/* roulang page: index */
:root{
    --primary:#0b1f3a;--primary-light:#16345c;--primary-lighter:#1f4370;
    --accent:#e8b53a;--accent-dark:#c98f1a;--accent-light:#f5d47a;
    --dark:#081527;--text:#1e2a3a;--text-light:#60708a;--text-muted:#94a3b8;
    --bg:#f4f7fc;--white:#fff;--border:#dde5f0;--success:#2e9e6b;
    --radius:16px;--radius-sm:10px;
    --shadow-sm:0 2px 12px rgba(7,20,40,.06);
    --shadow-md:0 8px 30px rgba(7,20,40,.08);
    --shadow-lg:0 20px 60px rgba(7,20,40,.12);
    --transition:all .3s cubic-bezier(.4,0,.2,1);
    --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.75;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:var(--transition)}
button{font-family:inherit;cursor:pointer;border:none;background:none}
input{font-family:inherit}
.container{max-width:1280px;margin:0 auto;padding:0 28px;width:100%}
.site-header{position:fixed;top:0;left:0;right:0;z-index:1200;background:rgba(7,16,32,.86);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.06);transition:var(--transition)}
.site-header .header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:16px}
.brand{font-size:22px;font-weight:800;color:#fff;letter-spacing:1px;display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand .brand-badge{background:var(--accent);color:var(--dark);font-size:10px;font-weight:800;padding:2px 8px;border-radius:20px;letter-spacing:1px}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:24px}
.main-nav .nav-link{color:rgba(255,255,255,.75);font-size:14.5px;font-weight:600;padding:9px 16px;border-radius:30px;transition:var(--transition);position:relative;letter-spacing:.3px}
.main-nav .nav-link:hover{color:#fff;background:rgba(255,255,255,.08)}
.main-nav .nav-link.active{color:var(--accent);background:rgba(232,181,58,.12)}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.icon-btn{width:40px;height:40px;border-radius:50%;background:rgba(255,255,255,.08);color:#fff;display:flex;align-items:center;justify-content:center;transition:var(--transition);font-size:15px}
.icon-btn:hover{background:rgba(255,255,255,.16);transform:translateY(-1px)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:700;border-radius:40px;padding:12px 28px;font-size:15px;transition:var(--transition);border:2px solid transparent;letter-spacing:.3px}
.btn-primary{background:var(--accent);color:var(--dark);box-shadow:0 6px 18px rgba(232,181,58,.3)}
.btn-primary:hover{background:var(--accent-light);transform:translateY(-2px);box-shadow:0 10px 28px rgba(232,181,58,.4)}
.btn-outline{border-color:rgba(255,255,255,.4);color:#fff;background:transparent}
.btn-outline:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.btn-dark{background:var(--dark);color:#fff}
.btn-dark:hover{background:var(--primary-light);transform:translateY(-2px)}
.btn-sm{padding:8px 20px;font-size:13.5px}
.btn-lg{padding:15px 38px;font-size:16px}
.mobile-toggle{display:none;flex-direction:column;gap:5px;width:44px;height:44px;align-items:center;justify-content:center;border-radius:12px;background:rgba(255,255,255,.08)}
.mobile-toggle span{display:block;width:20px;height:2px;background:#fff;border-radius:2px;transition:var(--transition)}
.mobile-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.mobile-toggle.active span:nth-child(2){opacity:0}
.mobile-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-nav{display:none;position:fixed;top:72px;left:0;right:0;background:var(--dark);z-index:1199;padding:16px 24px 24px;flex-direction:column;gap:6px;border-bottom:1px solid rgba(255,255,255,.08)}
.mobile-nav.show{display:flex}
.mobile-nav a{color:rgba(255,255,255,.8);padding:13px 16px;border-radius:12px;font-weight:600;font-size:15px}
.mobile-nav a:hover,.mobile-nav a.active{background:rgba(255,255,255,.08);color:var(--accent)}
.hero{position:relative;min-height:100vh;display:flex;align-items:center;overflow:hidden;padding:120px 0 90px;background:url('/assets/images/backpic/back-1.png') center/cover no-repeat}
.hero::before{content:'';position:absolute;inset:0;background:linear-gradient(100deg,rgba(6,12,24,.94) 0%,rgba(8,20,40,.84) 42%,rgba(14,30,56,.56) 100%)}
.hero .container{position:relative;z-index:2}
.hero-grid{display:flex;align-items:center;gap:48px}
.hero-content{flex:1.15;padding-right:20px}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;background:rgba(232,181,58,.14);border:1px solid rgba(232,181,58,.3);color:var(--accent);font-size:13px;font-weight:700;padding:7px 18px;border-radius:30px;margin-bottom:24px;letter-spacing:1px}
.hero-eyebrow i{font-size:14px}
.hero-title{font-size:52px;font-weight:900;color:#fff;line-height:1.18;margin-bottom:20px;letter-spacing:1px}
.hero-title .highlight{color:var(--accent);position:relative}
.hero-subtitle{font-size:17.5px;color:rgba(255,255,255,.72);max-width:560px;line-height:1.85;margin-bottom:34px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.hero-stats{display:flex;gap:28px;margin-top:52px;flex-wrap:wrap}
.hero-stat .num{font-size:30px;font-weight:900;color:var(--accent);line-height:1.2}
.hero-stat .label{font-size:13px;color:rgba(255,255,255,.6);margin-top:4px;letter-spacing:.5px}
.hero-visual{flex:1;display:flex;justify-content:center;align-items:center}
.hero-card-stack{width:100%;max-width:440px;display:flex;flex-direction:column;gap:18px}
.hero-card{background:rgba(255,255,255,.07);backdrop-filter:blur(16px);border:1px solid rgba(255,255,255,.14);border-radius:20px;padding:24px 28px;display:flex;align-items:center;gap:18px;transition:var(--transition)}
.hero-card:hover{background:rgba(255,255,255,.12);transform:translateY(-3px)}
.hero-card .hc-icon{width:52px;height:52px;border-radius:14px;background:rgba(232,181,58,.15);color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:22px;flex-shrink:0}
.hero-card .hc-title{font-size:16px;font-weight:700;color:#fff;margin-bottom:3px}
.hero-card .hc-desc{font-size:13.5px;color:rgba(255,255,255,.6)}
.section{padding:96px 0}
.section-head{max-width:640px;margin:0 auto 56px;text-align:center}
.section-tag{display:inline-block;background:rgba(232,181,58,.12);color:var(--accent-dark);font-size:12.5px;font-weight:800;padding:6px 20px;border-radius:30px;letter-spacing:1.5px;margin-bottom:16px;text-transform:uppercase}
.section-title{font-size:36px;font-weight:900;color:var(--dark);line-height:1.25;margin-bottom:16px;letter-spacing:.5px}
.section-desc{font-size:16px;color:var(--text-light);line-height:1.8}
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.feature-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);padding:38px 32px;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(--accent),var(--accent-dark));transform:scaleX(0);transform-origin:left;transition:var(--transition)}
.feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.feature-card:hover::before{transform:scaleX(1)}
.feature-icon{width:62px;height:62px;border-radius:18px;background:linear-gradient(135deg,rgba(232,181,58,.18),rgba(232,181,58,.06));color:var(--accent-dark);display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:22px}
.feature-title{font-size:19px;font-weight:800;color:var(--dark);margin-bottom:12px}
.feature-text{font-size:14.5px;color:var(--text-light);line-height:1.8}
.category-section{background:var(--white)}
.category-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:36px}
.category-card{display:flex;background:var(--bg);border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);transition:var(--transition);align-items:stretch;min-height:280px}
.category-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.category-img{flex:1;min-height:280px;position:relative;overflow:hidden}
.category-img img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.category-card:hover .category-img img{transform:scale(1.06)}
.category-info{flex:1.2;padding:38px 34px;display:flex;flex-direction:column;justify-content:center}
.category-info .cat-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(232,181,58,.12);color:var(--accent-dark);font-size:12px;font-weight:700;padding:5px 16px;border-radius:30px;margin-bottom:14px}
.category-title{font-size:24px;font-weight:900;color:var(--dark);margin-bottom:12px}
.category-desc{font-size:14.5px;color:var(--text-light);line-height:1.8;margin-bottom:20px}
.category-arrow{display:inline-flex;align-items:center;gap:8px;font-weight:700;color:var(--primary);font-size:14px}
.category-arrow i{transition:transform .3s}
.category-card:hover .category-arrow i{transform:translateX(6px)}
.latest-section{background:var(--bg)}
.latest-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:32px;align-items:start}
.feature-post{background:var(--white);border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);transition:var(--transition);display:block}
.feature-post:hover{box-shadow:var(--shadow-md);transform:translateY(-3px)}
.feature-post .fp-cover{height:220px;overflow:hidden;position:relative}
.feature-post .fp-cover img{width:100%;height:100%;object-fit:cover}
.feature-post .fp-cover::after{content:'';position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,.3),transparent)}
.feature-post .fp-body{padding:28px}
.feature-post .fp-cat{display:inline-block;background:rgba(232,181,58,.12);color:var(--accent-dark);font-size:12px;font-weight:700;padding:4px 14px;border-radius:20px;margin-bottom:12px}
.feature-post .fp-title{font-size:20px;font-weight:800;color:var(--dark);line-height:1.4;margin-bottom:10px}
.feature-post .fp-excerpt{font-size:14px;color:var(--text-light);line-height:1.7;margin-bottom:16px}
.feature-post .fp-meta{font-size:13px;color:var(--text-muted);display:flex;align-items:center;gap:8px}
.post-list{display:flex;flex-direction:column;gap:14px}
.post-row{background:var(--white);border:1px solid var(--border);border-radius:14px;padding:20px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px;transition:var(--transition)}
.post-row:hover{box-shadow:var(--shadow-md);transform:translateX(4px);border-color:rgba(232,181,58,.3)}
.post-row .pr-content{min-width:0}
.post-row .pr-cat{font-size:11.5px;color:var(--accent-dark);font-weight:700;background:rgba(232,181,58,.1);padding:3px 12px;border-radius:20px;display:inline-block;margin-bottom:7px}
.post-row .pr-title{font-size:15.5px;font-weight:700;color:var(--dark);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:420px}
.post-row .pr-time{font-size:12.5px;color:var(--text-muted);flex-shrink:0;white-space:nowrap}
.empty-tip{background:var(--white);border:1px dashed var(--border);border-radius:14px;padding:36px;text-align:center;color:var(--text-muted);font-size:15px}
.stats-section{position:relative;background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;padding:100px 0}
.stats-section::before{content:'';position:absolute;inset:0;background:rgba(7,16,32,.92)}
.stats-section .container{position:relative;z-index:2}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px}
.stat-card{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:20px;padding:40px 28px;text-align:center;transition:var(--transition)}
.stat-card:hover{background:rgba(255,255,255,.1);transform:translateY(-4px)}
.stat-num{font-size:44px;font-weight:900;color:var(--accent);line-height:1.1;margin-bottom:8px;font-family:inherit}
.stat-label{font-size:14px;color:rgba(255,255,255,.65);letter-spacing:1px}
.steps-section{background:var(--white)}
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.step-item{text-align:center;padding:34px 22px;position:relative}
.step-item::after{content:'→';position:absolute;top:50%;right:-18px;font-size:26px;color:var(--accent);font-weight:900;transform:translateY(-50%)}
.step-item:last-child::after{display:none}
.step-num{width:64px;height:64px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent-dark));color:var(--dark);font-size:24px;font-weight:900;display:flex;align-items:center;justify-content:center;margin:0 auto 20px;box-shadow:0 8px 24px rgba(232,181,58,.3)}
.step-title{font-size:17px;font-weight:800;color:var(--dark);margin-bottom:10px}
.step-text{font-size:13.5px;color:var(--text-light);line-height:1.7}
.faq-section{background:var(--bg)}
.faq-list{max-width:800px;margin:0 auto;display:flex;flex-direction:column;gap:16px}
.faq-item{background:var(--white);border:1px solid var(--border);border-radius:16px;overflow:hidden;transition:var(--transition)}
.faq-item:hover{border-color:rgba(232,181,58,.3);box-shadow:var(--shadow-sm)}
.faq-item[open]{box-shadow:var(--shadow-md)}
.faq-item summary{list-style:none;cursor:pointer;padding:22px 28px;font-size:15.5px;font-weight:700;color:var(--dark);display:flex;align-items:center;justify-content:space-between;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);flex-shrink:0}
.faq-item[open] summary::after{transform:rotate(180deg)}
.faq-item .faq-answer{padding:0 28px 24px;font-size:14.5px;color:var(--text-light);line-height:1.85}
.faq-item .faq-answer a{color:var(--primary);font-weight:600}
.cta-section{padding:80px 0;background:var(--white)}
.cta-box{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-light) 60%,var(--primary-lighter) 100%);border-radius:28px;padding:72px 56px;text-align:center;position:relative;overflow:hidden}
.cta-box::before{content:'';position:absolute;top:-60px;right:-60px;width:200px;height:200px;border-radius:50%;background:rgba(232,181,58,.15)}
.cta-box::after{content:'';position:absolute;bottom:-80px;left:-40px;width:180px;height:180px;border-radius:50%;background:rgba(255,255,255,.05)}
.cta-title{font-size:34px;font-weight:900;color:#fff;margin-bottom:16px;position:relative;z-index:2}
.cta-desc{font-size:16px;color:rgba(255,255,255,.7);max-width:520px;margin:0 auto 32px;position:relative;z-index:2;line-height:1.8}
.cta-actions{position:relative;z-index:2;display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.site-footer{background:var(--dark);padding:70px 0 0;color:rgba(255,255,255,.65)}
.footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr 1fr;gap:48px;padding-bottom:50px}
.footer-brand .footer-logo{font-size:22px;font-weight:900;color:#fff;margin-bottom:16px;letter-spacing:1px}
.footer-brand p{font-size:14px;line-height:1.8;max-width:300px}
.footer-links h4,.footer-contact h4{color:#fff;font-size:16px;font-weight:700;margin-bottom:20px}
.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);padding-left:6px}
.footer-contact p{font-size:14px;margin-bottom:8px;line-height:1.7}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:22px 0;text-align:center;font-size:13px;color:rgba(255,255,255,.4)}
.footer-bottom a{color:rgba(255,255,255,.5)}
.footer-bottom a:hover{color:var(--accent)}
@media(max-width:1024px){
    .hero-title{font-size:42px}
    .hero-grid{flex-direction:column;gap:40px}
    .hero-content{flex:1;padding-right:0}
    .hero-visual{flex:1;width:100%}
    .hero-card-stack{max-width:100%;flex-direction:row;flex-wrap:wrap}
    .hero-card{flex:1;min-width:220px}
    .features-grid{grid-template-columns:repeat(2,1fr)}
    .category-grid{grid-template-columns:1fr}
    .latest-grid{grid-template-columns:1fr}
    .stats-grid{grid-template-columns:repeat(2,1fr)}
    .steps-grid{grid-template-columns:repeat(2,1fr)}
    .step-item:nth-child(2)::after{display:none}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media(max-width:768px){
    .site-header .header-inner{height:64px}
    .main-nav{display:none}
    .header-actions .icon-btn{display:none}
    .mobile-toggle{display:flex}
    .hero{padding:110px 0 70px}
    .hero-title{font-size:33px}
    .hero-subtitle{font-size:15.5px}
    .section{padding:70px 0}
    .section-title{font-size:29px}
    .features-grid{grid-template-columns:1fr}
    .category-card{flex-direction:column}
    .category-img{min-height:200px;flex:auto}
    .category-info{flex:auto;padding:28px 26px}
    .feature-post .fp-cover{height:180px}
    .stats-grid{grid-template-columns:repeat(2,1fr);gap:16px}
    .stat-num{font-size:32px}
    .steps-grid{grid-template-columns:1fr}
    .step-item::after{display:none}
    .step-item{display:flex;align-items:center;text-align:left;gap:20px;padding:18px}
    .step-num{margin:0;flex-shrink:0}
    .cta-box{padding:50px 26px;border-radius:20px}
    .cta-title{font-size:26px}
    .footer-grid{grid-template-columns:1fr}
    .footer-brand p{max-width:100%}
}
@media(max-width:520px){
    .container{padding:0 18px}
    .hero-title{font-size:28px}
    .hero-stats{gap:20px}
    .hero-stat .num{font-size:24px}
    .hero-card{padding:18px}
    .hero-card .hc-icon{width:44px;height:44px;font-size:18px}
    .stat-num{font-size:28px}
    .btn-lg{padding:13px 28px;font-size:15px}
    .section-title{font-size:25px}
}

