/* roulang page: index */
/* ===== 设计变量 ===== */
:root {
  --primary: #dc2626;
  --primary-dark: #b91c1c;
  --primary-light: #fca5a5;
  --secondary: #1e40af;
  --secondary-dark: #1e3a8a;
  --secondary-light: #93c5fd;
  --accent: #f59e0b;
  --bg-dark: #0f172a;
  --bg-soft: #f8fafc;
  --bg-white: #ffffff;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --border-light: #e2e8f0;
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --shadow-card: 0 4px 20px rgba(0,0,0,0.06), 0 1px 4px rgba(0,0,0,0.04);
  --shadow-card-hover: 0 12px 40px rgba(0,0,0,0.10), 0 4px 12px rgba(0,0,0,0.06);
  --shadow-nav: 0 2px 20px rgba(0,0,0,0.06);
  --shadow-btn: 0 4px 14px rgba(220,38,38,0.30);
  --transition: all 0.25s ease;
}

/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: "PingFang SC", "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-white);
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
button { cursor: pointer; font-family: inherit; border: none; background: none; }
input, textarea { font-family: inherit; outline: none; }
ul, ol { list-style: none; }

/* ===== Container ===== */
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 1.25rem; }
@media (max-width: 640px) { .container { padding: 0 1rem; } }

/* ===== 导航 ===== */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255,255,255,0.96); backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(226,232,240,0.6);
  box-shadow: var(--shadow-nav);
  transition: var(--transition);
}
.header.scrolled { background: rgba(255,255,255,0.98); }
.nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.logo { display: flex; align-items: center; gap: 0.5rem; font-weight: 800; font-size: 1.5rem; letter-spacing: -0.02em; }
.logo-icon { width: 38px; height: 38px; background: linear-gradient(135deg, var(--primary), #ef4444); border-radius: 10px; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 1.2rem; font-weight: 900; flex-shrink: 0; }
.logo-text { background: linear-gradient(135deg, var(--text-primary), #334155); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.logo-text span { background: linear-gradient(135deg, var(--primary), #ef4444); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.nav-links { display: flex; align-items: center; gap: 0.25rem; }
.nav-links a {
  padding: 0.5rem 1.1rem; border-radius: var(--radius-sm); font-size: 0.95rem; font-weight: 500;
  color: var(--text-secondary); transition: var(--transition); position: relative;
}
.nav-links a:hover { color: var(--primary); background: rgba(220,38,38,0.06); }
.nav-links a.active { color: var(--primary); background: rgba(220,38,38,0.08); font-weight: 600; }
.nav-links a.active::after { content: ''; position: absolute; bottom: 2px; left: 50%; transform: translateX(-50%); width: 20px; height: 3px; background: var(--primary); border-radius: 4px; }
.nav-cta {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.55rem 1.5rem; background: linear-gradient(135deg, var(--primary), #ef4444); color: #fff !important;
  border-radius: 50px; font-weight: 600; font-size: 0.9rem; box-shadow: var(--shadow-btn); transition: var(--transition);
}
.nav-cta:hover { box-shadow: var(--shadow-btn); transform: translateY(-2px); background: linear-gradient(135deg, var(--primary-dark), #dc2626); }
.nav-cta i { font-size: 0.85rem; }
.mobile-toggle { display: none; flex-direction: column; gap: 5px; padding: 6px; cursor: pointer; background: none; border: none; }
.mobile-toggle span { width: 26px; height: 2.5px; background: var(--text-primary); border-radius: 4px; transition: var(--transition); }
.mobile-toggle.active span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.mobile-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-toggle.active span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* ===== Hero ===== */
.hero {
  position: relative; min-height: 92vh; display: flex; align-items: center;
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 60%, #0f172a 100%);
  overflow: hidden; margin-top: 0; padding-top: 70px;
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  opacity: 0.25; filter: saturate(0.7);
}
.hero-overlay { position: absolute; inset: 0; z-index: 1; background: linear-gradient(135deg, rgba(15,23,42,0.85) 0%, rgba(15,23,42,0.40) 100%); }
.hero-content { position: relative; z-index: 2; width: 100%; padding: 4rem 0 5rem; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 0.5rem;
  background: rgba(220,38,38,0.15); backdrop-filter: blur(4px);
  border: 1px solid rgba(220,38,38,0.25); padding: 0.4rem 1.2rem; border-radius: 50px;
  color: #fca5a5; font-size: 0.85rem; font-weight: 500; margin-bottom: 1.5rem;
}
.hero-badge i { font-size: 0.75rem; color: var(--primary-light); }
.hero h1 {
  font-size: clamp(2.2rem, 6vw, 4.2rem); font-weight: 900; line-height: 1.15;
  color: #ffffff; margin-bottom: 1.2rem; letter-spacing: -0.02em; max-width: 800px;
}
.hero h1 span { background: linear-gradient(135deg, #fca5a5, #ef4444, #dc2626); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero p {
  font-size: clamp(1rem, 2vw, 1.2rem); color: rgba(255,255,255,0.75); max-width: 600px;
  line-height: 1.7; margin-bottom: 2.2rem;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; }
.hero-btn-primary {
  display: inline-flex; align-items: center; gap: 0.6rem;
  padding: 0.85rem 2.2rem; background: linear-gradient(135deg, var(--primary), #ef4444);
  color: #fff; border-radius: 50px; font-weight: 700; font-size: 1.05rem;
  box-shadow: 0 8px 32px rgba(220,38,38,0.35); transition: var(--transition);
}
.hero-btn-primary:hover { transform: translateY(-3px); box-shadow: 0 12px 40px rgba(220,38,38,0.45); }
.hero-btn-secondary {
  display: inline-flex; align-items: center; gap: 0.6rem;
  padding: 0.8rem 2rem; border: 2px solid rgba(255,255,255,0.20); color: rgba(255,255,255,0.85);
  border-radius: 50px; font-weight: 600; font-size: 1rem; transition: var(--transition); backdrop-filter: blur(4px);
}
.hero-btn-secondary:hover { border-color: rgba(255,255,255,0.40); background: rgba(255,255,255,0.06); transform: translateY(-2px); }
.hero-stats { display: flex; flex-wrap: wrap; gap: 2.5rem; margin-top: 3.5rem; padding-top: 2.5rem; border-top: 1px solid rgba(255,255,255,0.08); }
.hero-stat h3 { font-size: 1.8rem; font-weight: 800; color: #fff; line-height: 1.2; }
.hero-stat h3 span { color: var(--primary-light); }
.hero-stat p { font-size: 0.85rem; color: rgba(255,255,255,0.5); margin-top: 0.15rem; }

