-media img{width:100%;height:350px;object-fit:cover;transition:transform .6s ease}
.topic-row:hover .topic-media img{transform:scale(1.025)}
.topic-media figcaption{
    position:absolute;left:16px;bottom:14px;z-index:3;color:#fff;
    background:rgba(15,38,79,.68);border:1px solid rgba(255,255,255,.3);
    backdrop-filter:blur(8px);
    font-size:13px;font-weight:600;padding:6px 15px;border-radius:999px;
}
.topic-media::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(10,30,70,.02) 35%,rgba(10,30,70,.25) 100%);
    pointer-events:none;
}
.topic-body{position:relative}
.topic-no{
    position:absolute;top:-14px;right:-4px;font-size:90px;font-weight:900;
    line-height:1;letter-spacing:-4px;color:rgba(37,99,235,.09);z-index:0;
    pointer-events:none;
}
.topic-content{position:relative;z-index:2}
.topic-tag{
    display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:700;
    background:var(--primary-tint);color:var(--primary);padding:6px 14px;border-radius:999px;
    margin-bottom:14px;
}
.topic-tag i{font-size:11px}
.topic-body h3{
    font-size:clamp(21px,2.5vw,28px);line-height:1.35;font-weight:800;
    color:var(--primary-ink);margin:0 0 14px;letter-spacing:-.2px;
}
.topic-body p{font-size:16px;color:#4b5e7a;margin:0 0 18px;line-height:1.9}
.topic-points{display:grid;gap:9px;margin:0 0 22px;padding:0}
.topic-points li{
    display:flex;gap:10px;align-items:flex-start;
    color:#405675;font-size:15px;
}
.topic-points li::before{
    content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;
    color:var(--accent);background:#fff1e6;border-radius:50%;
    width:19px;height:19px;display:inline-flex;align-items:center;justify-content:center;
    margin-top:4px;flex-shrink:0;
}
.link-more{
    display:inline-flex;align-items:center;gap:9px;font-weight:700;font-size:15px;
    color:var(--primary);padding:5px 0;border-bottom:2px solid transparent;
    transition:border-color .2s,color .2s;
}
.link-more i{transition:transform .2s}
.link-more:hover{color:var(--primary-deep);border-color:var(--primary)}
.link-more:hover i{transform:translateX(4px)}

.path-section{
    background:var(--surface);border-top:1px solid var(--border-light);
    padding:68px 0;
}
.path-banner{
    display:flex;align-items:center;justify-content:space-between;gap:32px;
    flex-wrap:wrap;padding:28px 32px;border-radius:var(--radius-xl);
    background:var(--primary-tint);border:1px solid #d6e5f7;
}
.path-intro{display:flex;align-items:center;gap:18px;max-width:430px}
.path-icon{
    width:54px;height:54px;border-radius:15px;color:#fff;flex-shrink:0;
    background:var(--primary);display:inline-flex;align-items:center;justify-content:center;font-size:20px;
    box-shadow:0 8px 18px rgba(37,99,235,.22);
}
.path-intro h2{font-size:20px;font-weight:800;color:var(--primary-ink);margin:0 0 4px}
.path-intro p{margin:0;font-size:14px;color:var(--muted);line-height:1.6}
.path-chips{display:flex;align-items:center;flex-wrap:wrap;gap:12px}
.path-pill{
    display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:0 18px;
    border-radius:999px;background:#fff;border:1px solid #d8e3f1;color:#324a6b;
    font-size:14px;font-weight:700;transition:all .2s;box-shadow:0 2px 6px rgba(49,88,144,.04);
}
.path-pill i{color:var(--primary);font-size:13px}
.path-pill:hover{color:var(--primary);border-color:var(--primary);transform:translateY(-2px);box-shadow:var(--shadow-sm)}

