/* roulang page: index */
:root {
  --primary: #c8102e;
  --primary-dark: #8f0d22;
  --primary-soft: #fdeef0;
  --secondary: #16162a;
  --secondary-soft: #f4f3f8;
  --accent: #d4a44a;
  --accent-soft: #fbf6ec;
  --bg-light: #f6f4f2;
  --bg-white: #ffffff;
  --bg-dark: #16162a;
  --text-main: #29293d;
  --text-muted: #6f6f85;
  --border: #eae5e2;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 12px rgba(22,22,42,.06);
  --shadow-md: 0 10px 32px rgba(22,22,42,.1);
  --shadow-lg: 0 20px 50px rgba(22,22,42,.14);
  --transition: all .3s ease;
  --font-family: "PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-family);
  color:var(--text-main);
  background:var(--bg-light);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
a{text-decoration:none;color:inherit;transition:var(--transition)}
img{max-width:100%;height:auto;display:block}
button,input{font-family:inherit}
.container{max-width:1200px}
.text-muted{color:var(--text-muted)!important}

/* ===== Header / Nav ===== */
.site-header{
  background:var(--bg-white);
  border-bottom:1px solid var(--border);
  box-shadow:0 2px 18px rgba(22,22,42,.04);
  position:sticky;
  top:0;
  z-index:1050;
}
.navbar{
  padding:14px 0;
  background:var(--bg-white);
}
.navbar-brand{
  display:flex;
  align-items:center;
  gap:10px;
  margin-right:0;
  font-weight:800;
  font-size:1.08rem;
  color:var(--text-main);
  letter-spacing:.2px;
  line-height:1.2;
}
.navbar-brand .brand-icon{
  width:42px;
  height:42px;
  border-radius:12px;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  display:flex;
  align-items:center;
  justify-content:center;
  color:#fff;
  font-size:1rem;
  box-shadow:0 4px 14px rgba(200,16,46,.28);
  flex-shrink:0;
}
.navbar-brand .brand-text{
  max-width:230px;
}
.navbar-nav{
  gap:6px;
}
.navbar-nav .nav-link{
  padding:9px 16px !important;
  border-radius:40px;
  font-weight:600;
  font-size:.95rem;
  color:var(--text-main) !important;
  position:relative;
}
.navbar-nav .nav-link:hover{
  color:var(--primary) !important;
  background:var(--primary-soft);
}
.navbar-nav .nav-link.active{
  color:var(--primary) !important;
  background:var(--primary-soft);
}
.navbar-toggler{
  border:1px solid var(--border);
  border-radius:10px;
  padding:6px 10px;
}
.navbar-toggler:focus{box-shadow:none;border-color:var(--primary)}
.navbar-toggler-icon{
  background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(41,41,61,0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e") !important;
}
.nav-right{
  display:flex;
  align-items:center;
  gap:12px;
  margin-left:20px;
}
.search-box{
  position:relative;
}
.search-box input{
  width:180px;
  height:40px;
  border-radius:40px;
  border:1px solid var(--border);
  background:var(--bg-light);
  padding:0 42px 0 18px;
  font-size:.88rem;
  outline:none;
  color:var(--text-main);
  transition:var(--transition);
}
.search-box input:focus{
  border-color:var(--primary);
  background:#fff;
  box-shadow:0 0 0 4px rgba(200,16,46,.08);
}
.search-box button{
  position:absolute;
  right:4px;
  top:4px;
  width:32px;
  height:32px;
  border:none;
  border-radius:50%;
  background:var(--primary);
  color:#fff;
  font-size:.85rem;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:center;
  transition:var(--transition);
}
.search-box button:hover{background:var(--primary-dark)}
.btn-nav-cta{
  height:40px;
  padding:0 22px;
  border-radius:40px;
  background:var(--primary);
  color:#fff !important;
  font-weight:700;
  font-size:.9rem;
  display:inline-flex;
  align-items:center;
  gap:6px;
  transition:var(--transition);
  border:none;
  box-shadow:0 4px 12px rgba(200,16,46,.25);
}
.btn-nav-cta:hover{
  background:var(--primary-dark);
  transform:translateY(-2px);
  box-shadow:0 6px 18px rgba(200,16,46,.32);
}

/* ===== Buttons ===== */
.btn-main{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:14px 32px;
  border-radius:50px;
  background:var(--primary);
  color:#fff;
  font-weight:700;
  font-size:1rem;
  border:none;
  box-shadow:0 6px 20px rgba(200,16,46,.3);
  transition:var(--transition);
}
.btn-main:hover{
  background:var(--primary-dark);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 10px 28px rgba(200,16,46,.4);
}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:14px 32px;
  border-radius:50px;
  background:transparent;
  color:#fff;
  font-weight:600;
  font-size:1rem;
  border:2px solid rgba(255,255,255,.7);
  transition:var(--transition);
}
.btn-ghost:hover{
  background:rgba(255,255,255,.15);
  color:#fff;
  transform:translateY(-2px);
  border-color:#fff;
}
.btn-light-solid{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:12px 28px;
  border-radius:50px;
  background:var(--secondary);
  color:#fff;
  font-weight:600;
  border:none;
  box-shadow:var(--shadow-md);
  transition:var(--transition);
}
.btn-light-solid:hover{
  background:var(--primary);
  color:#fff;
  transform:translateY(-2px);
}

/* ===== Hero ===== */
.hero-section{
  position:relative;
  background:linear-gradient(135deg,#14142a 0%,#1e1e38 55%,#2a1830 100%);
  padding:100px 0 90px;
  overflow:hidden;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
}
.hero-section::before{
  content:"";
  position:absolute;
  inset:0;
  background:rgba(20,20,40,.78);
  z-index:1;
}
.hero-section::after{
  content:"";
  position:absolute;
  bottom:-80px;
  right:-60px;
  width:380px;
  height:380px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(200,16,46,.18),transparent 65%);
  z-index:1;
}
.hero-section .container{position:relative;z-index:2}
.hero-badge{
  margin-bottom:18px;
}
.hero-badge .badge-pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 18px;
  border-radius:40px;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.22);
  color:#f0d08a;
  font-size:.86rem;
  font-weight:600;
  backdrop-filter:blur(8px);
  letter-spacing:.3px;
}
.hero-title{
  font-size:2.9rem;
  font-weight:800;
  color:#fff;
  line-height:1.2;
  margin-bottom:20px;
  letter-spacing:.5px;
}
.hero-title span{
  color:var(--accent);
  position:relative;
}
.hero-sub{
  font-size:1.12rem;
  color:rgba(255,255,255,.82);
  max-width:600px;
  margin-bottom:34px;
  line-height:1.8;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:16px;
  margin-bottom:40px;
}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:22px;
}
.hero-meta span{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:rgba(255,255,255,.75);
  font-size:.9rem;
  font-weight:500;
}
.hero-meta i{
  color:var(--accent);
}
.login-panel{
  background:rgba(255,255,255,.96);
  border-radius:var(--radius-lg);
  padding:34px 30px;
  box-shadow:0 25px 60px rgba(0,0,0,.3);
  backdrop-filter:blur(12px);
  border:1px solid rgba(255,255,255,.6);
  max-width:380px;
  margin-left:auto;
}
.panel-head{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:22px;
}
.panel-head .head-icon{
  width:38px;
  height:38px;
  border-radius:10px;
  background:var(--primary);
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:.95rem;
}
.panel-head .head-text{
  font-weight:700;
  font-size:1.05rem;
  color:var(--text-main);
}
.panel-head .head-sub{
  font-size:.8rem;
  color:var(--text-muted);
}
.panel-body{
  display:flex;
  flex-direction:column;
  gap:12px;
}
.panel-btn{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:14px;
  border-radius:12px;
  font-weight:600;
  font-size:.94rem;
  transition:var(--transition);
}
.panel-btn.primary-btn{
  background:var(--primary);
  color:#fff;
  box-shadow:0 4px 14px rgba(200,16,46,.25);
}
.panel-btn.primary-btn:hover{
  background:var(--primary-dark);
  transform:translateY(-2px);
}
.panel-btn.outline-btn{
  border:1px solid var(--border);
  color:var(--text-main);
  background:#fff;
}
.panel-btn.outline-btn:hover{
  border-color:var(--primary);
  color:var(--primary);
  background:var(--primary-soft);
  transform:translateY(-2px);
}
.panel-foot{
  margin-top:20px;
  text-align:center;
  font-size:.82rem;
  color:var(--text-muted);
  border-top:1px dashed var(--border);
  padding-top:16px;
  display:flex;
  align-items:center;
  justify-content:center;
  gap:6px;
}
.panel-foot i{color:#27a06b}

/* ===== Section Common ===== */
.section-padding{
  padding:90px 0;
}
.section-padding-sm{
  padding:60px 0;
}
.section-head{
  text-align:center;
  max-width:640px;
  margin:0 auto 56px;
}
.section-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:.82rem;
  font-weight:700;
  letter-spacing:2px;
  text-transform:uppercase;
  color:var(--primary);
  background:var(--primary-soft);
  padding:7px 18px;
  border-radius:30px;
  margin-bottom:14px;
}
.section-head h2{
  font-size:2.1rem;
  font-weight:800;
  color:var(--text-main);
  margin-bottom:12px;
  letter-spacing:.3px;
}
.section-head p{
  color:var(--text-muted);
  font-size:1rem;
  line-height:1.7;
}

/* ===== Features ===== */
.features-section{
  background:var(--bg-white);
}
.features-section .container{
  padding-top:90px;
  padding-bottom:90px;
}
.feature-card{
  background:var(--bg-light);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  padding:34px 28px;
  height:100%;
  transition:var(--transition);
}
.feature-card:hover{
  background:#fff;
  border-color:rgba(200,16,46,.25);
  box-shadow:var(--shadow-md);
  transform:translateY(-6px);
}
.feature-icon{
  width:58px;
  height:58px;
  border-radius:16px;
  background:var(--primary);
  color:#fff;
  font-size:1.3rem;
  display:flex;
  align-items:center;
  justify-content:center;
  margin-bottom:22px;
  box-shadow:0 8px 22px rgba(200,16,46,.24);
}
.feature-card:nth-child(2) .feature-icon{background:var(--secondary)}
.feature-card:nth-child(3) .feature-icon{background:var(--accent)}
.feature-card:nth-child(4) .feature-icon{background:#2d8b78}
.feature-card h3{
  font-size:1.16rem;
  font-weight:700;
  margin-bottom:10px;
  color:var(--text-main);
}
.feature-card p{
  font-size:.92rem;
  color:var(--text-muted);
  margin-bottom:0;
  line-height:1.7;
}

/* ===== Category Cards ===== */
.category-section{
  background:var(--bg-light);
  padding:90px 0;
}
.category-card{
  background:#fff;
  border-radius:var(--radius-md);
  overflow:hidden;
  border:1px solid var(--border);
  box-shadow:var(--shadow-sm);
  transition:var(--transition);
  height:100%;
  display:flex;
  flex-direction:column;
}
.category-card:hover{
  box-shadow:var(--shadow-lg);
  transform:translateY(-8px);
  border-color:rgba(200,16,46,.18);
}
.cat-img{
  position:relative;
  height:200px;
  overflow:hidden;
}
.cat-img img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.category-card:hover .cat-img img{
  transform:scale(1.06);
}
.cat-img::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(to top,rgba(22,22,42,.35),transparent 50%);
}
.cat-body{
  padding:26px 24px 28px;
  flex:1;
  display:flex;
  flex-direction:column;
}
.badge-cat{
  display:inline-flex;
  align-items:center;
  gap:6px;
  background:var(--primary-soft);
  color:var(--primary);
  font-size:.75rem;
  font-weight:700;
  padding:5px 12px;
  border-radius:20px;
  margin-bottom:12px;
  align-self:flex-start;
  letter-spacing:.4px;
}
.cat-body h3{
  font-size:1.18rem;
  font-weight:700;
  margin-bottom:10px;
  color:var(--text-main);
}
.cat-body p{
  font-size:.9rem;
  color:var(--text-muted);
  line-height:1.7;
  margin-bottom:18px;
  flex-grow:1;
}
.card-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-weight:700;
  font-size:.88rem;
  color:var(--primary);
}
.card-link i{
  transition:transform .3s ease;
}
.card-link:hover{
  color:var(--primary-dark);
}
.card-link:hover i{
  transform:translateX(4px);
}

