/* roulang page: index */
:root {
  --primary: #E11D48;
  --primary-dark: #BE123C;
  --primary-light: #FDA4AF;
  --accent: #F59E0B;
  --dark: #0B0F19;
  --dark-2: #111927;
  --dark-3: #1B2537;
  --light: #F4F6FB;
  --light-2: #FFFFFF;
  --text: #111827;
  --text-muted: #6B7280;
  --border: #E5E7EB;
  --border-dark: #26334D;
  --radius-sm: 6px;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 3px rgba(2, 6, 23, 0.06);
  --shadow: 0 4px 20px rgba(2, 6, 23, 0.08);
  --shadow-lg: 0 12px 40px rgba(2, 6, 23, 0.12);
  --transition: all 0.3s ease;
  --font-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: var(--font-base); color: var(--text); background: var(--light); line-height: 1.7; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; }
.container { max-width: 1200px; }

.btn { font-weight: 600; border-radius: 8px; padding: 10px 24px; border: 2px solid transparent; transition: var(--transition); }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover, .btn-primary:focus { background: var(--primary-dark); border-color: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(225, 29, 72, 0.35); }
.btn-outline-light { border-color: rgba(255,255,255,0.6); color: #fff; background: transparent; }
.btn-outline-light:hover { background: rgba(255,255,255,0.1); border-color: #fff; color: #fff; transform: translateY(-2px); }
.btn-accent { background: var(--accent); border-color: var(--accent); color: #0B0F19; }
.btn-accent:hover { background: #D97706; border-color: #D97706; color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(245, 158, 11, 0.35); }

.section { padding: 80px 0; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-tag { display: inline-flex; align-items: center; gap: 6px; background: rgba(225, 29, 72, 0.08); color: var(--primary); font-size: 13px; font-weight: 600; padding: 6px 16px; border-radius: 100px; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 14px; }
.section-title { font-size: clamp(26px, 3vw, 38px); font-weight: 800; color: var(--dark); line-height: 1.3; margin-bottom: 12px; letter-spacing: -0.5px; }
.section-sub { font-size: 16px; color: var(--text-muted); line-height: 1.7; }

/* ===== Top Status ===== */
.top-status { background: var(--dark); color: rgba(255,255,255,0.8); font-size: 13px; padding: 6px 0; border-bottom: 1px solid var(--border-dark); }
.top-status .container { display: flex; justify-content: space-between; align-items: center; gap: 10px; flex-wrap: wrap; }
.top-status .status-item { display: inline-flex; align-items: center; gap: 6px; }
.top-status .status-dot { width: 6px; height: 6px; background: #22C55E; border-radius: 50%; display: inline-block; animation: pulse 2s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }

/* ===== Header / Nav ===== */
.site-header { position: sticky; top: 0; z-index: 1050; background: rgba(11, 15, 25, 0.96); backdrop-filter: blur(16px); border-bottom: 1px solid var(--border-dark); }
.site-header .navbar { padding: 12px 0; }
.navbar-brand { display: flex; align-items: center; gap: 10px; padding: 0; margin: 0; }
.brand-mark { width: 40px; height: 40px; background: linear-gradient(135deg, var(--primary), #7C2D12); border-radius: 9px; display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 17px; color: #fff; box-shadow: 0 4px 14px rgba(225, 29, 72, 0.4); flex-shrink: 0; }
.brand-text { font-size: 19px; font-weight: 800; color: #fff; letter-spacing: 0.5px; white-space: nowrap; }
.navbar .navbar-nav { gap: 4px; align-items: center; }
.navbar .nav-link { color: rgba(255, 255, 255, 0.75); font-weight: 500; font-size: 15px; padding: 8px 20px; border-radius: 100px; margin: 0 2px; transition: var(--transition); border: 1px solid transparent; }
.navbar .nav-link:hover, .navbar .nav-link:focus { color: #fff; background: rgba(225, 29, 72, 0.15); border-color: rgba(225, 29, 72, 0.3); }
.navbar .nav-link.active { color: #fff; background: var(--primary); border-color: var(--primary); box-shadow: 0 4px 14px rgba(225, 29, 72, 0.4); }
.navbar-toggler { border-color: rgba(255,255,255,0.3); padding: 4px 10px; }
.navbar-toggler:focus { box-shadow: none; border-color: var(--primary); }
.navbar-toggler-icon { background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255,255,255,0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e"); }
.nav-cta { background: var(--primary); color: #fff !important; border-radius: 100px; padding: 9px 24px !important; font-weight: 600; display: inline-flex; align-items: center; gap: 6px; }
.nav-cta:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(225, 29, 72, 0.4); }

/* ===== Hero ===== */
.hero { position: relative; background: linear-gradient(135deg, rgba(11, 15, 25, 0.92) 0%, rgba(11, 15, 25, 0.78) 100%), url('/assets/images/backpic/back-1.png') center/cover no-repeat; padding: 120px 0 100px; color: #fff; overflow: hidden; }
.hero::before { content: ''; position: absolute; top: -20%; right: -10%; width: 480px; height: 480px; background: radial-gradient(circle, rgba(225, 29, 72, 0.25) 0%, transparent 70%); border-radius: 50%; pointer-events: none; }
.hero-content { position: relative; z-index: 2; }
.hero-tag { display: inline-flex; align-items: center; gap: 8px; background: rgba(225, 29, 72, 0.15); border: 1px solid rgba(225, 29, 72, 0.4); color: var(--primary-light); font-size: 13px; font-weight: 600; padding: 7px 18px; border-radius: 100px; margin-bottom: 22px; letter-spacing: 1px; }
.hero-title { font-size: clamp(32px, 5vw, 56px); font-weight: 900; line-height: 1.15; letter-spacing: -1px; margin-bottom: 18px; }
.hero-title span { color: var(--primary); position: relative; }
.hero-title span::after { content: ''; position: absolute; bottom: 4px; left: 0; width: 100%; height: 8px; background: rgba(225, 29, 72, 0.3); border-radius: 4px; z-index: -1; }
.hero-sub { font-size: clamp(16px, 1.5vw, 18px); color: rgba(255,255,255,0.8); max-width: 640px; margin-bottom: 36px; line-height: 1.8; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 48px; }
.hero-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; max-width: 760px; border-top: 1px solid rgba(255,255,255,0.12); padding-top: 32px; }
.hero-stat-item { display: flex; flex-direction: column; gap: 4px; }
.hero-stat-num { font-size: 28px; font-weight: 800; color: #fff; }
.hero-stat-num i { color: var(--primary); font-size: 20px; margin-right: 4px; }
.hero-stat-label { font-size: 13px; color: rgba(255,255,255,0.6); }

