/* roulang page: index */
/* ===== 设计变量 ===== */
:root {
  --primary: #0f0b29;
  --primary-light: #1e1647;
  --primary-dark: #08051a;
  --accent: #f0b429;
  --accent-hover: #d49f1a;
  --accent-light: #fce38a;
  --secondary: #4fc3f7;
  --secondary-hover: #29b6f6;
  --bg-dark: #0a0721;
  --bg-card: rgba(255,255,255,0.04);
  --bg-card-hover: rgba(255,255,255,0.08);
  --text-primary: #f0edf5;
  --text-secondary: #b8b0d0;
  --text-muted: #7a7299;
  --border: rgba(255,255,255,0.08);
  --border-light: rgba(255,255,255,0.15);
  --radius: 16px;
  --radius-sm: 10px;
  --radius-xs: 6px;
  --shadow-card: 0 8px 32px rgba(0,0,0,0.4);
  --shadow-glow: 0 0 40px rgba(240,180,41,0.15);
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1200px;
  --header-h: 72px;
}
/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--font-sans);
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--secondary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent); }
button, input, textarea { font-family: inherit; font-size: 1rem; }
ul { list-style: none; }
/* ===== Container ===== */
.container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
@media (max-width: 520px) { .container { padding: 0 16px; } }
/* ===== Header / Nav ===== */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(10,7,33,0.92);
  backdrop-filter: blur(18px) saturate(1.2);
  border-bottom: 1px solid var(--border);
  height: var(--header-h);
  transition: background var(--transition), box-shadow var(--transition);
}
.header.scrolled { background: rgba(8,5,26,0.96); box-shadow: 0 4px 30px rgba(0,0,0,0.5); }
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: var(--header-h); max-width: var(--max-width); margin: 0 auto; padding: 0 24px;
}
.logo { display: flex; align-items: center; gap: 10px; font-size: 1.35rem; font-weight: 700; color: var(--text-primary); letter-spacing: 0.5px; }
.logo i { color: var(--accent); font-size: 1.6rem; }
.logo span { background: linear-gradient(135deg, var(--accent), var(--secondary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.nav { display: flex; align-items: center; gap: 8px; }
.nav a {
  padding: 8px 18px; border-radius: var(--radius-xs); font-size: 0.9rem; font-weight: 500;
  color: var(--text-secondary); transition: all var(--transition); position: relative;
}
.nav a:hover { color: var(--text-primary); background: rgba(255,255,255,0.06); }
.nav a.active { color: var(--accent); background: rgba(240,180,41,0.12); }
.nav a.active::after { content: ''; position: absolute; bottom: 2px; left: 50%; transform: translateX(-50%); width: 20px; height: 2px; background: var(--accent); border-radius: 2px; }
.nav-cta {
  background: linear-gradient(135deg, var(--accent), #d49f1a) !important;
  color: var(--primary-dark) !important; font-weight: 600 !important; padding: 8px 22px !important;
  border-radius: var(--radius-xs) !important; box-shadow: 0 4px 16px rgba(240,180,41,0.3);
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 6px 24px rgba(240,180,41,0.45) !important; color: var(--primary-dark) !important; background: linear-gradient(135deg, var(--accent-hover), #c49418) !important; }
.menu-toggle { display: none; background: none; border: none; color: var(--text-primary); font-size: 1.6rem; cursor: pointer; padding: 4px; }
@media (max-width: 768px) {
  .menu-toggle { display: block; }
  .nav { position: fixed; top: var(--header-h); left: 0; right: 0; background: rgba(8,5,26,0.98); backdrop-filter: blur(18px); flex-direction: column; padding: 16px 24px 24px; gap: 4px; border-bottom: 1px solid var(--border); transform: translateY(-120%); opacity: 0; transition: all var(--transition); pointer-events: none; }
  .nav.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav a { width: 100%; padding: 12px 16px; font-size: 1rem; }
  .nav a.active::after { display: none; }
  .nav-cta { text-align: center; }
}
/* ===== Hero ===== */
.hero {
  position: relative; min-height: 92vh; display: flex; align-items: center;
  background: linear-gradient(135deg, var(--primary-dark) 0%, #1a0f3a 40%, #0d1b2a 70%, var(--primary-dark) 100%);
  overflow: hidden; padding: 120px 0 80px;
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover; background-position: center; background-repeat: no-repeat;
  opacity: 0.25; mix-blend-mode: screen;
}
.hero-glow { position: absolute; top: -20%; right: -10%; width: 600px; height: 600px; background: radial-gradient(circle, rgba(240,180,41,0.12), transparent 70%); pointer-events: none; }
.hero-glow-2 { position: absolute; bottom: -20%; left: -10%; width: 500px; height: 500px; background: radial-gradient(circle, rgba(79,195,247,0.08), transparent 70%); pointer-events: none; }
.hero .container { position: relative; z-index: 2; }
.hero-content { max-width: 720px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(240,180,41,0.12); border: 1px solid rgba(240,180,41,0.25);
  padding: 6px 18px; border-radius: 50px; font-size: 0.82rem; color: var(--accent-light); margin-bottom: 24px;
  backdrop-filter: blur(4px);
}
.hero-badge i { font-size: 0.7rem; }
.hero h1 { font-size: clamp(2.4rem, 6vw, 4rem); font-weight: 800; line-height: 1.15; margin-bottom: 20px; letter-spacing: -0.5px; }
.hero h1 em { font-style: normal; background: linear-gradient(135deg, var(--accent), var(--secondary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero p { font-size: clamp(1rem, 2vw, 1.15rem); color: var(--text-secondary); max-width: 600px; margin-bottom: 32px; line-height: 1.7; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; }
.btn {
  display: inline-flex; align-items: center; gap: 10px; padding: 14px 32px; border-radius: var(--radius-sm);
  font-weight: 600; font-size: 1rem; border: none; cursor: pointer; transition: all var(--transition);
  text-decoration: none;
}
.btn-primary { background: linear-gradient(135deg, var(--accent), #d49f1a); color: var(--primary-dark); box-shadow: 0 4px 20px rgba(240,180,41,0.35); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(240,180,41,0.5); color: var(--primary-dark); }
.btn-secondary { background: rgba(255,255,255,0.06); color: var(--text-primary); border: 1px solid var(--border-light); backdrop-filter: blur(4px); }
.btn-secondary:hover { background: rgba(255,255,255,0.12); transform: translateY(-2px); color: var(--text-primary); }
.btn-sm { padding: 10px 20px; font-size: 0.88rem; }
.btn-icon { padding: 10px 16px; }
.hero-stats { display: flex; flex-wrap: wrap; gap: 32px; margin-top: 48px; padding-top: 32px; border-top: 1px solid var(--border); }
.hero-stat { text-align: left; }
.hero-stat-value { font-size: 1.8rem; font-weight: 700; color: var(--text-primary); letter-spacing: -0.5px; }
.hero-stat-value i { color: var(--accent); font-size: 1.2rem; margin-right: 4px; }
.hero-stat-label { font-size: 0.85rem; color: var(--text-muted); margin-top: 2px; }
/* ===== Section ===== */
.section { padding: 88px 0; position: relative; }
.section-dark { background: var(--primary-dark); }
.section-divider { border: none; height: 1px; background: linear-gradient(90deg, transparent, var(--border), transparent); margin: 0; }
.section-header { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-header h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); font-weight: 700; margin-bottom: 12px; letter-spacing: -0.3px; }
.section-header h2 i { color: var(--accent); margin-right: 8px; }
.section-header p { color: var(--text-secondary); font-size: 1.05rem; line-height: 1.7; }
.section-tag {
  display: inline-block; background: rgba(240,180,41,0.1); color: var(--accent);
  padding: 4px 16px; border-radius: 50px; font-size: 0.78rem; font-weight: 500; margin-bottom: 12px;
  border: 1px solid rgba(240,180,41,0.15);
}
/* ===== Cards Grid ===== */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
@media (max-width: 1024px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 768px) { .grid-3 { grid-template-columns: repeat(2, 1fr); } .grid-2 { grid-template-columns: 1fr; } }
@media (max-width: 520px) { .grid-3 { grid-template-columns: 1fr; } .grid-4 { grid-template-columns: 1fr; } }
.card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px 24px; transition: all var(--transition); position: relative; overflow: hidden;
}
.card:hover { background: var(--bg-card-hover); border-color: var(--border-light); transform: translateY(-4px); box-shadow: var(--shadow-card); }
.card-icon { width: 52px; height: 52px; border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; font-size: 1.4rem; margin-bottom: 18px; background: rgba(240,180,41,0.1); color: var(--accent); }
.card-icon.blue { background: rgba(79,195,247,0.1); color: var(--secondary); }
.card-icon.purple { background: rgba(180,130,255,0.1); color: #b482ff; }
.card h3 { font-size: 1.15rem; font-weight: 600; margin-bottom: 8px; }
.card p { color: var(--text-secondary); font-size: 0.92rem; line-height: 1.6; }
.card-link { margin-top: 16px; display: inline-flex; align-items: center; gap: 6px; font-size: 0.88rem; font-weight: 500; color: var(--secondary); }
.card-link:hover { color: var(--accent); }
.card-cover { width: 100%; height: 180px; object-fit: cover; border-radius: var(--radius-sm); margin-bottom: 16px; background: var(--primary-light); }
.card-meta { display: flex; align-items: center; gap: 12px; font-size: 0.8rem; color: var(--text-muted); margin-bottom: 10px; }
.card-meta span { display: flex; align-items: center; gap: 4px; }
.card-tag {
  display: inline-block; padding: 2px 12px; border-radius: 50px; font-size: 0.72rem; font-weight: 500;
  background: rgba(240,180,41,0.12); color: var(--accent); border: 1px solid rgba(240,180,41,0.15);
}
/* ===== Feature / Steps ===== */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; counter-reset: step; }
.step { text-align: center; padding: 32px 20px; position: relative; }
.step::before { counter-increment: step; content: counter(step); position: absolute; top: 0; left: 50%; transform: translateX(-50%); width: 48px; height: 48px; border-radius: 50%; background: linear-gradient(135deg, var(--accent), #d49f1a); color: var(--primary-dark); font-weight: 700; font-size: 1.2rem; display: flex; align-items: center; justify-content: center; }
.step-icon { margin-top: 64px; font-size: 2.2rem; color: var(--secondary); margin-bottom: 16px; }
.step h4 { font-size: 1.1rem; font-weight: 600; margin-bottom: 8px; }
.step p { color: var(--text-secondary); font-size: 0.9rem; line-height: 1.6; }
@media (max-width: 768px) { .steps { grid-template-columns: 1fr; gap: 24px; } }
/* ===== FAQ ===== */
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-sm); overflow: hidden; transition: all var(--transition); }
.faq-item:hover { border-color: var(--border-light); }
.faq-q { padding: 18px 24px; display: flex; align-items: center; justify-content: space-between; cursor: pointer; font-weight: 500; font-size: 1rem; gap: 16px; user-select: none; }
.faq-q i { color: var(--accent); transition: transform var(--transition); font-size: 0.85rem; flex-shrink: 0; }
.faq-item.open .faq-q i { transform: rotate(180deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.3s ease; padding: 0 24px; color: var(--text-secondary); font-size: 0.92rem; line-height: 1.7; }
.faq-item.open .faq-a { max-height: 300px; padding: 0 24px 20px; }
/* ===== CTA ===== */
.cta-section { background: linear-gradient(135deg, var(--primary-dark), #1a0f3a, var(--primary-dark)); padding: 80px 0; text-align: center; position: relative; overflow: hidden; }
.cta-section::before { content: ''; position: absolute; inset: 0; background-image: url('/assets/images/backpic/back-2.png'); background-size: cover; background-position: center; opacity: 0.08; }
.cta-section .container { position: relative; z-index: 2; }
.cta-section h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); font-weight: 700; margin-bottom: 16px; }
.cta-section p { color: var(--text-secondary); max-width: 520px; margin: 0 auto 32px; font-size: 1.05rem; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; }
/* ===== Footer ===== */
.footer {
  background: var(--primary-dark); border-top: 1px solid var(--border); padding: 48px 0 32px;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 32px; }
.footer-brand .logo { margin-bottom: 12px; font-size: 1.2rem; }
.footer-brand p { color: var(--text-muted); font-size: 0.88rem; max-width: 320px; line-height: 1.7; }
.footer-col h5 { font-size: 0.9rem; font-weight: 600; color: var(--text-primary); margin-bottom: 16px; }
.footer-col a { display: block; color: var(--text-muted); font-size: 0.88rem; padding: 4px 0; transition: color var(--transition); }
.footer-col a:hover { color: var(--accent); }
.footer-bottom { border-top: 1px solid var(--border); padding-top: 24px; display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 12px; font-size: 0.82rem; color: var(--text-muted); }
.footer-bottom-links { display: flex; gap: 20px; }
.footer-bottom-links a { color: var(--text-muted); font-size: 0.82rem; }
.footer-bottom-links a:hover { color: var(--accent); }
@media (max-width: 768px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; } .footer-brand { grid-column: span 2; } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } .footer-brand { grid-column: span 1; } .footer-bottom { flex-direction: column; text-align: center; } }
/* ===== Utility ===== */
.text-center { text-align: center; }
.mt-1 { margin-top: 8px; } .mt-2 { margin-top: 16px; } .mt-3 { margin-top: 24px; } .mt-4 { margin-top: 32px; } .mt-5 { margin-top: 48px; }
.mb-1 { margin-bottom: 8px; } .mb-2 { margin-bottom: 16px; } .mb-3 { margin-bottom: 24px; } .mb-4 { margin-bottom: 32px; }
.gap-1 { gap: 8px; } .gap-2 { gap: 16px; } .gap-3 { gap: 24px; }
.flex { display: flex; } .flex-wrap { flex-wrap: wrap; } .items-center { align-items: center; } .justify-center { justify-content: center; }
/* ===== Post list (CMS) ===== */
.post-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
@media (max-width: 768px) { .post-list { grid-template-columns: 1fr; } }
.post-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px 22px; transition: all var(--transition); display: flex; flex-direction: column; }
.post-card:hover { background: var(--bg-card-hover); border-color: var(--border-light); transform: translateY(-3px); box-shadow: var(--shadow-card); }
.post-card h3 { font-size: 1.05rem; font-weight: 600; margin-bottom: 8px; line-height: 1.4; }
.post-card h3 a { color: var(--text-primary); }
.post-card h3 a:hover { color: var(--accent); }
.post-card p { color: var(--text-secondary); font-size: 0.9rem; line-height: 1.6; margin-bottom: 12px; flex: 1; }
.post-card .post-meta { display: flex; align-items: center; gap: 14px; font-size: 0.8rem; color: var(--text-muted); margin-top: auto; }
.post-card .post-meta span { display: flex; align-items: center; gap: 4px; }
.empty-msg { grid-column: 1 / -1; text-align: center; padding: 40px; color: var(--text-muted); font-size: 1rem; background: var(--bg-card); border-radius: var(--radius); border: 1px dashed var(--border); }
/* ===== Responsive extras ===== */
@media (max-width: 520px) {
  .hero { min-height: 80vh; padding: 100px 0 60px; }
  .hero-stats { flex-direction: column; gap: 16px; }
  .section { padding: 56px 0; }
  .btn { padding: 12px 24px; font-size: 0.92rem; }
  .card { padding: 20px 18px; }
}
/* ===== Smooth appear ===== */
.fade-up { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* roulang page: article */
:root {
            --primary: #0f0f2d;
            --primary-light: #1a1a3e;
            --secondary: #f09d51;
            --secondary-light: #f7b874;
            --accent: #6c63ff;
            --accent-light: #8b85ff;
            --bg: #f4f5f9;
            --bg-card: #ffffff;
            --text: #2d2d44;
            --text-light: #6b6b82;
            --text-white: #f0f0f5;
            --border: #e2e4ed;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-xs: 6px;
            --shadow: 0 8px 30px rgba(15, 15, 45, 0.08);
            --shadow-hover: 0 16px 48px rgba(15, 15, 45, 0.15);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            --max-width: 1200px;
            --header-h: 72px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }
        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            padding-top: var(--header-h);
        }
        a {
            color: var(--accent);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-light);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            transition: var(--transition);
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== Header & Nav ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-h);
            background: rgba(15, 15, 45, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-white);
            text-decoration: none;
            white-space: nowrap;
        }
        .logo i {
            color: var(--secondary);
            font-size: 24px;
        }
        .logo span {
            background: linear-gradient(135deg, var(--text-white) 40%, var(--secondary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .nav::-webkit-scrollbar {
            display: none;
        }
        .nav a {
            padding: 8px 16px;
            border-radius: var(--radius-xs);
            font-size: 14px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.75);
            text-decoration: none;
            white-space: nowrap;
            transition: var(--transition);
            position: relative;
        }
        .nav a:hover {
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.08);
        }
        .nav a.active {
            color: var(--text-white);
            background: rgba(108, 99, 255, 0.25);
        }
        .nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 3px;
            background: var(--accent);
        }
        .nav a.nav-cta {
            background: linear-gradient(135deg, var(--secondary), #e8822a);
            color: #1a1a2e;
            font-weight: 600;
            padding: 8px 20px;
            border-radius: var(--radius-xs);
            box-shadow: 0 4px 16px rgba(240, 157, 81, 0.3);
        }
        .nav a.nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(240, 157, 81, 0.45);
            background: linear-gradient(135deg, var(--secondary-light), var(--secondary));
        }
        .nav a.nav-cta i {
            margin-right: 6px;
        }
        .nav-toggle {
            display: none;
            background: none;
            color: var(--text-white);
            font-size: 26px;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: var(--radius-xs);
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.08);
        }
        @media (max-width: 1024px) {
            .nav a {
                padding: 6px 12px;
                font-size: 13px;
            }
            .logo span {
                font-size: 18px;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .nav {
                position: fixed;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: rgba(15, 15, 45, 0.98);
                backdrop-filter: blur(16px);
                flex-direction: column;
                padding: 16px 24px 24px;
                gap: 8px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                overflow-y: auto;
                max-height: calc(100vh - var(--header-h));
            }
            .nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav a {
                width: 100%;
                text-align: center;
                padding: 12px 16px;
                font-size: 15px;
            }
            .nav a.active::after {
                display: none;
            }
            .nav a.nav-cta {
                margin-top: 8px;
            }
        }

