/* roulang page: index */
:root{
--primary:#0e9f6e;--primary-dark:#057a55;--primary-soft:#d1fae5;--accent:#f59e0b;--dark:#0b1220;--dark-light:#1e293b;--bg:#f7f9fc;--white:#fff;--text:#1e293b;--muted:#64748b;--border:#dfe6f0;--radius:20px;--radius-sm:10px;--radius-lg:30px;--shadow:0 4px 28px rgba(2,12,27,.06);--shadow-lg:0 16px 56px rgba(2,12,27,.14);--spacer:100px;--spacer-sm:64px;--header-h:80px;--transition:all .35s cubic-bezier(.4,0,.2,1)}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;font-size:16px;line-height:1.75;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:var(--transition)}
ul,ol{list-style:none}
button,input,textarea{font-family:inherit;font-size:inherit;border:none;outline:none;background:none}
.container{max-width:1200px;margin:0 auto;padding:0 28px}
::selection{background:var(--primary-soft);color:var(--primary-dark)}

.section{padding:var(--spacer) 0}
.section-sm{padding:var(--spacer-sm) 0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:2px;color:var(--primary);background:var(--primary-soft);padding:6px 18px;border-radius:100px;text-transform:uppercase;margin-bottom:18px}
.eyebrow i{font-size:12px}
.section-title{font-size:clamp(28px,4vw,40px);font-weight:700;line-height:1.25;letter-spacing:-.5px;color:var(--text);margin-bottom:14px}
.section-sub{font-size:16px;color:var(--muted);max-width:680px;line-height:1.7}
.text-center{text-align:center}
.flex-center{display:flex;align-items:center;justify-content:center}
.grid-space{grid-gap:28px}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:14px 32px;border-radius:100px;font-size:15px;font-weight:600;letter-spacing:.3px;cursor:pointer;transition:var(--transition);border:2px solid transparent}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 4px 20px rgba(14,159,110,.28)}.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 8px 32px rgba(14,159,110,.38)}
.btn-outline{background:transparent;border-color:rgba(255,255,255,.6);color:#fff}.btn-outline:hover{background:rgba(255,255,255,.12);border-color:#fff;transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--dark);box-shadow:var(--shadow)}.btn-light:hover{background:var(--primary-soft);color:var(--primary-dark);transform:translateY(-2px)}

.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(255,255,255,.86);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-bottom:1px solid rgba(223,230,240,.7);transition:var(--transition)}
.header-inner{height:var(--header-h);display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand-logo{display:flex;align-items:center;gap:10px;font-size:24px;font-weight:800;letter-spacing:-.5px;color:var(--text);white-space:nowrap}
.brand-logo .logo-mark{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--primary),#10b981);display:flex;align-items:center;justify-content:center;color:#fff;font-size:16px;box-shadow:0 4px 16px rgba(14,159,110,.35)}
.main-nav{display:flex;align-items:center;gap:8px}
.main-nav .nav-link{position:relative;padding:10px 22px;font-size:15px;font-weight:500;color:var(--dark-light);border-radius:100px;transition:var(--transition)}
.main-nav .nav-link:hover{color:var(--primary);background:var(--primary-soft)}
.main-nav .nav-link.active{color:var(--primary);font-weight:600;background:var(--primary-soft)}
.main-nav .nav-link.active::after{content:'';position:absolute;bottom:2px;left:50%;transform:translateX(-50%);width:5px;height:5px;border-radius:50%;background:var(--primary)}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--border);background:#fff;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px;transition:var(--transition)}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--text);border-radius:2px;transition:var(--transition)}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.hero{position:relative;padding:calc(var(--header-h) + 80px) 0 90px;background:linear-gradient(135deg,rgba(2,12,27,.82),rgba(5,90,60,.72)),url('/assets/images/backpic/back-1.png') center/cover no-repeat;color:#fff;overflow:hidden}
.hero-grid{display:flex;align-items:center;gap:60px}
.hero-content{flex:1.2}
.hero-kicker{display:inline-flex;align-items:center;gap:10px;padding:8px 22px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.25);border-radius:100px;font-size:13px;font-weight:500;letter-spacing:1px;margin-bottom:28px;backdrop-filter:blur(8px)}
.hero-kicker .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);display:inline-block;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
.hero h1{font-size:clamp(34px,5.5vw,60px);font-weight:800;line-height:1.15;letter-spacing:-1px;margin-bottom:18px}
.hero h1 .highlight{color:var(--accent);position:relative}
.hero-text{font-size:17px;line-height:1.85;color:rgba(255,255,255,.85);max-width:560px;margin-bottom:36px}
.hero-btns{display:flex;flex-wrap:wrap;gap:16px}
.hero-visual{flex:1;position:relative;min-height:380px}
.hero-visual .visual-card{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);border-radius:var(--radius-lg);padding:36px;backdrop-filter:blur(16px);box-shadow:0 20px 60px rgba(0,0,0,.3)}
.visual-card .vc-title{font-size:18px;font-weight:600;margin-bottom:20px;display:flex;align-items:center;gap:10px}
.visual-card .vc-list{display:flex;flex-direction:column;gap:16px}
.vc-item{display:flex;align-items:center;gap:14px;padding:14px;background:rgba(255,255,255,.08);border-radius:14px;transition:var(--transition)}
.vc-item:hover{background:rgba(255,255,255,.16)}
.vc-item .vc-icon{width:40px;height:40px;border-radius:12px;background:var(--primary);display:flex;align-items:center;justify-content:center;color:#fff;font-size:16px;flex-shrink:0}
.vc-item .vc-info{flex:1}
.vc-item .vc-label{font-size:14px;font-weight:600}
.vc-item .vc-desc{font-size:12px;color:rgba(255,255,255,.65)}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:56px;padding-top:36px;border-top:1px solid rgba(255,255,255,.18)}
.hero-stat .hs-num{font-size:32px;font-weight:800;color:var(--accent);line-height:1.2}
.hero-stat .hs-label{font-size:13px;color:rgba(255,255,255,.7)}

.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:44px}
.feature-card{background:var(--white);border-radius:var(--radius);padding:38px 32px;border:1px solid var(--border);box-shadow:var(--shadow);transition:var(--transition);position:relative;overflow:hidden}
.feature-card::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--primary),#10b981);opacity:0;transition:var(--transition)}
.feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.feature-card:hover::before{opacity:1}
.feature-icon{width:56px;height:56px;border-radius:16px;background:var(--primary-soft);display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:22px;margin-bottom:22px;transition:var(--transition)}
.feature-card:hover .feature-icon{background:var(--primary);color:#fff}
.feature-card h3{font-size:18px;font-weight:700;margin-bottom:10px;color:var(--text)}
.feature-card p{font-size:14px;color:var(--muted);line-height:1.7}