/* ===== Stats Strip ===== */
.stats-strip { background: var(--dark-2); border-bottom: 1px solid var(--border-dark); padding: 24px 0; }
.stats-strip .stat-item { display: flex; align-items: center; gap: 14px; }
.stats-strip .stat-icon { width: 44px; height: 44px; background: rgba(225, 29, 72, 0.15); border-radius: 10px; display: flex; align-items: center; justify-content: center; color: var(--primary); font-size: 18px; flex-shrink: 0; }
.stats-strip .stat-num { font-size: 22px; font-weight: 800; color: #fff; line-height: 1.1; }
.stats-strip .stat-label { font-size: 13px; color: rgba(255,255,255,0.55); }

/* ===== Feature Cards ===== */
.feature-card { background: #fff; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow); border: 1px solid var(--border); height: 100%; transition: var(--transition); }
.feature-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.feature-card .feature-img { position: relative; overflow: hidden; height: 180px; }
.feature-card .feature-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.feature-card:hover .feature-img img { transform: scale(1.05); }
.feature-card .feature-img::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to top, rgba(11, 15, 25, 0.4), transparent); }
.feature-card .feature-img .feature-tag { position: absolute; top: 14px; left: 14px; z-index: 2; background: rgba(11, 15, 25, 0.85); color: #fff; font-size: 12px; font-weight: 600; padding: 4px 14px; border-radius: 100px; backdrop-filter: blur(4px); }
.feature-body { padding: 24px; }
.feature-body .feature-title { font-size: 19px; font-weight: 700; color: var(--dark); margin-bottom: 10px; }
.feature-body .feature-text { font-size: 14px; color: var(--text-muted); line-height: 1.7; margin-bottom: 16px; }
.feature-body .feature-link { font-size: 14px; font-weight: 600; color: var(--primary); display: inline-flex; align-items: center; gap: 6px; }
.feature-body .feature-link:hover { gap: 10px; color: var(--primary-dark); }

/* ===== Category Feature ===== */
.category-banner { position: relative; background: linear-gradient(135deg, rgba(11, 15, 25, 0.9), rgba(17, 25, 39, 0.8)), url('/assets/images/backpic/back-2.png') center/cover no-repeat; border-radius: var(--radius-lg); padding: 48px; color: #fff; overflow: hidden; }
.category-banner .category-tag { display: inline-flex; align-items: center; gap: 6px; background: rgba(225, 29, 72, 0.15); border: 1px solid rgba(225, 29, 72, 0.4); color: var(--primary-light); font-size: 13px; font-weight: 600; padding: 5px 14px; border-radius: 100px; margin-bottom: 12px; }
.category-banner h3 { font-size: 30px; font-weight: 800; margin-bottom: 8px; }
.category-banner p { color: rgba(255,255,255,0.7); font-size: 15px; max-width: 560px; line-height: 1.7; margin-bottom: 20px; }
.category-banner .btn { margin-right: 10px; }

/* ===== Post Cards ===== */
.post-card { background: #fff; border-radius: var(--radius); border: 1px solid var(--border); box-shadow: var(--shadow-sm); padding: 24px; height: 100%; transition: var(--transition); display: flex; flex-direction: column; }
.post-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: rgba(225, 29, 72, 0.3); }
.post-badge { display: inline-flex; align-items: center; background: rgba(225, 29, 72, 0.08); color: var(--primary); font-size: 12px; font-weight: 600; padding: 4px 12px; border-radius: 6px; margin-bottom: 14px; align-self: flex-start; }
.post-card h3 { font-size: 18px; font-weight: 700; color: var(--dark); line-height: 1.4; margin-bottom: 10px; }
.post-card h3 a { color: inherit; }
.post-card h3 a:hover { color: var(--primary); }
.post-excerpt { font-size: 14px; color: var(--text-muted); line-height: 1.7; flex-grow: 1; margin-bottom: 16px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.post-meta { display: flex; align-items: center; gap: 16px; font-size: 13px; color: #9CA3AF; border-top: 1px solid #F3F4F6; padding-top: 14px; }
.empty-tip { text-align: center; padding: 60px 20px; background: #fff; border-radius: var(--radius); border: 1px dashed var(--border); color: var(--text-muted); font-size: 16px; }

/* ===== Process ===== */
.process-section { background: var(--dark); color: #fff; }
.process-section .section-title { color: #fff; }
.process-section .section-sub { color: rgba(255,255,255,0.6); }
.process-step { position: relative; text-align: center; padding: 32px 20px; background: var(--dark-2); border: 1px solid var(--border-dark); border-radius: var(--radius); height: 100%; transition: var(--transition); }
.process-step:hover { border-color: rgba(225, 29, 72, 0.5); transform: translateY(-6px); }
.step-num { width: 52px; height: 52px; background: linear-gradient(135deg, var(--primary), #7C2D12); border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 20px; font-weight: 800; color: #fff; margin: 0 auto 18px; box-shadow: 0 6px 20px rgba(225, 29, 72, 0.35); }
.step-title { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.step-text { font-size: 14px; color: rgba(255,255,255,0.6); line-height: 1.6; }
.step-line { position: absolute; top: 55px; right: -25px; width: 50px; height: 2px; background: linear-gradient(90deg, var(--primary), transparent); display: none; }
.col-lg-3:not(:last-child) .step-line { display: block; }

