/* roulang page: index */
:root {
  --primary: #e85d3a;
  --primary-dark: #c94d2e;
  --primary-light: #f07a5c;
  --secondary: #2b3d5f;
  --secondary-light: #3d5478;
  --accent: #f5b342;
  --bg-dark: #0f1923;
  --bg-section: #f8f6f3;
  --bg-card: #ffffff;
  --text-dark: #1a1a2e;
  --text-body: #3d3d4a;
  --text-light: #7a7a8a;
  --text-white: #f5f5f5;
  --border: #e8e4e0;
  --border-light: #f0ece8;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --shadow: 0 4px 20px rgba(0,0,0,0.06);
  --shadow-hover: 0 12px 40px rgba(0,0,0,0.10);
  --shadow-btn: 0 4px 14px rgba(232,93,58,0.30);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-base: 'Inter', -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --container: 1200px;
  --nav-height: 72px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-base);color:var(--text-body);background:var(--bg-dark);line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:var(--primary);text-decoration:none;transition:var(--transition)}
a:hover{color:var(--primary-dark)}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
button,input,textarea{font-family:inherit;font-size:inherit}
h1,h2,h3,h4,h5,h6{color:var(--text-dark);font-weight:700;line-height:1.3}
h1{font-size:clamp(2rem, 4.5vw, 3.4rem)}
h2{font-size:clamp(1.5rem, 3vw, 2.4rem)}
h3{font-size:clamp(1.2rem, 2vw, 1.6rem)}
h4{font-size:1.1rem}
p{margin-bottom:1rem}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;width:100%}
.section{padding:clamp(48px, 8vw, 96px) 0}
.section-title{text-align:center;margin-bottom:48px}
.section-title h2{position:relative;display:inline-block;margin-bottom:12px}
.section-title h2::after{content:'';display:block;width:60px;height:4px;background:var(--primary);border-radius:4px;margin:12px auto 0}
.section-title p{color:var(--text-light);font-size:1.05rem;max-width:560px;margin:0 auto}
.text-center{text-align:center}
.mb-1{margin-bottom:12px}
.mb-2{margin-bottom:24px}
.mb-3{margin-bottom:48px}
.mt-2{margin-top:24px}
.mt-3{margin-top:48px}

/* ===== Header & Nav ===== */
.site-header{position:fixed;top:0;left:0;width:100%;z-index:1000;background:rgba(15,25,35,0.92);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid rgba(255,255,255,0.06);height:var(--nav-height);transition:var(--transition)}
.site-header .container{display:flex;align-items:center;justify-content:space-between;height:100%}
.header-left{display:flex;align-items:center;gap:12px}
.logo{display:flex;align-items:center;gap:10px;font-size:1.3rem;font-weight:800;color:var(--text-white);letter-spacing:-0.5px}
.logo i{font-size:1.6rem;color:var(--primary);background:rgba(232,93,58,0.15);padding:8px;border-radius:10px}
.logo span{background:linear-gradient(135deg,#fff 60%,var(--primary-light));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.header-nav{display:flex;align-items:center;gap:32px}
.header-nav a{color:rgba(255,255,255,0.65);font-size:0.92rem;font-weight:500;padding:6px 0;position:relative;transition:var(--transition)}
.header-nav a::after{content:'';position:absolute;bottom:0;left:0;width:0;height:2px;background:var(--primary);border-radius:2px;transition:var(--transition)}
.header-nav a:hover{color:var(--text-white)}
.header-nav a:hover::after{width:100%}
.header-nav a.active{color:var(--text-white)}
.header-nav a.active::after{width:100%}
.header-right{display:flex;align-items:center;gap:16px}
.search-box{display:flex;align-items:center;background:rgba(255,255,255,0.06);border:1px solid rgba(255,255,255,0.08);border-radius:24px;padding:0 16px;transition:var(--transition)}
.search-box:focus-within{border-color:var(--primary);background:rgba(255,255,255,0.10)}
.search-box input{background:none;border:none;outline:none;color:var(--text-white);padding:8px 0;font-size:0.85rem;width:140px}
.search-box input::placeholder{color:rgba(255,255,255,0.35)}
.search-box button{background:none;border:none;color:rgba(255,255,255,0.45);cursor:pointer;padding:6px 0 6px 8px;transition:var(--transition)}
.search-box button:hover{color:var(--primary)}
.btn-header{background:var(--primary);color:var(--text-white);padding:8px 24px;border-radius:24px;font-size:0.85rem;font-weight:600;border:none;cursor:pointer;transition:var(--transition);box-shadow:var(--shadow-btn);display:inline-flex;align-items:center;gap:6px}
.btn-header:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 6px 20px rgba(232,93,58,0.40);color:#fff}
.btn-outline-header{background:transparent;color:rgba(255,255,255,0.8);border:1px solid rgba(255,255,255,0.20);padding:8px 20px;border-radius:24px;font-size:0.85rem;font-weight:500;cursor:pointer;transition:var(--transition)}
.btn-outline-header:hover{color:#fff;border-color:var(--primary);background:rgba(232,93,58,0.10)}
.mobile-toggle{display:none;background:none;border:none;color:var(--text-white);font-size:1.4rem;cursor:pointer;padding:4px}