/* ===== 通用板块 ===== */
.section { padding: 5rem 0; }
.section-title { text-align: center; margin-bottom: 3.5rem; }
.section-title h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); font-weight: 800; color: var(--text-primary); letter-spacing: -0.01em; }
.section-title p { color: var(--text-secondary); max-width: 560px; margin: 0.6rem auto 0; font-size: 1.05rem; }
.section-title .badge-line { display: inline-flex; align-items: center; gap: 0.6rem; margin-bottom: 0.75rem; }
.section-title .badge-line span { width: 32px; height: 3px; background: var(--primary); border-radius: 4px; }
.section-title .badge-line em { font-style: normal; font-size: 0.85rem; color: var(--primary); font-weight: 600; letter-spacing: 0.04em; }
.bg-soft { background: var(--bg-soft); }
.bg-dark { background: var(--bg-dark); color: #fff; }
.bg-dark .section-title h2 { color: #fff; }
.bg-dark .section-title p { color: rgba(255,255,255,0.6); }

/* ===== 卡片网格 ===== */
.grid-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1.5rem; }
.card {
  background: var(--bg-white); border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow-card); transition: var(--transition); border: 1px solid var(--border-light);
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-card-hover); }
.card-img { width: 100%; aspect-ratio: 16/10; object-fit: cover; display: block; }
.card-body { padding: 1.25rem 1.5rem 1.5rem; }
.card-body h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.5rem; line-height: 1.4; }
.card-body p { font-size: 0.92rem; color: var(--text-secondary); line-height: 1.6; }
.card-tag { display: inline-block; padding: 0.2rem 0.7rem; background: rgba(220,38,38,0.08); color: var(--primary); border-radius: 50px; font-size: 0.75rem; font-weight: 600; margin-bottom: 0.6rem; }

/* ===== 特色流程/步骤 ===== */
.steps-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 2rem; }
.step-card { text-align: center; padding: 2rem 1.5rem; background: var(--bg-white); border-radius: var(--radius-lg); box-shadow: var(--shadow-card); border: 1px solid var(--border-light); transition: var(--transition); }
.step-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
.step-num { width: 52px; height: 52px; background: linear-gradient(135deg, var(--primary), #ef4444); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.3rem; font-weight: 800; margin: 0 auto 1.2rem; }
.step-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.5rem; }
.step-card p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.6; }

/* ===== 数据块 ===== */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 1.5rem; }
.stat-block { text-align: center; padding: 2rem 1.5rem; background: rgba(255,255,255,0.04); border-radius: var(--radius-lg); border: 1px solid rgba(255,255,255,0.06); backdrop-filter: blur(4px); }
.stat-block .num { font-size: 2.4rem; font-weight: 900; background: linear-gradient(135deg, #fca5a5, #ef4444); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; line-height: 1.2; }
.stat-block .label { font-size: 0.9rem; color: rgba(255,255,255,0.55); margin-top: 0.3rem; }

/* ===== FAQ ===== */
.faq-list { max-width: 780px; margin: 0 auto; display: flex; flex-direction: column; gap: 0.75rem; }
.faq-item { background: var(--bg-white); border-radius: var(--radius-md); border: 1px solid var(--border-light); overflow: hidden; transition: var(--transition); }
.faq-item:hover { border-color: rgba(220,38,38,0.15); }
.faq-q { padding: 1.2rem 1.5rem; font-weight: 600; font-size: 1rem; display: flex; align-items: center; justify-content: space-between; cursor: pointer; color: var(--text-primary); background: none; width: 100%; text-align: left; }
.faq-q i { transition: var(--transition); color: var(--text-muted); font-size: 0.85rem; }
.faq-item.open .faq-q i { transform: rotate(180deg); color: var(--primary); }
.faq-a { padding: 0 1.5rem 1.2rem; font-size: 0.95rem; color: var(--text-secondary); line-height: 1.7; display: none; }
.faq-item.open .faq-a { display: block; }