        /* ===== Article Hero ===== */
        .article-hero {
            position: relative;
            padding: 60px 0 40px;
            background: var(--primary);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            min-height: 280px;
            display: flex;
            align-items: center;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 15, 45, 0.88) 40%, rgba(15, 15, 45, 0.6));
            z-index: 1;
        }
        .article-hero .container {
            position: relative;
            z-index: 2;
            width: 100%;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 16px;
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            color: var(--secondary);
        }
        .breadcrumb span {
            color: rgba(255, 255, 255, 0.4);
        }
        .breadcrumb .current {
            color: var(--secondary-light);
            max-width: 320px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        .article-hero h1 {
            font-size: 36px;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.3;
            margin-bottom: 12px;
            max-width: 900px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 24px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
        }
        .article-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .article-meta i {
            color: var(--secondary);
            font-size: 14px;
        }
        .article-meta .category-tag {
            background: rgba(108, 99, 255, 0.3);
            color: var(--accent-light);
            padding: 2px 14px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
        }
        @media (max-width: 768px) {
            .article-hero {
                padding: 40px 0 28px;
                min-height: 200px;
            }
            .article-hero h1 {
                font-size: 24px;
            }
            .breadcrumb .current {
                max-width: 180px;
            }
            .article-meta {
                gap: 10px 16px;
                font-size: 13px;
            }
        }
        @media (max-width: 520px) {
            .article-hero h1 {
                font-size: 20px;
            }
            .article-meta {
                flex-direction: column;
                gap: 6px;
            }
        }

