/* roulang page: index */
:root{
  --primary:#0c1d36;
  --primary-light:#17335c;
  --primary-dark:#071426;
  --accent:#c9a24b;
  --accent-light:#ddbb6b;
  --accent-dark:#a8853a;
  --bg:#f2f5fa;
  --bg-alt:#ffffff;
  --bg-deep:#0c1d36;
  --text:#1b2434;
  --text-muted:#64748b;
  --text-light:#94a3b8;
  --border:#e2e8f2;
  --radius-lg:20px;
  --radius-md:14px;
  --radius-sm:8px;
  --shadow-sm:0 2px 10px rgba(12,29,54,.06);
  --shadow-md:0 12px 36px rgba(12,29,54,.10);
  --shadow-lg:0 24px 60px rgba(12,29,54,.16);
  --transition:all .3s cubic-bezier(.25,.8,.25,1);
  --font-main:-apple-system,BlinkMacSystemFont,"Noto Sans SC","PingFang SC","Segoe UI",Roboto,"Helvetica Neue",Arial,"Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{
  font-family:var(--font-main);
  color:var(--text);
  background:var(--bg);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  min-height:100vh;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:var(--transition)}
ul,ol{list-style:none}
button,input,textarea{font-family:inherit;font-size:inherit}
.section{padding:88px 0}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}
.section-header{margin-bottom:48px}
.section-tag{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(201,162,75,.12);
  color:var(--accent-dark);
  font-size:13px;font-weight:600;
  padding:6px 16px;border-radius:999px;
  text-transform:uppercase;letter-spacing:.5px;
  margin-bottom:14px;
}
.section-header h2{
  font-size:clamp(26px,3.6vw,38px);
  font-weight:800;
  color:var(--primary);
  line-height:1.3;
  letter-spacing:-.5px;
}
.section-header p{
  color:var(--text-muted);
  font-size:16px;
  margin-top:12px;
  max-width:640px;
  line-height:1.8;
}
/* ===== 左侧导航 ===== */
.site-layout{display:flex;min-height:100vh}
.side-nav{
  width:264px;
  position:fixed;
  left:0;top:0;bottom:0;
  background:linear-gradient(180deg,var(--primary-dark) 0%,var(--primary) 55%,var(--primary-light) 100%);
  padding:28px 22px;
  z-index:1000;
  display:flex;
  flex-direction:column;
  transition:var(--transition);
  overflow-y:auto;
}
.side-nav::after{
  content:'';
  position:absolute;
  right:0;top:0;bottom:0;
  width:1px;
  background:linear-gradient(180deg,rgba(201,162,75,.4),rgba(255,255,255,.08),rgba(201,162,75,.4));
}
.brand-logo{
  display:flex;
  align-items:center;
  gap:12px;
  padding:8px 6px 24px;
  border-bottom:1px solid rgba(255,255,255,.1);
  margin-bottom:20px;
}
.brand-logo .logo-icon{
  width:42px;height:42px;
  background:var(--accent);
  border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:20px;
  box-shadow:0 4px 14px rgba(201,162,75,.35);
  flex-shrink:0;
}
.brand-logo .logo-text{
  color:#fff;font-weight:700;font-size:17px;line-height:1.3;letter-spacing:.3px;
}
.brand-logo .logo-text small{
  display:block;color:rgba(255,255,255,.55);font-weight:400;font-size:11px;letter-spacing:1px;margin-top:2px;
}
.nav-menu{flex:1;margin-top:12px}
.nav-menu .nav-group-title{
  color:rgba(255,255,255,.4);font-size:11px;font-weight:600;letter-spacing:2px;
  text-transform:uppercase;padding:10px 12px 8px;
}
.nav-menu a{
  display:flex;align-items:center;gap:12px;
  color:rgba(255,255,255,.78);
  padding:12px 14px;
  border-radius:12px;
  font-size:15px;
  font-weight:500;
  margin-bottom:4px;
  border-left:3px solid transparent;
  transition:var(--transition);
}
.nav-menu a i{
  width:20px;text-align:center;font-size:15px;color:rgba(255,255,255,.5);
  transition:var(--transition);
}
.nav-menu a:hover{
  background:rgba(255,255,255,.08);
  color:#fff;
  transform:translateX(4px);
}
.nav-menu a:hover i{color:var(--accent-light)}
.nav-menu a.active{
  background:rgba(201,162,75,.14);
  color:#fff;
  border-left-color:var(--accent);
  font-weight:600;
}
.nav-menu a.active i{color:var(--accent-light)}
.nav-foot{
  padding:16px 12px 0;
  border-top:1px solid rgba(255,255,255,.1);
  margin-top:20px;
}
.nav-foot .hot-line{
  display:flex;align-items:center;gap:10px;
  color:rgba(255,255,255,.6);font-size:13px;margin-bottom:8px;
}
.nav-foot .hot-line i{color:var(--accent-light)}
.nav-foot .foot-note{
  font-size:11px;color:rgba(255,255,255,.35);line-height:1.6;
}
.menu-toggle{
  display:none;
  background:var(--accent);
  border:none;color:#fff;
  width:40px;height:40px;border-radius:10px;
  font-size:16px;cursor:pointer;
  align-items:center;justify-content:center;
  transition:var(--transition);
}
.menu-toggle:hover{background:var(--accent-light)}
/* ===== 主内容 ===== */
.main-content{
  margin-left:264px;
  width:calc(100% - 264px);
  flex:1;
}
/* ===== Hero ===== */
.hero{
  position:relative;
  min-height:560px;
  background:linear-gradient(135deg,rgba(8,19,38,.92) 0%,rgba(12,29,54,.82) 50%,rgba(23,51,92,.66) 100%),url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  display:flex;
  align-items:center;
  color:#fff;
  overflow:hidden;
}
.hero::before{
  content:'';
  position:absolute;
  right:-80px;top:-80px;
  width:320px;height:320px;
  background:radial-gradient(circle,rgba(201,162,75,.28),transparent 70%);
  border-radius:50%;
}
.hero::after{
  content:'';
  position:absolute;
  left:50%;bottom:-60px;
  width:300px;height:300px;
  background:radial-gradient(circle,rgba(201,162,75,.14),transparent 70%);
  border-radius:50%;
}
.hero .container{position:relative;z-index:2;padding:80px 24px}
.hero-sub{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.12);
  backdrop-filter:blur(8px);
  border:1px solid rgba(255,255,255,.18);
  color:var(--accent-light);
  font-size:13px;font-weight:600;
  padding:8px 18px;border-radius:999px;
  margin-bottom:24px;
  letter-spacing:.5px;
}
.hero h1{
  font-size:clamp(32px,5vw,58px);
  font-weight:800;
  line-height:1.15;
  letter-spacing:-1px;
  margin-bottom:18px;
  background:linear-gradient(120deg,#fff 20%,var(--accent-light));
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
}
.hero-desc{
  font-size:17px;
  color:rgba(255,255,255,.82);
  max-width:560px;
  line-height:1.9;
  margin-bottom:32px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:12px 28px;
  border-radius:12px;
  font-weight:600;
  font-size:15px;
  cursor:pointer;
  border:2px solid transparent;
  transition:var(--transition);
  line-height:1.4;
  text-align:center;
}
.btn-accent{
  background:var(--accent);
  color:#fff;
  box-shadow:0 6px 20px rgba(201,162,75,.35);
}
.btn-accent:hover{
  background:var(--accent-dark);
  transform:translateY(-3px);
  box-shadow:0 12px 30px rgba(201,162,75,.4);
}
.btn-outline{
  background:transparent;
  border-color:rgba(255,255,255,.45);
  color:#fff;
}
.btn-outline:hover{
  border-color:var(--accent);
  color:var(--accent-light);
  background:rgba(201,162,75,.1);
  transform:translateY(-3px);
}
.hero-metrics{
  display:flex;gap:38px;margin-top:46px;
  flex-wrap:wrap;
}
.hero-metrics .metric-item .num{
  font-size:24px;font-weight:700;color:#fff;line-height:1.2;
}
.hero-metrics .metric-item .num span{color:var(--accent-light)}
.hero-metrics .metric-item .label{
  font-size:12px;color:rgba(255,255,255,.55);
  margin-top:4px;
  letter-spacing:.5px;
}
/* ===== 品牌介绍 ===== */
.intro-section{
  background:var(--bg);
  position:relative;
}
.intro-grid{
  display:grid;
  grid-template-columns:1.05fr 1fr;
  gap:56px;
  align-items:center;
}
.intro-media{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-lg);
}
.intro-media img{width:100%;height:100%;object-fit:cover;min-height:340px}
.intro-media::after{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(0deg,rgba(12,29,54,.4),transparent 40%);
}
.intro-media .media-badge{
  position:absolute;left:20px;bottom:20px;z-index:2;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(8px);
  color:var(--primary);
  font-size:13px;font-weight:600;
  padding:10px 18px;border-radius:999px;
  display:flex;align-items:center;gap:8px;
  box-shadow:var(--shadow-md);
}
.intro-content .lead{
  font-size:17px;color:var(--text-muted);
  line-height:1.9;margin-bottom:24px;
}
.intro-points{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:28px}
.point-item{
  background:var(--bg-alt);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  padding:18px 20px;
  transition:var(--transition);
}
.point-item:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-md);
  border-color:rgba(201,162,75,.4);
}
.point-item i{
  width:38px;height:38px;
  background:var(--primary);color:var(--accent-light);
  border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  font-size:15px;margin-bottom:10px;
}
.point-item h4{font-size:14px;font-weight:700;color:var(--primary);margin-bottom:4px}
.point-item p{font-size:13px;color:var(--text-muted);line-height:1.6}
/* ===== 分类入口 ===== */
.cat-section{
  background:var(--bg-alt);
}
.cat-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:32px;
}
.cat-card{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  min-height:300px;
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
  padding:36px;
  color:#fff;
  box-shadow:var(--shadow-md);
  transition:var(--transition);
  background-size:cover;
  background-position:center;
}
.cat-card::before{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(200deg,rgba(8,19,38,.2) 0%,rgba(8,19,38,.55) 55%,rgba(8,19,38,.85) 100%);
  transition:var(--transition);
}
.cat-card:hover::before{
  background:linear-gradient(200deg,rgba(8,19,38,.15) 0%,rgba(8,19,38,.45) 55%,rgba(8,19,38,.8) 100%);
}
.cat-card:hover{
  transform:translateY(-8px);
  box-shadow:var(--shadow-lg);
}
.cat-card>*{position:relative;z-index:2}
.cat-card .cat-icon{
  width:52px;height:52px;
  background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.25);
  backdrop-filter:blur(8px);
  border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  font-size:20px;color:var(--accent-light);
  margin-bottom:20px;
}
.cat-card h3{font-size:24px;font-weight:700;margin-bottom:10px;letter-spacing:.3px}
.cat-card p{font-size:14px;color:rgba(255,255,255,.78);line-height:1.7;max-width:420px;margin-bottom:22px}
.cat-card .cat-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;
  color:var(--accent-light);
  padding-bottom:4px;
  border-bottom:2px solid rgba(201,162,75,.4);
  width:fit-content;
  transition:var(--transition);
}
.cat-card .cat-link:hover{gap:14px;border-color:var(--accent)}
/* ===== 资讯列表 ===== */
.news-section{
  background:var(--bg);
}
.news-grid{
  display:grid;
  grid-template-columns:1fr 1.4fr;
  gap:40px;
  align-items:start;
}
.news-feature{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  background:var(--primary);
  min-height:320px;
  display:flex;
  align-items:flex-end;
  box-shadow:var(--shadow-md);
}
.news-feature img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.55;
}
.news-feature::after{
  content:'';
  position:absolute;inset:0;
  background:linear-gradient(0deg,rgba(8,19,38,.85),transparent 60%);
}
.news-feature .feature-content{
  position:relative;z-index:2;
  padding:30px;
  color:#fff;
}
.news-feature .badge{
  display:inline-block;
  background:var(--accent);
  color:#fff;
  font-size:11px;font-weight:700;
  padding:4px 12px;border-radius:999px;
  margin-bottom:12px;
  letter-spacing:.5px;
}
.news-feature h3{font-size:22px;font-weight:700;line-height:1.4;margin-bottom:8px}
.news-feature p{font-size:13px;color:rgba(255,255,255,.75);line-height:1.7;margin-bottom:14px}
.news-feature .feature-meta{font-size:12px;color:rgba(255,255,255,.55);display:flex;gap:18px;align-items:center}
.news-list{
  display:flex;
  flex-direction:column;
  gap:14px;
}
.news-item{
  display:flex;
  gap:18px;
  background:var(--bg-alt);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  padding:18px 20px;
  transition:var(--transition);
  align-items:flex-start;
}
.news-item:hover{
  box-shadow:var(--shadow-md);
  transform:translateX(6px);
  border-color:rgba(201,162,75,.35);
}
.news-item .news-num{
  font-size:20px;font-weight:800;
  color:var(--border);
  font-style:italic;
  min-width:26px;
  line-height:1.2;
  transition:var(--transition);
  font-family:Georgia,serif;
}
.news-item:hover .news-num{color:var(--accent)}
.news-item .news-body{flex:1;min-width:0}
.news-item h4{
  font-size:15px;font-weight:600;
  color:var(--text);
  line-height:1.5;
  margin-bottom:6px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-item h4 a:hover{color:var(--accent-dark)}
.news-item .news-desc{
  font-size:13px;color:var(--text-muted);
  line-height:1.6;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-bottom:8px;
}
.news-item .news-meta{
  display:flex;gap:14px;align-items:center;
  font-size:12px;color:var(--text-light);
}
.news-item .news-meta .cat{
  background:rgba(201,162,75,.1);color:var(--accent-dark);
  padding:2px 10px;border-radius:999px;
  font-weight:600;
}
.news-empty{
  background:var(--bg-alt);
  border:1px dashed var(--border);
  border-radius:var(--radius-md);
  padding:40px 24px;
  text-align:center;
  color:var(--text-muted);
  font-size:15px;
}
/* ===== 数据统计 ===== */
.stats-section{
  background:linear-gradient(135deg,var(--primary-dark),var(--primary-light)),url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  background-blend-mode:overlay;
  padding:80px 0;
  color:#fff;
  position:relative;
  overflow:hidden;
}
.stats-section::before{
  content:'';
  position:absolute;
  left:-50px;bottom:-50px;
  width:220px;height:220px;
  background:radial-gradient(circle,rgba(201,162,75,.25),transparent 70%);
  border-radius:50%;
}
.stats-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:32px;
  text-align:center;
  position:relative;z-index:2;
}
.stat-item{
  padding:28px 16px;
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius-lg);
  background:rgba(255,255,255,.06);
  backdrop-filter:blur(8px);
  transition:var(--transition);
}
.stat-item:hover{
  background:rgba(255,255,255,.1);
  transform:translateY(-6px);
}
.stat-item .stat-num{
  font-size:38px;font-weight:800;
  color:var(--accent-light);
  line-height:1.2;
  font-family:Georgia,serif;
}
.stat-item .stat-label{
  font-size:14px;color:rgba(255,255,255,.68);
  margin-top:8px;
  letter-spacing:.5px;
}
/* ===== 服务卡片 ===== */
.service-section{background:var(--bg-alt)}
.service-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.service-card{
  background:var(--bg);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:32px 26px;
  transition:var(--transition);
  position:relative;
  overflow:hidden;
}
.service-card::before{
  content:'';
  position:absolute;
  top:0;left:0;right:0;height:4px;
  background:linear-gradient(90deg,var(--accent),var(--accent-light));
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .4s ease;
}
.service-card:hover::before{transform:scaleX(1)}
.service-card:hover{
  transform:translateY(-8px);
  box-shadow:var(--shadow-lg);
  border-color:rgba(201,162,75,.25);
}
.service-card .service-icon{
  width:56px;height:56px;
  background:var(--primary);
  color:var(--accent-light);
  border-radius:16px;
  display:flex;align-items:center;justify-content:center;
  font-size:22px;
  margin-bottom:20px;
  transition:var(--transition);
}
.service-card:hover .service-icon{
  background:var(--accent);
  color:#fff;
  transform:rotate(-6deg) scale(1.05);
}
.service-card h3{font-size:18px;font-weight:700;color:var(--primary);margin-bottom:10px}
.service-card p{font-size:14px;color:var(--text-muted);line-height:1.7}
/* ===== 流程 ===== */
.process-section{background:var(--bg)}
.process-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:28px;
  position:relative;
}
.process-grid::before{
  content:'';
  position:absolute;
  top:30px;left:10%;right:10%;
  height:2px;
  background:linear-gradient(90deg,var(--accent),rgba(201,162,75,.25),var(--accent));
  opacity:.4;
}
.process-step{
  text-align:center;
  position:relative;
  padding:0 10px;
}
.process-step .step-num{
  width:60px;height:60px;
  background:var(--bg-alt);
  color:var(--accent-dark);
  border:2px solid var(--accent);
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:20px;font-weight:700;
  margin:0 auto 20px;
  position:relative;z-index:2;
  box-shadow:0 0 0 6px var(--bg);
  transition:var(--transition);
}
.process-step:hover .step-num{
  background:var(--accent);
  color:#fff;
  box-shadow:0 0 0 6px var(--bg),0 8px 24px rgba(201,162,75,.35);
}
.process-step h4{font-size:16px;font-weight:700;color:var(--primary);margin-bottom:8px}
.process-step p{font-size:13px;color:var(--text-muted);line-height:1.7}
/* ===== FAQ ===== */
.faq-section{background:var(--bg-alt)}
.faq-wrap{
  max-width:860px;
  margin:0 auto;
  display:flex;
  flex-direction:column;
  gap:14px;
}
.faq-item{
  background:var(--bg);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  overflow:hidden;
  transition:var(--transition);
}
.faq-item:hover{
  border-color:rgba(201,162,75,.3);
  box-shadow:var(--shadow-sm);
}
.faq-item details>summary{
  list-style:none;
  cursor:pointer;
  padding:22px 28px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  font-size:16px;
  font-weight:600;
  color:var(--primary);
  transition:var(--transition);
}
.faq-item details>summary::-webkit-details-marker{display:none}
.faq-item details>summary::after{
  content:'\f078';
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  color:var(--accent);
  font-size:13px;
  transition:var(--transition);
  flex-shrink:0;
}
.faq-item details[open]>summary::after{
  transform:rotate(180deg);
}
.faq-item details[open]>summary{
  color:var(--accent-dark);
}
.faq-answer{
  padding:0 28px 22px;
  color:var(--text-muted);
  font-size:14px;
  line-height:1.85;
  border-top:1px dashed var(--border);
  margin:0 28px 0;
  padding-top:16px;
}
/* ===== CTA ===== */
.cta-section{
  background:linear-gradient(135deg,var(--primary-dark) 0%,var(--primary) 60%,var(--primary-light) 100%);
  padding:72px 0;
  position:relative;
  overflow:hidden;
}
.cta-section::before{
  content:'';
  position:absolute;
  right:-30px;top:-30px;
  width:200px;height:200px;
  background:radial-gradient(circle,rgba(201,162,75,.3),transparent 70%);
  border-radius:50%;
}
.cta-box{
  max-width:760px;
  margin:0 auto;
  text-align:center;
  color:#fff;
  position:relative;z-index:2;
}
.cta-box h2{
  font-size:clamp(26px,3.5vw,38px);
  font-weight:800;
  margin-bottom:16px;
}
.cta-box h2 span{
  color:var(--accent-light);
}
.cta-box p{
  font-size:16px;
  color:rgba(255,255,255,.75);
  line-height:1.8;
  margin-bottom:32px;
}
.cta-actions{
  display:flex;flex-wrap:wrap;gap:16px;
  justify-content:center;
}
.cta-note{
  margin-top:22px;
  font-size:12px;
  color:rgba(255,255,255,.4);
  letter-spacing:.5px;
}
/* ===== Footer ===== */
.main-footer{
  background:var(--primary-dark);
  color:rgba(255,255,255,.7);
  padding:60px 0 30px;
  position:relative;
}
.main-footer::before{
  content:'';
  position:absolute;
  top:0;left:0;right:0;
  height:3px;
  background:linear-gradient(90deg,var(--accent),var(--primary-light),var(--accent));
  opacity:.6;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr;
  gap:48px;
  margin-bottom:40px;
}
.footer-brand .footer-logo{
  font-size:18px;font-weight:700;
  color:#fff;
  display:flex;align-items:center;gap:10px;
  margin-bottom:16px;
}
.footer-brand .footer-logo i{
  color:var(--accent);
  font-size:22px;
}
.footer-brand p{
  font-size:13px;
  color:rgba(255,255,255,.5);
  line-height:1.8;
  max-width:340px;
}
.footer-col h4{
  color:#fff;
  font-size:15px;
  font-weight:600;
  margin-bottom:18px;
  position:relative;
  padding-bottom:10px;
}
.footer-col h4::after{
  content:'';
  position:absolute;
  left:0;bottom:0;
  width:28px;height:2px;
  background:var(--accent);
  border-radius:2px;
}
.footer-col a{
  display:block;
  color:rgba(255,255,255,.55);
  font-size:14px;
  padding:6px 0;
  transition:var(--transition);
}
.footer-col a:hover{
  color:var(--accent-light);
  padding-left:6px;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding-top:24px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
  gap:12px;
  font-size:13px;
  color:rgba(255,255,255,.4);
}
.footer-bottom span a{color:rgba(255,255,255,.6)}
/* ===== 响应式 ===== */
@media (max-width:1024px){
  .service-grid{grid-template-columns:repeat(2,1fr)}
  .process-grid{grid-template-columns:repeat(2,1fr);gap:36px 20px}
  .process-grid::before{display:none}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .cat-grid{grid-template-columns:1fr}
  .section{padding:68px 0}
}
@media (max-width:900px){
  .site-layout{flex-direction:column}
  .side-nav{
    position:relative;
    width:100%;
    height:auto;
    flex-direction:row;
    align-items:center;
    justify-content:space-between;
    padding:14px 20px;
    z-index:100;
  }
  .side-nav::after{display:none}
  .brand-logo{
    padding:0;border-bottom:none;margin-bottom:0;
    flex-shrink:0;
  }
  .brand-logo .logo-icon{width:36px;height:36px;font-size:16px;border-radius:10px}
  .brand-logo .logo-text{font-size:15px}
  .nav-menu{
    display:none;
    position:absolute;
    top:100%;left:0;right:0;
    background:var(--primary);
    padding:14px 20px 20px;
    flex-direction:column;
    box-shadow:var(--shadow-lg);
    margin-top:0;
  }
  .nav-menu.open{display:flex}
  .nav-menu .nav-group-title{display:none}
  .nav-menu a{
    padding:12px 14px;
    font-size:15px;
  }
  .nav-foot{display:none}
  .menu-toggle{display:flex}
  .main-content{margin-left:0;width:100%}
  .news-grid{grid-template-columns:1fr}
  .intro-grid{grid-template-columns:1fr;gap:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:640px){
  .hero{min-height:500px}
  .hero .container{padding:60px 20px}
  .hero-actions{flex-direction:column;width:100%}
  .hero-actions .btn{width:100%;justify-content:center}
  .hero-metrics{gap:24px}
  .service-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .stat-item .stat-num{font-size:28px}
  .process-grid{grid-template-columns:1fr;gap:30px}
  .intro-points{grid-template-columns:1fr}
  .cat-card{padding:24px;min-height:240px}
  .news-feature{min-height:240px}
  .news-feature .feature-content{padding:20px}
  .news-item{padding:14px 16px;gap:12px}
  .news-item .news-num{font-size:16px;min-width:20px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;text-align:center}
  .section{padding:56px 0}
  .faq-item details>summary{padding:18px 20px;font-size:15px}
}
@media (max-width:480px){
  .brand-logo .logo-text small{display:none}
  .menu-toggle{width:36px;height:36px}
  .stats-grid{grid-template-columns:1fr 1fr}
  .stat-item{padding:20px 10px}
  .stat-item .stat-num{font-size:24px}
  .hero h1{font-size:32px}
  .hero-desc{font-size:15px}
  .section-header h2{font-size:24px}
}