.cats-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px;margin-top:44px}
.cat-card{position:relative;border-radius:var(--radius-lg);overflow:hidden;min-height:340px;display:flex;align-items:flex-end;transition:var(--transition);box-shadow:var(--shadow)}
.cat-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.cat-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.cat-card:hover img{transform:scale(1.05)}
.cat-card::after{content:'';position:absolute;inset:0;background:linear-gradient(to top,rgba(2,12,27,.88) 0%,rgba(2,12,27,.25) 60%,rgba(2,12,27,.1) 100%);z-index:1}
.cat-card-body{position:relative;z-index:2;padding:36px;width:100%}
.cat-card-body .cat-tag{display:inline-block;padding:5px 16px;background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.25);border-radius:100px;font-size:12px;font-weight:500;color:#fff;margin-bottom:14px;backdrop-filter:blur(6px)}
.cat-card-body h3{font-size:26px;font-weight:700;color:#fff;margin-bottom:8px}
.cat-card-body p{font-size:14px;color:rgba(255,255,255,.8);line-height:1.7;margin-bottom:18px}
.cat-arrow{display:inline-flex;align-items:center;gap:8px;color:#fff;font-size:14px;font-weight:600;transition:var(--transition)}
.cat-arrow i{transition:transform .3s ease}
.cat-card:hover .cat-arrow i{transform:translateX(6px)}

.news-section{background:var(--white);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.news-header{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.news-list{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.news-card{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);padding:28px;transition:var(--transition);display:flex;flex-direction:column;gap:10px}
.news-card:hover{background:var(--white);box-shadow:var(--shadow-lg);transform:translateY(-4px);border-color:var(--primary)}
.news-cat{display:inline-block;align-self:flex-start;padding:4px 14px;border-radius:100px;font-size:12px;font-weight:600;background:var(--primary-soft);color:var(--primary-dark)}
.news-card h3{font-size:17px;font-weight:600;color:var(--text);line-height:1.45;transition:var(--transition)}
.news-card:hover h3{color:var(--primary)}
.news-card p{font-size:14px;color:var(--muted);line-height:1.7}
.news-meta{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--muted);margin-top:auto}
.news-meta i{font-size:11px}
.empty-tip{grid-column:1/-1;text-align:center;padding:60px 20px;color:var(--muted);font-size:16px;background:var(--bg);border-radius:var(--radius);border:1px dashed var(--border)}
.view-all-btn{display:inline-flex;align-items:center;gap:8px;padding:12px 28px;border-radius:100px;border:1px solid var(--border);background:#fff;font-size:14px;font-weight:500;color:var(--text);transition:var(--transition)}
.view-all-btn:hover{border-color:var(--primary);color:var(--primary);box-shadow:var(--shadow)}

.stats-band{background:var(--dark);padding:72px 0;color:#fff;position:relative;overflow:hidden}
.stats-band::before{content:'';position:absolute;top:-60px;right:-60px;width:240px;height:240px;border-radius:50%;background:rgba(14,159,110,.15);filter:blur(40px)}
.stats-band::after{content:'';position:absolute;bottom:-80px;left:20%;width:180px;height:180px;border-radius:50%;background:rgba(245,158,11,.08);filter:blur(30px)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;position:relative;z-index:1}
.stat-item{text-align:center;padding:24px 16px}
.stat-num{font-size:42px;font-weight:800;color:var(--accent);line-height:1.2;letter-spacing:-1px}
.stat-label{font-size:14px;color:rgba(255,255,255,.7);margin-top:6px}
.stat-divider{position:absolute;top:50%;transform:translateY(-50%);width:1px;height:80px;background:rgba(255,255,255,.1)}
.stat-divider:nth-of-type(1){left:25%}
.stat-divider:nth-of-type(2){left:50%}
.stat-divider:nth-of-type(3){left:75%}

.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;margin-top:48px}
.step-card{text-align:center;position:relative;padding:0 16px}
.step-card::after{content:'';position:absolute;top:36px;left:calc(50% + 40px);width:calc(100% - 40px);height:2px;background:var(--border);z-index:-1}
.step-card:last-child::after{display:none}
.step-num{width:72px;height:72px;border-radius:50%;background:var(--primary);color:#fff;font-size:22px;font-weight:700;display:flex;align-items:center;justify-content:center;margin:0 auto 20px;box-shadow:0 8px 30px rgba(14,159,110,.3);border:4px solid var(--primary-soft)}
.step-card h3{font-size:16px;font-weight:600;margin-bottom:8px}
.step-card p{font-size:13px;color:var(--muted);line-height:1.6}

.faq-wrap{max-width:820px;margin:44px auto 0}
.faq-item{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-sm);margin-bottom:12px;overflow:hidden;transition:var(--transition)}
.faq-item:hover{border-color:var(--primary);box-shadow:var(--shadow)}
.faq-question{width:100%;padding:22px 28px;display:flex;align-items:center;justify-content:space-between;cursor:pointer;font-size:15px;font-weight:600;color:var(--text);background:transparent;transition:var(--transition)}
.faq-question i{font-size:14px;color:var(--muted);transition:transform .3s ease}
.faq-item.open .faq-question i{transform:rotate(45deg);color:var(--primary)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .4s ease;padding:0 28px;font-size:14px;color:var(--muted);line-height:1.8}
.faq-item.open .faq-answer{max-height:300px;padding:0 28px 22px}

.cta-section{position:relative;padding:80px 0;background:linear-gradient(120deg,var(--primary),var(--primary-dark)),url('/assets/images/backpic/back-2.png') center/cover no-repeat;color:#fff;text-align:center}
.cta-section::before{content:'';position:absolute;inset:0;background:rgba(2,12,27,.4)}
.cta-inner{position:relative;z-index:1;max-width:720px;margin:0 auto}
.cta-inner h2{font-size:clamp(26px,3.5vw,38px);font-weight:700;margin-bottom:16px}
.cta-inner p{font-size:16px;color:rgba(255,255,255,.85);margin-bottom:32px;line-height:1.8}
.cta-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