        /* ===== Article Content ===== */
        .article-main {
            padding: 40px 0 60px;
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
        }
        .article-body {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 40px 44px;
            box-shadow: var(--shadow);
        }
        .article-body .featured-image {
            margin: -40px -44px 32px -44px;
            border-radius: var(--radius) var(--radius) 0 0;
            overflow: hidden;
            max-height: 420px;
        }
        .article-body .featured-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }
        .article-body .content {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text);
        }
        .article-body .content p {
            margin-bottom: 1.4em;
        }
        .article-body .content h2,
        .article-body .content h3 {
            margin-top: 1.6em;
            margin-bottom: 0.6em;
            font-weight: 700;
            color: var(--primary);
        }
        .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: 24px;
        }
        .article-body .content li {
            margin-bottom: 0.4em;
        }
        .article-body .content img {
            border-radius: var(--radius-sm);
            margin: 24px 0;
            box-shadow: var(--shadow);
        }
        .article-body .content a {
            color: var(--accent);
            text-decoration: underline;
            text-underline-offset: 2px;
        }
        .article-body .content a:hover {
            color: var(--secondary);
        }
        .article-body .content blockquote {
            border-left: 4px solid var(--secondary);
            background: rgba(240, 157, 81, 0.06);
            padding: 16px 24px;
            margin: 20px 0;
            border-radius: var(--radius-xs);
            color: var(--text-light);
            font-style: italic;
        }
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 32px;
            padding-top: 20px;
            border-top: 1px solid var(--border);
        }
        .article-tags .tag {
            background: var(--bg);
            color: var(--text-light);
            padding: 4px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            transition: var(--transition);
        }
        .article-tags .tag:hover {
            background: var(--accent);
            color: #fff;
        }
        .article-share {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 20px;
            padding-top: 16px;
            border-top: 1px solid var(--border);
        }
        .article-share span {
            font-size: 14px;
            color: var(--text-light);
            font-weight: 500;
        }
        .article-share a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--bg);
            color: var(--text-light);
            font-size: 16px;
            transition: var(--transition);
        }
        .article-share a:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-2px);
        }
        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr;
            }
            .article-body {
                padding: 28px 24px;
            }
            .article-body .featured-image {
                margin: -28px -24px 24px -24px;
                max-height: 300px;
            }
        }
        @media (max-width: 520px) {
            .article-body {
                padding: 20px 16px;
            }
            .article-body .featured-image {
                margin: -20px -16px 20px -16px;
                max-height: 200px;
            }
        }

