/* roulang page: index */
/* ===== Design Variables ===== */
:root {
  --primary: #1a2a6c;
  --primary-light: #2a3f8a;
  --primary-dark: #0e1a4a;
  --accent: #f0a500;
  --accent-light: #ffc233;
  --accent-dark: #c88a00;
  --bg-light: #f8f9fc;
  --bg-white: #ffffff;
  --bg-dark: #0e1a4a;
  --text-dark: #1a1a2e;
  --text-body: #3a3a5c;
  --text-light: #6b6b8a;
  --text-white: #ffffff;
  --border: #e2e6f0;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 8px rgba(26,42,108,0.06);
  --shadow-md: 0 6px 24px rgba(26,42,108,0.10);
  --shadow-lg: 0 12px 48px rgba(26,42,108,0.14);
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --max-width: 1200px;
  --header-h: 72px;
  --space-section: 80px;
  --space-block: 48px;
}
@media (max-width:768px) {
  :root { --space-section: 48px; --space-block: 32px; }
}

/* ===== Reset & Base ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-family);font-size:16px;line-height:1.6;color:var(--text-body);background:var(--bg-light);-webkit-font-smoothing:antialiased}
a{color:var(--primary);text-decoration:none;transition:color .2s}
a:hover{color:var(--accent)}
img{max-width:100%;height:auto;display:block}
button,input,textarea{font-family:inherit;font-size:inherit}
ul{list-style:none}

/* ===== Container ===== */
.container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 24px}
@media(max-width:520px){.container{padding:0 16px}}

/* ===== Header / Nav ===== */
.site-header{
  position:fixed;top:0;left:0;width:100%;height:var(--header-h);
  background:rgba(255,255,255,0.96);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);z-index:1000;transition:box-shadow .3s;
  box-shadow:0 1px 4px rgba(26,42,108,0.04);
}
.site-header .container{display:flex;align-items:center;height:100%;gap:24px}
.logo{flex-shrink:0}
.logo a{
  font-size:22px;font-weight:700;color:var(--primary);
  letter-spacing:-0.3px;display:flex;align-items:center;gap:8px;
}
.logo a i{color:var(--accent);font-size:26px}
.logo a span{background:linear-gradient(135deg,var(--primary),var(--primary-light));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.main-nav{flex:1;display:flex;justify-content:center}
.main-nav ul{display:flex;align-items:center;gap:4px}
.main-nav ul li a{
  display:block;padding:8px 18px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:500;color:var(--text-body);
  transition:all .25s;position:relative;
}
.main-nav ul li a:hover{color:var(--primary);background:rgba(26,42,108,0.05)}
.main-nav ul li.active a{color:var(--primary);background:rgba(26,42,108,0.08);font-weight:600}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.search-box{display:flex;align-items:center;background:var(--bg-light);border-radius:var(--radius-sm);border:1px solid var(--border);overflow:hidden;transition:border-color .25s}
.search-box:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(240,165,0,0.12)}
.search-box input{border:none;background:transparent;padding:8px 14px;width:160px;font-size:14px;color:var(--text-dark);outline:none}
.search-box input::placeholder{color:var(--text-light)}
.search-box button{border:none;background:transparent;padding:8px 14px;color:var(--text-light);cursor:pointer;transition:color .2s}
.search-box button:hover{color:var(--accent)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:600;border-radius:var(--radius-sm);border:none;cursor:pointer;transition:all .25s;font-size:14px;padding:10px 22px;line-height:1.4}
.btn-primary{background:var(--primary);color:var(--text-white)}
.btn-primary:hover{background:var(--primary-light);color:var(--text-white);transform:translateY(-1px);box-shadow:0 4px 14px rgba(26,42,108,0.25)}
.btn-accent{background:var(--accent);color:var(--primary-dark)}
.btn-accent:hover{background:var(--accent-light);color:var(--primary-dark);transform:translateY(-1px);box-shadow:0 4px 14px rgba(240,165,0,0.35)}
.btn-outline{background:transparent;color:var(--primary);border:2px solid var(--primary)}
.btn-outline:hover{background:var(--primary);color:var(--text-white);transform:translateY(-1px)}
.btn-lg{padding:14px 34px;font-size:16px;border-radius:var(--radius-md)}
.mobile-toggle{display:none;background:none;border:none;font-size:24px;color:var(--primary);cursor:pointer;padding:4px}
@media(max-width:1024px){
  .search-box input{width:120px}
  .main-nav ul li a{padding:8px 12px;font-size:14px}
}
@media(max-width:768px){
  .main-nav{position:fixed;top:var(--header-h);left:0;width:100%;background:var(--bg-white);border-bottom:1px solid var(--border);padding:16px 24px;transform:translateY(-120%);opacity:0;visibility:hidden;transition:all .35s ease;box-shadow:var(--shadow-md)}
  .main-nav.open{transform:translateY(0);opacity:1;visibility:visible}
  .main-nav ul{flex-direction:column;gap:2px;width:100%}
  .main-nav ul li a{width:100%;padding:12px 16px;font-size:16px}
  .header-actions .search-box{display:none}
  .mobile-toggle{display:block}
  .header-actions .btn{font-size:13px;padding:8px 16px}
}
@media(max-width:520px){
  .logo a{font-size:18px}
  .header-actions .btn{padding:6px 12px;font-size:12px}
}