/* ===== CTA ===== */
.cta-wrap {
  padding: 4rem 2rem; border-radius: var(--radius-xl); text-align: center;
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  position: relative; overflow: hidden; isolation: isolate;
}
.cta-wrap::before { content: ''; position: absolute; inset: 0; z-index: 0; background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat; opacity: 0.08; }
.cta-wrap > * { position: relative; z-index: 1; }
.cta-wrap h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); font-weight: 800; color: #fff; margin-bottom: 0.8rem; }
.cta-wrap p { color: rgba(255,255,255,0.65); max-width: 520px; margin: 0 auto 2rem; font-size: 1rem; }
.cta-btn { display: inline-flex; align-items: center; gap: 0.6rem; padding: 0.9rem 2.5rem; background: linear-gradient(135deg, var(--primary), #ef4444); color: #fff; border-radius: 50px; font-weight: 700; font-size: 1.05rem; box-shadow: 0 8px 32px rgba(220,38,38,0.30); transition: var(--transition); }
.cta-btn:hover { transform: translateY(-3px); box-shadow: 0 12px 40px rgba(220,38,38,0.40); }

/* ===== 资讯列表项 ===== */
.post-item { display: flex; gap: 1.2rem; padding: 1.2rem 0; border-bottom: 1px solid var(--border-light); align-items: flex-start; }
.post-item:last-child { border-bottom: none; }
.post-thumb { width: 100px; height: 72px; border-radius: var(--radius-sm); object-fit: cover; flex-shrink: 0; }
.post-info { flex: 1; min-width: 0; }
.post-info h4 { font-size: 1rem; font-weight: 600; margin-bottom: 0.3rem; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.post-info h4 a { color: var(--text-primary); }
.post-info h4 a:hover { color: var(--primary); }
.post-meta { display: flex; flex-wrap: wrap; gap: 0.8rem; font-size: 0.8rem; color: var(--text-muted); }
.post-meta span { display: flex; align-items: center; gap: 0.3rem; }
.post-empty { text-align: center; padding: 2.5rem 1rem; color: var(--text-muted); font-size: 0.95rem; }

/* ===== Footer ===== */
.footer { background: #0b1120; color: rgba(255,255,255,0.7); padding: 3.5rem 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 2.5rem; padding-bottom: 2.5rem; border-bottom: 1px solid rgba(255,255,255,0.06); }
.footer-brand .logo { margin-bottom: 1rem; }
.footer-brand .logo-text { color: #fff; -webkit-text-fill-color: #fff; }
.footer-brand p { font-size: 0.9rem; line-height: 1.7; max-width: 320px; }
.footer h4 { font-size: 1rem; font-weight: 700; color: #fff; margin-bottom: 1.2rem; }
.footer ul li { margin-bottom: 0.5rem; }
.footer ul a { font-size: 0.9rem; color: rgba(255,255,255,0.55); transition: var(--transition); }
.footer ul a:hover { color: var(--primary-light); }
.footer-bottom { padding: 1.5rem 0; text-align: center; font-size: 0.85rem; color: rgba(255,255,255,0.35); }
.footer-bottom a { color: rgba(255,255,255,0.45); }
.footer-bottom a:hover { color: var(--primary-light); }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav-links { display: none; position: absolute; top: 70px; left: 0; right: 0; background: rgba(255,255,255,0.98); backdrop-filter: blur(12px); flex-direction: column; padding: 1rem 1.25rem; gap: 0.25rem; border-bottom: 1px solid var(--border-light); box-shadow: 0 12px 40px rgba(0,0,0,0.08); }
  .nav-links.open { display: flex; }
  .nav-links a { width: 100%; padding: 0.75rem 1rem; border-radius: var(--radius-sm); }
  .nav-links a.active::after { display: none; }
  .nav-links .nav-cta { width: 100%; justify-content: center; margin-top: 0.5rem; }
  .mobile-toggle { display: flex; }
  .hero { min-height: 80vh; }
  .hero-stats { gap: 1.5rem; }
  .hero-stat h3 { font-size: 1.4rem; }
  .grid-cards { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
  .steps-grid { grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .section { padding: 3.5rem 0; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .post-item { flex-direction: column; }
  .post-thumb { width: 100%; height: 160px; }
}
@media (max-width: 520px) {
  .hero h1 { font-size: 1.8rem; }
  .hero-actions { flex-direction: column; width: 100%; }
  .hero-btn-primary, .hero-btn-secondary { width: 100%; justify-content: center; }
  .hero-stats { flex-direction: column; gap: 1rem; }
  .grid-cards { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .section-title h2 { font-size: 1.4rem; }
  .cta-wrap { padding: 2.5rem 1.2rem; }
  .post-thumb { height: 130px; }
}