        /* ===== Sidebar ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow);
        }
        .sidebar-card h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h4 i {
            color: var(--secondary);
        }
        .sidebar-list {
            list-style: none;
            padding: 0;
        }
        .sidebar-list li {
            padding: 10px 0;
            border-bottom: 1px solid var(--border);
        }
        .sidebar-list li:last-child {
            border-bottom: none;
        }
        .sidebar-list a {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            color: var(--text);
            font-size: 14px;
            line-height: 1.5;
        }
        .sidebar-list a:hover {
            color: var(--accent);
        }
        .sidebar-list a .thumb {
            width: 64px;
            height: 48px;
            border-radius: var(--radius-xs);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--bg);
        }
        .sidebar-list a .info {
            flex: 1;
            min-width: 0;
        }
        .sidebar-list a .info .title {
            font-weight: 600;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .sidebar-list a .info .date {
            font-size: 12px;
            color: var(--text-light);
            margin-top: 4px;
        }
        .sidebar-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: var(--text-white);
            text-align: center;
            padding: 32px 24px;
        }
        .sidebar-cta h4 {
            color: var(--secondary-light);
            font-size: 18px;
            margin-bottom: 8px;
        }
        .sidebar-cta p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 16px;
        }
        .sidebar-cta .btn {
            display: inline-block;
            background: var(--secondary);
            color: #1a1a2e;
            padding: 10px 28px;
            border-radius: var(--radius-xs);
            font-weight: 600;
            font-size: 14px;
        }
        .sidebar-cta .btn:hover {
            background: var(--secondary-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(240, 157, 81, 0.3);
        }
        @media (max-width: 1024px) {
            .article-sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
        }
        @media (max-width: 640px) {
            .article-sidebar {
                grid-template-columns: 1fr;
            }
        }