/* ===== Hero ===== */
.hero{min-height:92vh;display:flex;align-items:center;position:relative;background:linear-gradient(135deg,#0f1923 0%,#1a2a3a 50%,#0f1923 100%);overflow:hidden;padding-top:var(--nav-height)}
.hero-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.png') center center / cover no-repeat;opacity:0.25;z-index:0}
.hero-overlay{position:absolute;inset:0;background:radial-gradient(ellipse at 30% 50%, rgba(232,93,58,0.08) 0%, transparent 70%),radial-gradient(ellipse at 70% 50%, rgba(43,61,95,0.12) 0%, transparent 70%);z-index:1}
.hero .container{position:relative;z-index:2}
.hero-content{max-width:720px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(232,93,58,0.12);border:1px solid rgba(232,93,58,0.20);color:var(--primary-light);padding:6px 18px;border-radius:24px;font-size:0.82rem;font-weight:500;margin-bottom:24px;backdrop-filter:blur(8px)}
.hero-badge i{font-size:0.75rem}
.hero h1{color:var(--text-white);font-size:clamp(2rem, 5vw, 3.8rem);font-weight:800;line-height:1.15;margin-bottom:20px;letter-spacing:-1px}
.hero h1 .highlight{background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero p{color:rgba(255,255,255,0.65);font-size:clamp(1rem, 1.6vw, 1.2rem);max-width:560px;margin-bottom:32px;line-height:1.8}
.hero-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.btn-primary{display:inline-flex;align-items:center;gap:8px;background:var(--primary);color:var(--text-white);padding:14px 36px;border-radius:30px;font-size:1rem;font-weight:600;border:none;cursor:pointer;transition:var(--transition);box-shadow:var(--shadow-btn)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-3px);box-shadow:0 8px 30px rgba(232,93,58,0.45);color:#fff}
.btn-secondary{display:inline-flex;align-items:center;gap:8px;background:transparent;color:var(--text-white);padding:14px 36px;border-radius:30px;font-size:1rem;font-weight:500;border:1px solid rgba(255,255,255,0.20);cursor:pointer;transition:var(--transition)}
.btn-secondary:hover{background:rgba(255,255,255,0.06);border-color:rgba(255,255,255,0.35);color:#fff}
.hero-stats{display:flex;gap:40px;margin-top:48px;padding-top:32px;border-top:1px solid rgba(255,255,255,0.06)}
.hero-stat{text-align:left}
.hero-stat .num{font-size:1.6rem;font-weight:800;color:var(--text-white);letter-spacing:-0.5px}
.hero-stat .num span{color:var(--primary)}
.hero-stat .label{font-size:0.82rem;color:rgba(255,255,255,0.45);margin-top:2px}

/* ===== Features / Core ===== */
.features-section{background:var(--bg-section)}
.feature-grid{display:grid;grid-template-columns:repeat(auto-fit, minmax(260px, 1fr));gap:28px}
.feature-card{background:var(--bg-card);border-radius:var(--radius);padding:36px 28px;text-align:center;box-shadow:var(--shadow);transition:var(--transition);border:1px solid var(--border-light)}
.feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:var(--primary)}
.feature-icon{width:64px;height:64px;border-radius:16px;display:flex;align-items:center;justify-content:center;margin:0 auto 20px;font-size:1.5rem;color:var(--text-white)}
.feature-icon.one{background:linear-gradient(135deg,#e85d3a,#f07a5c)}
.feature-icon.two{background:linear-gradient(135deg,#2b3d5f,#3d5478)}
.feature-icon.three{background:linear-gradient(135deg,#f5b342,#f7c56a)}
.feature-icon.four{background:linear-gradient(135deg,#3a7e6b,#5aa68e)}
.feature-card h3{font-size:1.15rem;margin-bottom:10px}
.feature-card p{color:var(--text-light);font-size:0.92rem;margin:0;line-height:1.7}

/* ===== Category Entry ===== */
.category-section{background:var(--bg-dark);color:var(--text-white)}
.category-section .section-title h2{color:var(--text-white)}
.category-section .section-title p{color:rgba(255,255,255,0.55)}
.category-grid{display:grid;grid-template-columns:repeat(auto-fit, minmax(300px, 1fr));gap:28px}
.category-card{position:relative;border-radius:var(--radius-lg);overflow:hidden;min-height:280px;display:flex;align-items:flex-end;cursor:pointer;transition:var(--transition);border:1px solid rgba(255,255,255,0.06)}
.category-card:hover{transform:translateY(-6px);box-shadow:0 16px 48px rgba(0,0,0,0.30)}
.category-card .cat-bg{position:absolute;inset:0;background-size:cover;background-position:center;transition:var(--transition);opacity:0.5}
.category-card:hover .cat-bg{transform:scale(1.05);opacity:0.7}
.category-card .cat-overlay{position:absolute;inset:0;background:linear-gradient(0deg, rgba(15,25,35,0.85) 0%, rgba(15,25,35,0.20) 60%, transparent 100%)}
.category-card .cat-content{position:relative;z-index:2;padding:32px 28px;width:100%}
.category-card .cat-tag{display:inline-block;background:var(--primary);color:var(--text-white);padding:4px 14px;border-radius:16px;font-size:0.75rem;font-weight:600;margin-bottom:12px}
.category-card h3{color:var(--text-white);font-size:1.3rem;margin-bottom:8px}
.category-card p{color:rgba(255,255,255,0.65);font-size:0.9rem;margin:0;line-height:1.6}
.category-card .cat-arrow{position:absolute;right:24px;bottom:32px;width:40px;height:40px;border-radius:50%;background:var(--primary);display:flex;align-items:center;justify-content:center;color:#fff;font-size:0.9rem;transition:var(--transition);opacity:0;transform:translateX(-10px)}
.category-card:hover .cat-arrow{opacity:1;transform:translateX(0)}

