/* roulang page: index */
:root{
    --primary:#0b1e4b;
    --primary-deep:#060f28;
    --primary-light:#1a3a6b;
    --accent:#f5a623;
    --accent-light:#ffc55c;
    --accent-dark:#d4880a;
    --bg-light:#f0f4fa;
    --bg-white:#ffffff;
    --text-dark:#13233d;
    --text-gray:#5b6b82;
    --text-light:#8a94a6;
    --border:#e2e8f0;
    --radius:16px;
    --radius-sm:8px;
    --shadow:0 8px 30px rgba(11,30,75,.08);
    --shadow-hover:0 14px 40px rgba(11,30,75,.14);
    --transition:.25s ease;
    --space-section:80px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;line-height:1.7;color:var(--text-dark);background:var(--bg-light);-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit;transition:color var(--transition)}
img{max-width:100%;display:block}
button,input{font-family:inherit;font-size:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 28px;border-radius:50px;font-weight:600;font-size:15px;border:none;cursor:pointer;transition:all var(--transition);line-height:1.4}
.btn-accent{background:var(--accent);color:#1a1a1a;box-shadow:0 4px 18px rgba(245,166,35,.35)}
.btn-accent:hover{background:var(--accent-light);transform:translateY(-2px);box-shadow:0 8px 24px rgba(245,166,35,.45)}
.btn-outline{background:transparent;color:#fff;border:2px solid rgba(255,255,255,.7)}
.btn-outline:hover{background:rgba(255,255,255,.15);transform:translateY(-2px);border-color:#fff}
.btn-outline-light{background:transparent;color:var(--primary);border:2px solid var(--primary);padding:10px 24px}
.btn-outline-light:hover{background:var(--primary);color:#fff}

.site-header{position:sticky;top:0;z-index:999;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);box-shadow:0 2px 16px rgba(11,30,75,.06)}
.header-top{border-bottom:1px solid var(--border)}
.header-flex{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{font-size:22px;font-weight:800;color:var(--primary);letter-spacing:.5px;white-space:nowrap;display:flex;align-items:center;gap:10px}
.brand i{color:var(--accent);font-size:26px}
.header-actions{display:flex;align-items:center;gap:16px}
.search-box{position:relative;display:flex;align-items:center}
.search-box input{width:230px;padding:9px 42px 9px 16px;border:1px solid var(--border);border-radius:50px;background:var(--bg-light);font-size:14px;outline:none;transition:all var(--transition)}
.search-box input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(245,166,35,.15);background:#fff}
.search-box button{position:absolute;right:4px;top:50%;transform:translateY(-50%);background:none;border:none;color:var(--text-gray);cursor:pointer;padding:8px;font-size:15px;transition:color var(--transition)}
.search-box button:hover{color:var(--accent)}
.nav-toggle{display:none;background:none;border:none;font-size:24px;color:var(--primary);cursor:pointer;padding:6px}

.header-nav{background:var(--primary);position:relative}
.header-nav .container{display:flex;align-items:center;gap:4px;overflow-x:auto;scrollbar-width:none}
.header-nav .container::-webkit-scrollbar{display:none}
.nav-link{display:flex;align-items:center;gap:8px;padding:14px 22px;color:rgba(255,255,255,.82);font-size:15px;font-weight:500;border-bottom:3px solid transparent;transition:all var(--transition);white-space:nowrap}
.nav-link i{font-size:14px;opacity:.7}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.07)}
.nav-link.active{color:#fff;border-bottom-color:var(--accent);background:rgba(245,166,35,.08)}

.hero{position:relative;min-height:520px;display:flex;align-items:center;color:#fff;overflow:hidden}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;z-index:0}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(6,15,40,.92) 0%,rgba(11,30,75,.78) 55%,rgba(26,58,107,.55) 100%);z-index:1}
.hero-content{position:relative;z-index:2;padding:80px 0 90px;max-width:780px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(245,166,35,.18);border:1px solid rgba(245,166,35,.45);color:var(--accent-light);padding:7px 18px;border-radius:50px;font-size:14px;font-weight:600;margin-bottom:22px}
.hero-badge i{font-size:14px}
.hero h1{font-size:48px;font-weight:900;line-height:1.2;letter-spacing:1px;margin-bottom:18px}
.hero h1 span{color:var(--accent)}
.hero-subtitle{font-size:18px;color:rgba(255,255,255,.85);max-width:600px;margin-bottom:34px}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:56px}
.hero-stats{display:flex;gap:48px;flex-wrap:wrap}
.stat-item{display:flex;flex-direction:column}
.stat-value{font-size:32px;font-weight:900;color:var(--accent);line-height:1.2}
.stat-value small{font-size:16px;font-weight:700}
.stat-label{font-size:14px;color:rgba(255,255,255,.7);margin-top:4px}