/* ===== Intro / About ===== */
.intro-section{
  background:var(--bg-white);
  padding:90px 0;
}
.intro-image{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-lg);
  height:100%;
  min-height:340px;
}
.intro-image img{
  width:100%;
  height:100%;
  object-fit:cover;
  position:absolute;
  inset:0;
}
.intro-image .exp-badge{
  position:absolute;
  bottom:20px;
  left:20px;
  background:rgba(22,22,42,.85);
  color:#fff;
  border-radius:16px;
  padding:14px 20px;
  backdrop-filter:blur(8px);
  border:1px solid rgba(255,255,255,.2);
}
.intro-image .exp-badge strong{
  font-size:1.6rem;
  display:block;
  color:var(--accent);
  line-height:1.2;
}
.intro-image .exp-badge span{
  font-size:.8rem;
  opacity:.85;
}
.intro-content{
  padding-left:30px;
}
.intro-content .section-tag{
  margin-bottom:14px;
}
.intro-content h2{
  font-size:1.95rem;
  font-weight:800;
  margin-bottom:18px;
  line-height:1.3;
  color:var(--text-main);
}
.intro-content p{
  color:var(--text-muted);
  line-height:1.8;
  margin-bottom:16px;
  font-size:.98rem;
}
.intro-list{
  list-style:none;
  padding:0;
  margin:22px 0 0;
}
.intro-list li{
  display:flex;
  align-items:flex-start;
  gap:12px;
  margin-bottom:14px;
  font-size:.95rem;
  color:var(--text-main);
}
.intro-list li i{
  color:var(--primary);
  margin-top:4px;
  flex-shrink:0;
}

/* ===== News ===== */
.news-section{
  background:var(--bg-light);
  padding:90px 0;
}
.news-card{
  background:#fff;
  border-radius:var(--radius-md);
  overflow:hidden;
  border:1px solid var(--border);
  box-shadow:var(--shadow-sm);
  transition:var(--transition);
  height:100%;
  display:flex;
  flex-direction:column;
}
.news-card:hover{
  box-shadow:var(--shadow-md);
  transform:translateY(-6px);
}
.news-thumb{
  position:relative;
  height:170px;
  overflow:hidden;
}
.news-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .45s ease;
}
.news-card:hover .news-thumb img{
  transform:scale(1.06);
}
.thumb-badge{
  position:absolute;
  top:14px;
  left:14px;
  background:rgba(22,22,42,.78);
  backdrop-filter:blur(6px);
  color:#fff;
  font-size:.73rem;
  font-weight:600;
  padding:4px 12px;
  border-radius:20px;
}
.news-card-body{
  padding:22px 22px 20px;
  flex:1;
  display:flex;
  flex-direction:column;
}
.news-card-body h4{
  font-size:1rem;
  font-weight:700;
  line-height:1.5;
  margin-bottom:10px;
}
.news-card-body h4 a{
  color:var(--text-main);
}
.news-card-body h4 a:hover{
  color:var(--primary);
}
.news-card-body p{
  font-size:.88rem;
  color:var(--text-muted);
  line-height:1.65;
  margin-bottom:14px;
  flex-grow:1;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-meta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  border-top:1px solid #f2f0ee;
  padding-top:14px;
}
.news-meta span{
  font-size:.8rem;
  color:var(--text-muted);
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.news-meta a{
  width:32px;
  height:32px;
  border-radius:50%;
  background:var(--primary-soft);
  color:var(--primary);
  font-size:.8rem;
  display:flex;
  align-items:center;
  justify-content:center;
  transition:var(--transition);
}
.news-meta a:hover{
  background:var(--primary);
  color:#fff;
}
.empty-box{
  text-align:center;
  padding:50px 20px;
  background:#fff;
  border-radius:var(--radius-md);
  border:1px dashed var(--border);
  color:var(--text-muted);
  font-size:1rem;
}

/* ===== Stats ===== */
.stats-section{
  background:var(--bg-dark);
  padding:70px 0;
  background-image:url('/assets/images/backpic/back-3.png');
  background-size:cover;
  background-position:center;
  background-blend-mode:overlay;
  position:relative;
}
.stats-section::before{
  content:"";
  position:absolute;
  inset:0;
  background:rgba(22,22,42,.86);
}
.stats-section .container{
  position:relative;
  z-index:2;
}
.stats-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:30px;
}
.stat-item{
  text-align:center;
  padding:20px 10px;
}
.stat-num{
  font-size:2.6rem;
  font-weight:800;
  color:#fff;
  display:block;
  margin-bottom:8px;
  line-height:1.1;
}
.stat-num em{
  font-style:normal;
  color:var(--accent);
}
.stat-label{
  color:rgba(255,255,255,.65);
  font-size:.95rem;
  letter-spacing:.5px;
}

/* ===== Process ===== */
.process-section{
  background:var(--bg-white);
  padding:90px 0;
}
.process-step{
  text-align:center;
  padding:18px 20px;
  position:relative;
}
.step-num{
  width:44px;
  height:44px;
  margin:0 auto 20px;
  background:var(--primary);
  color:#fff;
  font-size:1.05rem;
  font-weight:800;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:0 6px 18px rgba(200,16,46,.28);
  position:relative;
  z-index:2;
}
.process-step:not(:last-child)::after{
  content:"";
  position:absolute;
  top:43px;
  left:calc(50% + 32px);
  width:calc(100% - 64px);
  height:2px;
  background:linear-gradient(to right,var(--primary),rgba(200,16,46,.2));
  z-index:1;
}
.step-icon{
  font-size:1.8rem;
  color:var(--primary);
  margin-bottom:14px;
}
.step-title{
  font-size:1.08rem;
  font-weight:700;
  color:var(--text-main);
  margin-bottom:8px;
}
.step-desc{
  font-size:.88rem;
  color:var(--text-muted);
  line-height:1.6;
  max-width:220px;
  margin:0 auto;
}

/* ===== FAQ ===== */
.faq-section{
  background:var(--bg-light);
  padding:90px 0;
}
.accordion{
  max-width:780px;
  margin:0 auto;
}
.accordion-item{
  border:1px solid var(--border)!important;
  border-radius:var(--radius-md)!important;
  overflow:hidden;
  margin-bottom:16px;
  background:#fff;
  box-shadow:var(--shadow-sm);
}
.accordion-button{
  padding:20px 24px;
  font-weight:600;
  font-size:1rem;
  color:var(--text-main)!important;
  background:#fff;
  border:none;
}
.accordion-button:not(.collapsed){
  background:var(--primary-soft);
  color:var(--primary)!important;
  box-shadow:none;
}
.accordion-button:focus{
  box-shadow:none;
  border-color:rgba(200,16,46,.3);
}
.accordion-button::after{
  background-size:1rem;
  transition:var(--transition);
}
.accordion-body{
  padding:18px 24px 22px;
  color:var(--text-muted);
  font-size:.93rem;
  line-height:1.75;
  border-top:1px solid #f5f2f0;
}

/* ===== CTA ===== */
.cta-section{
  background:url('/assets/images/backpic/back-2.png') center/cover;
  padding:100px 0;
  position:relative;
  overflow:hidden;
}
.cta-section::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(200,16,46,.88),rgba(22,22,42,.78));
}
.cta-section .container{
  position:relative;
  z-index:2;
  text-align:center;
  max-width:720px;
}
.cta-section h2{
  font-size:2.3rem;
  font-weight:800;
  color:#fff;
  margin-bottom:16px;
}
.cta-section p{
  color:rgba(255,255,255,.85);
  font-size:1.06rem;
  margin-bottom:36px;
  line-height:1.7;
}
.cta-section .btn-main{
  background:#fff;
  color:var(--primary);
  box-shadow:0 10px 30px rgba(0,0,0,.3);
}
.cta-section .btn-main:hover{
  background:var(--secondary);
  color:#fff;
}

/* ===== Footer ===== */
.site-footer{
  background:var(--bg-dark);
  color:rgba(255,255,255,.7);
  padding:70px 0 30px;
}
.footer-logo{
  display:flex;
  align-items:center;
  gap:12px;
  color:#fff;
  font-size:1.2rem;
  font-weight:800;
  margin-bottom:18px;
}
.footer-logo .footer-brand-icon{
  width:40px;
  height:40px;
  border-radius:12px;
  background:var(--primary);
  display:flex;
  align-items:center;
  justify-content:center;
  color:#fff;
  font-size:.95rem;
}
.footer-desc{
  font-size:.9rem;
  line-height:1.7;
  color:rgba(255,255,255,.55);
  margin-bottom:24px;
}
.footer-title{
  color:#fff;
  font-size:1rem;
  font-weight:700;
  margin-bottom:22px;
  position:relative;
  padding-bottom:10px;
}
.footer-title::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:26px;
  height:3px;
  border-radius:2px;
  background:var(--primary);
}
.footer-links{
  list-style:none;
  padding:0;
  margin:0;
}
.footer-links li{
  margin-bottom:12px;
}
.footer-links a{
  color:rgba(255,255,255,.6);
  font-size:.92rem;
  display:inline-flex;
  align-items:center;
  gap:8px;
}
.footer-links a i{
  font-size:.7rem;
  color:var(--primary);
}
.footer-links a:hover{
  color:#fff;
  padding-left:4px;
}
.footer-contact{
  margin-bottom:10px;
  font-size:.9rem;
  display:flex;
  align-items:flex-start;
  gap:12px;
}
.footer-contact i{
  color:var(--primary);
  margin-top:5px;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding-top:26px;
  margin-top:46px;
  text-align:center;
  font-size:.85rem;
  color:rgba(255,255,255,.45);
}
.footer-bottom a{
  color:rgba(255,255,255,.6);
}
.footer-bottom a:hover{
  color:#fff;
}