/* ===== Latest Posts ===== */
.latest-section{background:var(--bg-section)}
.post-grid{display:grid;grid-template-columns:repeat(auto-fit, minmax(300px, 1fr));gap:28px}
.post-card{background:var(--bg-card);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:var(--transition);border:1px solid var(--border-light);display:flex;flex-direction:column}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.post-card .post-img{height:180px;background-size:cover;background-position:center;position:relative}
.post-card .post-img .post-cat{position:absolute;top:12px;left:12px;background:var(--primary);color:#fff;padding:3px 14px;border-radius:14px;font-size:0.72rem;font-weight:600}
.post-card .post-body{padding:24px;flex:1;display:flex;flex-direction:column}
.post-card .post-body h3{font-size:1.05rem;margin-bottom:8px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card .post-body h3 a{color:var(--text-dark)}.post-card .post-body h3 a:hover{color:var(--primary)}
.post-card .post-body p{color:var(--text-light);font-size:0.88rem;margin-bottom:16px;flex:1;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card .post-meta{display:flex;align-items:center;justify-content:space-between;padding-top:14px;border-top:1px solid var(--border-light);font-size:0.8rem;color:var(--text-light)}
.post-card .post-meta .meta-date i{margin-right:4px}
.post-card .post-meta .meta-more{color:var(--primary);font-weight:500}
.empty-posts{padding:48px 24px;text-align:center;color:var(--text-light);background:var(--bg-card);border-radius:var(--radius);grid-column:1 / -1;font-size:0.95rem}

/* ===== Stats / Numbers ===== */
.stats-section{background:linear-gradient(135deg,#0f1923 0%,#1a2a3a 100%);position:relative;overflow:hidden}
.stats-section::before{content:'';position:absolute;inset:0;background:url('/assets/images/backpic/back-2.png') center center / cover no-repeat;opacity:0.08}
.stats-section .container{position:relative;z-index:2}
.stats-section .section-title h2{color:var(--text-white)}
.stats-section .section-title p{color:rgba(255,255,255,0.55)}
.stats-grid{display:grid;grid-template-columns:repeat(auto-fit, minmax(200px, 1fr));gap:32px;text-align:center}
.stat-item{padding:32px 20px;background:rgba(255,255,255,0.03);border-radius:var(--radius);border:1px solid rgba(255,255,255,0.05);transition:var(--transition)}
.stat-item:hover{background:rgba(255,255,255,0.06);transform:translateY(-3px)}
.stat-item .stat-icon{font-size:2rem;color:var(--primary);margin-bottom:12px}
.stat-item .stat-num{font-size:2.2rem;font-weight:800;color:var(--text-white);letter-spacing:-1px;margin-bottom:4px}
.stat-item .stat-num span{color:var(--primary)}
.stat-item .stat-label{color:rgba(255,255,255,0.5);font-size:0.9rem}

/* ===== Process ===== */
.process-section{background:var(--bg-section)}
.process-steps{display:grid;grid-template-columns:repeat(auto-fit, minmax(220px, 1fr));gap:24px;position:relative}
.process-step{text-align:center;padding:32px 20px;position:relative}
.process-step .step-num{width:48px;height:48px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.1rem;font-weight:700;margin:0 auto 20px;position:relative;z-index:2}
.process-step .step-num::after{content:'';position:absolute;inset:-6px;border-radius:50%;border:2px dashed rgba(232,93,58,0.20);animation:spin 20s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.process-step h3{font-size:1.05rem;margin-bottom:8px}
.process-step p{color:var(--text-light);font-size:0.88rem;margin:0;line-height:1.6}

/* ===== FAQ ===== */
.faq-section{background:var(--bg-dark);color:var(--text-white)}
.faq-section .section-title h2{color:var(--text-white)}
.faq-section .section-title p{color:rgba(255,255,255,0.55)}
.faq-list{max-width:780px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{background:rgba(255,255,255,0.03);border:1px solid rgba(255,255,255,0.06);border-radius:var(--radius);overflow:hidden;transition:var(--transition)}
.faq-item:hover{border-color:rgba(232,93,58,0.20)}
.faq-question{display:flex;align-items:center;justify-content:space-between;padding:20px 28px;cursor:pointer;font-weight:600;font-size:0.98rem;color:var(--text-white);transition:var(--transition);background:none;border:none;width:100%;text-align:left}
.faq-question i{color:var(--primary);transition:var(--transition);font-size:0.9rem}
.faq-item.active .faq-question i{transform:rotate(180deg)}
.faq-answer{padding:0 28px 20px;color:rgba(255,255,255,0.6);font-size:0.9rem;line-height:1.7;display:none}
.faq-item.active .faq-answer{display:block}

