/* roulang page: index */
/* ===== 设计变量 ===== */
:root {
  --clr-primary: #0d0d1a;
  --clr-primary-light: #1a1a2e;
  --clr-accent: #d4a843;
  --clr-accent-light: #f0c86a;
  --clr-accent-dark: #b8932e;
  --clr-bg: #f5f3ef;
  --clr-bg-card: #ffffff;
  --clr-bg-dark: #0d0d1a;
  --clr-text: #1a1a2e;
  --clr-text-light: #4a4a5a;
  --clr-text-muted: #8a8a9a;
  --clr-text-inverse: #f0ece4;
  --clr-border: #e0dcd4;
  --clr-border-light: #efebe3;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 8px 30px rgba(0,0,0,0.10);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.15);
  --shadow-accent: 0 4px 20px rgba(212,168,67,0.30);
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  --font-sans: 'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;
  --sidebar-width: 260px;
  --header-mobile-height: 64px;
  --transition: 0.25s cubic-bezier(0.4,0,0.2,1);
}

/* ===== 基础 Reset ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:var(--font-sans);color:var(--clr-text);background:var(--clr-bg);line-height:1.7;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:var(--transition)}
a:hover{color:var(--clr-accent)}
button,input,textarea{font-family:inherit;font-size:inherit;border:none;outline:none;transition:var(--transition)}
button{cursor:pointer}
ul,ol{list-style:none}
h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.3}
h1{font-size:clamp(2rem,5vw,3.2rem)}
h2{font-size:clamp(1.5rem,3vw,2.2rem)}
h3{font-size:clamp(1.1rem,1.8vw,1.4rem)}
p{margin-bottom:1rem;color:var(--clr-text-light)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--spacing-sm)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}

/* ===== 布局 ===== */
.layout{display:flex;min-height:100vh}

/* ===== 侧边栏 ===== */
.sidebar{
  position:fixed;top:0;left:0;width:var(--sidebar-width);height:100vh;z-index:1000;
  background:var(--clr-primary);color:var(--clr-text-inverse);
  display:flex;flex-direction:column;padding:0;
  transition:transform var(--transition);
  overflow-y:auto;
}
.sidebar-brand{
  padding:var(--spacing-md) var(--spacing-sm);
  border-bottom:1px solid rgba(255,255,255,0.06);
  text-align:center;
}
.sidebar-brand .logo-text{
  font-size:1.2rem;font-weight:800;letter-spacing:1px;
  background:linear-gradient(135deg,var(--clr-accent),var(--clr-accent-light));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;
}
.sidebar-brand .logo-sub{
  font-size:0.7rem;color:rgba(255,255,255,0.4);margin-top:4px;letter-spacing:2px;
}
.sidebar-nav{flex:1;padding:var(--spacing-sm) 0}
.sidebar-nav a{
  display:flex;align-items:center;gap:12px;
  padding:12px var(--spacing-md);
  font-size:0.95rem;font-weight:500;color:rgba(255,255,255,0.7);
  border-left:3px solid transparent;transition:var(--transition);
}
.sidebar-nav a i{width:20px;text-align:center;font-size:1rem}
.sidebar-nav a:hover,.sidebar-nav a.active{
  color:var(--clr-accent-light);background:rgba(212,168,67,0.08);border-left-color:var(--clr-accent);
}
.sidebar-nav a.active{font-weight:600;color:var(--clr-accent)}
.sidebar-footer{
  padding:var(--spacing-sm) var(--spacing-md);
  border-top:1px solid rgba(255,255,255,0.06);
  font-size:0.7rem;color:rgba(255,255,255,0.3);text-align:center;
}

/* ===== 主内容区 ===== */
.content-area{
  margin-left:var(--sidebar-width);flex:1;min-height:100vh;
  display:flex;flex-direction:column;
}

/* ===== 移动端顶部栏 ===== */
.mobile-header{
  display:none;position:sticky;top:0;z-index:999;
  height:var(--header-mobile-height);
  background:var(--clr-primary);padding:0 var(--spacing-sm);
  align-items:center;justify-content:space-between;
}
.mobile-header .logo-text{
  font-size:1rem;font-weight:800;
  background:linear-gradient(135deg,var(--clr-accent),var(--clr-accent-light));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;
}
.mobile-header .menu-toggle{
  background:none;color:var(--clr-text-inverse);font-size:1.4rem;
  width:44px;height:44px;display:flex;align-items:center;justify-content:center;
  border-radius:var(--radius-sm);
}
.mobile-header .menu-toggle:hover{background:rgba(255,255,255,0.08)}

/* ===== 移动端导航遮罩 ===== */
.mobile-nav-overlay{
  display:none;position:fixed;top:var(--header-mobile-height);left:0;right:0;bottom:0;
  background:rgba(0,0,0,0.5);z-index:998;
}
.mobile-nav-overlay.open{display:block}
.mobile-nav-panel{
  position:fixed;top:var(--header-mobile-height);left:0;right:0;
  background:var(--clr-primary);z-index:999;
  padding:var(--spacing-sm) 0;
  transform:translateY(-120%);transition:transform 0.35s cubic-bezier(0.4,0,0.2,1);
  box-shadow:var(--shadow-lg);
}
.mobile-nav-panel.open{transform:translateY(0)}
.mobile-nav-panel a{
  display:block;padding:14px var(--spacing-md);
  color:rgba(255,255,255,0.8);font-size:1rem;font-weight:500;
  border-left:3px solid transparent;transition:var(--transition);
}
.mobile-nav-panel a i{margin-right:10px;width:20px;text-align:center}
.mobile-nav-panel a:hover,.mobile-nav-panel a.active{
  color:var(--clr-accent);background:rgba(212,168,67,0.08);border-left-color:var(--clr-accent);
}