.faq-section{
    background:var(--bg);
    padding:92px 0 76px;
}
.faq-center{max-width:920px;margin:0 auto}
.faq-list{margin-top:8px}
.faq-item{
    background:#fff;border:1px solid var(--border);
    border-radius:0;margin:0;padding:0 28px;
    border-top:0;transition:border-color .25s,box-shadow .25s;
}
.faq-item:first-child{border-top:1px solid var(--border);border-radius:18px 18px 0 0}
.faq-item:last-child{border-radius:0 0 18px 18px}
.faq-item.open{border-color:var(--primary);box-shadow:0 4px 18px rgba(37,99,235,.05)}
.faq-toggle{
    background:transparent;border:0;padding:22px 0;width:100%;
    display:flex;align-items:center;justify-content:space-between;gap:18px;
    cursor:pointer;color:var(--text);
}
.faq-question{
    font-size:17px;font-weight:700;color:var(--primary-ink);text-align:left;
    transition:color .2s;
}
.faq-item.open .faq-question{color:var(--primary)}
.faq-state{
    width:32px;height:32px;flex-shrink:0;border-radius:50%;
    background:var(--primary-tint);color:var(--primary);
    display:inline-flex;align-items:center;justify-content:center;
    font-size:14px;transition:background .2s,color .2s,transform .3s;
}
.faq-state i{transition:transform .3s}
.faq-item.open .faq-state{background:var(--primary);color:#fff;transform:rotate(180deg)}
.faq-draw{
    max-height:0;overflow:hidden;
    transition:max-height .35s ease;
}
.faq-answer{padding:0 44px 24px 0;color:var(--muted);font-size:15px;line-height:1.95}
.faq-answer p{margin:0}
.faq-answer a{color:var(--primary);font-weight:600}

.cta-section{
    background:var(--bg);
    padding-bottom:100px;
}
.cta-strip{
    background:linear-gradient(115deg,var(--primary-deep) 0%,#1d4791 100%);
    border-radius:var(--radius-xl);
    padding:44px 48px;
    display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
    box-shadow:var(--shadow-md);position:relative;overflow:hidden;
}
.cta-strip::before{
    content:"";position:absolute;right:-60px;top:-70px;width:240px;height:240px;
    background:url("/assets/images/backpic/back-3.webp") center / cover no-repeat;
    opacity:.16;border-radius:50%;
}
.cta-text{max-width:620px;position:relative;z-index:2}
.cta-label{
    display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
    color:#ffe2cb;letter-spacing:.8px;margin-bottom:8px;
}
.cta-strip h2{font-size:clamp(22px,3vw,31px);font-weight:900;color:#fff;margin:0 0 12px;line-height:1.35}
.cta-strip p{color:#c7d8f1;font-size:15px;line-height:1.8;margin:0}
.cta-action{display:flex;align-items:center;gap:14px;flex-wrap:wrap;position:relative;z-index:2}
.cta-action .btn{border-radius:999px}

.site-footer{
    background:var(--footer-bg);color:#d7e3f6;
    padding:74px 0 28px;
    line-height:1.8;
}
.site-footer .row{max-width:1240px;margin:0 auto;padding:0 28px}
.footer-grid{
    display:grid;grid-template-columns:1.5fr .8fr .8fr 1fr;
    gap:40px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand .logo-link{color:#fff;margin-bottom:18px}
.footer-brand .logo-badge{background:#fff;color:var(--primary-deep)}
.footer-brand .logo-name{color:#fff}
.footer-brand p{font-size:14px;color:#a8bbd8;margin:0 0 18px;max-width:360px}
.footer-security{
    display:flex;gap:9px;align-items:flex-start;
    background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.08);
    border-radius:12px;padding:11px 13px;color:#b6c7e0;font-size:12px;line-height:1.7;max-width:420px;
}
.footer-security i{color:#ffd9bf;margin-top:4px}
.footer-title{
    color:#fff;font-size:16px;font-weight:800;margin:0 0 18px;
}
.footer-links{display:grid;gap:10px;margin:0;padding:0;list-style:none}
.footer-links a{
    color:#a8bbd8;font-size:14px;transition:color .2s,padding-left .2s;
}
.footer-links a:hover{color:#fff;padding-left:4px}
.footer-contact-line{display:flex;gap:11px;align-items:flex-start;font-size:14px}
.footer-contact-line > i{color:#ffd9bf;margin-top:5px;width:16px;text-align:center}
.line-label{color:#8fa7c4;font-size:13px}
.line-value{color:#e1ebf8;font-size:16px;font-weight:600}
.footer-btm{
    display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px;
    padding-top:26px;color:#829ab9;font-size:13px;
}

