/* roulang page: index */
:root{
  --primary:#0e1f38;--primary-2:#1a3050;--accent:#d4a854;--accent-2:#e8c878;
  --bg:#f4f6fb;--bg-deep:#e9edf5;--card:#ffffff;--text:#182235;--text-light:#5a6478;
  --border:#e2e7f0;--radius-lg:20px;--radius-md:14px;--radius-sm:8px;
  --shadow-sm:0 2px 12px rgba(14,31,56,.06);--shadow-md:0 6px 30px rgba(14,31,56,.09);
  --shadow-lg:0 12px 48px rgba(14,31,56,.14);--sidebar-w:260px;
  --space:84px;--transition:all .28s cubic-bezier(.4,0,.2,1)
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",sans-serif;line-height:1.75;color:var(--text);background:var(--bg)}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit;transition:var(--transition)}
button{font-family:inherit;border:none;cursor:pointer}
input,textarea{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.container{max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:var(--space) 0}
.section-alt{background:var(--bg-deep)}
.section-head{text-align:center;max-width:680px;margin:0 auto 52px}
.section-head h2{font-size:34px;font-weight:700;color:var(--primary);letter-spacing:-.5px;margin-bottom:12px}
.section-head p{font-size:16px;color:var(--text-light)}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;border-radius:999px;font-size:15px;font-weight:600;transition:var(--transition);line-height:1}
.btn-primary{background:var(--accent);color:#0e1f38;box-shadow:0 4px 20px rgba(212,168,84,.35)}
.btn-primary:hover{background:var(--accent-2);transform:translateY(-2px);box-shadow:0 8px 30px rgba(212,168,84,.45)}
.btn-ghost{border:1.5px solid rgba(255,255,255,.5);color:#fff;background:rgba(255,255,255,.08);backdrop-filter:blur(6px)}
.btn-ghost:hover{background:rgba(255,255,255,.18);border-color:#fff;transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--primary);box-shadow:0 4px 20px rgba(0,0,0,.15)}
.btn-light:hover{transform:translateY(-2px);background:var(--accent-2);color:var(--primary)}
.btn-outline-light{border:1.5px solid rgba(255,255,255,.7);color:#fff;background:transparent}
.btn-outline-light:hover{background:rgba(255,255,255,.15);transform:translateY(-2px)}
.badge{display:inline-block;padding:4px 14px;border-radius:999px;font-size:13px;font-weight:600;background:rgba(212,168,84,.15);color:var(--accent)}
.app-shell{display:flex;min-height:100vh}
.sidebar{position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);background:linear-gradient(180deg,#0e1f38 0%,#162a50 100%);z-index:1000;display:flex;flex-direction:column;box-shadow:4px 0 24px rgba(14,31,56,.15)}
.sidebar-logo{display:flex;align-items:center;gap:12px;padding:28px 24px 22px;border-bottom:1px solid rgba(255,255,255,.08)}
.sidebar-logo .logo-icon{width:42px;height:42px;border-radius:12px;background:linear-gradient(135deg,var(--accent),var(--accent-2));display:flex;align-items:center;justify-content:center;color:#0e1f38;font-size:20px;font-weight:800;flex-shrink:0}
.sidebar-logo .logo-text{font-size:17px;font-weight:700;color:#fff;letter-spacing:.5px;line-height:1.3}
.sidebar-nav{padding:20px 14px;flex:1;display:flex;flex-direction:column;gap:4px}
.nav-item{display:flex;align-items:center;gap:14px;padding:14px 18px;border-radius:12px;color:rgba(255,255,255,.65);font-size:15px;font-weight:500;transition:var(--transition)}
.nav-item i{width:20px;text-align:center;font-size:16px}
.nav-item:hover{background:rgba(255,255,255,.08);color:#fff;transform:translateX(4px)}
.nav-item.active{background:linear-gradient(135deg,rgba(212,168,84,.25),rgba(212,168,84,.1));color:var(--accent-2);font-weight:600;box-shadow:inset 0 0 0 1px rgba(212,168,84,.2)}
.sidebar-foot{padding:22px 24px;border-top:1px solid rgba(255,255,255,.08);font-size:12px;color:rgba(255,255,255,.4);line-height:1.6}
.sidebar-mask{position:fixed;inset:0;background:rgba(14,31,56,.5);backdrop-filter:blur(2px);z-index:999;opacity:0;visibility:hidden;transition:var(--transition)}
.sidebar-mask.show{opacity:1;visibility:visible}
.main-area{flex:1;margin-left:var(--sidebar-w);min-width:0;display:flex;flex-direction:column}
.mobile-header{display:none;position:sticky;top:0;z-index:900;background:rgba(14,31,56,.95);backdrop-filter:blur(12px);padding:14px 20px;align-items:center;justify-content:space-between}
.mobile-header .mobile-logo{color:#fff;font-weight:700;font-size:16px;display:flex;align-items:center;gap:10px}
.mobile-header .menu-btn{background:rgba(255,255,255,.12);color:#fff;width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:18px}
/* Hero */
.hero{position:relative;background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;padding:110px 0 100px;color:#fff}
.hero::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(14,31,56,.92) 0%,rgba(14,31,56,.7) 50%,rgba(212,168,84,.25) 100%)}
.hero-inner{position:relative;z-index:2;max-width:720px}
.hero-badge{display:inline-flex;align-items:center;gap:10px;padding:8px 20px;border-radius:999px;background:rgba(255,255,255,.12);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.2);font-size:14px;font-weight:500;margin-bottom:24px}
.hero-badge i{color:var(--accent-2)}
.hero h1{font-size:52px;font-weight:800;line-height:1.15;letter-spacing:-1px;margin-bottom:16px;text-shadow:0 4px 30px rgba(0,0,0,.2)}
.hero-subtitle{font-size:20px;font-weight:600;color:var(--accent-2);margin-bottom:16px}
.hero-desc{font-size:16px;line-height:1.8;color:rgba(255,255,255,.8);margin-bottom:32px;max-width:560px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:48px}
.hero-stats{display:flex;gap:48px;flex-wrap:wrap}
.hero-stat{display:flex;flex-direction:column}
.hero-stat .num{font-size:32px;font-weight:800;color:#fff;line-height:1.2}
.hero-stat .label{font-size:13px;color:rgba(255,255,255,.6);margin-top:4px}
/* 核心服务 */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.feature-card{background:var(--card);border-radius:var(--radius-lg);padding:36px 30px;box-shadow:var(--shadow-sm);border:1px solid rgba(255,255,255,.6);transition:var(--transition);position:relative;overflow:hidden}
.feature-card::after{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--accent),var(--accent-2));opacity:0;transition:var(--transition)}
.feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md)}
.feature-card:hover::after{opacity:1}
.feature-icon{width:64px;height:64px;border-radius:18px;background:linear-gradient(135deg,rgba(212,168,84,.15),rgba(212,168,84,.05));display:flex;align-items:center;justify-content:center;font-size:26px;color:var(--accent);margin-bottom:22px}
.feature-card h3{font-size:19px;font-weight:700;color:var(--primary);margin-bottom:10px}
.feature-card p{font-size:14px;color:var(--text-light);line-height:1.7}
/* 分类入口 */
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.cat-card{position:relative;border-radius:var(--radius-lg);overflow:hidden;background:#fff;box-shadow:var(--shadow-sm);transition:var(--transition);display:flex;flex-direction:column}
.cat-card img{height:180px;width:100%;object-fit:cover;transition:var(--transition)}
.cat-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg)}
.cat-card:hover img{transform:scale(1.05)}