/* ===== Main 通用样式 ===== */
.main{flex:1}
.section{padding:var(--spacing-xl) 0}
.section-title{text-align:center;margin-bottom:var(--spacing-lg)}
.section-title h2{position:relative;display:inline-block;margin-bottom:0.5rem}
.section-title h2::after{
  content:'';display:block;width:60px;height:3px;
  background:linear-gradient(90deg,var(--clr-accent),var(--clr-accent-light));
  margin:12px auto 0;border-radius:4px;
}
.section-title p{color:var(--clr-text-muted);font-size:1.05rem;max-width:600px;margin:0 auto}

/* ===== Hero ===== */
.hero{
  position:relative;min-height:80vh;display:flex;align-items:center;
  background:linear-gradient(135deg,var(--clr-primary) 0%,#1a1a3e 50%,var(--clr-primary) 100%);
  overflow:hidden;
}
.hero::before{
  content:'';position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  opacity:0.25;mix-blend-mode:overlay;
}
.hero::after{
  content:'';position:absolute;inset:0;
  background:radial-gradient(ellipse at 30% 50%,rgba(212,168,67,0.08) 0%,transparent 70%);
}
.hero .container{position:relative;z-index:2;width:100%}
.hero-content{max-width:700px}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(212,168,67,0.15);color:var(--clr-accent);
  padding:6px 18px;border-radius:50px;font-size:0.85rem;font-weight:600;
  margin-bottom:var(--spacing-md);border:1px solid rgba(212,168,67,0.25);
}
.hero-badge i{font-size:0.75rem}
.hero h1{
  color:var(--clr-text-inverse);font-size:clamp(2.2rem,5.5vw,3.8rem);
  line-height:1.15;margin-bottom:var(--spacing-sm);font-weight:800;
}
.hero h1 .highlight{
  background:linear-gradient(135deg,var(--clr-accent),var(--clr-accent-light));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;
}
.hero p{
  color:rgba(255,255,255,0.7);font-size:clamp(1rem,1.5vw,1.2rem);
  max-width:560px;margin-bottom:var(--spacing-md);line-height:1.8;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:var(--spacing-sm);align-items:center}
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 36px;border-radius:50px;font-weight:600;font-size:1rem;
  transition:var(--transition);border:2px solid transparent;
}
.btn-primary{
  background:linear-gradient(135deg,var(--clr-accent),var(--clr-accent-light));
  color:var(--clr-primary);border-color:var(--clr-accent);
  box-shadow:var(--shadow-accent);
}
.btn-primary:hover{
  transform:translateY(-3px);box-shadow:0 8px 30px rgba(212,168,67,0.40);
  color:var(--clr-primary);
}
.btn-outline{
  background:transparent;color:var(--clr-text-inverse);border-color:rgba(255,255,255,0.3);
}
.btn-outline:hover{background:rgba(255,255,255,0.08);border-color:var(--clr-accent);color:var(--clr-accent)}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:var(--spacing-lg);margin-top:var(--spacing-lg);
  padding-top:var(--spacing-md);border-top:1px solid rgba(255,255,255,0.08);
}
.hero-stat-item{text-align:center}
.hero-stat-item .num{
  font-size:2rem;font-weight:800;color:var(--clr-accent);line-height:1;
}
.hero-stat-item .label{
  font-size:0.8rem;color:rgba(255,255,255,0.5);margin-top:4px;
}

/* ===== 核心优势 ===== */
.features-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:var(--spacing-md);
}
.feature-card{
  background:var(--clr-bg-card);border-radius:var(--radius-md);padding:var(--spacing-md);
  box-shadow:var(--shadow-sm);border:1px solid var(--clr-border-light);
  transition:var(--transition);text-align:center;
}
.feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:var(--clr-accent)}
.feature-icon{
  width:64px;height:64px;margin:0 auto var(--spacing-sm);
  background:linear-gradient(135deg,rgba(212,168,67,0.12),rgba(212,168,67,0.06));
  border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-size:1.6rem;color:var(--clr-accent);
}
.feature-card h3{margin-bottom:0.5rem;font-size:1.15rem}
.feature-card p{font-size:0.92rem;color:var(--clr-text-light);margin-bottom:0}

/* ===== 分类入口 ===== */
.category-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:var(--spacing-md);
}
.category-card{
  position:relative;border-radius:var(--radius-md);overflow:hidden;
  background:var(--clr-bg-card);box-shadow:var(--shadow-sm);
  border:1px solid var(--clr-border-light);transition:var(--transition);
  display:flex;flex-direction:column;
}
.category-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:var(--clr-accent)}
.category-card .card-img{height:200px;overflow:hidden}
.category-card .card-img img{width:100%;height:100%;object-fit:cover;transition:transform 0.5s}
.category-card:hover .card-img img{transform:scale(1.05)}
.category-card .card-body{padding:var(--spacing-sm) var(--spacing-md);flex:1;display:flex;flex-direction:column}
.category-card .card-body h3{font-size:1.1rem;margin-bottom:0.3rem}
.category-card .card-body p{font-size:0.88rem;color:var(--clr-text-muted);flex:1;margin-bottom:0.8rem}
.category-card .card-footer{padding:0 var(--spacing-md) var(--spacing-sm) var(--spacing-md)}
.category-card .tag{
  display:inline-block;padding:4px 14px;border-radius:50px;
  background:rgba(212,168,67,0.12);color:var(--clr-accent-dark);
  font-size:0.75rem;font-weight:600;
}