.reveal.contact-reveal{
    border-radius:20px;max-width:620px;padding:0;border:0;overflow:hidden;
    box-shadow:0 30px 70px rgba(20,40,80,.24);
}
.modal-head{
    background:var(--primary-tint);padding:24px 28px 20px;border-bottom:1px solid var(--border-light);
}
.modal-head h2{font-size:22px;font-weight:800;color:var(--primary-ink);margin:0 0 4px}
.modal-head p{margin:0;font-size:14px;color:var(--muted)}
.close-button{font-size:28px;line-height:1;width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;border-radius:10px}
.close-button:hover{background:#fff}
.modal-form{padding:26px 28px 28px}
.webform{display:grid;gap:18px}
.form-label{display:grid;gap:7px;font-size:14px;font-weight:700;color:#31456b}
.field-control{
    width:100%;height:46px;border-radius:10px;border:1px solid var(--border);
    background:#fff;color:var(--text);padding:0 14px;font-size:15px;
    transition:border-color .2s,box-shadow .2s;
}
textarea.field-control{height:110px;padding:12px 14px;resize:vertical;line-height:1.6}
.field-control:focus{outline:0;border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.12)}
select.field-control{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235f718b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;background-size:18px}
.btn-submit{width:100%;border-radius:12px;min-height:48px;font-weight:800;border:0;background:var(--accent);color:#fff;cursor:pointer;font-size:15px;transition:background .2s,transform .2s;box-shadow:0 10px 20px rgba(239,107,55,.22)}
.btn-submit:hover:not(:disabled){background:var(--accent-deep);transform:translateY(-1px)}
.btn-submit:disabled{opacity:.55;cursor:not-allowed}
.form-privacy{
    font-size:12px;color:#7a8ca6;text-align:center;margin-top:-6px;
}
.form-error{
    background:#fff3ec;border:1px solid #ffcdb4;color:#a44d24;
    padding:12px 14px;border-radius:10px;font-size:14px;display:flex;gap:8px;align-items:flex-start;
}
.form-success{
    background:#edf9f0;border:1px solid #bfe7c8;color:#317a41;
    padding:18px 18px;border-radius:12px;display:flex;gap:10px;align-items:flex-start;
}
.form-success i{margin-top:4px}

@media(max-width:1024px){
    .nav-toggle{display:inline-flex}
    .main-nav{
        display:none;position:absolute;left:0;right:0;top:100%;
        background:#fff;border-bottom:1px solid var(--border);padding:14px 24px 22px;
        box-shadow:0 16px 24px rgba(30,60,100,.08);z-index:90;
    }
    .main-nav.open{display:block}
    .nav-links{flex-direction:column;align-items:stretch;gap:4px}
    .nav-link{justify-content:flex-start;min-height:46px;border-radius:10px}
    .nav-link::after{left:18px;right:auto;width:20px;bottom:10px;opacity:0}
    .nav-link.active::after{opacity:1}
    .header-search{display:none}
    .topic-row{grid-template-columns:1fr;gap:26px}
    .topic-row--flip .topic-media{order:0}
    .topic-media img{height:300px}
}
@media(max-width:768px){
    .container,.site-footer .row{padding-left:20px;padding-right:20px}
    .header-row{min-height:68px}
    .logo-name{font-size:18px}
    .logo-badge{width:38px;height:38px;font-size:17px;border-radius:10px}
    .header-cta{padding:0 14px;font-size:13px}
    .page-title-hero{padding:54px 0 54px}
    .page-title-hero h1{font-size:35px}
    .topics-section{padding:72px 0 70px}
    .section-head{margin-bottom:38px}
    .topic-no{font-size:70px;top:-8px}
    .faq-item{padding:0 20px}
    .faq-toggle{padding:18px 0}
    .faq-answer{padding:0 20px 20px 0}
    .cta-strip{padding:34px 24px}
    .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media(max-width:520px){
    .container,.site-footer .row{padding-left:16px;padding-right:16px}
    .header-row{gap:10px}
    .logo-name span.block{display:block}
    .header-cta span{display:none}
    .header-cta{padding:0 12px}
    .page-title-hero h1{font-size:30px}
    .h1-highlight{white-space:normal}
    .page-subtitle{font-size:15px}
    .topic-media img{height:220px}
    .topic-media figcaption{left:10px;bottom:10px;font-size:12px}
    .topic-points li{font-size:14px}
    .path-banner{padding:22px;flex-direction:column;align-items:stretch}
    .path-chips{display:flex;flex-wrap:wrap}
    .path-pill{flex:1 1 auto}
    .topic-row{gap:20px;padding:30px 0 40px}
    .topic-no{font-size:56px;top:0}
    .faq-item{padding:0 16px}
    .faq-question{font-size:15px}
    .faq-state{width:28px;height:28px}
    .cta-strip{padding:26px 20px}
    .cta-action,.cta-action .btn{width:100%}
    .footer-grid{grid-template-columns:1fr}
    .footer-btm{display:block;padding-top:18px;font-size:12px}
    .modal-head,.modal-form{padding:22px 18px 22px}
}