/* ===== FAQ ===== */
.faq-item { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 0; margin-bottom: 14px; overflow: hidden; transition: var(--transition); }
.faq-item:hover { border-color: rgba(225, 29, 72, 0.3); }
.faq-question { padding: 20px 24px; font-size: 16px; font-weight: 600; color: var(--dark); cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.faq-question i { color: var(--primary); transition: var(--transition); }
.faq-answer { padding: 0 24px 20px; font-size: 14px; color: var(--text-muted); line-height: 1.7; display: none; }
.faq-item.open .faq-answer { display: block; }
.faq-item.open .faq-question i { transform: rotate(180deg); }

/* ===== CTA ===== */
.cta-section { background: linear-gradient(135deg, var(--dark) 0%, var(--dark-3) 100%); }
.cta-box { background: linear-gradient(135deg, rgba(225, 29, 72, 0.15), rgba(245, 158, 11, 0.08)), url('/assets/images/backpic/back-3.png') center/cover no-repeat; border: 1px solid rgba(225, 29, 72, 0.3); border-radius: var(--radius-lg); padding: 64px 48px; text-align: center; color: #fff; }
.cta-title { font-size: clamp(24px, 3vw, 36px); font-weight: 800; margin-bottom: 12px; }
.cta-text { font-size: 16px; color: rgba(255,255,255,0.7); max-width: 560px; margin: 0 auto 28px; }

/* ===== Footer ===== */
.site-footer { background: #070B12; color: rgba(255,255,255,0.6); padding: 64px 0 0; }
.footer-widget { margin-bottom: 32px; }
.footer-widget h5 { color: #fff; font-size: 16px; font-weight: 700; margin-bottom: 18px; position: relative; padding-bottom: 10px; }
.footer-widget h5::after { content: ''; position: absolute; bottom: 0; left: 0; width: 28px; height: 2px; background: var(--primary); border-radius: 2px; }
.footer-widget p { font-size: 14px; line-height: 1.7; }
.footer-widget ul li { margin-bottom: 8px; }
.footer-widget ul li a { font-size: 14px; color: rgba(255,255,255,0.55); display: inline-flex; align-items: center; gap: 6px; }
.footer-widget ul li a:hover { color: var(--primary-light); padding-left: 4px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding: 20px 0; text-align: center; font-size: 13px; color: rgba(255,255,255,0.4); margin-top: 24px; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .section { padding: 64px 0; }
  .hero { padding: 90px 0 70px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .category-banner { padding: 36px; }
  .step-line { display: none !important; }
}
@media (max-width: 768px) {
  .navbar .navbar-collapse { background: var(--dark-2); padding: 16px; border-radius: 12px; margin-top: 12px; border: 1px solid var(--border-dark); }
  .navbar .navbar-nav { align-items: stretch; gap: 4px; }
  .navbar .nav-link { display: block; padding: 10px 16px; margin: 0; }
  .navbar .nav-cta { margin-top: 8px; justify-content: center; }
  .hero { padding: 64px 0 56px; }
  .hero-stats { gap: 12px; }
  .hero-stat-num { font-size: 22px; }
  .stats-strip .stat-item { justify-content: center; }
  .section-title { font-size: 26px; }
  .category-banner { padding: 28px; }
  .cta-box { padding: 40px 24px; }
}
@media (max-width: 520px) {
  .section { padding: 48px 0; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .hero-stats { grid-template-columns: 1fr 1fr; gap: 10px; }
  .brand-text { font-size: 16px; }
  .brand-mark { width: 34px; height: 34px; font-size: 14px; }
  .category-banner h3 { font-size: 22px; }
  .faq-question { padding: 16px 18px; font-size: 15px; }
}

/* roulang page: category1 */
:root {
            --primary: #dc2626;
            --primary-dark: #b91c1c;
            --primary-light: #ef4444;
            --accent: #f59e0b;
            --dark: #0f172a;
            --dark-2: #1e293b;
            --dark-3: #334155;
            --light-bg: #f8fafc;
            --light-gray: #f1f5f9;
            --text-main: #1e293b;
            --text-muted: #64748b;
            --text-light: #94a3b8;
            --border: #e2e8f0;
            --white: #ffffff;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 8px;
            --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.08);
            --shadow-md: 0 8px 30px rgba(15, 23, 42, 0.1);
            --shadow-lg: 0 20px 60px rgba(15, 23, 42, 0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--light-bg);
            color: var(--text-main);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
        }

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

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

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

        .container {
            max-width: 1280px;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (min-width: 1400px) {
            .container {
                max-width: 1320px;
            }
        }

        .site-header {
            background: rgba(15, 23, 42, 0.95);
            backdrop-filter: blur(12px);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
        }

        .site-header .navbar {
            padding: 12px 0;
        }

        .site-header .navbar-brand {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            padding: 0;
            margin-right: 0;
        }

        .brand-mark {
            width: 44px;
            height: 44px;
            background: linear-gradient(135deg, var(--primary-light), var(--primary-dark));
            border-radius: 12px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 22px;
            font-weight: 800;
            font-style: italic;
            box-shadow: 0 4px 15px rgba(220, 38, 38, 0.4);
            letter-spacing: -1px;
            flex-shrink: 0;
        }

        .brand-text {
            font-weight: 800;
            font-size: 18px;
            color: #fff;
            letter-spacing: 0.3px;
            white-space: nowrap;
        }

        @media (max-width: 768px) {
            .brand-text {
                font-size: 15px;
            }
        }

        .site-header .navbar-nav {
            gap: 8px;
            margin: 0 auto;
        }

        .site-header .nav-link {
            color: rgba(255, 255, 255, 0.7);
            font-weight: 500;
            font-size: 15px;
            padding: 8px 20px;
            border-radius: 50px;
            transition: var(--transition);
            position: relative;
        }

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

        .site-header .nav-link.active {
            color: #fff;
            background: rgba(220, 38, 38, 0.25);
            border: 1px solid rgba(220, 38, 38, 0.4);
            box-shadow: 0 0 20px rgba(220, 38, 38, 0.15);
        }

        .site-header .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--primary-light);
        }