        /* ===== Not Found ===== */
        .not-found-box {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 60px 40px;
            text-align: center;
            box-shadow: var(--shadow);
        }
        .not-found-box i {
            font-size: 56px;
            color: var(--secondary);
            margin-bottom: 20px;
        }
        .not-found-box h2 {
            font-size: 26px;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .not-found-box p {
            color: var(--text-light);
            margin-bottom: 24px;
            font-size: 16px;
        }
        .not-found-box .btn-home {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            padding: 12px 32px;
            border-radius: var(--radius-xs);
            font-weight: 600;
            font-size: 15px;
        }
        .not-found-box .btn-home:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(108, 99, 255, 0.3);
        }

        /* ===== Related Posts ===== */
        .related-section {
            padding: 60px 0;
            background: var(--bg);
        }
        .related-section .section-title {
            font-size: 28px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 8px;
            text-align: center;
        }
        .related-section .section-desc {
            text-align: center;
            color: var(--text-light);
            margin-bottom: 32px;
            font-size: 15px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .related-card .card-img {
            height: 180px;
            background: var(--primary-light);
            overflow: hidden;
        }
        .related-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .related-card:hover .card-img img {
            transform: scale(1.05);
        }
        .related-card .card-body {
            padding: 20px 20px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .related-card .card-body .cat {
            font-size: 12px;
            font-weight: 600;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 6px;
        }
        .related-card .card-body h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.4;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-body p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.6;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
        }
        .related-card .card-body .meta {
            font-size: 12px;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .related-card .card-body .meta i {
            color: var(--secondary);
        }
        @media (max-width: 1024px) {
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 640px) {
            .related-grid {
                grid-template-columns: 1fr;
            }
            .related-section .section-title {
                font-size: 22px;
            }
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 60px 0;
            background: var(--bg-card);
        }
        .faq-section .section-title {
            font-size: 28px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 8px;
            text-align: center;
        }
        .faq-section .section-desc {
            text-align: center;
            color: var(--text-light);
            margin-bottom: 32px;
            font-size: 15px;
        }
        .faq-grid {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--accent);
        }
        .faq-question {
            padding: 18px 24px;
            background: var(--bg);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            font-size: 15px;
            color: var(--text);
            transition: var(--transition);
            user-select: none;
        }
        .faq-question i {
            color: var(--accent);
            font-size: 14px;
            transition: var(--transition);
        }
        .faq-item.active .faq-question {
            background: rgba(108, 99, 255, 0.06);
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: var(--transition);
            color: var(--text-light);
            font-size: 14px;
            line-height: 1.8;
        }
        .faq-item.active .faq-answer {
            padding: 0 24px 18px;
            max-height: 300px;
        }
        @media (max-width: 640px) {
            .faq-section .section-title {
                font-size: 22px;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 14px;
            }
            .faq-answer {
                font-size: 13px;
            }
            .faq-item.active .faq-answer {
                padding: 0 16px 14px;
            }
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 60px 0;
            background: var(--primary);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            position: relative;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 15, 45, 0.85), rgba(15, 15, 45, 0.7));
            z-index: 1;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.75);
            max-width: 600px;
            margin: 0 auto 28px;
        }
        .cta-section .btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }
        .cta-section .btn-primary {
            background: var(--secondary);
            color: #1a1a2e;
            padding: 14px 36px;
            border-radius: var(--radius-xs);
            font-weight: 700;
            font-size: 16px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .cta-section .btn-primary:hover {
            background: var(--secondary-light);
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(240, 157, 81, 0.35);
        }
        .cta-section .btn-outline {
            background: transparent;
            color: var(--text-white);
            padding: 14px 36px;
            border-radius: var(--radius-xs);
            font-weight: 600;
            font-size: 16px;
            border: 2px solid rgba(255, 255, 255, 0.3);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .cta-section .btn-outline:hover {
            border-color: var(--secondary);
            color: var(--secondary);
            transform: translateY(-3px);
        }
        @media (max-width: 640px) {
            .cta-section h2 {
                font-size: 24px;
            }
            .cta-section p {
                font-size: 14px;
            }
            .cta-section .btn-primary,
            .cta-section .btn-outline {
                padding: 12px 24px;
                font-size: 14px;
            }
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 0 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        .footer-brand .logo {
            font-size: 20px;
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            max-width: 360px;
        }
        .footer-col h5 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            padding: 4px 0;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--secondary);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom-links {
            display: flex;
            gap: 16px;
        }
        .footer-bottom-links a {
            color: rgba(255, 255, 255, 0.5);
            text-decoration: none;
            font-size: 13px;
        }
        .footer-bottom-links a:hover {
            color: var(--secondary);
        }
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 640px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-bottom-links {
                flex-wrap: wrap;
                justify-content: center;
            }
        }

