/* roulang page: index */
*,
*::before,
*::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --primary: #8b5cf6;
  --primary-dark: #6d3fd8;
  --secondary: #06b6d4;
  --accent: #f472b6;
  --bg-dark: #080816;
  --bg-card: #141428;
  --bg-card-hover: #1c1c3a;
  --bg-section: #0c0c1e;
  --text: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --border: #2d2d5e;
  --border-light: #3d3d6e;
  --glow: rgba(139, 92, 246, 0.25);
  --glow-secondary: rgba(6, 182, 212, 0.2);
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --shadow: 0 8px 32px rgba(0,0,0,0.4);
  --shadow-glow: 0 0 30px rgba(139,92,246,0.15);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --max-w: 1200px;
  --nav-h: 72px;
}
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg-dark);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--secondary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent); }
img { max-width: 100%; height: auto; display: block; }
button, input, textarea { font-family: inherit; }
ul, ol { list-style: none; }
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}
/* header / nav */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(8, 8, 22, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  height: var(--nav-h);
  transition: var(--transition);
}
header.scrolled { box-shadow: 0 4px 30px rgba(0,0,0,0.5); }
nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: 0.02em;
}
.nav-logo i { color: var(--primary); font-size: 1.6rem; }
.nav-logo span { background: linear-gradient(135deg, var(--primary), var(--secondary)); -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 20px;
  border-radius: 50px;
  color: var(--text-muted);
  font-size: 0.92rem;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
}
.nav-links a:hover { color: var(--text); background: rgba(139,92,246,0.08); }
.nav-links a.active {
  color: #fff;
  background: rgba(139,92,246,0.18);
  box-shadow: 0 0 20px rgba(139,92,246,0.15);
}
.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  box-shadow: 0 0 12px var(--primary);
}
.nav-cta {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff !important;
  padding: 8px 24px !important;
  border-radius: 50px !important;
  font-weight: 600;
  box-shadow: 0 4px 20px rgba(139,92,246,0.3);
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 6px 28px rgba(139,92,246,0.4) !important; background: linear-gradient(135deg, var(--primary-dark), var(--primary)) !important; }
.nav-toggle { display: none; background: none; border: none; color: var(--text); font-size: 1.5rem; cursor: pointer; padding: 4px; }
/* hero */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  padding: 120px 0 80px;
  text-align: center;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(8,8,22,0.88) 0%, rgba(8,8,22,0.70) 50%, rgba(8,8,22,0.88) 100%);
  z-index: 1;
}
.hero * { position: relative; z-index: 2; }
.hero-content { max-width: 820px; margin: 0 auto; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(139,92,246,0.15);
  border: 1px solid rgba(139,92,246,0.25);
  padding: 6px 20px;
  border-radius: 50px;
  font-size: 0.85rem;
  color: var(--secondary);
  margin-bottom: 28px;
  backdrop-filter: blur(4px);
}
.hero-badge i { color: var(--accent); }
.hero h1 {
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 24px;
  background: linear-gradient(135deg, #fff 40%, var(--secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero p {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 640px;
  margin: 0 auto 36px;
  line-height: 1.8;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; }
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  padding: 14px 36px;
  border-radius: 50px;
  font-size: 1.05rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 24px rgba(139,92,246,0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 36px rgba(139,92,246,0.45); color: #fff; }
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: transparent;
  color: var(--text);
  padding: 14px 36px;
  border-radius: 50px;
  font-size: 1.05rem;
  font-weight: 600;
  border: 1.5px solid var(--border-light);
  cursor: pointer;
  transition: var(--transition);
}
.btn-secondary:hover { border-color: var(--primary); color: var(--primary); background: rgba(139,92,246,0.06); }
.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  justify-content: center;
  margin-top: 56px;
  padding-top: 40px;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.hero-stat { text-align: center; }
.hero-stat .num { font-size: 1.8rem; font-weight: 800; color: #fff; }
.hero-stat .num span { color: var(--primary); }
.hero-stat .label { font-size: 0.85rem; color: var(--text-dim); margin-top: 4px; }
/* sections */
.section { padding: 90px 0; }
.section-alt { background: var(--bg-section); }
.section-header {
  text-align: center;
  margin-bottom: 56px;
}
.section-header h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  margin-bottom: 16px;
  background: linear-gradient(135deg, #fff, var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-header p { color: var(--text-muted); max-width: 580px; margin: 0 auto; font-size: 1.05rem; }
/* features */
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 28px; }
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 28px;
  text-align: center;
  transition: var(--transition);
}
.feature-card:hover { border-color: var(--primary); transform: translateY(-4px); box-shadow: var(--shadow-glow); background: var(--bg-card-hover); }
.feature-card .icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  font-size: 1.8rem;
  background: rgba(139,92,246,0.12);
  color: var(--primary);
}
.feature-card h3 { font-size: 1.15rem; font-weight: 600; margin-bottom: 10px; }
.feature-card p { font-size: 0.92rem; color: var(--text-muted); line-height: 1.7; }
/* category card */
.category-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 28px; }
.category-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}
.category-card:hover { border-color: var(--primary); transform: translateY(-4px); box-shadow: var(--shadow-glow); }
.category-card .card-img {
  height: 180px;
  background: center center / cover no-repeat;
  position: relative;
}
.category-card .card-img .overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(8,8,22,0.7) 0%, transparent 60%);
}
.category-card .card-body { padding: 24px; }
.category-card .card-body h3 { font-size: 1.2rem; font-weight: 600; margin-bottom: 8px; }
.category-card .card-body p { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 16px; line-height: 1.7; }
.category-card .card-body .tag {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 50px;
  font-size: 0.78rem;
  background: rgba(6,182,212,0.1);
  color: var(--secondary);
  border: 1px solid rgba(6,182,212,0.15);
}
/* posts list */
.posts-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 28px; }
.post-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: var(--transition);
  cursor: pointer;
}
.post-card:hover { border-color: var(--primary); transform: translateY(-3px); box-shadow: var(--shadow-glow); }
.post-card .meta { display: flex; align-items: center; gap: 12px; font-size: 0.82rem; color: var(--text-dim); margin-bottom: 12px; }
.post-card .meta .cat { color: var(--secondary); background: rgba(6,182,212,0.08); padding: 2px 12px; border-radius: 50px; }
.post-card h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 10px; line-height: 1.5; }
.post-card h3 a { color: var(--text); }
.post-card h3 a:hover { color: var(--primary); }
.post-card p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.7; margin-bottom: 12px; }
.post-card .time { font-size: 0.8rem; color: var(--text-dim); }
.empty-msg { text-align: center; padding: 48px 20px; color: var(--text-dim); font-size: 1.05rem; background: var(--bg-card); border-radius: var(--radius); border: 1px dashed var(--border); }
