/* roulang page: index */
/* ===== Design Variables ===== */
:root {
  --primary: #0a1628;
  --primary-light: #132847;
  --primary-dark: #050e1a;
  --accent: #c9a84c;
  --accent-light: #e0c56a;
  --accent-dark: #a8892e;
  --accent-glow: rgba(201, 168, 76, 0.25);
  --bg: #f4f6fb;
  --bg-alt: #eef1f7;
  --bg-card: #ffffff;
  --bg-dark: #0a1628;
  --text: #1a2332;
  --text-light: #5a6a7a;
  --text-lighter: #8a9aaa;
  --text-on-dark: #e8ecf2;
  --border: #e2e6ee;
  --border-dark: #2a3a52;
  --shadow-sm: 0 2px 8px rgba(10,22,40,0.06);
  --shadow: 0 4px 24px rgba(10,22,40,0.08);
  --shadow-lg: 0 12px 48px rgba(10,22,40,0.12);
  --shadow-accent: 0 4px 24px rgba(201,168,76,0.25);
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --max-width: 1200px;
  --header-height: 72px;
}

/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { color: var(--accent-dark); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent); }
img { max-width: 100%; height: auto; display: block; }
button, input, textarea, select { font-family: inherit; font-size: inherit; }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { line-height: 1.25; font-weight: 700; color: var(--text); }
h1 { font-size: clamp(2rem, 4.5vw, 3.2rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); }
h3 { font-size: clamp(1.1rem, 1.8vw, 1.4rem); }
p { margin-bottom: 0.8rem; color: var(--text-light); }
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}
.section { padding: 80px 0; }
.section-alt { background: var(--bg-alt); }
.section-dark { background: var(--bg-dark); color: var(--text-on-dark); }
.section-dark h2, .section-dark h3 { color: #fff; }
.section-dark p { color: var(--text-lighter); }
.section-title {
  text-align: center;
  margin-bottom: 12px;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.section-sub {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 48px;
  font-size: 1.05rem;
  color: var(--text-light);
}
.section-dark .section-sub { color: var(--text-lighter); }
.tag {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 50px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  background: var(--accent);
  color: var(--primary-dark);
  margin-bottom: 16px;
}
.tag-outline {
  background: transparent;
  border: 1.5px solid var(--accent);
  color: var(--accent);
}
.section-dark .tag { background: var(--accent); color: var(--primary-dark); }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 32px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  line-height: 1.4;
}
.btn-primary {
  background: var(--accent);
  color: var(--primary-dark);
  box-shadow: var(--shadow-accent);
}
.btn-primary:hover {
  background: var(--accent-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(201,168,76,0.35);
  color: var(--primary-dark);
}
.btn-outline {
  background: transparent;
  border: 2px solid var(--accent);
  color: var(--accent);
}
.btn-outline:hover {
  background: var(--accent);
  color: var(--primary-dark);
  transform: translateY(-2px);
}
.btn-white {
  background: #fff;
  color: var(--primary);
  box-shadow: var(--shadow);
}
.btn-white:hover {
  background: var(--accent-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: var(--primary);
}
.btn-sm { padding: 8px 20px; font-size: 0.85rem; }
.btn-lg { padding: 16px 44px; font-size: 1.05rem; }

/* ===== Header & Nav ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 22, 40, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(201, 168, 76, 0.15);
  height: var(--header-height);
  transition: background var(--transition);
}
.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}
.logo {
  font-size: 1.2rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.logo:hover { color: var(--accent); }
.logo-icon {
  width: 36px;
  height: 36px;
  background: var(--accent);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-dark);
  font-size: 1.1rem;
  font-weight: 900;
}
.nav { display: flex; align-items: center; gap: 8px; }
.nav a {
  padding: 8px 18px;
  border-radius: 50px;
  font-size: 0.88rem;
  font-weight: 500;
  color: rgba(255,255,255,0.75);
  transition: all var(--transition);
  text-decoration: none;
}
.nav a:hover { color: #fff; background: rgba(201,168,76,0.12); }
.nav a.active {
  color: var(--accent);
  background: rgba(201,168,76,0.15);
  font-weight: 600;
}
.nav-cta {
  background: var(--accent) !important;
  color: var(--primary-dark) !important;
  font-weight: 600 !important;
  padding: 8px 22px !important;
}
.nav-cta:hover { background: var(--accent-light) !important; transform: translateY(-1px); }
.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.mobile-toggle span {
  display: block;
  width: 26px;
  height: 2.5px;
  background: #fff;
  border-radius: 4px;
  transition: all var(--transition);
}

/* ===== Hero ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  background: var(--primary-dark);
  overflow: hidden;
  padding-top: var(--header-height);
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  opacity: 0.4;
  mix-blend-mode: overlay;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10,22,40,0.92) 0%, rgba(10,22,40,0.70) 50%, rgba(10,22,40,0.88) 100%);
}
.hero .container { position: relative; z-index: 2; }
.hero-content {
  max-width: 720px;
  padding: 40px 0;
}
.hero-tag {
  display: inline-block;
  padding: 6px 20px;
  border-radius: 50px;
  background: rgba(201,168,76,0.18);
  border: 1px solid rgba(201,168,76,0.3);
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: 24px;
  backdrop-filter: blur(4px);
}
.hero h1 {
  color: #fff;
  font-weight: 900;
  margin-bottom: 20px;
  letter-spacing: -0.03em;
  line-height: 1.12;
}
.hero h1 span { color: var(--accent); }
.hero p {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.7);
  max-width: 560px;
  margin-bottom: 36px;
  line-height: 1.7;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.hero-stat h3 { color: var(--accent); font-size: 1.8rem; font-weight: 800; }
.hero-stat p { color: rgba(255,255,255,0.5); font-size: 0.85rem; margin: 0; }