/* ===== Responsive ===== */
@media (max-width:1199.98px){
  .hero-title{font-size:2.5rem}
  .stats-grid{gap:20px}
}
@media (max-width:991.98px){
  .navbar-collapse{
    padding-top:18px;
    border-top:1px solid var(--border);
    margin-top:12px;
  }
  .navbar-nav{
    gap:2px;
    margin-bottom:16px;
  }
  .nav-right{
    margin-left:0;
    flex-wrap:wrap;
    width:100%;
  }
  .search-box{
    flex-grow:1;
  }
  .search-box input{width:100%}
  .nav-right .btn-nav-cta{
    flex-shrink:0;
  }
  .hero-section{
    padding:70px 0;
  }
  .hero-title{font-size:2.2rem}
  .login-panel{
    margin:50px auto 0;
    max-width:420px;
  }
  .process-step:not(:last-child)::after{display:none}
  .process-step{
    margin-bottom:30px;
  }
  .stats-grid{
    grid-template-columns:repeat(2,1fr);
  }
  .intro-content{
    padding-left:0;
    margin-top:40px;
  }
  .intro-image{
    min-height:300px;
  }
}
@media (max-width:767.98px){
  .section-padding{padding:60px 0}
  .section-padding-sm{padding:44px 0}
  .category-section,.news-section,.faq-section,.process-section,.intro-section{  padding:60px 0;
  }
  .features-section .container{
    padding-top:60px;
    padding-bottom:60px;
  }
  .hero-section{
    padding:56px 0;
  }
  .hero-title{
    font-size:1.85rem;
  }
  .hero-sub{
    font-size:1rem;
  }
  .hero-actions{
    gap:12px;
  }
  .hero-meta{
    gap:14px;
  }
  .section-head h2{
    font-size:1.65rem;
  }
  .stats-grid{
    grid-template-columns:repeat(2,1fr);
    gap:16px;
  }
  .stat-num{
    font-size:2rem;
  }
  .cta-section h2{
    font-size:1.8rem;
  }
  .footer-bottom{
    font-size:.78rem;
  }
}
@media (max-width:575.98px){
  .navbar-brand .brand-text{
    font-size:.88rem;
    max-width:180px;
  }
  .navbar-brand .brand-icon{
    width:36px;
    height:36px;
    font-size:.85rem;
  }
  .hero-title{
    font-size:1.6rem;
  }
  .hero-sub{
    font-size:.92rem;
  }
  .hero-actions .btn-main,
  .hero-actions .btn-ghost{
    padding:11px 22px;
    font-size:.9rem;
    flex:1;
    justify-content:center;
  }
  .login-panel{
    padding:26px 22px;
  }
  .section-head h2{
    font-size:1.5rem;
  }
  .section-head{
    margin-bottom:40px;
  }
  .search-box input{
    font-size:.82rem;
  }
  .btn-nav-cta{
    padding:0 16px;
    font-size:.82rem;
  }
  .stats-grid{
    grid-template-columns:1fr 1fr;
    gap:12px;
  }
  .stat-num{
    font-size:1.7rem;
  }
  .footer-bottom{
    flex-direction:column;
    gap:6px;
  }
}

/* roulang page: category1 */
:root {
  --primary: #1a56db;
  --primary-dark: #1e40af;
  --primary-light: #dbeafe;
  --accent: #f59e0b;
  --accent-dark: #d97706;
  --dark-bg: #0b1220;
  --dark-card: #111a2e;
  --dark-border: #1e2a44;
  --body-bg: #f6f8fc;
  --text-main: #111827;
  --text-muted: #6b7280;
  --border-color: #e5e7eb;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 8px rgba(17, 24, 39, .06);
  --shadow-md: 0 8px 30px rgba(17, 24, 39, .08);
  --shadow-lg: 0 16px 48px rgba(17, 24, 39, .12);
  --transition: all .25s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
  background-color: var(--body-bg);
  color: var(--text-main);
  line-height: 1.7;
  font-size: 16px;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

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

button, input {
  font-family: inherit;
}

.container {
  max-width: 1200px;
}

/* ===== Header / Navigation ===== */
.site-header {
  background: #ffffff;
  border-bottom: 1px solid var(--border-color);
  box-shadow: 0 2px 12px rgba(15, 23, 42, .04);
  position: sticky;
  top: 0;
  z-index: 1050;
}

.site-header .navbar {
  padding-top: 14px;
  padding-bottom: 14px;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.28rem;
  letter-spacing: .2px;
  color: var(--text-main) !important;
}

.brand-icon {
  width: 40px;
  height: 40px;
  border-radius: 11px;
  background: linear-gradient(135deg, var(--primary), #2563eb);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  box-shadow: 0 4px 12px rgba(26, 86, 219, .3);
}

.brand-text {
  background: linear-gradient(120deg, var(--primary-dark), var(--primary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.navbar-nav .nav-link {
  font-weight: 600;
  font-size: .95rem;
  color: #374151;
  padding: 8px 18px !important;
  border-radius: 999px;
  margin: 0 2px;
  position: relative;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link:focus {
  color: var(--primary);
  background: var(--primary-light);
}

.navbar-nav .nav-link.active {
  color: var(--primary);
  background: var(--primary-light);
}

.navbar-nav .nav-link.active::after {
  display: none;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 14px;
}

.search-box {
  display: flex;
  align-items: center;
  background: #f3f4f6;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 6px 6px 6px 16px;
  transition: var(--transition);
  width: 200px;
}

.search-box:focus-within {
  background: #fff;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26, 86, 219, .12);
}

.search-box input {
  border: none;
  background: transparent;
  outline: none;
  font-size: .88rem;
  width: 100%;
  color: var(--text-main);
}

.search-box button {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: none;
  background: var(--primary);
  color: #fff;
  font-size: .78rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--transition);
}

.search-box button:hover {
  background: var(--primary-dark);
}

.btn-nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--primary), #2563eb);
  color: #fff !important;
  border-radius: 999px;
  padding: 10px 20px;
  font-weight: 700;
  font-size: .88rem;
  white-space: nowrap;
  box-shadow: 0 4px 14px rgba(26, 86, 219, .3);
  transition: var(--transition);
}

.btn-nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(26, 86, 219, .4);
}

/* ===== Hero / Banner ===== */
.page-hero {
  position: relative;
  background-size: cover;
  background-position: center;
  padding: 110px 0 90px;
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(8, 15, 30, .92) 30%, rgba(15, 23, 42, .65) 70%, rgba(10, 20, 40, .55));
}

.page-hero .container {
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, .1);
  border: 1px solid rgba(255, 255, 255, .2);
  backdrop-filter: blur(10px);
  color: #fff;
  font-size: .8rem;
  font-weight: 600;
  padding: 7px 18px;
  border-radius: 999px;
  letter-spacing: .5px;
  margin-bottom: 22px;
}

.hero-badge i {
  color: var(--accent);
}

.page-hero h1 {
  color: #fff;
  font-size: 2.9rem;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 8px;
  letter-spacing: .5px;
}

.page-hero h1 span {
  color: var(--accent);
  position: relative;
}

.page-hero .lead {
  color: rgba(255, 255, 255, .8);
  font-size: 1.08rem;
  max-width: 580px;
  margin: 18px 0 30px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-actions .btn {
  border-radius: 999px;
  padding: 12px 26px;
  font-weight: 700;
  font-size: .95rem;
  transition: var(--transition);
}

.btn-brand-primary {
  background: linear-gradient(135deg, var(--primary), #2563eb);
  border: none;
  color: #fff;
  box-shadow: 0 6px 18px rgba(26, 86, 219, .35);
}

.btn-brand-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(26, 86, 219, .45);
  color: #fff;
}

.btn-outline-light-custom {
  border: 1.5px solid rgba(255, 255, 255, .5);
  color: #fff;
  background: transparent;
}

.btn-outline-light-custom:hover {
  background: rgba(255, 255, 255, .1);
  border-color: #fff;
  color: #fff;
}

/* ===== Breadcrumb ===== */
.breadcrumb-wrap {
  background: #fff;
  border-bottom: 1px solid var(--border-color);
  padding: 12px 0;
  font-size: .88rem;
}

.breadcrumb-wrap a {
  color: var(--primary);
}

.breadcrumb-wrap .separator {
  margin: 0 8px;
  color: #9ca3af;
}

.breadcrumb-wrap .current {
  color: var(--text-muted);
}

/* ===== Section base ===== */
.section {
  padding: 80px 0;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: 1px;
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 14px;
}

.section-title {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 12px;
  line-height: 1.3;
}

.section-subtitle {
  color: var(--text-muted);
  font-size: 1rem;
  max-width: 720px;
  margin-bottom: 40px;
}

/* ===== Card base ===== */
.card-item {
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 30px 26px;
  height: 100%;
  transition: var(--transition);
}

.card-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-6px);
  border-color: rgba(26, 86, 219, .2);
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), #2563eb);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  margin-bottom: 18px;
  box-shadow: 0 4px 14px rgba(26, 86, 219, .25);
}

.card-icon.accent {
  background: linear-gradient(135deg, var(--accent), #fbbf24);
  box-shadow: 0 4px 14px rgba(245, 158, 11, .3);
}

.card-item h3 {
  font-size: 1.12rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.card-item p {
  color: var(--text-muted);
  font-size: .92rem;
  margin: 0;
}

/* ===== Steps / Timeline ===== */
.steps-section {
  background: var(--dark-bg);
  position: relative;
  overflow: hidden;
}

.steps-section .section-title {
  color: #fff;
}

.steps-section .section-subtitle {
  color: rgba(255, 255, 255, .65);
}

.step-card {
  text-align: center;
  padding: 32px 20px;
  background: var(--dark-card);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius-lg);
  height: 100%;
  position: relative;
  transition: var(--transition);
}

.step-card:hover {
  border-color: rgba(26, 86, 219, .5);
  transform: translateY(-6px);
}

.step-number {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), #2563eb);
  color: #fff;
  font-weight: 800;
  font-size: 1.3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 18px;
  box-shadow: 0 6px 20px rgba(26, 86, 219, .4);
}

.step-card h3 {
  color: #fff;
  font-size: 1.08rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.step-card p {
  color: rgba(255, 255, 255, .6);
  font-size: .9rem;
  margin: 0;
}

/* ===== Compare panel ===== */
.compare-section {
  background: #fff;
}

.compare-card {
  background: #f8fafc;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px;
  height: 100%;
  position: relative;
  transition: var(--transition);
}

.compare-card:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(26, 86, 219, .25);
}

.compare-card.recommended {
  border: 2px solid var(--primary);
  background: linear-gradient(170deg, rgba(26, 86, 219, .04), #fff);
}

.compare-badge {
  position: absolute;
  top: -12px;
  right: 20px;
  background: var(--primary);
  color: #fff;
  font-size: .72rem;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 999px;
  box-shadow: 0 4px 10px rgba(26, 86, 219, .3);
}

.compare-card i {
  font-size: 1.6rem;
  color: var(--primary);
  margin-bottom: 14px;
}

.compare-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.compare-card .desc {
  color: var(--text-muted);
  font-size: .9rem;
  margin-bottom: 16px;
}

.compare-meta {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.compare-meta span {
  font-size: .88rem;
  color: #4b5563;
  display: flex;
  align-items: center;
  gap: 7px;
}

.compare-meta span i {
  color: #10b981;
  font-size: .8rem;
  margin: 0;
}

/* ===== Problem list ===== */
.problem-section {
  background: var(--body-bg);
}

.problem-card {
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  gap: 16px;
  transition: var(--transition);
  height: 100%;
}

.problem-card:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(26, 86, 219, .2);
}

.problem-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: #fef3c7;
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

.problem-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.problem-card p {
  font-size: .88rem;
  color: var(--text-muted);
  margin: 0;
}

.tag-solution {
  display: inline-block;
  background: #ecfdf5;
  color: #059669;
  font-size: .75rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 999px;
  margin-top: 10px;
}

/* ===== News list ===== */
.news-section {
  background: #fff;
}

.news-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--border-color);
  height: 100%;
  transition: var(--transition);
}

.news-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-6px);
}

.news-thumb {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/10;
}

.news-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}

.news-card:hover .news-thumb img {
  transform: scale(1.06);
}

.news-thumb .news-cat {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(15, 23, 42, .75);
  backdrop-filter: blur(6px);
  color: #fff;
  font-size: .72rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 999px;
}

.news-body {
  padding: 20px 22px 24px;
}

.news-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: .78rem;
  color: #9ca3af;
  margin-bottom: 8px;
}