/* process */
.process-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 32px; counter-reset: step; }
.process-step { text-align: center; position: relative; }
.process-step::before {
  counter-increment: step;
  content: counter(step);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  font-weight: 700;
  font-size: 1.2rem;
  box-shadow: 0 0 30px rgba(139,92,246,0.2);
}
.process-step h4 { font-size: 1.05rem; font-weight: 600; margin-bottom: 8px; }
.process-step p { font-size: 0.88rem; color: var(--text-muted); line-height: 1.6; }
/* 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: var(--transition);
}
.faq-item summary {
  padding: 18px 24px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 1rem;
  color: var(--text);
  list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '\f078';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  font-size: 0.8rem;
  color: var(--text-dim);
  transition: var(--transition);
}
.faq-item[open] summary::after { transform: rotate(180deg); color: var(--primary); }
.faq-item[open] { border-color: var(--primary); box-shadow: 0 0 20px rgba(139,92,246,0.08); }
.faq-item .answer { padding: 0 24px 20px; color: var(--text-muted); font-size: 0.92rem; line-height: 1.8; }
/* cta */
.cta-section {
  background: linear-gradient(135deg, rgba(139,92,246,0.06), rgba(6,182,212,0.06));
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  text-align: center;
  padding: 80px 0;
}
.cta-section h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); font-weight: 700; margin-bottom: 16px; }
.cta-section p { color: var(--text-muted); max-width: 520px; margin: 0 auto 32px; font-size: 1.05rem; }
.cta-section .btn-primary { font-size: 1.1rem; padding: 16px 44px; }
/* footer */
footer {
  background: rgba(8,8,22,0.95);
  border-top: 1px solid var(--border);
  padding: 56px 0 32px;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; margin-bottom: 40px; }
.footer-brand .logo { font-size: 1.3rem; font-weight: 800; margin-bottom: 12px; display: flex; align-items: center; gap: 8px; }
.footer-brand .logo i { color: var(--primary); }
.footer-brand p { font-size: 0.9rem; color: var(--text-dim); max-width: 320px; line-height: 1.8; }
.footer-col h4 { font-size: 0.95rem; font-weight: 600; margin-bottom: 16px; color: var(--text); }
.footer-col a { display: block; font-size: 0.88rem; color: var(--text-dim); margin-bottom: 10px; transition: var(--transition); }
.footer-col a:hover { color: var(--secondary); padding-left: 4px; }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  color: var(--text-dim);
}
.footer-bottom a { color: var(--text-dim); }
.footer-bottom a:hover { color: var(--secondary); }
/* mobile */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav-links { display: none; position: absolute; top: var(--nav-h); left: 0; right: 0; background: rgba(8,8,22,0.98); flex-direction: column; padding: 20px 24px; gap: 4px; border-bottom: 1px solid var(--border); }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 20px; width: 100%; border-radius: var(--radius-sm); }
  .nav-links a.active { background: rgba(139,92,246,0.12); }
  .nav-links a.active::after { display: none; }
  .nav-cta { text-align: center; margin-top: 8px; }
  .nav-toggle { display: block; }
  .hero { padding: 100px 0 60px; }
  .hero-stats { gap: 24px; }
  .hero-stat .num { font-size: 1.4rem; }
  .section { padding: 60px 0; }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .posts-list { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .features-grid { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 1.8rem; }
  .hero p { font-size: 0.95rem; }
  .btn-primary, .btn-secondary { padding: 12px 28px; font-size: 0.95rem; }
  .section-header h2 { font-size: 1.5rem; }
  .post-card { padding: 20px; }
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #f04438;
            --primary-dark: #d92d20;
            --primary-light: #f97066;
            --primary-glow: rgba(240, 68, 56, 0.35);
            --accent: #ffd700;
            --accent-glow: rgba(255, 215, 0, 0.25);
            --bg-dark: #0b0e14;
            --bg-card: #131820;
            --bg-card-hover: #1a2230;
            --bg-section: #0f141c;
            --bg-input: #1a2230;
            --text-primary: #f0f2f5;
            --text-secondary: #9aa4b8;
            --text-muted: #6b7a90;
            --border-color: #2a3548;
            --border-glow: rgba(240, 68, 56, 0.2);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45);
            --shadow-glow: 0 0 30px rgba(240, 68, 56, 0.15);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --transition: 0.3s 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);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-dark);
            min-height: 100vh;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4 {
            line-height: 1.25;
            font-weight: 700;
            color: var(--text-primary);
        }
        h1 {
            font-size: clamp(2.2rem, 5.5vw, 3.8rem);
        }
        h2 {
            font-size: clamp(1.7rem, 3.5vw, 2.6rem);
            margin-bottom: 0.5em;
        }
        h3 {
            font-size: clamp(1.15rem, 2vw, 1.5rem);
        }
        h4 {
            font-size: 1.05rem;
        }
        p {
            color: var(--text-secondary);
            margin-bottom: 1em;
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== 霓虹暗色导航 ===== */
        #header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--header-h);
            background: rgba(11, 14, 20, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-color);
            z-index: 1000;
            transition: var(--transition);
        }
        #header .container {
            height: 100%;
        }
        #header nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--text-primary) !important;
            letter-spacing: 0.5px;
        }
        .nav-logo i {
            color: var(--primary);
            font-size: 1.5rem;
            filter: drop-shadow(0 0 8px var(--primary-glow));
        }
        .nav-logo span {
            background: linear-gradient(135deg, var(--text-primary) 60%, var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-toggle {
            display: none;
            background: none;
            color: var(--text-primary);
            font-size: 1.5rem;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.06);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-links a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
        }
        .nav-links a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.05);
        }
        .nav-links a.active {
            color: var(--primary);
            background: rgba(240, 68, 56, 0.1);
            text-shadow: 0 0 20px var(--primary-glow);
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 50%;
            transform: translateX(-50%);
            width: 60%;
            height: 2px;
            background: var(--primary);
            border-radius: 4px;
            box-shadow: 0 0 16px var(--primary-glow);
        }
        .nav-links .nav-cta {
            background: var(--primary);
            color: #fff !important;
            font-weight: 600;
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            box-shadow: 0 4px 18px var(--primary-glow);
            margin-left: 8px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .nav-links .nav-cta:hover {
            background: var(--primary-dark);
            box-shadow: 0 6px 28px var(--primary-glow);
            transform: translateY(-1px);
        }
        .nav-links .nav-cta i {
            font-size: 0.85rem;
        }