        /* ===== Utility ===== */
        .text-center {
            text-align: center;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }
        .gap-8 {
            gap: 8px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }

        /* ===== Article NotFound state ===== */
        .article-not-found {
            padding: 80px 0;
            background: var(--bg);
        }
        .article-not-found .container {
            max-width: 600px;
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #f59e0b;
            --primary-dark: #d97706;
            --primary-light: #fbbf24;
            --secondary: #1e3a5f;
            --secondary-light: #2d5a8e;
            --accent: #ef4444;
            --bg-dark: #0b1121;
            --bg-mid: #111827;
            --bg-card: #1a2236;
            --bg-soft: #1e293b;
            --text-main: #f1f5f9;
            --text-muted: #94a3b8;
            --text-light: #cbd5e1;
            --border: #2d3a52;
            --border-light: #3d4a62;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow: 0 8px 32px rgba(0, 0, 0, 0.45);
            --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.3);
            --shadow-glow: 0 0 40px rgba(245, 158, 11, 0.15);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-base: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --max-width: 1200px;
            --nav-height: 72px;
        }

        /* ===== Reset / Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-base);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-main);
            background: var(--bg-dark);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-light);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: 1rem;
            outline: none;
            border: none;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--text-main);
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header & Nav ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(11, 17, 33, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border);
            height: var(--nav-height);
            transition: background var(--transition), box-shadow var(--transition);
        }
        .header.scrolled {
            background: rgba(11, 17, 33, 0.98);
            box-shadow: var(--shadow);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            gap: 16px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text-main) !important;
            letter-spacing: -0.5px;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .logo i {
            color: var(--primary);
            font-size: 1.6rem;
        }
        .logo span {
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
        }
        .nav::-webkit-scrollbar {
            display: none;
        }
        .nav a {
            padding: 8px 16px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: all var(--transition);
            white-space: nowrap;
            position: relative;
        }
        .nav a:hover {
            color: var(--text-main);
            background: rgba(245, 158, 11, 0.08);
        }
        .nav a.active {
            color: #fff;
            background: var(--primary);
            box-shadow: 0 4px 20px rgba(245, 158, 11, 0.35);
        }
        .nav a.active:hover {
            background: var(--primary-dark);
            color: #fff;
        }
        .nav-cta {
            background: var(--primary) !important;
            color: #fff !important;
            padding: 8px 22px !important;
            border-radius: 50px !important;
            font-weight: 600 !important;
            display: flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 4px 20px rgba(245, 158, 11, 0.3);
        }
        .nav-cta:hover {
            background: var(--primary-dark) !important;
            box-shadow: 0 6px 28px rgba(245, 158, 11, 0.45) !important;
            transform: translateY(-1px);
        }
        .nav-cta i {
            font-size: 0.85rem;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-main);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 8px;
            border-radius: 8px;
            transition: background var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.05);
        }

        /* ===== Mobile Nav ===== */
        .mobile-nav {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            background: rgba(11, 17, 33, 0.98);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border);
            padding: 16px 24px 24px;
            flex-direction: column;
            gap: 8px;
            z-index: 999;
            transform: translateY(-110%);
            transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .mobile-nav.open {
            transform: translateY(0);
        }
        .mobile-nav a {
            padding: 12px 20px;
            border-radius: var(--radius-sm);
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: all var(--transition);
        }
        .mobile-nav a:hover {
            background: rgba(245, 158, 11, 0.08);
            color: var(--text-main);
        }
        .mobile-nav a.active {
            color: #fff;
            background: var(--primary);
        }
        .mobile-nav .nav-cta {
            justify-content: center;
            margin-top: 8px;
        }

        /* ===== Hero / Banner ===== */
        .page-hero {
            position: relative;
            padding: 120px 0 80px;
            margin-top: var(--nav-height);
            background: var(--bg-mid);
            overflow: hidden;
            min-height: 360px;
            display: flex;
            align-items: center;
        }
        .page-hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.25;
            z-index: 0;
        }
        .page-hero-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 17, 33, 0.92) 0%, rgba(11, 17, 33, 0.6) 100%);
        }
        .page-hero .container {
            position: relative;
            z-index: 1;
            text-align: center;
        }
        .page-hero h1 {
            font-size: 3rem;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: -1px;
            background: linear-gradient(135deg, #fff, var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .page-hero p {
            font-size: 1.15rem;
            color: var(--text-light);
            max-width: 640px;
            margin: 0 auto 24px;
            line-height: 1.8;
        }
        .page-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(245, 158, 11, 0.15);
            border: 1px solid rgba(245, 158, 11, 0.25);
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            color: var(--primary-light);
            margin-bottom: 20px;
        }
        .page-hero .hero-badge i {
            font-size: 0.75rem;
            animation: pulse-dot 1.8s infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.3;
            }
        }