/* roulang page: category4 */
:root {
  --primary: #2563eb;
  --primary-deep: #1e3a6f;
  --primary-deep-2: #122e5e;
  --primary-tint: #eef4ff;
  --accent: #f97316;
  --accent-deep: #d65f0b;
  --bg: #f4f8fd;
  --card: #ffffff;
  --text: #24344d;
  --text-weak: #65758d;
  --line: rgba(37, 99, 235, 0.14);
  --shadow-sm: 0 4px 16px rgba(16, 44, 100, 0.08);
  --shadow-md: 0 14px 34px rgba(16, 44, 100, 0.12);
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 9px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Hiragino Sans GB", "Source Han Sans SC", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
}
button,
input,
select,
textarea {
  font-family: inherit;
}
a {
  color: inherit;
  text-decoration: none;
}
ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
h1,
h2,
h3,
h4,
p {
  margin-top: 0;
}
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
}
.row {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 22px;
  display: flex;
  flex-wrap: wrap;
}
.columns {
  padding: 0 14px;
  margin-bottom: 24px;
}
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 22px;
}

/* ------------------------------------------------------------------ */
/* Button                                                              */
/* ------------------------------------------------------------------ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 46px;
  padding: 0 22px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.25s var(--ease), transform 0.25s var(--ease), box-shadow 0.25s var(--ease), color 0.2s;
  white-space: nowrap;
}
.btn:active {
  transform: translateY(1px);
}
.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  box-shadow: 0 10px 22px rgba(249, 115, 22, 0.24);
}
.btn-primary:hover {
  background: var(--accent-deep);
  border-color: var(--accent-deep);
  transform: translateY(-2px);
  box-shadow: 0 14px 28px rgba(249, 115, 22, 0.3);
}
.btn-outline {
  background: #fff;
  border-color: rgba(37, 99, 235, 0.35);
  color: var(--primary);
}
.btn-outline:hover {
  background: var(--primary-tint);
  border-color: rgba(37, 99, 235, 0.6);
  transform: translateY(-2px);
}
.btn-large {
  min-height: 52px;
  padding: 0 30px;
  font-size: 16px;
  border-radius: 12px;
}