/* ===== Hero ===== */
.hero{
  position:relative;min-height:560px;display:flex;align-items:center;
  margin-top:var(--header-h);background:var(--primary-dark);
  overflow:hidden;padding:80px 0 72px;
}
.hero-bg{
  position:absolute;inset:0;background:url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  opacity:0.25;mix-blend-mode:overlay;
}
.hero-overlay{
  position:absolute;inset:0;
  background:linear-gradient(135deg, rgba(14,26,74,0.92) 0%, rgba(26,42,108,0.78) 50%, rgba(240,165,0,0.18) 100%);
}
.hero .container{position:relative;z-index:2;text-align:center}
.hero-badge{
  display:inline-block;padding:6px 20px;border-radius:50px;background:rgba(240,165,0,0.18);
  color:var(--accent-light);font-size:14px;font-weight:500;letter-spacing:0.5px;
  margin-bottom:24px;border:1px solid rgba(240,165,0,0.25);
}
.hero h1{
  font-size:52px;font-weight:800;color:var(--text-white);
  line-height:1.18;letter-spacing:-0.5px;margin-bottom:20px;
}
.hero h1 span{color:var(--accent-light)}
.hero p{
  font-size:20px;color:rgba(255,255,255,0.78);max-width:680px;margin:0 auto 36px;
  line-height:1.6;
}
.hero-actions{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
@media(max-width:768px){
  .hero{min-height:420px;padding:56px 0 48px}
  .hero h1{font-size:32px}
  .hero p{font-size:17px;max-width:100%}
  .hero-actions{gap:12px;flex-direction:column;align-items:center}
  .hero-actions .btn{width:100%;max-width:280px}
}
@media(max-width:520px){
  .hero h1{font-size:26px}
  .hero p{font-size:15px}
}

/* ===== Section通用 ===== */
.section{padding:var(--space-section) 0}
.section-alt{background:var(--bg-white)}
.section-title{
  font-size:34px;font-weight:700;color:var(--text-dark);
  margin-bottom:12px;letter-spacing:-0.3px;text-align:center;
}
.section-subtitle{
  font-size:17px;color:var(--text-light);text-align:center;
  max-width:600px;margin:0 auto var(--space-block);
}
@media(max-width:768px){.section-title{font-size:26px}.section-subtitle{font-size:15px}}

/* ===== 特色卡片 ===== */
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.feature-card{
  background:var(--bg-white);border-radius:var(--radius-md);
  padding:36px 28px;text-align:center;border:1px solid var(--border);
  transition:all .3s;box-shadow:var(--shadow-sm);
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(240,165,0,0.2)}
.feature-icon{
  width:64px;height:64px;border-radius:16px;display:flex;align-items:center;justify-content:center;
  margin:0 auto 20px;font-size:28px;
}
.feature-icon.blue{background:rgba(26,42,108,0.08);color:var(--primary)}
.feature-icon.gold{background:rgba(240,165,0,0.12);color:var(--accent-dark)}
.feature-icon.teal{background:rgba(0,180,180,0.08);color:#008a8a}
.feature-card h3{font-size:20px;font-weight:600;color:var(--text-dark);margin-bottom:10px}
.feature-card p{font-size:15px;color:var(--text-light);line-height:1.6}
@media(max-width:768px){.features-grid{grid-template-columns:1fr;gap:20px}.feature-card{padding:28px 20px}}

/* ===== 分类入口 ===== */
.category-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.category-card{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  min-height:280px;display:flex;align-items:flex-end;
  background:var(--primary-dark);transition:all .3s;cursor:pointer;
}
.category-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.category-card .card-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:0.3;transition:opacity .4s;
}
.category-card:hover .card-bg{opacity:0.45}
.category-card .card-overlay{
  position:absolute;inset:0;
  background:linear-gradient(0deg, rgba(14,26,74,0.92) 0%, rgba(14,26,74,0.25) 70%, transparent 100%);
}
.category-card .card-content{position:relative;z-index:2;padding:32px 28px;width:100%}
.category-card .card-tag{
  display:inline-block;padding:4px 14px;border-radius:50px;
  background:rgba(240,165,0,0.2);color:var(--accent-light);
  font-size:13px;font-weight:500;margin-bottom:10px;
}
.category-card h3{font-size:24px;font-weight:700;color:var(--text-white);margin-bottom:6px}
.category-card p{font-size:15px;color:rgba(255,255,255,0.78);max-width:380px}
.category-card .card-link{
  display:inline-flex;align-items:center;gap:6px;margin-top:14px;
  color:var(--accent-light);font-weight:600;font-size:15px;
  transition:gap .25s;
}
.category-card:hover .card-link{gap:12px}
@media(max-width:768px){.category-grid{grid-template-columns:1fr;gap:20px}.category-card{min-height:220px}.category-card .card-content{padding:24px 20px}.category-card h3{font-size:20px}}

/* ===== 资讯列表 ===== */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.news-card{
  display:flex;gap:20px;background:var(--bg-white);border-radius:var(--radius-md);
  padding:20px;border:1px solid var(--border);transition:all .3s;
  box-shadow:var(--shadow-sm);
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:rgba(240,165,0,0.15)}
.news-card .news-img{
  width:140px;height:100px;border-radius:var(--radius-sm);object-fit:cover;flex-shrink:0;
  background:var(--border);
}
.news-card .news-body{flex:1;display:flex;flex-direction:column;justify-content:center;min-width:0}
.news-card .news-category{
  display:inline-block;font-size:12px;font-weight:600;color:var(--accent-dark);
  background:rgba(240,165,0,0.10);padding:2px 12px;border-radius:50px;
  margin-bottom:6px;width:fit-content;
}
.news-card h4{font-size:16px;font-weight:600;color:var(--text-dark);margin-bottom:6px;line-height:1.4}
.news-card h4 a{color:var(--text-dark)}
.news-card h4 a:hover{color:var(--primary)}
.news-card .news-excerpt{
  font-size:14px;color:var(--text-light);line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card .news-meta{
  display:flex;align-items:center;gap:14px;margin-top:8px;
  font-size:13px;color:var(--text-light);
}
.news-card .news-meta i{font-size:12px;opacity:0.6}
.news-empty{
  grid-column:1/-1;text-align:center;padding:48px 20px;
  color:var(--text-light);font-size:16px;
  background:var(--bg-white);border-radius:var(--radius-md);border:1px dashed var(--border);
}
@media(max-width:768px){.news-grid{grid-template-columns:1fr}.news-card{flex-direction:column}.news-card .news-img{width:100%;height:160px}}
@media(max-width:520px){.news-card .news-img{height:130px}}