        .site-header .nav-cta {
            background: linear-gradient(135deg, var(--primary-light), var(--primary-dark));
            color: #fff;
            border: none;
            border-radius: 50px;
            padding: 9px 24px;
            font-weight: 600;
            font-size: 14px;
            transition: var(--transition);
            box-shadow: 0 4px 20px rgba(220, 38, 38, 0.3);
            white-space: nowrap;
        }

        .site-header .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(220, 38, 38, 0.45);
            color: #fff;
        }

        .site-header .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 6px 10px;
            border-radius: 8px;
        }

        .site-header .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.3);
        }

        .site-header .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255, 255, 255, 0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        @media (max-width: 991px) {
            .site-header .navbar-collapse {
                padding: 16px 0;
            }
            .site-header .navbar-nav {
                gap: 4px;
            }
            .site-header .nav-link {
                padding: 10px 16px;
                border-radius: 10px;
            }
            .site-header .nav-cta {
                margin-left: 0;
                margin-top: 12px;
                display: inline-block;
                text-align: center;
            }
        }

        .page-banner {
            position: relative;
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #dc2626 130%);
            padding: 100px 0 80px;
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 400px;
            height: 400px;
            background: url('/assets/images/backpic/back-2.png') no-repeat center center/cover;
            opacity: 0.12;
            clip-path: polygon(0 0, 100% 0, 100% 100%);
        }

        .page-banner::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: 10%;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: var(--primary);
            filter: blur(100px);
            opacity: 0.25;
        }

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

        .page-banner .banner-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(220, 38, 38, 0.2);
            border: 1px solid rgba(220, 38, 38, 0.4);
            padding: 6px 18px;
            border-radius: 50px;
            color: #fff;
            font-size: 14px;
            font-weight: 500;
            margin-bottom: 24px;
            letter-spacing: 0.5px;
        }

        .page-banner h1 {
            color: #fff;
            font-size: 46px;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 18px;
            letter-spacing: -1px;
        }

        .page-banner h1 span {
            color: var(--primary-light);
            position: relative;
        }

        .page-banner .lead {
            color: rgba(255, 255, 255, 0.8);
            font-size: 17px;
            max-width: 640px;
            margin-bottom: 32px;
        }

        .banner-stats {
            display: flex;
            gap: 40px;
            flex-wrap: wrap;
            margin-top: 40px;
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.15);
        }

        .banner-stats .stat-item {
            display: flex;
            flex-direction: column;
        }

        .banner-stats .stat-num {
            font-size: 32px;
            font-weight: 800;
            color: #fff;
            line-height: 1;
        }

        .banner-stats .stat-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 6px;
            letter-spacing: 1px;
        }

        @media (max-width: 768px) {
            .page-banner {
                padding: 70px 0 50px;
            }
            .page-banner h1 {
                font-size: 30px;
            }
            .banner-stats {
                gap: 24px;
            }
            .banner-stats .stat-num {
                font-size: 24px;
            }
        }

        .breadcrumb-bar {
            background: var(--white);
            border-bottom: 1px solid var(--border);
            padding: 12px 0;
            font-size: 14px;
        }

        .breadcrumb-bar .breadcrumb {
            margin-bottom: 0;
            line-height: 1.4;
        }

        .breadcrumb-bar .breadcrumb-item a {
            color: var(--text-muted);
        }

        .breadcrumb-bar .breadcrumb-item.active {
            color: var(--primary);
            font-weight: 500;
        }

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

        @media (max-width: 768px) {
            .section-padding {
                padding: 60px 0;
            }
        }

        .section-title-wrap {
            margin-bottom: 48px;
        }

        .section-title-wrap .section-label {
            color: var(--primary);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 2px;
            text-transform: uppercase;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }

        .section-title-wrap .section-label::before {
            content: '';
            width: 30px;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 3px;
        }

        .section-title-wrap h2 {
            font-size: 34px;
            font-weight: 800;
            color: var(--dark);
            letter-spacing: -0.5px;
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .section-title-wrap p {
            color: var(--text-muted);
            font-size: 16px;
            max-width: 560px;
        }

        @media (max-width: 768px) {
            .section-title-wrap h2 {
                font-size: 26px;
            }
        }

        .guide-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            padding: 36px 30px;
            height: 100%;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .guide-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            transform: scaleX(0);
            transform-origin: left;
            transition: var(--transition);
        }

        .guide-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(220, 38, 38, 0.2);
        }

        .guide-card:hover::before {
            transform: scaleX(1);
        }

        .guide-card .card-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(220, 38, 38, 0.1), rgba(220, 38, 38, 0.04));
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--primary);
            margin-bottom: 20px;
        }

        .guide-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 12px;
        }

        .guide-card p {
            color: var(--text-muted);
            font-size: 14.5px;
            line-height: 1.8;
            margin-bottom: 0;
        }

        .steps-section {
            background: var(--dark);
            position: relative;
            overflow: hidden;
        }

        .steps-section::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 400px;
            height: 400px;
            background: url('/assets/images/backpic/back-1.png') no-repeat center center/cover;
            opacity: 0.08;
            border-radius: 0 0 0 40px;
        }

        .steps-section .section-title-wrap h2 {
            color: #fff;
        }

        .steps-section .section-title-wrap p {
            color: rgba(255, 255, 255, 0.7);
        }

        .steps-section .section-label {
            color: var(--accent);
        }

        .step-item {
            position: relative;
            padding: 30px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            height: 100%;
            backdrop-filter: blur(8px);
            transition: var(--transition);
        }

        .step-item:hover {
            background: rgba(255, 255, 255, 0.07);
            border-color: rgba(220, 38, 38, 0.5);
            transform: translateY(-4px);
        }

        .step-num {
            font-size: 48px;
            font-weight: 900;
            color: var(--primary);
            opacity: 0.9;
            line-height: 1;
            margin-bottom: 16px;
            -webkit-text-stroke: 1px rgba(220, 38, 38, 0.3);
        }

        .step-item h3 {
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .step-item p {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 0;
        }

        .feature-box {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            height: 100%;
            transition: var(--transition);
        }

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

        .feature-box .feature-img {
            height: 200px;
            overflow: hidden;
            position: relative;
        }