/* roulang page: category1 */
:root {
            --primary: #ef4444;
            --primary-dark: #dc2626;
            --primary-light: #fecaca;
            --secondary: #1e293b;
            --accent: #f59e0b;
            --bg-body: #0f0f1a;
            --bg-card: #1a1a2e;
            --bg-section: #16162a;
            --text-primary: #f1f5f9;
            --text-secondary: #94a3b8;
            --text-muted: #64748b;
            --border-color: rgba(239, 68, 68, 0.15);
            --border-light: rgba(255, 255, 255, 0.06);
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 16px 48px rgba(239, 68, 68, 0.15);
            --transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            background-color: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            min-height: 100vh;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            transition: var(--transition);
        }
        button {
            cursor: pointer;
        }
        ul {
            list-style: none;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-body);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--primary);
            border-radius: 4px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--primary-dark);
        }

        /* ===== Header / Nav ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(15, 15, 26, 0.85);
            backdrop-filter: blur(24px) saturate(1.4);
            -webkit-backdrop-filter: blur(24px) saturate(1.4);
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .header.scrolled {
            background: rgba(15, 15, 26, 0.96);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 18px;
            color: #fff;
            background: linear-gradient(135deg, var(--primary), #ef4444);
            box-shadow: 0 4px 16px rgba(239, 68, 68, 0.35);
        }
        .logo-text {
            font-size: 22px;
            font-weight: 800;
            letter-spacing: -0.3px;
            background: linear-gradient(135deg, #f1f5f9, #fca5a5);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .logo-text span {
            background: linear-gradient(135deg, #fca5a5, #ef4444);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-links a {
            padding: 8px 18px;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
        }
        .nav-links a:hover {
            color: var(--text-primary);
            background: rgba(239, 68, 68, 0.08);
        }
        .nav-links a.active {
            color: #fff;
            background: linear-gradient(135deg, var(--primary), #dc2626);
            box-shadow: 0 4px 16px rgba(239, 68, 68, 0.3);
        }
        .nav-links a.nav-cta {
            background: linear-gradient(135deg, var(--primary), #dc2626);
            color: #fff;
            padding: 8px 22px;
            border-radius: 10px;
            font-weight: 600;
            box-shadow: 0 4px 20px rgba(239, 68, 68, 0.25);
        }
        .nav-links a.nav-cta:hover {
            box-shadow: 0 8px 32px rgba(239, 68, 68, 0.4);
            transform: translateY(-1px);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 8px;
            cursor: pointer;
            border-radius: 8px;
        }
        .nav-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: var(--transition);
        }
        .nav-toggle:hover span {
            background: var(--primary);
        }

        @media (max-width: 768px) {
            .nav-links {
                position: fixed;
                top: 72px;
                left: 0;
                width: 100%;
                background: rgba(15, 15, 26, 0.98);
                backdrop-filter: blur(24px);
                -webkit-backdrop-filter: blur(24px);
                flex-direction: column;
                padding: 20px 24px 28px;
                gap: 10px;
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                border-bottom: 1px solid var(--border-light);
                box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
            }
            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: all;
            }
            .nav-links a {
                width: 100%;
                text-align: center;
                padding: 12px 18px;
                font-size: 16px;
            }
            .nav-toggle {
                display: flex;
            }
        }

        /* ===== Page Hero ===== */
        .page-hero {
            padding: 140px 0 72px;
            background: linear-gradient(160deg, #0f0f1a 0%, #1a0a0a 40%, #0f0f1a 100%);
            position: relative;
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -15%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(239, 68, 68, 0.12), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            bottom: -20%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(239, 68, 68, 0.06), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .page-hero .container {
            position: relative;
            z-index: 1;
        }
        .page-hero h1 {
            font-size: clamp(2.2rem, 5vw, 3.6rem);
            font-weight: 900;
            line-height: 1.2;
            margin-bottom: 16px;
            background: linear-gradient(135deg, #fff 40%, #fca5a5 80%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .page-hero p {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 640px;
            line-height: 1.8;
        }
        .page-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(239, 68, 68, 0.12);
            border: 1px solid rgba(239, 68, 68, 0.2);
            padding: 6px 18px;
            border-radius: 30px;
            font-size: 0.85rem;
            color: var(--primary-light);
            margin-bottom: 20px;
        }

        /* ===== Sections ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-section);
        }
        .section-title {
            font-size: clamp(1.6rem, 3vw, 2.4rem);
            font-weight: 800;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-sub {
            color: var(--text-secondary);
            font-size: 1.05rem;
            max-width: 600px;
            line-height: 1.7;
        }
        .section-header {
            margin-bottom: 48px;
        }
        .section-header.centered {
            text-align: center;
        }
        .section-header.centered .section-sub {
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== Cards ===== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: var(--transition);
            box-shadow: var(--shadow-card);
        }
        .card:hover {
            transform: translateY(-6px);
            border-color: rgba(239, 68, 68, 0.2);
            box-shadow: var(--shadow-hover);
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            background: #1e1e32;
        }
        .card-body {
            padding: 24px;
        }
        .card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .card-body p {
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.7;
        }
        .card-tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 600;
            background: rgba(239, 68, 68, 0.1);
            color: var(--primary-light);
            border: 1px solid rgba(239, 68, 68, 0.15);
            margin-bottom: 10px;
        }