.cat-body{padding:24px;flex:1;display:flex;flex-direction:column}
.cat-body .badge{align-self:flex-start;margin-bottom:12px}
.cat-body h3{font-size:20px;font-weight:700;color:var(--primary);margin-bottom:8px}
.cat-body p{font-size:14px;color:var(--text-light);flex:1;line-height:1.7;margin-bottom:16px}
.cat-link{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--accent)}
.cat-link i{transition:var(--transition)}
.cat-card:hover .cat-link i{transform:translateX(4px)}
/* 最新信息 */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.news-card{background:var(--card);border-radius:var(--radius-md);padding:28px;box-shadow:var(--shadow-sm);border:1px solid rgba(255,255,255,.5);transition:var(--transition);display:flex;flex-direction:column}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.news-meta{display:flex;align-items:center;gap:14px;margin-bottom:12px}
.news-time{font-size:13px;color:var(--text-light);display:flex;align-items:center;gap:6px}
.news-card h3{font-size:18px;font-weight:700;line-height:1.4;margin-bottom:10px;color:var(--primary)}
.news-card h3 a{transition:var(--transition)}
.news-card h3 a:hover{color:var(--accent)}
.news-card p{font-size:14px;color:var(--text-light);line-height:1.7;flex:1;margin-bottom:16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.read-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--accent)}
.read-more i{transition:var(--transition)}
.read-more:hover i{transform:translateX(4px)}
.empty-tip{padding:60px;text-align:center;color:var(--text-light);font-size:16px;background:var(--card);border-radius:var(--radius-lg);grid-column:1/-1}
/* 数据 */
.stat-banner{background:linear-gradient(120deg,var(--primary),var(--primary-2));padding:64px 0;position:relative;overflow:hidden}
.stat-banner::before{content:'';position:absolute;top:-60px;right:-60px;width:240px;height:240px;border-radius:50%;background:rgba(212,168,84,.1)}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:40px;position:relative;z-index:2}
.stat-item{text-align:center;color:#fff}
.stat-num{font-size:40px;font-weight:800;display:block;line-height:1.1;background:linear-gradient(135deg,var(--accent-2),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.stat-label{font-size:14px;color:rgba(255,255,255,.65);margin-top:8px;display:block}
/* 流程 */
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;position:relative}
.steps-grid::before{content:'';position:absolute;top:42px;left:10%;right:10%;height:2px;background:linear-gradient(90deg,var(--accent),rgba(212,168,84,.1));z-index:0}
.step-item{text-align:center;padding:0 12px;position:relative;z-index:1}
.step-num{width:64px;height:64px;border-radius:50%;background:var(--card);border:2px solid var(--accent);display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:800;color:var(--primary);margin:0 auto 20px;box-shadow:0 6px 20px rgba(212,168,84,.2)}
.step-item h3{font-size:17px;font-weight:700;color:var(--primary);margin-bottom:8px}
.step-item p{font-size:14px;color:var(--text-light);line-height:1.7}
/* 图文优势 */
.feature-alt{display:flex;flex-direction:column;gap:48px}
.feature-alt-item{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.feature-alt-item img{border-radius:var(--radius-lg);box-shadow:var(--shadow-md);width:100%;height:280px;object-fit:cover}
.feature-alt-text{padding:20px 0}
.feature-tag{display:inline-block;padding:5px 16px;border-radius:999px;background:rgba(212,168,84,.12);color:var(--accent);font-size:13px;font-weight:600;margin-bottom:16px}
.feature-alt-text h3{font-size:28px;font-weight:700;color:var(--primary);margin-bottom:14px;line-height:1.3}
.feature-alt-text p{font-size:15px;color:var(--text-light);line-height:1.8}
/* FAQ */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:var(--card);border-radius:var(--radius-md);margin-bottom:16px;box-shadow:var(--shadow-sm);border:1px solid rgba(255,255,255,.5);transition:var(--transition)}
.faq-item:hover{box-shadow:var(--shadow-md)}
.faq-item summary{display:flex;justify-content:space-between;align-items:center;padding:22px 28px;cursor:pointer;font-size:16px;font-weight:600;color:var(--primary);list-style:none;gap:16px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:'\f078';font-family:'Font Awesome 6 Free';font-weight:900;font-size:14px;color:var(--accent);transition:var(--transition)}
.faq-item[open] summary::after{transform:rotate(180deg)}
.faq-item p{padding:0 28px 24px;color:var(--text-light);font-size:15px;line-height:1.8}
/* CTA */
.cta-section{padding:0 0 var(--space)}
.cta-box{background:linear-gradient(135deg,var(--primary),var(--primary-2));border-radius:var(--radius-lg);padding:64px;text-align:center;position:relative;overflow:hidden}
.cta-box::before{content:'';position:absolute;top:-80px;left:-80px;width:220px;height:220px;border-radius:50%;background:rgba(212,168,84,.15)}
.cta-box::after{content:'';position:absolute;bottom:-60px;right:-60px;width:180px;height:180px;border-radius:50%;background:rgba(212,168,84,.08)}
.cta-box h2{font-size:32px;font-weight:800;color:#fff;margin-bottom:12px;position:relative;z-index:2}
.cta-box p{font-size:16px;color:rgba(255,255,255,.7);margin-bottom:32px;position:relative;z-index:2}
.cta-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;position:relative;z-index:2}
/* 页脚 */
.site-footer{background:var(--primary);color:rgba(255,255,255,.7);padding:60px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:48px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer-logo{font-size:20px;font-weight:800;color:#fff;margin-bottom:14px}
.footer-brand p{font-size:14px;line-height:1.8;max-width:300px}
.footer-links h4,.footer-contact h4{font-size:16px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-links a{display:block;font-size:14px;padding:5px 0;color:rgba(255,255,255,.6);transition:var(--transition)}
.footer-links a:hover{color:var(--accent-2)}
.footer-contact p{font-size:14px;padding:3px 0;color:rgba(255,255,255,.6)}
.footer-bottom{text-align:center;padding:24px 0;font-size:13px;color:rgba(255,255,255,.4)}
/* 响应式 */
@media(max-width:1024px){
  .sidebar{transform:translateX(-100%);transition:var(--transition)}
  .sidebar.open{transform:translateX(0)}
  .main-area{margin-left:0}
  .mobile-header{display:flex}
  .feature-grid{grid-template-columns:repeat(3,1fr)}
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .steps-grid{grid-template-columns:repeat(2,1fr);gap:40px}
  .steps-grid::before{display:none}
  .feature-alt-item{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  :root{--space:56px}
  .container{padding:0 20px}
  .hero{padding:80px 0 70px}
  .hero h1{font-size:36px}
  .feature-grid{grid-template-columns:1fr}
  .cat-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .steps-grid{grid-template-columns:1fr}
  .cta-box{padding:44px 24px}
  .cta-box h2{font-size:26px}
  .footer-grid{grid-template-columns:1fr}
  .hero-stats{gap:24px}
  .hero-stat .num{font-size:26px}
}
@media(max-width:520px){
  .section-head h2{font-size:26px}
  .hero h1{font-size:30px}
  .hero-subtitle{font-size:17px}
  .hero-actions .btn{width:100%;justify-content:center}
}