/* ------------------------------------------------------------------ */
/* Site header                                                         */
/* ------------------------------------------------------------------ */
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--line);
  box-shadow: 0 4px 18px rgba(16, 44, 100, 0.045);
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  min-height: 76px;
  padding: 0 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.logo-link {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 48px;
}
.logo-link .logo-mark {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(145deg, #2e6afa, #1446b8);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  box-shadow: 0 8px 18px rgba(37, 99, 235, 0.26);
}
.logo-link .logo-text {
  font-size: 21px;
  font-weight: 800;
  letter-spacing: 0;
  color: var(--primary-deep);
}
.logo-link .logo-mini {
  background: var(--primary-tint);
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
  border-radius: 999px;
  padding: 3px 9px;
}
.main-nav {
  display: flex;
  align-items: center;
}
.nav-links {
  display: flex;
  gap: 4px;
  align-items: center;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 15px;
  color: #43536b;
  font-size: 15px;
  font-weight: 500;
  border-radius: 8px;
  position: relative;
  transition: color 0.2s, background 0.2s;
}
.nav-link:hover {
  color: var(--primary);
  background: var(--primary-tint);
}
.nav-link.active {
  color: var(--primary);
  background: var(--primary-tint);
  font-weight: 700;
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}
.search-box {
  position: relative;
  display: flex;
  align-items: center;
}
.search-box input {
  width: 220px;
  height: 44px;
  border: 1px solid transparent;
  background: #f1f5fb;
  border-radius: 999px;
  padding: 0 16px 0 18px;
  font-size: 14px;
  color: var(--text);
  transition: border 0.2s, background 0.2s, width 0.3s;
  outline: none;
}
.search-box input:focus {
  background: #fff;
  border-color: rgba(37, 99, 235, 0.4);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.06);
}
.search-box button {
  position: absolute;
  right: 3px;
  top: 3px;
  width: 38px;
  height: 38px;
  background: transparent;
  border: none;
  border-radius: 50%;
  color: #5a6f8c;
  font-size: 15px;
  cursor: pointer;
  transition: background 0.2s;
}
.search-box button:hover {
  background: #e6eefb;
  color: var(--primary);
}
.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--primary-deep);
  font-size: 19px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

/* ------------------------------------------------------------------ */
/* Page hero sub category4                                             */
/* ------------------------------------------------------------------ */
.page-hero-sub {
  background: linear-gradient(180deg, #fff 0%, #f2f7ff 100%);
  border-bottom: 1px solid var(--line);
  padding: 58px 0 50px;
  position: relative;
  overflow: hidden;
}
.page-hero-sub::before {
  content: "";
  position: absolute;
  width: 360px;
  height: 360px;
  left: -130px;
  top: -130px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.13), transparent 68%);
  border-radius: 50%;
  pointer-events: none;
}
.hero-grid-4 {
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  gap: 46px;
  align-items: center;
  position: relative;
}
.cat4-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(37, 99, 235, 0.1);
  color: var(--primary);
  border-radius: 999px;
  padding: 6px 15px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 16px;
}
.page-hero-title {
  font-size: clamp(34px, 4.2vw, 50px);
  line-height: 1.28;
  color: var(--primary-deep-2);
  font-weight: 800;
  margin-bottom: 18px;
  letter-spacing: 0;
}
.page-hero-title span {
  color: var(--primary);
}
.hero-sub-copy {
  font-size: 17px;
  color: #4c5d76;
  line-height: 1.9;
  max-width: 620px;
  margin-bottom: 26px;
}
.hero-mini-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 26px;
}
.hero-mini-list span {
  background: #fff;
  border: 1px solid var(--line);
  color: #405272;
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 13px;
  box-shadow: var(--shadow-sm);
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.hero-visual-img {
  border-radius: 22px;
  box-shadow: 0 24px 48px rgba(21, 62, 130, 0.16);
  overflow: hidden;
  position: relative;
  background: #dceaff;
}
.hero-visual-img img {
  width: 100%;
  height: 340px;
  object-fit: cover;
}

/* ------------------------------------------------------------------ */
/* Section head and common blocks                                      */
/* ------------------------------------------------------------------ */
.section {
  padding: 76px 0;
}
.section-narrow {
  padding: 52px 0;
}
.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 22px;
  flex-wrap: wrap;
  margin-bottom: 38px;
}
.section-header h2 {
  font-size: clamp(27px, 2.6vw, 34px);
  font-weight: 800;
  color: var(--primary-deep-2);
  margin-bottom: 8px;
  position: relative;
  line-height: 1.4;
}
.section-header h2::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 28px;
  border-radius: 999px;
  background: var(--accent);
  margin-right: 13px;
  vertical-align: -5px;
}
.section-header p {
  margin-bottom: 0;
  color: var(--text-weak);
  font-size: 16px;
}
.section-sub-head {
  color: var(--text-weak);
  font-size: 16px;
  line-height: 1.8;
  max-width: 760px;
}