        /* ===== Grid ===== */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        @media (max-width: 1024px) {
            .grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 640px) {
            .grid-3,
            .grid-2 {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        /* ===== Badge / Stat ===== */
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-item {
            text-align: center;
            padding: 28px 16px;
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .stat-item:hover {
            border-color: rgba(239, 68, 68, 0.2);
            transform: translateY(-3px);
        }
        .stat-item .num {
            font-size: 2.2rem;
            font-weight: 900;
            background: linear-gradient(135deg, #fca5a5, #ef4444);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .stat-item .label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-top: 6px;
        }
        @media (max-width: 768px) {
            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }
        @media (max-width: 480px) {
            .stat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-item .num {
                font-size: 1.6rem;
            }
        }

        /* ===== Timeline ===== */
        .timeline {
            position: relative;
            padding-left: 40px;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 16px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(to bottom, var(--primary), rgba(239, 68, 68, 0.1));
            border-radius: 2px;
        }
        .timeline-item {
            position: relative;
            padding-bottom: 36px;
        }
        .timeline-item:last-child {
            padding-bottom: 0;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -28px;
            top: 6px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--primary);
            border: 3px solid var(--bg-body);
            box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.2);
        }
        .timeline-item .tl-title {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 4px;
        }
        .timeline-item .tl-desc {
            color: var(--text-secondary);
            font-size: 0.92rem;
        }
        .timeline-item .tl-meta {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 4px;
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            padding: 20px 24px;
            margin-bottom: 14px;
            transition: var(--transition);
            cursor: pointer;
        }
        .faq-item:hover {
            border-color: rgba(239, 68, 68, 0.15);
        }
        .faq-item .faq-q {
            font-weight: 600;
            font-size: 1rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
        }
        .faq-item .faq-q i {
            flex-shrink: 0;
            color: var(--primary);
            transition: var(--transition);
        }
        .faq-item .faq-a {
            color: var(--text-secondary);
            font-size: 0.93rem;
            line-height: 1.8;
            padding-top: 14px;
            display: none;
        }
        .faq-item.open .faq-a {
            display: block;
        }
        .faq-item.open .faq-q i {
            transform: rotate(180deg);
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, #1a0a0a 0%, #0f0f1a 50%, #0a0a1a 100%);
            border-top: 1px solid rgba(239, 68, 68, 0.08);
            border-bottom: 1px solid rgba(239, 68, 68, 0.08);
        }
        .cta-box {
            background: linear-gradient(145deg, rgba(239, 68, 68, 0.06), rgba(239, 68, 68, 0.02));
            border: 1px solid rgba(239, 68, 68, 0.12);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            text-align: center;
        }
        .cta-box h2 {
            font-size: clamp(1.5rem, 3vw, 2.2rem);
            font-weight: 800;
            margin-bottom: 14px;
        }
        .cta-box p {
            color: var(--text-secondary);
            max-width: 520px;
            margin: 0 auto 28px;
            font-size: 1.05rem;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            border-radius: 12px;
            font-weight: 600;
            font-size: 1rem;
            border: none;
            transition: var(--transition);
            background: linear-gradient(135deg, var(--primary), #dc2626);
            color: #fff;
            box-shadow: 0 4px 24px rgba(239, 68, 68, 0.25);
        }
        .btn:hover {
            box-shadow: 0 8px 40px rgba(239, 68, 68, 0.4);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            border: 1.5px solid rgba(239, 68, 68, 0.3);
            color: var(--text-primary);
            box-shadow: none;
        }
        .btn-outline:hover {
            background: rgba(239, 68, 68, 0.08);
            border-color: var(--primary);
            color: #fff;
            box-shadow: none;
        }

        /* ===== Footer ===== */
        .footer {
            background: #0a0a16;
            border-top: 1px solid var(--border-light);
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.8;
            margin-top: 12px;
        }
        .footer h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 18px;
            color: var(--text-primary);
        }
        .footer ul li {
            margin-bottom: 10px;
        }
        .footer ul li a {
            color: var(--text-secondary);
            font-size: 0.9rem;
        }
        .footer ul li a:hover {
            color: var(--primary);
            padding-left: 4px;
        }
        .footer ul li span {
            color: var(--text-secondary);
            font-size: 0.9rem;
        }
        .footer ul li i {
            color: var(--primary);
        }
        .footer-bottom {
            border-top: 1px solid var(--border-light);
            padding-top: 24px;
            text-align: center;
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        .footer-bottom a {
            color: var(--text-secondary);
        }
        .footer-bottom a:hover {
            color: var(--primary);
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        /* ===== Utilities ===== */
        .gap-4 {
            gap: 1rem;
        }
        .gap-6 {
            gap: 1.5rem;
        }
        .gap-8 {
            gap: 2rem;
        }
        .mt-8 {
            margin-top: 2rem;
        }
        .mt-12 {
            margin-top: 3rem;
        }
        .mb-8 {
            margin-bottom: 2rem;
        }
        .flex-wrap {
            flex-wrap: wrap;
        }
        .items-center {
            align-items: center;
        }
        .justify-between {
            justify-content: space-between;
        }
        .text-center {
            text-align: center;
        }
        .text-gradient {
            background: linear-gradient(135deg, #fca5a5, #ef4444);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        /* ===== Back to top ===== */
        .back-top {
            position: fixed;
            bottom: 32px;
            right: 32px;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), #dc2626);
            color: #fff;
            border: none;
            font-size: 1.2rem;
            box-shadow: 0 4px 24px rgba(239, 68, 68, 0.3);
            z-index: 999;
            opacity: 0;
            transform: translateY(20px);
            pointer-events: none;
            transition: var(--transition);
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .back-top.visible {
            opacity: 1;
            transform: translateY(0);
            pointer-events: all;
        }
        .back-top:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 36px rgba(239, 68, 68, 0.45);
        }
        @media (max-width: 480px) {
            .back-top {
                bottom: 20px;
                right: 20px;
                width: 42px;
                height: 42px;
                font-size: 1rem;
            }
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-secondary);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb span {
            color: var(--text-muted);
        }
        .breadcrumb .sep {
            color: var(--text-muted);
            font-size: 0.7rem;
        }