/* ===== Features / 核心优势 ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.feature-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 36px 28px;
  box-shadow: var(--shadow);
  transition: all var(--transition);
  border: 1px solid var(--border);
  text-align: center;
}
.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent);
}
.feature-icon {
  width: 60px;
  height: 60px;
  background: rgba(201,168,76,0.12);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 1.6rem;
  color: var(--accent);
}
.feature-card h3 { margin-bottom: 12px; font-weight: 700; }
.feature-card p { font-size: 0.92rem; margin: 0; }

/* ===== Intro / 平台介绍 ===== */
.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.intro-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  position: relative;
}
.intro-image img { width: 100%; height: 100%; object-fit: cover; }
.intro-badge {
  position: absolute;
  bottom: 20px;
  left: 20px;
  background: rgba(10,22,40,0.85);
  backdrop-filter: blur(8px);
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  color: #fff;
  font-size: 0.85rem;
  border: 1px solid rgba(201,168,76,0.3);
}
.intro-badge span { color: var(--accent); font-weight: 700; }
.intro-text h2 { margin-bottom: 16px; }
.intro-text p { margin-bottom: 16px; }
.intro-list { margin-top: 20px; }
.intro-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
}
.intro-list li:last-child { border-bottom: none; }
.intro-list i { color: var(--accent); font-size: 1rem; width: 20px; }

/* ===== Category / 分类入口 ===== */
.category-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.category-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 32px 28px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.category-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent);
}
.category-card .cat-icon {
  width: 48px;
  height: 48px;
  background: rgba(201,168,76,0.12);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: var(--accent);
}
.category-card h3 { font-weight: 700; }
.category-card p { font-size: 0.92rem; margin: 0; flex: 1; }
.category-card .btn { align-self: flex-start; }

/* ===== Stats / 数据统计 ===== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  text-align: center;
}
.stat-card {
  background: rgba(255,255,255,0.04);
  border-radius: var(--radius);
  padding: 36px 20px;
  border: 1px solid rgba(255,255,255,0.06);
  transition: all var(--transition);
}
.stat-card:hover { border-color: rgba(201,168,76,0.3); transform: translateY(-2px); }
.stat-number {
  font-size: 2.4rem;
  font-weight: 900;
  color: var(--accent);
  line-height: 1.2;
  margin-bottom: 8px;
}
.stat-label { font-size: 0.9rem; color: var(--text-lighter); margin: 0; }

/* ===== Latest / 最新资讯 ===== */
.latest-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.post-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}
.post-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent);
}
.post-card-img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  background: var(--bg-alt);
}
.post-card-body { padding: 20px 24px 24px; flex: 1; display: flex; flex-direction: column; }
.post-card-cat {
  display: inline-block;
  padding: 2px 12px;
  border-radius: 50px;
  background: rgba(201,168,76,0.12);
  color: var(--accent-dark);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 10px;
  width: fit-content;
}
.post-card h3 { font-size: 1.05rem; margin-bottom: 8px; font-weight: 700; }
.post-card h3 a { color: var(--text); text-decoration: none; }
.post-card h3 a:hover { color: var(--accent-dark); }
.post-card p { font-size: 0.88rem; margin: 0 0 12px; flex: 1; color: var(--text-light); }
.post-card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--text-lighter);
  border-top: 1px solid var(--border);
  padding-top: 12px;
}
.post-card-meta i { margin-right: 4px; }
.empty-posts {
  grid-column: 1 / -1;
  text-align: center;
  padding: 48px 20px;
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px dashed var(--border);
  color: var(--text-lighter);
  font-size: 0.95rem;
}

/* ===== Process / 注册流程 ===== */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step;
}
.process-step {
  text-align: center;
  padding: 32px 20px;
  background: rgba(255,255,255,0.03);
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.06);
  position: relative;
  transition: all var(--transition);
}
.process-step:hover { border-color: rgba(201,168,76,0.3); transform: translateY(-4px); }
.process-step::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  top: 16px;
  left: 16px;
  width: 32px;
  height: 32px;
  background: var(--accent);
  color: var(--primary-dark);
  font-weight: 800;
  font-size: 0.9rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.process-icon {
  font-size: 2rem;
  color: var(--accent);
  margin-bottom: 16px;
  margin-top: 8px;
}
.process-step h3 { font-size: 1rem; color: #fff; margin-bottom: 8px; }
.process-step p { font-size: 0.85rem; margin: 0; color: var(--text-lighter); }