/* roulang page: category1 */
:root {
  --primary: #e0453a;
  --primary-dark: #c9382f;
  --primary-light: #ffeceb;
  --accent: #ffb800;
  --dark: #111828;
  --dark-light: #1c2538;
  --bg: #f4f6fb;
  --bg-alt: #ffffff;
  --text: #1c2333;
  --muted: #6b7a90;
  --border: #e5eaf0;
  --radius: 18px;
  --radius-sm: 12px;
  --shadow-sm: 0 4px 14px rgba(17, 24, 40, 0.06);
  --shadow-md: 0 12px 30px rgba(17, 24, 40, 0.1);
  --shadow-lg: 0 24px 50px rgba(17, 24, 40, 0.16);
  --sidebar-width: 280px;
  --transition: all 0.3s ease;
}
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; transition: var(--transition); }
img { max-width: 100%; display: block; height: auto; }
button, input, textarea { font-family: inherit; }
.container-fluent { max-width: 1400px; margin: 0 auto; padding: 0 40px; }
.pill-badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--primary-light); color: var(--primary);
  font-size: 13px; font-weight: 600; padding: 6px 14px; border-radius: 100px;
}
.section-title-sub { color: var(--primary); font-weight: 700; font-size: 14px; letter-spacing: 2px; text-transform: uppercase; }
.section-title { font-size: 34px; font-weight: 800; line-height: 1.3; margin: 10px 0 16px; color: var(--text); }
.section-desc { color: var(--muted); font-size: 16px; max-width: 680px; line-height: 1.7; }