        .feature-box .feature-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .feature-box:hover .feature-img img {
            transform: scale(1.05);
        }

        .feature-box .feature-img::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(to top, rgba(15, 23, 42, 0.3), transparent);
        }

        .feature-box .feature-tag {
            position: absolute;
            bottom: 14px;
            left: 16px;
            z-index: 2;
            background: rgba(220, 38, 38, 0.9);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 50px;
            backdrop-filter: blur(8px);
        }

        .feature-box .feature-body {
            padding: 22px 20px;
        }

        .feature-box .feature-body h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 10px;
        }

        .feature-box .feature-body p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 0;
        }

        .data-panel {
            background: var(--dark-2);
            border-radius: var(--radius-lg);
            padding: 36px;
            position: relative;
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        .data-panel::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 100%;
            height: 100%;
            background: url('/assets/images/backpic/back-3.png') no-repeat center center/cover;
            opacity: 0.1;
            mix-blend-mode: overlay;
        }

        .data-panel .panel-header {
            position: relative;
            z-index: 2;
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 30px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.15);
            padding-bottom: 20px;
        }

        .data-panel .panel-header h3 {
            color: #fff;
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 0;
        }

        .data-panel .panel-header .status-badge {
            background: rgba(220, 38, 38, 0.3);
            border: 1px solid rgba(220, 38, 38, 0.5);
            color: #fff;
            font-size: 12px;
            padding: 4px 14px;
            border-radius: 50px;
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .data-panel .panel-header .status-badge::before {
            content: '';
            width: 8px;
            height: 8px;
            background: var(--accent);
            border-radius: 50%;
            animation: pulse-anim 1.5s infinite;
        }

        @keyframes pulse-anim {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(0.8);
            }
        }

        .data-list {
            position: relative;
            z-index: 2;
            margin: 0;
            padding: 0;
            list-style: none;
        }

        .data-list li {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 14px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            color: rgba(255, 255, 255, 0.8);
            font-size: 15px;
        }

        .data-list li:last-child {
            border-bottom: none;
        }

        .data-list li .data-val {
            color: #fff;
            font-weight: 700;
        }

        .data-list li .data-bar {
            flex: 1;
            margin: 0 16px;
            height: 6px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 6px;
            overflow: hidden;
        }

        .data-list li .data-bar span {
            display: block;
            height: 100%;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 6px;
        }

        .tips-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 20px;
        }

        .tip-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px;
            display: flex;
            gap: 16px;
            align-items: flex-start;
            transition: var(--transition);
        }

        .tip-card:hover {
            border-color: rgba(220, 38, 38, 0.25);
            box-shadow: var(--shadow-sm);
        }

        .tip-card .tip-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            background: rgba(220, 38, 38, 0.1);
            color: var(--primary);
            flex-shrink: 0;
        }

        .tip-card .tip-content h3 {
            font-size: 15px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 6px;
        }

        .tip-card .tip-content p {
            font-size: 13.5px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 0;
        }

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

        .accordion-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-md) !important;
            margin-bottom: 16px;
            overflow: hidden;
            background: var(--white);
        }

        .accordion-button {
            font-weight: 600;
            font-size: 15.5px;
            color: var(--dark);
            padding: 18px 22px;
            background: var(--white);
            border: none;
        }

        .accordion-button:not(.collapsed) {
            color: var(--primary);
            background: rgba(220, 38, 38, 0.04);
            box-shadow: none;
        }

        .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.15);
            border-radius: var(--radius-md);
            border-color: transparent;
            outline: none;
        }

        .accordion-button::after {
            background-size: 16px;
            filter: hue-rotate(0deg) saturate(3);
        }

        .accordion-body {
            padding: 0 22px 20px;
            color: var(--text-muted);
            font-size: 14.5px;
            line-height: 1.8;
        }

        .cta-section {
            background: linear-gradient(135deg, #0f172a, #1e293b 55%, #dc2626 160%);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('/assets/images/backpic/back-1.png') no-repeat bottom right/cover;
            opacity: 0.07;
        }

        .cta-section h2 {
            color: #fff;
            font-size: 36px;
            font-weight: 800;
            letter-spacing: -0.5px;
            position: relative;
            z-index: 2;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 17px;
            max-width: 600px;
            margin: 16px auto 36px;
            position: relative;
            z-index: 2;
        }

        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: linear-gradient(135deg, var(--primary-light), var(--primary-dark));
            color: #fff;
            border: none;
            border-radius: 50px;
            padding: 16px 42px;
            font-size: 16px;
            font-weight: 700;
            transition: var(--transition);
            box-shadow: 0 8px 30px rgba(220, 38, 38, 0.4);
            position: relative;
            z-index: 2;
        }

        .cta-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(220, 38, 38, 0.55);
            color: #fff;
        }

        @media (max-width: 768px) {
            .cta-section h2 {
                font-size: 26px;
            }
        }

        .site-footer {
            background: #0a0f1c;
            color: rgba(255, 255, 255, 0.7);
            padding-top: 60px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .site-footer .footer-widget {
            margin-bottom: 30px;
        }

        .site-footer .navbar-brand {
            padding: 0;
            margin-bottom: 16px;
        }

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

        .site-footer p {
            font-size: 14px;
            line-height: 1.8;
        }

        .site-footer h5 {
            color: #fff;
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }

        .site-footer h5::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 24px;
            height: 3px;
            background: var(--primary);
            border-radius: 3px;
        }

        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .site-footer ul li {
            margin-bottom: 10px;
        }

        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            transition: var(--transition);
        }

        .site-footer ul li a:hover {
            color: #fff;
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 22px 0;
            text-align: center;
            margin-top: 20px;
        }

        .footer-bottom p {
            font-size: 13.5px;
            color: rgba(255, 255, 255, 0.4);
        }

        @media (max-width: 768px) {
            .site-footer .row>div {
                margin-bottom: 10px;
            }
        }