/* ===== FAQ ===== */
.faq-list { max-width: 800px; 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: all var(--transition);
}
.faq-item:hover { border-color: var(--accent); }
.faq-question {
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.98rem;
  color: var(--text);
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  gap: 16px;
  transition: background var(--transition);
}
.faq-question:hover { background: rgba(201,168,76,0.04); }
.faq-question i { color: var(--accent); font-size: 0.85rem; transition: transform var(--transition); flex-shrink: 0; }
.faq-item.active .faq-question i { transform: rotate(180deg); }
.faq-answer {
  padding: 0 24px 20px;
  font-size: 0.92rem;
  color: var(--text-light);
  line-height: 1.7;
  display: none;
}
.faq-item.active .faq-answer { display: block; }

/* ===== CTA ===== */
.cta-section {
  background: var(--primary);
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
  opacity: 0.15;
  mix-blend-mode: overlay;
}
.cta-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 60px 0;
}
.cta-content h2 { color: #fff; margin-bottom: 16px; }
.cta-content p { color: rgba(255,255,255,0.7); max-width: 560px; margin: 0 auto 32px; font-size: 1.05rem; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ===== Footer ===== */
.footer {
  background: var(--primary-dark);
  border-top: 1px solid rgba(201,168,76,0.1);
  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: 16px; }
.footer-brand p { font-size: 0.88rem; color: var(--text-lighter); max-width: 320px; }
.footer-social { display: flex; gap: 12px; margin-top: 16px; }
.footer-social a {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-lighter);
  transition: all var(--transition);
  font-size: 0.95rem;
}
.footer-social a:hover { background: var(--accent); color: var(--primary-dark); }
.footer h4 { color: #fff; font-size: 0.95rem; margin-bottom: 16px; font-weight: 700; }
.footer ul li { margin-bottom: 10px; }
.footer ul a {
  color: var(--text-lighter);
  font-size: 0.88rem;
  transition: color var(--transition);
  text-decoration: none;
}
.footer ul a:hover { color: var(--accent); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 20px;
  text-align: center;
  font-size: 0.82rem;
  color: var(--text-lighter);
}
.footer-bottom a { color: var(--accent); text-decoration: none; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 768px) {
  .nav { display: none; flex-direction: column; position: absolute; top: var(--header-height); left: 0; right: 0; background: rgba(10,22,40,0.98); backdrop-filter: blur(20px); padding: 16px 24px; border-bottom: 1px solid rgba(201,168,76,0.15); gap: 4px; }
  .nav.open { display: flex; }
  .nav a { padding: 12px 18px; border-radius: 8px; }
  .mobile-toggle { display: flex; }
  .hero h1 { font-size: 2rem; }
  .hero p { font-size: 1rem; }
  .hero-stats { gap: 24px; flex-wrap: wrap; }
  .hero-stat h3 { font-size: 1.4rem; }
  .intro-grid { grid-template-columns: 1fr; gap: 32px; }
  .features-grid { grid-template-columns: 1fr; }
  .category-grid { grid-template-columns: 1fr; }
  .latest-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .process-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .section { padding: 56px 0; }
  .cta-content { padding: 40px 0; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .hero-actions { flex-direction: column; }
  .hero-stats { flex-direction: column; gap: 16px; }
  .stats-grid { grid-template-columns: 1fr; }
  .cta-actions { flex-direction: column; align-items: center; }
  .btn-lg { padding: 14px 32px; width: 100%; text-align: center; justify-content: center; }
}

/* ===== Helper ===== */
.text-accent { color: var(--accent); }
.text-center { text-align: center; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.gap-12 { gap: 12px; }
.flex-center { display: flex; align-items: center; justify-content: center; }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #e8513a;
            --primary-dark: #cc3a24;
            --primary-light: #fff0ed;
            --accent: #f5a623;
            --accent-dark: #d4891a;
            --bg-body: #f8f9fc;
            --bg-white: #ffffff;
            --bg-card: #ffffff;
            --bg-dark: #1a1a2e;
            --bg-footer: #0f0f1a;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-muted: #8888a8;
            --text-inverse: #ffffff;
            --border: #e8e8f0;
            --border-light: #f0f0f8;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.12);
            --shadow-hover: 0 12px 36px rgba(232, 81, 58, 0.15);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --max-width: 1200px;
            --nav-height: 72px;
            --section-spacing: 80px;
            --section-spacing-mobile: 56px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            color: var(--text-primary);
            background: var(--bg-body);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: var(--nav-height);
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.25;
            font-weight: 700;
            color: var(--text-primary);
        }
        .container {
            width: 100%;
            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(--nav-height);
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.02);
            transition: var(--transition);
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.02em;
        }
        .logo:hover {
            color: var(--primary);
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            border-radius: var(--radius-sm);
            font-size: 1.2rem;
            font-weight: 700;
            flex-shrink: 0;
        }
        .nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
        }
        .nav a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .nav a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }
        .nav a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 2px;
            background: var(--primary);
        }
        .nav a.nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            padding: 8px 22px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            box-shadow: 0 4px 12px rgba(232, 81, 58, 0.25);
        }
        .nav a.nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(232, 81, 58, 0.35);
            color: #fff;
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
        }
        .nav a.nav-cta i {
            margin-right: 6px;
        }

        /* Hamburger (mobile) */
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 6px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .hamburger span {
            display: block;
            width: 26px;
            height: 3px;
            background: var(--text-primary);
            border-radius: 3px;
            transition: var(--transition);
            transform-origin: center;
        }
        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 6px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -6px);
        }