        /* ===== Hero Banner ===== */
        .page-hero {
            padding: calc(var(--header-h) + 48px) 0 56px;
            background: var(--bg-section);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center 30%;
            background-blend-mode: overlay;
            position: relative;
            border-bottom: 1px solid var(--border-color);
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 14, 20, 0.88) 40%, rgba(11, 14, 20, 0.6) 80%);
            z-index: 1;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .page-hero h1 {
            margin-bottom: 16px;
            text-shadow: 0 2px 40px rgba(0, 0, 0, 0.6);
        }
        .page-hero h1 i {
            color: var(--accent);
            filter: drop-shadow(0 0 12px var(--accent-glow));
            margin-right: 12px;
        }
        .page-hero .hero-sub {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 680px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }
        .page-hero .hero-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
        }
        .hero-tags .tag {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-color);
            padding: 6px 18px;
            border-radius: 30px;
            font-size: 0.85rem;
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .hero-tags .tag:hover {
            border-color: var(--primary);
            color: var(--primary-light);
            background: rgba(240, 68, 56, 0.08);
        }
        .hero-tags .tag i {
            margin-right: 6px;
            font-size: 0.75rem;
            color: var(--accent);
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: 70px 0;
        }
        .section-alt {
            background: var(--bg-section);
        }
        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 i {
            color: var(--primary);
            margin-right: 10px;
        }
        .section-title p {
            max-width: 600px;
            margin: 8px auto 0;
            font-size: 1.05rem;
        }
        .section-title .title-accent {
            display: inline-block;
            width: 50px;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
            margin-top: 12px;
            box-shadow: 0 0 20px var(--primary-glow);
        }