:root{
  --primary:#0e1f38;--primary-2:#1a3050;--accent:#d4a854;--accent-2:#e8c878;
  --bg:#f4f6fb;--bg-deep:#e9edf5;--card:#ffffff;--text:#182235;--text-light:#5a6478;
  --border:#e2e7f0;--radius-lg:20px;--radius-md:14px;--radius-sm:8px;
  --shadow-sm:0 2px 12px rgba(14,31,56,.06);--shadow-md:0 6px 30px rgba(14,31,56,.09);
  --shadow-lg:0 12px 48px rgba(14,31,56,.14);--sidebar-w:260px;
  --space:84px;--transition:all .28s cubic-bezier(.4,0,.2,1)
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",sans-serif;line-height:1.75;color:var(--text);background:var(--bg)}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit;transition:var(--transition)}
button{font-family:inherit;border:none;cursor:pointer}
input,textarea{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.container{max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:var(--space) 0}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 30px;border-radius:999px;font-size:15px;font-weight:600;transition:var(--transition);line-height:1}
.btn-primary{background:var(--accent);color:#0e1f38;box-shadow:0 4px 20px rgba(212,168,84,.35)}
.btn-primary:hover{background:var(--accent-2);transform:translateY(-2px)}
.badge{display:inline-block;padding:4px 14px;border-radius:999px;font-size:13px;font-weight:600;background:rgba(212,168,84,.15);color:var(--accent)}
.app-shell{display:flex;min-height:100vh}
.sidebar{position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);background:linear-gradient(180deg,#0e1f38 0%,#162a50 100%);z-index:1000;display:flex;flex-direction:column;box-shadow:4px 0 24px rgba(14,31,56,.15)}
.sidebar-logo{display:flex;align-items:center;gap:12px;padding:28px 24px 22px;border-bottom:1px solid rgba(255,255,255,.08)}
.sidebar-logo .logo-icon{width:42px;height:42px;border-radius:12px;background:linear-gradient(135deg,var(--accent),var(--accent-2));display:flex;align-items:center;justify-content:center;color:#0e1f38;font-size:20px;font-weight:800;flex-shrink:0}
.sidebar-logo .logo-text{font-size:17px;font-weight:700;color:#fff;letter-spacing:.5px;line-height:1.3}
.sidebar-nav{padding:20px 14px;flex:1;display:flex;flex-direction:column;gap:4px}
.nav-item{display:flex;align-items:center;gap:14px;padding:14px 18px;border-radius:12px;color:rgba(255,255,255,.65);font-size:15px;font-weight:500;transition:var(--transition)}
.nav-item i{width:20px;text-align:center;font-size:16px}
.nav-item:hover{background:rgba(255,255,255,.08);color:#fff;transform:translateX(4px)}
.nav-item.active{background:linear-gradient(135deg,rgba(212,168,84,.25),rgba(212,168,84,.1));color:var(--accent-2);font-weight:600;box-shadow:inset 0 0 0 1px rgba(212,168,84,.2)}
.sidebar-foot{padding:22px 24px;border-top:1px solid rgba(255,255,255,.08);font-size:12px;color:rgba(255,255,255,.4);line-height:1.6}
.sidebar-mask{position:fixed;inset:0;background:rgba(14,31,56,.5);backdrop-filter:blur(2px);z-index:999;opacity:0;visibility:hidden;transition:var(--transition)}
.sidebar-mask.show{opacity:1;visibility:visible}
.main-area{flex:1;margin-left:var(--sidebar-w);min-width:0;display:flex;flex-direction:column}
.mobile-header{display:none;position:sticky;top:0;z-index:900;background:rgba(14,31,56,.95);backdrop-filter:blur(12px);padding:14px 20px;align-items:center;justify-content:space-between}
.mobile-header .mobile-logo{color:#fff;font-weight:700;font-size:16px;display:flex;align-items:center;gap:10px}
.mobile-header .menu-btn{background:rgba(255,255,255,.12);color:#fff;width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:18px}
/* 文章页 */
.page-banner{background:linear-gradient(120deg,var(--primary),var(--primary-2));padding:64px 0 70px;color:#fff;position:relative;overflow:hidden}
.page-banner::before{content:'';position:absolute;top:-80px;right:-40px;width:280px;height:280px;border-radius:50%;background:rgba(212,168,84,.12)}
.page-banner::after{content:'';position:absolute;bottom:-60px;left:20%;width:160px;height:160px;border-radius:50%;background:rgba(212,168,84,.06)}
.page-banner .container{position:relative;z-index:2}
.page-banner .breadcrumb{font-size:13px;color:rgba(255,255,255,.6);margin-bottom:18px;display:flex;gap:8px;align-items:center}
.page-banner .breadcrumb a{color:rgba(255,255,255,.7)}
.page-banner .breadcrumb a:hover{color:var(--accent-2)}
.page-banner h1{font-size:34px;font-weight:800;line-height:1.3;margin-bottom:16px;max-width:800px}
.page-banner .banner-meta{display:flex;gap:20px;flex-wrap:wrap;font-size:14px;color:rgba(255,255,255,.65)}
.banner-meta span{display:flex;align-items:center;gap:7px}
.article-main{padding:56px 0 var(--space);background:var(--bg)}
.article-layout{display:grid;grid-template-columns:1fr 320px;gap:40px;align-items:start}
.article-content-card{background:var(--card);border-radius:var(--radius-lg);padding:44px;box-shadow:var(--shadow-sm);border:1px solid rgba(255,255,255,.5)}
.article-body{font-size:16px;line-height:2;color:#344054}
.article-body p{margin-bottom:22px}
.article-body h2,.article-body h3{margin-top:32px;margin-bottom:14px;color:var(--primary)}
.article-body blockquote{border-left:4px solid var(--accent);padding:14px 20px;background:rgba(212,168,84,.06);border-radius:0 12px 12px 0;margin:24px 0;color:var(--text-light)}
.article-body ul,.article-body ol{padding-left:24px;margin-bottom:22px}
.article-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:30px;padding-top:24px;border-top:1px solid var(--border)}
.article-tags .tag{display:inline-block;padding:6px 16px;border-radius:999px;background:var(--bg-deep);font-size:13px;color:var(--text-light);font-weight:500}
.article-side .side-card{background:var(--card);border-radius:var(--radius-md);padding:26px;box-shadow:var(--shadow-sm);margin-bottom:24px;border:1px solid rgba(255,255,255,.5)}
.article-side .side-card h3{font-size:17px;font-weight:700;color:var(--primary);margin-bottom:16px;padding-bottom:12px;border-bottom:2px solid var(--accent);display:inline-block}
.article-side .side-card ul{list-style:none}
.article-side .side-card ul li{padding:9px 0;border-bottom:1px dashed var(--border)}
.article-side .side-card ul li:last-child{border-bottom:none}
.article-side .side-card ul li a{font-size:14px;color:var(--text-light);transition:var(--transition)}
.article-side .side-card ul li a:hover{color:var(--accent);padding-left:6px}
.not-found{text-align:center;padding:80px 20px}
.not-found h2{font-size:36px;font-weight:800;color:var(--primary);margin-bottom:16px}
.not-found p{color:var(--text-light);margin-bottom:28px}
.site-footer{background:var(--primary);color:rgba(255,255,255,.7);padding:60px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:48px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer-logo{font-size:20px;font-weight:800;color:#fff;margin-bottom:14px}
.footer-brand p{font-size:14px;line-height:1.8;max-width:300px}
.footer-links h4,.footer-contact h4{font-size:16px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-links a{display:block;font-size:14px;padding:5px 0;color:rgba(255,255,255,.6);transition:var(--transition)}
.footer-links a:hover{color:var(--accent-2)}
.footer-contact p{font-size:14px;padding:3px 0;color:rgba(255,255,255,.6)}
.footer-bottom{text-align:center;padding:24px 0;font-size:13px;color:rgba(255,255,255,.4)}
@media(max-width:1024px){
  .sidebar{transform:translateX(-100%);transition:var(--transition)}
  .sidebar.open{transform:translateX(0)}
  .main-area{margin-left:0}
  .mobile-header{display:flex}
  .article-layout{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  :root{--space:56px}
  .container{padding:0 20px}
  .page-banner h1{font-size:26px}
  .article-content-card{padding:28px}
  .footer-grid{grid-template-columns:1fr}
}