/* roulang page: article */
:root {
            --primary: #14142a;
            --primary-light: #232342;
            --accent: #d4a853;
            --accent-light: #eac87a;
            --accent-dark: #b08a3a;
            --bg: #f6f5f2;
            --bg-dark: #0e0e1a;
            --card: #ffffff;
            --text: #16162a;
            --text-light: #6b7280;
            --text-white: #f2f1ed;
            --border: #e5e3de;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 8px 32px rgba(20, 20, 42, 0.08);
            --shadow-lg: 0 20px 48px rgba(20, 20, 42, 0.14);
            --transition: all 0.32s ease;
            --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
                "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-main);
            font-size: 16px;
            line-height: 1.65;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul,
        ol {
            list-style-position: inside;
        }
        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* ===== Header ===== */
        .main-header {
            position: sticky;
            top: 0;
            z-index: 120;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 18px rgba(20, 20, 42, 0.04);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            font-size: 1.45rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.02em;
            flex-shrink: 0;
            gap: 8px;
        }
        .brand-logo i {
            color: var(--accent);
            font-size: 1.35rem;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
        }
        .nav-link {
            padding: 9px 18px;
            border-radius: 999px;
            font-size: 0.94rem;
            font-weight: 600;
            color: var(--text);
            background: transparent;
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-link:hover {
            background: rgba(212, 168, 83, 0.12);
            color: var(--primary);
        }
        .nav-link.active {
            background: var(--primary);
            color: #fff;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .btn-header {
            background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
            color: #14142a;
            font-weight: 700;
            font-size: 0.88rem;
            padding: 10px 22px;
            border-radius: 999px;
            transition: var(--transition);
            box-shadow: 0 4px 14px rgba(212, 168, 83, 0.3);
        }
        .btn-header:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(212, 168, 83, 0.42);
            color: #14142a;
        }
        .nav-toggle {
            display: none;
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 8px;
            flex-shrink: 0;
        }
        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--primary);
            margin: 5px 0;
            border-radius: 2px;
            transition: var(--transition);
        }