/* ===== CTA ===== */
.cta-section{background:linear-gradient(135deg,#e85d3a 0%,#c94d2e 100%);padding:64px 0;text-align:center;position:relative;overflow:hidden}
.cta-section::before{content:'';position:absolute;inset:0;background:url('/assets/images/backpic/back-3.png') center center / cover no-repeat;opacity:0.10}
.cta-section .container{position:relative;z-index:2}
.cta-section h2{color:var(--text-white);font-size:clamp(1.5rem, 3vw, 2.2rem);margin-bottom:12px}
.cta-section p{color:rgba(255,255,255,0.8);font-size:1.05rem;max-width:520px;margin:0 auto 28px}
.cta-section .btn-cta{display:inline-flex;align-items:center;gap:8px;background:var(--text-white);color:var(--primary);padding:14px 40px;border-radius:30px;font-size:1rem;font-weight:700;border:none;cursor:pointer;transition:var(--transition);box-shadow:0 4px 20px rgba(0,0,0,0.15)}
.cta-section .btn-cta:hover{transform:translateY(-3px);box-shadow:0 8px 30px rgba(0,0,0,0.25);color:var(--primary-dark)}

/* ===== Footer ===== */
.site-footer{background:#0a1118;color:rgba(255,255,255,0.5);padding:48px 0 24px;border-top:1px solid rgba(255,255,255,0.04)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:32px}
.footer-brand .logo{font-size:1.2rem;margin-bottom:12px}
.footer-brand p{font-size:0.88rem;line-height:1.7;max-width:300px}
.footer-col h4{color:var(--text-white);font-size:0.92rem;font-weight:600;margin-bottom:16px}
.footer-col a{display:block;color:rgba(255,255,255,0.45);font-size:0.85rem;padding:4px 0;transition:var(--transition)}
.footer-col a:hover{color:var(--primary);padding-left:4px}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.04);padding-top:20px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:0.82rem}
.footer-bottom .copyright{color:rgba(255,255,255,0.3)}

/* ===== Mobile Nav ===== */
@media (max-width: 1024px) {
  .header-nav{display:none}
  .header-right .search-box{display:none}
  .mobile-toggle{display:block}
  .mobile-menu-open .header-nav{display:flex;flex-direction:column;position:absolute;top:var(--nav-height);left:0;width:100%;background:rgba(15,25,35,0.98);backdrop-filter:blur(20px);padding:24px;gap:16px;border-bottom:1px solid rgba(255,255,255,0.06)}
  .mobile-menu-open .header-nav a{font-size:1rem;padding:8px 0}
  .mobile-menu-open .header-right{display:none}
}
@media (max-width: 768px) {
  .hero{min-height:70vh;text-align:center}
  .hero-content{max-width:100%}
  .hero p{max-width:100%}
  .hero-actions{justify-content:center}
  .hero-stats{justify-content:center;gap:24px;flex-wrap:wrap}
  .hero-stat{text-align:center}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px}
  .footer-brand{grid-column:1 / -1}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .process-steps{grid-template-columns:1fr 1fr}
}
@media (max-width: 520px) {
  .container{padding:0 16px}
  .hero{min-height:60vh}
  .hero-actions{flex-direction:column;width:100%}
  .hero-actions .btn-primary,.hero-actions .btn-secondary{width:100%;justify-content:center}
  .hero-stats{flex-direction:column;gap:16px;align-items:center}
  .feature-grid{grid-template-columns:1fr}
  .category-grid{grid-template-columns:1fr}
  .post-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr 1fr;gap:16px}
  .process-steps{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:20px}
  .footer-bottom{flex-direction:column;text-align:center}
  .btn-primary,.btn-secondary{padding:12px 28px;font-size:0.92rem}
  .cta-section .btn-cta{padding:12px 32px;font-size:0.92rem;width:100%;justify-content:center}
}

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #1e7e34;
            --primary-dark: #145a24;
            --primary-light: #2ea84a;
            --primary-gradient: linear-gradient(145deg, #1e7e34, #2ea84a);
            --secondary: #f5a623;
            --secondary-light: #ffc04d;
            --accent: #1a73e8;
            --bg-main: #f8faf6;
            --bg-card: #ffffff;
            --bg-dark: #0f1a12;
            --bg-dark-secondary: #1a2e20;
            --text-dark: #1a1a2e;
            --text-body: #2d3748;
            --text-light: #718096;
            --text-white: #f0f7f0;
            --border-light: #e8f0e5;
            --border-card: #dce8d8;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 24px;
            --shadow-sm: 0 2px 8px rgba(30,126,52,0.08);
            --shadow-md: 0 8px 28px rgba(30,126,52,0.12);
            --shadow-lg: 0 16px 48px rgba(30,126,52,0.18);
            --shadow-hover: 0 12px 36px rgba(30,126,52,0.22);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --header-h: 72px;
            --spacer-section: 5rem;
        }