/* ===== 左侧导航 ===== */
.sidebar {
  position: fixed; top: 0; left: 0; width: var(--sidebar-width); height: 100vh;
  background: linear-gradient(180deg, #161d30 0%, #0f1420 100%);
  z-index: 60; padding: 34px 24px 24px; display: flex; flex-direction: column;
  overflow-y: auto;
}
.sidebar .brand-logo {
  display: flex; align-items: center; gap: 14px;
  font-size: 20px; font-weight: 800; color: #fff; letter-spacing: 1px;
  padding: 6px 6px 22px; border-bottom: 1px solid rgba(255,255,255,0.08);
}
.sidebar .brand-logo i {
  width: 44px; height: 44px; border-radius: 12px; background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex; align-items: center; justify-content: center; font-size: 20px; color: #fff;
  box-shadow: 0 8px 20px rgba(224,69,58,0.35);
}
.sidebar .brand-logo span { font-size: 17px; line-height: 1.3; }
.nav-menu { display: flex; flex-direction: column; gap: 6px; margin-top: 30px; }
.nav-group-title {
  font-size: 11px; font-weight: 700; letter-spacing: 2px; color: rgba(255,255,255,0.4);
  text-transform: uppercase; padding: 0 12px 8px;
}
.nav-menu a {
  display: flex; align-items: center; gap: 12px; color: rgba(255,255,255,0.72);
  font-size: 15px; font-weight: 500; padding: 13px 16px; border-radius: 14px;
  transition: var(--transition); border: 1px solid transparent;
}
.nav-menu a i { width: 20px; text-align: center; font-size: 16px; color: rgba(255,255,255,0.4); transition: var(--transition); }
.nav-menu a:hover { background: rgba(255,255,255,0.07); color: #fff; transform: translateX(4px); }
.nav-menu a:hover i { color: var(--accent); }
.nav-menu a.active {
  background: linear-gradient(135deg, var(--primary) 0%, #ff6a5e 100%);
  color: #fff; box-shadow: 0 10px 24px rgba(224,69,58,0.35); border: none;
}
.nav-menu a.active i { color: #fff; }
.sidebar .side-contact {
  margin-top: auto; background: rgba(255,255,255,0.05); border-radius: 16px;
  padding: 20px 18px; border: 1px solid rgba(255,255,255,0.08);
}
.sidebar .side-contact h4 { color: #fff; font-size: 14px; margin: 0 0 8px; }
.sidebar .side-contact p { color: rgba(255,255,255,0.55); font-size: 13px; line-height: 1.6; margin: 0; }