        /* ===== Article Hero ===== */
        .article-hero {
            position: relative;
            background: linear-gradient(135deg, #101024 0%, #1c1c34 60%, #262648 100%);
            color: #fff;
            padding: 92px 0 76px;
            overflow: hidden;
        }
        .hero-bg-image {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: 0.2;
            z-index: 0;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(20, 20, 42, 0.62) 0%, rgba(20, 20, 42, 0.46) 50%, rgba(212, 168, 83, 0.12) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 820px;
            margin: 0 auto;
            text-align: center;
        }
        .article-category-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(212, 168, 83, 0.18);
            border: 1px solid rgba(212, 168, 83, 0.44);
            color: var(--accent-light);
            font-size: 0.82rem;
            font-weight: 700;
            padding: 7px 18px;
            border-radius: 999px;
            margin-bottom: 22px;
            letter-spacing: 0.06em;
        }
        .article-title {
            font-size: clamp(2rem, 4vw, 2.9rem);
            font-weight: 800;
            line-height: 1.24;
            margin-bottom: 20px;
            word-break: break-word;
        }
        .article-desc {
            font-size: 1.06rem;
            color: rgba(255, 255, 255, 0.82);
            line-height: 1.72;
            margin-bottom: 28px;
        }
        .article-meta-row {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 18px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
        }
        .article-meta-row span {
            display: inline-flex;
            align-items: center;
            gap: 7px;
        }
        .article-meta-row i {
            color: var(--accent);
        }
        .article-breadcrumb {
            position: relative;
            z-index: 2;
            text-align: center;
            margin-bottom: 26px;
            font-size: 0.86rem;
        }
        .article-breadcrumb a {
            color: rgba(255, 255, 255, 0.68);
        }
        .article-breadcrumb a:hover {
            color: var(--accent-light);
        }
        .article-breadcrumb .sep {
            margin: 0 10px;
            color: rgba(255, 255, 255, 0.36);
        }
        .article-breadcrumb .current {
            color: var(--accent-light);
        }

        /* ===== Article Main ===== */
        .article-main-section {
            padding: 64px 0 30px;
        }
        .article-layout {
            display: flex;
            gap: 32px;
            align-items: flex-start;
        }
        .article-content-col {
            flex: 1 1 70%;
            min-width: 0;
        }
        .article-sidebar-col {
            flex: 0 0 30%;
            max-width: 340px;
            position: sticky;
            top: 92px;
            display: flex;
            flex-direction: column;
            gap: 22px;
        }

        /* Article Body Card */
        .article-card {
            background: var(--card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            padding: 44px 46px;
            margin-bottom: 20px;
        }
        .content-body {
            font-size: 1.03rem;
            line-height: 1.88;
            color: #34344a;
        }
        .content-body h2 {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary);
            margin: 2.2rem 0 1rem;
            padding-bottom: 8px;
            border-bottom: 2px solid rgba(212, 168, 83, 0.3);
        }
        .content-body h3 {
            font-size: 1.14rem;
            font-weight: 700;
            color: var(--primary);
            margin: 1.8rem 0 0.7rem;
        }
        .content-body p {
            margin-bottom: 1.15rem;
        }
        .content-body ul,
        .content-body ol {
            margin: 0 0 1.2rem 1.2rem;
            padding: 0;
        }
        .content-body ul li,
        .content-body ol li {
            margin-bottom: 0.5rem;
        }
        .content-body blockquote {
            border-left: 4px solid var(--accent);
            background: rgba(212, 168, 83, 0.06);
            padding: 16px 22px;
            margin: 1.4rem 0;
            border-radius: 8px;
            color: #555;
            font-style: italic;
        }
        .content-body img {
            border-radius: 12px;
            margin: 1.4rem 0;
        }
        .content-body a {
            color: var(--accent-dark);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .content-empty {
            text-align: center;
            padding: 60px 30px;
        }
        .content-empty .empty-icon {
            font-size: 3.2rem;
            color: var(--accent);
            margin-bottom: 20px;
        }
        .content-empty h3 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .content-empty p {
            color: var(--text-light);
            margin-bottom: 26px;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
            color: #14142a;
            font-weight: 700;
            font-size: 0.94rem;
            padding: 12px 28px;
            border-radius: 999px;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 6px 18px rgba(212, 168, 83, 0.28);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(212, 168, 83, 0.4);
            color: #14142a;
        }

        /* Sidebar Widgets */
        .widget-card {
            background: var(--card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            padding: 26px 24px;
        }
        .widget-title {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.02rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 18px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border);
        }
        .widget-title i {
            color: var(--accent);
        }
        .widget-info-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .widget-info-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.9rem;
        }
        .widget-info-item .label {
            color: var(--text-light);
        }
        .widget-info-item .value {
            font-weight: 600;
            color: var(--primary);
        }
        .widget-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 4px;
        }
        .widget-tags a {
            display: inline-block;
            font-size: 0.8rem;
            padding: 6px 14px;
            border-radius: 999px;
            background: rgba(212, 168, 83, 0.1);
            color: var(--text);
            border: 1px solid rgba(212, 168, 83, 0.2);
            transition: var(--transition);
            font-weight: 500;
        }
        .widget-tags a:hover {
            background: rgba(212, 168, 83, 0.22);
            border-color: var(--accent);
            color: var(--primary);
        }
        .widget-feature-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .widget-feature {
            display: flex;
            gap: 12px;
            align-items: flex-start;
        }
        .widget-feature i {
            font-size: 1.1rem;
            color: var(--accent);
            background: rgba(212, 168, 83, 0.12);
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .widget-feature .feature-text {
            font-size: 0.88rem;
            color: var(--text);
            line-height: 1.5;
        }
        .widget-feature .feature-text strong {
            display: block;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 2px;
        }
        .widget-category-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .widget-category-list a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            border-radius: 12px;
            background: rgba(20, 20, 42, 0.03);
            border: 1px solid var(--border);
            font-size: 0.92rem;
            font-weight: 600;
            color: var(--text);
            transition: var(--transition);
        }
        .widget-category-list a i {
            color: var(--accent);
            width: 20px;
            text-align: center;
        }
        .widget-category-list a:hover {
            background: rgba(212, 168, 83, 0.1);
            border-color: rgba(212, 168, 83, 0.4);
            transform: translateX(4px);
        }