.site-footer{background:var(--dark);color:rgba(255,255,255,.7);padding:70px 0 0;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:48px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer-brand .brand-logo{color:#fff;margin-bottom:14px}
.footer-brand p{line-height:1.8;color:rgba(255,255,255,.55)}
.footer-nav h4,.footer-contact h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px}
.footer-nav a{display:block;padding:6px 0;color:rgba(255,255,255,.65);transition:var(--transition)}
.footer-nav a:hover{color:var(--primary);padding-left:6px}
.footer-contact p{padding:4px 0;color:rgba(255,255,255,.55)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;padding:24px 0;gap:16px;flex-wrap:wrap}
.footer-bottom p{font-size:13px;color:rgba(255,255,255,.4)}

@media(max-width:1024px){
:root{--spacer:72px}
.hero-grid{flex-direction:column;gap:40px}
.hero-visual{width:100%;min-height:auto}
.features-grid{grid-template-columns:repeat(2,1fr)}
.news-list{grid-template-columns:1fr}
.stats-grid{grid-template-columns:repeat(2,1fr)}
.steps-grid{grid-template-columns:repeat(2,1fr);gap:24px}
.step-card::after{display:none}
.cats-grid{grid-template-columns:1fr}
.footer-grid{grid-template-columns:1fr 1fr}
}

@media(max-width:768px){
:root{--spacer:56px}
.site-header{background:rgba(255,255,255,.95)}
.nav-toggle{display:flex}
.main-nav{position:fixed;top:var(--header-h);left:0;right:0;background:#fff;flex-direction:column;align-items:flex-start;padding:20px 24px;border-bottom:1px solid var(--border);box-shadow:var(--shadow-lg);transform:translateY(-120%);opacity:0;visibility:hidden;transition:var(--transition)}
.main-nav.open{transform:translateY(0);opacity:1;visibility:visible}
.main-nav .nav-link{width:100%;padding:14px 18px;border-radius:10px}
.features-grid{grid-template-columns:1fr}
.hero{padding-top:calc(var(--header-h) + 48px);padding-bottom:56px}
.hero h1{font-size:32px}
.hero-stats{grid-template-columns:repeat(3,1fr);gap:12px}
.hero-stat .hs-num{font-size:22px}
.news-list{grid-template-columns:1fr}
.stats-grid{grid-template-columns:repeat(2,1fr);gap:12px}
.stat-num{font-size:30px}
.footer-grid{grid-template-columns:1fr}
.cta-btns{flex-direction:column;align-items:center}
.cta-btns .btn{width:100%;max-width:280px}
.hero-btns{flex-direction:column;align-items:flex-start}
.hero-btns .btn{width:100%;max-width:280px}
.section-title{font-size:24px}
.section{padding:48px 0}
}

@media(max-width:520px){
.container{padding:0 18px}
.stats-grid{grid-template-columns:1fr 1fr}
.stat-num{font-size:26px}
.steps-grid{grid-template-columns:1fr}
.step-card{padding:0}
.footer-bottom{flex-direction:column;text-align:center}
.hero-stats{grid-template-columns:1fr;gap:8px}
.hero-stat{text-align:center}
.vc-item{flex-direction:column;text-align:center}
.vc-info{width:100%}
}

/* roulang page: category1 */
:root{
--primary:#1a2b4a;--primary-light:#2c3e6b;--accent:#e63946;--accent-hover:#c1121f;
--bg:#f8f9fb;--bg-white:#fff;--bg-dark:#0f1923;--text:#1a1a2e;--text-light:#5a6b7d;
--text-lighter:#8a9bae;--border:#e8ecf2;--radius:16px;--radius-sm:10px;
--shadow-sm:0 2px 8px rgba(0,0,0,.04);--shadow:0 4px 24px rgba(0,0,0,.06);
--shadow-lg:0 12px 36px rgba(0,0,0,.1);--transition:.3s ease;--space:80px;
--font-sans:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-sans);color:var(--text);background:var(--bg);line-height:1.7;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .2s}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.grid-container{padding-left:24px;padding-right:24px;max-width:1200px}

.site-header{
position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);
border-bottom:1px solid var(--border);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:70px}
.brand-logo{display:flex;align-items:center;gap:10px;font-size:1.45rem;font-weight:800;color:var(--primary);letter-spacing:-.5px}
.logo-mark{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--primary),var(--accent));display:flex;align-items:center;justify-content:center;color:#fff;font-size:14px}
.main-nav{display:flex;align-items:center;gap:8px}
.main-nav .nav-link{padding:8px 18px;border-radius:8px;font-size:.95rem;font-weight:500;color:var(--text-light)}
.main-nav .nav-link:hover{color:var(--primary);background:rgba(26,43,74,.05)}
.main-nav .nav-link.active{color:var(--primary);background:rgba(26,43,74,.08);font-weight:600;box-shadow:inset 0 0 0 1px rgba(26,43,74,.08)}
.nav-toggle{display:none;background:none;border:none;flex-direction:column;gap:5px;padding:8px;cursor:pointer}
.nav-toggle span{width:26px;height:2px;background:var(--text);border-radius:2px;transition:.3s}

.page-hero{
position:relative;padding:100px 0 90px;background:linear-gradient(135deg,rgba(15,25,35,.92),rgba(26,43,74,.82)),url('/assets/images/backpic/back-2.png') center/cover no-repeat;
color:#fff;overflow:hidden;
}
.page-hero::after{content:'';position:absolute;bottom:0;left:0;right:0;height:80px;background:linear-gradient(transparent,var(--bg));}
.hero-breadcrumb{display:flex;align-items:center;gap:8px;font-size:.85rem;color:rgba(255,255,255,.7);margin-bottom:28px}
.hero-breadcrumb a:hover{color:#fff}
.hero-breadcrumb i{font-size:.7rem;opacity:.6}
.hero-title{font-size:3rem;font-weight:800;line-height:1.2;margin:0 0 16px;letter-spacing:-1px}
.hero-subtitle{font-size:1.1rem;color:rgba(255,255,255,.85);max-width:600px;margin-bottom:36px;line-height:1.7}
.hero-stats{display:flex;gap:40px;flex-wrap:wrap}
.hero-stat{display:flex;flex-direction:column}
.hero-stat .num{font-size:1.8rem;font-weight:800;color:#fff;line-height:1.2}
.hero-stat .label{font-size:.85rem;color:rgba(255,255,255,.65);margin-top:4px}

.section{padding:var(--space) 0}
.section-head{text-align:center;max-width:640px;margin:0 auto 48px}
.section-tag{display:inline-block;padding:4px 16px;border-radius:20px;background:rgba(230,57,70,.08);color:var(--accent);font-size:.85rem;font-weight:600;margin-bottom:14px}
.section-title{font-size:2.2rem;font-weight:800;color:var(--text);letter-spacing:-.5px;margin-bottom:12px}
.section-desc{color:var(--text-light);font-size:1rem;line-height:1.7}