        /* ===== 分类介绍 ===== */
        .intro-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .intro-block .intro-img {
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-color);
        }
        .intro-block .intro-img img {
            width: 100%;
            height: 360px;
            object-fit: cover;
            transition: var(--transition);
        }
        .intro-block .intro-img:hover img {
            transform: scale(1.02);
        }
        .intro-block .intro-text h3 {
            margin-bottom: 16px;
        }
        .intro-block .intro-text p {
            font-size: 1.02rem;
            line-height: 1.8;
        }
        .intro-block .intro-text .stats {
            display: flex;
            gap: 32px;
            margin-top: 24px;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
        }
        .intro-text .stats .stat-item {
            text-align: center;
        }
        .stats .stat-item .num {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary);
            text-shadow: 0 0 20px var(--primary-glow);
        }
        .stats .stat-item .label {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-top: 2px;
        }

        /* ===== 攻略卡片网格 ===== */
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 28px;
        }
        .guide-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            box-shadow: var(--shadow-card);
        }
        .guide-card:hover {
            transform: translateY(-6px);
            border-color: rgba(240, 68, 56, 0.3);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5), 0 0 30px var(--primary-glow);
            background: var(--bg-card-hover);
        }
        .guide-card .card-img {
            height: 190px;
            overflow: hidden;
            position: relative;
        }
        .guide-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .guide-card:hover .card-img img {
            transform: scale(1.05);
        }
        .guide-card .card-img .badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--primary);
            color: #fff;
            font-size: 0.72rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
            box-shadow: 0 2px 12px var(--primary-glow);
        }
        .guide-card .card-body {
            padding: 22px 22px 24px;
        }
        .guide-card .card-body h3 {
            margin-bottom: 10px;
            font-size: 1.1rem;
        }
        .guide-card .card-body h3 a {
            color: var(--text-primary);
        }
        .guide-card .card-body h3 a:hover {
            color: var(--primary-light);
        }
        .guide-card .card-body p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .guide-card .card-body .meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.82rem;
            color: var(--text-muted);
            border-top: 1px solid var(--border-color);
            padding-top: 14px;
        }
        .guide-card .card-body .meta i {
            margin-right: 4px;
        }
        .guide-card .card-body .meta .tag-sm {
            background: rgba(255, 255, 255, 0.05);
            padding: 2px 12px;
            border-radius: 20px;
            font-size: 0.75rem;
            color: var(--text-secondary);
        }

        /* ===== 热门推荐 ===== */
        .hot-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .hot-item {
            display: flex;
            gap: 18px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            align-items: center;
        }
        .hot-item:hover {
            border-color: rgba(240, 68, 56, 0.3);
            background: var(--bg-card-hover);
            transform: translateX(4px);
        }
        .hot-item .rank {
            font-size: 1.6rem;
            font-weight: 900;
            color: var(--text-muted);
            min-width: 38px;
            text-align: center;
            font-style: italic;
            opacity: 0.5;
        }
        .hot-item:nth-child(1) .rank,
        .hot-item:nth-child(2) .rank,
        .hot-item:nth-child(3) .rank {
            color: var(--accent);
            opacity: 1;
            text-shadow: 0 0 16px var(--accent-glow);
        }
        .hot-item .hot-info h4 {
            font-size: 1rem;
            margin-bottom: 4px;
        }
        .hot-item .hot-info h4 a {
            color: var(--text-primary);
        }
        .hot-item .hot-info h4 a:hover {
            color: var(--primary-light);
        }
        .hot-item .hot-info p {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }
        .hot-item .hot-info .hot-tag {
            display: inline-block;
            background: rgba(255, 215, 0, 0.1);
            color: var(--accent);
            font-size: 0.7rem;
            padding: 2px 12px;
            border-radius: 20px;
            margin-top: 6px;
            border: 1px solid rgba(255, 215, 0, 0.15);
        }

        /* ===== 攻略分类 ===== */
        .cat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 20px;
        }
        .cat-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px 20px;
            text-align: center;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            cursor: pointer;
        }
        .cat-item:hover {
            border-color: var(--primary);
            background: var(--bg-card-hover);
            transform: translateY(-4px);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
        }
        .cat-item .cat-icon {
            font-size: 2.2rem;
            color: var(--primary);
            margin-bottom: 14px;
            filter: drop-shadow(0 0 12px var(--primary-glow));
        }
        .cat-item h4 {
            font-size: 1rem;
            margin-bottom: 6px;
        }
        .cat-item p {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }
        .cat-item .count {
            display: inline-block;
            margin-top: 10px;
            font-size: 0.72rem;
            color: var(--text-muted);
            background: rgba(255, 255, 255, 0.04);
            padding: 2px 14px;
            border-radius: 20px;
        }

        /* ===== 玩家经验 ===== */
        .exp-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 24px;
        }
        .exp-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px 26px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            position: relative;
        }
        .exp-card::before {
            content: '\201C';
            position: absolute;
            top: 12px;
            right: 24px;
            font-size: 4rem;
            color: var(--primary);
            opacity: 0.1;
            font-family: serif;
            line-height: 1;
        }
        .exp-card:hover {
            border-color: rgba(240, 68, 56, 0.25);
            background: var(--bg-card-hover);
            transform: translateY(-4px);
        }
        .exp-card .exp-text {
            font-style: italic;
            color: var(--text-secondary);
            margin-bottom: 16px;
            font-size: 0.95rem;
            line-height: 1.8;
        }
        .exp-card .exp-author {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .exp-card .exp-author .avatar {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--border-color);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--text-muted);
            border: 2px solid var(--border-color);
        }
        .exp-card .exp-author .name {
            font-weight: 600;
            font-size: 0.92rem;
        }
        .exp-card .exp-author .title {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            padding: 0;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(240, 68, 56, 0.2);
        }
        .faq-item details {
            padding: 20px 24px;
            cursor: pointer;
        }
        .faq-item summary {
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            list-style: none;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 0.8rem;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .faq-item details[open] summary::after {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-item details p {
            margin-top: 16px;
            padding-top: 16px;
            border-top: 1px solid var(--border-color);
            font-size: 0.92rem;
            color: var(--text-secondary);
        }