/* ------------------------------------------------------------------ */
/* Category4 topic cards                                               */
/* ------------------------------------------------------------------ */
.topic-grid .columns {
  margin-bottom: 22px;
}
.topic-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 26px 22px 20px;
  position: relative;
  box-shadow: var(--shadow-sm);
  min-height: 220px;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s var(--ease), box-shadow 0.3s, border-color 0.3s;
}
.topic-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: rgba(37, 99, 235, 0.3);
}
.topic-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}
.topic-no {
  font-size: 14px;
  font-weight: 800;
  color: #b8c8e0;
  letter-spacing: 1px;
}
.topic-icon {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: var(--primary-tint);
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 23px;
}
.topic-card h3 {
  font-size: 19px;
  font-weight: 800;
  color: var(--primary-deep-2);
  margin-bottom: 10px;
  line-height: 1.5;
}
.topic-card p {
  color: var(--text-weak);
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 16px;
  flex: 1;
}
.topic-card .topic-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  border: none;
  background: none;
  padding: 0;
  cursor: pointer;
  min-height: 36px;
}
.topic-card .topic-link:hover {
  color: var(--accent);
}

/* ------------------------------------------------------------------ */
/* FAQ filter area                                                     */
/* ------------------------------------------------------------------ */
.faq-filter-wrap {
  background: #fff;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 30px 0 20px;
  margin: 0 0 42px;
}
.filter-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}
.filter-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 19px;
  background: #f0f5fc;
  color: #4e6080;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s var(--ease);
}
.filter-tag i {
  font-size: 13px;
  margin-right: 7px;
  opacity: 0.72;
}
.filter-tag:hover {
  background: var(--primary-tint);
  color: var(--primary);
  border-color: rgba(37, 99, 235, 0.2);
}
.filter-tag.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  box-shadow: 0 10px 20px rgba(37, 99, 235, 0.2);
}
.filter-hint {
  text-align: center;
  color: var(--text-weak);
  font-size: 13px;
  margin: 14px 0 0;
}

/* ------------------------------------------------------------------ */
/* Category4 global divider FAQ                                        */
/* ------------------------------------------------------------------ */
#helpFaqSection {
  padding-top: 18px;
}
.faq-center {
  max-width: 980px;
  margin: 0 auto;
}
.faq-item {
  margin-bottom: 0;
  border-bottom: 1px solid rgba(37, 99, 235, 0.12);
}
.faq-item:last-child {
  border-bottom: none;
}
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 18px;
  text-align: left;
  background: none;
  border: none;
  padding: 23px 6px;
  cursor: pointer;
  border-radius: 0;
  min-height: 64px;
  color: #233957;
  transition: background 0.2s;
}
.faq-q:hover {
  background: #f6faff;
}
.faq-q .faq-index {
  color: var(--primary);
  font-weight: 800;
  font-size: 14px;
  width: 30px;
  text-align: center;
  flex: 0 0 30px;
}
.faq-q .faq-title {
  font-size: 17px;
  font-weight: 700;
  flex: 1;
  line-height: 1.55;
}
.faq-q .faq-cat {
  background: rgba(37, 99, 235, 0.1);
  color: var(--primary);
  border-radius: 999px;
  font-size: 12px;
  padding: 3px 10px;
  white-space: nowrap;
}
.faq-q .faq-switch {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #edf3fb;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s, background 0.3s;
}
.faq-item.open .faq-q .faq-switch {
  background: var(--primary);
  color: #fff;
  transform: rotate(45deg);
}
.faq-a {
  display: none;
  padding: 4px 42px 28px 55px;
  color: #51627a;
  font-size: 15.5px;
  line-height: 2;
}
.faq-a p {
  margin-bottom: 8px;
}
.faq-a .safe-tip {
  background: var(--primary-tint);
  border-left: 3px solid var(--primary);
  border-radius: 8px;
  padding: 12px 16px;
  color: #4c5d75;
  margin-top: 10px;
}
.no-faq-tip {
  text-align: center;
  padding: 40px 20px;
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px dashed var(--line);
  color: var(--text-weak);
  font-size: 15px;
  display: none;
}