.featured-card{background:var(--bg-white);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .3s ease,box-shadow .3s ease;height:100%;display:flex;flex-direction:column;border:1px solid var(--border)}
.featured-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.featured-card .card-img{position:relative;aspect-ratio:16/10;overflow:hidden}
.featured-card .card-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.featured-card:hover .card-img img{transform:scale(1.05)}
.featured-card .card-tag{position:absolute;top:14px;left:14px;padding:5px 14px;border-radius:20px;background:rgba(230,57,70,.92);color:#fff;font-size:.78rem;font-weight:600;backdrop-filter:blur(4px)}
.featured-card .card-body{padding:24px;display:flex;flex-direction:column;flex:1}
.featured-card .card-title{font-size:1.15rem;font-weight:700;color:var(--text);margin:0 0 10px;line-height:1.45}
.featured-card .card-title a:hover{color:var(--accent)}
.featured-card .card-text{color:var(--text-light);font-size:.9rem;line-height:1.6;flex:1;margin-bottom:16px}
.featured-card .card-meta{display:flex;align-items:center;gap:14px;font-size:.8rem;color:var(--text-lighter);padding-top:14px;border-top:1px solid var(--border)}
.featured-card .card-meta i{font-size:.85rem}

.news-row{display:grid;grid-template-columns:1.8fr 1fr;gap:40px}
.news-list{background:var(--bg-white);border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--border);overflow:hidden}
.news-list-header{padding:20px 24px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}
.news-list-header h3{font-size:1.1rem;font-weight:700;color:var(--text)}
.news-list-header a{font-size:.85rem;color:var(--accent);font-weight:500}
.news-list-body{padding:0;margin:0}
.news-item{display:flex;align-items:center;gap:16px;padding:18px 24px;border-bottom:1px solid var(--border);transition:background .2s}
.news-item:last-child{border-bottom:none}
.news-item:hover{background:rgba(26,43,74,.02)}
.news-date{display:flex;flex-direction:column;align-items:center;justify-content:center;min-width:52px;padding:8px 12px;background:var(--bg);border-radius:10px;text-align:center}
.news-date .day{font-size:1.2rem;font-weight:800;color:var(--primary);line-height:1.2}
.news-date .month{font-size:.7rem;color:var(--text-lighter)}
.news-content{flex:1;min-width:0}
.news-content .news-tag{display:inline-block;padding:2px 10px;border-radius:12px;font-size:.72rem;font-weight:600;margin-bottom:4px;background:rgba(230,57,70,.08);color:var(--accent)}
.news-content .news-title{font-size:.95rem;font-weight:600;color:var(--text);line-height:1.4;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.news-content .news-title:hover{color:var(--accent)}
.news-time{font-size:.8rem;color:var(--text-lighter);white-space:nowrap}

.sidebar-stack{display:flex;flex-direction:column;gap:24px}
.sidebar-box{background:var(--bg-white);border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--border);padding:28px}
.sidebar-box h4{font-size:1rem;font-weight:700;margin-bottom:20px;color:var(--text);position:relative;padding-bottom:12px}
.sidebar-box h4::after{content:'';position:absolute;bottom:0;left:0;width:36px;height:3px;background:var(--accent);border-radius:3px}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.tag-pill{padding:6px 14px;border-radius:20px;background:var(--bg);border:1px solid var(--border);font-size:.8rem;color:var(--text-light);transition:.2s}
.tag-pill:hover{border-color:var(--accent);color:var(--accent);background:rgba(230,57,70,.04)}
.subscribe-form{margin-top:4px}
.subscribe-form .input-group{display:flex;gap:10px}
.subscribe-form input[type="email"]{flex:1;padding:10px 14px;border:1px solid var(--border);border-radius:10px;font-size:.9rem;outline:none;transition:border .2s}
.subscribe-form input[type="email"]:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(230,57,70,.1)}

.stats-band{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-light) 100%);padding:70px 0;color:#fff}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px}
.stat-item{text-align:center;padding:20px}
.stat-item .stat-icon{width:56px;height:56px;margin:0 auto 16px;border-radius:16px;background:rgba(255,255,255,.1);display:flex;align-items:center;justify-content:center;font-size:1.4rem;color:#fff}
.stat-item .stat-num{font-size:2.4rem;font-weight:800;line-height:1.2}
.stat-item .stat-label{font-size:.9rem;color:rgba(255,255,255,.7);margin-top:6px}

.subcat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.subcat-card{position:relative;border-radius:var(--radius);overflow:hidden;height:240px;display:flex;align-items:flex-end;box-shadow:var(--shadow);cursor:pointer;transition:transform .3s ease,box-shadow .3s ease}
.subcat-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.subcat-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s}
.subcat-card:hover img{transform:scale(1.06)}
.subcat-card::after{content:'';position:absolute;inset:0;background:linear-gradient(to top,rgba(15,25,35,.85) 0%,rgba(15,25,35,.2) 60%,transparent 100%)}
.subcat-info{position:relative;z-index:1;padding:24px;color:#fff;width:100%}
.subcat-info h3{font-size:1.15rem;font-weight:700;margin-bottom:4px}
.subcat-info p{font-size:.8rem;color:rgba(255,255,255,.7);margin:0}
.subcat-info .subcat-link{margin-top:8px;font-size:.8rem;color:#fff;opacity:.8;display:inline-flex;align-items:center;gap:6px}
.subcat-info .subcat-link:hover{opacity:1;gap:10px}

.faq-wrap{max-width:780px;margin:0 auto}
.faq-item{background:var(--bg-white);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:14px;overflow:hidden;transition:box-shadow .2s}
.faq-item.active{box-shadow:var(--shadow)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;padding:20px 24px;background:none;border:none;text-align:left;font-size:1rem;font-weight:600;color:var(--text);cursor:pointer;transition:color .2s}
.faq-q:hover{color:var(--accent)}
.faq-q .faq-icon{width:28px;height:28px;border-radius:50%;background:var(--bg);display:flex;align-items:center;justify-content:center;font-size:.85rem;color:var(--text-light);transition:.3s;flex-shrink:0}
.faq-item.active .faq-icon{background:var(--accent);color:#fff;transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease}
.faq-a-inner{padding:0 24px 20px;color:var(--text-light);font-size:.92rem;line-height:1.7}