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

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

        /* ===== Header & Navigation (Foundation-enhanced) ===== */
        .site-header {
            position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
            background: rgba(255,255,255,0.95); backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            height: var(--header-h);
            box-shadow: 0 2px 20px rgba(30,126,52,0.06);
        }
        .header-inner {
            max-width: var(--max-width); margin: 0 auto; padding: 0 24px;
            display: flex; align-items: center; justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex; align-items: center; gap: 10px;
            font-size: 1.5rem; font-weight: 800; color: var(--primary-dark);
        }
        .logo i { font-size: 1.6rem; color: var(--primary); }
        .logo span { background: var(--primary-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .header-nav {
            display: flex; align-items: center; gap: 8px;
        }
        .header-nav a {
            padding: 8px 18px; border-radius: var(--radius-sm);
            font-weight: 500; color: var(--text-body); font-size: 0.95rem;
            transition: var(--transition); position: relative;
        }
        .header-nav a::after {
            content: ''; position: absolute; bottom: 2px; left: 50%; transform: translateX(-50%) scaleX(0);
            width: 60%; height: 3px; background: var(--primary-gradient); border-radius: 4px;
            transition: var(--transition);
        }
        .header-nav a:hover { color: var(--primary); background: rgba(30,126,52,0.06); }
        .header-nav a:hover::after { transform: translateX(-50%) scaleX(1); }
        .header-nav a.active { color: var(--primary); background: rgba(30,126,52,0.08); }
        .header-nav a.active::after { transform: translateX(-50%) scaleX(1); }
        .header-actions {
            display: flex; align-items: center; gap: 12px;
        }
        .header-actions .search-wrap {
            display: flex; align-items: center; background: var(--bg-main);
            border: 1px solid var(--border-card); border-radius: 40px;
            padding: 0 14px; transition: var(--transition);
        }
        .header-actions .search-wrap:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(30,126,52,0.12); }
        .header-actions .search-wrap input {
            border: none; background: transparent; padding: 8px 6px; width: 140px;
            outline: none; font-size: 0.9rem; color: var(--text-dark);
        }
        .header-actions .search-wrap i { color: var(--text-light); font-size: 0.9rem; }
        .btn-header {
            padding: 8px 22px; border-radius: 40px; font-weight: 600; font-size: 0.9rem;
            background: var(--primary-gradient); color: #fff; border: none;
            transition: var(--transition); cursor: pointer;
        }
        .btn-header:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); color: #fff; }
        .btn-header-outline {
            padding: 8px 20px; border-radius: 40px; font-weight: 600; font-size: 0.9rem;
            background: transparent; color: var(--primary); border: 1.5px solid var(--primary);
            transition: var(--transition); cursor: pointer;
        }
        .btn-header-outline:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
        .mobile-toggle { display: none; font-size: 1.5rem; color: var(--text-dark); cursor: pointer; background: none; border: none; }

        /* ===== Article Page ===== */
        .article-banner {
            background: linear-gradient(135deg, #0f1a12 0%, #1a2e20 50%, #0f1a12 100%);
            padding: 3rem 0 2.5rem; position: relative; overflow: hidden;
            min-height: 260px; display: flex; align-items: center;
        }
        .article-banner::before {
            content: ''; position: absolute; inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.15; mix-blend-mode: overlay;
        }
        .article-banner .container { position: relative; z-index: 2; }
        .article-banner h1 {
            font-size: 2.2rem; color: #fff; max-width: 800px; line-height: 1.3;
            margin-bottom: 0.75rem; text-shadow: 0 2px 12px rgba(0,0,0,0.3);
        }
        .article-meta {
            display: flex; flex-wrap: wrap; gap: 16px 28px; align-items: center;
            color: rgba(255,255,255,0.75); font-size: 0.9rem;
        }
        .article-meta .badge {
            background: var(--secondary); color: #1a1a2e; padding: 3px 14px;
            border-radius: 30px; font-weight: 600; font-size: 0.8rem;
        }
        .article-meta i { margin-right: 6px; }

        .article-main {
            padding: 3rem 0 4rem;
        }
        .article-layout {
            display: grid; grid-template-columns: 1fr 320px; gap: 3rem;
        }
        .article-body {
            background: var(--bg-card); border-radius: var(--radius-md);
            padding: 2.5rem; box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-card);
        }
        .article-body .featured-img {
            width: 100%; border-radius: var(--radius-sm); margin-bottom: 2rem;
            box-shadow: var(--shadow-sm); max-height: 420px; object-fit: cover;
        }
        .article-body .content {
            font-size: 1.05rem; line-height: 1.9; color: var(--text-body);
        }
        .article-body .content p { margin-bottom: 1.4rem; }
        .article-body .content h2 { font-size: 1.5rem; margin: 2rem 0 1rem; color: var(--primary-dark); }
        .article-body .content h3 { font-size: 1.25rem; margin: 1.6rem 0 0.8rem; color: var(--text-dark); }
        .article-body .content ul, .article-body .content ol { margin: 1rem 0 1.4rem 1.5rem; list-style: disc; }
        .article-body .content li { margin-bottom: 0.5rem; }
        .article-body .content a { color: var(--accent); text-decoration: underline; }
        .article-body .content blockquote {
            border-left: 4px solid var(--primary); padding: 1rem 1.5rem; margin: 1.6rem 0;
            background: rgba(30,126,52,0.04); border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-dark); font-style: italic;
        }
        .article-body .content img { border-radius: var(--radius-sm); margin: 1.5rem 0; box-shadow: var(--shadow-sm); }

        .article-tags {
            display: flex; flex-wrap: wrap; gap: 10px; margin-top: 2.5rem; padding-top: 1.8rem;
            border-top: 1px solid var(--border-light);
        }
        .article-tags .tag {
            background: var(--bg-main); color: var(--primary); padding: 4px 16px;
            border-radius: 30px; font-size: 0.85rem; font-weight: 500;
            border: 1px solid var(--border-card); transition: var(--transition);
        }
        .article-tags .tag:hover { background: var(--primary); color: #fff; border-color: var(--primary); }