        /* ===== Section通用 ===== */
        .section {
            padding: 80px 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }
        .section-header h2 i {
            color: var(--primary);
            margin-right: 10px;
        }
        .section-header p {
            color: var(--text-muted);
            font-size: 1.05rem;
            max-width: 560px;
            margin: 0 auto;
        }
        .section-header .tagline {
            display: inline-block;
            background: rgba(245, 158, 11, 0.12);
            color: var(--primary-light);
            padding: 4px 16px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
            border: 1px solid rgba(245, 158, 11, 0.15);
        }
        .section-bg-alt {
            background: var(--bg-mid);
        }
        .section-bg-card {
            background: var(--bg-card);
        }

        /* ===== Card Grid ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .card:hover {
            transform: translateY(-6px);
            border-color: var(--border-light);
            box-shadow: var(--shadow);
        }
        .card-img {
            position: relative;
            width: 100%;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--bg-soft);
        }
        .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .card:hover .card-img img {
            transform: scale(1.06);
        }
        .card-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--accent);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 50px;
            letter-spacing: 0.3px;
            box-shadow: 0 2px 12px rgba(239, 68, 68, 0.4);
        }
        .card-badge.hot {
            background: var(--primary);
            box-shadow: 0 2px 12px rgba(245, 158, 11, 0.4);
        }
        .card-badge.new {
            background: #10b981;
            box-shadow: 0 2px 12px rgba(16, 185, 129, 0.4);
        }
        .card-body {
            padding: 20px 22px 24px;
        }
        .card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            transition: color var(--transition);
        }
        .card:hover .card-body h3 {
            color: var(--primary-light);
        }
        .card-body p {
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.7;
            margin-bottom: 14px;
        }
        .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .card-meta i {
            margin-right: 4px;
            color: var(--primary);
        }
        .card-meta .rating {
            color: var(--primary-light);
        }
        .card-footer-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            margin-top: 12px;
            transition: gap var(--transition);
        }
        .card-footer-link:hover {
            gap: 12px;
            color: var(--primary-light);
        }

        /* ===== Featured / 图文混排 ===== */
        .feature-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 40px 48px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }
        .feature-block.reverse {
            direction: rtl;
        }
        .feature-block.reverse>* {
            direction: ltr;
        }
        .feature-img {
            border-radius: var(--radius);
            overflow: hidden;
            aspect-ratio: 4 / 3;
            background: var(--bg-soft);
        }
        .feature-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .feature-block:hover .feature-img img {
            transform: scale(1.03);
        }
        .feature-content h3 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .feature-content h3 i {
            color: var(--primary);
            margin-right: 8px;
        }
        .feature-content p {
            color: var(--text-muted);
            font-size: 1rem;
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .feature-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 20px;
        }
        .feature-tags span {
            background: rgba(245, 158, 11, 0.1);
            border: 1px solid rgba(245, 158, 11, 0.15);
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            color: var(--primary-light);
        }
        .feature-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 12px 28px;
            background: var(--primary);
            color: #fff;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            box-shadow: 0 4px 20px rgba(245, 158, 11, 0.3);
        }
        .feature-cta:hover {
            background: var(--primary-dark);
            box-shadow: 0 6px 28px rgba(245, 158, 11, 0.45);
            transform: translateY(-2px);
            color: #fff;
        }

        /* ===== Tags / 热门标签 ===== */
        .tags-cloud {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            max-width: 720px;
            margin: 0 auto;
        }
        .tags-cloud a {
            padding: 10px 24px;
            border-radius: 50px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            color: var(--text-light);
            font-size: 0.9rem;
            font-weight: 500;
            transition: all var(--transition);
        }
        .tags-cloud a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 4px 20px rgba(245, 158, 11, 0.3);
            transform: translateY(-2px);
        }
        .tags-cloud a i {
            margin-right: 6px;
            font-size: 0.8rem;
        }
        .tags-cloud a .count {
            display: inline-block;
            margin-left: 6px;
            background: rgba(255, 255, 255, 0.1);
            padding: 0 8px;
            border-radius: 20px;
            font-size: 0.7rem;
            font-weight: 600;
        }
        .tags-cloud a:hover .count {
            background: rgba(255, 255, 255, 0.2);
        }