.cta-section{background:linear-gradient(135deg,rgba(230,57,70,.06),rgba(26,43,74,.1)),url('/assets/images/backpic/back-3.png') center/cover;padding:100px 0}
.cta-inner{text-align:center;max-width:720px;margin:0 auto}
.cta-title{font-size:2.2rem;font-weight:800;color:var(--text);margin-bottom:16px}
.cta-desc{color:var(--text-light);font-size:1rem;margin-bottom:32px}
.cta-btn{display:inline-flex;align-items:center;gap:10px;padding:14px 32px;border-radius:30px;background:var(--accent);color:#fff;font-weight:600;font-size:1rem;transition:.3s;border:none;box-shadow:0 4px 16px rgba(230,57,70,.3)}
.cta-btn:hover{background:var(--accent-hover);transform:translateY(-2px);box-shadow:0 6px 24px rgba(230,57,70,.4)}
.cta-btn i{font-size:.9rem}

.site-footer{background:var(--bg-dark);color:rgba(255,255,255,.7);padding:60px 0 30px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1.2fr;gap:40px;margin-bottom:40px}
.footer-brand .brand-logo{color:#fff;font-size:1.4rem;margin-bottom:16px}
.footer-brand p{font-size:.88rem;line-height:1.7;color:rgba(255,255,255,.55);max-width:300px}
.footer-nav h4,.footer-contact h4{color:#fff;font-size:.95rem;font-weight:700;margin-bottom:16px}
.footer-nav a{display:block;color:rgba(255,255,255,.55);font-size:.88rem;padding:5px 0;transition:.2s}
.footer-nav a:hover{color:var(--accent);padding-left:4px}
.footer-contact p{font-size:.88rem;margin:0 0 10px;color:rgba(255,255,255,.55)}
.footer-contact i{margin-right:8px;color:rgba(255,255,255,.4)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:20px;display:flex;justify-content:space-between;flex-wrap:wrap;font-size:.8rem;color:rgba(255,255,255,.4)}

@media(max-width:1024px){
.news-row{grid-template-columns:1fr}
.subcat-grid{grid-template-columns:repeat(2,1fr)}
.stats-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
.header-inner{height:60px}
.main-nav{display:none;position:absolute;top:60px;left:0;right:0;background:#fff;border-bottom:1px solid var(--border);padding:16px;flex-direction:column;gap:8px;box-shadow:var(--shadow)}
.main-nav.open{display:flex}
.nav-toggle{display:flex}
.page-hero{padding:70px 0 70px}
.hero-title{font-size:2rem}
.hero-subtitle{font-size:.95rem}
.hero-stats{gap:20px}
.section{padding:50px 0}
.section-title{font-size:1.6rem}
.footer-grid{grid-template-columns:1fr}
.cta-section{padding:60px 0}
.cta-title{font-size:1.6rem}
}
@media(max-width:520px){
.container{padding:0 16px}
.hero-title{font-size:1.6rem}
.hero-stats{flex-direction:column;gap:12px}
.subcat-grid{grid-template-columns:1fr}
.stats-grid{grid-template-columns:1fr}
.news-item{flex-wrap:wrap;gap:10px}
.news-time{display:none}
.news-content .news-title{white-space:normal}
.faq-q{font-size:.9rem;padding:16px}
}