/* ===== 数据统计 ===== */
.stats-section{
  background:var(--primary-dark);position:relative;overflow:hidden;
}
.stats-section::before{
  content:'';position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
  opacity:0.08;pointer-events:none;
}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;position:relative;z-index:1}
.stat-item{text-align:center;padding:20px}
.stat-number{font-size:44px;font-weight:800;color:var(--accent-light);line-height:1.2;margin-bottom:6px}
.stat-label{font-size:16px;color:rgba(255,255,255,0.72);font-weight:500}
@media(max-width:768px){.stats-grid{grid-template-columns:repeat(2,1fr);gap:24px}.stat-number{font-size:34px}}
@media(max-width:520px){.stats-grid{grid-template-columns:1fr 1fr;gap:16px}.stat-number{font-size:28px}}

/* ===== FAQ ===== */
.faq-list{max-width:780px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:var(--bg-white);border-radius:var(--radius-md);
  border:1px solid var(--border);overflow:hidden;
  transition:box-shadow .25s;
}
.faq-item:hover{box-shadow:var(--shadow-sm)}
.faq-question{
  display:flex;justify-content:space-between;align-items:center;
  padding:18px 24px;cursor:pointer;font-size:16px;font-weight:600;
  color:var(--text-dark);background:none;border:none;width:100%;text-align:left;
  transition:color .25s;
}
.faq-question i{font-size:14px;color:var(--text-light);transition:transform .3s;flex-shrink:0}
.faq-item.active .faq-question i{transform:rotate(180deg);color:var(--accent)}
.faq-answer{padding:0 24px 18px;font-size:15px;color:var(--text-body);line-height:1.7;display:none}
.faq-item.active .faq-answer{display:block}
.faq-item.active .faq-question{color:var(--primary)}
@media(max-width:520px){.faq-question{padding:14px 16px;font-size:15px}.faq-answer{padding:0 16px 14px;font-size:14px}}

/* ===== CTA ===== */
.cta-section{
  background:linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  position:relative;overflow:hidden;padding:72px 0;
}
.cta-section::before{
  content:'';position:absolute;inset:0;
  background:url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
  opacity:0.06;pointer-events:none;
}
.cta-box{text-align:center;position:relative;z-index:1}
.cta-box h2{font-size:36px;font-weight:700;color:var(--text-white);margin-bottom:14px}
.cta-box p{font-size:18px;color:rgba(255,255,255,0.78);max-width:560px;margin:0 auto 32px}
.cta-box .btn-accent{font-size:17px;padding:16px 42px;border-radius:var(--radius-md)}
@media(max-width:768px){.cta-box h2{font-size:26px}.cta-box p{font-size:16px}.cta-section{padding:48px 0}}

/* ===== Footer ===== */
.site-footer{
  background:var(--bg-dark);color:rgba(255,255,255,0.72);padding:48px 0 32px;
}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:36px}
.footer-brand .logo a{color:var(--text-white);font-size:20px}
.footer-brand .logo a span{-webkit-text-fill-color:var(--text-white);background:none}
.footer-brand p{font-size:14px;margin-top:12px;line-height:1.7;max-width:320px}
.footer-col h4{font-size:15px;font-weight:600;color:var(--text-white);margin-bottom:16px}
.footer-col ul li{margin-bottom:8px}
.footer-col ul li a{font-size:14px;color:rgba(255,255,255,0.65);transition:color .25s}
.footer-col ul li a:hover{color:var(--accent-light)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.08);padding-top:24px;
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;
  font-size:13px;color:rgba(255,255,255,0.5);
}
.footer-bottom a{color:rgba(255,255,255,0.5)}
.footer-bottom a:hover{color:var(--accent-light)}
@media(max-width:768px){.footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-bottom{flex-direction:column;text-align:center}}
@media(max-width:520px){.footer-grid{grid-template-columns:1fr;gap:24px}}

/* ===== 面包屑 ===== */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-light);padding:16px 0;flex-wrap:wrap}
.breadcrumb a{color:var(--text-light)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb span{color:var(--text-body)}
.breadcrumb i{font-size:12px;opacity:0.5}

/* ===== 文章页 ===== */
.article-header{padding:56px 0 32px;margin-top:var(--header-h);background:var(--bg-white);border-bottom:1px solid var(--border)}
.article-header h1{font-size:36px;font-weight:700;color:var(--text-dark);line-height:1.3;margin-bottom:16px}
.article-meta{display:flex;flex-wrap:wrap;gap:16px;font-size:14px;color:var(--text-light)}
.article-meta span{display:flex;align-items:center;gap:6px}
.article-body{padding:40px 0 56px}
.article-content{max-width:780px;margin:0 auto;font-size:17px;line-height:1.8;color:var(--text-body)}
.article-content p{margin-bottom:20px}
.article-content img{border-radius:var(--radius-md);margin:24px 0}
.article-content h2,.article-content h3{color:var(--text-dark);margin-top:32px;margin-bottom:14px}
.article-notfound{text-align:center;padding:80px 20px}
.article-notfound i{font-size:56px;color:var(--text-light);opacity:0.4;margin-bottom:16px}
.article-notfound h2{font-size:28px;color:var(--text-dark);margin-bottom:10px}
.article-notfound p{color:var(--text-light);margin-bottom:20px}
@media(max-width:768px){.article-header h1{font-size:26px}.article-content{font-size:16px}}