        @media (max-width: 768px) {
            .hamburger {
                display: flex;
            }
            .nav {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                flex-direction: column;
                padding: 16px 24px 24px;
                gap: 4px;
                border-bottom: 1px solid var(--border-light);
                box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
                transform: translateY(-110%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
            }
            .nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav a {
                width: 100%;
                padding: 12px 16px;
                font-size: 1rem;
                border-radius: var(--radius-sm);
            }
            .nav a.active::after {
                display: none;
            }
            .nav a.nav-cta {
                text-align: center;
                margin-top: 8px;
            }
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb {
            padding: 20px 0 0;
            font-size: 0.9rem;
            color: var(--text-muted);
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            align-items: center;
        }
        .breadcrumb a {
            color: var(--text-secondary);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: var(--border);
            margin: 0 4px;
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 500;
        }

        /* ===== Page Hero / Banner ===== */
        .page-banner {
            position: relative;
            padding: 60px 0 72px;
            background: linear-gradient(135deg, var(--bg-dark) 0%, #2a1a3a 100%);
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center / cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 26, 46, 0.85) 0%, rgba(42, 26, 58, 0.7) 100%);
            z-index: 1;
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
        }
        .page-banner h1 {
            font-size: 2.8rem;
            color: var(--text-inverse);
            margin-bottom: 12px;
            max-width: 720px;
            letter-spacing: -0.02em;
        }
        .page-banner p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 600px;
            line-height: 1.7;
        }
        .page-banner .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            padding: 6px 16px;
            border-radius: 100px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 20px;
            border: 1px solid rgba(255, 255, 255, 0.08);
        }
        .page-banner .banner-badge i {
            color: var(--accent);
        }

        @media (max-width: 768px) {
            .page-banner {
                padding: 40px 0 52px;
                min-height: 240px;
            }
            .page-banner h1 {
                font-size: 1.9rem;
            }
            .page-banner p {
                font-size: 1rem;
            }
        }
        @media (max-width: 520px) {
            .page-banner h1 {
                font-size: 1.6rem;
            }
        }

        /* ===== Section Shared ===== */
        .section {
            padding: var(--section-spacing) 0;
        }
        .section-alt {
            background: var(--bg-white);
        }
        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 {
            font-size: 2.2rem;
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }
        .section-title p {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.7;
        }
        .section-title .title-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            padding: 4px 16px;
            border-radius: 100px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 12px;
        }

        @media (max-width: 768px) {
            .section {
                padding: var(--section-spacing-mobile) 0;
            }
            .section-title {
                margin-bottom: 32px;
            }
            .section-title h2 {
                font-size: 1.7rem;
            }
            .section-title p {
                font-size: 0.95rem;
            }
        }

        /* ===== Steps ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }
        .step-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 32px 24px 28px;
            text-align: center;
            position: relative;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .step-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary);
        }
        .step-card::before {
            counter-increment: step;
            content: counter(step);
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            width: 32px;
            height: 32px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.95rem;
            font-weight: 700;
            box-shadow: 0 4px 12px rgba(232, 81, 58, 0.25);
        }
        .step-card .step-icon {
            font-size: 2.4rem;
            color: var(--primary);
            margin-bottom: 16px;
            margin-top: 4px;
        }
        .step-card h3 {
            font-size: 1.15rem;
            margin-bottom: 8px;
        }
        .step-card p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        @media (max-width: 1024px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
        }
        @media (max-width: 520px) {
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

        /* ===== Cards Grid ===== */
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .card-item {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
        }
        .card-item:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
        }
        .card-item .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            background: var(--bg-body);
        }
        .card-item .card-body {
            padding: 20px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-item .card-tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: var(--primary-light);
            color: var(--primary);
            padding: 2px 12px;
            border-radius: 100px;
            font-size: 0.78rem;
            font-weight: 600;
            margin-bottom: 10px;
            width: fit-content;
        }
        .card-item h3 {
            font-size: 1.15rem;
            margin-bottom: 8px;
        }
        .card-item p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 16px;
        }
        .card-item .card-link {
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
        }
        .card-item .card-link i {
            transition: var(--transition);
            font-size: 0.8rem;
        }
        .card-item .card-link:hover i {
            transform: translateX(4px);
        }

        @media (max-width: 1024px) {
            .cards-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
        }
        @media (max-width: 520px) {
            .cards-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .card-item .card-img {
                height: 160px;
            }
        }

        /* ===== 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-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .faq-item:hover {
            border-color: var(--border);
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            padding: 18px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-weight: 600;
            font-size: 1.02rem;
            color: var(--text-primary);
            user-select: none;
            gap: 16px;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question i {
            transition: var(--transition);
            color: var(--text-muted);
            flex-shrink: 0;
            font-size: 0.9rem;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 24px 20px;
        }

        @media (max-width: 768px) {
            .faq-question {
                padding: 14px 16px;
                font-size: 0.95rem;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 16px;
            }
        }