.news-meta i {
  margin-right: 4px;
}

.news-body h3 {
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 8px;
  color: var(--text-main);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-body p {
  font-size: .88rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-link {
  font-size: .85rem;
  font-weight: 700;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.news-link:hover {
  color: var(--primary-dark);
  gap: 10px;
}

/* ===== FAQ ===== */
.faq-section {
  background: var(--body-bg);
}

.accordion-custom {
  border-radius: var(--radius-md);
  overflow: hidden;
}

.accordion-custom .accordion-item {
  border: 1px solid var(--border-color);
  border-radius: 0 !important;
  background: #fff;
  margin-bottom: 10px;
  border-radius: var(--radius-md) !important;
  overflow: hidden;
}

.accordion-custom .accordion-button {
  font-weight: 700;
  font-size: .96rem;
  padding: 18px 22px;
  background: #fff;
  border: none;
  color: var(--text-main);
  box-shadow: none;
}

.accordion-custom .accordion-button:focus {
  box-shadow: 0 0 0 3px rgba(26, 86, 219, .1);
}

.accordion-custom .accordion-button:not(.collapsed) {
  background: var(--primary-light);
  color: var(--primary-dark);
}

.accordion-custom .accordion-body {
  padding: 18px 22px;
  color: var(--text-muted);
  font-size: .92rem;
}

/* ===== CTA ===== */
.cta-section {
  background: linear-gradient(135deg, var(--primary-dark), #1e3a8a, #172554);
  padding: 70px 0;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: rgba(245, 158, 11, .12);
  top: -80px;
  right: -60px;
}

.cta-section::after {
  content: "";
  position: absolute;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .05);
  bottom: -50px;
  left: 30px;
}

.cta-section .container {
  position: relative;
  z-index: 2;
}

.cta-title {
  color: #fff;
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 10px;
}

.cta-text {
  color: rgba(255, 255, 255, .75);
  font-size: 1rem;
  max-width: 600px;
  margin-bottom: 28px;
}

.cta-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn-cta-light {
  background: #fff;
  color: var(--primary-dark) !important;
  font-weight: 800;
  border-radius: 999px;
  padding: 13px 30px;
  font-size: .95rem;
  box-shadow: 0 8px 24px rgba(0, 0, 0, .15);
}

.btn-cta-light:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, .2);
}

.btn-cta-outline {
  border: 1.5px solid rgba(255, 255, 255, .4);
  color: #fff !important;
  font-weight: 700;
  border-radius: 999px;
  padding: 13px 30px;
  font-size: .95rem;
}

.btn-cta-outline:hover {
  background: rgba(255, 255, 255, .1);
  border-color: #fff;
}

/* ===== Footer ===== */
.site-footer {
  background: #0b1220;
  color: rgba(255, 255, 255, .6);
  padding-top: 60px;
  font-size: .9rem;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: 14px;
}

.footer-brand-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), #2563eb);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .95rem;
}

.footer-desc {
  font-size: .88rem;
  line-height: 1.8;
  margin-bottom: 18px;
  max-width: 340px;
}

.footer-title {
  color: #fff;
  font-size: .95rem;
  font-weight: 700;
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 10px;
}

.footer-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 28px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

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

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

.footer-links a {
  color: rgba(255, 255, 255, .6);
  font-size: .88rem;
  transition: var(--transition);
}

.footer-links a i {
  font-size: .7rem;
  margin-right: 6px;
  color: var(--primary);
}

.footer-links a:hover {
  color: #fff;
  padding-left: 4px;
}

.footer-contact {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 12px;
  font-size: .88rem;
}

.footer-contact i {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: rgba(255, 255, 255, .08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
  font-size: .8rem;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .08);
  padding: 20px 0;
  margin-top: 40px;
  font-size: .82rem;
  color: rgba(255, 255, 255, .4);
}

.footer-bottom .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}

/* ===== Responsive ===== */
@media (max-width: 992px) {
  .navbar-collapse {
    padding-top: 16px;
  }

  .nav-right {
    margin-top: 14px;
    flex-direction: column;
    align-items: stretch;
  }

  .search-box {
    width: 100%;
  }

  .navbar-nav .nav-link {
    padding: 10px 16px !important;
    border-radius: 10px;
  }

  .page-hero {
    padding: 80px 0 70px;
  }

  .page-hero h1 {
    font-size: 2.2rem;
  }

  .section {
    padding: 60px 0;
  }

  .footer-bottom .container {
    flex-direction: column;
    text-align: center;
    justify-content: center;
  }
}

@media (max-width: 768px) {
  body {
    font-size: 15px;
  }

  .page-hero h1 {
    font-size: 1.85rem;
  }

  .page-hero .lead {
    font-size: .95rem;
  }

  .section-title {
    font-size: 1.6rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-actions .btn {
    text-align: center;
  }

  .cta-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .cta-actions .btn {
    text-align: center;
  }

  .footer-contact {
    font-size: .82rem;
  }
}

@media (max-width: 520px) {
  .page-hero {
    padding: 60px 0 54px;
  }

  .page-hero h1 {
    font-size: 1.5rem;
  }

  .hero-badge {
    font-size: .72rem;
    padding: 6px 14px;
  }

  .section-title {
    font-size: 1.35rem;
  }

  .navbar-brand .brand-text {
    font-size: 1rem;
  }

  .brand-icon {
    width: 34px;
    height: 34px;
    font-size: .85rem;
  }

  .step-card {
    padding: 26px 16px;
  }
}

/* roulang page: article */
:root {
            --primary: #1a3a5c;
            --primary-dark: #0f2b4b;
            --primary-light: #2d5a8e;
            --accent: #d4a853;
            --accent-dark: #b8913a;
            --bg-body: #f5f7fa;
            --bg-white: #ffffff;
            --text-main: #1a1a2e;
            --text-body: #3a4256;
            --text-muted: #7a8395;
            --border: #e2e8f0;
            --radius: 14px;
            --radius-sm: 8px;
            --shadow: 0 4px 20px rgba(26, 58, 92, .08);
            --shadow-lg: 0 12px 40px rgba(26, 58, 92, .12);
            --transition: all .25s ease;
        }
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg-body);
            color: var(--text-body);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a { text-decoration: none; color: var(--primary-light); transition: var(--transition); }
        a:hover { color: var(--accent-dark); }
        img { max-width: 100%; height: auto; }
        .container { max-width: 1200px; }
        .section-spacing { padding: 5rem 0; }

        .btn-accent {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--accent);
            color: #1a1a2e;
            border: none;
            border-radius: 10px;
            padding: 11px 24px;
            font-weight: 600;
            font-size: .95rem;
            transition: var(--transition);
            box-shadow: 0 4px 16px rgba(212, 168, 83, .25);
        }
        .btn-accent:hover { background: var(--accent-dark); color: #1a1a2e; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(212, 168, 83, .35); }
        .btn-outline-accent {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: 1.5px solid var(--accent);
            color: var(--accent);
            background: transparent;
            border-radius: 10px;
            padding: 10px 22px;
            font-weight: 600;
            font-size: .95rem;
            transition: var(--transition);
        }
        .btn-outline-accent:hover { background: rgba(212, 168, 83, .1); color: var(--accent-dark); transform: translateY(-2px); }

        /* ===== Header / Nav ===== */
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 16px rgba(26, 58, 92, .06);
            position: sticky;
            top: 0;
            z-index: 1030;
        }
        .site-header .navbar { padding: 14px 0; }
        .navbar-brand { display: flex; align-items: center; gap: 10px; }
        .brand-icon {
            width: 40px; height: 40px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: var(--accent);
            display: flex; align-items: center; justify-content: center;
            font-size: 1.05rem;
            box-shadow: 0 3px 10px rgba(26, 58, 92, .25);
        }
        .brand-text { font-size: 1.1rem; font-weight: 800; color: var(--primary-dark); letter-spacing: .5px; }
        .site-header .nav-link {
            font-weight: 500;
            color: var(--text-body);
            padding: 10px 16px !important;
            border-radius: 8px;
            margin: 0 2px;
            font-size: .95rem;
        }
        .site-header .nav-link:hover { color: var(--primary); background: rgba(26, 58, 92, .05); }
        .site-header .nav-link.active { color: var(--primary); font-weight: 600; background: rgba(26, 58, 92, .08); }
        .navbar-toggler { border: none; padding: 6px 10px; border-radius: 8px; }
        .navbar-toggler:focus { box-shadow: 0 0 0 3px rgba(26, 58, 92, .15); }
        .nav-right { display: flex; align-items: center; gap: 12px; }
        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-body);
            border: 1px solid var(--border);
            border-radius: 24px;
            padding: 4px 4px 4px 16px;
            transition: var(--transition);
            width: 220px;
        }
        .search-box:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(212, 168, 83, .15); background: #fff; }
        .search-box input {
            border: none;
            outline: none;
            background: transparent;
            font-size: .85rem;
            width: 100%;
            color: var(--text-main);
        }
        .search-box button {
            border: none;
            background: var(--primary);
            color: #fff;
            width: 32px; height: 32px;
            border-radius: 50%;
            font-size: .8rem;
            display: flex; align-items: center; justify-content: center;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .search-box button:hover { background: var(--primary-light); }
        .btn-nav-cta {
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: #1a1a2e;
            font-weight: 600;
            font-size: .9rem;
            border-radius: 10px;
            padding: 9px 20px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
            box-shadow: 0 3px 12px rgba(212, 168, 83, .3);
            transition: var(--transition);
        }
        .btn-nav-cta:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(212, 168, 83, .4); color: #1a1a2e; }

        /* ===== Article Hero ===== */
        .article-hero {
            padding: 4.5rem 0;
            background-size: cover;
            background-position: center;
            position: relative;
            color: #fff;
            border-bottom: 3px solid var(--accent);
        }
        .article-hero .breadcrumb-inline {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: .88rem;
            color: rgba(255, 255, 255, .7);
            margin-bottom: 2rem;
        }
        .article-hero .breadcrumb-inline a { color: rgba(255, 255, 255, .8); }
        .article-hero .breadcrumb-inline a:hover { color: var(--accent); }
        .article-hero .breadcrumb-inline .sep { color: rgba(255, 255, 255, .4); }
        .article-hero .breadcrumb-inline .current { color: rgba(255, 255, 255, .9); font-weight: 500; max-width: 280px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
        .hero-category-badge {
            display: inline-block;
            background: rgba(212, 168, 83, .9);
            color: #1a1a2e;
            font-size: .8rem;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 14px;
            letter-spacing: 1px;
        }
        .article-hero h1 {
            font-size: 2.2rem;
            font-weight: 800;
            line-height: 1.35;
            max-width: 860px;
            margin-bottom: 1.2rem;
            text-shadow: 0 2px 16px rgba(0, 0, 0, .3);
        }
        .hero-meta { display: flex; flex-wrap: wrap; gap: 18px; font-size: .9rem; color: rgba(255, 255, 255, .75); }
        .hero-meta span { display: inline-flex; align-items: center; gap: 6px; }