/* ===== 分类页Banner ===== */
.category-banner{
  margin-top:var(--header-h);padding:64px 0 48px;
  background:var(--primary-dark);position:relative;overflow:hidden;
}
.category-banner .bg{
  position:absolute;inset:0;background:url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
  opacity:0.12;pointer-events:none;
}
.category-banner .container{position:relative;z-index:1;text-align:center}
.category-banner h1{font-size:36px;font-weight:700;color:var(--text-white);margin-bottom:12px}
.category-banner p{font-size:18px;color:rgba(255,255,255,0.78);max-width:600px;margin:0 auto}
@media(max-width:768px){.category-banner{padding:40px 0 32px}.category-banner h1{font-size:26px}}

/* ===== 分类内容列表 ===== */
.cate-list{display:flex;flex-direction:column;gap:16px}
.cate-list-item{
  display:flex;gap:20px;background:var(--bg-white);border-radius:var(--radius-md);
  padding:20px 24px;border:1px solid var(--border);transition:all .25s;
  align-items:center;
}
.cate-list-item:hover{transform:translateX(4px);box-shadow:var(--shadow-sm);border-color:rgba(240,165,0,0.12)}
.cate-list-item .num{
  width:36px;height:36px;border-radius:50%;background:rgba(26,42,108,0.06);
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:16px;color:var(--primary);flex-shrink:0;
}
.cate-list-item .body{flex:1;min-width:0}
.cate-list-item .body h4{font-size:16px;font-weight:600;color:var(--text-dark);margin-bottom:4px}
.cate-list-item .body h4 a{color:var(--text-dark)}
.cate-list-item .body h4 a:hover{color:var(--primary)}
.cate-list-item .body p{font-size:14px;color:var(--text-light);line-height:1.5}
.cate-list-item .meta{font-size:13px;color:var(--text-light);white-space:nowrap}
@media(max-width:520px){.cate-list-item{flex-direction:column;align-items:flex-start;padding:16px}.cate-list-item .meta{white-space:normal}}