        /* ===== Cover image block ===== */
        .cover-block {
            border-radius: var(--radius);
            overflow: hidden;
            position: relative;
        }
        .cover-block img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* ===== Responsive fixes ===== */
        @media (max-width: 640px) {
            .section {
                padding: 56px 0;
            }
            .section-header {
                margin-bottom: 32px;
            }
            .cta-box {
                padding: 36px 20px;
            }
            .page-hero {
                padding: 120px 0 48px;
            }
            .timeline {
                padding-left: 32px;
            }
            .timeline-item::before {
                left: -24px;
                width: 10px;
                height: 10px;
            }
            .timeline::before {
                left: 12px;
            }
        }

        /* ===== Fade in animation ===== */
        .fade-in {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.7s ease, transform 0.7s ease;
        }
        .fade-in.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ===== Tag group ===== */
        .tag-group {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 18px;
            border-radius: 30px;
            font-size: 0.82rem;
            font-weight: 500;
            background: rgba(239, 68, 68, 0.06);
            border: 1px solid rgba(239, 68, 68, 0.1);
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .tag:hover {
            background: rgba(239, 68, 68, 0.12);
            border-color: rgba(239, 68, 68, 0.2);
            color: var(--text-primary);
        }
        .tag.active {
            background: rgba(239, 68, 68, 0.15);
            border-color: rgba(239, 68, 68, 0.3);
            color: var(--primary-light);
        }

/* roulang page: article */
:root {
            --primary: #dc2626;
            --primary-dark: #b91c1c;
            --primary-light: #fca5a5;
            --dark: #0f172a;
            --dark-2: #1e293b;
            --dark-3: #334155;
            --dark-4: #475569;
            --bg: #f8fafc;
            --bg-card: #ffffff;
            --text: #0f172a;
            --text-2: #1e293b;
            --text-3: #64748b;
            --border: #e2e8f0;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 16px;
            --shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
            --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -1px rgba(0,0,0,0.04);
            --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -2px rgba(0,0,0,0.04);
            --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
            --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: 'Noto Sans SC', system-ui, -apple-system, sans-serif; background: var(--bg); color: var(--text); line-height: 1.7; -webkit-font-smoothing: antialiased; }
        a { color: inherit; text-decoration: none; transition: var(--transition); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        button { cursor: pointer; font-family: inherit; border: none; background: none; transition: var(--transition); }
        input, textarea { font-family: inherit; outline: none; transition: var(--transition); }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
        @media (max-width: 768px) { .container { padding: 0 16px; } }

        /* Header & Nav */
        .header { position: fixed; top: 0; left: 0; width: 100%; z-index: 1000; background: rgba(15,23,42,0.92); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom: 1px solid rgba(255,255,255,0.06); transition: var(--transition); }
        .header .container { display: flex; align-items: center; justify-content: space-between; height: 68px; gap: 24px; }
        .logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
        .logo-icon { width: 40px; height: 40px; border-radius: 10px; display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 16px; color: #fff; letter-spacing: -0.5px; }
        .logo-text { font-size: 20px; font-weight: 700; letter-spacing: -0.3px; color: #fff; }
        .logo-text span { background: linear-gradient(135deg, #fca5a5, #ef4444); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .nav-links { display: flex; align-items: center; gap: 8px; }
        .nav-links a { padding: 8px 16px; border-radius: 8px; font-size: 14px; font-weight: 500; color: rgba(255,255,255,0.7); transition: var(--transition); position: relative; }
        .nav-links a:hover { color: #fff; background: rgba(255,255,255,0.08); }
        .nav-links a.active { color: #fff; background: rgba(220,38,38,0.2); }
        .nav-links a.active::after { content: ''; position: absolute; bottom: 2px; left: 50%; transform: translateX(-50%); width: 20px; height: 3px; border-radius: 2px; background: var(--primary); }
        .nav-links a.nav-cta { background: linear-gradient(135deg, #dc2626, #b91c1c); color: #fff; padding: 8px 20px; border-radius: 8px; font-weight: 600; display: flex; align-items: center; gap: 6px; box-shadow: 0 4px 12px rgba(220,38,38,0.3); }
        .nav-links a.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(220,38,38,0.4); background: linear-gradient(135deg, #ef4444, #dc2626); }
        .nav-toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; cursor: pointer; background: none; border: none; }
        .nav-toggle span { width: 24px; height: 2.5px; border-radius: 2px; background: rgba(255,255,255,0.8); transition: var(--transition); }
        .nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
        .nav-toggle.active span:nth-child(2) { opacity: 0; }
        .nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }
        @media (max-width: 768px) {
            .nav-toggle { display: flex; }
            .nav-links { position: fixed; top: 68px; left: 0; width: 100%; background: rgba(15,23,42,0.98); backdrop-filter: blur(20px); flex-direction: column; padding: 16px 24px 24px; gap: 4px; transform: translateY(-120%); opacity: 0; pointer-events: none; transition: var(--transition); border-bottom: 1px solid rgba(255,255,255,0.06); }
            .nav-links.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
            .nav-links a { width: 100%; padding: 12px 16px; font-size: 16px; }
            .nav-links a.nav-cta { justify-content: center; margin-top: 8px; }
        }