/* roulang page: article */
:root {
  --primary: #0b2545;
  --primary-light: #11407a;
  --accent: #ff5c35;
  --accent-hover: #e84a24;
  --bg: #f4f7fb;
  --bg-deep: #eef2f8;
  --white: #ffffff;
  --text: #17212b;
  --text-light: #5b6b7d;
  --border: #e3e9f0;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 8px rgba(11, 37, 69, 0.06);
  --shadow-md: 0 8px 24px rgba(11, 37, 69, 0.08);
  --shadow-lg: 0 20px 48px rgba(11, 37, 69, 0.14);
  --transition: all 0.3s ease;
  --font: "PingFang SC", "Microsoft YaHei", -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
}
*, *::before, *::after {
  box-sizing: border-box;
}
html, body {
  margin: 0;
  padding: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
button {
  font-family: inherit;
  cursor: pointer;
}
input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: 50px;
  border: none;
  transition: var(--transition);
  line-height: 1.4;
  letter-spacing: 0.3px;
}
.btn-primary {
  background: var(--primary);
  color: var(--white);
  box-shadow: 0 6px 20px rgba(11, 37, 69, 0.25);
}
.btn-primary:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(11, 37, 69, 0.32);
}
.btn-light {
  background: var(--white);
  color: var(--primary);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
}
.btn-light:hover {
  background: #f0f3f8;
  transform: translateY(-2px);
}
.btn-outline-light {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255, 255, 255, 0.8);
}
.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.12);
  transform: translateY(-2px);
}
.btn:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}
.badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 30px;
  background: rgba(255, 92, 53, 0.12);
  color: var(--accent);
  letter-spacing: 0.3px;
}
.tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 30px;
  background: var(--bg-deep);
  color: var(--text-light);
  border: 1px solid var(--border);
  transition: var(--transition);
}
.tag:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.site-header {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 0 rgba(11, 37, 69, 0.02);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.5px;
  transition: opacity 0.3s;
}
.brand-logo:hover {
  opacity: 0.85;
}
.logo-mark {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 14px;
  box-shadow: 0 4px 12px rgba(11, 37, 69, 0.25);
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-link {
  position: relative;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  padding: 8px 4px;
  letter-spacing: 0.3px;
  transition: var(--transition);
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 3px;
  border-radius: 3px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s;
}
.nav-link:hover {
  color: var(--primary);
}
.nav-link:hover::after,
.nav-link.active::after {
  transform: scaleX(1);
  transform-origin: left;
}
.nav-link.active {
  color: var(--primary);
  font-weight: 600;
}
.nav-toggle {
  display: none;
  background: none;
  border: none;
  width: 40px;
  height: 40px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  padding: 8px;
  border-radius: 8px;
  transition: background 0.3s;
}
.nav-toggle:hover {
  background: var(--bg-deep);
}
.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: var(--transition);
}
.article-hero {
  background: linear-gradient(rgba(11, 37, 69, 0.88), rgba(11, 37, 69, 0.88)), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
  padding: 90px 0 70px;
  color: #fff;
  border-bottom: 4px solid var(--accent);
}
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.72);
  margin-bottom: 26px;
}
.breadcrumb a {
  color: rgba(255, 255, 255, 0.72);
  transition: var(--transition);
}
.breadcrumb a:hover {
  color: var(--white);
}
.breadcrumb .sep {
  font-size: 10px;
  color: rgba(255, 255, 255, 0.4);
}
.article-hero h1.article-title {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  line-height: 1.3;
  margin: 0 0 24px;
  max-width: 860px;
  letter-spacing: 0.5px;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.82);
}
.article-meta span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.article-meta i {
  color: var(--accent);
}
.article-content-section {
  padding: 60px 0;
  background: var(--bg);
}
.article-layout {
  align-items: flex-start;
}
.article-body-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  padding: 40px;
  overflow: hidden;
}
.article-cover {
  margin: -40px -40px 32px;
  overflow: hidden;
}
.article-cover img {
  width: 100%;
  max-height: 420px;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.article-cover:hover img {
  transform: scale(1.02);
}
.article-detail-content {
  font-size: 16px;
  line-height: 1.9;
  color: var(--text);
}
.article-detail-content h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--primary);
  margin: 40px 0 18px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--border);
}
.article-detail-content h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--primary);
  margin: 32px 0 14px;
}
.article-detail-content h4 {
  font-size: 18px;
  font-weight: 600;
  margin: 24px 0 10px;
}
.article-detail-content p {
  margin-bottom: 20px;
}
.article-detail-content img {
  border-radius: var(--radius-md);
  margin: 24px 0;
  box-shadow: var(--shadow-sm);
}
.article-detail-content ul,
.article-detail-content ol {
  margin: 0 0 20px 22px;
}
.article-detail-content ul {
  list-style: disc;
}
.article-detail-content ol {
  list-style: decimal;
}
.article-detail-content blockquote {
  border-left: 4px solid var(--accent);
  background: #fff6f2;
  padding: 18px 22px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 24px 0;
  color: var(--text-light);
  font-style: italic;
}
.article-detail-content a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.article-detail-content a:hover {
  color: var(--accent-hover);
}
.article-tags {
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}
.tag-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-light);
}
.empty-content {
  padding: 30px 0;
  color: var(--text-light);
  text-align: center;
  font-size: 15px;
  background: var(--bg-deep);
  border-radius: var(--radius-md);
}
.article-sidebar-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  padding: 28px;
  margin-bottom: 24px;
  position: sticky;
  top: 100px;
}
.sidebar-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  padding: 28px;
  margin-bottom: 24px;
}
.sidebar-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  margin: 0 0 18px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--accent);
  display: inline-block;
}
.sidebar-posts li {
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.sidebar-posts li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}
.sidebar-posts a {
  display: flex;
  flex-direction: column;
  gap: 4px;
  transition: var(--transition);
}
.sidebar-posts a:hover .sidebar-post-title {
  color: var(--accent);
}
.sidebar-post-date {
  font-size: 12px;
  color: var(--text-light);
}
.sidebar-post-title {
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  line-height: 1.5;
  transition: var(--transition);
}
.sidebar-category {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}
.related-section {
  padding: 70px 0;
  background: var(--white);
  border-top: 1px solid var(--border);
}
.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 48px;
}
.section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  background: rgba(255, 92, 53, 0.1);
  padding: 6px 18px;
  border-radius: 30px;
  margin-bottom: 14px;
  letter-spacing: 1px;
}
.section-header h2 {
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 700;
  color: var(--primary);
  margin: 0 0 12px;
  line-height: 1.3;
}
.section-header p {
  font-size: 15px;
  color: var(--text-light);
  margin: 0;
}
.related-item {
  margin-bottom: 20px;
}
.related-card {
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px;
  height: 100%;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}
.related-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--primary-light));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s;
}
.related-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.related-card:hover::before {
  transform: scaleX(1);
}
.related-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}
.related-meta .date {
  font-size: 12px;
  color: var(--text-light);
}
.related-card h3 {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.5;
  margin: 0 0 12px;
  color: var(--text);
  transition: var(--transition);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-card h3 a:hover {
  color: var(--accent);
}
.related-card p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.6;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.faq-section {
  padding: 70px 0;
  background: var(--bg);
}
.faq-grid {
  row-gap: 24px;
}
.faq-col {
  margin-bottom: 0;
}
.faq-item {
  background: var(--white);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  padding: 26px 28px;
  display: flex;
  gap: 18px;
  transition: var(--transition);
  height: 100%;
}
.faq-item:hover {
  box-shadow: var(--shadow-md);
  border-color: transparent;
}
.faq-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), #ff8a5c);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 14px;
  flex-shrink: 0;
}
.faq-text h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--primary);
  margin: 0 0 8px;
  line-height: 1.5;
}
.faq-text p {
  font-size: 14px;
  color: var(--text-light);
  margin: 0;
  line-height: 1.7;
}
.cta-section {
  padding: 80px 0;
  background: linear-gradient(rgba(11, 37, 69, 0.9), rgba(11, 37, 69, 0.9)), url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
  text-align: center;
}
.cta-box {
  max-width: 640px;
  margin: 0 auto;
}
.cta-box h2 {
  color: #fff;
  font-size: clamp(26px, 3.5vw, 38px);
  font-weight: 700;
  margin: 0 0 16px;
  line-height: 1.3;
}
.cta-box p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 16px;
  margin: 0 0 32px;
}
.cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.not-found-hero {
  padding: 100px 0;
  background: var(--bg);
  min-height: 60vh;
  display: flex;
  align-items: center;
}
.not-found-box {
  text-align: center;
  max-width: 480px;
  margin: 0 auto;
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
  padding: 60px 40px;
}
.not-found-box i {
  font-size: 48px;
  color: var(--accent);
  margin-bottom: 20px;
}
.not-found-box h1 {
  font-size: 28px;
  font-weight: 700;
  color: var(--primary);
  margin: 0 0 12px;
}
.not-found-box p {
  color: var(--text-light);
  margin: 0 0 28px;
}
.site-footer {
  background: #0a1e3a;
  color: rgba(255, 255, 255, 0.75);
  padding: 60px 0 0;
  border-top: 4px solid var(--accent);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
}
.footer-brand .brand-logo {
  color: #fff;
  margin-bottom: 16px;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  margin: 12px 0 0;
  max-width: 320px;
}
.footer-brand .logo-mark {
  background: linear-gradient(135deg, var(--accent), #ff8a5c);
}
.footer-nav h4,
.footer-contact h4 {
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  margin: 0 0 18px;
  letter-spacing: 0.5px;
}
.footer-nav a {
  display: block;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  padding: 5px 0;
  transition: var(--transition);
}
.footer-nav a:hover {
  color: var(--accent);
  padding-left: 6px;
}
.footer-contact p {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  margin: 8px 0;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 22px 0;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}
.site-footer .container .footer-bottom {
  max-width: 1200px;
}
.site-footer .container {
  padding-bottom: 0;
}
@media (max-width: 1024px) {
  .article-body-card {
    padding: 28px;
  }
  .article-cover {
    margin: -28px -28px 24px;
  }
  .article-sidebar-card {
    position: static;
  }
  .article-sidebar-col {
    margin-top: 32px;
  }
}
@media (max-width: 768px) {
  .header-inner {
    height: 68px;
  }
  .nav-toggle {
    display: flex;
  }
  .main-nav {
    display: none;
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    width: 100%;
    background: var(--white);
    border-bottom: 1px solid var(--border);
    padding: 20px 24px 24px;
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    box-shadow: var(--shadow-lg);
    z-index: 99;
  }
  .main-nav.open {
    display: flex;
  }
  .nav-link {
    display: block;
    width: 100%;
    padding: 12px 4px;
    font-size: 16px;
    border-bottom: 1px solid var(--bg-deep);
  }
  .nav-link::after {
    display: none;
  }
  .nav-link.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
  }
  .article-hero {
    padding: 60px 0 44px;
  }
  .article-hero h1.article-title {
    font-size: 26px;
  }
  .article-meta {
    gap: 12px;
    font-size: 13px;
  }
  .article-content-section {
    padding: 36px 0;
  }
  .article-body-card {
    padding: 20px;
  }
  .article-cover {
    margin: -20px -20px 20px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .section-header {
    margin-bottom: 32px;
  }
  .cta-section {
    padding: 56px 0;
  }
  .cta-actions {
    flex-direction: column;
    align-items: center;
  }
  .btn {
    width: 100%;
    max-width: 280px;
  }
}
@media (max-width: 520px) {
  .container {
    padding: 0 18px;
  }
  .brand-logo {
    font-size: 19px;
  }
  .logo-mark {
    width: 32px;
    height: 32px;
    font-size: 12px;
  }
  .article-hero h1.article-title {
    font-size: 22px;
  }
  .article-meta {
    flex-direction: column;
    gap: 8px;
  }
  .article-body-card {
    border-radius: var(--radius-md);
    padding: 16px;
  }
  .article-cover {
    margin: -16px -16px 16px;
  }
  .related-card {
    padding: 20px;
  }
  .faq-item {
    flex-direction: column;
    gap: 12px;
    padding: 22px;
  }
  .faq-icon {
    width: 32px;
    height: 32px;
    font-size: 12px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* roulang page: category2 */
:root {
  --primary: #081f3a;
  --primary-dark: #050f1f;
  --blue: #1e5eff;
  --blue-light: #4d86ff;
  --accent: #e8b62a;
  --accent-dark: #c99a18;
  --bg: #f4f7fb;
  --white: #ffffff;
  --text: #1e293b;
  --text-weak: #64748b;
  --border: #e6ebf2;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 8px rgba(8, 31, 58, .05);
  --shadow: 0 12px 32px rgba(8, 31, 58, .10);
  --shadow-lg: 0 24px 48px rgba(8, 31, 58, .12);
  --transition: all .3s cubic-bezier(.4, 0, .2, 1);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