        /* ===== CTA ===== */
        .cta-block {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            text-align: center;
            border: 1px solid var(--border-color);
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            position: relative;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            inset: 0;
            border-radius: var(--radius-lg);
            background: linear-gradient(135deg, rgba(11, 14, 20, 0.85), rgba(11, 14, 20, 0.7));
            z-index: 1;
        }
        .cta-block>* {
            position: relative;
            z-index: 2;
        }
        .cta-block h2 {
            margin-bottom: 12px;
        }
        .cta-block p {
            max-width: 560px;
            margin: 0 auto 28px;
            font-size: 1.05rem;
        }
        .cta-block .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 1.05rem;
            padding: 16px 44px;
            border-radius: var(--radius-sm);
            box-shadow: 0 4px 28px var(--primary-glow);
            transition: var(--transition);
        }
        .cta-block .cta-btn:hover {
            background: var(--primary-dark);
            box-shadow: 0 8px 40px var(--primary-glow);
            transform: translateY(-2px);
            color: #fff;
        }

        /* ===== 页脚 ===== */
        footer {
            background: var(--bg-section);
            border-top: 1px solid var(--border-color);
            padding: 56px 0 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            font-size: 1.3rem;
            font-weight: 800;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-brand .logo i {
            color: var(--primary);
            filter: drop-shadow(0 0 8px var(--primary-glow));
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: var(--text-muted);
            max-width: 340px;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .footer-col a {
            display: block;
            color: var(--text-muted);
            font-size: 0.88rem;
            padding: 4px 0;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        .footer-bottom a {
            color: var(--text-muted);
        }
        .footer-bottom a:hover {
            color: var(--primary-light);
        }
        .footer-bottom span a {
            margin: 0 4px;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .intro-block {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .intro-block .intro-img img {
                height: 260px;
            }
            .hot-list {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-h: 64px;
            }
            .container {
                padding: 0 16px;
            }
            .nav-links {
                position: fixed;
                top: var(--header-h);
                left: 0;
                width: 100%;
                background: rgba(11, 14, 20, 0.98);
                backdrop-filter: blur(16px);
                flex-direction: column;
                padding: 20px 24px 28px;
                gap: 6px;
                border-bottom: 1px solid var(--border-color);
                transform: translateY(-120%);
                opacity: 0;
                transition: var(--transition);
                pointer-events: none;
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
            }
            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: all;
            }
            .nav-links a {
                width: 100%;
                padding: 12px 16px;
                font-size: 1rem;
            }
            .nav-links .nav-cta {
                margin-left: 0;
                justify-content: center;
                margin-top: 8px;
            }
            .nav-toggle {
                display: block;
            }
            .page-hero {
                padding: calc(var(--header-h) + 32px) 0 40px;
            }
            .page-hero .hero-sub {
                font-size: 1rem;
            }
            .section {
                padding: 48px 0;
            }
            .section-title {
                margin-bottom: 32px;
            }
            .guide-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .guide-card .card-img {
                height: 140px;
            }
            .guide-card .card-body {
                padding: 16px;
            }
            .exp-grid {
                grid-template-columns: 1fr;
            }
            .cta-block {
                padding: 40px 24px;
            }
            .cta-block .cta-btn {
                padding: 14px 32px;
                font-size: 0.95rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: center;
                text-align: center;
            }
            .hot-item {
                padding: 14px 16px;
            }
            .cat-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats .stat-item .num {
                font-size: 1.4rem;
            }
        }

        @media (max-width: 520px) {
            .guide-grid {
                grid-template-columns: 1fr;
            }
            .page-hero h1 {
                font-size: 1.8rem;
            }
            .hero-tags .tag {
                font-size: 0.75rem;
                padding: 4px 14px;
            }
            .intro-block .intro-text .stats {
                flex-wrap: wrap;
                gap: 16px;
            }
            .cat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .cat-item {
                padding: 20px 12px;
            }
            .cat-item .cat-icon {
                font-size: 1.6rem;
            }
            .faq-item details {
                padding: 16px 18px;
            }
            .exp-card {
                padding: 20px 18px;
            }
            .cta-block h2 {
                font-size: 1.4rem;
            }
            .footer-brand p {
                max-width: 100%;
            }
        }

        /* ===== 辅助 ===== */
        .text-accent {
            color: var(--accent);
        }
        .text-primary {
            color: var(--primary);
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .gap-16 {
            gap: 16px;
        }
        .flex-center {
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .text-center {
            text-align: center;
        }

/* roulang page: article */
/* ===== 设计变量 ===== */
:root {
  --primary: #00d4ff;
  --primary-glow: rgba(0, 212, 255, 0.3);
  --primary-dim: rgba(0, 212, 255, 0.08);
  --accent: #a855f7;
  --accent-glow: rgba(168, 85, 247, 0.3);
  --cta: #ff6b35;
  --cta-glow: rgba(255, 107, 53, 0.35);
  --bg-deep: #060a12;
  --bg-dark: #0a0e17;
  --bg-card: #111827;
  --bg-card-hover: #1a2332;
  --bg-elevated: #1e293b;
  --border: #1e293b;
  --border-light: #334155;
  --text: #e2e8f0;
  --text-soft: #cbd5e1;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --shadow: 0 4px 20px rgba(0,0,0,0.4);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.5);
  --shadow-glow: 0 0 20px rgba(0, 212, 255, 0.15);
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --max-width: 1280px;
  --nav-height: 70px;
}