        /* ===== Article Main ===== */
        .article-main { padding: 3rem 0 4rem; }
        .article-content-wrapper {
            background: var(--bg-white);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 2.5rem;
            border: 1px solid var(--border);
        }
        .article-content { font-size: 1rem; }
        .article-content h2 {
            font-size: 1.45rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin: 1.8rem 0 1rem;
            border-left: 4px solid var(--accent);
            padding-left: 1rem;
        }
        .article-content h3 { font-size: 1.2rem; font-weight: 700; color: var(--primary); margin: 1.5rem 0 .8rem; }
        .article-content p { margin-bottom: 1.1rem; line-height: 1.85; }
        .article-content ul, .article-content ol { margin-bottom: 1.2rem; padding-left: 1.4rem; }
        .article-content li { margin-bottom: .5rem; }
        .article-content blockquote {
            border-left: 4px solid var(--accent);
            background: #fef9ef;
            padding: 1rem 1.2rem;
            border-radius: 0 12px 12px 0;
            margin: 1.5rem 0;
            color: var(--text-body);
        }
        .article-content img { border-radius: var(--radius-sm); margin: 1.2rem 0; }
        .article-content table { width: 100%; border-collapse: collapse; margin: 1.2rem 0; }
        .article-content table th, .article-content table td { border: 1px solid var(--border); padding: 10px 14px; }
        .article-content table th { background: var(--bg-body); font-weight: 600; color: var(--primary-dark); }
        .article-content code { background: var(--bg-body); padding: 2px 8px; border-radius: 4px; font-size: .9em; color: var(--primary); }
        .article-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 2rem; padding-top: 1.5rem; border-top: 1px solid var(--border); }
        .article-tags .tag {
            background: var(--bg-body);
            color: var(--text-muted);
            font-size: .82rem;
            padding: 5px 14px;
            border-radius: 20px;
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .article-tags .tag:hover { background: rgba(212, 168, 83, .15); color: var(--accent-dark); border-color: var(--accent); }
        .article-share { display: flex; align-items: center; gap: 10px; margin-top: 1.5rem; padding-top: 1.5rem; border-top: 1px solid var(--border); }
        .article-share .share-label { font-size: .9rem; color: var(--text-muted); font-weight: 500; }
        .article-share .share-btn {
            width: 36px; height: 36px;
            border-radius: 50%;
            border: 1px solid var(--border);
            background: var(--bg-white);
            color: var(--text-muted);
            display: flex; align-items: center; justify-content: center;
            font-size: .85rem;
            transition: var(--transition);
        }
        .article-share .share-btn:hover { background: var(--primary); color: #fff; border-color: var(--primary); transform: translateY(-2px); }

        /* Article Not Found */
        .article-not-found { text-align: center; padding: 3rem 1rem; }
        .article-not-found .nf-icon { font-size: 3.5rem; color: var(--accent); margin-bottom: 1rem; }
        .article-not-found h2 { font-size: 1.5rem; color: var(--primary-dark); margin-bottom: .8rem; }
        .article-not-found p { color: var(--text-muted); max-width: 420px; margin: 0 auto 1.5rem; }

        /* ===== Sidebar ===== */
        .sidebar-widget {
            background: var(--bg-white);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            padding: 1.5rem;
            margin-bottom: 1.8rem;
        }
        .sidebar-widget-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 1.2rem;
            padding-bottom: .8rem;
            border-bottom: 2px solid var(--accent);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-widget-title i { color: var(--accent); }
        .sidebar-cat-list { list-style: none; padding: 0; margin: 0; }
        .sidebar-cat-list li { margin-bottom: 6px; }
        .sidebar-cat-list a {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 11px 16px;
            border-radius: 10px;
            background: var(--bg-body);
            color: var(--text-body);
            font-size: .92rem;
            font-weight: 500;
            transition: var(--transition);
        }
        .sidebar-cat-list a:hover { background: rgba(212, 168, 83, .15); color: var(--accent-dark); transform: translateX(4px); }
        .sidebar-cat-list a i { font-size: .8rem; color: var(--text-muted); }
        .sidebar-cat-list a.active { background: var(--primary); color: #fff; }
        .sidebar-cat-list a.active i { color: rgba(255, 255, 255, .7); }
        .security-tip { display: flex; gap: 12px; background: #fef9ef; border: 1px solid #f0e0c0; border-radius: 12px; padding: 14px; margin-bottom: 10px; }
        .security-tip .tip-icon { color: var(--accent); font-size: 1.3rem; flex-shrink: 0; margin-top: 2px; }
        .security-tip .tip-text h5 { font-size: .95rem; font-weight: 600; color: var(--primary-dark); margin-bottom: 4px; }
        .security-tip .tip-text p { font-size: .85rem; color: var(--text-muted); line-height: 1.5; margin: 0; }
        .sidebar-contact { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); border-radius: var(--radius); padding: 1.5rem; color: #fff; }
        .sidebar-contact h4 { font-size: 1.1rem; font-weight: 700; margin-bottom: .8rem; color: var(--accent); }
        .sidebar-contact p { font-size: .88rem; color: rgba(255, 255, 255, .8); margin-bottom: 1.2rem; }
        .sidebar-contact .contact-item { display: flex; align-items: center; gap: 10px; font-size: .88rem; color: rgba(255, 255, 255, .75); margin-bottom: 10px; }
        .sidebar-contact .contact-item i { color: var(--accent); }

        /* ===== Related Section ===== */
        .related-section { background: var(--bg-white); border-top: 1px solid var(--border); }
        .section-head { text-align: center; max-width: 580px; margin: 0 auto 2.5rem; }
        .section-tag {
            display: inline-block;
            background: rgba(212, 168, 83, .15);
            color: var(--accent-dark);
            font-size: .8rem;
            font-weight: 600;
            padding: 4px 16px;
            border-radius: 20px;
            letter-spacing: 2px;
            margin-bottom: 10px;
        }
        .section-head h2 { font-size: 1.8rem; font-weight: 800; color: var(--primary-dark); margin-bottom: .6rem; }
        .section-head p { color: var(--text-muted); font-size: .95rem; }
        .related-card {
            display: block;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
            box-shadow: 0 2px 10px rgba(26, 58, 92, .05);
        }
        .related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: rgba(212, 168, 83, .5); }
        .related-card .related-img { height: 170px; overflow: hidden; position: relative; }
        .related-card .related-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
        .related-card:hover .related-img img { transform: scale(1.05); }
        .related-card .related-img::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(15, 43, 75, .25), transparent 60%);
        }
        .related-card .related-body { padding: 1.2rem 1.2rem 1.4rem; }
        .related-tag {
            display: inline-block;
            background: rgba(212, 168, 83, .15);
            color: var(--accent-dark);
            font-size: .75rem;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: 16px;
            margin-bottom: 10px;
        }
        .related-card h3 { font-size: 1.05rem; font-weight: 700; color: var(--primary-dark); line-height: 1.5; margin-bottom: 8px; transition: var(--transition); }
        .related-card:hover h3 { color: var(--primary-light); }
        .related-card p { font-size: .85rem; color: var(--text-muted); line-height: 1.6; margin: 0; }

        /* ===== CTA Section ===== */
        .cta-section { padding: 4rem 0; background: var(--bg-body); }
        .cta-box {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary), #1e4a78);
            border-radius: 20px;
            padding: 3rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 2rem;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .cta-box::before {
            content: "";
            position: absolute;
            top: -40px; right: -40px;
            width: 200px; height: 200px;
            border-radius: 50%;
            background: rgba(212, 168, 83, .15);
        }
        .cta-box::after {
            content: "";
            position: absolute;
            bottom: -60px; left: 30%;
            width: 160px; height: 160px;
            border-radius: 50%;
            background: rgba(212, 168, 83, .1);
        }
        .cta-icon {
            width: 60px; height: 60px;
            border-radius: 16px;
            background: var(--accent);
            color: #1a1a2e;
            font-size: 1.4rem;
            display: flex; align-items: center; justify-content: center;
            flex-shrink: 0;
            box-shadow: 0 6px 20px rgba(212, 168, 83, .4);
        }
        .cta-text h2 { color: #fff; font-size: 1.5rem; font-weight: 700; margin-bottom: .4rem; }
        .cta-text p { color: rgba(255, 255, 255, .8); font-size: .95rem; margin: 0; }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, .75);
            padding: 4rem 0 0;
            font-size: .92rem;
        }
        .site-footer .footer-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 1rem; }
        .footer-brand-icon {
            width: 40px; height: 40px;
            border-radius: 10px;
            background: var(--accent);
            color: #1a1a2e;
            font-size: 1rem;
            display: flex; align-items: center; justify-content: center;
        }
        .site-footer .footer-logo span:last-child { font-size: 1.1rem; font-weight: 700; color: #fff; }
        .footer-desc { color: rgba(255, 255, 255, .6); font-size: .88rem; margin-bottom: 1.4rem; max-width: 320px; }
        .footer-title {
            color: #fff;
            font-size: .95rem;
            font-weight: 700;
            margin-bottom: 1.2rem;
            position: relative;
            padding-bottom: .6rem;
        }
        .footer-title::after {
            content: "";
            position: absolute;
            bottom: 0; left: 0;
            width: 30px; height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .footer-links { list-style: none; padding: 0; margin: 0; }
        .footer-links li { margin-bottom: 10px; }
        .footer-links a { color: rgba(255, 255, 255, .6); font-size: .9rem; display: inline-flex; align-items: center; gap: 6px; }
        .footer-links a i { font-size: .7rem; color: var(--accent); }
        .footer-links a:hover { color: var(--accent); padding-left: 4px; }
        .footer-contact { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; color: rgba(255, 255, 255, .65); font-size: .88rem; }
        .footer-contact i { color: var(--accent); width: 18px; text-align: center; }
        .footer-bottom {
            margin-top: 3rem;
            border-top: 1px solid rgba(255, 255, 255, .12);
            padding: 1.4rem 0;
            text-align: center;
            color: rgba(255, 255, 255, .4);
            font-size: .85rem;
        }
        .footer-bottom p { margin: 0; }

        /* ===== Responsive ===== */
        @media (max-width: 991px) {
            .section-spacing { padding: 3.5rem 0; }
            .article-hero h1 { font-size: 1.8rem; }
            .article-content-wrapper { padding: 1.8rem; }
            .nav-right { margin-top: 12px; }
            .search-box { width: 100%; }
            .cta-box { padding: 2rem; }
            .cta-box .btn-accent { width: 100%; }
        }
        @media (max-width: 767px) {
            .section-spacing { padding: 2.8rem 0; }
            .article-hero { padding: 3rem 0; }
            .article-hero h1 { font-size: 1.5rem; }
            .article-main { padding: 2rem 0; }
            .article-content-wrapper { padding: 1.2rem; }
            .hero-meta { gap: 12px; font-size: .82rem; }
            .sidebar-widget { padding: 1.2rem; }
            .cta-box { flex-direction: column; text-align: center; padding: 2rem 1.5rem; }
            .cta-icon { margin: 0 auto; }
            .site-footer { padding-top: 3rem; }
        }
        @media (max-width: 520px) {
            .article-hero h1 { font-size: 1.3rem; }
            .brand-text { font-size: .95rem; }
            .article-content-wrapper { padding: 1rem; }
            .article-tags .tag { font-size: .78rem; padding: 4px 10px; }
            .related-card .related-img { height: 150px; }
            .cta-box { padding: 1.5rem 1rem; }
            .cta-text h2 { font-size: 1.2rem; }
        }

/* roulang page: category2 */
/* ========== 设计变量 ========== */
        :root {
            --primary: #0d2b52;
            --primary-dark: #081c36;
            --primary-light: #1a3a6b;
            --accent: #00b899;
            --accent-dark: #00917c;
            --gold: #f0b35a;
            --bg-light: #f5f8fb;
            --bg-white: #ffffff;
            --text-main: #1e2a3a;
            --text-muted: #5a6b7d;
            --text-light: #8a98a8;
            --border-color: #e2e9f0;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 10px;
            --shadow-main: 0 8px 30px rgba(13, 43, 82, .08);
            --shadow-hover: 0 12px 36px rgba(13, 43, 82, .14);
            --transition-base: all .3s ease;
        }

        /* ========== 基础 Reset ========== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            line-height: 1.75;
            color: var(--text-main);
            background: var(--bg-white);
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition-base);
        }

        a:hover {
            color: var(--accent);
        }

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

        button,
        input {
            font-family: inherit;
        }

        ::selection {
            background: rgba(0, 184, 153, .25);
        }

        :focus-visible {
            outline: 3px solid rgba(0, 184, 153, .4);
            outline-offset: 2px;
        }

        /* ========== 容器与通用 ========== */
        .container {
            max-width: 1200px;
            padding: 0 20px;
        }

        .section {
            padding: 90px 0;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(0, 184, 153, .1);
            color: var(--accent-dark);
            font-size: .85rem;
            font-weight: 600;
            padding: 6px 18px;
            border-radius: 50px;
            margin-bottom: 16px;
            letter-spacing: .5px;
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .section-subtitle {
            color: var(--text-muted);
            font-size: 1.05rem;
            max-width: 620px;
            margin: 0 auto 40px;
        }

        .text-center .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== 导航 header ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 999;
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(226, 233, 240, .8);
            box-shadow: 0 2px 12px rgba(13, 43, 82, .05);
        }

        .site-header .navbar {
            padding: 0;
            min-height: 72px;
        }

        .site-header .navbar-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--primary);
        }

        .site-header .navbar-brand:hover {
            color: var(--primary);
        }

        .brand-icon,
        .footer-brand-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
            flex-shrink: 0;
            box-shadow: 0 4px 14px rgba(13, 43, 82, .25);
        }

        .nav-center .nav-item {
            padding: 0 4px;
        }

        .site-header .nav-link {
            font-size: .95rem;
            font-weight: 500;
            color: var(--text-main);
            padding: 8px 16px !important;
            border-radius: 8px;
            position: relative;
        }

        .site-header .nav-link:hover {
            color: var(--accent-dark);
            background: rgba(0, 184, 153, .06);
        }

        .site-header .nav-link.active {
            color: var(--accent-dark);
            font-weight: 600;
        }

        .site-header .nav-link.active::after {
            content: "";
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 22px;
            height: 3px;
            border-radius: 3px;
            background: var(--accent);
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .search-box {
            position: relative;
            display: flex;
            align-items: center;
        }

        .search-box input {
            width: 180px;
            height: 38px;
            border: 1px solid var(--border-color);
            border-radius: 50px;
            padding: 0 42px 0 18px;
            font-size: .85rem;
            background: var(--bg-light);
            transition: var(--transition-base);
        }

        .search-box input:focus {
            outline: none;
            border-color: var(--accent);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(0, 184, 153, .15);
        }

        .search-box button {
            position: absolute;
            right: 4px;
            width: 30px;
            height: 30px;
            border: none;
            background: transparent;
            color: var(--text-muted);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition-base);
        }

        .search-box button:hover {
            color: var(--accent);
            background: rgba(0, 184, 153, .1);
        }

        .btn-nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            font-size: .9rem;
            font-weight: 600;
            padding: 9px 22px;
            border-radius: 50px;
            box-shadow: 0 4px 14px rgba(13, 43, 82, .2);
            transition: var(--transition-base);
        }

        .btn-nav-cta:hover {
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(13, 43, 82, .3);
        }

        .navbar-toggler {
            border: none;
            padding: 8px 10px;
            border-radius: 8px;
        }

        .navbar-toggler:focus {
            box-shadow: none;
        }

        .navbar-toggler-icon {
            width: 22px;
            height: 22px;
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%230d2b52' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* ========== 内页 Hero ========== */
        .page-hero {
            position: relative;
            background: linear-gradient(135deg, rgba(13, 43, 82, .92), rgba(0, 164, 152, .78)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            padding: 100px 0 90px;
            color: #fff;
            overflow: hidden;
        }

        .page-hero::after {
            content: "";
            position: absolute;
            right: -80px;
            top: -60px;
            width: 380px;
            height: 380px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .05);
        }

        .page-hero .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .14);
            border: 1px solid rgba(255, 255, 255, .2);
            padding: 6px 18px;
            border-radius: 50px;
            font-size: .85rem;
            font-weight: 600;
            margin-bottom: 20px;
            backdrop-filter: blur(4px);
        }

        .page-hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 18px;
            letter-spacing: 1px;
        }

        .page-hero .hero-sub {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, .9);
            max-width: 560px;
            margin-bottom: 32px;
        }

        .hero-btns {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-hero {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 30px;
            border-radius: 50px;
            font-weight: 600;
            font-size: .95rem;
            transition: var(--transition-base);
        }

        .btn-hero-primary {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 6px 20px rgba(0, 184, 153, .35);
        }

        .btn-hero-primary:hover {
            background: var(--accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(0, 184, 153, .45);
        }

        .btn-hero-outline {
            background: transparent;
            border: 1.5px solid rgba(255, 255, 255, .6);
            color: #fff;
        }

        .btn-hero-outline:hover {
            background: rgba(255, 255, 255, .12);
            color: #fff;
            border-color: #fff;
        }

        .security-panel {
            background: rgba(255, 255, 255, .1);
            border: 1px solid rgba(255, 255, 255, .2);
            border-radius: 20px;
            padding: 28px 30px;
            backdrop-filter: blur(10px);
            margin-top: 10px;
        }

        .security-panel .panel-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 20px;
            border-bottom: 1px solid rgba(255, 255, 255, .2);
            padding-bottom: 14px;
        }

        .security-panel .panel-head span {
            font-weight: 600;
            font-size: .95rem;
        }

        .security-panel .panel-status {
            background: rgba(0, 184, 153, .3);
            color: #fff;
            font-size: .78rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
        }

        .security-panel .panel-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 0;
            font-size: .88rem;
            color: rgba(255, 255, 255, .9);
        }

        .security-panel .panel-item .value {
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .security-panel .panel-item .value i {
            color: var(--accent);
            font-size: .8rem;
        }

        /* ========== 安全矩阵卡片 ========== */
        .security-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .security-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 30px 24px;
            transition: var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .security-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), var(--gold));
            opacity: 0;
            transition: var(--transition-base);
        }

        .security-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(0, 184, 153, .3);
        }

        .security-card:hover::before {
            opacity: 1;
        }

        .security-card .icon-wrap {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            margin-bottom: 18px;
        }

        .security-card:nth-child(1) .icon-wrap {
            background: rgba(0, 184, 153, .12);
            color: var(--accent-dark);
        }

        .security-card:nth-child(2) .icon-wrap {
            background: rgba(240, 179, 90, .15);
            color: #d4942a;
        }

        .security-card:nth-child(3) .icon-wrap {
            background: rgba(13, 43, 82, .1);
            color: var(--primary);
        }

        .security-card:nth-child(4) .icon-wrap {
            background: rgba(220, 90, 90, .1);
            color: #d05454;
        }

        .security-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .security-card p {
            font-size: .88rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ========== 流程 ========== */
        .process-section {
            background: var(--bg-light);
        }

        .process-step {
            position: relative;
            padding: 36px 24px;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            text-align: center;
            transition: var(--transition-base);
            height: 100%;
        }

        .process-step:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }

        .process-num {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            font-weight: 700;
            font-size: .95rem;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
            box-shadow: 0 4px 14px rgba(13, 43, 82, .25);
        }

        .process-step h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .process-step p {
            font-size: .85rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        .process-step::after {
            content: "\f054";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            position: absolute;
            right: -17px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--accent);
            font-size: .9rem;
            z-index: 2;
            background: var(--bg-light);
            width: 34px;
            height: 34px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .process-step:last-child::after {
            display: none;
        }

        /* ========== 图文安全指南 ========== */
        .guide-wrap {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-main);
            display: flex;
        }

        .guide-img {
            flex: 0 0 45%;
            position: relative;
            min-height: 380px;
        }

        .guide-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
        }

        .guide-content {
            flex: 1;
            padding: 48px 44px;
        }

        .guide-content h2 {
            font-size: 1.7rem;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .guide-content p.lead-text {
            color: var(--text-muted);
            margin-bottom: 24px;
            font-size: .95rem;
        }

        .guide-list {
            list-style: none;
            padding: 0;
            margin: 0 0 24px;
        }

        .guide-list li {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            padding: 10px 0;
            font-size: .92rem;
            border-bottom: 1px dashed var(--border-color);
        }

        .guide-list li:last-child {
            border-bottom: none;
        }

        .guide-list li i {
            color: var(--accent);
            margin-top: 4px;
            font-size: .85rem;
            flex-shrink: 0;
        }

        .guide-list li strong {
            font-weight: 600;
            display: block;
        }

        .guide-list li span {
            color: var(--text-muted);
            font-size: .85rem;
            display: block;
            margin-top: 2px;
        }

        .guide-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(0, 184, 153, .1);
            color: var(--accent-dark);
            border-radius: 50px;
            padding: 6px 16px;
            font-size: .82rem;
            font-weight: 600;
            margin-top: 8px;
        }

        /* ========== 数据指标 ========== */
        .data-section {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .data-section::before {
            content: "";
            position: absolute;
            right: -60px;
            top: -60px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .04);
        }

        .data-item {
            text-align: center;
            padding: 30px 20px;
        }

        .data-item .number {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            background: linear-gradient(135deg, var(--gold), #ffd58a);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 4px;
        }

        .data-item .label {
            color: rgba(255, 255, 255, .8);
            font-size: .9rem;
        }

        /* ========== FAQ ========== */
        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition-base);
        }

        .faq-item:hover {
            border-color: rgba(0, 184, 153, .3);
            box-shadow: var(--shadow-main);
        }

        .faq-item summary {
            list-style: none;
            cursor: pointer;
            padding: 20px 26px;
            display: flex;
            align-items: center;
            gap: 14px;
            font-weight: 600;
            font-size: .98rem;
            position: relative;
            transition: var(--transition-base);
        }

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

        .faq-item summary:hover {
            color: var(--accent-dark);
        }

        .faq-item summary .faq-icon {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: rgba(0, 184, 153, .1);
            color: var(--accent-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: .75rem;
            flex-shrink: 0;
            transition: var(--transition-base);
        }

        .faq-item[open] summary .faq-icon {
            transform: rotate(45deg);
            background: var(--accent);
            color: #fff;
        }

        .faq-item .faq-answer {
            padding: 0 26px 20px 70px;
            color: var(--text-muted);
            font-size: .9rem;
            line-height: 1.8;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: var(--bg-light);
        }

        .cta-panel {
            background: linear-gradient(135deg, var(--primary), #143a6b);
            border-radius: 24px;
            padding: 60px 50px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-panel h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 14px;
        }

        .cta-panel p {
            color: rgba(255, 255, 255, .85);
            margin-bottom: 28px;
            max-width: 560px;
        }

        .cta-panel .cta-btns {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-cta-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: #fff;
            padding: 13px 32px;
            border-radius: 50px;
            font-weight: 600;
            box-shadow: 0 6px 20px rgba(0, 184, 153, .35);
            transition: var(--transition-base);
        }

        .btn-cta-light:hover {
            color: #fff;
            background: var(--accent-dark);
            transform: translateY(-2px);
        }

        .btn-cta-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: 1.5px solid rgba(255, 255, 255, .5);
            color: #fff;
            padding: 12px 30px;
            border-radius: 50px;
            font-weight: 600;
            transition: var(--transition-base);
        }

        .btn-cta-outline:hover {
            background: rgba(255, 255, 255, .1);
            color: #fff;
            border-color: #fff;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, .7);
            padding: 70px 0 0;
            font-size: .9rem;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            color: #fff;
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 18px;
        }

        .footer-desc {
            color: rgba(255, 255, 255, .55);
            line-height: 1.8;
            margin-bottom: 20px;
            font-size: .88rem;
            max-width: 360px;
        }

        .footer-title {
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 18px;
            letter-spacing: .5px;
        }

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

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

        .footer-links a {
            color: rgba(255, 255, 255, .6);
            font-size: .88rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition-base);
        }

        .footer-links a i {
            font-size: .7rem;
            color: rgba(255, 255, 255, .3);
            transition: var(--transition-base);
        }

        .footer-links a:hover {
            color: var(--accent);
        }

        .footer-links a:hover i {
            color: var(--accent);
            transform: translateX(3px);
        }

        .footer-contact {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255, 255, 255, .6);
            font-size: .88rem;
            margin-bottom: 12px;
        }

        .footer-contact i {
            color: var(--accent);
            width: 16px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding: 22px 0;
            margin-top: 50px;
            text-align: center;
            color: rgba(255, 255, 255, .4);
            font-size: .82rem;
        }

        .footer-bottom span {
            margin: 0 8px;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .security-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .guide-wrap {
                flex-direction: column;
            }

            .guide-img {
                flex: 0 0 260px;
                min-height: 260px;
                position: relative;
            }

            .guide-img img {
                position: static;
                height: 260px;
            }

            .section {
                padding: 70px 0;
            }
        }

        @media (max-width: 768px) {
            .site-header .navbar-collapse {
                background: #fff;
                padding: 16px;
                border-radius: 14px;
                box-shadow: 0 10px 30px rgba(13, 43, 82, .1);
                margin-top: 8px;
            }

            .nav-center .nav-item {
                padding: 4px 0;
            }

            .nav-right {
                flex-direction: column;
                align-items: stretch;
                margin-top: 12px;
            }

            .search-box {
                width: 100%;
            }

            .search-box input {
                width: 100%;
            }

            .btn-nav-cta {
                justify-content: center;
            }

            .page-hero {
                padding: 70px 0;
            }

            .page-hero h1 {
                font-size: 2rem;
            }

            .section-title {
                font-size: 1.7rem;
            }

            .security-panel {
                margin-top: 30px;
            }

            .guide-content {
                padding: 30px 24px;
            }

            .cta-panel {
                padding: 40px 30px;
            }

            .data-item .number {
                font-size: 2rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .section {
                padding: 55px 0;
            }

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

            .page-hero h1 {
                font-size: 1.65rem;
            }

            .hero-btns {
                flex-direction: column;
            }

            .btn-hero {
                justify-content: center;
            }

            .process-step::after {
                display: none;
            }

            .data-item {
                padding: 20px 10px;
            }

            .cta-panel h2 {
                font-size: 1.5rem;
            }

            .footer-links {
                margin-bottom: 24px;
            }
        }

/* roulang page: category3 */
/* ===== 设计变量 ===== */
    :root {
      --primary: #0b1b33;
      --primary-light: #143157;
      --accent: #0ea5a4;
      --accent-dark: #0c8f8e;
      --accent-light: #e6f7f7;
      --bg: #f5f8fc;
      --card-bg: #ffffff;
      --text: #1a2b3c;
      --text-weak: #6b7a8d;
      --border: #e3ebf3;
      --radius: 16px;
      --radius-sm: 10px;
      --shadow: 0 8px 30px rgba(11, 27, 51, 0.08);
      --shadow-hover: 0 16px 40px rgba(11, 27, 51, 0.14);
      --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.35, 1);
    }

    /* ===== 基础重置 ===== */
    *,
    *::before,
    *::after {
      box-sizing: border-box;
    }
    html,
    body {
      margin: 0;
      padding: 0;
      scroll-behavior: smooth;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
      font-size: 1rem;
      line-height: 1.7;
      color: var(--text);
      background: var(--bg);
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: var(--accent);
      text-decoration: none;
      transition: var(--transition);
    }
    a:hover {
      color: var(--accent-dark);
      text-decoration: none;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    button,
    input,
    select,
    textarea {
      font-family: inherit;
      font-size: inherit;
    }
    :focus-visible {
      outline: 3px solid rgba(14, 165, 164, 0.45);
      outline-offset: 2px;
      border-radius: 4px;
    }

    /* ===== 容器 ===== */
    .container {
      max-width: 1200px;
      padding: 0 24px;
    }

    /* ===== 通用标题 ===== */
    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: var(--accent-light);
      color: var(--accent-dark);
      font-size: 0.8rem;
      font-weight: 600;
      padding: 5px 16px;
      border-radius: 30px;
      letter-spacing: 0.5px;
      margin-bottom: 14px;
    }
    .section-title {
      font-size: 2.25rem;
      font-weight: 700;
      color: var(--primary);
      line-height: 1.3;
      letter-spacing: -0.5px;
    }
    .section-desc {
      font-size: 1.05rem;
      color: var(--text-weak);
      max-width: 640px;
    }

    /* ===== 导航栏 ===== */
    .site-header {
      background: #ffffff;
      box-shadow: 0 2px 20px rgba(11, 27, 51, 0.06);
      border-bottom: 1px solid var(--border);
      position: sticky;
      top: 0;
      z-index: 1000;
    }
    .site-header .navbar {
      padding: 12px 0;
    }
    .navbar-brand {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 700;
      color: var(--primary);
      font-size: 1.15rem;
      letter-spacing: -0.3px;
    }
    .navbar-brand:hover {
      color: var(--primary);
    }
    .brand-icon {
      width: 38px;
      height: 38px;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      color: #fff;
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1rem;
      box-shadow: 0 4px 14px rgba(11, 27, 51, 0.25);
    }
    .navbar-nav .nav-item {
      margin: 0 4px;
    }
    .navbar-nav .nav-link {
      padding: 8px 16px;
      font-weight: 500;
      color: var(--text);
      border-radius: 8px;
      font-size: 0.95rem;
      transition: var(--transition);
      position: relative;
    }
    .navbar-nav .nav-link:hover {
      color: var(--accent-dark);
      background: var(--accent-light);
    }
    .navbar-nav .nav-link.active {
      color: var(--accent-dark);
      background: var(--accent-light);
      font-weight: 600;
    }
    .navbar-nav .nav-link.active::after {
      content: '';
      position: absolute;
      bottom: 2px;
      left: 16px;
      right: 16px;
      height: 2px;
      background: var(--accent);
      border-radius: 2px;
    }
    .nav-right {
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .search-box {
      display: flex;
      align-items: center;
      background: var(--bg);
      border: 1px solid var(--border);
      border-radius: 30px;
      overflow: hidden;
      transition: var(--transition);
    }
    .search-box:focus-within {
      border-color: var(--accent);
      box-shadow: 0 0 0 3px rgba(14, 165, 164, 0.15);
    }
    .search-box input {
      border: none;
      background: transparent;
      padding: 8px 0 8px 16px;
      font-size: 0.9rem;
      width: 160px;
      outline: none;
      color: var(--text);
    }
    .search-box button {
      border: none;
      background: transparent;
      padding: 8px 14px;
      color: var(--text-weak);
      cursor: pointer;
      transition: var(--transition);
    }
    .search-box button:hover {
      color: var(--accent);
    }
    .btn-nav-cta {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      background: var(--primary);
      color: #fff;
      font-weight: 600;
      font-size: 0.9rem;
      padding: 9px 20px;
      border-radius: 30px;
      transition: var(--transition);
      box-shadow: 0 4px 14px rgba(11, 27, 51, 0.2);
    }
    .btn-nav-cta:hover {
      background: var(--accent);
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(14, 165, 164, 0.3);
    }
    .navbar-toggler {
      border: none;
      background: var(--bg);
      border-radius: 8px;
      padding: 8px 10px;
    }
    .navbar-toggler:focus {
      box-shadow: 0 0 0 3px rgba(14, 165, 164, 0.25);
    }

    /* ===== 页面横幅 Hero ===== */
    .faq-hero {
      background: linear-gradient(135deg, rgba(11, 27, 51, 0.92), rgba(20, 49, 87, 0.85)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
      padding: 90px 0 70px;
      position: relative;
      color: #fff;
    }
    .faq-hero .hero-title {
      font-size: 2.8rem;
      font-weight: 800;
      line-height: 1.25;
      letter-spacing: -1px;
      margin-bottom: 16px;
    }
    .faq-hero .hero-title span {
      color: #5eead4;
    }
    .faq-hero .hero-desc {
      font-size: 1.1rem;
      opacity: 0.9;
      max-width: 640px;
      margin-bottom: 32px;
    }
    .hero-search {
      display: flex;
      align-items: center;
      background: #fff;
      border-radius: 50px;
      padding: 6px;
      max-width: 520px;
      box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    }
    .hero-search input {
      flex: 1;
      border: none;
      background: transparent;
      padding: 12px 18px;
      font-size: 1rem;
      outline: none;
      color: var(--text);
    }
    .hero-search button {
      border: none;
      background: var(--accent);
      color: #fff;
      font-weight: 600;
      padding: 12px 26px;
      border-radius: 50px;
      cursor: pointer;
      transition: var(--transition);
      white-space: nowrap;
    }
    .hero-search button:hover {
      background: var(--accent-dark);
    }
    .hero-actions {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-wrap: wrap;
    }
    .hero-actions .btn-ghost {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 10px 24px;
      border: 1px solid rgba(255, 255, 255, 0.4);
      border-radius: 50px;
      color: #fff;
      font-weight: 500;
      transition: var(--transition);
    }
    .hero-actions .btn-ghost:hover {
      background: rgba(255, 255, 255, 0.12);
      border-color: #fff;
      color: #fff;
    }
    .hero-badge {
      position: absolute;
      right: 40px;
      top: 40px;
      background: rgba(255, 255, 255, 0.15);
      backdrop-filter: blur(10px);
      border: 1px solid rgba(255, 255, 255, 0.2);
      border-radius: 12px;
      padding: 12px 20px;
      font-size: 0.85rem;
      color: #fff;
    }
    .hero-badge i {
      color: #5eead4;
      margin-right: 6px;
    }

    /* ===== 面包屑 ===== */
    .breadcrumb-bar {
      background: #fff;
      border-bottom: 1px solid var(--border);
      padding: 10px 0;
      font-size: 0.85rem;
    }
    .breadcrumb-bar .breadcrumb {
      margin: 0;
      background: transparent;
    }
    .breadcrumb-bar .breadcrumb-item a {
      color: var(--text-weak);
    }
    .breadcrumb-bar .breadcrumb-item a:hover {
      color: var(--accent);
    }
    .breadcrumb-bar .breadcrumb-item.active {
      color: var(--accent-dark);
      font-weight: 500;
    }

    /* ===== 分类卡片 ===== */
    .category-section {
      padding: 80px 0;
    }
    .category-card {
      background: var(--card-bg);
      border-radius: var(--radius);
      padding: 28px;
      height: 100%;
      border: 1px solid var(--border);
      box-shadow: var(--shadow);
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }
    .category-card::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      height: 3px;
      background: linear-gradient(90deg, var(--accent), transparent);
      opacity: 0;
      transition: var(--transition);
    }
    .category-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(14, 165, 164, 0.3);
    }
    .category-card:hover::after {
      opacity: 1;
    }
    .category-icon {
      width: 52px;
      height: 52px;
      border-radius: 14px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.3rem;
      margin-bottom: 18px;
    }
    .category-icon.icon-login {
      background: #eef6ff;
      color: #3b82f6;
    }
    .category-icon.icon-account {
      background: #eefbf3;
      color: #16a34a;
    }
    .category-icon.icon-security {
      background: #fef4e6;
      color: #f59e0b;
    }
    .category-icon.icon-other {
      background: #f0eeff;
      color: #8b5cf6;
    }
    .category-card h3 {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 10px;
    }
    .category-card p {
      color: var(--text-weak);
      font-size: 0.9rem;
      margin-bottom: 16px;
      line-height: 1.6;
    }
    .category-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }
    .category-tags .tag {
      background: var(--bg);
      border: 1px solid var(--border);
      color: var(--text);
      font-size: 0.8rem;
      padding: 4px 12px;
      border-radius: 20px;
      transition: var(--transition);
    }
    .category-tags .tag:hover {
      background: var(--accent-light);
      border-color: var(--accent);
      color: var(--accent-dark);
    }

    /* ===== FAQ手风琴 ===== */
    .faq-section {
      padding: 80px 0;
      background: #fff;
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
    }
    .faq-nav-tabs {
      display: flex;
      gap: 10px;
      overflow-x: auto;
      padding-bottom: 12px;
      margin-bottom: 30px;
    }
    .faq-nav-tabs .faq-tab {
      background: var(--bg);
      border: 1px solid var(--border);
      border-radius: 30px;
      padding: 10px 24px;
      font-size: 0.9rem;
      font-weight: 500;
      color: var(--text);
      cursor: pointer;
      white-space: nowrap;
      transition: var(--transition);
    }
    .faq-nav-tabs .faq-tab:hover {
      border-color: var(--accent);
      color: var(--accent-dark);
    }
    .faq-nav-tabs .faq-tab.active {
      background: var(--primary);
      color: #fff;
      border-color: var(--primary);
      box-shadow: 0 4px 16px rgba(11, 27, 51, 0.25);
    }
    .faq-panel {
      display: none;
    }
    .faq-panel.active {
      display: block;
    }
    .accordion-item {
      border: 1px solid var(--border) !important;
      border-radius: var(--radius-sm) !important;
      margin-bottom: 12px;
      overflow: hidden;
      background: #fff;
      box-shadow: 0 2px 8px rgba(11, 27, 51, 0.03);
    }
    .accordion-button {
      padding: 18px 24px;
      font-size: 1rem;
      font-weight: 600;
      color: var(--primary);
      background: #fff;
      border: none;
      transition: var(--transition);
    }
    .accordion-button:not(.collapsed) {
      background: var(--accent-light);
      color: var(--accent-dark);
      box-shadow: none;
    }
    .accordion-button:focus {
      box-shadow: 0 0 0 3px rgba(14, 165, 164, 0.2);
      border-radius: 0;
    }
    .accordion-button::after {
      background-size: 1rem;
      transition: var(--transition);
    }
    .accordion-body {
      padding: 16px 24px;
      color: var(--text-weak);
      font-size: 0.95rem;
      line-height: 1.8;
      border-top: 1px solid var(--border);
    }

    /* ===== 数据指标 ===== */
    .stats-section {
      padding: 80px 0;
      background: linear-gradient(135deg, var(--primary), var(--primary-light));
      color: #fff;
      position: relative;
      overflow: hidden;
    }
    .stats-section::before {
      content: '';
      position: absolute;
      top: -100px;
      right: -100px;
      width: 300px;
      height: 300px;
      border-radius: 50%;
      background: rgba(94, 234, 212, 0.08);
    }
    .stats-card {
      text-align: center;
      padding: 30px 20px;
    }
    .stats-card .stat-num {
      font-size: 2.8rem;
      font-weight: 800;
      line-height: 1.2;
      letter-spacing: -1px;
    }
    .stats-card .stat-num span {
      color: #5eead4;
    }
    .stats-card .stat-label {
      font-size: 0.95rem;
      opacity: 0.8;
      margin-top: 6px;
    }
    .stats-card .stat-icon {
      font-size: 1.6rem;
      margin-bottom: 12px;
      color: #5eead4;
    }

    /* ===== 流程时间线 ===== */
    .process-section {
      padding: 80px 0;
      background: var(--bg);
    }
    .process-card {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 30px;
      height: 100%;
      position: relative;
      transition: var(--transition);
    }
    .process-card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-4px);
    }
    .process-num {
      width: 40px;
      height: 40px;
      background: var(--primary);
      color: #fff;
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1.05rem;
      margin-bottom: 16px;
    }
    .process-card .process-icon {
      font-size: 1.5rem;
      color: var(--accent);
      margin-bottom: 12px;
    }
    .process-card h3 {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 8px;
    }
    .process-card p {
      font-size: 0.88rem;
      color: var(--text-weak);
      margin-bottom: 0;
      line-height: 1.6;
    }
    .process-arrow {
      position: absolute;
      right: -16px;
      top: 50%;
      transform: translateY(-50%);
      color: var(--accent);
      font-size: 1.1rem;
      z-index: 2;
    }

    /* ===== 自助工具 ===== */
    .tools-section {
      padding: 80px 0;
      background: #fff;
    }
    .tool-card {
      background: var(--bg);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 26px;
      text-align: center;
      height: 100%;
      transition: var(--transition);
    }
    .tool-card:hover {
      background: var(--accent-light);
      border-color: var(--accent);
      transform: translateY(-4px);
      box-shadow: var(--shadow);
    }
    .tool-card .tool-icon {
      width: 56px;
      height: 56px;
      margin: 0 auto 16px;
      background: #fff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.3rem;
      color: var(--accent);
      box-shadow: 0 4px 14px rgba(11, 27, 51, 0.1);
      transition: var(--transition);
    }
    .tool-card:hover .tool-icon {
      background: var(--accent);
      color: #fff;
    }
    .tool-card h3 {
      font-size: 1rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 8px;
    }
    .tool-card p {
      font-size: 0.85rem;
      color: var(--text-weak);
      margin-bottom: 16px;
      line-height: 1.6;
    }
    .tool-card .btn-tool {
      font-size: 0.85rem;
      font-weight: 600;
      padding: 7px 18px;
      border-radius: 30px;
      border: 1px solid var(--border);
      background: #fff;
      color: var(--primary);
      transition: var(--transition);
    }
    .tool-card .btn-tool:hover {
      background: var(--primary);
      color: #fff;
      border-color: var(--primary);
    }

    /* ===== CTA ===== */
    .cta-section {
      padding: 60px 0;
      background: linear-gradient(135deg, var(--accent), #0d9488);
      color: #fff;
      position: relative;
      overflow: hidden;
    }
    .cta-section::after {
      content: '';
      position: absolute;
      right: -40px;
      bottom: -60px;
      width: 220px;
      height: 220px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.1);
    }
    .cta-section h2 {
      font-size: 1.8rem;
      font-weight: 700;
      margin-bottom: 10px;
    }
    .cta-section p {
      opacity: 0.95;
      margin-bottom: 0;
    }
    .cta-btn-white {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #fff;
      color: var(--accent-dark);
      padding: 12px 32px;
      border-radius: 50px;
      font-weight: 700;
      transition: var(--transition);
      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
    }
    .cta-btn-white:hover {
      transform: translateY(-3px);
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
      color: var(--primary);
    }
    .cta-btn-outline {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      border: 1.5px solid rgba(255, 255, 255, 0.7);
      color: #fff;
      padding: 11px 28px;
      border-radius: 50px;
      font-weight: 600;
      transition: var(--transition);
    }
    .cta-btn-outline:hover {
      background: rgba(255, 255, 255, 0.15);
      color: #fff;
      border-color: #fff;
    }

    /* ===== 页脚 ===== */
    .site-footer {
      background: var(--primary);
      color: rgba(255, 255, 255, 0.8);
      padding: 70px 0 0;
    }
    .footer-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.1rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 16px;
    }
    .footer-brand-icon {
      width: 36px;
      height: 36px;
      background: linear-gradient(135deg, var(--accent), #5eead4);
      color: var(--primary);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.9rem;
    }
    .footer-desc {
      font-size: 0.9rem;
      line-height: 1.8;
      opacity: 0.8;
      margin-bottom: 18px;
      max-width: 320px;
    }
    .footer-social {
      display: flex;
      gap: 10px;
      margin-top: 16px;
    }
    .footer-social a {
      width: 36px;
      height: 36px;
      border-radius: 8px;
      background: rgba(255, 255, 255, 0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 0.85rem;
      transition: var(--transition);
    }
    .footer-social a:hover {
      background: var(--accent);
      transform: translateY(-3px);
    }
    .footer-title {
      color: #fff;
      font-size: 0.95rem;
      font-weight: 600;
      margin-bottom: 20px;
      position: relative;
      padding-bottom: 10px;
    }
    .footer-title::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 28px;
      height: 2px;
      background: var(--accent);
      border-radius: 2px;
    }
    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a {
      color: rgba(255, 255, 255, 0.7);
      font-size: 0.88rem;
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .footer-links a i {
      font-size: 0.65rem;
      color: var(--accent);
    }
    .footer-links a:hover {
      color: #fff;
      padding-left: 4px;
    }
    .footer-contact {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 12px;
      font-size: 0.88rem;
      color: rgba(255, 255, 255, 0.7);
    }
    .footer-contact i {
      color: var(--accent);
      width: 18px;
      text-align: center;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding: 20px 0;
      margin-top: 50px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 8px;
    }
    .footer-bottom p {
      margin: 0;
      font-size: 0.82rem;
      opacity: 0.6;
    }
    .footer-bottom a {
      color: rgba(255, 255, 255, 0.6);
      font-size: 0.82rem;
      transition: var(--transition);
    }
    .footer-bottom a:hover {
      color: #fff;
    }

    /* ===== 响应式 ===== */
    @media (max-width: 992px) {
      .section-title {
        font-size: 1.8rem;
      }
      .faq-hero .hero-title {
        font-size: 2.2rem;
      }
      .navbar-collapse {
        background: #fff;
        border-radius: 12px;
        padding: 16px;
        margin-top: 12px;
        box-shadow: var(--shadow);
        border: 1px solid var(--border);
      }
      .nav-right {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
        margin-top: 12px;
      }
      .search-box {
        width: 100%;
      }
      .search-box input {
        flex: 1;
        width: auto;
      }
      .btn-nav-cta {
        justify-content: center;
      }
      .process-arrow {
        display: none;
      }
      .process-card {
        margin-bottom: 20px;
      }
    }
    @media (max-width: 768px) {
      .faq-hero {
        padding: 60px 0 50px;
      }
      .faq-hero .hero-title {
        font-size: 1.8rem;
      }
      .hero-search {
        flex-direction: column;
        background: transparent;
        box-shadow: none;
        gap: 10px;
        padding: 0;
      }
      .hero-search input {
        width: 100%;
        border-radius: 50px;
        background: #fff;
      }
      .hero-search button {
        width: 100%;
      }
      .hero-badge {
        display: none;
      }
      .section-title {
        font-size: 1.55rem;
      }
      .stats-card .stat-num {
        font-size: 2.2rem;
      }
      .footer-bottom {
        flex-direction: column;
        text-align: center;
      }
    }
    @media (max-width: 520px) {
      .container {
        padding: 0 16px;
      }
      .navbar-brand .brand-text {
        font-size: 0.95rem;
      }
      .section-title {
        font-size: 1.35rem;
      }
      .faq-nav-tabs .faq-tab {
        padding: 8px 16px;
        font-size: 0.82rem;
      }
      .accordion-button {
        font-size: 0.95rem;
        padding: 15px 18px;
      }
      .cta-section h2 {
        font-size: 1.4rem;
      }
      .cta-buttons {
        flex-direction: column;
      }
      .cta-buttons .cta-btn-white,
      .cta-buttons .cta-btn-outline {
        width: 100%;
        justify-content: center;
      }
    }