        /* Article Hero */
        .article-hero { padding: 140px 0 60px; position: relative; background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%); overflow: hidden; }
        .article-hero::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-hero::after { content: ''; position: absolute; inset: 0; background: radial-gradient(ellipse at 30% 50%, rgba(220,38,38,0.15) 0%, transparent 70%); }
        .article-hero .container { position: relative; z-index: 2; }
        .article-hero .category-badge { display: inline-flex; align-items: center; gap: 6px; padding: 6px 16px; border-radius: 20px; font-size: 13px; font-weight: 600; background: rgba(220,38,38,0.2); color: #fca5a5; border: 1px solid rgba(220,38,38,0.3); margin-bottom: 20px; }
        .article-hero h1 { font-size: clamp(28px, 4vw, 48px); font-weight: 800; line-height: 1.2; color: #fff; margin-bottom: 20px; letter-spacing: -0.5px; }
        .article-hero .meta { display: flex; flex-wrap: wrap; gap: 16px 24px; color: rgba(255,255,255,0.6); font-size: 14px; }
        .article-hero .meta span { display: flex; align-items: center; gap: 6px; }
        .article-hero .meta i { color: rgba(255,255,255,0.4); }

        /* Article Content */
        .article-main { padding: 60px 0; }
        .article-body { max-width: 800px; margin: 0 auto; background: #fff; border-radius: var(--radius-lg); padding: 48px 56px; box-shadow: var(--shadow); }
        .article-body .cover-wrap { margin: -48px -56px 40px; border-radius: var(--radius-lg) var(--radius-lg) 0 0; overflow: hidden; max-height: 420px; }
        .article-body .cover-wrap img { width: 100%; height: 100%; object-fit: cover; border-radius: 0; }
        .article-body .content { font-size: 16px; line-height: 1.9; color: var(--text-2); }
        .article-body .content p { margin-bottom: 1.4em; }
        .article-body .content h2, .article-body .content h3 { font-weight: 700; color: var(--text); margin-top: 1.8em; margin-bottom: 0.8em; }
        .article-body .content h2 { font-size: 24px; }
        .article-body .content h3 { font-size: 20px; }
        .article-body .content ul, .article-body .content ol { margin-bottom: 1.4em; padding-left: 1.6em; }
        .article-body .content li { margin-bottom: 0.4em; }
        .article-body .content a { color: var(--primary); text-decoration: underline; }
        .article-body .content a:hover { color: var(--primary-dark); }
        .article-body .content blockquote { border-left: 4px solid var(--primary); padding: 16px 20px; margin: 1.4em 0; background: #fef2f2; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; color: var(--dark-2); }
        .article-body .content img { border-radius: var(--radius-sm); margin: 1.4em 0; }
        .article-body .content pre { background: var(--dark); color: #e2e8f0; padding: 20px 24px; border-radius: var(--radius-sm); overflow-x: auto; font-size: 14px; line-height: 1.6; margin: 1.4em 0; }
        .article-body .content code { font-family: 'Fira Code', monospace; font-size: 0.9em; }
        .article-body .content table { width: 100%; border-collapse: collapse; margin: 1.4em 0; }
        .article-body .content th, .article-body .content td { padding: 10px 14px; border: 1px solid var(--border); text-align: left; }
        .article-body .content th { background: #f8fafc; font-weight: 600; }
        .article-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 40px; padding-top: 28px; border-top: 1px solid var(--border); }
        .article-tags .tag { padding: 4px 14px; border-radius: 20px; font-size: 13px; font-weight: 500; background: #f1f5f9; color: var(--dark-3); border: 1px solid var(--border); transition: var(--transition); }
        .article-tags .tag:hover { background: var(--primary); color: #fff; border-color: var(--primary); }