/* ===== 最新资讯 ===== */
.news-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:var(--spacing-md);
}
.news-card{
  background:var(--clr-bg-card);border-radius:var(--radius-md);overflow:hidden;
  box-shadow:var(--shadow-sm);border:1px solid var(--clr-border-light);
  transition:var(--transition);display:flex;flex-direction:column;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--clr-accent)}
.news-card .card-img{height:180px;overflow:hidden}
.news-card .card-img img{width:100%;height:100%;object-fit:cover;transition:transform 0.5s}
.news-card:hover .card-img img{transform:scale(1.05)}
.news-card .card-body{padding:var(--spacing-sm) var(--spacing-md);flex:1;display:flex;flex-direction:column}
.news-card .card-meta{
  display:flex;align-items:center;gap:12px;font-size:0.78rem;
  color:var(--clr-text-muted);margin-bottom:0.5rem;
}
.news-card .card-meta .category-tag{
  padding:2px 12px;border-radius:50px;
  background:rgba(212,168,67,0.12);color:var(--clr-accent-dark);font-weight:600;
}
.news-card .card-body h3{font-size:1rem;margin-bottom:0.4rem;line-height:1.4}
.news-card .card-body p{font-size:0.86rem;color:var(--clr-text-muted);flex:1;margin-bottom:0.8rem}
.news-card .card-body .read-more{
  color:var(--clr-accent);font-weight:600;font-size:0.85rem;display:inline-flex;align-items:center;gap:6px;
}
.news-card .card-body .read-more:hover{color:var(--clr-accent-dark)}
.news-empty{
  grid-column:1/-1;text-align:center;padding:var(--spacing-lg) var(--spacing-md);
  background:var(--clr-bg-card);border-radius:var(--radius-md);
  border:1px dashed var(--clr-border);color:var(--clr-text-muted);
}
.news-empty i{font-size:2rem;margin-bottom:var(--spacing-sm);color:var(--clr-border)}

/* ===== 数据统计 ===== */
.stats-section{
  background:var(--clr-primary);position:relative;overflow:hidden;
}
.stats-section::before{
  content:'';position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity:0.08;mix-blend-mode:overlay;
}
.stats-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:var(--spacing-md);
  position:relative;z-index:2;
}
.stat-card{text-align:center;padding:var(--spacing-md) var(--spacing-sm)}
.stat-card .stat-icon{font-size:2rem;color:var(--clr-accent);margin-bottom:var(--spacing-xs)}
.stat-card .stat-num{
  font-size:2.8rem;font-weight:800;color:var(--clr-text-inverse);line-height:1;
  margin-bottom:0.3rem;
}
.stat-card .stat-label{font-size:0.9rem;color:rgba(255,255,255,0.6)}
.stats-section .section-title h2{color:var(--clr-text-inverse)}
.stats-section .section-title p{color:rgba(255,255,255,0.5)}

/* ===== 流程介绍 ===== */
.process-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:var(--spacing-md);
  counter-reset:step;
}
.process-step{
  text-align:center;padding:var(--spacing-md) var(--spacing-sm);
  position:relative;
}
.process-step::before{
  counter-increment:step;content:counter(step);
  display:flex;align-items:center;justify-content:center;
  width:48px;height:48px;margin:0 auto var(--spacing-sm);
  background:linear-gradient(135deg,var(--clr-accent),var(--clr-accent-light));
  color:var(--clr-primary);font-size:1.2rem;font-weight:800;
  border-radius:50%;
}
.process-step h3{font-size:1.05rem;margin-bottom:0.3rem}
.process-step p{font-size:0.88rem;color:var(--clr-text-muted);margin-bottom:0}
.process-step:not(:last-child)::after{
  content:'→';position:absolute;right:-10px;top:30%;
  font-size:1.5rem;color:var(--clr-accent);opacity:0.4;
}

/* ===== FAQ ===== */
.faq-list{max-width:800px;margin:0 auto;display:flex;flex-direction:column;gap:var(--spacing-sm)}
.faq-item{
  background:var(--clr-bg-card);border-radius:var(--radius-md);
  border:1px solid var(--clr-border-light);overflow:hidden;
  transition:var(--transition);
}
.faq-item:hover{border-color:var(--clr-accent);box-shadow:var(--shadow-sm)}
.faq-question{
  display:flex;align-items:center;justify-content:space-between;
  padding:var(--spacing-sm) var(--spacing-md);cursor:pointer;
  font-weight:600;font-size:1rem;gap:var(--spacing-sm);
  background:none;width:100%;text-align:left;color:var(--clr-text);
}
.faq-question i{color:var(--clr-accent);transition:transform var(--transition);font-size:0.85rem}
.faq-item.active .faq-question i{transform:rotate(180deg)}
.faq-answer{
  max-height:0;overflow:hidden;transition:max-height 0.35s ease,padding 0.35s ease;
  padding:0 var(--spacing-md);
}
.faq-item.active .faq-answer{
  max-height:300px;padding:0 var(--spacing-md) var(--spacing-sm) var(--spacing-md);
}
.faq-answer p{font-size:0.92rem;color:var(--clr-text-light);margin-bottom:0}

/* ===== CTA ===== */
.cta-section{
  background:linear-gradient(135deg,var(--clr-primary) 0%,#1a1a3e 100%);
  position:relative;overflow:hidden;text-align:center;
}
.cta-section::before{
  content:'';position:absolute;inset:0;
  background:url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  opacity:0.08;mix-blend-mode:overlay;
}
.cta-section .container{position:relative;z-index:2}
.cta-section h2{color:var(--clr-text-inverse);font-size:clamp(1.6rem,3vw,2.4rem);margin-bottom:0.8rem}
.cta-section p{color:rgba(255,255,255,0.7);font-size:1.05rem;max-width:600px;margin:0 auto var(--spacing-md)}
.cta-actions{display:flex;flex-wrap:wrap;gap:var(--spacing-sm);justify-content:center}