        /* Sidebar */
        .article-sidebar .side-card {
            background: var(--bg-card); border-radius: var(--radius-md);
            padding: 1.6rem; margin-bottom: 1.8rem;
            box-shadow: var(--shadow-sm); border: 1px solid var(--border-card);
        }
        .article-sidebar .side-card h3 {
            font-size: 1.15rem; margin-bottom: 1.2rem; color: var(--primary-dark);
            display: flex; align-items: center; gap: 8px;
        }
        .article-sidebar .side-card h3 i { color: var(--primary); }
        .side-list a {
            display: flex; align-items: flex-start; gap: 12px; padding: 10px 0;
            border-bottom: 1px solid var(--border-light); transition: var(--transition);
        }
        .side-list a:last-child { border-bottom: none; }
        .side-list a:hover { padding-left: 6px; }
        .side-list img { width: 60px; height: 60px; border-radius: var(--radius-sm); object-fit: cover; flex-shrink: 0; }
        .side-list .side-title { font-size: 0.9rem; font-weight: 600; color: var(--text-dark); line-height: 1.4; }
        .side-list .side-date { font-size: 0.75rem; color: var(--text-light); margin-top: 4px; }

        .side-cta {
            background: var(--primary-gradient); color: #fff; border-radius: var(--radius-md);
            padding: 2rem 1.6rem; text-align: center;
        }
        .side-cta h4 { font-size: 1.2rem; color: #fff; margin-bottom: 0.8rem; }
        .side-cta p { font-size: 0.9rem; opacity: 0.9; margin-bottom: 1.2rem; }
        .side-cta .btn-white {
            background: #fff; color: var(--primary); padding: 10px 28px;
            border-radius: 40px; font-weight: 700; display: inline-block;
            transition: var(--transition);
        }
        .side-cta .btn-white:hover { transform: translateY(-3px); box-shadow: 0 8px 24px rgba(0,0,0,0.2); }

        /* Article Not Found */
        .not-found-wrap {
            text-align: center; padding: 5rem 2rem;
        }
        .not-found-wrap i { font-size: 4rem; color: var(--text-light); margin-bottom: 1.5rem; }
        .not-found-wrap h2 { font-size: 2rem; color: var(--text-dark); margin-bottom: 1rem; }
        .not-found-wrap p { color: var(--text-light); margin-bottom: 2rem; }
        .not-found-wrap .btn-home {
            display: inline-block; padding: 12px 36px; background: var(--primary-gradient);
            color: #fff; border-radius: 40px; font-weight: 600;
        }
        .not-found-wrap .btn-home:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); color: #fff; }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark); color: rgba(255,255,255,0.8); padding: 4rem 0 1.5rem;
        }
        .site-footer .footer-grid {
            display: grid; grid-template-columns: 1.8fr 1fr 1fr 1.2fr; gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .site-footer .footer-brand .logo { color: #fff; margin-bottom: 1rem; }
        .site-footer .footer-brand .logo i { color: var(--primary-light); }
        .site-footer .footer-brand .logo span { -webkit-text-fill-color: #fff; background: none; }
        .site-footer .footer-brand p { font-size: 0.9rem; opacity: 0.7; line-height: 1.6; max-width: 320px; }
        .site-footer .footer-col h4 { color: #fff; font-size: 1rem; margin-bottom: 1.2rem; font-weight: 600; }
        .site-footer .footer-col a {
            display: block; color: rgba(255,255,255,0.65); font-size: 0.9rem;
            padding: 5px 0; transition: var(--transition);
        }
        .site-footer .footer-col a:hover { color: var(--primary-light); padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1); padding-top: 1.5rem;
            display: flex; justify-content: space-between; align-items: center;
            flex-wrap: wrap; gap: 12px; font-size: 0.85rem; opacity: 0.7;
        }
        .footer-bottom .copyright { color: rgba(255,255,255,0.6); }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr; }
            .article-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
            .site-footer .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            :root { --header-h: 64px; --spacer-section: 3rem; }
            .header-nav { display: none; }
            .header-actions .search-wrap input { width: 100px; }
            .mobile-toggle { display: block; }
            .header-nav.mobile-open {
                display: flex; flex-direction: column; position: absolute; top: var(--header-h);
                left: 0; right: 0; background: rgba(255,255,255,0.98); backdrop-filter: blur(16px);
                padding: 1rem 1.5rem; border-bottom: 1px solid var(--border-light);
                box-shadow: var(--shadow-md); gap: 4px;
            }
            .header-nav.mobile-open a { padding: 12px 16px; border-radius: var(--radius-sm); }
            .header-nav.mobile-open a::after { display: none; }
            .article-banner h1 { font-size: 1.6rem; }
            .article-body { padding: 1.5rem; }
            .article-sidebar { grid-template-columns: 1fr; }
            .site-footer .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .header-actions .search-wrap { display: none; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .article-banner h1 { font-size: 1.3rem; }
            .article-meta { font-size: 0.8rem; gap: 10px; }
            .article-body .content { font-size: 0.95rem; }
            .article-body .content h2 { font-size: 1.25rem; }
        }

        /* ===== Utility ===== */
        .text-center { text-align: center; }
        .mt-2 { margin-top: 2rem; }
        .mb-2 { margin-bottom: 2rem; }
        .gap-1 { gap: 1rem; }
        .flex-center { display: flex; align-items: center; justify-content: center; }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #e95a2a;
            --primary-dark: #c9441e;
            --primary-light: #fbe9e3;
            --secondary: #1e2a3a;
            --secondary-light: #2c3e50;
            --accent: #f7c948;
            --bg-body: #f9f7f5;
            --bg-card: #ffffff;
            --bg-dark: #141c27;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-light: #8a8aaa;
            --text-white: #f0f0f5;
            --border: #e4e0dc;
            --radius: 14px;
            --radius-sm: 8px;
            --shadow: 0 8px 28px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 16px 40px rgba(0, 0, 0, 0.10);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
            --header-h: 72px;
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.6;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: 1rem;
        }
        ul {
            list-style: none;
        }