        /* ===== 资讯列表 ===== */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
            max-width: 860px;
            margin: 0 auto;
        }
        .news-item {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 20px 24px;
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            transition: all var(--transition);
        }
        .news-item:hover {
            border-color: var(--border-light);
            background: var(--bg-soft);
            transform: translateX(4px);
        }
        .news-item .num {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            min-width: 44px;
            text-align: center;
            opacity: 0.7;
        }
        .news-item .num.top1 {
            color: var(--accent);
            opacity: 1;
        }
        .news-item .num.top2 {
            color: var(--primary-light);
            opacity: 1;
        }
        .news-item .num.top3 {
            color: var(--primary);
            opacity: 1;
        }
        .news-item .info {
            flex: 1;
        }
        .news-item .info h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 4px;
            transition: color var(--transition);
        }
        .news-item:hover .info h4 {
            color: var(--primary-light);
        }
        .news-item .info p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .news-item .meta {
            font-size: 0.78rem;
            color: var(--text-muted);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .news-item .meta i {
            color: var(--primary);
            margin-right: 4px;
        }
        .news-item .tag {
            padding: 2px 12px;
            border-radius: 50px;
            font-size: 0.7rem;
            font-weight: 600;
            background: rgba(245, 158, 11, 0.12);
            color: var(--primary-light);
            border: 1px solid rgba(245, 158, 11, 0.15);
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: border-color var(--transition);
        }
        .faq-item.open {
            border-color: var(--primary);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-main);
            transition: color var(--transition);
            user-select: none;
            gap: 16px;
        }
        .faq-question:hover {
            color: var(--primary-light);
        }
        .faq-question i {
            color: var(--primary);
            font-size: 0.85rem;
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section .cta-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.1;
            z-index: 0;
        }
        .cta-section .cta-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 17, 33, 0.95), rgba(30, 58, 95, 0.8));
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 1.05rem;
            color: var(--text-light);
            max-width: 520px;
            margin: 0 auto 32px;
        }
        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            padding: 16px 40px;
            background: var(--primary);
            color: #fff;
            border-radius: 50px;
            font-size: 1.05rem;
            font-weight: 700;
            transition: all var(--transition);
            box-shadow: 0 8px 32px rgba(245, 158, 11, 0.35);
        }
        .cta-btn:hover {
            background: var(--primary-dark);
            box-shadow: 0 12px 40px rgba(245, 158, 11, 0.5);
            transform: translateY(-3px);
            color: #fff;
        }
        .cta-btn i {
            font-size: 1rem;
        }
        .cta-stats {
            display: flex;
            justify-content: center;
            gap: 48px;
            margin-top: 40px;
            flex-wrap: wrap;
        }
        .cta-stats .stat {
            text-align: center;
        }
        .cta-stats .stat .num {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary-light);
            display: block;
        }
        .cta-stats .stat .label {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-mid);
            border-top: 1px solid var(--border);
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid var(--border);
        }
        .footer-brand .logo {
            margin-bottom: 16px;
            font-size: 1.2rem;
        }
        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.8;
            max-width: 320px;
        }
        .footer-col h5 {
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 18px;
            color: var(--text-light);
        }
        .footer-col a {
            display: block;
            color: var(--text-muted);
            font-size: 0.88rem;
            padding: 4px 0;
            transition: color var(--transition);
        }
        .footer-col a:hover {
            color: var(--primary-light);
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 24px 0 32px;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        .footer-bottom-links {
            display: flex;
            gap: 20px;
        }
        .footer-bottom-links a {
            color: var(--text-muted);
            transition: color var(--transition);
            font-size: 0.82rem;
        }
        .footer-bottom-links a:hover {
            color: var(--primary-light);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-block {
                grid-template-columns: 1fr;
                padding: 32px;
            }
            .feature-block.reverse {
                direction: ltr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .page-hero h1 {
                font-size: 2.4rem;
            }
        }

        @media (max-width: 768px) {
            .nav {
                display: none;
            }
            .nav-toggle {
                display: flex;
                align-items: center;
                justify-content: center;
            }
            .mobile-nav {
                display: flex;
            }
            .page-hero {
                padding: 100px 0 60px;
                min-height: 300px;
            }
            .page-hero h1 {
                font-size: 1.9rem;
            }
            .page-hero p {
                font-size: 1rem;
            }
            .section {
                padding: 56px 0;
            }
            .section-header h2 {
                font-size: 1.6rem;
            }
            .card-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .feature-block {
                padding: 24px;
            }
            .feature-content h3 {
                font-size: 1.3rem;
            }
            .news-item {
                flex-direction: column;
                align-items: flex-start;
                padding: 16px 20px;
            }
            .news-item .num {
                min-width: auto;
                font-size: 1.2rem;
            }
            .news-item .meta {
                white-space: normal;
                flex-wrap: wrap;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .cta-stats {
                gap: 28px;
            }
            .cta-stats .stat .num {
                font-size: 1.4rem;
            }
            .tags-cloud a {
                padding: 8px 18px;
                font-size: 0.82rem;
            }
            .container {
                padding: 0 16px;
            }
        }

        @media (max-width: 520px) {
            :root {
                --nav-height: 62px;
            }
            .logo {
                font-size: 1.1rem;
            }
            .logo i {
                font-size: 1.3rem;
            }
            .page-hero h1 {
                font-size: 1.5rem;
            }
            .page-hero p {
                font-size: 0.9rem;
            }
            .section-header h2 {
                font-size: 1.3rem;
            }
            .card-body {
                padding: 16px 18px 20px;
            }
            .card-body h3 {
                font-size: 1rem;
            }
            .feature-content h3 {
                font-size: 1.1rem;
            }
            .news-item .info h4 {
                font-size: 0.9rem;
            }
            .cta-btn {
                padding: 14px 28px;
                font-size: 0.95rem;
            }
            .faq-question {
                padding: 14px 18px;
                font-size: 0.9rem;
            }
            .faq-answer {
                font-size: 0.85rem;
            }
        }

        /* ===== 辅助 ===== */
        .text-center {
            text-align: center;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .gap-8 {
            gap: 8px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .live-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #10b981;
            animation: pulse-dot 1.8s infinite;
            margin-right: 4px;
        }
        .hot-label {
            background: var(--accent);
            color: #fff;
            font-size: 0.6rem;
            font-weight: 700;
            padding: 2px 8px;
            border-radius: 4px;
            margin-left: 6px;
            vertical-align: middle;
        }
        .scroll-top {
            position: fixed;
            bottom: 32px;
            right: 32px;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            border: none;
            font-size: 1.2rem;
            cursor: pointer;
            box-shadow: 0 4px 20px rgba(245, 158, 11, 0.3);
            transition: all var(--transition);
            z-index: 100;
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            visibility: hidden;
            transform: translateY(20px);
        }
        .scroll-top.visible {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .scroll-top:hover {
            background: var(--primary-dark);
            transform: translateY(-4px);
            box-shadow: 0 8px 28px rgba(245, 158, 11, 0.45);
        }