/* roulang page: article */
:root {
    --primary: #e63946;
    --primary-dark: #c1121f;
    --primary-light: #ff6b6b;
    --dark: #0f172a;
    --dark-2: #1e293b;
    --body-bg: #f1f5f9;
    --surface: #ffffff;
    --text: #0f172a;
    --muted: #64748b;
    --border: #e2e8f0;
    --accent: #fbbf24;
    --radius: 16px;
    --radius-sm: 10px;
    --shadow: 0 8px 30px rgba(15, 23, 42, 0.08);
    --shadow-lg: 0 20px 50px rgba(15, 23, 42, 0.14);
    --transition: all .25s ease;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px; line-height: 1.7; color: var(--text); background: var(--body-bg);
    -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary); }
img { max-width: 100%; height: auto; }
ul { list-style: none; }
.container { max-width: 1200px; }
h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.35; color: var(--dark); }
p { margin-bottom: 0; }
:focus-visible { outline: 3px solid rgba(230, 57, 70, .45); outline-offset: 2px; border-radius: 4px; }

.btn {
    border-radius: var(--radius-sm);
    padding: .6rem 1.5rem;
    font-weight: 600;
    transition: var(--transition);
    border: 2px solid transparent;
}
.btn-brand {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
    box-shadow: 0 6px 20px rgba(230, 57, 70, .3);
}
.btn-brand:hover { background: var(--primary-dark); border-color: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 10px 28px rgba(230, 57, 70, .4); }
.btn-outline-brand { border-color: var(--primary); color: var(--primary); background: transparent; }
.btn-outline-brand:hover { background: var(--primary); color: #fff; }
.btn-light-brand { background: #fff; color: var(--primary); border-color: #fff; box-shadow: 0 4px 15px rgba(255,255,255,.25); }
.btn-light-brand:hover { background: #f8fafc; color: var(--primary-dark); transform: translateY(-2px); }
.btn-lg { padding: .8rem 2rem; border-radius: 14px; font-size: 1rem; }
.btn:focus { box-shadow: 0 0 0 .25rem rgba(230, 57, 70, .25); }

.badge-cat {
    display: inline-block;
    background: rgba(230, 57, 70, .1);
    color: var(--primary-dark);
    font-size: .78rem;
    font-weight: 600;
    padding: .35rem .9rem;
    border-radius: 50px;
    border: 1px solid rgba(230, 57, 70, .2);
}

/* ===== Header ===== */
.site-header {
    position: sticky; top: 0; z-index: 1030;
    background: rgba(255, 255, 255, .92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(226, 232, 240, .7);
    box-shadow: 0 4px 20px rgba(15, 23, 42, .04);
}
.site-header .navbar { padding: .65rem 0; }
.navbar-brand { display: flex; align-items: center; gap: .6rem; padding: 0; }
.brand-mark {
    display: inline-flex; align-items: center; justify-content: center;
    width: 40px; height: 40px; border-radius: 10px;
    background: var(--primary);
    color: #fff !important;
    font-weight: 800; font-size: 1.25rem; letter-spacing: -.5px;
    box-shadow: 0 4px 14px rgba(230, 57, 70, .35);
    flex-shrink: 0;
}
.brand-text { font-size: 1.2rem; font-weight: 800; color: var(--dark); letter-spacing: -.3px; }
.site-header .navbar-nav .nav-link {
    font-weight: 500; color: var(--dark);
    padding: .5rem 1.1rem !important;
    border-radius: 50px;
    font-size: .95rem;
    position: relative;
    margin: 0 .1rem;
}
.site-header .navbar-nav .nav-link:hover { color: var(--primary); background: rgba(230, 57, 70, .06); }
.site-header .navbar-nav .nav-link.active { color: var(--primary); background: rgba(230, 57, 70, .1); font-weight: 600; }
.nav-cta {
    background: var(--dark);
    color: #fff;
    border-radius: 50px;
    padding: .5rem 1.4rem;
    font-size: .92rem;
    font-weight: 600;
    border: none;
    box-shadow: 0 4px 15px rgba(15, 23, 42, .2);
}
.nav-cta:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
.navbar-toggler { border: none; border-radius: 10px; padding: .4rem .65rem; }
.navbar-toggler:focus { box-shadow: 0 0 0 .2rem rgba(230, 57, 70, .2); }
.navbar-toggler-icon { background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(15,23,42,.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2.5' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e"); }

/* ===== Page Banner ===== */
.page-banner {
    position: relative;
    padding: 4.5rem 0 3.8rem;
    background: var(--dark) url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
    overflow: hidden;
    color: #fff;
}
.page-banner::before {
    content: '';
    position: absolute; inset: 0;
    background: linear-gradient(100deg, rgba(15, 23, 42, .88) 15%, rgba(15, 23, 42, .55) 55%, rgba(230, 57, 70, .25) 100%);
}
.page-banner .container { position: relative; z-index: 2; }
.breadcrumb-nav { display: flex; gap: .4rem; align-items: center; font-size: .88rem; margin-bottom: .9rem; color: rgba(255,255,255,.75); }
.breadcrumb-nav a { color: rgba(255,255,255,.75); }
.breadcrumb-nav a:hover { color: #fff; }
.breadcrumb-nav .sep { opacity: .5; }
.banner-sub { display: inline-block; background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.2); color: #fff; padding: .3rem 1rem; border-radius: 50px; font-size: .8rem; font-weight: 600; letter-spacing: .5px; margin-bottom: .8rem; }
.page-banner h1 { color: #fff; font-size: 2rem; max-width: 720px; line-height: 1.4; margin: 0; text-shadow: 0 2px 20px rgba(0,0,0,.3); }

/* ===== Article Main ===== */
.article-main { padding: 3.5rem 0 2.5rem; }
.article-detail {
    background: var(--surface);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    padding: 2.5rem 2.5rem 2rem;
    height: 100%;
}
.article-meta { display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; margin-bottom: 1rem; }
.article-date { color: var(--muted); font-size: .88rem; }
.article-title { font-size: 1.85rem; font-weight: 800; line-height: 1.35; color: var(--dark); margin-bottom: 1.2rem; }
.article-divider { height: 4px; width: 64px; border-radius: 100px; background: linear-gradient(90deg, var(--primary), var(--accent)); margin-bottom: 1.8rem; }
.article-cover { border-radius: var(--radius); overflow: hidden; margin-bottom: 1.8rem; box-shadow: var(--shadow); }
.article-cover img { display: block; width: 100%; }