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

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

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

button, input, textarea, select {
  font-family: inherit;
}

a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 3px solid rgba(30, 94, 255, .4);
  outline-offset: 2px;
  border-radius: 4px;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.site-header {
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: .5px;
  transition: var(--transition);
}

.brand-logo:hover {
  opacity: .85;
}

.logo-mark {
  width: 38px;
  height: 38px;
  background: var(--primary);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  font-size: 16px;
  box-shadow: 0 4px 14px rgba(8, 31, 58, .18);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  padding: 8px 18px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-weak);
  border-radius: 20px;
  transition: var(--transition);
  position: relative;
}

.nav-link:hover {
  color: var(--primary);
  background: rgba(8, 31, 58, .04);
}

.nav-link.active {
  background: rgba(30, 94, 255, .10);
  color: var(--blue);
  font-weight: 600;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 8px;
  border-radius: 8px;
  transition: var(--transition);
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: var(--transition);
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.page-banner {
  position: relative;
  background-size: cover;
  background-position: center;
  background-color: var(--primary-dark);
  padding: 120px 0;
  color: #fff;
}

.banner-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(5, 15, 31, .92) 0%, rgba(8, 31, 58, .78) 50%, rgba(30, 94, 255, .45) 100%);
  z-index: 1;
}

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

.banner-content {
  max-width: 820px;
  margin: 0 auto;
  text-align: center;
}

.banner-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(232, 182, 42, .15);
  border: 1px solid rgba(232, 182, 42, .4);
  color: var(--accent);
  padding: 6px 18px;
  border-radius: 24px;
  font-size: 13px;
  letter-spacing: 1px;
  font-weight: 600;
}

.banner-content h1 {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.2;
  margin: 20px 0 16px;
  letter-spacing: -1px;
}

.banner-content p {
  font-size: 17px;
  color: rgba(255, 255, 255, .8);
  max-width: 620px;
  margin: 0 auto;
}

.breadcrumb {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  margin-top: 24px;
  font-size: 14px;
  color: rgba(255, 255, 255, .7);
}

.breadcrumb a {
  color: rgba(255, 255, 255, .7);
  transition: var(--transition);
}

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

.breadcrumb .sep {
  opacity: .5;
}

.breadcrumb .current {
  color: var(--accent);
  font-weight: 600;
}

.site-section {
  padding: 90px 0;
}

.site-section.is-white {
  background: var(--white);
}

.site-section.is-light {
  background: var(--bg);
}

.site-section.is-dark {
  background: var(--primary);
}

.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 56px;
}

.section-eyebrow {
  display: inline-block;
  color: var(--blue);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.section-head h2 {
  font-size: 36px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.3;
  letter-spacing: -0.5px;
}

.section-head p {
  color: var(--text-weak);
  font-size: 16px;
  margin-top: 12px;
}

.is-dark .section-eyebrow {
  color: var(--accent);
}

.is-dark .section-head h2 {
  color: #fff;
}

.is-dark .section-head p {
  color: rgba(255, 255, 255, .72);
}

.grid-x > .cell {
  margin-bottom: 28px;
}

.category-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.category-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
  border-color: rgba(30, 94, 255, .25);
}

.category-card .card-img {
  height: 200px;
  overflow: hidden;
  position: relative;
}