.section{padding:var(--space-section) 0}
.section-alt{background:var(--bg-white)}
.section-header{text-align:center;max-width:680px;margin:0 auto 48px}
.section-header .section-tag{display:inline-block;background:rgba(245,166,35,.12);color:var(--accent-dark);font-size:13px;font-weight:700;padding:5px 16px;border-radius:50px;margin-bottom:14px}
.section-header h2{font-size:36px;font-weight:800;line-height:1.25;margin-bottom:12px;color:var(--text-dark)}
.section-header p{color:var(--text-gray);font-size:16px}

.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feature-card{background:var(--bg-white);border:1px solid var(--border);border-radius:var(--radius);padding:32px 26px;transition:all var(--transition)}
.feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:rgba(245,166,35,.4)}
.feature-icon{width:56px;height:56px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:24px;color:var(--primary);background:rgba(11,30,75,.06);margin-bottom:20px;transition:all var(--transition)}
.feature-card:hover .feature-icon{background:var(--accent);color:#1a1a1a}
.feature-card h3{font-size:19px;font-weight:700;margin-bottom:10px}
.feature-card p{font-size:14px;color:var(--text-gray);line-height:1.65}

.category-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.category-card{background:var(--bg-white);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:all var(--transition);display:flex;flex-direction:column}
.category-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.category-img{position:relative;height:200px;overflow:hidden}
.category-img img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.category-card:hover .category-img img{transform:scale(1.05)}
.category-img .img-overlay{position:absolute;inset:0;background:linear-gradient(to top,rgba(6,15,40,.55),transparent)}
.category-body{padding:26px;flex:1;display:flex;flex-direction:column}
.category-body h3{font-size:20px;font-weight:700;margin-bottom:10px}
.category-body p{font-size:14px;color:var(--text-gray);flex:1;margin-bottom:18px}
.category-link{display:inline-flex;align-items:center;gap:8px;color:var(--primary);font-weight:600;font-size:15px;transition:gap var(--transition)}
.category-link:hover{gap:14px;color:var(--accent-dark)}

.info-section{background:var(--bg-white)}
.info-list{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.info-item{display:flex;flex-direction:column;padding:28px;background:var(--bg-light);border-radius:var(--radius);border:1px solid transparent;transition:all var(--transition)}
.info-item:hover{border-color:rgba(245,166,35,.4);background:#fff;box-shadow:var(--shadow)}
.info-meta{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.tag{display:inline-block;background:rgba(245,166,35,.14);color:var(--accent-dark);font-size:12px;font-weight:700;padding:3px 12px;border-radius:50px}
.info-meta time{font-size:13px;color:var(--text-light)}
.info-item h3{font-size:19px;font-weight:700;margin-bottom:8px;line-height:1.4}
.info-item h3 a:hover{color:var(--accent-dark)}
.info-item p{font-size:14px;color:var(--text-gray);margin-bottom:16px;flex:1}
.read-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary)}
.read-more:hover{color:var(--accent-dark);gap:10px}
.empty-tip{grid-column:1/-1;text-align:center;padding:40px;color:var(--text-gray);background:var(--bg-light);border-radius:var(--radius);font-size:16px}

.stats-section{background:var(--primary-deep);color:#fff;position:relative;overflow:hidden}
.stats-section::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at 70% 50%,rgba(245,166,35,.12),transparent 60%)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:36px;position:relative;z-index:1}
.stat-block{text-align:center;padding:30px 20px}
.stat-block .num{font-size:44px;font-weight:900;color:var(--accent);line-height:1.1;margin-bottom:8px}
.stat-block .num span{font-size:20px}
.stat-block .label{font-size:15px;color:rgba(255,255,255,.7)}

.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step-item{position:relative;background:var(--bg-white);border:1px solid var(--border);border-radius:var(--radius);padding:32px 24px;transition:all var(--transition)}
.step-item:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.step-num{position:absolute;top:20px;right:20px;font-size:42px;font-weight:900;color:rgba(11,30,75,.06);line-height:1}
.step-icon{width:52px;height:52px;border-radius:12px;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:18px}
.step-item h3{font-size:17px;font-weight:700;margin-bottom:8px}
.step-item p{font-size:14px;color:var(--text-gray);line-height:1.6}

.faq-list{max-width:820px;margin:0 auto}
.faq-item{background:var(--bg-white);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:16px;overflow:hidden;transition:box-shadow var(--transition)}
.faq-item:hover{box-shadow:var(--shadow)}
.faq-question{width:100%;text-align:left;background:none;border:none;padding:22px 26px;font-size:16px;font-weight:600;color:var(--text-dark);cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:14px}
.faq-question i{color:var(--accent);font-size:18px;transition:transform .3s ease;flex-shrink:0}
.faq-item.open .faq-question i{transform:rotate(45deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-answer .answer-inner{padding:0 26px 22px;color:var(--text-gray);font-size:15px;line-height:1.7;border-top:1px solid var(--border);padding-top:16px}