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

/* 移动端顶栏 */
.mobile-topbar {
  display: none; position: fixed; top: 0; left: 0; right: 0; height: 64px;
  background: rgba(17,24,40,0.96); backdrop-filter: blur(16px); z-index: 80;
  align-items: center; justify-content: space-between; padding: 0 20px;
}
.mobile-topbar .mobile-logo { color: #fff; font-size: 16px; font-weight: 800; display: flex; align-items: center; gap: 10px; }
.mobile-topbar .mobile-logo i { color: var(--accent); }
.mobile-menu-btn {
  width: 42px; height: 42px; border-radius: 12px; border: 1px solid rgba(255,255,255,0.15);
  background: rgba(255,255,255,0.08); color: #fff; font-size: 18px; cursor: pointer;
  display: flex; align-items: center; justify-content: center; transition: var(--transition);
}
.mobile-menu-btn:hover { background: var(--primary); }

/* ===== HERO ===== */
.page-hero {
  position: relative; min-height: 420px; display: flex; align-items: center;
  background: linear-gradient(92deg, rgba(15,20,32,0.94) 0%, rgba(15,20,32,0.78) 48%, rgba(224,69,58,0.35) 100%),
    url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
  color: #fff; padding: 110px 0 80px; margin-bottom: 0;
}
.page-hero .hero-breadcrumb { display: flex; align-items: center; gap: 10px; font-size: 14px; color: rgba(255,255,255,0.65); margin-bottom: 22px; }
.page-hero .hero-breadcrumb a { color: rgba(255,255,255,0.8); }
.page-hero .hero-breadcrumb a:hover { color: var(--accent); }
.page-hero .hero-breadcrumb i { font-size: 12px; }
.page-hero .hero-title { font-size: 46px; font-weight: 900; line-height: 1.2; margin: 0 0 20px; }
.page-hero .hero-title em { font-style: normal; color: var(--accent); }
.page-hero .hero-desc { font-size: 17px; color: rgba(255,255,255,0.82); line-height: 1.8; max-width: 640px; margin-bottom: 36px; }
.hero-btns { display: flex; flex-wrap: wrap; gap: 16px; }
.btn {
  display: inline-flex; align-items: center; gap: 10px; font-weight: 700; font-size: 15px;
  padding: 14px 30px; border-radius: 100px; transition: var(--transition); cursor: pointer; border: 2px solid transparent;
}
.btn-primary { background: linear-gradient(135deg, var(--primary), #ff6a5e); color: #fff; box-shadow: 0 10px 28px rgba(224,69,58,0.35); }
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 16px 36px rgba(224,69,58,0.45); }
.btn-outline { border-color: rgba(255,255,255,0.7); color: #fff; background: transparent; }
.btn-outline:hover { background: rgba(255,255,255,0.12); border-color: #fff; transform: translateY(-3px); }
.hero-stats { display: flex; flex-wrap: wrap; gap: 36px; margin-top: 50px; }
.hero-stats .stat-item { position: relative; padding-left: 18px; }
.hero-stats .stat-item::before { content: ''; position: absolute; left: 0; top: 6px; bottom: 6px; width: 3px; border-radius: 4px; background: var(--accent); }
.hero-stats .stat-num { font-size: 28px; font-weight: 900; color: #fff; line-height: 1.2; }
.hero-stats .stat-label { font-size: 13px; color: rgba(255,255,255,0.65); }

/* ===== 通用区块 ===== */
.section-block { padding: 90px 0; }
.section-block-alt { background: #fff; }
.section-block-dark { background: var(--dark); }
.section-head { margin-bottom: 48px; }
.section-head.center { text-align: center; }
.section-head.center .section-desc { margin-left: auto; margin-right: auto; }

/* 图文介绍 */
.intro-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 60px; align-items: center; }
.intro-media { position: relative; border-radius: 24px; overflow: hidden; box-shadow: var(--shadow-lg); }
.intro-media img { width: 100%; height: 430px; object-fit: cover; }
.intro-media::after { content: ''; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(15,20,32,0.15), transparent 40%); }
.intro-badge {
  position: absolute; left: 22px; bottom: 22px; z-index: 2; background: rgba(255,255,255,0.94);
  padding: 12px 20px; border-radius: 14px; display: flex; align-items: center; gap: 12px;
  box-shadow: 0 12px 30px rgba(0,0,0,0.2); backdrop-filter: blur(8px);
}
.intro-badge i { font-size: 26px; color: var(--primary); }
.intro-badge span { font-weight: 800; font-size: 15px; color: var(--text); }
.intro-badge small { display: block; font-size: 12px; color: var(--muted); font-weight: 400; }
.intro-content h2 { font-size: 34px; font-weight: 800; margin: 14px 0 18px; line-height: 1.35; }
.intro-content p { color: var(--muted); line-height: 1.85; margin-bottom: 16px; }
.feature-list { list-style: none; padding: 0; margin: 26px 0 36px; display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.feature-list li { display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 15px; color: var(--text); }
.feature-list li i { color: var(--primary); }

/* 数据面板 */
.stats-panel {
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-light) 100%);
  border-radius: 26px; padding: 52px 48px; margin-top: 90px; position: relative; overflow: hidden;
}
.stats-panel::before {
  content: ''; position: absolute; right: -60px; top: -60px; width: 260px; height: 260px;
  border-radius: 50%; background: radial-gradient(circle, rgba(224,69,58,0.35), transparent 70%);
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; position: relative; z-index: 2; }
.stats-grid .item { text-align: center; padding: 24px 10px; border-radius: 18px; background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.08); }
.stats-grid .item i { font-size: 30px; background: linear-gradient(135deg, var(--accent), #ff6a5e); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; margin-bottom: 10px; }
.stats-grid .item .num { font-size: 32px; font-weight: 900; color: #fff; line-height: 1.2; }
.stats-grid .item .label { font-size: 14px; color: rgba(255,255,255,0.6); }

/* 步骤时间线 */
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; counter-reset: step; }
.step-card {
  background: #fff; border-radius: var(--radius); padding: 30px 26px; box-shadow: var(--shadow-sm);
  border: 1px solid var(--border); transition: var(--transition); position: relative; overflow: hidden;
}
.step-card::before { content: counter(step); counter-increment: step; position: absolute; top: 20px; right: 20px; font-size: 52px; font-weight: 900; color: rgba(17,24,40,0.05); line-height: 1; }
.step-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-md); border-color: var(--primary); }
.step-icon { width: 60px; height: 60px; border-radius: 16px; background: var(--primary-light); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 24px; margin-bottom: 20px; transition: var(--transition); }
.step-card:hover .step-icon { background: var(--primary); color: #fff; }
.step-card h3 { font-size: 19px; font-weight: 800; margin: 0 0 10px; }
.step-card p { font-size: 14px; color: var(--muted); line-height: 1.7; margin: 0; }