        /* ===== Tips / Alert ===== */
        .tips-block {
            background: linear-gradient(135deg, var(--primary-light), #fff8f0);
            border: 1px solid rgba(232, 81, 58, 0.15);
            border-radius: var(--radius-md);
            padding: 32px 36px;
            display: flex;
            gap: 24px;
            align-items: flex-start;
            box-shadow: var(--shadow-sm);
        }
        .tips-block .tips-icon {
            font-size: 2.2rem;
            color: var(--primary);
            flex-shrink: 0;
            margin-top: 2px;
        }
        .tips-block h3 {
            font-size: 1.2rem;
            margin-bottom: 8px;
        }
        .tips-block ul {
            list-style: disc;
            padding-left: 20px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.8;
        }
        .tips-block ul li::marker {
            color: var(--primary);
        }

        @media (max-width: 768px) {
            .tips-block {
                flex-direction: column;
                padding: 24px 20px;
                gap: 12px;
            }
            .tips-block .tips-icon {
                font-size: 1.8rem;
            }
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--bg-dark) 0%, #2a1a3a 100%);
            padding: 72px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center / cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 2.2rem;
            color: var(--text-inverse);
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 520px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }
        .cta-section .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            padding: 16px 40px;
            border-radius: var(--radius-sm);
            font-size: 1.1rem;
            font-weight: 700;
            box-shadow: 0 8px 28px rgba(232, 81, 58, 0.3);
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }
        .cta-section .btn-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(232, 81, 58, 0.45);
            color: #fff;
        }
        .cta-section .btn-cta i {
            font-size: 1rem;
        }

        @media (max-width: 768px) {
            .cta-section {
                padding: 52px 0;
            }
            .cta-section h2 {
                font-size: 1.7rem;
            }
            .cta-section p {
                font-size: 0.95rem;
            }
            .cta-section .btn-cta {
                padding: 14px 32px;
                font-size: 1rem;
            }
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-footer);
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-brand .logo {
            color: #fff;
            margin-bottom: 14px;
            font-size: 1.25rem;
        }
        .footer-brand .logo .logo-icon {
            width: 36px;
            height: 36px;
            font-size: 1.05rem;
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            max-width: 320px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 18px;
        }
        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 50%;
            color: rgba(255, 255, 255, 0.6);
            font-size: 1.05rem;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .footer h4 {
            color: #fff;
            font-size: 1rem;
            margin-bottom: 16px;
            font-weight: 600;
            letter-spacing: 0.01em;
        }
        .footer ul li {
            margin-bottom: 8px;
        }
        .footer ul li a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer ul li a:hover {
            color: var(--primary);
        }
        .footer-bottom {
            padding: 20px 0;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.35);
        }
        .footer-bottom p {
            margin: 0;
        }

        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        /* ===== Responsive Utilities ===== */
        @media (max-width: 768px) {
            body {
                padding-top: 64px;
            }
            :root {
                --nav-height: 64px;
            }
        }

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

        /* ===== Focus visible ===== */
        :focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

        /* ===== Skeleton / extra spacing ===== */
        .mt-8 {
            margin-top: 8px;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .text-center {
            text-align: center;
        }
        .gap-8 {
            gap: 8px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }

/* roulang page: article */
:root {
  --primary: #0f1a2e;
  --primary-light: #1a2d4a;
  --accent: #c9a84c;
  --accent-hover: #d9b85c;
  --accent-glow: rgba(201, 168, 76, 0.25);
  --bg: #f8f7f4;
  --bg-card: #ffffff;
  --bg-dark: #0b1320;
  --text: #1a1a2e;
  --text-light: #5a5a7a;
  --text-white: #f0ede8;
  --border: #e8e4de;
  --border-light: #f0ede8;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --shadow: 0 4px 24px rgba(15, 26, 46, 0.08);
  --shadow-lg: 0 12px 48px rgba(15, 26, 46, 0.14);
  --shadow-accent: 0 4px 20px rgba(201, 168, 76, 0.3);
  --space-xs: 6px;
  --space-sm: 12px;
  --space-md: 24px;
  --space-lg: 48px;
  --space-xl: 80px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { font-family: var(--font); color: var(--text); background: var(--bg); line-height: 1.7; font-size: 16px; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent); }
img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
ul, ol { list-style: none; }
input, button, textarea { font-family: inherit; font-size: 1rem; outline: none; border: none; }
button { cursor: pointer; background: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 var(--space-md); }
@media (max-width: 768px) { .container { padding: 0 var(--space-sm); } }