.cta-section{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-light) 100%);border-radius:24px;color:#fff;text-align:center;padding:64px 40px;position:relative;overflow:hidden}
.cta-section::before{content:'';position:absolute;top:-60px;right:-40px;width:240px;height:240px;background:rgba(245,166,35,.15);border-radius:50%}
.cta-section::after{content:'';position:absolute;bottom:-80px;left:-50px;width:200px;height:200px;background:rgba(255,255,255,.06);border-radius:50%}
.cta-content{position:relative;z-index:1}
.cta-title{font-size:32px;font-weight:800;margin-bottom:14px}
.cta-desc{color:rgba(255,255,255,.8);max-width:520px;margin:0 auto 28px;font-size:16px}
.cta-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

.site-footer{background:var(--primary-deep);color:rgba(255,255,255,.75);padding-top:60px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:48px;padding-bottom:40px}
.footer-brand .footer-logo{font-size:24px;font-weight:800;color:#fff;display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .footer-logo i{color:var(--accent)}
.footer-brand p{font-size:14px;line-height:1.7;max-width:320px}
.footer-links h4,.footer-notes h4{color:#fff;font-size:16px;font-weight:700;margin-bottom:18px}
.footer-links a{display:block;font-size:14px;padding:6px 0;color:rgba(255,255,255,.7);transition:all var(--transition)}
.footer-links a:hover{color:var(--accent);padding-left:6px}
.footer-notes p{font-size:14px;padding:4px 0}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:20px 0;text-align:center;font-size:13px;color:rgba(255,255,255,.5)}
.footer-bottom .container{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}

@media(max-width:1024px){
    .feature-grid{grid-template-columns:repeat(2,1fr)}
    .category-grid{grid-template-columns:repeat(2,1fr)}
    .info-list{grid-template-columns:1fr}
    .stats-grid{grid-template-columns:repeat(2,1fr)}
    .steps-grid{grid-template-columns:repeat(2,1fr)}
    .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
    :root{--space-section:56px}
    .header-flex{height:64px}
    .brand{font-size:18px}
    .search-box{display:none}
    .nav-toggle{display:block}
    .headers-cta{margin-top:20px}
    .hero{min-height:460px}
    .hero h1{font-size:34px}
    .hero-subtitle{font-size:16px}
    .hero-stats{gap:28px}
    .hero-content{padding:60px 0 70px}.stat-value{font-size:26px}
    .section-header h2{font-size:27px}
    .feature-grid{grid-template-columns:1fr 1fr}
    .category-grid{grid-template-columns:1fr 1fr}
    .footer-grid{grid-template-columns:1fr;gap:32px}
    .header-nav .nav-link{padding:12px 16px;font-size:14px}
}
@media(max-width:520px){
    .container{padding:0 18px}
    .brand{font-size:16px}.brand i{font-size:20px}
    .hero h1{font-size:28px}
    .hero-badge{font-size:12px;padding:5px 12px}
    .hero-btns .btn{padding:11px 20px;font-size:14px}
    .hero-stats{gap:20px}.stat-block .num{font-size:32px}
    .feature-grid{grid-template-columns:1fr}
    .category-grid{grid-template-columns:1fr}
    .steps-grid{grid-template-columns:1fr}
    .stats-grid{grid-template-columns:1fr 1fr;gap:16px}
    .cta-section{padding:40px 24px}.cta-title{font-size:24px}
    .header-nav .nav-link{padding:11px 14px;font-size:13px}
    .info-item{padding:22px}
}