/* 学习网格 */
.learn-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.learn-card {
  background: #fff; border-radius: var(--radius); padding: 32px 28px;
  border: 1px solid var(--border); box-shadow: var(--shadow-sm); transition: var(--transition); position: relative;
}
.learn-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: var(--primary); }
.learn-card .learn-icon { width: 52px; height: 52px; border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 22px; background: var(--primary-light); color: var(--primary); margin-bottom: 18px; }
.learn-card:nth-child(2) .learn-icon { background: #fff4d6; color: #d99b00; }
.learn-card:nth-child(3) .learn-icon { background: #e1f0ff; color: #1d7fd6; }
.learn-card h3 { font-size: 18px; font-weight: 800; margin: 0 0 8px; }
.learn-card p { font-size: 14px; color: var(--muted); line-height: 1.7; margin: 0 0 18px; }
.learn-card .tag-row { display: flex; flex-wrap: wrap; gap: 8px; }
.learn-card .tag { font-size: 12px; font-weight: 600; background: var(--bg); color: var(--muted); padding: 5px 12px; border-radius: 100px; }
.learn-card .tag.hot { background: var(--primary-light); color: var(--primary); }

/* 榜单 */
.rank-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.rank-list { list-style: none; margin: 0; padding: 0; }
.rank-item {
  display: flex; align-items: center; gap: 18px; background: #fff; border: 1px solid var(--border);
  border-radius: 16px; padding: 16px 20px; margin-bottom: 12px; transition: var(--transition);
}
.rank-item:hover { box-shadow: var(--shadow-md); transform: translateX(6px); border-color: var(--primary); }
.rank-badge { width: 42px; height: 42px; border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 18px; color: #fff; flex-shrink: 0; }
.rank-badge.gold { background: linear-gradient(135deg, #f5c842, #d99b00); box-shadow: 0 6px 16px rgba(217,155,0,0.3); }
.rank-badge.silver { background: linear-gradient(135deg, #c9d1de, #93a0b3); box-shadow: 0 6px 16px rgba(147,160,179,0.3); }
.rank-badge.bronze { background: linear-gradient(135deg, #e09a6d, #c4703a); box-shadow: 0 6px 16px rgba(196,112,58,0.3); }
.rank-badge.normal { background: var(--dark-light); font-size: 14px; font-weight: 800; }
.rank-info { flex: 1; }
.rank-info h4 { font-size: 16px; font-weight: 700; margin: 0 0 3px; }
.rank-info p { font-size: 13px; color: var(--muted); margin: 0; }
.rank-meta { text-align: right; color: var(--muted); font-size: 13px; flex-shrink: 0; }
.rank-meta i { color: var(--accent); margin-right: 3px; }
.rank-media { border-radius: 24px; overflow: hidden; box-shadow: var(--shadow-lg); position: relative; }
.rank-media img { width: 100%; height: 460px; object-fit: cover; }
.rank-media .rank-float {
  position: absolute; bottom: 20px; left: 20px; right: 20px; background: rgba(17,24,40,0.85);
  backdrop-filter: blur(10px); border-radius: 16px; padding: 18px 22px; color: #fff;
  display: flex; align-items: center; justify-content: space-between;
}
.rank-float .rf-title { font-weight: 700; font-size: 15px; }
.rank-float .rf-desc { font-size: 12px; color: rgba(255,255,255,0.6); margin-top: 2px; }
.rank-float .rf-btn { padding: 8px 18px; border-radius: 100px; background: var(--primary); color: #fff; font-size: 13px; font-weight: 700; }

/* 内容精选卡片 */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.feature-card { background: #fff; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); box-shadow: var(--shadow-sm); transition: var(--transition); }
.feature-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-md); }
.feature-card .fc-img { position: relative; overflow: hidden; }
.feature-card .fc-img img { width: 100%; height: 220px; object-fit: cover; transition: transform 0.5s ease; }
.feature-card:hover .fc-img img { transform: scale(1.06); }
.feature-card .fc-tag { position: absolute; top: 16px; left: 16px; background: rgba(255,255,255,0.94); color: var(--primary); font-size: 12px; font-weight: 700; padding: 6px 14px; border-radius: 100px; }
.feature-card .fc-body { padding: 24px; }
.feature-card .fc-meta { display: flex; align-items: center; gap: 14px; font-size: 13px; color: var(--muted); margin-bottom: 10px; }
.feature-card .fc-meta i { color: var(--primary); }
.feature-card h3 { font-size: 18px; font-weight: 800; margin: 0 0 10px; line-height: 1.4; }
.feature-card p { color: var(--muted); font-size: 14px; line-height: 1.7; margin: 0; }

/* FAQ */
.faq-wrap { max-width: 860px; margin: 0 auto; }
.accordion { background: transparent; margin: 0; }
.accordion-item { border-radius: 16px; overflow: hidden; margin-bottom: 12px; border: 1px solid var(--border) !important; box-shadow: var(--shadow-sm); }
.accordion-title { background: #fff !important; border: none !important; color: var(--text) !important; font-size: 16px !important; font-weight: 700 !important; padding: 22px 26px !important; transition: var(--transition); }
.accordion-title::before { color: var(--primary) !important; font-weight: 900; }
.accordion-item.is-active > .accordion-title { background: var(--primary-light) !important; color: var(--primary) !important; }
.accordion-content { background: #fff; border: none !important; color: var(--muted) !important; font-size: 14px; line-height: 1.8; padding: 0 26px 24px !important; }

/* CTA */
.cta-box {
  background: linear-gradient(120deg, rgba(15,20,32,0.94) 0%, rgba(224,69,58,0.88) 100%),
    url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
  border-radius: 28px; padding: 64px 56px; text-align: center; color: #fff; position: relative; overflow: hidden;
}
.cta-box::before {
  content: ''; position: absolute; width: 320px; height: 320px; border-radius: 50%;
  background: radial-gradient(circle, rgba(255,184,0,0.25), transparent 70%); top: -80px; right: -80px;
}
.cta-box h2 { font-size: 32px; font-weight: 900; margin: 0 0 16px; }
.cta-box p { font-size: 16px; color: rgba(255,255,255,0.8); max-width: 600px; margin: 0 auto 36px; }

/* 页脚 */
.main-footer { background: var(--dark); color: rgba(255,255,255,0.7); padding: 70px 0 30px; margin-top: auto; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 50px; padding-bottom: 46px; border-bottom: 1px solid rgba(255,255,255,0.08); }
.footer-logo { display: flex; align-items: center; gap: 12px; font-size: 20px; font-weight: 800; color: #fff; margin-bottom: 16px; }
.footer-logo i { width: 40px; height: 40px; border-radius: 12px; background: linear-gradient(135deg, var(--primary), var(--accent)); display: flex; align-items: center; justify-content: center; font-size: 18px; color: #fff; }
.footer-brand p { font-size: 14px; line-height: 1.8; color: rgba(255,255,255,0.5); max-width: 360px; }
.footer-col h4 { color: #fff; font-size: 15px; font-weight: 700; margin: 0 0 18px; }
.footer-col a { display: block; color: rgba(255,255,255,0.55); font-size: 14px; padding: 6px 0; transition: var(--transition); }
.footer-col a:hover { color: var(--accent); transform: translateX(4px); }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; padding-top: 28px; font-size: 13px; color: rgba(255,255,255,0.35); flex-wrap: wrap; gap: 10px; }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  :root { --sidebar-width: 240px; }
  .sidebar { padding: 24px 18px; }
  .nav-menu a { font-size: 14px; padding: 11px 14px; }
  .section-block { padding: 70px 0; }
  .intro-grid { gap: 40px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .learn-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .rank-wrap { grid-template-columns: 1fr; }
  .container-fluent { padding: 0 28px; }
}
@media (max-width: 767px) {
  .mobile-topbar { display: flex; }
  .sidebar { transform: translateX(-100%); transition: transform 0.35s ease; box-shadow: 20px 0 60px rgba(0,0,0,0.3); }
  body.menu-open .sidebar { transform: translateX(0); }
  .main-content { margin-left: 0; padding-top: 64px; }
  .container-fluent { padding: 0 20px; }
  .page-hero { min-height: auto; padding: 90px 0 60px; }
  .page-hero .hero-title { font-size: 32px; }
  .page-hero .hero-desc { font-size: 15px; }
  .hero-stats { gap: 20px; margin-top: 34px; }
  .hero-stats .stat-num { font-size: 22px; }
  .section-block { padding: 56px 0; }
  .section-title { font-size: 27px; }
  .intro-grid { grid-template-columns: 1fr; }
  .intro-media img { height: 300px; }
  .stats-panel { padding: 34px 24px; }
  .steps-grid { grid-template-columns: 1fr; }
  .learn-grid { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .cta-box { padding: 44px 24px; }
  .cta-box h2 { font-size: 26px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}
@media (max-width: 520px) {
  .hero-btns .btn { width: 100%; justify-content: center; }
  .stats-grid { grid-template-columns: 1fr; }
  .feature-list { grid-template-columns: 1fr; }
  .brand-logo span { font-size: 15px; }
  .rank-item { flex-wrap: wrap; }
  .rank-meta { width: 100%; text-align: left; padding-left: 60px; }
  .section-head .section-title { font-size: 24px; }
}