/* ===== 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);
  background: var(--bg-deep);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
}
a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: #66e5ff; }
img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
ul, ol { list-style: none; }
button { cursor: pointer; font-family: inherit; border: none; background: none; color: inherit; }
input, textarea { font-family: inherit; font-size: 1rem; }
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.section-pad { padding: 80px 0; }
.section-pad-sm { padding: 48px 0; }

/* ===== 导航 ===== */
#header {
  position: fixed; top: 0; left: 0; width: 100%;
  background: rgba(6, 10, 18, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(0, 212, 255, 0.08);
  z-index: 1000;
  height: var(--nav-height);
  transition: background var(--transition), box-shadow var(--transition);
}
#header.scrolled { background: rgba(6, 10, 18, 0.98); box-shadow: 0 2px 30px rgba(0,0,0,0.5); }
#header .container { height: 100%; display: flex; align-items: center; }
#header nav { display: flex; align-items: center; width: 100%; gap: 32px; }
.nav-logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 1.35rem; font-weight: 800; color: var(--text);
  letter-spacing: 0.5px; flex-shrink: 0;
}
.nav-logo i { color: var(--primary); font-size: 1.5rem; text-shadow: 0 0 12px var(--primary-glow); }
.nav-logo span { background: linear-gradient(135deg, #00d4ff, #a855f7); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.nav-links { display: flex; align-items: center; gap: 8px; margin-left: auto; }
.nav-links a {
  position: relative; padding: 8px 16px; border-radius: var(--radius-sm);
  color: var(--text-soft); font-size: 0.95rem; font-weight: 500;
  transition: all var(--transition); white-space: nowrap;
}
.nav-links a::after {
  content: ''; position: absolute; bottom: 2px; left: 50%; transform: translateX(-50%) scaleX(0);
  width: 60%; height: 2px; background: var(--primary);
  border-radius: 2px; box-shadow: 0 0 10px var(--primary-glow);
  transition: transform var(--transition);
}
.nav-links a:hover { color: var(--text); background: var(--primary-dim); }
.nav-links a:hover::after { transform: translateX(-50%) scaleX(1); }
.nav-links a.active { color: var(--primary); }
.nav-links a.active::after { transform: translateX(-50%) scaleX(1); }
.nav-cta {
  background: linear-gradient(135deg, var(--cta), #e85d2c) !important;
  color: #fff !important; padding: 10px 22px !important; border-radius: 50px !important;
  font-weight: 700 !important; font-size: 0.9rem !important;
  box-shadow: 0 4px 15px var(--cta-glow);
  transition: all var(--transition) !important;
  display: flex; align-items: center; gap: 8px;
}
.nav-cta::after { display: none !important; }
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 25px var(--cta-glow); color: #fff !important; background: linear-gradient(135deg, #ff7a4a, #e85d2c) !important; }
.nav-toggle { display: none; font-size: 1.6rem; color: var(--text); padding: 8px; margin-left: auto; }

/* ===== Hero / Banner ===== */
.article-hero {
  position: relative; margin-top: var(--nav-height); min-height: 380px;
  display: flex; align-items: center; justify-content: center;
  background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  overflow: hidden;
}
.article-hero::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(6,10,18,0.92) 0%, rgba(6,10,18,0.65) 50%, rgba(6,10,18,0.85) 100%);
  z-index: 1;
}
.article-hero::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 120px;
  background: linear-gradient(to top, var(--bg-deep) 0%, transparent 100%);
  z-index: 2;
}
.article-hero .container { position: relative; z-index: 3; text-align: center; padding: 60px 24px; }
.article-breadcrumb {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  font-size: 0.85rem; color: var(--text-muted); margin-bottom: 20px;
}
.article-breadcrumb a { color: var(--text-muted); }
.article-breadcrumb a:hover { color: var(--primary); }
.article-breadcrumb span { color: var(--text-dim); }
.article-category-badge {
  display: inline-block; padding: 4px 18px; border-radius: 50px;
  background: var(--primary-dim); border: 1px solid rgba(0,212,255,0.2);
  color: var(--primary); font-size: 0.8rem; font-weight: 600;
  letter-spacing: 0.5px; margin-bottom: 16px;
}
.article-hero h1 {
  font-size: 2.6rem; font-weight: 800; line-height: 1.25;
  background: linear-gradient(135deg, #fff 0%, #cbd5e1 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  max-width: 800px; margin: 0 auto 20px;
}
.article-hero .article-meta {
  display: flex; align-items: center; justify-content: center; gap: 24px;
  flex-wrap: wrap; color: var(--text-muted); font-size: 0.9rem;
}
.article-hero .article-meta i { margin-right: 6px; color: var(--primary); }