/* roulang page: category1 */
:root {
            --bg-main: #0b1020;
            --bg-alt: #111932;
            --bg-card: #182342;
            --bg-card-hover: #1f2b4a;
            --border: #263154;
            --border-light: #31416b;
            --text-main: #e9edf5;
            --text-secondary: #a8b3d0;
            --text-muted: #6c7a9e;
            --primary: #7c66ff;
            --primary-hover: #9581ff;
            --accent: #f6a821;
            --accent-hover: #ffc453;
            --success: #28c877;
            --radius-lg: 18px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-lg: 0 25px 60px rgba(0, 0, 0, .35);
            --shadow-md: 0 12px 30px rgba(0, 0, 0, .25);
            --shadow-accent: 0 8px 25px rgba(246, 168, 33, .3);
            --transition: .25s ease;
            --container: 1200px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background: var(--bg-main);
            color: var(--text-main);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        button,
        input {
            font-family: inherit;
            border: none;
            outline: none;
        }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== Header / Nav ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(11, 16, 32, .92);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
        }
        .header-flex {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            min-height: 64px;
            flex-wrap: wrap;
            padding-top: 8px;
            padding-bottom: 8px;
        }
        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 1.15rem;
            font-weight: 800;
            letter-spacing: .5px;
            background: linear-gradient(120deg, #fff, #b9a6ff);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            white-space: nowrap;
        }
        .brand i {
            color: var(--accent);
            -webkit-text-fill-color: var(--accent);
            font-size: 1.25rem;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: 40px;
            padding: 4px 6px 4px 14px;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(124, 102, 255, .15);
        }
        .search-box input {
            background: transparent;
            border: none;
            color: var(--text-main);
            font-size: .85rem;
            width: 180px;
            padding: 6px 0;
        }
        .search-box input::placeholder {
            color: var(--text-muted);
        }
        .search-box button {
            background: var(--primary);
            color: #fff;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: background var(--transition);
        }
        .search-box button:hover {
            background: var(--primary-hover);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: 40px;
            padding: 10px 22px;
            font-weight: 600;
            font-size: .9rem;
            cursor: pointer;
            transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
            border: none;
        }
        .btn-accent {
            background: linear-gradient(120deg, var(--accent), #e8962a);
            color: #0b1020;
            box-shadow: var(--shadow-accent);
        }
        .btn-accent:hover {
            background: linear-gradient(120deg, var(--accent-hover), var(--accent));
            color: #0b1020;
            transform: translateY(-2px);
            box-shadow: 0 12px 35px rgba(246, 168, 33, .4);
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 8px 22px rgba(124, 102, 255, .3);
        }
        .btn-primary:hover {
            background: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 14px 30px rgba(124, 102, 255, .4);
        }
        .btn-outline {
            background: transparent;
            color: var(--text-main);
            border: 1px solid var(--border-light);
        }
        .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
        }
        .nav-toggle {
            display: none;
            background: transparent;
            color: var(--text-main);
            font-size: 1.3rem;
            cursor: pointer;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            transition: background var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, .08);
        }
        .header-nav {
            border-top: 1px solid var(--border);
        }
        .header-nav .container {
            display: flex;
            gap: 4px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            padding-top: 6px;
            padding-bottom: 6px;
        }
        .header-nav .container::-webkit-scrollbar {
            display: none;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 9px 20px;
            border-radius: 40px;
            font-size: .9rem;
            font-weight: 600;
            color: var(--text-secondary);
            white-space: nowrap;
            transition: background var(--transition), color var(--transition);
        }
        .nav-link i {
            font-size: .85rem;
        }
        .nav-link:hover {
            color: var(--text-main);
            background: rgba(255, 255, 255, .06);
        }
        .nav-link.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 15px rgba(124, 102, 255, .35);
        }
        .nav-link.active:hover {
            color: #fff;
        }

        /* ========== Hero ========== */
        .hero {
            position: relative;
            background:
                linear-gradient(135deg, rgba(11, 16, 32, .9) 0%, rgba(17, 25, 50, .78) 55%, rgba(124, 102, 255, .4) 100%),
                url('/assets/images/backpic/back-1.png') center / cover no-repeat;
            padding: 110px 0 100px;
        }
        .hero-content {
            max-width: 640px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(246, 168, 33, .15);
            color: var(--accent);
            font-size: .8rem;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 30px;
            margin-bottom: 18px;
            border: 1px solid rgba(246, 168, 33, .3);
        }
        .hero h1 {
            font-size: clamp(2rem, 4vw, 2.9rem);
            line-height: 1.2;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .hero h1 span {
            color: var(--accent);
        }
        .hero p {
            color: var(--text-secondary);
            font-size: 1.05rem;
            margin-bottom: 26px;
            max-width: 560px;
        }
        .hero-btns {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .hero-meta {
            display: flex;
            gap: 28px;
            margin-top: 42px;
            padding-top: 28px;
            border-top: 1px solid var(--border);
        }
        .hero-meta .meta-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: .9rem;
            color: var(--text-secondary);
        }
        .hero-meta .meta-item i {
            color: var(--accent);
            font-size: 1rem;
        }

        /* ========== Section common ========== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-alt);
        }
        .section-head {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 48px;
        }
        .section-head .tag {
            display: inline-block;
            font-size: .8rem;
            font-weight: 600;
            color: var(--accent);
            background: rgba(246, 168, 33, .1);
            border: 1px solid rgba(246, 168, 33, .25);
            padding: 4px 14px;
            border-radius: 30px;
            margin-bottom: 12px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .section-head h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 800;
            margin-bottom: 12px;
        }
        .section-head p {
            color: var(--text-secondary);
            font-size: .95rem;
        }

        /* ========== Methods cards ========== */
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .method-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
        }
        .method-card:hover {
            transform: translateY(-6px);
            border-color: var(--border-light);
            box-shadow: var(--shadow-lg);
        }
        .method-thumb {
            height: 190px;
            overflow: hidden;
            position: relative;
        }
        .method-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }
        .method-card:hover .method-thumb img {
            transform: scale(1.05);
        }
        .method-thumb::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 55%, rgba(11, 16, 32, .6));
        }
        .method-body {
            padding: 22px;
        }
        .method-body .badge {
            display: inline-block;
            background: rgba(124, 102, 255, .15);
            color: var(--primary-hover);
            font-size: .75rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 20px;
            margin-bottom: 10px;
        }
        .method-body .badge.hot {
            background: rgba(246, 168, 33, .15);
            color: var(--accent);
        }
        .method-body h3 {
            font-size: 1.15rem;
            margin-bottom: 8px;
            font-weight: 700;
        }
        .method-body p {
            color: var(--text-secondary);
            font-size: .9rem;
            line-height: 1.65;
            margin-bottom: 14px;
        }
        .text-link {
            color: var(--accent);
            font-weight: 600;
            font-size: .9rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .text-link:hover {
            color: var(--accent-hover);
            gap: 10px;
            transition: gap var(--transition);
        }

        /* ========== Steps ========== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            counter-reset: step;
        }
        .step-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 28px 22px;
            text-align: center;
            position: relative;
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .step-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .step-num {
            width: 46px;
            height: 46px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), #9b7fff);
            color: #fff;
            font-weight: 800;
            font-size: 1.15rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            box-shadow: 0 6px 18px rgba(124, 102, 255, .35);
        }
        .step-item h3 {
            font-size: 1.05rem;
            margin-bottom: 8px;
        }
        .step-item p {
            color: var(--text-secondary);
            font-size: .88rem;
            line-height: 1.6;
        }

        /* ========== Stats ========== */
        .stats {
            position: relative;
            background:
                linear-gradient(135deg, rgba(11, 16, 32, .92), rgba(17, 25, 50, .85)),
                url('/assets/images/backpic/back-2.png') center / cover no-repeat;
            padding: 90px 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
            text-align: center;
        }
        .stat-item {
            padding: 30px 18px;
            border-radius: var(--radius-lg);
            background: rgba(255, 255, 255, .04);
            border: 1px solid rgba(255, 255, 255, .08);
            transition: background var(--transition), transform var(--transition);
        }
        .stat-item:hover {
            background: rgba(255, 255, 255, .08);
            transform: translateY(-4px);
        }
        .stat-num {
            font-size: clamp(2rem, 4vw, 2.6rem);
            font-weight: 900;
            color: var(--accent);
            line-height: 1;
            margin-bottom: 8px;
        }
        .stat-label {
            color: var(--text-secondary);
            font-size: .9rem;
        }

        /* ========== Resources ========== */
        .posts-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .post-card {
            display: flex;
            gap: 0;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .post-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .post-thumb {
            width: 180px;
            flex-shrink: 0;
            min-height: 150px;
            overflow: hidden;
        }
        .post-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }
        .post-card:hover .post-thumb img {
            transform: scale(1.06);
        }
        .post-body {
            padding: 20px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .post-body .post-cat {
            font-size: .75rem;
            color: var(--accent);
            font-weight: 600;
            margin-bottom: 6px;
        }
        .post-body h3 {
            font-size: 1rem;
            line-height: 1.4;
            margin-bottom: 8px;
        }
        .post-body p {
            color: var(--text-secondary);
            font-size: .85rem;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .post-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: .78rem;
            color: var(--text-muted);
            margin-top: 10px;
        }

        /* ========== FAQ ========== */
        .faq-wrap {
            max-width: 780px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            overflow: hidden;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow-md);
        }
        .faq-item details {
            padding: 0;
        }
        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            font-size: .95rem;
            font-weight: 600;
            cursor: pointer;
            list-style: none;
            transition: color 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;
            color: var(--accent);
            font-size: .85rem;
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item details[open] summary::after {
            transform: rotate(180deg);
        }
        .faq-item details[open] summary {
            color: var(--accent);
        }
        .faq-answer {
            padding: 0 22px 20px;
            color: var(--text-secondary);
            font-size: .9rem;
            line-height: 1.7;
        }

        /* ========== CTA ========== */
        .cta-section {
            position: relative;
            background:
                linear-gradient(135deg, rgba(124, 102, 255, .2), rgba(11, 16, 32, .9)),
                url('/assets/images/backpic/back-3.png') center / cover no-repeat;
            padding: 90px 0;
            text-align: center;
        }
        .cta-section h2 {
            font-size: clamp(1.8rem, 4vw, 2.5rem);
            font-weight: 800;
            margin-bottom: 12px;
        }
        .cta-section p {
            color: var(--text-secondary);
            font-size: 1rem;
            max-width: 560px;
            margin: 0 auto 30px;
        }
        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: #070c18;
            border-top: 1px solid var(--border);
            padding-top: 60px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-logo {
            font-size: 1.15rem;
            font-weight: 800;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-logo i {
            color: var(--accent);
        }
        .footer-brand p {
            color: var(--text-secondary);
            font-size: .9rem;
            line-height: 1.7;
            max-width: 360px;
        }
        .footer-links h4,
        .footer-notes h4 {
            font-size: 1rem;
            margin-bottom: 14px;
            color: var(--text-main);
        }
        .footer-links a {
            display: block;
            color: var(--text-secondary);
            font-size: .9rem;
            padding: 5px 0;
            transition: color var(--transition), padding-left var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 6px;
        }
        .footer-notes p {
            color: var(--text-secondary);
            font-size: .9rem;
            padding: 5px 0;
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding: 22px 0;
            text-align: center;
        }
        .footer-bottom p {
            color: var(--text-muted);
            font-size: .82rem;
            line-height: 1.8;
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stats-grid {
                gap: 16px;
            }
            .post-card {
                flex-direction: column;
            }
            .post-thumb {
                width: 100%;
                height: 160px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }
            .hero {
                padding: 70px 0 60px;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .hero-meta {
                flex-direction: column;
                gap: 12px;
            }
            .search-box {
                display: none;
            }
            .nav-toggle {
                display: flex;
                align-items: center;
                justify-content: center;
            }
            .header-nav .container {
                justify-content: flex-start;
            }
            .cards-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .posts-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .footer-brand p {
                max-width: 100%;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .brand {
                font-size: .95rem;
            }
            .brand i {
                font-size: 1rem;
            }
            .header-actions {
                gap: 8px;
            }
            .btn-accent {
                padding: 7px 14px;
                font-size: .8rem;
            }
            .nav-toggle {
                width: 36px;
                height: 36px;
                font-size: 1rem;
            }
            .hero-btns {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-btns .btn {
                text-align: center;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .section-head p {
                font-size: .88rem;
            }
            .faq-item summary {
                font-size: .88rem;
                padding: 15px 16px;
            }
            .faq-answer {
                padding: 0 16px 16px;
                font-size: .85rem;
            }
            .post-thumb {
                height: 130px;
            }
        }

/* roulang page: article */
:root {
    --primary: #0b1220;
    --primary-light: #1d2b4a;
    --accent: #f5a623;
    --accent-hover: #dd8f10;
    --bg: #f6f8fc;
    --card-bg: #ffffff;
    --text: #1d2433;
    --text-light: #6b7280;
    --border: #e5e9f2;
    --radius: 18px;
    --radius-sm: 12px;
    --shadow: 0 8px 30px rgba(11, 18, 32, 0.06);
    --shadow-lg: 0 16px 48px rgba(11, 18, 32, 0.12);
    --transition: 0.3s ease;
    --font-family: -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-family);
    color: var(--text);
    background: var(--bg);
    line-height: 1.7;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

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

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

button,
input {
    font-family: inherit;
    font-size: inherit;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 22px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    line-height: 1.5;
    white-space: nowrap;
}

.btn-primary {
    background: var(--accent);
    color: #0b1220;
}

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(245, 166, 35, 0.35);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: none;
}

.btn-accent {
    background: var(--accent);
    color: #0b1220;
}

.btn-accent:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(245, 166, 35, 0.35);
}

.btn-accent:active {
    transform: translateY(0);
    box-shadow: none;
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--border);
    color: var(--text);
}

.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

.btn-outline:active {
    transform: translateY(0);
}

.btn-lg {
    padding: 14px 30px;
    font-size: 16px;
}

.btn-block {
    width: 100%;
    justify-content: center;
}

.btn:focus-visible {
    outline: 3px solid rgba(245, 166, 35, 0.5);
    outline-offset: 2px;
}

.site-header {
    background: linear-gradient(180deg, #0b1220 0%, #101c33 100%);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.22);
}

.header-top {
    padding: 14px 0;
}

.header-flex {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 800;
    color: #ffffff;
    letter-spacing: 0.5px;
}

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

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

.search-box {
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 50px;
    padding: 6px 6px 6px 18px;
    width: 260px;
    transition: background var(--transition), width var(--transition);
}

.search-box:focus-within {
    background: rgba(255, 255, 255, 0.14);
    box-shadow: 0 0 0 2px rgba(245, 166, 35, 0.3);
}

.search-box input {
    background: transparent;
    border: none;
    outline: none;
    color: #ffffff;
    flex: 1;
    font-size: 14px;
    min-width: 0;
}

.search-box input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.search-box button {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    border: none;
    background: var(--accent);
    color: #0b1220;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: background var(--transition), transform var(--transition);
}

.search-box button:hover {
    background: var(--accent-hover);
    transform: scale(1.06);
}

.nav-toggle {
    display: none;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.08);
    color: #ffffff;
    font-size: 18px;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    transition: background var(--transition), transform var(--transition);
}

.nav-toggle:hover {
    background: rgba(255, 255, 255, 0.16);
}

.nav-toggle:focus-visible {
    outline: 3px solid rgba(245, 166, 35, 0.5);
    outline-offset: 2px;
}

.header-nav {
    background: rgba(255, 255, 255, 0.04);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.header-nav .container {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 20px;
    overflow-x: auto;
    scrollbar-width: none;
}

.header-nav .container::-webkit-scrollbar {
    display: none;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.75);
    padding: 10px 18px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 500;
    transition: background var(--transition), color var(--transition);
    white-space: nowrap;
}

.nav-link:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.08);
}

.nav-link.active {
    background: var(--accent);
    color: #0b1220;
    font-weight: 700;
}

.page-hero {
    position: relative;
    padding: 72px 0 64px;
    background-size: cover;
    background-position: center;
    overflow: hidden;
}

.page-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(11, 18, 32, 0.92) 0%, rgba(11, 18, 32, 0.6) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
    margin-bottom: 18px;
    flex-wrap: wrap;
}

.breadcrumb a {
    color: var(--accent);
    font-weight: 500;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

.breadcrumb-sep {
    color: rgba(255, 255, 255, 0.4);
}

.hero-content h1 {
    font-size: clamp(28px, 4vw, 42px);
    font-weight: 800;
    line-height: 1.3;
    color: #ffffff;
    margin-bottom: 16px;
}

.article-meta {
    display: flex;
    gap: 18px;
    flex-wrap: wrap;
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
}

.meta-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(255, 255, 255, 0.08);
    padding: 6px 14px;
    border-radius: 999px;
}

.article-wrap {
    padding: 60px 0;
}

.article-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 40px;
    align-items: start;
}

.article-main {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 40px;
    box-shadow: var(--shadow);
}

.article-body {
    font-size: 16px;
    line-height: 1.9;
    color: var(--text);
}

.article-body h2 {
    font-size: 26px;
    margin: 36px 0 16px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--border);
    color: var(--primary);
    font-weight: 800;
}

.article-body h2:first-child {
    margin-top: 0;
}

.article-body h3 {
    font-size: 20px;
    margin: 28px 0 12px;
    color: var(--primary);
    font-weight: 700;
}

.article-body p {
    margin-bottom: 18px;
}

.article-body ul,
.article-body ol {
    padding-left: 24px;
    margin-bottom: 18px;
}

.article-body li {
    margin-bottom: 8px;
}

.article-body img {
    max-width: 100%;
    border-radius: var(--radius-sm);
    margin: 20px 0;
}

.article-body blockquote {
    border-left: 4px solid var(--accent);
    padding: 12px 20px;
    background: rgba(245, 166, 35, 0.08);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin: 20px 0;
    color: var(--text-light);
}

.article-body a {
    color: var(--accent);
    font-weight: 500;
}

.article-body a:hover {
    text-decoration: underline;
}

.article-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

.article-body th,
.article-body td {
    border: 1px solid var(--border);
    padding: 10px 14px;
    text-align: left;
}

.article-body th {
    background: var(--bg);
    font-weight: 700;
}

.article-body code {
    background: var(--bg);
    padding: 2px 8px;
    border-radius: 6px;
    font-size: 14px;
    color: var(--primary-light);
}

.article-footer {
    margin-top: 36px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}

.article-tags {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.article-tags a {
    background: var(--bg);
    padding: 6px 14px;
    border-radius: 999px;
    font-size: 13px;
    color: var(--text-light);
    transition: background var(--transition), color var(--transition);
}

.article-tags a:hover {
    background: var(--accent);
    color: #ffffff;
}

.article-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.not-found-box {
    text-align: center;
    padding: 60px 20px;
}

.not-found-icon {
    font-size: 64px;
    color: var(--accent);
    margin-bottom: 20px;
    animation: floatY 2.5s ease-in-out infinite;
}

@keyframes floatY {
    0%,
    100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.not-found-box h2 {
    font-size: 28px;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 12px;
}

.not-found-box p {
    color: var(--text-light);
    margin-bottom: 24px;
    max-width: 420px;
    margin-left: auto;
    margin-right: auto;
}

.article-sidebar {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.side-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
    transition: box-shadow var(--transition);
}

.side-card:hover {
    box-shadow: var(--shadow-lg);
}

.side-card-primary {
    background: linear-gradient(135deg, #0b1220, #1d2b4a);
    color: #ffffff;
    text-align: center;
}

.side-card-icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: #0b1220;
    margin: 0 auto 16px;
}

.side-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
}

.side-card p {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 16px;
    line-height: 1.7;
}

.side-card-primary p {
    color: rgba(255, 255, 255, 0.75);
}

.side-card-primary .btn {
    margin-top: 4px;
}

.side-card-image {
    padding: 0;
    overflow: hidden;
}

.side-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    min-height: 180px;
    transition: transform var(--transition);
}

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

.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag-cloud a {
    background: var(--bg);
    padding: 5px 12px;
    border-radius: 999px;
    font-size: 13px;
    color: var(--text-light);
    transition: background var(--transition), color var(--transition);
}

.tag-cloud a:hover {
    background: var(--accent);
    color: #ffffff;
}

.stats-section {
    background: #0b1220;
    padding: 56px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.stat-card {
    text-align: center;
    background: rgba(255, 255, 255, 0.04);
    border-radius: var(--radius-sm);
    padding: 28px 20px;
    transition: background var(--transition), transform var(--transition);
}

.stat-card:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-4px);
}

.stat-value {
    font-size: 40px;
    font-weight: 800;
    color: var(--accent);
    margin-bottom: 6px;
    line-height: 1.2;
}

.stat-label {
    color: rgba(255, 255, 255, 0.7);
    font-size: 15px;
}

.steps-section {
    padding: 80px 0;
}

.section-head {
    text-align: center;
    margin-bottom: 48px;
    max-width: 640px;
    margin-left: auto;
    margin-right: auto;
}

.section-tag {
    display: inline-block;
    background: rgba(245, 166, 35, 0.12);
    color: var(--accent);
    padding: 6px 18px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 14px;
}