/* roulang page: article */
/* ===== Design Variables ===== */
:root {
  --primary: #1a2a6c;
  --primary-light: #3a4a8c;
  --primary-dark: #0f1a4a;
  --secondary: #e8491d;
  --secondary-light: #f05a2e;
  --secondary-dark: #c43a12;
  --accent: #f5c518;
  --accent-light: #f8d64a;
  --bg-body: #f8f9fc;
  --bg-white: #ffffff;
  --bg-light: #f0f2f8;
  --bg-dark: #0d1333;
  --text-dark: #1a1a2e;
  --text-body: #3d3d5c;
  --text-light: #6b6b8a;
  --text-white: #ffffff;
  --border: #e0e3ed;
  --border-light: #f0f2f8;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-sm: 0 2px 8px rgba(26,42,108,0.06);
  --shadow-md: 0 6px 24px rgba(26,42,108,0.10);
  --shadow-lg: 0 16px 48px rgba(26,42,108,0.14);
  --shadow-xl: 0 24px 64px rgba(26,42,108,0.18);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --max-width: 1200px;
  --header-height: 76px;
  --spacing-section: 80px;
  --spacing-block: 40px;
}
/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { font-family: var(--font-family); font-size: 16px; line-height: 1.7; color: var(--text-body); background: var(--bg-body); }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover, a:focus { color: var(--secondary); }
img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
button, input, textarea, select { font-family: inherit; font-size: inherit; outline: none; }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { line-height: 1.3; color: var(--text-dark); font-weight: 700; }
h1 { font-size: clamp(2rem, 4.5vw, 3.2rem); }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.4rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }
h4 { font-size: 1.1rem; }
p { margin-bottom: 1em; }
.container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
@media (max-width: 768px) { .container { padding: 0 16px; } }
/* ===== Header & Navigation ===== */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255,255,255,0.95); backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border); height: var(--header-height);
  transition: var(--transition);
}
.site-header.scrolled { box-shadow: var(--shadow-md); }
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 24px;
}
.logo a {
  display: flex; align-items: center; gap: 10px;
  font-size: 1.3rem; font-weight: 800; color: var(--primary); letter-spacing: -0.3px;
}
.logo a i { font-size: 1.6rem; color: var(--accent); }
.logo a span { background: linear-gradient(135deg, var(--primary), var(--primary-light)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.main-nav { display: flex; align-items: center; gap: 6px; }
.main-nav ul { display: flex; align-items: center; gap: 4px; }
.main-nav li a {
  display: block; padding: 8px 18px; border-radius: var(--radius-sm);
  font-size: 0.95rem; font-weight: 500; color: var(--text-body);
  transition: var(--transition); position: relative;
}
.main-nav li a:hover { color: var(--primary); background: var(--bg-light); }
.main-nav li.active a { color: var(--primary); font-weight: 600; background: rgba(26,42,108,0.08); }
.main-nav li.active a::after { content: ''; position: absolute; bottom: 2px; left: 50%; transform: translateX(-50%); width: 20px; height: 3px; border-radius: 2px; background: var(--secondary); }
.nav-actions { display: flex; align-items: center; gap: 12px; }
.search-toggle { background: none; border: none; font-size: 1.2rem; color: var(--text-light); cursor: pointer; padding: 8px; border-radius: 50%; transition: var(--transition); }
.search-toggle:hover { background: var(--bg-light); color: var(--primary); }
.btn-login {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 20px; border-radius: var(--radius-sm);
  font-size: 0.9rem; font-weight: 600; color: var(--primary);
  border: 2px solid var(--border); background: var(--bg-white);
  cursor: pointer; transition: var(--transition);
}
.btn-login:hover { border-color: var(--primary); background: var(--bg-light); }
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 24px; border-radius: var(--radius-sm);
  font-size: 0.95rem; font-weight: 600; color: var(--text-white);
  background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
  border: none; cursor: pointer; transition: var(--transition); box-shadow: 0 4px 14px rgba(232,73,29,0.30);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(232,73,29,0.40); color: #fff; }
.btn-primary:active { transform: translateY(0); }
.mobile-toggle { display: none; background: none; border: none; font-size: 1.5rem; color: var(--text-dark); cursor: pointer; padding: 4px; }
@media (max-width: 900px) {
  .main-nav { position: fixed; top: var(--header-height); left: 0; right: 0; background: var(--bg-white); flex-direction: column; padding: 20px 24px; border-bottom: 1px solid var(--border); box-shadow: var(--shadow-md); transform: translateY(-120%); opacity: 0; pointer-events: none; transition: var(--transition); }
  .main-nav.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .main-nav ul { flex-direction: column; width: 100%; gap: 2px; }
  .main-nav li a { width: 100%; padding: 12px 16px; border-radius: var(--radius-sm); }
  .main-nav li.active a::after { display: none; }
  .main-nav li.active a { background: rgba(26,42,108,0.08); }
  .nav-actions { width: 100%; justify-content: flex-end; padding-top: 12px; border-top: 1px solid var(--border); margin-top: 8px; }
  .mobile-toggle { display: block; }
}
@media (max-width: 520px) {
  .header-inner { padding: 0 12px; }
  .logo a { font-size: 1.1rem; }
  .btn-login span, .btn-primary span { display: none; }
  .btn-login, .btn-primary { padding: 8px 14px; }
}
/* ===== Page Banner ===== */
.page-banner {
  position: relative; margin-top: var(--header-height);
  padding: 60px 0 50px; background: linear-gradient(135deg, var(--bg-dark) 0%, #1a2a6c 60%, #2a3a7c 100%);
  overflow: hidden; text-align: center;
}
.page-banner::before {
  content: ''; position: absolute; inset: 0;
  background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity: 0.12; mix-blend-mode: overlay;
}
.page-banner .container { position: relative; z-index: 2; }
.page-banner h1 { color: var(--text-white); font-size: clamp(1.6rem, 3vw, 2.2rem); margin-bottom: 12px; }
.page-banner .breadcrumb { display: flex; align-items: center; justify-content: center; gap: 10px; flex-wrap: wrap; font-size: 0.9rem; color: rgba(255,255,255,0.7); }
.page-banner .breadcrumb a { color: rgba(255,255,255,0.8); }
.page-banner .breadcrumb a:hover { color: var(--accent); }
.page-banner .breadcrumb span { color: var(--accent); }
@media (max-width: 768px) { .page-banner { padding: 40px 0 32px; } }
/* ===== Article Detail ===== */
.article-detail { padding: 60px 0 80px; }
.article-detail .container { max-width: 860px; }
.article-header { margin-bottom: 36px; }
.article-header .category-tag {
  display: inline-block; padding: 4px 16px; border-radius: 20px;
  background: rgba(232,73,29,0.10); color: var(--secondary);
  font-size: 0.85rem; font-weight: 600; margin-bottom: 16px;
}
.article-header h1 { font-size: clamp(1.6rem, 3.2vw, 2.4rem); margin-bottom: 16px; color: var(--text-dark); }
.article-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 18px; color: var(--text-light); font-size: 0.9rem; }
.article-meta i { margin-right: 6px; color: var(--primary-light); }
.article-meta .meta-item { display: flex; align-items: center; }
.article-cover { margin: 32px 0; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-md); }
.article-cover img { width: 100%; height: auto; max-height: 480px; object-fit: cover; }
.article-body { font-size: 1.05rem; line-height: 1.9; color: var(--text-body); }
.article-body p { margin-bottom: 1.4em; }
.article-body h2, .article-body h3 { margin-top: 2em; margin-bottom: 0.8em; }
.article-body ul, .article-body ol { margin-bottom: 1.4em; padding-left: 1.6em; }
.article-body ul { list-style: disc; }
.article-body ol { list-style: decimal; }
.article-body li { margin-bottom: 0.5em; }
.article-body blockquote {
  margin: 1.8em 0; padding: 20px 28px; border-left: 4px solid var(--secondary);
  background: var(--bg-light); border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic; color: var(--text-dark);
}
.article-body img { border-radius: var(--radius-md); margin: 1.5em 0; box-shadow: var(--shadow-sm); }
.article-body a { color: var(--secondary); text-decoration: underline; text-underline-offset: 2px; }
.article-body a:hover { color: var(--secondary-dark); }
.article-footer { margin-top: 48px; padding-top: 32px; border-top: 1px solid var(--border); display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 16px; }
.article-footer .tags { display: flex; flex-wrap: wrap; gap: 8px; }
.article-footer .tag { display: inline-block; padding: 4px 14px; border-radius: 16px; background: var(--bg-light); color: var(--text-light); font-size: 0.85rem; transition: var(--transition); }
.article-footer .tag:hover { background: var(--primary); color: var(--text-white); }
.article-footer .share { display: flex; align-items: center; gap: 10px; }
.article-footer .share span { font-size: 0.9rem; color: var(--text-light); }
.article-footer .share a { display: inline-flex; align-items: center; justify-content: center; width: 38px; height: 38px; border-radius: 50%; background: var(--bg-light); color: var(--text-light); font-size: 1rem; transition: var(--transition); }
.article-footer .share a:hover { background: var(--primary); color: var(--text-white); transform: translateY(-2px); }
.article-nav { margin-top: 48px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px; }
.article-nav a { display: inline-flex; align-items: center; gap: 8px; padding: 10px 20px; border-radius: var(--radius-sm); border: 1px solid var(--border); background: var(--bg-white); font-size: 0.9rem; transition: var(--transition); }
.article-nav a:hover { border-color: var(--primary); color: var(--primary); box-shadow: var(--shadow-sm); }
.article-not-found { text-align: center; padding: 60px 0; }
.article-not-found i { font-size: 3rem; color: var(--text-light); margin-bottom: 16px; }
.article-not-found h2 { color: var(--text-dark); margin-bottom: 12px; }
.article-not-found p { color: var(--text-light); margin-bottom: 24px; }
.article-not-found .btn-primary { display: inline-flex; }
@media (max-width: 768px) {
  .article-detail { padding: 32px 0 48px; }
  .article-footer { flex-direction: column; align-items: flex-start; }
  .article-nav { flex-direction: column; }
}
/* ===== Related Section ===== */
.related-section { padding: 60px 0 80px; background: var(--bg-light); }
.related-section .section-title { text-align: center; margin-bottom: 40px; }
.related-section .section-title h2 { font-size: clamp(1.4rem, 2.6vw, 2rem); }
.related-section .section-title p { color: var(--text-light); margin-top: 8px; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.related-card {
  background: var(--bg-white); border-radius: var(--radius-md);
  overflow: hidden; box-shadow: var(--shadow-sm); transition: var(--transition);
  border: 1px solid var(--border);
}
.related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.related-card .card-img { height: 180px; overflow: hidden; }
.related-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
.related-card:hover .card-img img { transform: scale(1.05); }
.related-card .card-body { padding: 20px; }
.related-card .card-body h3 { font-size: 1rem; margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-card .card-body h3 a { color: var(--text-dark); }
.related-card .card-body h3 a:hover { color: var(--secondary); }
.related-card .card-body .card-meta { font-size: 0.85rem; color: var(--text-light); display: flex; align-items: center; gap: 12px; }
@media (max-width: 900px) {
  .related-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .related-grid { grid-template-columns: 1fr; }
}
/* ===== Footer ===== */
.site-footer {
  background: var(--bg-dark); color: rgba(255,255,255,0.75);
  padding: 60px 0 0; position: relative;
}
.site-footer::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: linear-gradient(90deg, var(--secondary), var(--accent), var(--primary-light));
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,0.08); }
.footer-brand .logo a { color: var(--text-white); font-size: 1.2rem; }
.footer-brand .logo a span { -webkit-text-fill-color: #fff; }
.footer-brand .logo a i { color: var(--accent); }
.footer-brand p { margin-top: 16px; font-size: 0.9rem; line-height: 1.7; color: rgba(255,255,255,0.6); }
.footer-col h4 { color: var(--text-white); font-size: 1rem; margin-bottom: 18px; font-weight: 600; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { color: rgba(255,255,255,0.6); font-size: 0.9rem; transition: var(--transition); display: inline-flex; align-items: center; gap: 6px; }
.footer-col ul li a:hover { color: var(--accent); transform: translateX(4px); }
.footer-bottom { padding: 24px 0; display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 12px; font-size: 0.85rem; color: rgba(255,255,255,0.45); }
.footer-bottom a { color: rgba(255,255,255,0.6); }
.footer-bottom a:hover { color: var(--accent); }
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; } .footer-brand { grid-column: 1 / -1; } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; gap: 24px; } .footer-bottom { flex-direction: column; text-align: center; } }
/* ===== Back to Top ===== */
.back-to-top {
  position: fixed; bottom: 30px; right: 30px; width: 48px; height: 48px;
  border-radius: 50%; background: var(--primary); color: var(--text-white);
  border: none; font-size: 1.2rem; cursor: pointer; box-shadow: var(--shadow-md);
  transition: var(--transition); opacity: 0; pointer-events: none; z-index: 999;
  display: flex; align-items: center; justify-content: center;
}
.back-to-top.visible { opacity: 1; pointer-events: auto; }
.back-to-top:hover { background: var(--secondary); transform: translateY(-4px); box-shadow: var(--shadow-lg); }
/* ===== Utility ===== */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }
.text-center { text-align: center; }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b7a;
            --primary-gradient: linear-gradient(135deg, #e63946 0%, #c1121f 100%);
            --secondary: #1d3557;
            --secondary-light: #2a4a7a;
            --accent: #f4a261;
            --accent-gold: #e9c46a;
            --bg-body: #f8f9fa;
            --bg-card: #ffffff;
            --bg-dark: #1a1a2e;
            --bg-dark-alt: #16213e;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-muted: #8a8aaa;
            --text-inverse: #ffffff;
            --border-color: #e8e8f0;
            --border-light: #f0f0f8;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --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-hover: 0 12px 40px rgba(230,57,70,0.20);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --container-width: 1200px;
            --header-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: inherit; text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary); }
        ul, ol { list-style: none; }
        button, input, textarea { font-family: inherit; font-size: inherit; border: none; outline: none; }
        button { cursor: pointer; background: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text-primary); }
        h1 { font-size: 2.8rem; }
        h2 { font-size: 2.2rem; }
        h3 { font-size: 1.5rem; }
        h4 { font-size: 1.2rem; }