/* roulang page: article */
:root {
            --primary: #0e4d7a;
            --primary-dark: #0a3958;
            --primary-light: #1d7ac4;
            --accent: #f0b13b;
            --accent-dark: #d9941f;
            --bg: #f4f7fb;
            --surface: #ffffff;
            --text: #1c2a38;
            --muted: #64748b;
            --border: #e2e8f0;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow-sm: 0 2px 8px rgba(15, 37, 64, .06);
            --shadow-md: 0 8px 24px rgba(15, 37, 64, .08);
            --shadow-lg: 0 18px 44px rgba(15, 37, 64, .12);
            --space-section: 88px;
            --font-main: "PingFang SC", "Microsoft YaHei", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--font-main);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: inherit;
            text-decoration: none;
        }

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

        button,
        input,
        textarea {
            font: inherit;
        }

        .container {
            width: min(1180px, 92%);
            margin: 0 auto;
        }

        .app-layout {
            display: flex;
            min-height: 100vh;
        }

        .side-nav {
            width: 286px;
            position: fixed;
            inset: 0 auto 0 0;
            background: linear-gradient(165deg, #0b3a5e 0%, #123f68 45%, #1d5a8a 100%);
            color: #fff;
            display: flex;
            flex-direction: column;
            padding: 30px 22px;
            z-index: 50;
            overflow-y: auto;
            transition: transform .3s ease;
        }

        .brand-box {
            margin-bottom: 36px;
        }

        .brand-box .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            letter-spacing: .4px;
            color: #fff;
        }

        .brand-box .brand i {
            color: var(--accent);
            font-size: 24px;
        }

        .brand-tagline {
            display: block;
            font-size: 13px;
            color: rgba(255, 255, 255, .65);
            margin-top: 8px;
            letter-spacing: .2px;
        }

        .nav-group-title {
            font-size: 12px;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: rgba(255, 255, 255, .45);
            margin: 0 0 14px 8px;
        }

        .nav-menu {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .nav-menu a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 13px 16px;
            border-radius: 12px;
            color: rgba(255, 255, 255, .8);
            font-size: 15px;
            font-weight: 600;
            transition: background .2s, transform .2s, color .2s;
        }

        .nav-menu a i {
            width: 20px;
            text-align: center;
            font-size: 16px;
            color: rgba(255, 255, 255, .55);
        }

        .nav-menu a:hover {
            background: rgba(255, 255, 255, .1);
            color: #fff;
            transform: translateX(4px);
        }

        .nav-menu a.active {
            background: rgba(240, 177, 59, .16);
            color: #ffd77a;
            box-shadow: inset 3px 0 0 var(--accent);
        }

        .nav-menu a.active i {
            color: #ffd77a;
        }

        .side-foot {
            margin-top: auto;
            padding-top: 30px;
        }

        .side-contact {
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .12);
            padding: 16px;
            border-radius: 14px;
        }

        .side-contact .label {
            font-size: 12px;
            color: rgba(255, 255, 255, .6);
        }

        .side-contact a {
            display: block;
            color: #fff;
            font-size: 14px;
            word-break: break-all;
            margin-top: 6px;
        }

        .side-contact .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(240, 177, 59, .18);
            color: #ffd77a;
            font-size: 12px;
            padding: 4px 10px;
            border-radius: 999px;
            margin-top: 10px;
        }

        .main-area {
            flex: 1;
            margin-left: 286px;
            min-width: 0;
            display: flex;
            flex-direction: column;
        }

        .mobile-topbar {
            display: none;
        }

        .page-main {
            padding: 36px 24px 70px;
            flex: 1;
        }

        .article-wrap {
            width: min(1060px, 100%);
            margin: 0 auto;
        }

        .article-hero {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            padding: 34px 36px;
            position: relative;
            overflow: hidden;
        }

        .article-hero::before {
            content: "";
            position: absolute;
            top: -80px;
            right: -80px;
            width: 220px;
            height: 220px;
            background: radial-gradient(circle, rgba(240, 177, 59, .14), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

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

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

        .breadcrumb .sep {
            opacity: .5;
        }

        .cat-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(14, 77, 122, .09);
            color: var(--primary);
            font-size: 13px;
            font-weight: 700;
            padding: 6px 14px;
            border-radius: 999px;
            margin-bottom: 12px;
        }

        .post-title {
            font-size: clamp(1.7rem, 3vw, 2.6rem);
            line-height: 1.3;
            margin: 12px 0 14px;
            color: #14293d;
        }

        .post-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            color: var(--muted);
            font-size: 14px;
        }

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

        .hero-cover {
            margin-top: 26px;
            border-radius: 14px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .hero-cover img {
            width: 100%;
            height: auto;
            max-height: 440px;
            object-fit: cover;
        }

        .article-content-box {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            padding: 40px 44px;
            margin-top: 28px;
        }

        .post-content {
            font-size: 17px;
            line-height: 1.95;
            color: #2a3b4d;
        }

        .post-content h2,
        .post-content h3 {
            color: var(--primary-dark);
            margin: 1.8em 0 .7em;
        }

        .post-content h2 {
            font-size: 24px;
            border-left: 4px solid var(--accent);
            padding-left: 14px;
        }

        .post-content h3 {
            font-size: 20px;
        }

        .post-content p {
            margin: 0 0 1.4em;
        }

        .post-content ul,
        .post-content ol {
            margin: 0 0 1.4em 1.4em;
        }

        .post-content li {
            margin-bottom: .4em;
        }

        .post-content blockquote {
            border-left: 4px solid var(--accent);
            background: #fdf7e8;
            padding: 16px 18px;
            border-radius: 0 12px 12px 0;
            margin: 1.6em 0;
        }

        .post-content img {
            border-radius: 12px;
            margin: 1.4em 0;
        }

        .post-content a {
            color: var(--primary-light);
            border-bottom: 1px solid rgba(29, 122, 196, .3);
        }

        .post-missing {
            text-align: center;
            padding: 50px 20px;
        }

        .post-missing i {
            font-size: 44px;
            color: var(--accent);
        }

        .post-missing h2 {
            font-size: 26px;
            margin-top: 16px;
        }

        .post-missing p {
            color: var(--muted);
        }

        .guide-section {
            padding: var(--space-section) 0 30px;
        }

        .section-head {
            max-width: 760px;
            margin-bottom: 32px;
        }

        .section-overline {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 2px;
            color: var(--primary);
            background: rgba(14, 77, 122, .08);
            padding: 6px 14px;
            border-radius: 999px;
            margin-bottom: 12px;
        }

        .section-head h2 {
            font-size: clamp(1.5rem, 2.6vw, 2.2rem);
            color: var(--primary-dark);
            margin: .2em 0 .4em;
        }

        .section-head p {
            color: var(--muted);
            font-size: 16px;
        }

        .guide-card {
            display: block;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: transform .25s, box-shadow .25s;
            height: 100%;
        }

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

        .guide-card img {
            width: 100%;
            height: 190px;
            object-fit: cover;
        }

        .guide-card-body {
            padding: 24px;
        }

        .guide-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: rgba(14, 77, 122, .1);
            color: var(--primary);
            font-size: 18px;
            margin-bottom: 14px;
        }

        .guide-card-body h3 {
            font-size: 19px;
            color: var(--primary-dark);
            margin-bottom: 6px;
        }

        .guide-card-body p {
            color: var(--muted);
            font-size: 14px;
            margin: 0;
        }

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

        .faq-grid {
            max-width: 880px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 14px;
            margin-bottom: 14px;
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: box-shadow .2s;
        }

        .faq-item[open] {
            box-shadow: var(--shadow-md);
        }

        .faq-item summary {
            list-style: none;
            cursor: pointer;
            padding: 18px 22px;
            font-weight: 700;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 12px;
            transition: color .2s;
        }

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

        .faq-item summary::after {
            content: "\f078";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            margin-left: auto;
            color: var(--primary);
            transition: transform .25s;
        }

        .faq-item[open] summary::after {
            transform: rotate(180deg);
        }

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

        .faq-answer {
            padding: 0 22px 20px;
            color: var(--muted);
            border-top: 1px dashed var(--border);
            margin: 0;
            padding-top: 14px;
        }

        .cta-section {
            padding: 10px 0 80px;
        }

        .cta-panel {
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            border-radius: 20px;
            padding: 58px 44px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-panel::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(8, 34, 56, .9), rgba(11, 62, 98, .72));
        }