        /* ===== Related Section ===== */
        .related-section {
            padding: 56px 0 30px;
        }
        .section-head {
            text-align: center;
            margin-bottom: 42px;
        }
        .section-head h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .section-head p {
            color: var(--text-light);
            font-size: 0.98rem;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: var(--card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
            box-shadow: var(--shadow);
            display: flex;
            flex-direction: column;
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(212, 168, 83, 0.35);
        }
        .related-card .card-img {
            position: relative;
            height: 190px;
            overflow: hidden;
        }
        .related-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .related-card:hover .card-img img {
            transform: scale(1.05);
        }
        .related-card .card-img::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(20, 20, 42, 0.18) 0%, transparent 60%);
        }
        .related-card .card-body {
            padding: 22px 24px 26px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-tag {
            display: inline-flex;
            align-self: flex-start;
            align-items: center;
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--accent-dark);
            background: rgba(212, 168, 83, 0.14);
            padding: 4px 14px;
            border-radius: 999px;
            margin-bottom: 12px;
            letter-spacing: 0.04em;
        }
        .related-card .card-body h3 {
            font-size: 1.04rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.45;
            margin-bottom: 8px;
        }
        .related-card .card-body p {
            font-size: 0.88rem;
            color: var(--text-light);
            line-height: 1.6;
            flex: 1;
        }
        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--accent-dark);
            margin-top: 14px;
        }
        .card-link i {
            font-size: 0.75rem;
            transition: transform 0.3s;
        }
        .card-link:hover i {
            transform: translateX(4px);
        }

        /* ===== Category CTA ===== */
        .category-cta-section {
            padding: 48px 0 30px;
        }
        .category-cta-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .category-cta-card {
            position: relative;
            border-radius: var(--radius);
            padding: 36px 34px;
            color: #fff;
            overflow: hidden;
            min-height: 220px;
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            transition: var(--transition);
            border: none;
        }
        .category-cta-card .cta-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            z-index: 0;
            transition: transform 0.45s ease;
        }
        .category-cta-card:hover .cta-bg {
            transform: scale(1.04);
        }
        .category-cta-card .cta-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(20, 20, 42, 0.05) 0%, rgba(20, 20, 42, 0.72) 80%);
            z-index: 1;
        }
        .category-cta-card .cta-content {
            position: relative;
            z-index: 2;
        }
        .category-cta-card h3 {
            font-size: 1.4rem;
            font-weight: 800;
            margin-bottom: 8px;
        }
        .category-cta-card p {
            font-size: 0.92rem;
            color: rgba(255, 255, 255, 0.82);
            margin-bottom: 18px;
            max-width: 360px;
        }
        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--accent);
            color: #14142a;
            font-weight: 700;
            font-size: 0.88rem;
            padding: 10px 24px;
            border-radius: 999px;
            transition: var(--transition);
            align-self: flex-start;
        }
        .cta-btn:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            color: #14142a;
            box-shadow: 0 8px 20px rgba(212, 168, 83, 0.34);
        }

        /* ===== FAQ Section ===== */
        .faq-section {
            padding: 50px 0 30px;
        }
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .faq-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 14px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(212, 168, 83, 0.35);
            box-shadow: 0 4px 16px rgba(20, 20, 42, 0.05);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 18px 24px;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.96rem;
            color: var(--primary);
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            font-family: var(--font-main);
        }
        .faq-question .faq-icon {
            color: var(--accent);
            font-size: 0.82rem;
            transition: transform 0.3s;
            flex-shrink: 0;
        }
        .faq-item.active .faq-question .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
            padding: 0 24px;
            color: var(--text-light);
            font-size: 0.92rem;
            line-height: 1.7;
        }
        .faq-item.active .faq-answer {
            max-height: 320px;
            padding-bottom: 22px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.72);
            padding: 60px 0 0;
            margin-top: 48px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-logo {
            font-size: 1.35rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-links h4,
        .footer-contact h4 {
            font-size: 0.98rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
        }
        .footer-links a {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            padding: 5px 0;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent-light);
            padding-left: 4px;
        }
        .footer-contact p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 5px 0;
        }
        .footer-contact i {
            color: var(--accent);
            width: 16px;
            text-align: center;
        }
        .footer-bottom {
            padding: 22px 0 30px;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .article-layout {
                flex-direction: column;
            }
            .article-sidebar-col {
                flex: 1 1 100%;
                max-width: 100%;
                position: static;
            }
            .related-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                height: 64px;
            }
            .main-nav {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                flex-direction: column;
                background: #fff;
                padding: 18px 24px 24px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 16px 40px rgba(20, 20, 42, 0.1);
                gap: 8px;
                transform: translateY(-16px);
                opacity: 0;
                visibility: hidden;
                transition: all 0.3s ease;
            }
            .main-nav.open {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            .nav-link {
                width: 100%;
                text-align: center;
                padding: 12px;
                border-radius: 10px;
            }
            .nav-toggle {
                display: block;
            }
            .btn-header {
                display: none;
            }
            .article-hero {
                padding: 64px 0 52px;
            }
            .article-card {
                padding: 30px 24px;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .category-cta-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 26px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .brand-logo {
                font-size: 1.15rem;
            }
            .article-title {
                font-size: 1.65rem;
            }
            .article-meta-row {
                flex-direction: column;
                gap: 8px;
                align-items: center;
            }
            .article-card {
                padding: 24px 18px;
            }
            .content-body {
                font-size: 0.98rem;
            }
            .category-cta-card {
                padding: 26px 22px;
                min-height: 190px;
            }
            .footer-grid {
                gap: 22px;
            }
        }

/* roulang page: category1 */
/* ========== 1. Design Tokens ========== */
:root{
  --primary:#275EF2;
  --primary-dark:#1749CF;
  --primary-light:#EAF0FF;
  --secondary:#00D9A5;
  --secondary-dark:#00B98B;
  --accent:#FFB020;
  --dark:#0A1730;
  --dark-2:#101F42;
  --dark-3:#1B2D57;
  --text:#17233F;
  --text-sub:#5A6B8A;
  --text-light:#92A4BC;
  --border:#E5ECF8;
  --bg:#F4F7FD;
  --white:#fff;
  --radius-lg:22px;
  --radius-md:14px;
  --radius-sm:8px;
  --shadow-sm:0 4px 16px rgba(16,33,70,.06);
  --shadow-md:0 12px 32px rgba(16,33,70,.11);
  --shadow-lg:0 22px 50px rgba(16,33,70,.18);
  --transition:all .3s cubic-bezier(.25,.8,.35,1);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}

/* ========== 2. Reset & Base ========== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  color:var(--text);
  background:var(--white);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{text-decoration:none;color:inherit;transition:var(--transition)}
ul,ol{list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
button{border:none;background:none;cursor:pointer}
i,em{font-style:italic}
h1,h2,h3,h4,h5,h6{line-height:1.25;font-weight:700;color:var(--text)}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* ========== 3. Buttons ========== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 30px;border-radius:50px;font-weight:600;font-size:15px;
  letter-spacing:.02em;box-shadow:var(--shadow-sm);
  transition:var(--transition);cursor:pointer;white-space:nowrap;
  border:2px solid transparent;
}
.btn i{font-size:14px}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 26px rgba(39,94,242,.28)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-3px);box-shadow:0 16px 34px rgba(39,94,242,.36)}
.btn-primary:active{transform:translateY(-1px);box-shadow:0 8px 20px rgba(39,94,242,.3)}
.btn-primary:focus-visible{outline:3px solid rgba(39,94,242,.4);outline-offset:2px}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.4);backdrop-filter:blur(6px)}
.btn-ghost:hover{background:rgba(255,255,255,.22);border-color:#fff;transform:translateY(-3px)}
.btn-white{background:#fff;color:var(--primary-dark);font-weight:700}
.btn-white:hover{background:var(--primary-light);transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.7)}
.btn-outline:hover{background:rgba(255,255,255,.14);border-color:#fff;transform:translateY(-3px)}