        /* ===== Container ===== */
        .container {
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Utility ===== */
        .section-padding { padding: 80px 0; }
        .section-title {
            text-align: center;
            margin-bottom: 16px;
            font-size: 2.2rem;
            position: relative;
        }
        .section-subtitle {
            text-align: center;
            color: var(--text-secondary);
            font-size: 1.1rem;
            max-width: 640px;
            margin: 0 auto 48px;
        }
        .section-title i { color: var(--primary); margin-right: 10px; }
        .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.5px;
        }
        .badge-primary { background: var(--primary); color: #fff; }
        .badge-secondary { background: var(--secondary); color: #fff; }
        .badge-accent { background: var(--accent); color: #fff; }
        .badge-outline { border: 1px solid var(--border-color); color: var(--text-secondary); background: transparent; }
        .text-center { text-align: center; }
        .mt-16 { margin-top: 16px; }
        .mt-24 { margin-top: 24px; }
        .mt-32 { margin-top: 32px; }
        .mb-16 { margin-bottom: 16px; }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            border: 2px solid transparent;
        }
        .btn i { font-size: 1.1em; }
        .btn-primary {
            background: var(--primary-gradient);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(230,57,70,0.35);
        }
        .btn-secondary {
            background: var(--secondary);
            color: #fff;
            border-color: var(--secondary);
        }
        .btn-secondary:hover {
            background: var(--secondary-light);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(29,53,87,0.35);
        }
        .btn-outline {
            background: transparent;
            color: var(--text-primary);
            border-color: var(--border-color);
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
        }
        .btn-white {
            background: #fff;
            color: var(--primary);
            border-color: #fff;
        }
        .btn-white:hover {
            background: var(--bg-body);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(255,255,255,0.3);
        }
        .btn-lg { padding: 16px 40px; font-size: 1.1rem; }
        .btn-sm { padding: 8px 18px; font-size: 0.85rem; }