.cms-content { font-size: 1.02rem; line-height: 1.9; color: #334155; }
.cms-content p { margin-bottom: 1.3rem; }
.cms-content h2, .cms-content h3, .cms-content h4 { margin-top: 1.8rem; margin-bottom: .8rem; color: var(--dark); font-weight: 700; }
.cms-content h2 { font-size: 1.4rem; padding-left: .8rem; border-left: 4px solid var(--primary); }
.cms-content h3 { font-size: 1.2rem; }
.cms-content ul { margin-bottom: 1.3rem; padding-left: 0; }
.cms-content ul li { position: relative; padding-left: 1.5rem; margin-bottom: .45rem; }
.cms-content ul li::before { content: ''; position: absolute; left: .25rem; top: .68em; width: 8px; height: 8px; border-radius: 2px; background: var(--primary); transform: rotate(45deg); }
.cms-content ol { margin-bottom: 1.3rem; padding-left: 1.4rem; }
.cms-content ol li { margin-bottom: .45rem; }
.cms-content blockquote {
    border-left: 4px solid var(--primary);
    background: rgba(230, 57, 70, .05);
    padding: .8rem 1.2rem;
    border-radius: 0 12px 12px 0;
    margin-bottom: 1.3rem;
    color: var(--muted);
    font-style: italic;
}
.cms-content img { border-radius: 12px; box-shadow: var(--shadow); margin: 1.2rem 0; }
.cms-content a { color: var(--primary); border-bottom: 1px dashed rgba(230, 57, 70, .4); }
.cms-content a:hover { color: var(--primary-dark); border-bottom-color: var(--primary-dark); }
.cms-content table { width: 100%; border-collapse: collapse; margin-bottom: 1.3rem; background: #fff; }
.cms-content table th, .cms-content table td { padding: .7rem 1rem; border: 1px solid var(--border); text-align: left; }
.cms-content table th { background: var(--dark); color: #fff; font-weight: 600; }

.article-tags { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; border-top: 1px solid var(--border); padding-top: 1.4rem; margin-top: 2rem; }
.tag-label { font-weight: 600; color: var(--dark); font-size: .9rem; }
.tag-item {
    display: inline-block;
    background: var(--body-bg);
    border: 1px solid var(--border);
    color: var(--muted);
    font-size: .82rem;
    padding: .3rem .85rem;
    border-radius: 50px;
    transition: var(--transition);
}
.tag-item:hover { background: var(--primary); border-color: var(--primary); color: #fff; transform: translateY(-2px); box-shadow: 0 4px 12px rgba(230, 57, 70, .25); }

/* ===== Not Found ===== */
.not-found-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 4rem 2.5rem;
    text-align: center;
}
.not-found-card .icon {
    width: 80px; height: 80px; margin: 0 auto 1.5rem;
    border-radius: 50%;
    background: rgba(230, 57, 70, .1);
    display: flex; align-items: center; justify-content: center;
    color: var(--primary); font-size: 2rem;
}
.not-found-card h1 { font-size: 1.6rem; margin-bottom: .8rem; }
.not-found-card p { color: var(--muted); margin-bottom: 1.6rem; }

/* ===== Sidebar ===== */
.article-sidebar { display: flex; flex-direction: column; gap: 1.4rem; }
.sidebar-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}
.sidebar-card-head {
    display: flex; align-items: center; gap: .5rem;
    font-weight: 700; font-size: 1rem; color: var(--dark);
    padding: 1rem 1.4rem;
    border-bottom: 1px solid var(--border);
    background: linear-gradient(120deg, #f8fafc, #fff);
}
.sidebar-card-head i { color: var(--primary); }
.sidebar-card-body { padding: 1.2rem 1.4rem; }
.sidebar-link {
    display: flex; align-items: center; gap: .6rem;
    padding: .6rem .8rem;
    border-radius: 10px;
    color: var(--dark);
    font-weight: 500;
    font-size: .94rem;
    margin-bottom: .3rem;
    transition: var(--transition);
}
.sidebar-link:hover { background: rgba(230, 57, 70, .06); color: var(--primary); padding-left: 1.1rem; }
.sidebar-link i { color: var(--primary); width: 18px; text-align: center; }
.service-item { display: flex; gap: .9rem; padding: .7rem 0; border-bottom: 1px dashed var(--border); }
.service-item:last-child { border-bottom: none; }
.service-item i { font-size: 1.35rem; color: var(--primary); margin-top: .2rem; }
.service-item h4 { font-size: .95rem; font-weight: 700; margin-bottom: .15rem; color: var(--dark); }
.service-item p { font-size: .82rem; color: var(--muted); }
.sidebar-promo { background: linear-gradient(135deg, var(--dark), #3a2d5d); border: none; }
.sidebar-promo .promo-content { padding: 2rem 1.6rem; text-align: center; color: #fff; }
.sidebar-promo h3 { color: #fff; font-size: 1.15rem; margin-bottom: .4rem; }
.sidebar-promo p { color: rgba(255,255,255,.7); font-size: .88rem; margin-bottom: 1rem; }
.sidebar-promo .btn { border-radius: 50px; font-weight: 600; }

/* ===== Related Section ===== */
.related-section { background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 4rem 0; }
.section-head { margin-bottom: 2.5rem; }
.section-tag {
    display: inline-block;
    background: rgba(230, 57, 70, .1);
    color: var(--primary-dark);
    font-size: .8rem; font-weight: 700;
    padding: .3rem 1.1rem;
    border-radius: 50px;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: .7rem;
}
.section-head h2 { font-size: 1.8rem; font-weight: 800; margin-bottom: .5rem; }
.section-head p { color: var(--muted); font-size: .95rem; }
.related-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    height: 100%;
    box-shadow: 0 4px 16px rgba(15, 23, 42, .05);
    transition: var(--transition);
}
.related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: rgba(230, 57, 70, .2); }
.related-card-img { display: block; overflow: hidden; aspect-ratio: 16 / 10; background: var(--dark); }
.related-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.related-card:hover .related-card-img img { transform: scale(1.05); }
.related-card-body { padding: 1.3rem 1.4rem; }
.related-card-body .badge-cat { margin-bottom: .6rem; }
.related-card-body h3 { font-size: 1rem; font-weight: 700; line-height: 1.45; margin-bottom: .5rem; }
.related-card-body h3 a { color: var(--dark); }
.related-card-body h3 a:hover { color: var(--primary); }
.related-card-body p {
    font-size: .85rem; color: var(--muted);
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
    margin-bottom: .8rem;
}
.related-card-body time { font-size: .8rem; color: var(--muted); }