/* ===== 文章正文 ===== */
.article-main { padding: 48px 0 80px; }
.article-layout {
  display: grid; grid-template-columns: 1fr 300px; gap: 48px;
  align-items: start;
}
.article-content {
  background: var(--bg-card); border-radius: var(--radius-lg);
  border: 1px solid var(--border); padding: 40px;
  box-shadow: var(--shadow);
}
.article-content .post-body {
  font-size: 1.05rem; line-height: 1.9; color: var(--text-soft);
}
.article-content .post-body h2 { font-size: 1.6rem; font-weight: 700; margin: 36px 0 16px; color: var(--text); }
.article-content .post-body h3 { font-size: 1.25rem; font-weight: 600; margin: 28px 0 12px; color: var(--text); }
.article-content .post-body p { margin-bottom: 18px; }
.article-content .post-body ul, .article-content .post-body ol { margin-bottom: 18px; padding-left: 24px; }
.article-content .post-body ul { list-style: disc; }
.article-content .post-body ol { list-style: decimal; }
.article-content .post-body li { margin-bottom: 8px; }
.article-content .post-body a { color: var(--primary); border-bottom: 1px solid transparent; }
.article-content .post-body a:hover { border-bottom-color: var(--primary); }
.article-content .post-body blockquote {
  border-left: 4px solid var(--primary); padding: 16px 24px; margin: 24px 0;
  background: var(--primary-dim); border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-soft); font-style: italic;
}
.article-content .post-body img { border-radius: var(--radius); margin: 24px 0; }
.article-content .post-body code {
  background: var(--bg-elevated); padding: 2px 10px; border-radius: 4px;
  font-size: 0.9em; color: var(--primary);
}
.article-content .post-body pre {
  background: var(--bg-deep); padding: 20px; border-radius: var(--radius);
  overflow-x: auto; border: 1px solid var(--border); margin: 24px 0;
}
.article-content .post-body pre code { background: none; padding: 0; color: var(--text-soft); }
.post-footer {
  margin-top: 36px; padding-top: 24px; border-top: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px;
}
.post-tags { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.post-tags span { color: var(--text-muted); font-size: 0.9rem; }
.post-tag {
  padding: 4px 14px; border-radius: 50px; background: var(--bg-elevated);
  color: var(--text-soft); font-size: 0.8rem; border: 1px solid var(--border);
  transition: all var(--transition);
}
.post-tag:hover { background: var(--primary-dim); border-color: var(--primary); color: var(--primary); }
.post-share { display: flex; align-items: center; gap: 10px; }
.post-share span { color: var(--text-muted); font-size: 0.9rem; }
.post-share a {
  width: 36px; height: 36px; display: flex; align-items: center; justify-content: center;
  border-radius: 50%; background: var(--bg-elevated); color: var(--text-soft);
  border: 1px solid var(--border); transition: all var(--transition);
}
.post-share a:hover { background: var(--primary-dim); border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }

/* ===== 侧边栏 ===== */
.article-sidebar {
  display: flex; flex-direction: column; gap: 28px;
}
.sidebar-card {
  background: var(--bg-card); border-radius: var(--radius-lg);
  border: 1px solid var(--border); padding: 28px; box-shadow: var(--shadow-sm);
}
.sidebar-card h3 {
  font-size: 1.1rem; font-weight: 700; color: var(--text); margin-bottom: 18px;
  display: flex; align-items: center; gap: 10px;
}
.sidebar-card h3 i { color: var(--primary); }
.sidebar-list { display: flex; flex-direction: column; gap: 12px; }
.sidebar-list a {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 14px; border-radius: var(--radius-sm);
  background: var(--bg-dark); border: 1px solid var(--border);
  color: var(--text-soft); font-size: 0.9rem;
  transition: all var(--transition);
}
.sidebar-list a:hover { background: var(--primary-dim); border-color: var(--primary); color: var(--primary); transform: translateX(4px); }
.sidebar-list a i { color: var(--primary); font-size: 0.85rem; }
.sidebar-cta {
  text-align: center; padding: 32px 20px;
}
.sidebar-cta .cta-icon { font-size: 2rem; color: var(--cta); margin-bottom: 12px; }
.sidebar-cta h4 { font-size: 1.1rem; font-weight: 700; color: var(--text); margin-bottom: 8px; }
.sidebar-cta p { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 16px; }
.sidebar-cta .btn { width: 100%; justify-content: center; }

/* ===== 相关推荐 ===== */
.related-section {
  background: var(--bg-dark); border-top: 1px solid var(--border);
}
.related-section .section-title-box { text-align: center; margin-bottom: 40px; }
.related-section .section-title-box h2 { font-size: 1.8rem; font-weight: 800; color: var(--text); }
.related-section .section-title-box p { color: var(--text-muted); margin-top: 8px; }
.related-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.related-card {
  background: var(--bg-card); border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid var(--border); transition: all var(--transition);
  box-shadow: var(--shadow-sm);
}
.related-card:hover { transform: translateY(-6px); border-color: var(--primary); box-shadow: var(--shadow-glow); }
.related-card .rc-img {
  height: 180px; background: var(--bg-elevated); position: relative; overflow: hidden;
}
.related-card .rc-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.related-card:hover .rc-img img { transform: scale(1.06); }
.related-card .rc-body { padding: 20px 22px 24px; }
.related-card .rc-body h4 { font-size: 1.05rem; font-weight: 700; color: var(--text); margin-bottom: 8px; }
.related-card .rc-body p { font-size: 0.88rem; color: var(--text-muted); line-height: 1.6; }
.related-card .rc-body .rc-tag {
  display: inline-block; margin-top: 12px; padding: 3px 14px; border-radius: 50px;
  background: var(--primary-dim); color: var(--primary); font-size: 0.75rem; font-weight: 600;
}

/* ===== CTA ===== */
.cta-section {
  background: linear-gradient(135deg, rgba(0,212,255,0.06) 0%, rgba(168,85,247,0.06) 100%);
  border-top: 1px solid var(--border);
}
.cta-box {
  background: var(--bg-card); border-radius: var(--radius-lg); padding: 56px 48px;
  border: 1px solid var(--border); text-align: center;
  box-shadow: var(--shadow); position: relative; overflow: hidden;
}
.cta-box::before {
  content: ''; position: absolute; top: -50%; left: -50%; width: 200%; height: 200%;
  background: radial-gradient(circle at 30% 40%, rgba(0,212,255,0.06) 0%, transparent 60%);
  pointer-events: none;
}
.cta-box h2 { font-size: 1.8rem; font-weight: 800; color: var(--text); margin-bottom: 12px; }
.cta-box p { color: var(--text-muted); max-width: 560px; margin: 0 auto 28px; font-size: 1rem; }
.cta-buttons { display: flex; align-items: center; justify-content: center; gap: 16px; flex-wrap: wrap; }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex; align-items: center; gap: 8px; padding: 12px 30px;
  border-radius: 50px; font-weight: 700; font-size: 0.95rem;
  transition: all var(--transition); border: none;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), #00b4e6);
  color: #fff; box-shadow: 0 4px 20px var(--primary-glow);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px var(--primary-glow); color: #fff; }
.btn-cta {
  background: linear-gradient(135deg, var(--cta), #e85d2c);
  color: #fff; box-shadow: 0 4px 20px var(--cta-glow);
}
.btn-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 30px var(--cta-glow); color: #fff; }
.btn-outline {
  background: transparent; border: 2px solid var(--border-light); color: var(--text-soft);
}
.btn-outline:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-dim); }

/* ===== 页脚 ===== */
footer {
  background: var(--bg-dark); border-top: 2px solid rgba(0,212,255,0.06);
  padding: 56px 0 0;
}
.footer-grid {
  display: grid; grid-template-columns: 1.8fr 1fr 1fr; gap: 40px;
  padding-bottom: 40px; border-bottom: 1px solid var(--border);
}
.footer-brand .logo {
  font-size: 1.3rem; font-weight: 800; margin-bottom: 14px;
  display: flex; align-items: center; gap: 10px;
}
.footer-brand .logo i { color: var(--primary); text-shadow: 0 0 10px var(--primary-glow); }
.footer-brand .logo span { background: linear-gradient(135deg, #00d4ff, #a855f7); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.footer-brand p { color: var(--text-muted); font-size: 0.92rem; line-height: 1.7; max-width: 360px; }
.footer-col h4 { font-size: 1rem; font-weight: 700; color: var(--text); margin-bottom: 16px; }
.footer-col a {
  display: block; padding: 6px 0; color: var(--text-muted); font-size: 0.9rem;
  transition: all var(--transition);
}
.footer-col a:hover { color: var(--primary); padding-left: 6px; }
.footer-bottom {
  display: flex; align-items: center; justify-content: space-between;
  padding: 24px 0; flex-wrap: wrap; gap: 12px;
  color: var(--text-dim); font-size: 0.85rem;
}
.footer-bottom a { color: var(--text-dim); }
.footer-bottom a:hover { color: var(--primary); }

/* ===== 未找到 ===== */
.not-found-box {
  text-align: center; padding: 80px 24px;
}
.not-found-box i { font-size: 4rem; color: var(--text-dim); margin-bottom: 20px; }
.not-found-box h2 { font-size: 1.8rem; color: var(--text); margin-bottom: 12px; }
.not-found-box p { color: var(--text-muted); margin-bottom: 24px; }
.not-found-box .btn { display: inline-flex; }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .article-hero h1 { font-size: 2rem; }
}

@media (max-width: 768px) {
  .nav-links { display: none; position: absolute; top: var(--nav-height); left: 0; right: 0;
    background: rgba(6,10,18,0.98); backdrop-filter: blur(16px); flex-direction: column;
    padding: 20px; gap: 4px; border-bottom: 1px solid var(--border); }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 14px 20px; width: 100%; border-radius: var(--radius-sm); }
  .nav-links a::after { display: none; }
  .nav-links a:hover { background: var(--primary-dim); }
  .nav-cta { margin-top: 8px; justify-content: center; }
  .nav-toggle { display: block; }
  .article-hero { min-height: 300px; }
  .article-hero h1 { font-size: 1.5rem; }
  .article-hero .article-meta { font-size: 0.8rem; gap: 12px; }
  .article-content { padding: 24px 20px; }
  .article-content .post-body { font-size: 0.98rem; }
  .article-sidebar { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: 1fr; }
  .cta-box { padding: 36px 24px; }
  .cta-box h2 { font-size: 1.4rem; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .section-pad { padding: 48px 0; }
  .section-pad-sm { padding: 32px 0; }
}

@media (max-width: 520px) {
  .article-hero h1 { font-size: 1.25rem; }
  .article-content { padding: 16px; }
  .post-footer { flex-direction: column; align-items: flex-start; }
  .cta-buttons { flex-direction: column; width: 100%; }
  .cta-buttons .btn { width: 100%; justify-content: center; }
  .sidebar-cta .btn { width: 100%; }
}