        /* ===== Header & Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--header-height);
            background: rgba(255,255,255,0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            z-index: 1000;
            transition: var(--transition);
        }
        .site-header:hover { box-shadow: var(--shadow-sm); }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo a {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--text-primary);
        }
        .logo a i {
            color: var(--primary);
            font-size: 1.5rem;
            background: linear-gradient(135deg, #e63946, #c1121f);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .logo a span { background: var(--primary-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
        .main-nav ul {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .main-nav a {
            padding: 8px 18px;
            border-radius: 8px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            font-size: 0.95rem;
        }
        .main-nav a:hover { color: var(--primary); background: rgba(230,57,70,0.06); }
        .main-nav .active a { color: var(--primary); background: rgba(230,57,70,0.10); font-weight: 600; }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .nav-actions .search-toggle {
            width: 40px; height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            background: var(--bg-body);
            transition: var(--transition);
        }
        .nav-actions .search-toggle:hover { background: var(--primary); color: #fff; }
        .nav-actions .btn-nav-login {
            padding: 8px 20px;
            border-radius: 50px;
            font-weight: 600;
            color: var(--text-primary);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            font-size: 0.9rem;
        }
        .nav-actions .btn-nav-login:hover { border-color: var(--primary); color: var(--primary); }
        .nav-actions .btn-nav-start {
            padding: 8px 22px;
            border-radius: 50px;
            font-weight: 600;
            background: var(--primary-gradient);
            color: #fff;
            transition: var(--transition);
            font-size: 0.9rem;
            box-shadow: 0 4px 15px rgba(230,57,70,0.25);
        }
        .nav-actions .btn-nav-start:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(230,57,70,0.35); color: #fff; }

        .mobile-toggle {
            display: none;
            width: 40px; height: 40px;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--text-primary);
            background: var(--bg-body);
            border-radius: 8px;
        }
        .mobile-toggle:hover { background: var(--border-light); }

        /* ===== Page Banner ===== */
        .page-banner {
            padding-top: calc(var(--header-height) + 20px);
            min-height: 380px;
            display: flex;
            align-items: center;
            position: relative;
            background: var(--secondary);
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.25;
            z-index: 1;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26,26,46,0.85) 0%, rgba(22,33,62,0.80) 100%);
            z-index: 2;
        }
        .page-banner .container { position: relative; z-index: 3; width: 100%; }
        .page-banner .breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255,255,255,0.7);
            font-size: 0.9rem;
            margin-bottom: 20px;
        }
        .page-banner .breadcrumb a { color: rgba(255,255,255,0.7); }
        .page-banner .breadcrumb a:hover { color: #fff; }
        .page-banner .breadcrumb span { color: rgba(255,255,255,0.5); }
        .page-banner h1 {
            color: #fff;
            font-size: 3rem;
            max-width: 700px;
            margin-bottom: 16px;
            line-height: 1.2;
        }
        .page-banner h1 i { color: var(--accent-gold); margin-right: 12px; }
        .page-banner p {
            color: rgba(255,255,255,0.85);
            font-size: 1.15rem;
            max-width: 600px;
            line-height: 1.8;
        }
        .page-banner .banner-stats {
            display: flex;
            gap: 40px;
            margin-top: 32px;
        }
        .page-banner .banner-stats .stat-item {
            color: #fff;
        }
        .page-banner .banner-stats .stat-number {
            font-size: 2rem;
            font-weight: 800;
            display: block;
            line-height: 1.2;
        }
        .page-banner .banner-stats .stat-label {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.7);
        }

        /* ===== Guide Steps Section ===== */
        .guide-steps {
            background: var(--bg-body);
        }
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 30px;
            margin-top: 16px;
        }
        .step-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 36px 28px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            position: relative;
        }
        .step-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(230,57,70,0.15);
        }
        .step-card .step-number {
            width: 56px; height: 56px;
            border-radius: 50%;
            background: var(--primary-gradient);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            font-weight: 800;
            margin: 0 auto 18px;
            box-shadow: 0 8px 25px rgba(230,57,70,0.25);
        }
        .step-card h3 { font-size: 1.2rem; margin-bottom: 10px; }
        .step-card p { color: var(--text-secondary); font-size: 0.95rem; line-height: 1.7; }
        .step-card .step-icon { font-size: 2rem; color: var(--primary); margin-bottom: 12px; }

        /* ===== Login Methods Section ===== */
        .login-methods {
            background: var(--bg-card);
        }
        .methods-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }
        .method-card {
            background: var(--bg-body);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            border: 1px solid var(--border-light);
            transition: var(--transition);
            display: flex;
            gap: 18px;
            align-items: flex-start;
        }
        .method-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(230,57,70,0.12);
        }
        .method-card .method-icon {
            width: 52px; height: 52px;
            border-radius: var(--radius-sm);
            background: rgba(230,57,70,0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--primary);
            flex-shrink: 0;
        }
        .method-card .method-info h4 { font-size: 1.1rem; margin-bottom: 6px; }
        .method-card .method-info p { color: var(--text-secondary); font-size: 0.9rem; line-height: 1.6; }
        .method-card .method-info .method-tag {
            display: inline-block;
            margin-top: 10px;
            padding: 2px 12px;
            border-radius: 12px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(230,57,70,0.08);
            color: var(--primary);
        }