/* ===== Header & Nav ===== */
.header { position: sticky; top: 0; z-index: 1000; background: rgba(15, 26, 46, 0.96); backdrop-filter: blur(16px); border-bottom: 1px solid rgba(201, 168, 76, 0.15); }
.header .container { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.logo { display: flex; align-items: center; gap: var(--space-sm); font-size: 1.35rem; font-weight: 700; color: var(--accent); letter-spacing: 1px; }
.logo:hover { color: var(--accent); opacity: 0.9; }
.logo-icon { display: inline-flex; align-items: center; justify-content: center; width: 38px; height: 38px; background: var(--accent); color: var(--primary); border-radius: var(--radius-sm); font-size: 1.2rem; font-weight: 800; }
.nav { display: flex; align-items: center; gap: var(--space-md); }
.nav a { color: rgba(240, 237, 232, 0.75); font-size: 0.95rem; font-weight: 500; padding: 6px 4px; position: relative; transition: var(--transition); }
.nav a::after { content: ''; position: absolute; bottom: -2px; left: 0; width: 0; height: 2px; background: var(--accent); transition: var(--transition); border-radius: 2px; }
.nav a:hover { color: var(--accent); }
.nav a:hover::after { width: 100%; }
.nav a.active { color: var(--accent); }
.nav a.active::after { width: 100%; }
.nav-cta { background: var(--accent); color: var(--primary) !important; padding: 8px 20px !important; border-radius: 50px; font-weight: 600; font-size: 0.9rem; display: flex; align-items: center; gap: 6px; box-shadow: 0 2px 12px var(--accent-glow); transition: var(--transition); }
.nav-cta:hover { background: var(--accent-hover); box-shadow: 0 4px 24px var(--accent-glow); transform: translateY(-1px); color: var(--primary) !important; }
.nav-cta::after { display: none !important; }
.nav-toggle { display: none; background: none; color: var(--text-white); font-size: 1.5rem; padding: 4px; }
@media (max-width: 768px) {
  .nav-toggle { display: block; }
  .nav { position: fixed; top: 68px; left: 0; right: 0; background: rgba(15, 26, 46, 0.98); backdrop-filter: blur(20px); flex-direction: column; padding: var(--space-md); gap: var(--space-sm); transform: translateY(-120%); opacity: 0; pointer-events: none; transition: var(--transition); border-bottom: 1px solid rgba(201, 168, 76, 0.1); }
  .nav.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav a { width: 100%; padding: 10px 0; font-size: 1.05rem; }
  .nav a::after { bottom: 4px; }
  .nav-cta { justify-content: center; margin-top: 8px; }
}

/* ===== Hero Banner ===== */
.article-hero { position: relative; min-height: 380px; display: flex; align-items: center; justify-content: center; text-align: center; padding: var(--space-xl) 0; background: linear-gradient(135deg, rgba(15, 26, 46, 0.92), rgba(11, 19, 32, 0.88)), url('/assets/images/backpic/back-1.png') center/cover no-repeat; overflow: hidden; }
.article-hero::before { content: ''; position: absolute; inset: 0; background: radial-gradient(ellipse at 30% 40%, rgba(201, 168, 76, 0.10), transparent 70%); }
.article-hero .container { position: relative; z-index: 2; max-width: 800px; }
.article-hero .hero-badge { display: inline-block; padding: 4px 16px; background: rgba(201, 168, 76, 0.18); border: 1px solid rgba(201, 168, 76, 0.3); border-radius: 50px; color: var(--accent); font-size: 0.8rem; font-weight: 500; letter-spacing: 0.5px; margin-bottom: var(--space-md); text-transform: uppercase; }
.article-hero h1 { font-size: 2.8rem; font-weight: 800; color: var(--text-white); line-height: 1.25; margin-bottom: var(--space-sm); letter-spacing: -0.5px; }
.article-hero .hero-meta { display: flex; justify-content: center; gap: var(--space-md); color: rgba(240, 237, 232, 0.6); font-size: 0.9rem; margin-top: var(--space-sm); flex-wrap: wrap; }
.article-hero .hero-meta i { margin-right: 4px; }
.article-hero .hero-meta span { display: flex; align-items: center; gap: 4px; }
@media (max-width: 768px) {
  .article-hero { min-height: 280px; padding: var(--space-lg) 0; }
  .article-hero h1 { font-size: 1.8rem; }
  .article-hero .hero-meta { gap: var(--space-sm); font-size: 0.8rem; }
}

/* ===== Breadcrumb ===== */
.breadcrumb { padding: var(--space-sm) 0; background: var(--bg); border-bottom: 1px solid var(--border); }
.breadcrumb .container { display: flex; align-items: center; gap: 8px; font-size: 0.85rem; color: var(--text-light); }
.breadcrumb a { color: var(--text-light); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb i { font-size: 0.7rem; color: var(--text-light); }

/* ===== Article Content ===== */
.article-main { padding: var(--space-xl) 0; }
.article-layout { display: grid; grid-template-columns: 1fr 320px; gap: var(--space-xl); }
.article-body { background: var(--bg-card); border-radius: var(--radius); padding: var(--space-lg); box-shadow: var(--shadow); border: 1px solid var(--border-light); }
.article-body .featured-image { width: 100%; border-radius: var(--radius-sm); margin-bottom: var(--space-lg); max-height: 480px; object-fit: cover; }
.article-body .content { font-size: 1.05rem; line-height: 1.9; color: var(--text); }
.article-body .content p { margin-bottom: 1.2em; }
.article-body .content h2, .article-body .content h3 { margin-top: 1.8em; margin-bottom: 0.6em; font-weight: 700; color: var(--primary); }
.article-body .content h2 { font-size: 1.6rem; }
.article-body .content h3 { font-size: 1.25rem; }
.article-body .content ul, .article-body .content ol { margin-bottom: 1.2em; padding-left: 1.5em; }
.article-body .content li { margin-bottom: 0.4em; list-style: disc; }
.article-body .content a { color: var(--accent); text-decoration: underline; }
.article-body .content a:hover { color: var(--accent-hover); }
.article-body .content blockquote { border-left: 4px solid var(--accent); padding: var(--space-sm) var(--space-md); margin: 1.2em 0; background: rgba(201, 168, 76, 0.06); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; color: var(--text-light); font-style: italic; }
.article-body .content img { border-radius: var(--radius-sm); margin: 1.2em 0; }
.article-tags { display: flex; flex-wrap: wrap; gap: var(--space-sm); margin-top: var(--space-lg); padding-top: var(--space-md); border-top: 1px solid var(--border); }
.article-tags .tag { padding: 4px 14px; background: rgba(201, 168, 76, 0.1); border: 1px solid rgba(201, 168, 76, 0.2); border-radius: 50px; font-size: 0.8rem; color: var(--accent); transition: var(--transition); }
.article-tags .tag:hover { background: var(--accent); color: var(--primary); border-color: var(--accent); }