        /* ===== Container ===== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== Typography ===== */
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
        }
        h1 {
            font-size: 2.8rem;
        }
        h2 {
            font-size: 2rem;
            margin-bottom: 0.5rem;
        }
        h3 {
            font-size: 1.4rem;
        }
        h4 {
            font-size: 1.1rem;
        }
        p {
            color: var(--text-secondary);
            margin-bottom: 1rem;
        }
        .section-title {
            text-align: center;
            margin-bottom: 2.5rem;
        }
        .section-title h2 {
            position: relative;
            display: inline-block;
        }
        .section-title h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: var(--primary);
            border-radius: 4px;
            margin: 10px auto 0;
        }
        .section-title p {
            max-width: 600px;
            margin: 0.5rem auto 0;
            color: var(--text-light);
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--header-h);
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            z-index: 1000;
            transition: var(--transition);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.3px;
        }
        .logo i {
            color: var(--primary);
            font-size: 1.6rem;
        }
        .logo span {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .header-nav {
            display: flex;
            align-items: center;
            gap: 32px;
        }
        .header-nav a {
            font-weight: 500;
            color: var(--text-secondary);
            padding: 6px 0;
            position: relative;
            font-size: 0.95rem;
            transition: var(--transition);
        }
        .header-nav a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 0;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
            transition: var(--transition);
        }
        .header-nav a:hover {
            color: var(--primary);
        }
        .header-nav a:hover::after {
            width: 100%;
        }
        .header-nav a.active {
            color: var(--primary);
        }
        .header-nav a.active::after {
            width: 100%;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .header-actions .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-body);
            border-radius: 40px;
            padding: 6px 16px;
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .header-actions .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(233, 90, 42, 0.12);
        }
        .header-actions .search-box input {
            border: none;
            background: transparent;
            outline: none;
            padding: 6px 8px;
            font-size: 0.9rem;
            min-width: 120px;
            color: var(--text-primary);
        }
        .header-actions .search-box input::placeholder {
            color: var(--text-light);
        }
        .header-actions .search-box button {
            background: none;
            border: none;
            color: var(--text-light);
            cursor: pointer;
            padding: 4px;
            font-size: 0.95rem;
            transition: var(--transition);
        }
        .header-actions .search-box button:hover {
            color: var(--primary);
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            padding: 10px 26px;
            border-radius: 40px;
            border: none;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(233, 90, 42, 0.30);
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            color: var(--text-secondary);
            padding: 8px 20px;
            border-radius: 40px;
            border: 1.5px solid var(--border);
            font-weight: 500;
            font-size: 0.9rem;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }

        /* Hamburger */
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
        }
        .hamburger span {
            display: block;
            width: 26px;
            height: 3px;
            background: var(--text-primary);
            border-radius: 4px;
            transition: var(--transition);
        }
        .mobile-nav {
            display: none;
            position: fixed;
            top: var(--header-h);
            left: 0;
            width: 100%;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            padding: 16px 24px;
            z-index: 999;
            flex-direction: column;
            gap: 16px;
        }
        .mobile-nav.open {
            display: flex;
        }
        .mobile-nav a {
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 0;
            border-bottom: 1px solid var(--border);
            font-size: 1.05rem;
        }
        .mobile-nav a.active {
            color: var(--primary);
        }
        .mobile-nav .btn-primary {
            align-self: flex-start;
            margin-top: 8px;
        }

        @media (max-width: 868px) {
            .header-nav {
                display: none;
            }
            .header-actions .search-box {
                display: none;
            }
            .header-actions .btn-outline {
                display: none;
            }
            .hamburger {
                display: flex;
            }
        }

        /* ===== Hero / Banner ===== */
        .category-hero {
            margin-top: var(--header-h);
            padding: 80px 0 60px;
            background: linear-gradient(135deg, #141c27 0%, #1e2a3a 100%);
            position: relative;
            overflow: hidden;
            min-height: 360px;
            display: flex;
            align-items: center;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .category-hero h1 {
            color: var(--text-white);
            font-size: 3rem;
            margin-bottom: 0.75rem;
            letter-spacing: -0.5px;
        }
        .category-hero h1 i {
            color: var(--accent);
            margin-right: 12px;
        }
        .category-hero p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 1.15rem;
            max-width: 640px;
            margin: 0 auto 1.5rem;
        }
        .category-hero .hero-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
        }
        .category-hero .hero-tags span {
            background: rgba(255, 255, 255, 0.10);
            backdrop-filter: blur(4px);
            color: var(--text-white);
            padding: 6px 18px;
            border-radius: 40px;
            font-size: 0.85rem;
            border: 1px solid rgba(255, 255, 255, 0.12);
            font-weight: 400;
        }
        @media (max-width: 768px) {
            .category-hero {
                padding: 60px 0 40px;
                min-height: 280px;
            }
            .category-hero h1 {
                font-size: 2rem;
            }
            .category-hero p {
                font-size: 1rem;
            }
        }

        /* ===== Section Spacing ===== */
        section {
            padding: 64px 0;
        }
        @media (max-width: 768px) {
            section {
                padding: 40px 0;
            }
        }