        .cta-panel>* {
            position: relative;
            z-index: 2;
        }

        .cta-panel h2 {
            font-size: clamp(1.6rem, 3vw, 2.3rem);
            margin: 0 0 14px;
        }

        .cta-panel p {
            color: rgba(255, 255, 255, .82);
            max-width: 640px;
            margin: 0 auto 28px;
        }

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

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: #1b2a37;
            font-weight: 700;
            padding: 14px 28px;
            border-radius: 999px;
            transition: transform .2s, box-shadow .2s;
            border: none;
            cursor: pointer;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(240, 177, 59, .35);
        }

        .btn-ghost {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .14);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, .5);
            font-weight: 600;
            padding: 14px 28px;
            border-radius: 999px;
            transition: background .2s;
        }

        .btn-ghost:hover {
            background: rgba(255, 255, 255, .24);
        }

        .main-footer {
            background: #0d2e47;
            color: rgba(255, 255, 255, .72);
            padding: 52px 0 24px;
            margin-left: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr .9fr 1fr;
            gap: 36px;
            max-width: 1180px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-size: 19px;
            font-weight: 800;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            max-width: 420px;
            margin-top: 12px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 15px;
            margin: 0 0 14px;
        }

        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, .7);
            font-size: 14px;
            padding: 5px 0;
            transition: color .2s;
        }

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

        .footer-bottom {
            max-width: 1180px;
            margin: 36px auto 0;
            padding: 22px 24px 0;
            border-top: 1px solid rgba(255, 255, 255, .12);
            display: flex;
            justify-content: space-between;
            gap: 10px;
            flex-wrap: wrap;
            font-size: 13px;
            color: rgba(255, 255, 255, .55);
        }

        @media (max-width: 1023px) {
            :root {
                --space-section: 60px;
            }
            .main-footer {
                margin-left: 0;
            }
        }

        @media (max-width: 900px) {
            .side-nav {
                transform: translateX(-100%);
                box-shadow: 0 0 40px rgba(0, 0, 0, .3);
                width: 300px;
            }

            .side-nav.open {
                transform: translateX(0);
            }

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

            .mobile-topbar {
                display: flex;
                align-items: center;
                justify-content: space-between;
                background: #0d2e47;
                color: #fff;
                padding: 14px 20px;
                position: sticky;
                top: 0;
                z-index: 60;
                box-shadow: var(--shadow-sm);
            }

            .mobile-logo {
                display: flex;
                align-items: center;
                gap: 8px;
                font-weight: 800;
                color: #fff;
                font-size: 17px;
            }

            .mobile-logo i {
                color: var(--accent);
            }

            .menu-toggle {
                background: transparent;
                border: 1px solid rgba(255, 255, 255, .4);
                color: #fff;
                width: 42px;
                height: 42px;
                border-radius: 10px;
                font-size: 18px;
                cursor: pointer;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                padding: 0 20px;
            }

            .page-main {
                padding: 20px 16px 50px;
            }
        }

        @media (max-width: 720px) {
            .article-hero {
                padding: 24px 18px;
            }

            .article-content-box {
                padding: 28px 18px;
            }

            .cta-panel {
                padding: 40px 22px;
            }

            .cta-actions .btn-primary,
            .cta-actions .btn-ghost {
                width: 100%;
                justify-content: center;
            }

            .post-title {
                font-size: 1.55rem;
            }

            .post-meta {
                gap: 10px;
            }
        }

        @media (max-width: 520px) {
            .hero-cover img {
                max-height: 220px;
            }

            .post-content {
                font-size: 16px;
                line-height: 1.85;
            }

            .cta-actions {
                gap: 10px;
            }
        }

        :focus-visible {
            outline: 3px solid rgba(240, 177, 59, .6);
            outline-offset: 2px;
        }

/* roulang page: category2 */
:root {
  --primary: #0b2a5b;
  --primary-dark: #071d40;
  --primary-light: #123c7a;
  --accent: #f0b429;
  --accent-dark: #d99b1a;
  --bg: #f4f7fb;
  --card: #ffffff;
  --text: #16233c;
  --muted: #64748b;
  --border: #e2e8f0;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 8px rgba(15, 35, 60, 0.06);
  --shadow: 0 12px 32px rgba(15, 35, 60, 0.10);
  --shadow-lg: 0 20px 50px rgba(7, 29, 64, 0.16);
  --section-space: 96px;
  --font-main: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

a {
  text-decoration: none;
  color: inherit;
}

button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
}

.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 28px;
}

.page-shell {
  margin-left: 280px;
  min-height: 100vh;
  background: var(--bg);
}

.side-nav {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 280px;
  background: var(--primary-dark);
  z-index: 120;
  display: flex;
  flex-direction: column;
  box-shadow: 4px 0 24px rgba(7, 29, 64, 0.14);
  transition: transform 0.32s ease;
}

.side-brand {
  padding: 34px 28px 22px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.side-brand i {
  color: var(--accent);
  font-size: 26px;
}

.side-brand span {
  color: #ffffff;
  font-size: 19px;
  font-weight: 800;
  letter-spacing: 0.5px;
}

.side-nav-inner {
  padding: 26px 18px;
  flex: 1;
  overflow-y: auto;
  position: relative;
}

.nav-group-title {
  font-size: 12px;
  letter-spacing: 2px;
  color: rgba(255, 255, 255, 0.44);
  text-transform: uppercase;
  padding: 0 12px;
  margin-bottom: 12px;
}

.nav-menu {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.nav-menu a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 12px;
  color: rgba(255, 255, 255, 0.78);
  font-weight: 500;
  font-size: 15px;
  border: 1px solid transparent;
  transition: all 0.25s ease;
}

.nav-menu a:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.08);
  transform: translateX(3px);
}

.nav-menu a:focus-visible {
  outline: 3px solid rgba(240, 180, 41, 0.5);
  outline-offset: 2px;
}

.nav-menu a.active {
  color: #ffffff;
  background: linear-gradient(135deg, rgba(240, 180, 41, 0.26), rgba(240, 180, 41, 0.07));
  border-color: rgba(240, 180, 41, 0.36);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
}

.nav-menu a i {
  width: 20px;
  text-align: center;
  color: var(--accent);
  font-size: 15px;
}

.side-nav-close {
  display: none;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 10px;
  color: #ffffff;
  font-size: 16px;
  position: absolute;
  top: 24px;
  right: 18px;
  z-index: 5;
}

.mobile-nav-head {
  display: none;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  background: var(--primary-dark);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 8px 22px rgba(7, 29, 64, 0.18);
}

.mobile-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #ffffff;
  font-weight: 800;
  font-size: 17px;
}

.mobile-brand i {
  color: var(--accent);
  font-size: 20px;
}

.menu-toggle {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.26);
  color: #ffffff;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  transition: all 0.25s ease;
}

.menu-toggle:hover {
  background: rgba(255, 255, 255, 0.08);
}

.menu-toggle:focus-visible {
  outline: 3px solid rgba(240, 180, 41, 0.6);
  outline-offset: 2px;
}

.nav-overlay {
  display: none;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 15px;
  line-height: 1;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all 0.25s ease;
}

.btn:focus-visible {
  outline: 3px solid rgba(240, 180, 41, 0.5);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--accent);
  color: var(--primary-dark);
  box-shadow: 0 10px 24px rgba(240, 180, 41, 0.28);
}

.btn-primary:hover {
  background: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.18);
}

.btn-ghost {
  background: transparent;
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.6);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: #ffffff;
  transform: translateY(-2px);
}

.btn-light {
  background: #ffffff;
  color: var(--primary-dark);
}

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

.category-hero {
  position: relative;
  padding: 120px 0 110px;
  background-size: cover;
  background-position: center;
  color: #ffffff;
  overflow: hidden;
}

.category-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(7, 29, 64, 0.95) 0%, rgba(11, 42, 91, 0.86) 55%, rgba(11, 42, 91, 0.56) 100%);
}

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

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.76);
  margin-bottom: 20px;
}

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

.category-hero h1 {
  font-size: clamp(34px, 5vw, 56px);
  font-weight: 900;
  line-height: 1.2;
  margin: 10px 0 18px;
  letter-spacing: 1px;
}

.category-hero p {
  max-width: 700px;
  font-size: 18px;
  color: rgba(255, 255, 255, 0.86);
  margin-bottom: 30px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 34px;
}

.hero-tags {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.tag-chip {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.22);
  backdrop-filter: blur(6px);
  padding: 7px 16px;
  border-radius: 999px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.92);
  transition: all 0.25s ease;
}

.tag-chip:hover {
  background: var(--accent);
  color: var(--primary-dark);
  border-color: var(--accent);
}