/* ========== 4. Section & Headings ========== */
.section{padding:96px 0}
.section--alt{background:var(--bg)}
.section--white{background:#fff}
.section-head{max-width:720px;margin:0 auto 56px;text-align:center}
.section-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  color:var(--primary);background:var(--primary-light);
  padding:7px 18px;border-radius:50px;margin-bottom:16px;
}
.section-tag i{font-size:13px}
.section-head h2{font-size:38px;margin-bottom:14px;letter-spacing:-.01em}
.section-head h2 span{color:var(--primary)}
.section-head p{font-size:17px;color:var(--text-sub);line-height:1.7}

/* ========== 5. Header/Nav ========== */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(255,255,255,.88);
  backdrop-filter:saturate(180%) blur(18px);
  border-bottom:1px solid rgba(229,236,248,.8);
  box-shadow:0 4px 20px rgba(16,33,70,.04);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:72px;gap:16px;
}
.site-logo{
  display:inline-flex;align-items:center;gap:10px;
  font-size:22px;font-weight:800;color:var(--dark);letter-spacing:.01em;
}
.logo-mark{
  width:38px;height:38px;border-radius:10px;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  display:inline-flex;align-items:center;justify-content:center;
  color:#fff;font-size:17px;
  box-shadow:0 6px 18px rgba(39,94,242,.3);
}
.main-nav{display:flex;align-items:center;gap:8px;margin-left:auto}
.nav-link{
  display:inline-block;padding:9px 18px;border-radius:50px;
  font-size:15px;font-weight:500;color:var(--text-sub);
  transition:var(--transition);
}
.nav-link:hover{color:var(--primary);background:var(--primary-light)}
.nav-link:focus-visible{outline:3px solid rgba(39,94,242,.35);outline-offset:1px}
.nav-link.active{color:var(--primary);background:var(--primary-light);font-weight:600}
.mobile-toggle{display:none;width:42px;height:42px;border-radius:10px;align-items:center;justify-content:center;font-size:19px;color:var(--dark);background:var(--primary-light);transition:var(--transition)}
.mobile-toggle:hover{background:var(--primary);color:#fff}

/* ========== 6. Hero ========== */
.page-hero{
  position:relative;min-height:620px;display:flex;align-items:center;
  background-color:var(--dark);overflow:hidden;
}
.hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  transform:scale(1.05);animation:heroZoom 14s ease-out forwards;
}
.hero-overlay{
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(10,23,48,.95) 0%,rgba(10,23,48,.82) 42%,rgba(10,23,48,.55) 100%);
}
@keyframes heroZoom{from{transform:scale(1.12)}to{transform:scale(1.05)}}
.hero-content{position:relative;z-index:2;padding:88px 0}
.hero-badge{
  display:inline-flex;align-items:center;gap:9px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);
  color:#fff;font-size:14px;font-weight:600;letter-spacing:.06em;
  padding:8px 20px;border-radius:50px;margin-bottom:22px;
  backdrop-filter:blur(6px);box-shadow:0 4px 14px rgba(0,0,0,.12);
}
.hero-badge i{color:var(--secondary)}
.page-hero h1{
  color:#fff;font-size:50px;font-weight:800;line-height:1.18;
  margin-bottom:16px;letter-spacing:-.02em;
}
.page-hero h1 span{color:var(--secondary);display:block;margin-top:4px}
.hero-text{
  color:rgba(255,255,255,.8);font-size:17px;max-width:560px;
  margin-bottom:34px;line-height:1.8;
}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-card{
  background:linear-gradient(150deg,rgba(255,255,255,.14),rgba(255,255,255,.05));
  border:1px solid rgba(255,255,255,.16);
  border-radius:var(--radius-lg);
  padding:34px 30px;color:#fff;backdrop-filter:blur(10px);
  box-shadow:0 24px 50px rgba(0,0,0,.25);
  transform:translateY(12px);
}
.hero-card h3{color:#fff;font-size:18px;margin-bottom:18px;display:flex;align-items:center;gap:8px}
.hero-card h3 i{color:var(--secondary)}
.hero-card-list{display:flex;flex-direction:column;gap:16px}
.hero-card-list li{display:flex;align-items:center;gap:12px;font-size:14px;color:rgba(255,255,255,.85)}
.hero-card-list li .hc-dot{width:34px;height:34px;border-radius:50%;flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;background:rgba(255,255,255,.12);color:var(--secondary);font-size:13px;font-weight:700}

/* ========== 7. Features ========== */
.feature-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:34px 28px;height:100%;
  transition:var(--transition);position:relative;overflow:hidden;
}
.feature-card::before{
  content:'';position:absolute;inset:auto 0 0 0;height:4px;
  background:linear-gradient(90deg,var(--primary),var(--secondary));
  opacity:0;transition:var(--transition);
}
.feature-card:hover::before{opacity:1}
.feature-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-md);border-color:transparent}
.feature-icon{
  width:58px;height:58px;border-radius:16px;display:inline-flex;align-items:center;justify-content:center;
  font-size:24px;margin-bottom:22px;color:#fff;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  box-shadow:0 10px 24px rgba(39,94,242,.24);
}
.feature-card:nth-child(2) .feature-icon{background:linear-gradient(135deg,var(--secondary),#00A37F);box-shadow:0 10px 24px rgba(0,217,165,.24)}
.feature-card:nth-child(3) .feature-icon{background:linear-gradient(135deg,var(--accent),#F58A00);box-shadow:0 10px 24px rgba(255,176,32,.24)}
.feature-card:nth-child(4) .feature-icon{background:linear-gradient(135deg,#8B5CF6,#6D28D9);box-shadow:0 10px 24px rgba(139,92,246,.24)}
.feature-card h3{font-size:18px;margin-bottom:10px}
.feature-card p{font-size:14px;color:var(--text-sub);line-height:1.7}

/* ========== 8. Steps ========== */
.steps-wrap{
  display:flex;justify-content:center;gap:30px;
  counter-reset:step;
}
.step-item{
  flex:1;max-width:260px;text-align:center;position:relative;
  padding:44px 20px 34px;background:#fff;border-radius:var(--radius-lg);
  border:1px solid var(--border);box-shadow:var(--shadow-sm);
  transition:var(--transition);
}
.step-item:hover{transform:translateY(-8px);box-shadow:var(--shadow-md)}
.step-item::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  position:absolute;top:-14px;left:50%;transform:translateX(-50%);
  background:var(--dark);color:var(--secondary);font-size:14px;font-weight:800;
  letter-spacing:.08em;padding:6px 14px;border-radius:50px;
}
.step-icon{
  width:60px;height:60px;margin:0 auto 18px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary-light);color:var(--primary);font-size:24px;
}
.step-item:nth-child(2) .step-icon{background:rgba(0,217,165,.12);color:var(--secondary-dark)}
.step-item:nth-child(3) .step-icon{background:rgba(255,176,32,.14);color:#D98200}
.step-item:nth-child(4) .step-icon{background:rgba(139,92,246,.12);color:#6D28D9}
.step-item h3{font-size:17px;margin-bottom:8px}
.step-item p{font-size:14px;color:var(--text-sub);line-height:1.65}

/* ========== 9. Guide Cards ========== */
.guide-card{
  display:block;background:#fff;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--border);transition:var(--transition);
  height:100%;
}
.guide-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-md);border-color:transparent}
.guide-media{position:relative;overflow:hidden;aspect-ratio:4/3}
.guide-media img{width:100%;height:100%;object-fit:cover;transition:transform .55s ease}
.guide-card:hover .guide-media img{transform:scale(1.07)}
.guide-media::after{
  content:'';position:absolute;inset:auto 0 0 0;height:40%;
  background:linear-gradient(to top,rgba(10,23,48,.35),transparent);
}
.guide-tag{
  position:absolute;top:16px;left:16px;z-index:2;
  background:rgba(255,255,255,.92);backdrop-filter:blur(4px);
  color:var(--primary);font-size:12px;font-weight:700;
  padding:5px 14px;border-radius:50px;letter-spacing:.04em;
}
.guide-body{padding:26px 24px 28px}
.guide-body h3{font-size:18px;margin-bottom:10px;transition:var(--transition)}
.guide-card:hover .guide-body h3{color:var(--primary)}
.guide-body p{font-size:14px;color:var(--text-sub);line-height:1.7;margin-bottom:18px}
.guide-more{
  display:inline-flex;align-items:center;gap:7px;
  font-size:14px;font-weight:600;color:var(--primary);
}
.guide-more i{font-size:12px;transition:transform .3s}
.guide-card:hover .guide-more i{transform:translateX(5px)}