        /* ===== Card Grid ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }
        .card-grid.cols-3 {
            grid-template-columns: repeat(3, 1fr);
        }
        @media (max-width: 868px) {
            .card-grid.cols-3 {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 540px) {
            .card-grid.cols-3 {
                grid-template-columns: 1fr;
            }
            .card-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== Cards ===== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--border);
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: transparent;
        }
        .card-image {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/9;
            background: var(--bg-body);
        }
        .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .card:hover .card-image img {
            transform: scale(1.05);
        }
        .card-image .badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--primary);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 30px;
            letter-spacing: 0.3px;
        }
        .card-body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-body h3 {
            font-size: 1.15rem;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .card-body h3 a {
            color: inherit;
        }
        .card-body h3 a:hover {
            color: var(--primary);
        }
        .card-body p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            margin-bottom: 12px;
            flex: 1;
        }
        .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.82rem;
            color: var(--text-light);
            border-top: 1px solid var(--border);
            padding-top: 12px;
            margin-top: auto;
        }
        .card-meta span i {
            margin-right: 4px;
        }
        .card-meta .tag {
            background: var(--primary-light);
            color: var(--primary);
            padding: 2px 12px;
            border-radius: 30px;
            font-weight: 500;
            font-size: 0.75rem;
        }

        /* ===== Feature Row ===== */
        .feature-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .feature-row .visual {
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .feature-row .visual img {
            width: 100%;
            display: block;
        }
        .feature-row .content h2 {
            margin-bottom: 1rem;
        }
        .feature-row .content ul {
            margin-top: 1rem;
        }
        .feature-row .content ul li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 8px 0;
            font-size: 0.95rem;
            color: var(--text-secondary);
        }
        .feature-row .content ul li i {
            color: var(--primary);
            font-size: 1.1rem;
            margin-top: 2px;
            min-width: 20px;
        }
        @media (max-width: 768px) {
            .feature-row {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .feature-row.reverse {
                direction: ltr;
            }
            .feature-row.reverse .visual {
                order: -1;
            }
        }

        /* ===== Stats ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }
        .stat-item {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 28px 16px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .stat-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .stat-item .number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.1;
        }
        .stat-item .label {
            font-size: 0.9rem;
            color: var(--text-light);
            margin-top: 6px;
            font-weight: 500;
        }
        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-item .number {
                font-size: 2rem;
            }
        }

        /* ===== Tags / Chips ===== */
        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }
        .tag-list a {
            background: var(--bg-card);
            border: 1px solid var(--border);
            padding: 8px 22px;
            border-radius: 40px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .tag-list a:hover {
            border-color: var(--primary);
            background: var(--primary-light);
            color: var(--primary);
            transform: translateY(-2px);
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary);
        }
        .faq-question {
            padding: 18px 22px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question i {
            transition: var(--transition);
            color: var(--text-light);
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            padding: 0 22px 18px;
            font-size: 0.92rem;
            color: var(--text-secondary);
            display: none;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-block {
            background: linear-gradient(135deg, var(--primary) 0%, #d04a1e 100%);
            border-radius: var(--radius);
            padding: 48px 40px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-block .container {
            position: relative;
            z-index: 2;
        }
        .cta-block h2 {
            color: #fff;
            font-size: 2rem;
            margin-bottom: 0.75rem;
        }
        .cta-block p {
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin: 0 auto 1.5rem;
            font-size: 1.05rem;
        }
        .cta-block .btn-primary {
            background: #fff;
            color: var(--primary);
            font-size: 1rem;
            padding: 14px 36px;
        }
        .cta-block .btn-primary:hover {
            background: var(--accent);
            color: var(--text-primary);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.20);
        }
        @media (max-width: 768px) {
            .cta-block {
                padding: 32px 20px;
            }
            .cta-block h2 {
                font-size: 1.5rem;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 48px 0 24px;
            margin-top: 40px;
        }
        .site-footer .container {
            max-width: var(--max-width);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand .logo {
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand .logo i {
            color: var(--primary);
        }
        .footer-brand .logo span {
            background: linear-gradient(135deg, #fff, var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.55);
            max-width: 320px;
            line-height: 1.7;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            margin-bottom: 14px;
            font-weight: 700;
        }
        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.88rem;
            padding: 4px 0;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--primary);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.40);
        }
        .footer-bottom span i {
            margin-right: 4px;
        }
        @media (max-width: 868px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 540px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: center;
                text-align: center;
            }
        }

        /* ===== Utilities ===== */
        .text-center {
            text-align: center;
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mt-2 {
            margin-top: 2rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .mb-2 {
            margin-bottom: 2rem;
        }
        .gap-1 {
            gap: 1rem;
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            padding: 16px 0 0;
            font-size: 0.85rem;
            color: var(--text-light);
        }
        .breadcrumb a {
            color: var(--text-light);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb span {
            color: var(--text-secondary);
            font-weight: 500;
        }
        .breadcrumb i {
            font-size: 0.7rem;
            color: var(--text-light);
        }

        /* ===== Responsive Extras ===== */
        @media (max-width: 520px) {
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .category-hero h1 {
                font-size: 1.6rem;
            }
            .category-hero p {
                font-size: 0.92rem;
            }
            .card-body {
                padding: 16px;
            }
            .stat-item {
                padding: 20px 12px;
            }
            .stat-item .number {
                font-size: 1.6rem;
            }
            .cta-block h2 {
                font-size: 1.3rem;
            }
            .faq-question {
                font-size: 0.92rem;
                padding: 14px 16px;
            }
            .faq-answer {
                padding: 0 16px 14px;
            }
        }