        /* Not Found */
        .not-found-block { max-width: 600px; margin: 0 auto; text-align: center; padding: 80px 24px; }
        .not-found-block .nf-icon { font-size: 64px; color: var(--primary-light); margin-bottom: 24px; }
        .not-found-block h2 { font-size: 28px; font-weight: 700; color: var(--text); margin-bottom: 12px; }
        .not-found-block p { color: var(--text-3); margin-bottom: 28px; font-size: 16px; }
        .not-found-block .btn-home { display: inline-flex; align-items: center; gap: 8px; padding: 12px 32px; border-radius: 8px; font-size: 15px; font-weight: 600; background: linear-gradient(135deg, #dc2626, #b91c1c); color: #fff; box-shadow: 0 4px 12px rgba(220,38,38,0.3); }
        .not-found-block .btn-home:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(220,38,38,0.4); }

        /* Related */
        .related-section { padding: 60px 0 80px; background: #fff; }
        .related-section .section-title { font-size: 28px; font-weight: 700; text-align: center; margin-bottom: 12px; color: var(--text); }
        .related-section .section-sub { text-align: center; color: var(--text-3); margin-bottom: 40px; font-size: 15px; }
        .related-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
        .related-card { background: #fff; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); transition: var(--transition); box-shadow: var(--shadow); }
        .related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: rgba(220,38,38,0.15); }
        .related-card .card-img { height: 180px; overflow: hidden; background: #f1f5f9; }
        .related-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); border-radius: 0; }
        .related-card:hover .card-img img { transform: scale(1.05); }
        .related-card .card-body { padding: 18px 20px 20px; }
        .related-card .card-cat { font-size: 12px; font-weight: 600; color: var(--primary); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 6px; }
        .related-card .card-title { font-size: 15px; font-weight: 600; line-height: 1.4; color: var(--text); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; transition: var(--transition); }
        .related-card:hover .card-title { color: var(--primary); }
        .related-card .card-meta { font-size: 13px; color: var(--text-3); margin-top: 10px; display: flex; align-items: center; gap: 12px; }
        @media (max-width: 1024px) { .related-grid { grid-template-columns: repeat(2, 1fr); } }
        @media (max-width: 640px) { .related-grid { grid-template-columns: 1fr; } .article-body { padding: 24px 20px; } .article-body .cover-wrap { margin: -24px -20px 24px; } }

        /* CTA */
        .cta-section { padding: 80px 0; background: linear-gradient(135deg, #0f172a, #1e293b); position: relative; overflow: hidden; }
        .cta-section::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-3.png') center/cover no-repeat; opacity: 0.08; mix-blend-mode: overlay; }
        .cta-section .container { position: relative; z-index: 2; text-align: center; }
        .cta-section h2 { font-size: clamp(24px, 3.5vw, 36px); font-weight: 700; color: #fff; margin-bottom: 16px; }
        .cta-section p { color: rgba(255,255,255,0.7); max-width: 560px; margin: 0 auto 32px; font-size: 16px; }
        .cta-section .btn-cta { display: inline-flex; align-items: center; gap: 8px; padding: 14px 36px; border-radius: 10px; font-size: 16px; font-weight: 600; background: linear-gradient(135deg, #dc2626, #b91c1c); color: #fff; box-shadow: 0 4px 16px rgba(220,38,38,0.35); }
        .cta-section .btn-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(220,38,38,0.45); }

        /* Footer */
        .footer { background: #0f172a; color: rgba(255,255,255,0.7); padding: 60px 0 0; border-top: 1px solid rgba(255,255,255,0.06); }
        .footer-grid { display: grid; grid-template-columns: 1.8fr 1fr 1fr 1.3fr; gap: 40px; margin-bottom: 40px; }
        .footer-brand p { font-size: 14px; line-height: 1.8; color: rgba(255,255,255,0.5); margin-top: 12px; }
        .footer h4 { font-size: 15px; font-weight: 600; color: #fff; margin-bottom: 16px; }
        .footer ul { list-style: none; }
        .footer ul li { margin-bottom: 10px; }
        .footer ul a { font-size: 14px; color: rgba(255,255,255,0.55); transition: var(--transition); display: flex; align-items: center; gap: 4px; }
        .footer ul a:hover { color: var(--primary); padding-left: 4px; }
        .footer ul span { font-size: 14px; color: rgba(255,255,255,0.45); display: flex; align-items: center; gap: 4px; }
        .footer-bottom { border-top: 1px solid rgba(255,255,255,0.06); padding: 20px 0; text-align: center; font-size: 13px; color: rgba(255,255,255,0.4); }
        .footer-bottom a { color: rgba(255,255,255,0.5); }
        .footer-bottom a:hover { color: var(--primary); }
        @media (max-width: 1024px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; } }
        @media (max-width: 640px) { .footer-grid { grid-template-columns: 1fr; gap: 24px; } .footer-brand { order: -1; } }

        /* Skeleton loading */
        .skeleton { background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%); background-size: 200% 100%; animation: shimmer 1.5s infinite; border-radius: 6px; }
        @keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

        /* Print */
        @media print { .header, .footer, .cta-section, .related-section { display: none; } .article-hero { padding: 40px 0; } .article-body { box-shadow: none; padding: 0; } }