:root{
  --primary:#0e1f38;--primary-2:#1a3050;--accent:#d4a854;--accent-2:#e8c878;
  --bg:#f4f6fb;--bg-deep:#e9edf5;--card:#ffffff;--text:#182235;--text-light:#5a6478;
  --border:#e2e7f0;--radius-lg:20px;--radius-md:14px;--radius-sm:8px;
  --shadow-sm:0 2px 12px rgba(14,31,56,.06);--shadow-md:0 6px 30px rgba(14,31,56,.09);
  --shadow-lg:0 12px 48px rgba(14,31,56,.14);--sidebar-w:260px;
  --space:84px;--transition:all .28s cubic-bezier(.4,0,.2,1)
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",sans-serif;line-height:1.75;color:var(--text);background:var(--bg)}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit;transition:var(--transition)}
button{font-family:inherit;border:none;cursor:pointer}
input,textarea{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.container{max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:var(--space) 0}
.section-alt{background:var(--bg-deep)}
.section-head{text-align:center;max-width:680px;margin:0 auto 52px}
.section-head h2{font-size:34px;font-weight:700;color:var(--primary);letter-spacing:-.5px;margin-bottom:12px}
.section-head p{font-size:16px;color:var(--text-light)}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;border-radius:999px;font-size:15px;font-weight:600;transition:var(--transition);line-height:1}
.btn-primary{background:var(--accent);color:#0e1f38;box-shadow:0 4px 20px rgba(212,168,84,.35)}
.btn-primary:hover{background:var(--accent-2);transform:translateY(-2px);box-shadow:0 8px 30px rgba(212,168,84,.45)}
.btn-light{background:#fff;color:var(--primary);box-shadow:0 4px 20px rgba(0,0,0,.15)}
.btn-light:hover{transform:translateY(-2px);background:var(--accent-2);color:var(--primary)}
.badge{display:inline-block;padding:4px 14px;border-radius:999px;font-size:13px;font-weight:600;background:rgba(212,168,84,.15);color:var(--accent)}
.app-shell{display:flex;min-height:100vh}
.sidebar{position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);background:linear-gradient(180deg,#0e1f38 0%,#162a50 100%);z-index:1000;display:flex;flex-direction:column;box-shadow:4px 0 24px rgba(14,31,56,.15)}
.sidebar-logo{display:flex;align-items:center;gap:12px;padding:28px 24px 22px;border-bottom:1px solid rgba(255,255,255,.08)}
.sidebar-logo .logo-icon{width:42px;height:42px;border-radius:12px;background:linear-gradient(135deg,var(--accent),var(--accent-2));display:flex;align-items:center;justify-content:center;color:#0e1f38;font-size:20px;font-weight:800;flex-shrink:0}
.sidebar-logo .logo-text{font-size:17px;font-weight:700;color:#fff;letter-spacing:.5px;line-height:1.3}
.sidebar-nav{padding:20px 14px;flex:1;display:flex;flex-direction:column;gap:4px}
.nav-item{display:flex;align-items:center;gap:14px;padding:14px 18px;border-radius:12px;color:rgba(255,255,255,.65);font-size:15px;font-weight:500;transition:var(--transition)}
.nav-item i{width:20px;text-align:center;font-size:16px}
.nav-item:hover{background:rgba(255,255,255,.08);color:#fff;transform:translateX(4px)}
.nav-item.active{background:linear-gradient(135deg,rgba(212,168,84,.25),rgba(212,168,84,.1));color:var(--accent-2);font-weight:600;box-shadow:inset 0 0 0 1px rgba(212,168,84,.2)}
.sidebar-foot{padding:22px 24px;border-top:1px solid rgba(255,255,255,.08);font-size:12px;color:rgba(255,255,255,.4);line-height:1.6}
.sidebar-mask{position:fixed;inset:0;background:rgba(14,31,56,.5);backdrop-filter:blur(2px);z-index:999;opacity:0;visibility:hidden;transition:var(--transition)}
.sidebar-mask.show{opacity:1;visibility:visible}
.main-area{flex:1;margin-left:var(--sidebar-w);min-width:0;display:flex;flex-direction:column}
.mobile-header{display:none;position:sticky;top:0;z-index:900;background:rgba(14,31,56,.95);backdrop-filter:blur(12px);padding:14px 20px;align-items:center;justify-content:space-between}
.mobile-header .mobile-logo{color:#fff;font-weight:700;font-size:16px;display:flex;align-items:center;gap:10px}
.mobile-header .menu-btn{background:rgba(255,255,255,.12);color:#fff;width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:18px}
/* 分类页 */
.cat-banner{background:linear-gradient(120deg,var(--primary),var(--primary-2));padding:70px 0 76px;color:#fff;position:relative;overflow:hidden}
.cat-banner::before{content:'';position:absolute;top:-60px;right:-40px;width:260px;height:260px;border-radius:50%;background:rgba(212,168,84,.12)}
.cat-banner::after{content:'';position:absolute;bottom:-40px;left:15%;width:140px;height:140px;border-radius:50%;background:rgba(212,168,84,.06)}
.cat-banner .container{position:relative;z-index:2;max-width:760px}
.cat-banner h1{font-size:38px;font-weight:800;line-height:1.25;margin-bottom:14px}
.cat-banner p{font-size:16px;line-height:1.8;color:rgba(255,255,255,.75);margin-bottom:10px}
.cat-banner .breadcrumb{font-size:13px;color:rgba(255,255,255,.6);margin-bottom:18px;display:flex;gap:8px;align-items:center}
.cat-banner .breadcrumb a{color:rgba(255,255,255,.7)}
.cat-banner .breadcrumb a:hover{color:var(--accent-2)}
.guide-list{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.guide-card{background:var(--card);border-radius:var(--radius-md);padding:30px;box-shadow:var(--shadow-sm);border:1px solid rgba(255,255,255,.5);transition:var(--transition);display:flex;flex-direction:column}
.guide-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.guide-card .badge{align-self:flex-start;margin-bottom:14px}
.guide-card h3{font-size:19px;font-weight:700;color:var(--primary);margin-bottom:10px}
.guide-card p{font-size:14px;color:var(--text-light);line-height:1.7;flex:1;margin-bottom:16px}
.guide-card .guide-link{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--accent)}
.guide-card .guide-link i{transition:var(--transition)}
.guide-card:hover .guide-link i{transform:translateX(4px)}
.empty-tip{padding:60px;text-align:center;color:var(--text-light);font-size:16px;background:var(--card);border-radius:var(--radius-lg);grid-column:1/-1}
.cat-features{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:64px}
.cat-feature-card{background:var(--card);border-radius:var(--radius-lg);padding:34px 28px;text-align:center;box-shadow:var(--shadow-sm);transition:var(--transition)}
.cat-feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md)}
.cat-feature-card .ft-icon{width:60px;height:60px;border-radius:16px;background:linear-gradient(135deg,rgba(212,168,84,.15),rgba(212,168,84,.05));display:flex;align-items:center;justify-content:center;font-size:24px;color:var(--accent);margin:0 auto 18px}
.cat-feature-card h3{font-size:18px;font-weight:700;color:var(--primary);margin-bottom:8px}
.cat-feature-card p{font-size:14px;color:var(--text-light);line-height:1.7}
.faq-mini{max-width:800px;margin:0 auto}
.faq-item{background:var(--card);border-radius:var(--radius-md);margin-bottom:16px;box-shadow:var(--shadow-sm);border:1px solid rgba(255,255,255,.5)}
.faq-item summary{display:flex;justify-content:space-between;align-items:center;padding:20px 26px;cursor:pointer;font-size:15px;font-weight:600;color:var(--primary);list-style:none;gap:16px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:'\f078';font-family:'Font Awesome 6 Free';font-weight:900;font-size:13px;color:var(--accent);transition:var(--transition)}
.faq-item[open] summary::after{transform:rotate(180deg)}
.faq-item p{padding:0 26px 22px;color:var(--text-light);font-size:14px;line-height:1.8}
.site-footer{background:var(--primary);color:rgba(255,255,255,.7);padding:60px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:48px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer-logo{font-size:20px;font-weight:800;color:#fff;margin-bottom:14px}
.footer-brand p{font-size:14px;line-height:1.8;max-width:300px}
.footer-links h4,.footer-contact h4{font-size:16px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-links a{display:block;font-size:14px;padding:5px 0;color:rgba(255,255,255,.6);transition:var(--transition)}
.footer-links a:hover{color:var(--accent-2)}
.footer-contact p{font-size:14px;padding:3px 0;color:rgba(255,255,255,.6)}
.footer-bottom{text-align:center;padding:24px 0;font-size:13px;color:rgba(255,255,255,.4)}
@media(max-width:1024px){
  .sidebar{transform:translateX(-100%);transition:var(--transition)}
  .sidebar.open{transform:translateX(0)}
  .main-area{margin-left:0}
  .mobile-header{display:flex}
  .cat-features{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  :root{--space:56px}
  .container{padding:0 20px}
  .cat-banner h1{font-size:28px}
  .guide-list{grid-template-columns:1fr}
  .cat-features{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
}

/* roulang page: category1 */
/* ============ Design Variables ============ */
    :root {
      --primary: #16283f;
      --primary-light: #1e3a5c;
      --primary-dark: #0e1a2b;
      --accent: #c9a04a;
      --accent-light: #e0bc6a;
      --accent-dark: #a8863a;
      --bg: #f4f6fa;
      --bg-alt: #ffffff;
      --bg-dark: #0e1a2b;
      --text: #1c2a3a;
      --text-muted: #5c6b7d;
      --text-light: #8a99a8;
      --border: #e2e6ec;
      --radius-lg: 20px;
      --radius-md: 14px;
      --radius-sm: 8px;
      --shadow-sm: 0 2px 8px rgba(14, 26, 43, 0.06);
      --shadow-md: 0 6px 24px rgba(14, 26, 43, 0.08);
      --shadow-lg: 0 16px 48px rgba(14, 26, 43, 0.14);
      --space-section: 96px;
      --nav-width: 260px;
      --max-width: 1280px;
      --transition: all .3s cubic-bezier(.4, 0, .2, 1);
    }

    /* ============ Reset / Base ============ */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
      font-size: 16px;
      line-height: 1.7;
      color: var(--text);
      background: var(--bg);
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }
    img { max-width: 100%; display: block; height: auto; }
    a { color: inherit; text-decoration: none; transition: var(--transition); }
    button { font-family: inherit; cursor: pointer; border: none; background: none; }
    input, textarea { font-family: inherit; outline: none; }
    ul, ol { list-style: none; }
    h1, h2, h3, h4, h5 { line-height: 1.3; font-weight: 700; color: var(--text); }
    h1 { font-size: 44px; }
    h2 { font-size: 34px; }
    h3 { font-size: 22px; }
    h4 { font-size: 18px; }
    p { line-height: 1.8; }
    .container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

    /* ============ Layout Shell ============ */
    .app-shell { display: flex; min-height: 100vh; }
    .main-content { flex: 1; margin-left: var(--nav-width); min-width: 0; display: flex; flex-direction: column; }

    /* ============ Sidebar Nav ============ */
    .sidebar {
      width: var(--nav-width);
      background: var(--bg-dark);
      color: #fff;
      position: fixed;
      top: 0; left: 0; bottom: 0;
      z-index: 1000;
      display: flex;
      flex-direction: column;
      padding: 28px 20px;
      overflow-y: auto;
      transition: var(--transition);
    }
    .sidebar-logo {
      font-size: 24px;
      font-weight: 800;
      color: #fff;
      letter-spacing: 1px;
      padding: 8px 12px 24px;
      border-bottom: 1px solid rgba(255,255,255,.12);
      margin-bottom: 32px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .sidebar-logo i { color: var(--accent); font-size: 22px; }
    .sidebar-nav { display: flex; flex-direction: column; gap: 6px; }
    .nav-item {
      display: flex;
      align-items: center;
      gap: 14px;
      padding: 13px 18px;
      border-radius: 12px;
      color: rgba(255,255,255,.72);
      font-size: 15px;
      font-weight: 500;
      transition: var(--transition);
      letter-spacing: .3px;
    }
    .nav-item i { width: 20px; text-align: center; font-size: 17px; }
    .nav-item:hover { background: rgba(255,255,255,.08); color: #fff; transform: translateX(4px); }
    .nav-item.active { background: var(--accent); color: var(--bg-dark); font-weight: 700; box-shadow: 0 4px 20px rgba(201,160,74,.35); }
    .nav-item.active i { color: var(--bg-dark); }
    .sidebar-footer {
      margin-top: auto;
      padding: 20px 12px 0;
      border-top: 1px solid rgba(255,255,255,.1);
      font-size: 12px;
      color: rgba(255,255,255,.45);
      line-height: 1.6;
    }

    /* Mobile Topbar */
    .mobile-topbar {
      display: none;
      position: fixed;
      top: 0; left: 0; right: 0;
      height: 64px;
      background: var(--bg-dark);
      z-index: 999;
      padding: 0 20px;
      justify-content: space-between;
      align-items: center;
      box-shadow: 0 4px 20px rgba(14,26,43,.3);
    }
    .mobile-logo { color: #fff; font-weight: 800; font-size: 20px; display: flex; align-items: center; gap: 8px; }
    .mobile-logo i { color: var(--accent); }
    .hamburger { color: #fff; font-size: 22px; padding: 10px; border-radius: 8px; }
    .hamburger:hover { background: rgba(255,255,255,.1); }
    .mobile-nav {
      display: none;
      position: fixed;
      top: 64px; left: 0; right: 0;
      background: var(--bg-dark);
      z-index: 998;
      padding: 16px 20px 24px;
      box-shadow: 0 12px 30px rgba(14,26,43,.3);
      border-radius: 0 0 16px 16px;
    }
    .mobile-nav.open { display: block; }
    .mobile-nav .nav-item { border-radius: 10px; }
    .mobile-nav-backdrop {
      display: none;
      position: fixed;
      inset: 64px 0 0 0;
      background: rgba(14,26,43,.5);
      z-index: 997;
    }
    .mobile-nav-backdrop.open { display: block; }

    /* ============ Hero / Banner ============ */
    .category-hero {
      position: relative;
      background: linear-gradient(135deg, rgba(14,26,43,.92) 0%, rgba(30,58,92,.75) 100%), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
      color: #fff;
      padding: 80px 0 70px;
    }
    .category-hero::before { content: ''; position: absolute; inset: 0; background: radial-gradient(ellipse at top right, rgba(201,160,74,.18), transparent 60%); }
    .category-hero .container { position: relative; z-index: 2; }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(201,160,74,.18);
      border: 1px solid rgba(201,160,74,.4);
      color: var(--accent-light);
      padding: 7px 18px;
      border-radius: 50px;
      font-size: 13px;
      font-weight: 600;
      letter-spacing: 1px;
      margin-bottom: 24px;
    }
    .category-hero h1 { color: #fff; font-size: 46px; font-weight: 800; margin-bottom: 18px; max-width: 700px; }
    .category-hero p.lead { color: rgba(255,255,255,.85); font-size: 18px; max-width: 640px; margin-bottom: 32px; }
    .hero-meta { display: flex; gap: 30px; flex-wrap: wrap; }
    .hero-meta-item { display: flex; align-items: center; gap: 10px; font-size: 14px; color: rgba(255,255,255,.7); }
    .hero-meta-item i { color: var(--accent); }

    /* ============ Section Base ============ */
    .section { padding: var(--space-section) 0; }
    .section-alt { background: var(--bg-alt); }
    .section-head { text-align: center; max-width: 680px; margin: 0 auto 56px; }
    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(201,160,74,.1);
      color: var(--accent-dark);
      font-size: 13px;
      font-weight: 600;
      letter-spacing: 1.5px;
      padding: 6px 18px;
      border-radius: 50px;
      margin-bottom: 16px;
    }
    .section-head h2 { margin-bottom: 14px; }
    .section-head p { color: var(--text-muted); font-size: 16px; }

    /* ============ Guide Cards ============ */
    .guide-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
    .guide-card {
      background: var(--bg-alt);
      border-radius: var(--radius-lg);
      border: 1px solid var(--border);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      height: 100%;
    }
    .guide-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: rgba(201,160,74,.4); }
    .guide-card-cover { position: relative; overflow: hidden; aspect-ratio: 16/9; }
    .guide-card-cover img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
    .guide-card:hover .guide-card-cover img { transform: scale(1.05); }
    .guide-card-tag {
      position: absolute;
      top: 14px; left: 14px;
      background: rgba(14,26,43,.85);
      color: #fff;
      font-size: 12px;
      font-weight: 600;
      padding: 5px 14px;
      border-radius: 50px;
      letter-spacing: .5px;
      backdrop-filter: blur(4px);
    }
    .guide-card-body { padding: 26px 24px; flex: 1; display: flex; flex-direction: column; }
    .guide-card-body h3 { font-size: 19px; margin-bottom: 12px; line-height: 1.4; }
    .guide-card-body p { color: var(--text-muted); font-size: 14px; flex: 1; margin-bottom: 18px; }
    .guide-card-link { display: inline-flex; align-items: center; gap: 8px; color: var(--accent-dark); font-weight: 600; font-size: 14px; }
    .guide-card-link i { transition: var(--transition); }
    .guide-card-link:hover i { transform: translateX(4px); }

    /* ============ Steps / Workflow ============ */
    .steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; counter-reset: step; }
    .step-card {
      background: var(--bg-alt);
      border-radius: var(--radius-md);
      padding: 32px 24px;
      text-align: center;
      border: 1px solid var(--border);
      position: relative;
      transition: var(--transition);
    }
    .step-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
    .step-card::before {
      counter-increment: step;
      content: counter(step);
      position: absolute;
      top: -16px; left: 50%;
      transform: translateX(-50%);
      width: 34px; height: 34px;
      background: var(--accent);
      color: var(--bg-dark);
      border-radius: 50%;
      font-weight: 800;
      font-size: 15px;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 14px rgba(201,160,74,.4);
    }
    .step-icon {
      width: 64px; height: 64px;
      margin: 0 auto 18px;
      background: rgba(22,40,63,.06);
      border-radius: 18px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 24px;
      color: var(--primary);
    }
    .step-card h3 { font-size: 17px; margin-bottom: 10px; }
    .step-card p { font-size: 14px; color: var(--text-muted); }

    /* ============ Feature Blocks ============ */
    .feature-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 60px;
      align-items: center;
      margin-bottom: 72px;
    }
    .feature-row:last-child { margin-bottom: 0; }
    .feature-row.reverse .feature-media { order: 2; }
    .feature-media {
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-lg);
      position: relative;
    }
    .feature-media img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
    .feature-media::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 60%, rgba(14,26,43,.4)); border-radius: var(--radius-lg); }
    .feature-body h2 { font-size: 30px; margin-bottom: 16px; }
    .feature-body p { color: var(--text-muted); margin-bottom: 20px; }
    .feature-list { display: flex; flex-direction: column; gap: 14px; }
    .feature-list li { display: flex; align-items: flex-start; gap: 12px; font-size: 15px; color: var(--text); }
    .feature-list li i { color: var(--accent); font-size: 18px; margin-top: 2px; }

    /* ============ Stats / Data ============ */
    .stats-panel {
      background: var(--bg-dark);
      border-radius: var(--radius-lg);
      padding: 60px 48px;
      position: relative;
      overflow: hidden;
    }
    .stats-panel::before {
      content: '';
      position: absolute;
      top: -50%; right: -20%;
      width: 400px; height: 400px;
      background: radial-gradient(circle, rgba(201,160,74,.15), transparent 70%);
      border-radius: 50%;
    }
    .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; position: relative; z-index: 2; }
    .stat-item { text-align: center; }
    .stat-item .num { font-size: 42px; font-weight: 800; color: var(--accent); line-height: 1.2; margin-bottom: 8px; }
    .stat-item .label { color: rgba(255,255,255,.7); font-size: 14px; letter-spacing: .5px; }

    /* ============ FAQ ============ */
    .faq-wrap { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
    .faq-item {
      background: var(--bg-alt);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition);
    }
    .faq-item:hover { border-color: rgba(201,160,74,.4); }
    .faq-q {
      padding: 20px 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 16px;
      font-weight: 600;
      cursor: pointer;
      gap: 16px;
    }
    .faq-q i { color: var(--accent); font-size: 18px; transition: var(--transition); flex-shrink: 0; }
    .faq-item.open .faq-q i { transform: rotate(45deg); }
    .faq-a {
      max-height: 0;
      overflow: hidden;
      transition: max-height .4s ease;
    }
    .faq-item.open .faq-a { max-height: 300px; }
    .faq-a p { padding: 0 24px 22px; color: var(--text-muted); font-size: 15px; }

    /* ============ CTA ============ */
    .cta-panel {
      background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
      border-radius: var(--radius-lg);
      padding: 56px 48px;
      text-align: center;
      position: relative;
      overflow: hidden;
    }
    .cta-panel::before {
      content: '';
      position: absolute;
      bottom: -80px; left: -60px;
      width: 300px; height: 300px;
      background: radial-gradient(circle, rgba(201,160,74,.2), transparent 70%);
      border-radius: 50%;
    }
    .cta-panel h2 { color: #fff; font-size: 30px; margin-bottom: 12px; position: relative; z-index: 2; }
    .cta-panel p { color: rgba(255,255,255,.75); margin-bottom: 28px; position: relative; z-index: 2; }
    .btn-group { display: flex; justify-content: center; gap: 16px; position: relative; z-index: 2; flex-wrap: wrap; }
    .btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 14px 34px;
      border-radius: 50px;
      font-size: 15px;
      font-weight: 600;
      letter-spacing: .3px;
      transition: var(--transition);
      border: 2px solid transparent;
    }
    .btn-primary { background: var(--accent); color: var(--bg-dark); box-shadow: 0 6px 20px rgba(201,160,74,.3); }
    .btn-primary:hover { background: var(--accent-light); transform: translateY(-2px); box-shadow: 0 10px 30px rgba(201,160,74,.4); }
    .btn-outline { border-color: rgba(255,255,255,.4); color: #fff; }
    .btn-outline:hover { border-color: #fff; background: rgba(255,255,255,.1); }

    /* ============ Footer ============ */
    .site-footer { background: var(--bg-dark); color: rgba(255,255,255,.7); padding: 60px 0 0; margin-top: auto; }
    .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,.08); }
    .footer-logo { font-size: 22px; font-weight: 800; color: #fff; margin-bottom: 14px; display: flex; align-items: center; gap: 8px; }
    .footer-logo i { color: var(--accent); }
    .footer-brand p { font-size: 14px; color: rgba(255,255,255,.55); max-width: 320px; }
    .footer-links h4, .footer-contact h4 { color: #fff; font-size: 16px; margin-bottom: 20px; }
    .footer-links a {
      display: block;
      color: rgba(255,255,255,.6);
      font-size: 14px;
      padding: 6px 0;
    }
    .footer-links a:hover { color: var(--accent); padding-left: 6px; }
    .footer-contact p { font-size: 14px; color: rgba(255,255,255,.6); padding: 4px 0; }
    .footer-bottom { padding: 24px 0; text-align: center; font-size: 14px; color: rgba(255,255,255,.45); }
    .footer-bottom a { color: var(--accent); }

    /* ============ Focus States ============ */
    a:focus-visible, button:focus-visible {
      outline: 3px solid var(--accent);
      outline-offset: 2px;
    }

    /* ============ Responsive ============ */
    @media (max-width: 1024px) {
      :root { --space-section: 72px; }
      .sidebar { width: 220px; padding: 24px 16px; }
      .main-content { margin-left: 220px; }
      .guide-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
      .steps-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
      .feature-row { gap: 36px; }
      .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
    }
    @media (max-width: 768px) {
      :root { --space-section: 56px; }
      .sidebar { display: none; }
      .main-content { margin-left: 0; }
      .mobile-topbar { display: flex; }
      .category-hero { padding: 100px 0 56px; }
      .category-hero h1 { font-size: 34px; }
      .footer-grid { grid-template-columns: 1fr; gap: 32px; }
      .guide-grid { grid-template-columns: 1fr; }
      .steps-grid { grid-template-columns: 1fr 1fr; gap: 20px; }
      .feature-row, .feature-row.reverse { grid-template-columns: 1fr; gap: 28px; }
      .feature-row.reverse .feature-media { order: 0; }
      .stats-panel { padding: 40px 24px; }
    }
    @media (max-width: 520px) {
      .container { padding: 0 16px; }
      .category-hero h1 { font-size: 28px; }
      .section-head h2 { font-size: 26px; }
      .steps-grid { grid-template-columns: 1fr; }
      .stats-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
      .stat-item .num { font-size: 32px; }
      .cta-panel { padding: 40px 24px; }
      .cta-panel h2 { font-size: 24px; }
      .btn-group { flex-direction: column; }
      .btn { justify-content: center; }
      .footer-grid { gap: 24px; }
      .hero-meta { gap: 16px; }
    }

/* roulang page: article */
:root {
  --primary: #10233f;
  --primary-2: #16314f;
  --primary-3: #1d3a61;
  --accent: #f0a500;
  --accent-2: #ffc04d;
  --accent-soft: #fff4dd;
  --bg: #f4f6f9;
  --surface: #ffffff;
  --text: #1f2d3d;
  --text-weak: #5f7392;
  --text-muted: #8a9bb5;
  --border: #e3e9f2;
  --radius-xl: 24px;
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 8px rgba(16,35,63,.05);
  --shadow-md: 0 8px 30px rgba(16,35,63,.08);
  --shadow-lg: 0 16px 48px rgba(16,35,63,.14);
  --sidebar-w: 260px;
  --transition: .3s cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { font-family: "PingFang SC","Microsoft YaHei","Segoe UI",Helvetica,Arial,sans-serif; font-size: 16px; line-height: 1.75; color: var(--text); background: var(--bg); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button,input,textarea,select { font: inherit; color: inherit; }
ul,ol { list-style: none; }
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 28px; }

.app-shell { display: flex; min-height: 100vh; }
.sidebar { width: var(--sidebar-w); background: linear-gradient(178deg, var(--primary) 0%, var(--primary-2) 60%, var(--primary-3) 100%); color: #fff; position: fixed; top: 0; bottom: 0; left: 0; z-index: 120; display: flex; flex-direction: column; border-right: 1px solid rgba(255,255,255,.06); border-radius: 0 28px 28px 0; box-shadow: 8px 0 40px rgba(16,35,63,.18); transition: transform var(--transition); }
.sidebar-inner { display: flex; flex-direction: column; height: 100%; padding: 28px 20px; }
.brand { display: flex; align-items: center; gap: 14px; padding: 6px 8px 28px; border-bottom: 1px solid rgba(255,255,255,.1); margin-bottom: 28px; }
.brand-icon { width: 44px; height: 44px; border-radius: 14px; background: var(--accent); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 20px; box-shadow: 0 4px 16px rgba(240,165,0,.4); flex-shrink: 0; }
.brand-name { font-size: 19px; font-weight: 800; letter-spacing: .5px; line-height: 1.3; }
.sidebar-nav { display: flex; flex-direction: column; gap: 8px; flex: 1; }
.nav-item { display: flex; align-items: center; gap: 14px; padding: 14px 16px; border-radius: 14px; color: rgba(255,255,255,.72); font-size: 15px; font-weight: 500; transition: all var(--transition); }
.nav-item i { width: 22px; text-align: center; font-size: 17px; }
.nav-item:hover { background: rgba(255,255,255,.08); color: #fff; transform: translateX(4px); }
.nav-item.active { background: var(--accent); color: var(--primary); font-weight: 700; box-shadow: 0 6px 20px rgba(240,165,0,.35); }
.nav-item.active i { color: var(--primary); }
.sidebar-card { margin-top: auto; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.12); border-radius: 18px; padding: 20px 18px; text-align: center; backdrop-filter: blur(8px); }
.sidebar-card i { font-size: 26px; color: var(--accent-2); margin-bottom: 10px; }
.sidebar-card .sc-title { font-weight: 700; font-size: 15px; }
.sidebar-card .sc-text { font-size: 13px; color: rgba(255,255,255,.7); margin-top: 4px; }
.sidebar-close { display: none; position: absolute; top: 18px; right: 16px; background: rgba(255,255,255,.1); border: none; width: 38px; height: 38px; border-radius: 10px; color: #fff; font-size: 16px; cursor: pointer; transition: background var(--transition); }
.sidebar-close:hover { background: rgba(255,255,255,.2); }
.sidebar-overlay { position: fixed; inset: 0; background: rgba(16,35,63,.46); z-index: 110; opacity: 0; visibility: hidden; transition: opacity var(--transition); backdrop-filter: blur(2px); }
.sidebar-overlay.show { opacity: 1; visibility: visible; }

.main-wrapper { flex: 1; margin-left: var(--sidebar-w); display: flex; flex-direction: column; min-width: 0; }
.top-header { background: rgba(255,255,255,.85); backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); padding: 14px 32px; display: flex; align-items: center; gap: 18px; position: sticky; top: 0; z-index: 100; }
.menu-toggle { display: none; background: var(--surface); border: 1px solid var(--border); width: 42px; height: 42px; border-radius: 12px; align-items: center; justify-content: center; cursor: pointer; color: var(--text); font-size: 17px; transition: all var(--transition); flex-shrink: 0; }
.menu-toggle:hover { background: var(--accent-soft); color: var(--accent); border-color: var(--accent); }
.top-header-brand { font-weight: 800; font-size: 18px; color: var(--primary); display: none; }
.header-search { margin-left: auto; display: flex; align-items: center; background: var(--bg); border: 1px solid var(--border); border-radius: 999px; padding: 4px 6px 4px 18px; width: 320px; transition: border-color var(--transition), box-shadow var(--transition); }
.header-search:focus-within { border-color: var(--accent); box-shadow: 0 0 0 4px rgba(240,165,0,.12); }
.header-search input { border: none; outline: none; background: transparent; flex: 1; font-size: 14px; color: var(--text); min-width: 0; }
.header-search button { border: none; background: var(--primary); color: #fff; width: 34px; height: 34px; border-radius: 50%; flex-shrink: 0; cursor: pointer; display: flex; align-items: center; justify-content: center; font-size: 13px; transition: background var(--transition); }
.header-search button:hover { background: var(--primary-3); }

.page-main { flex: 1; }

.article-hero { position: relative; padding: 92px 0 72px; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; background: url('/assets/images/backpic/back-1.png') center/cover no-repeat; }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(115deg, rgba(16,35,63,.94) 0%, rgba(21,45,76,.82) 45%, rgba(24,55,90,.42) 100%); }
.article-hero .container { position: relative; z-index: 2; max-width: 920px; }
.breadcrumb { display: flex; align-items: center; gap: 8px; color: rgba(255,255,255,.68); font-size: 14px; margin-bottom: 28px; }
.breadcrumb a { transition: color var(--transition); }
.breadcrumb a:hover { color: var(--accent-2); }
.breadcrumb i { font-size: 11px; color: rgba(255,255,255,.4); }
.breadcrumb span { color: rgba(255,255,255,.9); }
.article-meta-row { display: flex; flex-wrap: wrap; align-items: center; gap: 18px; margin-bottom: 24px; }
.badge-accent { display: inline-flex; align-items: center; gap: 6px; background: var(--accent); color: var(--primary); font-size: 13px; font-weight: 700; padding: 5px 16px; border-radius: 999px; letter-spacing: .3px; }
.meta-item { display: inline-flex; align-items: center; gap: 8px; color: rgba(255,255,255,.72); font-size: 14px; }
.meta-item i { color: var(--accent-2); font-size: 14px; }
.article-hero h1 { font-size: 44px; font-weight: 800; line-height: 1.28; color: #fff; margin-bottom: 20px; letter-spacing: -.5px; }
.article-desc { font-size: 17px; color: rgba(255,255,255,.8); line-height: 1.8; max-width: 720px; }

.stats-section { position: relative; z-index: 3; margin-top: -40px; }
.stats-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 18px; background: var(--surface); border-radius: var(--radius-xl); padding: 30px; box-shadow: var(--shadow-lg); }
.stat-card { display: flex; align-items: center; gap: 16px; }
.stat-icon { width: 52px; height: 52px; border-radius: 16px; background: var(--accent-soft); color: var(--accent); display: flex; align-items: center; justify-content: center; font-size: 20px; flex-shrink: 0; }
.stat-info strong { display: block; font-size: 17px; color: var(--text); font-weight: 700; }
.stat-info span { font-size: 13px; color: var(--text-weak); }

.article-section { padding: 56px 0 0; }
.article-panel { background: var(--surface); border-radius: var(--radius-xl); box-shadow: var(--shadow-md); overflow: hidden; border: 1px solid var(--border); }
.article-cover img { width: 100%; height: 420px; object-fit: cover; }
.article-body { padding: 52px 64px; }
.article-body > *:last-child { margin-bottom: 0; }
.article-body p { margin-bottom: 22px; font-size: 16.5px; line-height: 1.9; color: #34465a; }
.article-body h2 { font-size: 28px; font-weight: 800; margin: 42px 0 18px; color: var(--primary); line-height: 1.4; }
.article-body h3 { font-size: 22px; font-weight: 700; margin: 34px 0 14px; color: var(--primary); line-height: 1.4; }
.article-body h4 { font-size: 18px; font-weight: 700; margin: 26px 0 10px; color: var(--text); }
.article-body ul, .article-body ol { margin-bottom: 24px; padding-left: 24px; }
.article-body ul { list-style: disc; }
.article-body ol { list-style: decimal; }
.article-body li { margin-bottom: 8px; font-size: 16px; color: #34465a; line-height: 1.8; }
.article-body img { border-radius: var(--radius-lg); margin: 28px 0; box-shadow: var(--shadow-md); width: 100%; height: auto; }
.article-body blockquote { border-left: 4px solid var(--accent); background: var(--accent-soft); padding: 18px 24px; border-radius: 0 var(--radius-md) var(--radius-md) 0; margin: 28px 0; font-size: 16px; color: #5b4a1f; line-height: 1.8; }
.article-body blockquote p { margin-bottom: 0; color: inherit; }
.article-body a { color: var(--accent); font-weight: 600; border-bottom: 1px solid transparent; transition: border-color var(--transition); }
.article-body a:hover { border-bottom-color: var(--accent); }

.tags-section { padding: 36px 0 0; }
.tags-panel { background: var(--surface); border-radius: var(--radius-xl); box-shadow: var(--shadow-sm); padding: 30px 32px; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 20px; border: 1px solid var(--border); }
.tags-list { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.tags-list span { font-size: 14px; font-weight: 600; color: var(--text-weak); margin-right: 4px; }
.tag { display: inline-block; background: var(--bg); color: var(--text-weak); font-size: 13px; font-weight: 600; padding: 6px 16px; border-radius: 999px; border: 1px solid var(--border); transition: all var(--transition); cursor: default; }
.tag:hover { background: var(--accent-soft); color: var(--accent); border-color: var(--accent); }
.share-row { display: flex; align-items: center; gap: 8px; }
.share-row span { font-size: 14px; color: var(--text-weak); font-weight: 600; margin-right: 4px; }
.share-btn { width: 40px; height: 40px; border-radius: 12px; display: flex; align-items: center; justify-content: center; border: 1px solid var(--border); background: var(--surface); color: var(--text-weak); font-size: 15px; transition: all var(--transition); cursor: pointer; }
.share-btn:hover { background: var(--primary); color: #fff; border-color: var(--primary); transform: translateY(-3px); box-shadow: 0 6px 16px rgba(16,35,63,.18); }

.related-section { padding: 56px 0 20px; }
.section-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 28px; }
.section-head h2 { font-size: 28px; font-weight: 800; color: var(--primary); }
.section-head h2 em { font-style: normal; color: var(--accent); }
.section-head p { color: var(--text-weak); font-size: 15px; }
.related-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.related-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); transition: all var(--transition); }
.related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: rgba(240,165,0,.4); }
.related-thumb { height: 180px; overflow: hidden; }
.related-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.related-card:hover .related-thumb img { transform: scale(1.06); }
.related-body { padding: 20px 22px 24px; }
.related-body .tag { margin-bottom: 12px; }
.related-body h4 { font-size: 17px; font-weight: 700; line-height: 1.5; margin-bottom: 10px; color: var(--text); transition: color var(--transition); }
.related-card:hover .related-body h4 { color: var(--accent); }
.related-body p { font-size: 14px; color: var(--text-weak); line-height: 1.7; margin-bottom: 14px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-date { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--text-muted); }
.related-date i { font-size: 12px; }
.related-empty { text-align: center; padding: 48px; color: var(--text-weak); background: var(--surface); border-radius: var(--radius-lg); border: 1px solid var(--border); }

.cta-section { padding: 56px 0 72px; }
.cta-box { background: linear-gradient(120deg, var(--primary) 0%, var(--primary-2) 55%, var(--primary-3) 100%); border-radius: var(--radius-xl); padding: 56px 64px; display: flex; align-items: center; justify-content: space-between; gap: 40px; position: relative; overflow: hidden; box-shadow: var(--shadow-lg); }
.cta-box::after { content: ''; position: absolute; right: -80px; top: -80px; width: 260px; height: 260px; background: radial-gradient(circle, rgba(240,165,0,.35) 0%, transparent 70%); border-radius: 50%; }
.cta-box::before { content: ''; position: absolute; left: 30%; bottom: -120px; width: 220px; height: 220px; background: radial-gradient(circle, rgba(255,255,255,.06) 0%, transparent 70%); border-radius: 50%; }
.cta-content { position: relative; z-index: 2; }
.cta-content h2 { font-size: 28px; font-weight: 800; color: #fff; margin-bottom: 14px; }
.cta-content p { font-size: 16px; color: rgba(255,255,255,.75); max-width: 520px; line-height: 1.75; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 14px 30px; border-radius: 999px; font-weight: 700; font-size: 15px; border: none; cursor: pointer; transition: all var(--transition); position: relative; z-index: 2; }
.btn-accent { background: var(--accent); color: var(--primary); box-shadow: 0 6px 22px rgba(240,165,0,.35); }
.btn-accent:hover { background: var(--accent-2); transform: translateY(-3px); box-shadow: 0 10px 30px rgba(240,165,0,.45); }
.btn-outline { background: transparent; border: 2px solid rgba(255,255,255,.5); color: #fff; }
.btn-outline:hover { border-color: var(--accent); background: rgba(240,165,0,.12); color: var(--accent-2); transform: translateY(-3px); }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 6px 20px rgba(16,35,63,.25); }
.btn-primary:hover { background: var(--primary-3); transform: translateY(-3px); box-shadow: 0 10px 28px rgba(16,35,63,.32); }
.not-found { text-align: center; padding: 80px 30px; }
.not-found i { font-size: 56px; color: var(--accent); opacity: .7; float: none; margin: 0 auto 24px; display: block; }
.not-found h2 { font-size: 28px; font-weight: 800; color: var(--primary); margin-bottom: 10px; }
.not-found p { color: var(--text-weak); margin-bottom: 28px; }

.site-footer { background: var(--primary); color: rgba(255,255,255,.75); padding: 64px 0 0; border-top: 1px solid rgba(255,255,255,.08); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 48px; padding-bottom: 44px; border-bottom: 1px solid rgba(255,255,255,.1); }
.footer-logo { font-size: 20px; font-weight: 800; color: #fff; margin-bottom: 14px; display: flex; align-items: center; gap: 12px; }
.footer-logo i { color: var(--accent); }
.footer-brand p { font-size: 14px; color: rgba(255,255,255,.6); line-height: 1.8; max-width: 320px; }
.footer-links h4, .footer-contact h4 { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 18px; position: relative; padding-bottom: 10px; }
.footer-links h4::after, .footer-contact h4::after { content: ''; position: absolute; left: 0; bottom: 0; width: 28px; height: 3px; background: var(--accent); border-radius: 99px; }
.footer-links { display: flex; flex-direction: column; gap: 12px; }
.footer-links a { font-size: 14px; transition: all var(--transition); width: fit-content; }
.footer-links a:hover { color: var(--accent-2); transform: translateX(4px); }
.footer-contact p { font-size: 14px; margin-bottom: 8px; display: flex; align-items: center; gap: 8px; }
.footer-contact p i { color: var(--accent); font-size: 13px; }
.footer-bottom { padding: 22px 0; display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.footer-bottom p { font-size: 13px; color: rgba(255,255,255,.45); }

::focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

@media (max-width: 1024px) {
  .sidebar { transform: translateX(-100%); border-radius: 0 28px 28px 0; box-shadow: none; }
  .sidebar.open { transform: translateX(0); box-shadow: 8px 0 50px rgba(16,35,63,.28); }
  .sidebar-close { display: flex; align-items: center; justify-content: center; }
  .sidebar-overlay.show { opacity: 1; visibility: visible; }
  .main-wrapper { margin-left: 0; }
  .menu-toggle { display: inline-flex; }
  .top-header-brand { display: block; }
  .header-search { width: 240px; }
  .article-hero { padding: 72px 0 56px; }
  .article-hero h1 { font-size: 34px; }
  .stats-section { margin-top: -24px; }
  .stats-grid { padding: 22px; gap: 14px; }
  .article-body { padding: 40px 36px; }
  .cta-box { padding: 44px 36px; flex-direction: column; align-items: flex-start; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .container { padding: 0 20px; }
  .top-header { padding: 12px 16px; }
  .header-search { width: 46px; padding: 4px; border-radius: 14px; background: var(--surface); border-color: var(--border); }
  .header-search input { display: none; }
  .header-search button { width: 36px; height: 36px; }
  .article-hero { padding: 56px 0 48px; }
  .article-hero h1 { font-size: 28px; }
  .article-desc { font-size: 15px; }
  .article-meta-row { gap: 12px; }
  .stats-section { margin-top: -16px; }
  .stats-grid { grid-template-columns: repeat(2,1fr); gap: 18px; padding: 20px; }
  .article-body { padding: 30px 22px; }
  .article-body h2 { font-size: 23px; }
  .article-body p { font-size: 15.5px; }
  .tags-panel { flex-direction: column; align-items: flex-start; padding: 24px; }
  .share-row { width: 100%; }
  .related-grid { grid-template-columns: 1fr; }
  .cta-box { padding: 36px 24px; }
  .cta-content h2 { font-size: 23px; }
  .cta-btns { display: flex; flex-direction: column; width: 100%; gap: 12px; }
  .cta-btns .btn { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .stats-grid { grid-template-columns: 1fr; }
  .stat-card { padding: 8px 0; }
  .article-cover img { height: 240px; }
  .related-thumb { height: 200px; }
  .article-meta-row .meta-item { font-size: 13px; }
}