/* ========== 10. About / Image-Text ========== */
.about-media{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow-lg);margin-bottom:14px;
}
.about-media img{width:100%;height:100%;object-fit:cover;min-height:340px}
.about-media::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(39,94,242,.14),rgba(0,217,165,.06));
}
.about-exp{
  position:absolute;bottom:26px;left:26px;z-index:2;
  background:rgba(10,23,48,.82);backdrop-filter:blur(8px);
  color:#fff;padding:18px 26px;border-radius:16px;
  display:flex;align-items:center;gap:16px;
}
.about-exp .exp-num{font-size:34px;font-weight:800;color:var(--secondary)}
.about-exp .exp-label{font-size:13px;color:rgba(255,255,255,.75);line-height:1.4}
.about-content{padding-left:10px}
.about-content .section-tag{margin-bottom:14px}
.about-content h2{font-size:34px;line-height:1.3;margin-bottom:18px}
.about-content h2 span{color:var(--primary)}
.about-content > p{font-size:16px;color:var(--text-sub);margin-bottom:24px;line-height:1.8}
.about-lists{display:flex;flex-direction:column;gap:14px;margin-bottom:30px}
.about-lists li{
  display:flex;align-items:center;gap:12px;font-size:15px;font-weight:500;color:var(--text);
  padding:12px 18px;background:var(--primary-light);border-radius:12px;
}
.about-lists li i{color:var(--primary);font-size:15px;width:22px;text-align:center}
.about-lists li:nth-child(2){background:rgba(0,217,165,.1)}
.about-lists li:nth-child(2) i{color:var(--secondary-dark)}
.about-lists li:nth-child(3){background:rgba(255,176,32,.1)}
.about-lists li:nth-child(3) i{color:#D98200}

/* ========== 11. Stats ========== */
.stats-section{
  position:relative;background:var(--dark);overflow:hidden;padding:88px 0;
}
.stats-section::before{
  content:'';position:absolute;width:520px;height:520px;border-radius:50%;
  background:rgba(39,94,242,.18);filter:blur(100px);top:-160px;right:-100px;
}
.stats-section::after{
  content:'';position:absolute;width:380px;height:380px;border-radius:50%;
  background:rgba(0,217,165,.14);filter:blur(90px);bottom:-120px;left:-80px;
}
.stats-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:repeat(4,1fr);gap:36px;
}
.stat-item{
  text-align:center;padding:30px 18px;border-radius:var(--radius-lg);
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
  backdrop-filter:blur(6px);transition:var(--transition);
}
.stat-item:hover{background:rgba(255,255,255,.11);transform:translateY(-6px)}
.stat-num{
  font-size:46px;font-weight:800;color:#fff;line-height:1.1;
  display:block;margin-bottom:6px;letter-spacing:-.02em;
}
.stat-num em{font-style:normal;color:var(--secondary)}
.stat-label{font-size:15px;color:rgba(255,255,255,.68)}

/* ========== 12. FAQ ========== */
.faq-wrap{max-width:840px;margin:0 auto}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-md);
  margin-bottom:16px;overflow:hidden;transition:var(--transition);
}
.faq-item:hover{border-color:var(--primary);box-shadow:var(--shadow-sm)}
.faq-item.is-active{border-color:var(--primary);box-shadow:var(--shadow-md)}
.faq-question{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 26px;text-align:left;font-size:16px;font-weight:600;color:var(--text);
  transition:var(--transition);
}
.faq-question i{
  width:30px;height:30px;flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;
  border-radius:50%;background:var(--primary-light);color:var(--primary);
  transition:transform .35s ease,background .3s,color .3s;
}
.faq-item.is-active .faq-question i{transform:rotate(180deg);background:var(--primary);color:#fff}
.faq-answer{display:none;padding:0 26px 22px;font-size:15px;color:var(--text-sub);line-height:1.75}
.faq-item.is-active .faq-answer{display:block}

/* ========== 13. CTA ========== */
.cta-section{padding:90px 0}
.cta-box{
  position:relative;background:linear-gradient(120deg,#0A1730,#142B5E);
  border-radius:var(--radius-lg);padding:70px 64px;overflow:hidden;
  text-align:center;box-shadow:var(--shadow-lg);
}
.cta-box::before{
  content:'';position:absolute;width:420px;height:420px;border-radius:50%;
  background:rgba(39,94,242,.25);filter:blur(90px);top:-140px;right:-80px;
}
.cta-box::after{
  content:'';position:absolute;width:320px;height:320px;border-radius:50%;
  background:rgba(0,217,165,.18);filter:blur(80px);bottom:-130px;left:-70px;
}
.cta-box h2{
  color:#fff;font-size:34px;margin-bottom:14px;position:relative;z-index:2;
}
.cta-box h2 span{color:var(--secondary)}
.cta-box p{color:rgba(255,255,255,.7);font-size:16px;max-width:560px;margin:0 auto 32px;position:relative;z-index:2}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;position:relative;z-index:2}

/* ========== 14. Footer ========== */
.site-footer{
  background:var(--dark);color:rgba(255,255,255,.66);
  padding:72px 0 0;position:relative;overflow:hidden;
}
.site-footer::before{
  content:'';position:absolute;width:300px;height:300px;border-radius:50%;
  background:rgba(39,94,242,.14);filter:blur(80px);top:-100px;left:-60px;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:44px;
  position:relative;z-index:2;padding-bottom:54px;
}
.footer-logo{font-size:24px;font-weight:800;color:#fff;margin-bottom:16px;display:inline-flex;align-items:center;gap:10px}
.footer-logo i{color:var(--secondary)}
.footer-brand p{font-size:14px;line-height:1.8;max-width:300px}
.footer-links h4,.footer-contact h4{color:#fff;font-size:16px;margin-bottom:18px;font-weight:600}
.footer-links a{
  display:block;font-size:14px;color:rgba(255,255,255,.6);
  margin-bottom:12px;transition:var(--transition);
}
.footer-links a:hover{color:var(--secondary);transform:translateX(4px)}
.footer-contact p{font-size:14px;margin-bottom:12px;display:flex;align-items:center;gap:10px}
.footer-contact p i{width:30px;height:30px;border-radius:50%;background:rgba(255,255,255,.08);display:inline-flex;align-items:center;justify-content:center;color:var(--secondary);font-size:13px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:22px 0;
  font-size:14px;color:rgba(255,255,255,.45);text-align:center;
  position:relative;z-index:2;
}

/* ========== 15. Responsive ========== */
@media screen and (max-width:1024px){
  .section{padding:76px 0}
  .page-hero{min-height:540px}
  .page-hero h1{font-size:42px}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:22px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px 30px}
  .about-content h2{font-size:28px}
}

@media screen and (max-width:768px){
  .section{padding:60px 0}
  .section-head h2{font-size:30px}
  .header-inner{height:64px}
  .site-logo{font-size:19px}
  .logo-mark{width:34px;height:34px;font-size:15px}
  .main-nav{
    position:fixed;top:64px;left:0;right:0;bottom:0;
    background:rgba(255,255,255,.98);backdrop-filter:blur(18px);
    flex-direction:column;align-items:stretch;justify-content:flex-start;
    padding:28px 24px;gap:8px;transform:translateX(100%);
    transition:transform .35s cubic-bezier(.25,.8,.35,1);
    box-shadow:-10px 0 40px rgba(10,23,48,.12);
    overflow-y:auto;z-index:999;
  }
  .main-nav.is-open{transform:translateX(0)}
  .nav-link{padding:15px 20px;font-size:17px;border-radius:14px;text-align:center}
  .mobile-toggle{display:inline-flex;margin-left:auto}
  .page-hero{min-height:520px}
  .page-hero h1{font-size:36px}
  .hero-text{font-size:16px}
  .hero-card{margin-top:40px;transform:none}
  .steps-wrap{flex-direction:column;align-items:center;gap:24px}
  .step-item{max-width:100%;width:100%}
  .stat-num{font-size:40px}
  .cta-box{padding:48px 26px}
  .cta-box h2{font-size:28px}
  .footer-bottom{text-align:center}
  .about-content{padding-left:0;margin-top:36px}
  .about-media img{min-height:280px}
}