/* ===== FAQ ===== */
.faq-section { padding: 4.5rem 0; background: var(--body-bg); }
.custom-accordion .accordion-item {
    border: 1px solid var(--border);
    border-radius: var(--radius-sm) !important;
    margin-bottom: .9rem;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(15, 23, 42, .04);
    background: var(--surface);
}
.custom-accordion .accordion-button {
    font-weight: 600;
    font-size: .98rem;
    padding: 1.05rem 1.4rem;
    color: var(--dark);
    background: var(--surface);
    box-shadow: none;
    border: none;
    display: flex;
    align-items: center;
    gap: .6rem;
}
.custom-accordion .accordion-button::before { content: '\f059'; font-family: 'Font Awesome 6 Free'; font-weight: 900; color: var(--primary); font-size: 1.1rem; margin-right: .5rem; }
.custom-accordion .accordion-button:not(.collapsed) { color: var(--primary-dark); background: rgba(230, 57, 70, .04); }
.custom-accordion .accordion-button:not(.collapsed)::after { transform: rotate(180deg); filter: none; }
.custom-accordion .accordion-button::after { font-family: 'Font Awesome 6 Free'; font-weight: 900; content: '\f078'; background: none; width: auto; height: auto; font-size: .8rem; color: var(--muted); }
.custom-accordion .accordion-button:focus { box-shadow: 0 0 0 .2rem rgba(230, 57, 70, .15); }
.custom-accordion .accordion-body { padding: 0 1.4rem 1.1rem 3.3rem; color: var(--muted); font-size: .93rem; line-height: 1.8; }

/* ===== CTA ===== */
.cta-section { padding: 4.5rem 0; background: var(--dark) url('/assets/images/backpic/back-3.png') center center / cover no-repeat; position: relative; overflow: hidden; }
.cta-section::before { content: ''; position: absolute; inset: 0; background: linear-gradient(120deg, rgba(15,23,42,.92), rgba(230,57,70,.55)); }
.cta-section .container { position: relative; z-index: 2; }
.cta-box { text-align: center; max-width: 620px; margin: 0 auto; }
.cta-box h2 { color: #fff; font-size: 1.9rem; font-weight: 800; margin-bottom: .8rem; }
.cta-box p { color: rgba(255,255,255,.85); font-size: 1rem; margin-bottom: 1.8rem; }
.cta-box .btn { border-radius: 50px; padding: .7rem 2.2rem; }

/* ===== Footer ===== */
.site-footer { background: var(--dark); color: rgba(255,255,255,.72); padding-top: 3.5rem; }
.site-footer .navbar-brand { margin-bottom: 1rem; }
.site-footer .brand-text { color: #fff; }
.footer-widget h5 {
    color: #fff;
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 1.1rem;
    position: relative;
    padding-bottom: .6rem;
}
.footer-widget h5::after { content: ''; position: absolute; left: 0; bottom: 0; width: 30px; height: 3px; border-radius: 100px; background: var(--primary); }
.footer-widget p { color: rgba(255,255,255,.6); font-size: .88rem; line-height: 1.8; }
.footer-widget ul li { margin-bottom: .45rem; }
.footer-widget ul li a { color: rgba(255,255,255,.6); font-size: .9rem; }
.footer-widget ul li a:hover { color: var(--primary-light); padding-left: 4px; }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,.08);
    margin-top: 2.8rem;
    padding: 1.2rem 0;
    text-align: center;
}
.footer-bottom p { font-size: .82rem; color: rgba(255,255,255,.4); }

/* ===== Responsive ===== */
@media (max-width: 991.98px) {
    .site-header .navbar-nav { padding: 1rem 0 0; }
    .site-header .nav-cta { display: inline-flex; margin-top: 1rem; }
    .page-banner { padding: 3.2rem 0 2.6rem; }
    .page-banner h1 { font-size: 1.6rem; }
    .article-detail { padding: 1.8rem 1.5rem; }
    .article-title { font-size: 1.5rem; }
    .article-sidebar { margin-top: 1.5rem; }
}
@media (max-width: 767.98px) {
    .page-banner { padding: 2.6rem 0 2rem; }
    .page-banner h1 { font-size: 1.35rem; }
    .article-main { padding: 2rem 0 1.5rem; }
    .article-detail { padding: 1.4rem 1.1rem; border-radius: 14px; }
    .article-title { font-size: 1.25rem; }
    .cms-content { font-size: .97rem; line-height: 1.8; }
    .section-head h2 { font-size: 1.4rem; }
    .related-section { padding: 3rem 0; }
    .faq-section { padding: 3rem 0; }
    .cta-section { padding: 3rem 0; }
    .cta-box h2 { font-size: 1.4rem; }
    .cta-box p { font-size: .92rem; }
    .site-footer { padding-top: 2.5rem; }
    .footer-widget { margin-bottom: 1.5rem; }
}
@media (max-width: 575.98px) {
    .brand-text { font-size: 1.05rem; }
    .brand-mark { width: 36px; height: 36px; font-size: 1.1rem; border-radius: 8px; }
    .article-meta { gap: .6rem; flex-direction: column; align-items: flex-start; }
    .tag-item { font-size: .78rem; padding: .25rem .7rem; }
    .not-found-card { padding: 2.5rem 1.2rem; }
    .custom-accordion .accordion-body { padding-left: 1.4rem; }
    .related-card-body { padding: 1rem; }
}