        /* ===== FAQ Section ===== */
        .faq-section {
            background: var(--bg-body);
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: rgba(230,57,70,0.15); }
        .faq-item summary {
            padding: 20px 24px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 12px;
            list-style: none;
            transition: var(--transition);
        }
        .faq-item summary::-webkit-details-marker { display: none; }
        .faq-item summary i {
            color: var(--primary);
            font-size: 1.1rem;
            width: 24px;
            text-align: center;
            transition: var(--transition);
        }
        .faq-item summary .faq-arrow {
            margin-left: auto;
            transition: var(--transition);
            color: var(--text-muted);
        }
        .faq-item[open] summary .faq-arrow { transform: rotate(180deg); color: var(--primary); }
        .faq-item[open] summary { background: rgba(230,57,70,0.03); }
        .faq-item .faq-answer {
            padding: 0 24px 20px 60px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.8;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: var(--secondary);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: 0.12;
            z-index: 1;
        }
        .cta-section .container { position: relative; z-index: 2; text-align: center; }
        .cta-section h2 { color: #fff; font-size: 2.4rem; margin-bottom: 16px; }
        .cta-section p { color: rgba(255,255,255,0.8); font-size: 1.1rem; max-width: 600px; margin: 0 auto 32px; }
        .cta-section .cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

        /* ===== Related Content ===== */
        .related-content {
            background: var(--bg-card);
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }
        .related-card {
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: var(--transition);
            background: var(--bg-body);
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(230,57,70,0.12);
        }
        .related-card .card-img {
            height: 180px;
            background: var(--secondary);
            position: relative;
            overflow: hidden;
        }
        .related-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .related-card:hover .card-img img { transform: scale(1.05); }
        .related-card .card-img .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--primary);
            color: #fff;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
        }
        .related-card .card-body {
            padding: 20px;
        }
        .related-card .card-body h4 {
            font-size: 1.05rem;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .related-card .card-body p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.6;
            margin-bottom: 12px;
        }
        .related-card .card-body .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .related-card .card-body .card-meta i { margin-right: 4px; }

        /* ===== Tools / Resources ===== */
        .tools-section {
            background: var(--bg-body);
        }
        .tools-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
        }
        .tool-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px 20px;
            text-align: center;
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .tool-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(230,57,70,0.12);
        }
        .tool-item i {
            font-size: 2.2rem;
            color: var(--primary);
            margin-bottom: 12px;
            display: block;
        }
        .tool-item h4 { font-size: 1rem; margin-bottom: 6px; }
        .tool-item p { color: var(--text-secondary); font-size: 0.85rem; }

        /* ===== Site Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.8);
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo a { color: #fff; font-size: 1.3rem; }
        .footer-brand .logo a span { -webkit-text-fill-color: #fff; background: none; }
        .footer-brand .logo a i { -webkit-text-fill-color: var(--primary); }
        .footer-brand p { margin-top: 16px; font-size: 0.9rem; line-height: 1.8; color: rgba(255,255,255,0.6); }
        .footer-col h4 { color: #fff; margin-bottom: 18px; font-size: 1.05rem; }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul a { color: rgba(255,255,255,0.6); font-size: 0.9rem; transition: var(--transition); display: flex; align-items: center; gap: 8px; }
        .footer-col ul a:hover { color: var(--primary); padding-left: 4px; }
        .footer-col ul a i { width: 18px; text-align: center; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding: 24px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.5);
        }
        .footer-bottom a { color: rgba(255,255,255,0.6); }
        .footer-bottom a:hover { color: var(--primary); }

        /* ===== Mobile Nav ===== */
        @media (max-width: 1024px) {
            .main-nav { display: none; }
            .main-nav.open {
                display: block;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(255,255,255,0.98);
                backdrop-filter: blur(12px);
                border-bottom: 1px solid var(--border-light);
                padding: 16px 24px;
                box-shadow: var(--shadow-md);
            }
            .main-nav.open ul { flex-direction: column; gap: 4px; }
            .main-nav.open a { display: block; padding: 12px 16px; border-radius: 8px; }
            .mobile-toggle { display: flex; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .page-banner h1 { font-size: 2.2rem; }
            .page-banner .banner-stats { gap: 24px; }
            .section-title { font-size: 1.8rem; }
        }

        @media (max-width: 768px) {
            .header-inner { padding: 0 4px; }
            .nav-actions .btn-nav-login, .nav-actions .btn-nav-start { display: none; }
            .page-banner { min-height: 300px; }
            .page-banner h1 { font-size: 1.8rem; }
            .page-banner p { font-size: 1rem; }
            .page-banner .banner-stats { flex-wrap: wrap; gap: 16px; }
            .page-banner .banner-stats .stat-number { font-size: 1.5rem; }
            .section-padding { padding: 50px 0; }
            .section-subtitle { font-size: 1rem; margin-bottom: 32px; }
            .steps-grid { grid-template-columns: 1fr; }
            .methods-grid { grid-template-columns: 1fr; }
            .related-grid { grid-template-columns: 1fr; }
            .tools-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .cta-section h2 { font-size: 1.8rem; }
            .faq-item summary { padding: 16px 18px; font-size: 0.95rem; }
            .faq-item .faq-answer { padding: 0 18px 16px 48px; }
            .method-card { flex-direction: column; align-items: center; text-align: center; }
            .container { padding: 0 16px; }
        }

        @media (max-width: 520px) {
            .logo a { font-size: 1.1rem; }
            .page-banner h1 { font-size: 1.5rem; }
            .tools-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
            .tool-item { padding: 20px 12px; }
            .tool-item i { font-size: 1.6rem; }
            .step-card { padding: 24px 18px; }
            .cta-section .cta-buttons .btn { width: 100%; justify-content: center; }
        }