/* ------------------------------------------------------------------ */
/* Bottom CTA help banner                                              */
/* ------------------------------------------------------------------ */
.wide-help-card {
  background: #fff;
  border-radius: 24px;
  padding: 54px 30px;
  position: relative;
  overflow: hidden;
  background-image: url("/assets/images/backpic/back-2.webp");
  background-position: center;
  background-size: cover;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(37, 99, 235, 0.08);
}
.wide-help-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(255, 255, 255, 0.95) 30%, rgba(255, 255, 255, 0.76) 70%, rgba(235, 243, 255, 0.88) 100%);
}
.wide-help-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  max-width: 760px;
  margin: 0 auto;
}
.wide-help-content .help-em {
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
  background: rgba(249, 115, 22, 0.12);
  border-radius: 999px;
  padding: 5px 14px;
  margin-bottom: 16px;
}
.wide-help-content h2 {
  font-size: clamp(25px, 3vw, 34px);
  color: var(--primary-deep-2);
  font-weight: 800;
  margin-bottom: 16px;
  line-height: 1.5;
}
.wide-help-content p {
  font-size: 16px;
  color: #445a76;
  margin-bottom: 27px;
  max-width: 640px;
}
.wide-help-actions {
  display: flex;
  gap: 13px;
  flex-wrap: wrap;
  justify-content: center;
}
.help-support-note {
  font-size: 13px;
  color: #6d7d94;
  background: rgba(255, 255, 255, 0.75);
  border-radius: 999px;
  margin-top: 20px;
  padding: 6px 16px;
}

/* ------------------------------------------------------------------ */
/* Footer                                                              */
/* ------------------------------------------------------------------ */
.site-footer {
  background: #102b4f;
  color: rgba(255, 255, 255, 0.82);
  padding: 58px 0 28px;
  margin-top: 78px;
  font-size: 15px;
}
.site-footer .footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 32px;
}
.footer-brand .logo-link {
  margin-bottom: 14px;
}
.footer-brand .logo-link .logo-mark {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.15);
  box-shadow: none;
}
.footer-brand .logo-text {
  color: #fff;
  font-size: 21px;
}
.footer-brand p {
  font-size: 14.5px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.64);
  margin: 10px 0 18px;
}
.footer-security {
  display: flex;
  gap: 7px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.72);
  border-radius: 10px;
  line-height: 1.7;
  background: rgba(255, 255, 255, 0.06);
  padding: 10px 13px;
}
.footer-security i {
  margin-top: 5px;
  color: #9cc0ff;
}
.footer-title {
  color: #fff;
  font-size: 16px;
  font-weight: 800;
  margin-bottom: 20px;
  padding-top: 6px;
}
.footer-links li a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.65);
  padding: 6px 0;
  font-size: 14.5px;
  transition: color 0.2s, padding-left 0.2s;
}
.footer-links li a:hover {
  color: #fff;
  padding-left: 5px;
}
.footer-contact-line {
  display: flex;
  gap: 11px;
  align-items: center;
  color: rgba(255, 255, 255, 0.65);
  margin-bottom: 14px;
}
.footer-contact-line i {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #8fd0ff;
  font-size: 15px;
}
.line-label {
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.48);
}
.line-value {
  font-size: 14.5px;
  color: rgba(255, 255, 255, 0.83);
}
.footer-btm {
  border-top: 1px solid rgba(255, 255, 255, 0.13);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  color: rgba(255, 255, 255, 0.45);
  font-size: 13px;
  gap: 12px;
}