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

.page-section.bg-soft {
  background: #eef2f8;
}

.section-head {
  max-width: 840px;
  margin-bottom: 46px;
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  background: rgba(240, 180, 41, 0.14);
  border: 1px solid rgba(240, 180, 41, 0.36);
  padding: 7px 16px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(26px, 3vw, 38px);
  font-weight: 900;
  margin: 0 0 12px;
  color: var(--text);
  line-height: 1.25;
}

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

.grid-x > .cell {
  margin-bottom: 24px;
}

.stat-card {
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 30px 24px;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
  height: 100%;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.stat-card::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  height: 4px;
  width: 68px;
  background: var(--accent);
  border-radius: 0 4px 4px 0;
}

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

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(240, 180, 41, 0.16);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 18px;
}

.stat-num {
  font-size: 34px;
  font-weight: 900;
  color: var(--primary);
  line-height: 1.2;
}

.stat-unit {
  font-size: 15px;
  font-weight: 600;
  color: var(--muted);
  margin-left: 4px;
}

.stat-label {
  margin-top: 8px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
}

.focus-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 24px;
  height: 100%;
  box-shadow: var(--shadow-sm);
  transition: all 0.25s ease;
}

.focus-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow);
  border-color: rgba(240, 180, 41, 0.55);
}

.focus-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, #0b2a5b, #123c7a);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 21px;
  margin-bottom: 20px;
}

.focus-card h3 {
  margin: 0 0 10px;
  font-size: 19px;
  font-weight: 800;
  color: var(--text);
}

.focus-card > p {
  color: var(--muted);
  font-size: 14px;
  margin: 0 0 16px;
}

.focus-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.mini-tag {
  background: #f1f5f9;
  color: var(--muted);
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
}

.focus-more {
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: color 0.2s ease;
}

.focus-more i {
  transition: transform 0.2s ease;
}

.focus-card:hover .focus-more i {
  transform: translateX(4px);
}

.news-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.news-item {
  display: flex;
  gap: 22px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow-sm);
  align-items: center;
  transition: all 0.25s ease;
}

.news-item:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.news-thumb {
  width: 220px;
  height: 138px;
  border-radius: 12px;
  object-fit: cover;
  flex-shrink: 0;
}

.news-info {
  flex: 1;
  min-width: 0;
}

.news-tag {
  display: inline-flex;
  align-items: center;
  background: rgba(240, 180, 41, 0.22);
  color: #8a5a00;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 10px;
}

.news-tag.blue {
  background: rgba(11, 42, 91, 0.1);
  color: var(--primary);
}

.news-info h3 {
  margin: 10px 0 8px;
  font-size: 19px;
  line-height: 1.4;
  font-weight: 800;
  color: var(--text);
}

.news-info h3 a {
  transition: color 0.2s ease;
}

.news-info h3 a:hover {
  color: var(--primary);
}

.news-excerpt {
  color: var(--muted);
  font-size: 14px;
  margin: 0 0 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--muted);
  font-size: 13px;
  flex-wrap: wrap;
}

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

.timeline-list {
  position: relative;
}

.timeline-item {
  position: relative;
  padding-left: 44px;
  padding-bottom: 38px;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-list::before {
  content: "";
  position: absolute;
  left: 14px;
  top: 10px;
  bottom: 10px;
  width: 3px;
  border-radius: 3px;
  background: linear-gradient(to bottom, var(--accent), var(--primary));
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 8px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: #ffffff;
  border: 4px solid var(--accent);
  box-shadow: 0 0 0 4px rgba(240, 180, 41, 0.22);
}

.timeline-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 20px 24px;
  box-shadow: var(--shadow-sm);
  transition: all 0.25s ease;
}

.timeline-card:hover {
  box-shadow: var(--shadow);
  transform: translateX(3px);
}

.timeline-time {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
  background: rgba(240, 180, 41, 0.15);
  padding: 3px 10px;
  border-radius: 999px;
  margin-bottom: 10px;
}

.timeline-card h3 {
  font-size: 17px;
  font-weight: 800;
  margin: 0 0 6px;
  color: var(--text);
}

.timeline-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.hot-card {
  background: var(--card);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  height: 100%;
  display: flex;
  flex-direction: column;
  transition: all 0.25s ease;
}

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

.hot-cover {
  position: relative;
  height: 190px;
  overflow: hidden;
}

.hot-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.hot-card:hover .hot-cover img {
  transform: scale(1.06);
}

.hot-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(7, 29, 64, 0.55), transparent 60%);
}

.hot-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  background: var(--accent);
  color: var(--primary-dark);
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
}

.hot-body {
  padding: 22px 22px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.hot-body h3 {
  font-size: 18px;
  font-weight: 800;
  margin: 0 0 8px;
  line-height: 1.4;
  color: var(--text);
}

.hot-body > p {
  font-size: 14px;
  color: var(--muted);
  margin: 0 0 18px;
}

.hot-meta {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--muted);
  font-size: 13px;
}

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

.hot-link i {
  transition: transform 0.2s ease;
}

.hot-card:hover .hot-link i {
  transform: translateX(4px);
}

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

.faq-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 14px;
  overflow: hidden;
  transition: box-shadow 0.25s ease, border-color 0.25s ease;
}

.faq-item.open {
  box-shadow: var(--shadow);
  border-color: rgba(240, 180, 41, 0.5);
}

.faq-question {
  width: 100%;
  text-align: left;
  background: transparent;
  padding: 22px 24px;
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  cursor: pointer;
}

.faq-question:focus-visible {
  outline: 3px solid rgba(240, 180, 41, 0.5);
  outline-offset: -3px;
  border-radius: var(--radius);
}

.faq-icon {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: rgba(240, 180, 41, 0.16);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
  transition: transform 0.3s ease;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.3s ease;
  padding: 0 24px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

.faq-item.open .faq-answer {
  max-height: 500px;
  padding: 0 24px 24px;
}

.cta-block {
  border-radius: 24px;
  padding: 68px 48px;
  background-color: var(--primary);
  background-size: cover;
  background-position: center;
  position: relative;
  overflow: hidden;
  color: #ffffff;
  box-shadow: var(--shadow-lg);
}

.cta-block::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(7, 29, 64, 0.92), rgba(11, 42, 91, 0.72));
}

.cta-inner {
  position: relative;
  z-index: 2;
  max-width: 780px;
  margin: 0 auto;
  text-align: center;
}

.cta-block h2 {
  font-size: clamp(26px, 3vw, 40px);
  font-weight: 900;
  margin: 0 0 16px;
  color: #ffffff;
  line-height: 1.3;
}

.cta-block p {
  color: rgba(255, 255, 255, 0.86);
  font-size: 17px;
  margin-bottom: 30px;
}

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

.main-footer {
  background: var(--primary-dark);
  color: #cbd5e1;
  padding: 80px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
}

.footer-logo {
  color: #ffffff;
  font-weight: 800;
  font-size: 20px;
  display: flex;
  gap: 10px;
  align-items: center;
  margin-bottom: 16px;
}

.footer-logo i {
  color: var(--accent);
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  max-width: 380px;
}

.footer-col h4 {
  color: #ffffff;
  font-size: 16px;
  margin: 0 0 18px;
  font-weight: 700;
}

.footer-col a {
  display: block;
  color: #a7b4c8;
  padding: 7px 0;
  font-size: 14px;
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.footer-col a:hover {
  color: var(--accent);
  padding-left: 5px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 22px 0;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  color: #8194ad;
  font-size: 13px;
  flex-wrap: wrap;
}

@media (min-width: 1024px) {
  .side-nav-close {
    display: none !important;
  }
}

@media (max-width: 1023px) {
  :root {
    --section-space: 72px;
  }

  .page-shell {
    margin-left: 0;
  }

  .side-nav {
    transform: translateX(-100%);
    width: 286px;
  }

  .side-nav.open {
    transform: none;
  }

  .side-nav-close {
    display: flex;
  }

  .mobile-nav-head {
    display: flex;
  }

  .nav-overlay.show {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(5, 15, 30, 0.5);
    z-index: 110;
  }
}

@media (max-width: 640px) {
  .category-hero {
    padding: 90px 0 80px;
  }

  .category-hero p {
    font-size: 16px;
  }

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

  .news-item {
    flex-direction: column;
    align-items: flex-start;
  }

  .news-thumb {
    width: 100%;
    height: 190px;
  }

  .cta-block {
    padding: 48px 24px;
  }

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

  .footer-bottom {
    flex-direction: column;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 18px;
  }

  .page-section {
    padding: 60px 0;
  }

  .section-header {
    margin-bottom: 34px;
  }

  .section-title {
    font-size: 28px;
  }

  .stat-num {
    font-size: 30px;
  }

  .focus-card {
    padding: 24px 20px;
  }

  .timeline-item {
    padding-left: 36px;
  }

  .timeline-card {
    padding: 16px 18px;
  }

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