@media screen and (max-width:520px){
  .section{padding:48px 0}
  .section-head{margin-bottom:38px}
  .section-head h2{font-size:26px}
  .section-head p{font-size:15px}
  .hero-content{padding:56px 0}
  .page-hero{min-height:480px}
  .page-hero h1{font-size:30px}
  .hero-badge{font-size:12px;padding:6px 14px}
  .hero-actions .btn{width:100%;justify-content:center}
  .feature-card{padding:28px 20px}
  .stats-grid{grid-template-columns:1fr 1fr;gap:14px}
  .stat-item{padding:24px 12px}
  .stat-num{font-size:34px}
  .stat-label{font-size:13px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .cta-actions .btn{width:100%;justify-content:center}
  .cta-box{padding:42px 20px}
  .cta-box h2{font-size:24px}
}

/* Accessibility */
:focus-visible{outline:3px solid rgba(39,94,242,.5);outline-offset:2px}
::selection{background:var(--primary);color:#fff}

/* roulang page: category2 */
:root {
            --primary: #1859e9;
            --primary-dark: #1040b8;
            --primary-light: #eaf0fe;
            --accent: #f5a623;
            --accent-light: #fef3e2;
            --dark: #0b1530;
            --dark-2: #111e3d;
            --bg: #f6f8fc;
            --card: #ffffff;
            --text: #101828;
            --text-light: #5a6b85;
            --border: #e3e8f0;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 8px 30px rgba(20, 40, 80, 0.07);
            --shadow-hover: 0 16px 40px rgba(20, 40, 80, 0.12);
            --transition: all 0.3s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

        a {
            text-decoration: none;
            color: var(--primary);
            transition: var(--transition);
        }

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

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

        ul, ol {
            list-style-position: inside;
        }

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

        /* ===== Header / Navigation ===== */
        .site-header {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
            padding: 14px 0;
            transition: var(--transition);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }

        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--primary) 0%, #3b7bff 100%);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 20px;
            font-weight: 800;
            box-shadow: 0 4px 14px rgba(24, 89, 233, 0.28);
        }

        .logo-text {
            font-size: 20px;
            font-weight: 800;
            color: var(--text);
            letter-spacing: 1px;
            white-space: nowrap;
        }

        .logo-text span {
            color: var(--primary);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .nav-link {
            display: inline-block;
            padding: 10px 18px;
            border-radius: 50px;
            color: var(--text-light);
            font-weight: 600;
            font-size: 15px;
            transition: var(--transition);
        }

        .nav-link:hover {
            color: var(--primary);
            background: var(--primary-light);
        }

        .nav-link.active {
            color: #fff;
            background: var(--primary);
            box-shadow: 0 4px 14px rgba(24, 89, 233, 0.3);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .search-box {
            position: relative;
        }

        .search-box input {
            border: 1px solid var(--border);
            border-radius: 50px;
            padding: 10px 18px 10px 42px;
            font-size: 14px;
            width: 220px;
            background: var(--bg);
            transition: var(--transition);
            outline: none;
        }

        .search-box input:focus {
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(24, 89, 233, 0.12);
            width: 250px;
        }

        .search-box i {
            position: absolute;
            left: 16px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-light);
            font-size: 14px;
            pointer-events: none;
        }

        .header-cta {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 10px 22px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 14px;
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
            white-space: nowrap;
        }

        .header-cta:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(24, 89, 233, 0.3);
            color: #fff;
        }

        .menu-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--border);
            border-radius: 10px;
            width: 44px;
            height: 44px;
            font-size: 18px;
            color: var(--text);
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }

        .menu-toggle:hover {
            background: var(--bg);
            border-color: var(--primary);
            color: var(--primary);
        }

        /* ===== Page Banner ===== */
        .page-banner {
            position: relative;
            background: linear-gradient(135deg, #0b1530 0%, #16284a 60%, #1d3560 100%);
            padding: 90px 0 80px;
            overflow: hidden;
        }

        .page-banner::before {
            content: "";
            position: absolute;
            top: -30%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(24, 89, 233, 0.35) 0%, transparent 70%);
            border-radius: 50%;
        }

        .page-banner::after {
            content: "";
            position: absolute;
            bottom: -40%;
            left: -5%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(245, 166, 35, 0.18) 0%, transparent 70%);
            border-radius: 50%;
        }

        .page-banner .container-custom {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            gap: 60px;
        }

        .banner-content {
            flex: 1;
        }

        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: #e8edf5;
            padding: 8px 18px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 24px;
            backdrop-filter: blur(4px);
        }

        .banner-badge i {
            color: var(--accent);
        }

        .banner-title {
            font-size: 44px;
            font-weight: 800;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 18px;
            letter-spacing: 1px;
        }

        .banner-title span {
            color: var(--accent);
        }

        .banner-desc {
            color: rgba(255, 255, 255, 0.75);
            font-size: 17px;
            max-width: 540px;
            margin-bottom: 32px;
            line-height: 1.8;
        }

        .banner-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-primary-custom {
            background: var(--primary);
            color: #fff;
            padding: 13px 30px;
            border-radius: 50px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
            font-size: 15px;
        }

        .btn-primary-custom:hover {
            background: var(--primary-dark);
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(24, 89, 233, 0.35);
            color: #fff;
        }

        .btn-outline-custom {
            background: transparent;
            color: #fff;
            padding: 13px 30px;
            border-radius: 50px;
            font-weight: 600;
            border: 1.5px solid rgba(255, 255, 255, 0.4);
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
            font-size: 15px;
        }

        .btn-outline-custom:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
            transform: translateY(-3px);
        }

        .banner-visual {
            flex-shrink: 0;
            width: 320px;
            display: flex;
            gap: 14px;
        }

        .visual-card-stack {
            display: flex;
            flex-direction: column;
            gap: 14px;
            flex: 1;
        }

        .mini-card {
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius);
            padding: 18px;
            backdrop-filter: blur(8px);
        }

        .mini-card .mini-num {
            font-size: 28px;
            font-weight: 800;
            color: var(--accent);
        }

        .mini-card .mini-label {
            color: rgba(255, 255, 255, 0.7);
            font-size: 13px;
        }

        .mini-card.primary {
            background: rgba(24, 89, 233, 0.3);
            border-color: rgba(24, 89, 233, 0.4);
        }

        .banner-highlight {
            margin-top: 36px;
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
        }

        .highlight-item {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .highlight-item .num {
            font-size: 30px;
            font-weight: 800;
            color: #fff;
        }

        .highlight-item .num span {
            color: var(--accent);
            font-size: 22px;
        }

        .highlight-item .label {
            color: rgba(255, 255, 255, 0.5);
            font-size: 13px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        /* ===== Section Common ===== */
        .section-block {
            padding: 80px 0;
        }

        .section-header {
            margin-bottom: 48px;
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            flex-wrap: wrap;
            gap: 20px;
        }

        .section-title-wrap {
            max-width: 560px;
        }

        .section-tagline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
            margin-bottom: 12px;
            background: var(--primary-light);
            padding: 6px 16px;
            border-radius: 50px;
        }

        .section-title {
            font-size: 32px;
            font-weight: 800;
            color: var(--text);
            line-height: 1.3;
            margin-bottom: 10px;
        }

        .section-desc {
            color: var(--text-light);
            font-size: 15px;
            line-height: 1.8;
        }

        .section-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
            transition: var(--transition);
        }

        .section-link:hover {
            gap: 14px;
            color: var(--primary-dark);
        }

        /* ===== Guide Cards ===== */
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .guide-card {
            background: var(--card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 28px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .guide-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--primary);
            border-radius: 0 4px 4px 0;
            opacity: 0;
            transition: var(--transition);
        }

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

        .guide-card:hover::before {
            opacity: 1;
        }

        .guide-card .card-icon {
            width: 56px;
            height: 56px;
            background: var(--primary-light);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--primary);
            margin-bottom: 20px;
        }

        .guide-card h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .guide-card p {
            color: var(--text-light);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 0;
        }

        .guide-card .card-tag {
            position: absolute;
            top: 20px;
            right: 20px;
            background: var(--accent-light);
            color: #b97e10;
            padding: 4px 12px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 600;
        }

        /* ===== Article List ===== */
        .article-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .article-item {
            display: flex;
            background: var(--card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
        }

        .article-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .article-thumb {
            width: 200px;
            flex-shrink: 0;
            overflow: hidden;
            position: relative;
        }

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

        .article-item:hover .article-thumb img {
            transform: scale(1.05);
        }

        .article-body {
            padding: 24px 28px;
            flex: 1;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 10px;
            flex-wrap: wrap;
        }

        .article-cat {
            background: var(--primary-light);
            color: var(--primary);
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 600;
        }

        .article-date {
            color: var(--text-light);
            font-size: 13px;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .article-body h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.5;
        }

        .article-body h3 a {
            color: var(--text);
        }

        .article-body h3 a:hover {
            color: var(--primary);
        }

        .article-body p {
            color: var(--text-light);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 12px;
        }

        .article-link {
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .article-link:hover {
            gap: 10px;
        }

        /* ===== Dark Stats ===== */
        .stats-section {
            background: linear-gradient(135deg, var(--dark) 0%, var(--dark-2) 100%);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }

        .stats-section::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('/assets/images/backpic/back-2.png') no-repeat center/cover;
            opacity: 0.08;
        }

        .stats-section .container-custom {
            position: relative;
            z-index: 2;
        }

        .stats-header {
            text-align: center;
            margin-bottom: 56px;
        }

        .stats-header .section-title {
            color: #fff;
        }

        .stats-header .section-desc {
            color: rgba(255, 255, 255, 0.6);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .stat-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius);
            padding: 32px 24px;
            text-align: center;
            transition: var(--transition);
            backdrop-filter: blur(4px);
        }

        .stat-card:hover {
            background: rgba(255, 255, 255, 0.12);
            transform: translateY(-6px);
            border-color: rgba(255, 255, 255, 0.25);
        }

        .stat-num {
            font-size: 44px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 8px;
        }

        .stat-num span {
            color: var(--accent);
        }

        .stat-label {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            margin-bottom: 12px;
        }

        .stat-trend {
            color: #34d399;
            font-size: 13px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            background: rgba(52, 211, 153, 0.15);
            border-radius: 50px;
        }

        /* ===== Topics Grid ===== */
        .topics-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .topic-card {
            background: var(--card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
        }

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

        .topic-img {
            height: 180px;
            overflow: hidden;
            position: relative;
        }

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

        .topic-card:hover .topic-img img {
            transform: scale(1.08);
        }

        .topic-img .topic-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(255, 255, 255, 0.92);
            color: var(--text);
            padding: 6px 14px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 600;
            backdrop-filter: blur(4px);
        }

        .topic-body {
            padding: 22px;
        }

        .topic-body h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .topic-body h3 a {
            color: var(--text);
        }

        .topic-body h3 a:hover {
            color: var(--primary);
        }

        .topic-body p {
            color: var(--text-light);
            font-size: 13px;
            line-height: 1.7;
            margin-bottom: 14px;
        }

        .topic-body .topic-count {
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        /* ===== Timeline / Steps ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }

        .steps-grid::before {
            content: "";
            position: absolute;
            top: 32px;
            left: 10%;
            right: 10%;
            height: 2px;
            background: linear-gradient(90deg, var(--primary) 0%, var(--border) 100%);
            z-index: 0;
        }

        .step-item {
            background: var(--card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 24px;
            position: relative;
            z-index: 1;
            transition: var(--transition);
        }

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

        .step-num {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            font-weight: 700;
            font-size: 18px;
            margin-bottom: 16px;
            box-shadow: 0 4px 14px rgba(24, 89, 233, 0.3);
        }

        .step-item h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .step-item p {
            color: var(--text-light);
            font-size: 13px;
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
        }

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

        .faq-item:hover {
            border-color: var(--primary);
            box-shadow: 0 4px 16px rgba(24, 89, 233, 0.08);
        }

        .faq-item summary {
            padding: 20px 24px;
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 14px;
            list-style: none;
            position: relative;
            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;
            margin-left: auto;
            transition: var(--transition);
            color: var(--text-light);
            font-size: 13px;
        }

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

        .faq-item[open] summary {
            color: var(--primary);
        }

        .faq-item .faq-icon {
            width: 28px;
            height: 28px;
            background: var(--primary-light);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            color: var(--primary);
            flex-shrink: 0;
        }

        .faq-item .faq-desc {
            padding: 0 24px 20px 66px;
            color: var(--text-light);
            font-size: 14px;
            line-height: 1.8;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            padding: 70px 0;
            background: linear-gradient(135deg, transparent 0%, transparent 100%);
        }

        .cta-box {
            background: linear-gradient(135deg, var(--primary) 0%, #3b7bff 50%, #5b92ff 100%);
            border-radius: 24px;
            padding: 56px 48px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
            position: relative;
            overflow: hidden;
            flex-wrap: wrap;
        }

        .cta-box::before {
            content: "";
            position: absolute;
            top: -60%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.15) 0%, transparent 70%);
            border-radius: 50%;
        }

        .cta-box .title {
            color: #fff;
            font-size: 28px;
            font-weight: 800;
            margin-bottom: 10px;
        }

        .cta-box .desc {
            color: rgba(255, 255, 255, 0.85);
            font-size: 15px;
            max-width: 420px;
        }

        .cta-box .btn-white {
            background: #fff;
            color: var(--primary);
            padding: 14px 36px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 15px;
            border: none;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
        }

        .cta-box .btn-white:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
            color: var(--primary);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.6);
            padding: 68px 0 0;
            border-top: 4px solid var(--primary);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 44px;
        }

        .footer-brand .footer-logo {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            max-width: 260px;
        }

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

        .footer-links a {
            display: block;
            color: rgba(255, 255, 255, 0.55);
            font-size: 14px;
            padding: 5px 0;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: var(--accent);
            padding-left: 6px;
        }

        .footer-contact p {
            color: rgba(255, 255, 255, 0.55);
            font-size: 14px;
            padding: 4px 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-contact p i {
            width: 20px;
            text-align: center;
            color: var(--accent);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 24px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.35);
        }

        /* ===== Mobile Responsive ===== */
        @media (max-width: 1024px) {
            .banner-title {
                font-size: 34px;
            }

            .page-banner .container-custom {
                flex-direction: column;
                gap: 40px;
            }

            .banner-visual {
                width: 100%;
                max-width: 400px;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .steps-grid::before {
                display: none;
            }

            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }
        }

        @media (max-width: 820px) {
            .search-box {
                display: none;
            }

            .header-cta span {
                display: none;
            }

            .header-cta {
                padding: 10px 14px;
            }

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

            .topics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .menu-toggle {
                display: flex;
            }

            .main-nav {
                position: fixed;
                top: 70px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 20px;
                gap: 10px;
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
                border-radius: 0 0 12px 12px;
                transform: translateY(-130%);
                transition: var(--transition);
                z-index: 99;
            }

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

            .main-nav .nav-link {
                width: 100%;
                text-align: center;
                padding: 14px;
            }

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

            .banner-desc {
                font-size: 15px;
            }

            .section-title {
                font-size: 24px;
            }

            .section-block {
                padding: 50px 0;
            }

            .article-item {
                flex-direction: column;
            }

            .article-thumb {
                width: 100%;
                height: 180px;
            }

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

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

            .steps-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .cta-box {
                padding: 36px 24px;
                text-align: center;
                justify-content: center;
            }

            .cta-box .btn-white {
                width: 100%;
                justify-content: center;
            }

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

            .page-banner {
                padding: 60px 0 50px;
            }

            .banner-highlight {
                gap: 20px;
            }

            .highlight-item .num {
                font-size: 24px;
            }

            .container-custom {
                padding: 0 18px;
            }

            .article-body {
                padding: 20px;
            }

            .faq-item .faq-desc {
                padding: 0 20px 18px 60px;
            }
        }

        @media (max-width: 520px) {
            .header-inner {
                gap: 12px;
            }

            .logo-text {
                font-size: 16px;
            }

            .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 17px;
            }

            .header-cta {
                display: none;
            }

            .banner-badge {
                font-size: 12px;
            }

            .banner-title {
                font-size: 24px;
            }

            .btn-primary-custom,
            .btn-outline-custom {
                width: 100%;
                justify-content: center;
            }

            .mini-card .mini-num {
                font-size: 22px;
            }
        }

        /* ===== Focus States ===== */
        a:focus-visible,
        button:focus-visible,
        summary:focus-visible,
        input:focus-visible {
            outline: 3px solid rgba(24, 89, 233, 0.4);
            outline-offset: 2px;
        }