.section-head h2 {
    font-size: 34px;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 10px;
    line-height: 1.3;
}

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

.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.step-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 32px;
    box-shadow: var(--shadow);
    position: relative;
    transition: transform var(--transition), box-shadow var(--transition);
}

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

.step-num {
    position: absolute;
    top: 20px;
    right: 24px;
    font-size: 48px;
    font-weight: 800;
    color: rgba(11, 18, 32, 0.06);
    line-height: 1;
}

.step-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--accent), #ffd166);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: #0b1220;
    margin-bottom: 20px;
}

.step-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 10px;
}

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

.faq-section {
    padding: 80px 0;
    background: var(--card-bg);
}

.faq-section .section-head {
    margin-bottom: 40px;
}

.faq-list {
    max-width: 860px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.faq-item {
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg);
    overflow: hidden;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.faq-item:hover {
    border-color: rgba(245, 166, 35, 0.5);
}

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

.faq-item summary {
    padding: 18px 24px;
    cursor: pointer;
    font-weight: 600;
    color: var(--text);
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    font-size: 15px;
}

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

.faq-item summary::after {
    content: "\f078";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    font-size: 13px;
    color: var(--text-light);
    transition: transform var(--transition);
    flex-shrink: 0;
}

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

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

.faq-item p {
    padding: 0 24px 18px;
    color: var(--text-light);
    font-size: 15px;
    line-height: 1.8;
}

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

.cta-box {
    position: relative;
    border-radius: var(--radius);
    background-size: cover;
    background-position: center;
    padding: 64px 40px;
    text-align: center;
    overflow: hidden;
}

.cta-box::before {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(11, 18, 32, 0.78);
}

.cta-content {
    position: relative;
    z-index: 2;
    max-width: 620px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: 36px;
    font-weight: 800;
    color: #ffffff;
    margin-bottom: 14px;
    line-height: 1.3;
}

.cta-content p {
    color: rgba(255, 255, 255, 0.75);
    font-size: 16px;
    margin-bottom: 28px;
}

.site-footer {
    background: #0b1220;
    color: rgba(255, 255, 255, 0.65);
    padding: 60px 0 0;
    font-size: 14px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 800;
    color: #ffffff;
    margin-bottom: 14px;
}

.footer-logo i {
    color: var(--accent);
    font-size: 22px;
}

.footer-brand p {
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.6);
    max-width: 340px;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links h4,
.footer-notes h4 {
    color: #ffffff;
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 6px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    transition: color var(--transition);
}

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

.footer-notes p {
    margin-bottom: 6px;
    line-height: 1.6;
}

.footer-bottom {
    padding: 20px 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.45);
    line-height: 1.6;
}

@media (max-width: 1024px) {
    .article-layout {
        grid-template-columns: 1fr;
    }

    .article-sidebar {
        flex-direction: row;
        gap: 20px;
        flex-wrap: wrap;
    }

    .side-card {
        flex: 1;
        min-width: 220px;
    }

    .side-card-image {
        flex: 1;
    }

    .steps-grid {
        gap: 20px;
    }

    .footer-grid {
        gap: 32px;
    }
}

@media (max-width: 768px) {
    .header-top {
        padding: 12px 0;
    }

    .brand {
        font-size: 17px;
    }

    .search-box {
        width: 100%;
        order: 3;
    }

    .btn-accent {
        display: none;
    }

    .nav-toggle {
        display: inline-flex;
    }

    .header-nav {
        display: none;
        border-top: 1px solid rgba(255, 255, 255, 0.08);
    }

    .header-nav.open {
        display: block;
    }

    .header-nav .container {
        flex-direction: column;
        align-items: stretch;
        overflow-x: visible;
        padding: 10px 16px;
    }

    .nav-link {
        justify-content: center;
        border-radius: 10px;
        padding: 12px 16px;
    }

    .page-hero {
        padding: 48px 0 40px;
    }

    .hero-content h1 {
        font-size: 26px;
    }

    .article-wrap {
        padding: 40px 0;
    }

    .article-main {
        padding: 24px;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

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

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

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

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

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

    .cta-box {
        padding: 44px 20px;
    }

    .cta-content h2 {
        font-size: 28px;
    }

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

@media (max-width: 520px) {
    .container {
        padding: 0 16px;
    }

    .brand {
        font-size: 15px;
        gap: 6px;
    }

    .brand i {
        font-size: 20px;
    }

    .section-head h2 {
        font-size: 24px;
    }

    .section-head p {
        font-size: 14px;
    }

    .article-body {
        font-size: 15px;
    }

    .article-body h2 {
        font-size: 22px;
    }

    .article-body h3 {
        font-size: 18px;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }

    .stat-card {
        padding: 20px 14px;
    }

    .stat-value {
        font-size: 28px;
    }

    .stat-label {
        font-size: 13px;
    }

    .step-card {
        padding: 24px;
    }

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

    .side-card {
        min-width: 100%;
    }

    .meta-item {
        font-size: 13px;
        padding: 5px 10px;
    }
}