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

.category-card:hover .card-img img {
  transform: scale(1.05);
}

.category-card .card-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.card-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  color: var(--blue);
  background: rgba(30, 94, 255, .08);
  padding: 4px 12px;
  border-radius: 20px;
  align-self: flex-start;
  margin-bottom: 12px;
}

.category-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
}

.category-card p {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.7;
  flex: 1;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--blue);
  margin-top: 16px;
  transition: var(--transition);
}

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

.guide-card {
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
  display: flex;
  flex-direction: row;
  height: 100%;
  transition: var(--transition);
}

.guide-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-4px);
  border-color: rgba(30, 94, 255, .25);
}

.guide-img {
  position: relative;
  width: 260px;
  min-height: 220px;
  flex-shrink: 0;
  overflow: hidden;
}

.guide-img img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}

.guide-card:hover .guide-img img {
  transform: scale(1.04);
}

.guide-body {
  padding: 24px 28px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  flex: 1;
}

.guide-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 13px;
  color: var(--text-weak);
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.badge {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(30, 94, 255, .10);
  color: var(--blue);
  font-size: 12px;
  font-weight: 600;
  border-radius: 20px;
  border: 1px solid rgba(30, 94, 255, .15);
}

.guide-body h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.4;
  margin-bottom: 8px;
}

.guide-body p {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.7;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--blue);
  margin-top: 14px;
  transition: var(--transition);
}

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

.process-step {
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .10);
  border-radius: var(--radius);
  padding: 40px 24px;
  text-align: center;
  height: 100%;
  transition: var(--transition);
}

.process-step:hover {
  transform: translateY(-6px);
  background: rgba(255, 255, 255, .10);
  border-color: rgba(232, 182, 42, .35);
}

.step-num {
  font-size: 34px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 14px;
}

.process-step h3 {
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}

.process-step p {
  color: rgba(255, 255, 255, .72);
  font-size: 14px;
  line-height: 1.7;
}

.stat-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 44px 20px;
  text-align: center;
  height: 100%;
  transition: var(--transition);
}

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

.stat-num {
  font-size: 46px;
  font-weight: 800;
  color: var(--blue);
  line-height: 1.2;
  letter-spacing: -1px;
}

.stat-label {
  font-size: 15px;
  color: var(--text-weak);
  margin-top: 8px;
}

.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: rgba(30, 94, 255, .30);
  box-shadow: var(--shadow-sm);
}

.faq-item summary {
  padding: 22px 26px;
  cursor: pointer;
  font-weight: 600;
  font-size: 16px;
  color: var(--primary);
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: var(--transition);
}

.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(--blue);
  transition: transform .3s ease;
}

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

.faq-item[open] summary {
  border-bottom: 1px solid var(--border);
}

.faq-answer {
  padding: 20px 26px;
  color: var(--text-weak);
  font-size: 15px;
  line-height: 1.8;
}

.cta-section {
  background: linear-gradient(135deg, var(--primary-dark) 0%, #0d3b7d 60%, var(--blue) 100%);
  padding: 90px 0;
}

.cta-content {
  max-width: 680px;
  margin: 0 auto;
  text-align: center;
  color: #fff;
}

.cta-content h2 {
  font-size: 36px;
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.5px;
}

.cta-content p {
  color: rgba(255, 255, 255, .8);
  font-size: 16px;
  margin-top: 14px;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: 32px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 30px;
  border-radius: 40px;
  font-weight: 600;
  font-size: 15px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  line-height: 1.4;
}

.btn-primary {
  background: var(--blue);
  color: #fff;
  box-shadow: 0 8px 20px rgba(30, 94, 255, .35);
}

.btn-primary:hover {
  background: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(8, 31, 58, .25);
}

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

.btn-outline:hover {
  background: rgba(255, 255, 255, .12);
  border-color: #fff;
  transform: translateY(-2px);
}

.site-footer {
  background: var(--primary-dark);
  color: rgba(255, 255, 255, .75);
  padding: 70px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 50px;
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}

.site-footer .brand-logo {
  color: #fff;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  margin-top: 16px;
  color: rgba(255, 255, 255, .6);
  max-width: 340px;
}

.footer-nav h4,
.footer-contact h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 18px;
}

.footer-nav a {
  display: block;
  color: rgba(255, 255, 255, .6);
  font-size: 14px;
  padding: 6px 0;
  transition: var(--transition);
}

.footer-nav a:hover {
  color: var(--accent);
  padding-left: 8px;
}

.footer-contact p {
  font-size: 14px;
  color: rgba(255, 255, 255, .6);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-bottom {
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: rgba(255, 255, 255, .45);
  flex-wrap: wrap;
  gap: 8px;
}

@media (max-width: 1024px) {
  .container {
    padding: 0 20px;
  }

  .page-banner {
    padding: 90px 0;
  }

  .banner-content h1 {
    font-size: 40px;
  }

  .section-head h2 {
    font-size: 32px;
  }

  .guide-img {
    width: 220px;
  }
}

@media (max-width: 860px) {
  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: 72px;
    right: 0;
    width: 280px;
    background: var(--white);
    border-left: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    flex-direction: column;
    align-items: stretch;
    padding: 24px;
    gap: 4px;
    transform: translateX(105%);
    transition: transform .35s ease;
    z-index: 99;
    border-radius: 0 0 0 var(--radius);
  }

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

  .nav-link {
    padding: 12px 14px;
    border-radius: var(--radius-sm);
  }

  .site-section {
    padding: 70px 0;
  }

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

  .guide-img {
    width: 100%;
    height: 220px;
    min-height: 0;
  }

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

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

  .banner-content h1 {
    font-size: 30px;
  }

  .banner-content p {
    font-size: 15px;
  }

  .breadcrumb {
    flex-wrap: wrap;
  }

  .section-head h2 {
    font-size: 26px;
  }

  .section-head p {
    font-size: 15px;
  }

  .site-section {
    padding: 56px 0;
  }

  .grid-x > .cell {
    margin-bottom: 20px;
  }

  .guide-img {
    height: 180px;
  }

  .guide-body {
    padding: 20px;
  }

  .guide-meta {
    gap: 10px;
  }

  .cta-actions {
    flex-direction: column;
    width: 100%;
  }

  .btn {
    width: 100%;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

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

  .process-step,
  .stat-item {
    padding: 28px 16px;
  }

  .stat-num {
    font-size: 32px;
  }

  .faq-item summary {
    padding: 18px 20px;
    font-size: 15px;
  }

  .faq-answer {
    padding: 16px 20px;
    font-size: 14px;
  }
}