/* ===== Sidebar ===== */
.article-sidebar { display: flex; flex-direction: column; gap: var(--space-md); }
.sidebar-card { background: var(--bg-card); border-radius: var(--radius); padding: var(--space-md); box-shadow: var(--shadow); border: 1px solid var(--border-light); }
.sidebar-card h3 { font-size: 1.1rem; font-weight: 700; color: var(--primary); margin-bottom: var(--space-sm); padding-bottom: var(--space-xs); border-bottom: 2px solid var(--accent); display: inline-block; }
.sidebar-card .list-item { display: flex; gap: var(--space-sm); padding: var(--space-sm) 0; border-bottom: 1px solid var(--border-light); }
.sidebar-card .list-item:last-child { border-bottom: none; }
.sidebar-card .list-item img { width: 70px; height: 70px; border-radius: var(--radius-sm); object-fit: cover; flex-shrink: 0; }
.sidebar-card .list-item .info { flex: 1; min-width: 0; }
.sidebar-card .list-item .info a { font-size: 0.9rem; font-weight: 600; color: var(--text); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.sidebar-card .list-item .info a:hover { color: var(--accent); }
.sidebar-card .list-item .info .date { font-size: 0.75rem; color: var(--text-light); margin-top: 4px; display: block; }
.sidebar-cta { background: linear-gradient(135deg, var(--primary), var(--primary-light)); border: 1px solid rgba(201, 168, 76, 0.2); text-align: center; padding: var(--space-lg) var(--space-md); }
.sidebar-cta h4 { color: var(--accent); font-size: 1.2rem; margin-bottom: var(--space-sm); }
.sidebar-cta p { color: rgba(240, 237, 232, 0.7); font-size: 0.9rem; margin-bottom: var(--space-md); }
.sidebar-cta .btn { background: var(--accent); color: var(--primary); padding: 10px 28px; border-radius: 50px; font-weight: 600; display: inline-flex; align-items: center; gap: 6px; transition: var(--transition); }
.sidebar-cta .btn:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: var(--shadow-accent); }

/* ===== Error State ===== */
.article-error { padding: var(--space-xl) 0; text-align: center; }
.article-error .error-icon { font-size: 4rem; color: var(--accent); margin-bottom: var(--space-md); opacity: 0.6; }
.article-error h2 { font-size: 2rem; color: var(--primary); margin-bottom: var(--space-sm); }
.article-error p { color: var(--text-light); max-width: 500px; margin: 0 auto var(--space-lg); }
.article-error .btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 32px; background: var(--primary); color: var(--text-white); border-radius: 50px; font-weight: 600; transition: var(--transition); }
.article-error .btn:hover { background: var(--primary-light); color: var(--accent); transform: translateY(-2px); box-shadow: var(--shadow-lg); }

/* ===== CTA Section ===== */
.cta-section { background: linear-gradient(135deg, var(--primary) 0%, #0b1320 100%); padding: var(--space-xl) 0; text-align: center; position: relative; overflow: hidden; }
.cta-section::before { content: ''; position: absolute; inset: 0; background: radial-gradient(ellipse at 70% 30%, rgba(201, 168, 76, 0.08), transparent 70%); }
.cta-section .container { position: relative; z-index: 2; }
.cta-section h2 { font-size: 2.2rem; font-weight: 800; color: var(--text-white); margin-bottom: var(--space-sm); }
.cta-section p { color: rgba(240, 237, 232, 0.65); max-width: 600px; margin: 0 auto var(--space-lg); font-size: 1.05rem; }
.cta-section .btn-group { display: flex; flex-wrap: wrap; gap: var(--space-sm); justify-content: center; }
.cta-section .btn-primary { background: var(--accent); color: var(--primary); padding: 14px 36px; border-radius: 50px; font-weight: 700; font-size: 1rem; display: inline-flex; align-items: center; gap: 8px; transition: var(--transition); box-shadow: 0 4px 20px var(--accent-glow); }
.cta-section .btn-primary:hover { background: var(--accent-hover); transform: translateY(-3px); box-shadow: 0 8px 32px var(--accent-glow); color: var(--primary); }
.cta-section .btn-secondary { background: rgba(255,255,255,0.08); color: var(--text-white); padding: 14px 36px; border-radius: 50px; font-weight: 600; font-size: 1rem; border: 1px solid rgba(255,255,255,0.15); display: inline-flex; align-items: center; gap: 8px; transition: var(--transition); }
.cta-section .btn-secondary:hover { background: rgba(255,255,255,0.15); color: var(--accent); border-color: var(--accent); transform: translateY(-3px); }