/* ===== 页脚 ===== */
.footer{
  background:var(--clr-primary);padding:var(--spacing-lg) 0 var(--spacing-md);
  border-top:1px solid rgba(255,255,255,0.06);
}
.footer-grid{
  display:grid;grid-template-columns:2fr 1fr 1fr;gap:var(--spacing-lg);
  margin-bottom:var(--spacing-lg);
}
.footer-brand .logo-text{
  font-size:1.1rem;font-weight:800;
  background:linear-gradient(135deg,var(--clr-accent),var(--clr-accent-light));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;display:inline-block;margin-bottom:0.5rem;
}
.footer-brand p{font-size:0.85rem;color:rgba(255,255,255,0.5);max-width:320px;margin-bottom:0}
.footer h4{color:var(--clr-text-inverse);font-size:0.95rem;margin-bottom:var(--spacing-sm)}
.footer ul li{margin-bottom:0.4rem}
.footer ul li a{color:rgba(255,255,255,0.5);font-size:0.85rem;transition:var(--transition)}
.footer ul li a:hover{color:var(--clr-accent)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.06);
  padding-top:var(--spacing-md);text-align:center;
  font-size:0.78rem;color:rgba(255,255,255,0.3);
}
.footer-bottom a{color:rgba(255,255,255,0.4)}
.footer-bottom a:hover{color:var(--clr-accent)}

/* ===== 响应式 ===== */
@media(max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:var(--spacing-md)}
  .process-step:not(:last-child)::after{display:none}
}

@media(max-width:768px){
  .sidebar{transform:translateX(-100%)}
  .sidebar.open{transform:translateX(0)}
  .content-area{margin-left:0}
  .mobile-header{display:flex}
  .hero{min-height:70vh}
  .hero-stats{gap:var(--spacing-md)}
  .hero-stat-item .num{font-size:1.6rem}
  .features-grid{grid-template-columns:1fr 1fr}
  .news-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr 1fr}
  .process-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr;gap:var(--spacing-md)}
  .section{padding:var(--spacing-lg) 0}
  .category-grid{grid-template-columns:1fr}
}

@media(max-width:520px){
  .features-grid{grid-template-columns:1fr}
  .process-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr 1fr}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{justify-content:center}
  .hero h1{font-size:1.8rem}
  .section-title p{font-size:0.92rem}
  .cta-actions{flex-direction:column;align-items:stretch}
  .cta-actions .btn{justify-content:center}
}

/* ===== 滚动条美化 ===== */
.sidebar::-webkit-scrollbar{width:4px}
.sidebar::-webkit-scrollbar-track{background:transparent}
.sidebar::-webkit-scrollbar-thumb{background:rgba(255,255,255,0.15);border-radius:4px}

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #c8a84e;
            --primary-dark: #a8882e;
            --primary-light: #e8d48e;
            --secondary: #1a1a2e;
            --secondary-light: #2a2a4e;
            --bg-body: #0b0b14;
            --bg-card: #16162a;
            --bg-card-hover: #1e1e3a;
            --bg-sidebar: #0f0f20;
            --text-primary: #f0ede8;
            --text-secondary: #b8b4ae;
            --text-muted: #7a7874;
            --border-color: #2a2a4a;
            --border-light: #3a3a5a;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-xs: 6px;
            --shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
            --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.3);
            --shadow-glow: 0 0 30px rgba(200, 168, 78, 0.15);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --sidebar-width: 220px;
            --header-height: 0px;
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --container-max: 1200px;
            --content-padding: 32px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover { color: var(--primary-light); }
        a:focus-visible { outline: 2px solid var(--primary); outline-offset: 4px; border-radius: var(--radius-xs); }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }

        button, input, textarea, select {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }

        button {
            cursor: pointer;
            background: none;
        }

        ul, ol { list-style: none; }

        /* ===== 容器 ===== */
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--content-padding);
            width: 100%;
        }

        /* ===== 布局：左侧导航 + 右侧内容 ===== */
        .app-layout {
            display: flex;
            min-height: 100vh;
        }

        /* ===== 左侧导航 ===== */
        .sidebar {
            width: var(--sidebar-width);
            background: var(--bg-sidebar);
            border-right: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            z-index: 100;
            transition: transform var(--transition);
            padding: 0;
            overflow-y: auto;
        }

        .sidebar-brand {
            padding: 28px 20px 20px;
            border-bottom: 1px solid var(--border-color);
            text-align: center;
        }

        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 1px;
            line-height: 1.3;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .logo-sub {
            font-size: 11px;
            color: var(--text-muted);
            margin-top: 4px;
            letter-spacing: 3px;
            text-transform: uppercase;
        }

        .sidebar-nav {
            padding: 16px 12px;
            display: flex;
            flex-direction: column;
            gap: 4px;
            flex: 1;
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-size: 15px;
            font-weight: 500;
            transition: all var(--transition);
            position: relative;
        }

        .sidebar-nav a i {
            width: 20px;
            text-align: center;
            font-size: 16px;
            color: var(--text-muted);
            transition: color var(--transition);
        }

        .sidebar-nav a:hover {
            background: rgba(200, 168, 78, 0.08);
            color: var(--text-primary);
        }
        .sidebar-nav a:hover i { color: var(--primary); }

        .sidebar-nav a.active {
            background: rgba(200, 168, 78, 0.12);
            color: var(--primary);
        }
        .sidebar-nav a.active i { color: var(--primary); }
        .sidebar-nav a.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 28px;
            background: var(--primary);
            border-radius: 0 4px 4px 0;
        }

        .sidebar-footer {
            padding: 16px 20px;
            border-top: 1px solid var(--border-color);
            font-size: 12px;
            color: var(--text-muted);
            text-align: center;
        }

        .sidebar-footer a { color: var(--text-muted); }
        .sidebar-footer a:hover { color: var(--primary); }

        /* ===== 右侧主内容 ===== */
        .main-content {
            margin-left: var(--sidebar-width);
            flex: 1;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }

        /* ===== 文章详情头图 ===== */
        .article-hero {
            position: relative;
            padding: 80px 0 60px;
            background: linear-gradient(135deg, var(--secondary) 0%, #0f0f20 100%);
            overflow: hidden;
        }

        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.12;
            pointer-events: none;
        }

        .article-hero .container {
            position: relative;
            z-index: 1;
        }

        .article-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }

        .article-breadcrumb a {
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .article-breadcrumb a:hover { color: var(--primary); }
        .article-breadcrumb .sep { color: var(--border-light); }
        .article-breadcrumb .current { color: var(--text-secondary); }

        .article-hero h1 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 16px;
            max-width: 800px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 14px;
            color: var(--text-muted);
        }

        .article-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .article-meta i { color: var(--primary); font-size: 14px; }

        .article-category-badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 20px;
            background: rgba(200, 168, 78, 0.15);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
        }

        /* ===== 文章正文 ===== */
        .article-body-section {
            padding: 50px 0 60px;
        }

        .article-content-wrapper {
            max-width: 820px;
            margin: 0 auto;
        }

        .article-cover-img {
            border-radius: var(--radius);
            margin-bottom: 36px;
            box-shadow: var(--shadow);
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            background: var(--bg-card);
        }

        .article-body {
            font-size: 17px;
            line-height: 1.9;
            color: var(--text-primary);
        }

        .article-body p {
            margin-bottom: 20px;
        }

        .article-body h2 {
            font-size: 26px;
            font-weight: 700;
            margin: 40px 0 16px;
            color: var(--primary);
            line-height: 1.3;
        }

        .article-body h3 {
            font-size: 20px;
            font-weight: 600;
            margin: 32px 0 12px;
            color: var(--text-primary);
            line-height: 1.4;
        }

        .article-body ul,
        .article-body ol {
            margin: 16px 0 24px;
            padding-left: 24px;
        }

        .article-body li {
            margin-bottom: 8px;
            position: relative;
        }

        .article-body ul li::before {
            content: '';
            position: absolute;
            left: -18px;
            top: 12px;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--primary);
        }

        .article-body blockquote {
            border-left: 4px solid var(--primary);
            padding: 16px 24px;
            margin: 24px 0;
            background: rgba(200, 168, 78, 0.05);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }

        .article-body img {
            border-radius: var(--radius-sm);
            margin: 24px 0;
            box-shadow: var(--shadow-sm);
        }

        .article-body a {
            color: var(--primary);
            border-bottom: 1px solid rgba(200, 168, 78, 0.3);
            transition: border-color var(--transition);
        }
        .article-body a:hover { border-bottom-color: var(--primary); }

        /* ===== 文章底部 ===== */
        .article-footer-bar {
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid var(--border-color);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
        }

        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 20px;
            background: rgba(200, 168, 78, 0.08);
            border: 1px solid var(--border-light);
            color: var(--text-secondary);
            font-size: 13px;
            transition: all var(--transition);
        }
        .tag:hover {
            background: rgba(200, 168, 78, 0.15);
            border-color: var(--primary);
            color: var(--primary);
        }

        .article-share {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .article-share span {
            font-size: 14px;
            color: var(--text-muted);
        }

        .share-btn {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition);
            font-size: 14px;
        }
        .share-btn:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: var(--secondary);
            transform: translateY(-2px);
        }

        /* ===== 相关文章 ===== */
        .related-section {
            padding: 50px 0 60px;
            background: var(--bg-sidebar);
        }

        .related-section .section-title {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 32px;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .related-section .section-title i { color: var(--primary); }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: all var(--transition);
        }
        .related-card:hover {
            transform: translateY(-4px);
            border-color: var(--border-light);
            box-shadow: var(--shadow);
        }

        .related-card img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            border-radius: 0;
        }

        .related-card-body {
            padding: 18px 20px 20px;
        }

        .related-card-body h3 {
            font-size: 16px;
            font-weight: 600;
            line-height: 1.4;
            margin-bottom: 8px;
        }
        .related-card-body h3 a {
            color: var(--text-primary);
            transition: color var(--transition);
        }
        .related-card-body h3 a:hover { color: var(--primary); }

        .related-card-body .meta {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .related-card-body .meta i { font-size: 12px; }

        /* ===== CTA 区块 ===== */
        .article-cta {
            padding: 50px 0;
            background: linear-gradient(135deg, var(--secondary) 0%, #0f0f20 100%);
            text-align: center;
        }

        .article-cta h2 {
            font-size: 30px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-primary);
        }

        .article-cta p {
            color: var(--text-secondary);
            font-size: 17px;
            max-width: 600px;
            margin: 0 auto 28px;
        }

        .btn-group {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: 50px;
            font-size: 16px;
            font-weight: 600;
            transition: all var(--transition);
            border: none;
            cursor: pointer;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: var(--secondary);
            box-shadow: 0 4px 20px rgba(200, 168, 78, 0.3);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(200, 168, 78, 0.4);
            color: var(--secondary);
        }

        .btn-outline {
            background: transparent;
            border: 2px solid var(--border-light);
            color: var(--text-primary);
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
        }

        .btn-sm {
            padding: 10px 22px;
            font-size: 14px;
        }

        /* ===== 错误状态 ===== */
        .error-state {
            text-align: center;
            padding: 80px 20px;
        }

        .error-state i {
            font-size: 56px;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .error-state h2 {
            font-size: 28px;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .error-state p {
            color: var(--text-secondary);
            margin-bottom: 24px;
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--bg-sidebar);
            border-top: 1px solid var(--border-color);
            padding: 48px 0 28px;
            margin-top: auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .footer-brand .logo-text {
            font-size: 20px;
            margin-bottom: 12px;
            display: inline-block;
        }

        .footer-brand p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.7;
            margin-top: 8px;
        }

        .footer h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

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

        .footer ul li a {
            color: var(--text-muted);
            font-size: 14px;
            transition: color var(--transition);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer ul li a:hover { color: var(--primary); }
        .footer ul li a i { font-size: 13px; width: 16px; color: var(--primary); }

        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 24px;
            text-align: center;
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-bottom a {
            color: var(--text-muted);
        }
        .footer-bottom a:hover { color: var(--primary); }

        /* ===== 移动端导航切换 ===== */
        .mobile-toggle {
            display: none;
            position: fixed;
            top: 16px;
            left: 16px;
            z-index: 200;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            color: var(--text-primary);
            font-size: 20px;
            align-items: center;
            justify-content: center;
            backdrop-filter: blur(12px);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .mobile-toggle:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-light);
        }

        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 90;
            backdrop-filter: blur(4px);
            opacity: 0;
            transition: opacity var(--transition);
            pointer-events: none;
        }
        .sidebar-overlay.active {
            opacity: 1;
            pointer-events: auto;
        }

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

        @media (max-width: 768px) {
            :root {
                --content-padding: 20px;
                --sidebar-width: 260px;
            }

            .mobile-toggle {
                display: flex;
            }

            .sidebar {
                transform: translateX(-100%);
            }

            .sidebar.open {
                transform: translateX(0);
            }

            .sidebar-overlay {
                display: block;
            }

            .main-content {
                margin-left: 0;
                padding-top: 0;
            }

            .article-hero {
                padding: 60px 0 40px;
            }

            .article-hero h1 {
                font-size: 26px;
            }

            .article-meta {
                gap: 12px;
                font-size: 13px;
            }

            .article-body {
                font-size: 16px;
            }

            .article-body h2 {
                font-size: 22px;
            }
            .article-body h3 {
                font-size: 18px;
            }

            .article-content-wrapper {
                max-width: 100%;
            }

            .related-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .article-cta h2 {
                font-size: 24px;
            }

            .btn-group {
                flex-direction: column;
                align-items: center;
            }

            .btn {
                width: 100%;
                max-width: 300px;
                justify-content: center;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
                text-align: center;
            }

            .footer ul li a {
                justify-content: center;
            }

            .article-footer-bar {
                flex-direction: column;
                align-items: flex-start;
            }

            .article-share {
                width: 100%;
                justify-content: flex-start;
            }

            .article-breadcrumb {
                font-size: 13px;
            }
        }

        @media (max-width: 520px) {
            .article-hero h1 {
                font-size: 22px;
            }

            .article-body {
                font-size: 15px;
            }

            .article-body h2 {
                font-size: 20px;
            }

            .related-section .section-title {
                font-size: 22px;
            }

            .article-cta h2 {
                font-size: 20px;
            }

            .article-cta p {
                font-size: 15px;
            }
        }

        /* ===== 滚动条美化 ===== */
        .sidebar::-webkit-scrollbar {
            width: 4px;
        }
        .sidebar::-webkit-scrollbar-track {
            background: transparent;
        }
        .sidebar::-webkit-scrollbar-thumb {
            background: var(--border-light);
            border-radius: 4px;
        }
        .sidebar::-webkit-scrollbar-thumb:hover {
            background: var(--text-muted);
        }

        /* ===== 加载动画 ===== */
        @keyframes fadeInUp {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .article-hero .container {
            animation: fadeInUp 0.6s ease-out;
        }

        .article-content-wrapper {
            animation: fadeInUp 0.6s ease-out 0.1s both;
        }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #c8a44e;
            --primary-light: #e0c078;
            --primary-dark: #a8883a;
            --secondary: #1a1a2e;
            --secondary-light: #2a2a4e;
            --accent: #e8d5a3;
            --bg: #0b0b14;
            --bg-card: #13131f;
            --bg-elevated: #1a1a2e;
            --text: #f0ece4;
            --text-secondary: #b8b0a4;
            --text-weak: #7a7266;
            --border: #2a2a3e;
            --border-light: #3a3a4e;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
            --shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.7);
            --shadow-glow: 0 0 30px rgba(200, 164, 78, 0.15);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            --nav-width: 240px;
            --header-height: 70px;
            --max-width: 1200px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 32px;
            --spacing-lg: 64px;
            --spacing-xl: 96px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            display: flex;
            min-height: 100vh;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-light);
        }
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 4px;
            border-radius: 4px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        img::selection {
            background: transparent;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
            border: none;
            background: none;
            outline: none;
        }
        button {
            cursor: pointer;
        }
        button:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 4px;
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--text);
            letter-spacing: -0.02em;
        }

        h1 {
            font-size: clamp(2.2rem, 5vw, 3.6rem);
        }
        h2 {
            font-size: clamp(1.6rem, 3.5vw, 2.4rem);
        }
        h3 {
            font-size: clamp(1.2rem, 2.5vw, 1.6rem);
        }
        h4 {
            font-size: 1.15rem;
        }

        p {
            margin-bottom: 1em;
            color: var(--text-secondary);
        }
        p:last-child {
            margin-bottom: 0;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing-sm);
        }

        .section-title {
            text-align: center;
            margin-bottom: var(--spacing-md);
        }
        .section-title h2 {
            position: relative;
            display: inline-block;
        }
        .section-title h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--primary-light));
            margin: 12px auto 0;
            border-radius: 4px;
        }
        .section-title p {
            max-width: 640px;
            margin: 16px auto 0;
            color: var(--text-secondary);
            font-size: 1.05rem;
        }

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

        .badge {
            display: inline-block;
            padding: 4px 14px;
            background: rgba(200, 164, 78, 0.15);
            border: 1px solid rgba(200, 164, 78, 0.3);
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 0.03em;
            text-transform: uppercase;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 12px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            border: 1px solid transparent;
            cursor: pointer;
            text-decoration: none;
            line-height: 1.4;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #0b0b14;
            border-color: var(--primary);
            box-shadow: 0 4px 20px rgba(200, 164, 78, 0.3);
        }
        .btn-primary:hover {
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(200, 164, 78, 0.45);
            color: #0b0b14;
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 12px rgba(200, 164, 78, 0.3);
        }
        .btn-secondary {
            background: transparent;
            color: var(--text);
            border-color: var(--border-light);
        }
        .btn-secondary:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(200, 164, 78, 0.08);
            transform: translateY(-2px);
        }
        .btn-secondary:active {
            transform: translateY(0);
        }
        .btn-lg {
            padding: 16px 44px;
            font-size: 1.05rem;
        }

        /* ===== Layout: Sidebar + Main ===== */
        .layout-wrapper {
            display: flex;
            width: 100%;
            min-height: 100vh;
        }

        /* ===== Sidebar Navigation ===== */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width);
            height: 100vh;
            background: var(--secondary);
            border-right: 1px solid var(--border);
            display: flex;
            flex-direction: column;
            z-index: 1000;
            padding: 0;
            overflow-y: auto;
            backdrop-filter: blur(12px);
        }

        .sidebar-brand {
            padding: 24px 20px 20px;
            border-bottom: 1px solid var(--border);
        }

        .logo-text {
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.01em;
            line-height: 1.3;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo-text i {
            font-size: 1.4rem;
            color: var(--primary-light);
        }

        .sidebar-nav {
            flex: 1;
            padding: 16px 12px;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.95rem;
            transition: var(--transition);
            text-decoration: none;
        }
        .sidebar-nav a i {
            width: 20px;
            text-align: center;
            font-size: 1rem;
            color: var(--text-weak);
            transition: var(--transition);
        }
        .sidebar-nav a:hover {
            background: rgba(200, 164, 78, 0.08);
            color: var(--text);
        }
        .sidebar-nav a:hover i {
            color: var(--primary);
        }
        .sidebar-nav a.active {
            background: rgba(200, 164, 78, 0.12);
            color: var(--primary);
            border: 1px solid rgba(200, 164, 78, 0.2);
        }
        .sidebar-nav a.active i {
            color: var(--primary);
        }

        .sidebar-footer {
            padding: 16px 20px;
            border-top: 1px solid var(--border);
            font-size: 0.8rem;
            color: var(--text-weak);
            text-align: center;
        }
        .sidebar-footer a {
            color: var(--text-weak);
        }
        .sidebar-footer a:hover {
            color: var(--primary);
        }

        /* ===== Main Content Area ===== */
        .main-content {
            margin-left: var(--nav-width);
            flex: 1;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* ===== Mobile Header ===== */
        .mobile-header {
            display: none;
            position: sticky;
            top: 0;
            z-index: 999;
            background: rgba(11, 11, 20, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            padding: 0 var(--spacing-sm);
            height: var(--header-height);
            align-items: center;
            justify-content: space-between;
        }
        .mobile-header .logo-text {
            font-size: 1.1rem;
        }
        .mobile-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            background: rgba(200, 164, 78, 0.08);
            color: var(--text);
            font-size: 1.3rem;
            transition: var(--transition);
            border: 1px solid transparent;
        }
        .mobile-toggle:hover {
            background: rgba(200, 164, 78, 0.15);
            border-color: rgba(200, 164, 78, 0.2);
        }
        .mobile-toggle.active {
            background: rgba(200, 164, 78, 0.15);
            border-color: rgba(200, 164, 78, 0.3);
        }

        /* ===== Hero ===== */
        .category-hero {
            position: relative;
            padding: var(--spacing-xl) var(--spacing-sm) var(--spacing-lg);
            background: var(--secondary);
            overflow: hidden;
            min-height: 340px;
            display: flex;
            align-items: center;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.25;
            z-index: 0;
            filter: saturate(0.7) brightness(0.6);
        }
        .category-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 11, 20, 0.88) 0%, rgba(26, 26, 46, 0.7) 100%);
            z-index: 1;
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
        }
        .category-hero .badge {
            margin-bottom: 16px;
            background: rgba(200, 164, 78, 0.2);
            border-color: rgba(200, 164, 78, 0.4);
            font-size: 0.85rem;
            padding: 6px 18px;
        }
        .category-hero h1 {
            font-size: clamp(2rem, 4.5vw, 3.2rem);
            margin-bottom: 16px;
            max-width: 720px;
        }
        .category-hero h1 span {
            color: var(--primary);
        }
        .category-hero p {
            font-size: 1.1rem;
            max-width: 600px;
            color: var(--text-secondary);
            margin-bottom: 24px;
        }
        .category-hero .btn {
            margin-top: 4px;
        }

        /* ===== Section Spacing ===== */
        .section-block {
            padding: var(--spacing-lg) var(--spacing-sm);
        }
        .section-block-alt {
            background: var(--bg-card);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        /* ===== Guide Intro ===== */
        .guide-intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-md);
            align-items: center;
        }
        .guide-intro-grid img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            width: 100%;
            height: auto;
            object-fit: cover;
            aspect-ratio: 16/10;
        }
        .guide-intro-text h3 {
            font-size: clamp(1.3rem, 2.5vw, 1.8rem);
            margin-bottom: 16px;
        }
        .guide-intro-text h3 span {
            color: var(--primary);
        }
        .guide-intro-text p {
            margin-bottom: 12px;
        }
        .guide-intro-text ul {
            margin-top: 16px;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .guide-intro-text ul li {
            display: flex;
            align-items: center;
            gap: 12px;
            color: var(--text-secondary);
            font-size: 0.95rem;
        }
        .guide-intro-text ul li i {
            color: var(--primary);
            font-size: 1rem;
            width: 20px;
            text-align: center;
        }

        /* ===== Guide Cards ===== */
        .guide-cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: var(--spacing-sm);
        }
        .guide-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
        }
        .guide-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-glow);
            border-color: rgba(200, 164, 78, 0.3);
        }
        .guide-card img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            border-radius: 0;
            transition: var(--transition);
        }
        .guide-card:hover img {
            transform: scale(1.03);
        }
        .guide-card-body {
            padding: 20px 20px 24px;
        }
        .guide-card-body .badge {
            margin-bottom: 10px;
            font-size: 0.7rem;
            padding: 3px 12px;
        }
        .guide-card-body h3 {
            font-size: 1.1rem;
            margin-bottom: 8px;
        }
        .guide-card-body p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 0;
        }
        .guide-card-body .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 14px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--primary);
        }
        .guide-card-body .card-link i {
            transition: var(--transition);
            font-size: 0.8rem;
        }
        .guide-card-body .card-link:hover i {
            transform: translateX(4px);
        }

        /* ===== Steps / Process ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: var(--spacing-sm);
        }
        .step-item {
            text-align: center;
            padding: 32px 16px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            transition: var(--transition);
            position: relative;
        }
        .step-item:hover {
            border-color: rgba(200, 164, 78, 0.3);
            box-shadow: var(--shadow-glow);
            transform: translateY(-4px);
        }
        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #0b0b14;
            font-size: 1.4rem;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .step-item h4 {
            font-size: 1.1rem;
            margin-bottom: 8px;
        }
        .step-item p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 0;
        }

        /* ===== Stats ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: var(--spacing-sm);
        }
        .stat-item {
            text-align: center;
            padding: 28px 16px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            transition: var(--transition);
        }
        .stat-item:hover {
            border-color: rgba(200, 164, 78, 0.25);
            box-shadow: var(--shadow-glow);
        }
        .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: var(--spacing-sm) auto 0;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(200, 164, 78, 0.2);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text);
            cursor: pointer;
            background: transparent;
            width: 100%;
            text-align: left;
            transition: var(--transition);
            border: none;
            gap: 12px;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question i {
            transition: var(--transition);
            font-size: 0.9rem;
            color: var(--text-weak);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 22px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 20px;
        }

        /* ===== CTA ===== */
        .cta-block {
            padding: var(--spacing-lg) var(--spacing-sm);
            text-align: center;
            background: var(--secondary);
            border-top: 1px solid var(--border);
            position: relative;
            overflow: hidden;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.1;
            z-index: 0;
            filter: brightness(0.4);
        }
        .cta-block .container {
            position: relative;
            z-index: 1;
        }
        .cta-block h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            margin-bottom: 12px;
        }
        .cta-block p {
            max-width: 560px;
            margin: 0 auto 24px;
            color: var(--text-secondary);
            font-size: 1.05rem;
        }
        .cta-block .btn-group {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--secondary);
            border-top: 1px solid var(--border);
            padding: var(--spacing-md) var(--spacing-sm) var(--spacing-sm);
            flex-shrink: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: var(--spacing-md);
            margin-bottom: var(--spacing-md);
        }
        .footer-brand .logo-text {
            font-size: 1.2rem;
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: var(--text-weak);
            max-width: 320px;
            margin-bottom: 0;
        }
        .footer h4 {
            font-size: 0.95rem;
            color: var(--text);
            margin-bottom: 14px;
            font-weight: 700;
        }
        .footer ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer ul li a {
            color: var(--text-weak);
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }
        .footer ul li a:hover {
            color: var(--primary);
        }
        .footer ul li a i {
            font-size: 0.85rem;
            width: 18px;
            text-align: center;
            color: var(--text-weak);
        }
        .footer ul li a:hover i {
            color: var(--primary);
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: var(--spacing-sm);
            text-align: center;
            font-size: 0.85rem;
            color: var(--text-weak);
        }
        .footer-bottom a {
            color: var(--text-weak);
        }
        .footer-bottom a:hover {
            color: var(--primary);
        }

        /* ===== Mobile Sidebar Overlay ===== */
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(4px);
            z-index: 998;
        }
        .sidebar-overlay.active {
            display: block;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .guide-cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-sm);
            }
        }

        @media (max-width: 768px) {
            .sidebar {
                transform: translateX(-100%);
                transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
                width: 280px;
                border-right: 1px solid var(--border);
            }
            .sidebar.open {
                transform: translateX(0);
            }

            .mobile-header {
                display: flex;
            }

            .main-content {
                margin-left: 0;
            }

            .guide-intro-grid {
                grid-template-columns: 1fr;
            }
            .guide-intro-grid img {
                aspect-ratio: 16/9;
            }

            .guide-cards-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .steps-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .step-item {
                padding: 24px 12px;
            }

            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-sm);
                text-align: center;
            }
            .footer-brand p {
                max-width: 100%;
            }

            .cta-block .btn-group {
                flex-direction: column;
                align-items: center;
            }

            .category-hero {
                padding: var(--spacing-lg) var(--spacing-sm);
                min-height: 280px;
            }
            .category-hero h1 {
                font-size: clamp(1.6rem, 6vw, 2.2rem);
            }
            .category-hero p {
                font-size: 1rem;
            }

            .section-block {
                padding: var(--spacing-md) var(--spacing-sm);
            }
        }

        @media (max-width: 520px) {
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-number {
                font-size: 1.8rem;
            }
            .sidebar {
                width: 100%;
                max-width: 300px;
            }
            .btn-lg {
                padding: 14px 32px;
                font-size: 0.95rem;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 0.95rem;
            }
            .faq-answer {
                padding: 0 16px;
                font-size: 0.9rem;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 16px;
            }
        }

        @media (max-width: 400px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-item {
                padding: 18px 10px;
            }
            .stat-number {
                font-size: 1.5rem;
            }
            .stat-label {
                font-size: 0.8rem;
            }
        }

        /* ===== Animations ===== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .animate-in {
            animation: fadeInUp 0.6s ease forwards;
        }
        .animate-in-delay-1 {
            animation-delay: 0.1s;
        }
        .animate-in-delay-2 {
            animation-delay: 0.2s;
        }
        .animate-in-delay-3 {
            animation-delay: 0.3s;
        }
        .animate-in-delay-4 {
            animation-delay: 0.4s;
        }