/* ------------------------------------------------------------------ */
/* Reveal modal                                                        */
/* ------------------------------------------------------------------ */
.consult-modal {
  border: none;
  border-radius: 20px;
  max-width: 600px;
  padding: 0;
  box-shadow: 0 30px 80px rgba(5, 18, 45, 0.3);
  overflow: hidden;
}
.modal-head {
  background: linear-gradient(135deg, #1d55c9, #163e84);
  color: #fff;
  padding: 24px 26px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 15px;
}
.modal-head h3 {
  margin: 0;
  font-size: 20px;
  font-weight: 800;
  display: flex;
  gap: 9px;
  align-items: center;
}
.modal-head p {
  margin: 5px 0 0;
  color: rgba(255, 255, 255, 0.74);
  font-size: 13px;
}
.modal-close {
  width: 42px;
  height: 42px;
  border: none;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  font-size: 18px;
  cursor: pointer;
  flex: 0 0 42px;
  transition: background 0.2s;
}
.modal-close:hover {
  background: rgba(255, 255, 255, 0.3);
}
.modal-body {
  padding: 26px;
}
.modal-body .form-label {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: #243a59;
  margin-bottom: 6px;
}
.modal-body input,
.modal-body select,
.modal-body textarea {
  width: 100%;
  min-height: 46px;
  border: 1px solid rgba(37, 99, 235, 0.18);
  border-radius: 10px;
  padding: 0 14px;
  background: #fff;
  color: var(--text);
  font-size: 15px;
  margin-bottom: 16px;
  transition: border 0.2s, box-shadow 0.2s;
}
.modal-body textarea {
  padding-top: 12px;
  min-height: 96px;
  resize: vertical;
}
.modal-body input:focus,
.modal-body select:focus,
.modal-body textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.07);
}
.modal-body .privacy-note {
  font-size: 12px;
  color: #8b9ab1;
  line-height: 1.7;
  background: #f5f8fd;
  border-radius: 9px;
  padding: 9px 12px;
  margin-top: 7px;
}
.modal-tip {
  display: none;
  background: #e9f7ee;
  color: #247a50;
  border: 1px solid #b6e6ca;
  font-size: 14px;
  border-radius: 10px;
  padding: 11px 14px;
  margin-bottom: 10px;
}
.modal-tip.show {
  display: block;
}

/* ------------------------------------------------------------------ */
/* Responsive                                                          */
/* ------------------------------------------------------------------ */
@media (max-width: 1100px) {
  .search-box {
    display: none;
  }
}
@media (max-width: 1024px) {
  .header-inner {
    min-height: 70px;
    gap: 14px;
  }
  .main-nav {
    width: 100%;
    order: 3;
    display: none;
    border-top: 1px solid var(--line);
    margin-top: 10px;
  }
  .main-nav.open {
    display: block;
  }
  .nav-links {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 8px 0 16px;
  }
  .nav-link {
    width: 100%;
    border-radius: 10px;
  }
  .menu-toggle {
    display: inline-flex;
  }
  .hero-grid-4 {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .hero-visual-img img {
    height: 280px;
  }
  .site-footer .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 34px;
  }
}
@media (max-width: 768px) {
  .section {
    padding: 52px 0;
  }
  .page-hero-sub {
    padding: 42px 0;
  }
  .header-actions .btn-consult {
    width: 46px;
    padding: 0;
    font-size: 0;
  }
  .header-actions .btn-consult i {
    margin: 0;
    font-size: 16px;
  }
  .page-hero-title {
    font-size: 31px;
  }
  .hero-sub-copy {
    font-size: 16px;
  }
  .section-header h2 {
    font-size: 25px;
  }
  .faq-q {
    padding: 18px 4px;
    gap: 11px;
  }
  .faq-q .faq-cat {
    display: none;
  }
  .faq-q .faq-title {
    font-size: 15.5px;
  }
  .faq-a {
    padding: 0 12px 24px;
    font-size: 15px;
  }
  .wide-help-card {
    padding: 34px 20px;
  }
  .wide-help-actions .btn {
    width: 100%;
  }
}
@media (max-width: 520px) {
  .row,
  .container,
  .header-inner {
    padding-left: 16px;
    padding-right: 16px;
  }
  .site-footer .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-btm {
    flex-direction: column;
  }
  .topic-card {
    padding: 21px 18px 16px;
  }
  .logo-link .logo-mark {
    width: 38px;
    height: 38px;
    font-size: 18px;
  }
  .logo-link .logo-text {
    font-size: 18px;
  }
  .filter-tag {
    padding: 0 13px;
    font-size: 13px;
    min-height: 40px;
  }
  .faq-q .faq-index {
    width: 22px;
    flex-basis: 22px;
  }
  .hero-visual-img img {
    height: 215px;
  }
}