/* ===== FAQ ===== */
.faq-section { padding: var(--space-xl) 0; background: var(--bg); }
.faq-section .section-title { text-align: center; margin-bottom: var(--space-lg); }
.faq-section .section-title h2 { font-size: 2rem; font-weight: 800; color: var(--primary); margin-bottom: var(--space-xs); }
.faq-section .section-title p { color: var(--text-light); max-width: 560px; margin: 0 auto; }
.faq-grid { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: var(--space-sm); }
.faq-item { background: var(--bg-card); border-radius: var(--radius); border: 1px solid var(--border-light); overflow: hidden; transition: var(--transition); }
.faq-item:hover { box-shadow: var(--shadow); }
.faq-item summary { padding: var(--space-md); font-weight: 600; font-size: 1.05rem; cursor: pointer; display: flex; align-items: center; gap: var(--space-sm); color: var(--text); transition: var(--transition); list-style: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary i { color: var(--accent); font-size: 0.85rem; transition: var(--transition); }
.faq-item[open] summary i { transform: rotate(45deg); }
.faq-item[open] summary { color: var(--accent); }
.faq-item .faq-answer { padding: 0 var(--space-md) var(--space-md); color: var(--text-light); line-height: 1.8; }

/* ===== Footer ===== */
.footer { background: var(--bg-dark); color: rgba(240, 237, 232, 0.7); padding: var(--space-xl) 0 var(--space-md); border-top: 1px solid rgba(201, 168, 76, 0.08); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: var(--space-lg); margin-bottom: var(--space-lg); }
.footer-brand .logo { margin-bottom: var(--space-sm); }
.footer-brand p { font-size: 0.9rem; line-height: 1.7; color: rgba(240, 237, 232, 0.55); max-width: 360px; }
.footer-social { display: flex; gap: var(--space-sm); margin-top: var(--space-md); }
.footer-social a { display: inline-flex; align-items: center; justify-content: center; width: 40px; height: 40px; border-radius: 50%; background: rgba(255,255,255,0.06); color: rgba(240, 237, 232, 0.5); font-size: 1.1rem; transition: var(--transition); }
.footer-social a:hover { background: var(--accent); color: var(--primary); transform: translateY(-2px); }
.footer h4 { color: var(--text-white); font-size: 1rem; font-weight: 700; margin-bottom: var(--space-md); letter-spacing: 0.5px; }
.footer ul li { margin-bottom: var(--space-sm); }
.footer ul li a { color: rgba(240, 237, 232, 0.5); font-size: 0.9rem; transition: var(--transition); display: inline-flex; align-items: center; gap: 4px; }
.footer ul li a:hover { color: var(--accent); padding-left: 4px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.06); padding-top: var(--space-md); text-align: center; font-size: 0.85rem; color: rgba(240, 237, 232, 0.35); }
.footer-bottom p { margin: 0; }
@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-md); }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 520px) {
  .footer-grid { grid-template-columns: 1fr; }
}

/* ===== Buttons & Shared ===== */
.btn { display: inline-flex; align-items: center; gap: 6px; padding: 10px 24px; border-radius: 50px; font-weight: 600; font-size: 0.95rem; transition: var(--transition); }
.btn-primary { background: var(--accent); color: var(--primary); }
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: var(--shadow-accent); color: var(--primary); }
.btn-outline { border: 1px solid var(--accent); color: var(--accent); background: transparent; }
.btn-outline:hover { background: var(--accent); color: var(--primary); transform: translateY(-2px); }

/* ===== Related Posts ===== */
.related-section { padding: var(--space-xl) 0; background: var(--bg-card); }
.related-section .section-title { text-align: center; margin-bottom: var(--space-lg); }
.related-section .section-title h2 { font-size: 2rem; font-weight: 800; color: var(--primary); }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-md); }
.related-card { background: var(--bg); border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border-light); transition: var(--transition); }
.related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.related-card img { width: 100%; height: 200px; object-fit: cover; border-radius: 0; }
.related-card .card-body { padding: var(--space-md); }
.related-card .card-body .cat { font-size: 0.75rem; color: var(--accent); font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; }
.related-card .card-body h3 { font-size: 1.05rem; font-weight: 700; margin: 6px 0; }
.related-card .card-body h3 a { color: var(--text); }
.related-card .card-body h3 a:hover { color: var(--accent); }
.related-card .card-body p { font-size: 0.88rem; color: var(--text-light); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-card .card-body .date { font-size: 0.78rem; color: var(--text-light); margin-top: var(--space-sm); display: block; }
@media (max-width: 768px) {
  .related-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 520px) {
  .related-grid { grid-template-columns: 1fr; }
}

/* ===== Article Layout Responsive ===== */
@media (max-width: 1024px) {
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-md); }
}
@media (max-width: 768px) {
  .article-sidebar { grid-template-columns: 1fr; }
  .article-body { padding: var(--space-md); }
  .article-body .content { font-size: 1rem; }
}

/* ===== Utility ===== */
.text-accent { color: var(--accent); }
.bg-accent { background: var(--accent); color: var(--primary); }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }