/* roulang page: index */
:root {
  --primary: #0f2b46;
  --primary-dark: #0a1f33;
  --primary-light: #1c3d5e;
  --accent: #2d7ff9;
  --accent-hover: #1a6ae0;
  --gold: #f0b429;
  --bg: #f5f7fa;
  --bg-white: #ffffff;
  --text: #1e293b;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 8px rgba(15,43,70,.06);
  --shadow-md: 0 8px 30px rgba(15,43,70,.10);
  --shadow-lg: 0 20px 50px rgba(15,43,70,.14);
  --transition: .3s ease;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition);
}
a:hover {
  color: var(--accent);
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
button, input, select, textarea {
  font-family: inherit;
}
.container {
  max-width: 1200px;
}
.section-pad {
  padding: 88px 0;
}
@media (max-width: 767px) {
  .section-pad {
    padding: 60px 0;
  }
}

/* ===== Header & Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1050;
  background: rgba(255,255,255,.86);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(226,232,240,.8);
  box-shadow: 0 1px 12px rgba(15,43,70,.04);
}
.navbar {
  padding-top: 12px;
  padding-bottom: 12px;
}
.navbar-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.35rem;
  color: var(--primary);
  letter-spacing: .5px;
}
.navbar-brand:hover {
  color: var(--primary);
}
.brand-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--accent), var(--primary));
  color: #fff;
  border-radius: 12px;
  font-size: 1.1rem;
  box-shadow: 0 4px 14px rgba(45,127,249,.32);
}
.brand-text {
  font-size: 1.28rem;
}
.navbar-nav .nav-link {
  font-weight: 500;
  font-size: .96rem;
  color: var(--text);
  padding: .55rem 1.05rem !important;
  border-radius: 50px;
  margin: 0 2px;
}
.navbar-nav .nav-link:hover,
.navbar-nav .nav-link:focus {
  color: var(--accent);
  background: rgba(45,127,249,.08);
}
.navbar-nav .nav-link.active {
  color: var(--accent);
  background: rgba(45,127,249,.10);
  font-weight: 600;
}
.btn-header {
  background: var(--primary);
  color: #fff !important;
  border: none;
  border-radius: 50px;
  padding: .5rem 1.4rem;
  font-weight: 600;
  font-size: .92rem;
  transition: all var(--transition);
  box-shadow: 0 4px 14px rgba(15,43,70,.18);
}
.btn-header:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(15,43,70,.24);
  color: #fff !important;
}
.navbar-toggler {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 6px 10px;
}
.navbar-toggler:focus {
  box-shadow: 0 0 0 3px rgba(45,127,249,.2);
}
.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%230f2b46' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}
@media (max-width: 991px) {
  .navbar-collapse {
    background: #fff;
    border-radius: var(--radius);
    margin-top: 12px;
    padding: 16px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border);
  }
  .navbar-nav .nav-link {
    padding: .65rem 1rem !important;
  }
  .btn-header {
    display: inline-block;
    margin-top: 8px;
    width: 100%;
    text-align: center;
  }
}

/* ===== Hero ===== */
.hero {
  position: relative;
  padding: 128px 0 112px;
  background: linear-gradient(130deg, rgba(10,31,51,.92) 0%, rgba(15,43,70,.78) 55%, rgba(45,127,249,.72) 100%), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color: #fff;
  overflow: hidden;
}
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 75% 20%, rgba(240,180,41,.18) 0%, transparent 55%);
  pointer-events: none;
}
.hero .container {
  position: relative;
  z-index: 2;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,.14);
  border: 1px solid rgba(255,255,255,.24);
  border-radius: 50px;
  padding: 6px 18px;
  font-size: .85rem;
  font-weight: 500;
  letter-spacing: .5px;
  color: #fff;
  backdrop-filter: blur(4px);
  margin-bottom: 22px;
}
.hero-badge i {
  color: var(--gold);
}
.hero h1 {
  font-size: clamp(2.1rem, 4.2vw, 3.4rem);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: 1px;
  margin-bottom: 20px;
}
.hero h1 span {
  color: var(--gold);
}
.hero-sub {
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  max-width: 620px;
  line-height: 1.85;
  color: rgba(255,255,255,.9);
  margin-bottom: 34px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.btn-hero {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-radius: 50px;
  padding: .7rem 1.7rem;
  font-weight: 600;
  font-size: .98rem;
  transition: all var(--transition);
  border: none;
}
.btn-hero-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 8px 28px rgba(45,127,249,.38);
}
.btn-hero-primary:hover {
  background: var(--accent-hover);
  color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(45,127,249,.46);
}
.btn-hero-ghost {
  background: rgba(255,255,255,.12);
  color: #fff;
  border: 1px solid rgba(255,255,255,.35);
  backdrop-filter: blur(4px);
}
.btn-hero-ghost:hover {
  background: rgba(255,255,255,.22);
  color: #fff;
  transform: translateY(-3px);
}
.hero-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 36px;
  margin-top: 52px;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,.18);
}
.hero-metric {
  display: flex;
  flex-direction: column;
}
.hero-metric strong {
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--gold);
  line-height: 1.2;
}
.hero-metric span {
  font-size: .86rem;
  color: rgba(255,255,255,.7);
  margin-top: 2px;
}
@media (max-width: 767px) {
  .hero {
    padding: 88px 0 72px;
  }
  .hero-metrics {
    gap: 22px;
    margin-top: 38px;
    padding-top: 24px;
  }
  .hero-metric strong {
    font-size: 1.3rem;
  }
}

/* ===== Section General ===== */
.section-head {
  max-width: 640px;
  margin-bottom: 48px;
}
.section-head.center {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(45,127,249,.1);
  color: var(--accent);
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: .5px;
  padding: 5px 14px;
  border-radius: 50px;
  margin-bottom: 14px;
}
.section-tag i {
  font-size: .75rem;
}
.section-head h2 {
  font-size: clamp(1.6rem, 2.6vw, 2.2rem);
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 12px;
  line-height: 1.3;
}
.section-head p {
  color: var(--text-muted);
  font-size: .98rem;
  margin-bottom: 0;
}

/* ===== Core Services ===== */
.section-core {
  background: var(--bg-white);
}
.core-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 34px 28px;
  height: 100%;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.core-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--gold));
  opacity: 0;
  transition: opacity var(--transition);
}
.core-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-6px);
  border-color: transparent;
}
.core-card:hover::before {
  opacity: 1;
}
.core-card-img {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  object-fit: cover;
  margin-bottom: 22px;
  box-shadow: var(--shadow-sm);
}
.core-card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(45,127,249,.14), rgba(240,180,41,.14));
  color: var(--accent);
  font-size: 1.6rem;
  margin-bottom: 22px;
}
.core-card h3 {
  font-size: 1.16rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 12px;
}
.core-card p {
  font-size: .92rem;
  color: var(--text-muted);
  margin-bottom: 0;
  line-height: 1.75;
}

/* ===== Category Entry ===== */
.section-category {
  background: var(--bg);
}
.category-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 4px);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  height: 100%;
}
.category-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-6px);
}
.category-card .cat-img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  transition: transform .5s ease;
}
.category-card:hover .cat-img {
  transform: scale(1.04);
}
.category-card-body {
  padding: 30px;
}
.category-card .tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}
.tag-item {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: rgba(45,127,249,.08);
  color: var(--accent);
  font-size: .78rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 50px;
}
.tag-item i {
  font-size: .7rem;
}
.category-card h3 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 12px;
}
.category-card p {
  color: var(--text-muted);
  font-size: .94rem;
  line-height: 1.75;
  margin-bottom: 20px;
}
.category-card .btn-circle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 50px;
  padding: .55rem 1.4rem;
  font-weight: 600;
  font-size: .9rem;
  transition: all var(--transition);
}
.category-card .btn-circle:hover {
  background: var(--accent);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(45,127,249,.3);
}

/* ===== Latest List ===== */
.section-latest {
  background: var(--bg-white);
}
.latest-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
@media (max-width: 767px) {
  .latest-grid {
    grid-template-columns: 1fr;
  }
}
.latest-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
  height: 100%;
}
.latest-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
  border-color: rgba(45,127,249,.3);
}
.latest-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}
.badge-cat {
  display: inline-block;
  background: rgba(45,127,249,.1);
  color: var(--accent);
  font-size: .78rem;
  font-weight: 600;
  padding: 3px 12px;
  border-radius: 50px;
}
.latest-card-time {
  font-size: .8rem;
  color: var(--text-muted);
}
.latest-card-title {
  font-size: 1.06rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
  line-height: 1.5;
}
.latest-card-title a {
  color: inherit;
}
.latest-card-title a:hover {
  color: var(--accent);
}
.latest-card-desc {
  font-size: .9rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.latest-card-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: .86rem;
  font-weight: 600;
  color: var(--accent);
  transition: gap var(--transition);
}
.latest-card-more i {
  font-size: .78rem;
}
.latest-card:hover .latest-card-more {
  gap: 10px;
}
.empty-tip {
  grid-column: 1 / -1;
  text-align: center;
  background: var(--bg);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: 48px 20px;
  color: var(--text-muted);
  font-size: .95rem;
}

/* ===== Process ===== */
.section-process {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
  position: relative;
  overflow: hidden;
}
.section-process::before {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(45,127,249,.3), transparent 70%);
  top: -120px;
  right: -80px;
}
.section-process .section-head h2,
.section-process .section-head p {
  color: #fff;
}
.section-process .section-head p {
  color: rgba(255,255,255,.75);
}
.section-process .section-tag {
  background: rgba(255,255,255,.14);
  color: #fff;
}
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
  z-index: 2;
}
@media (max-width: 991px) {
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 520px) {
  .process-grid {
    grid-template-columns: 1fr;
  }
}
.process-step {
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.16);
  border-radius: var(--radius);
  padding: 30px 24px;
  backdrop-filter: blur(6px);
  transition: all var(--transition);
  position: relative;
}
.process-step:hover {
  background: rgba(255,255,255,.14);
  transform: translateY(-5px);
}
.step-num {
  font-size: 2.4rem;
  font-weight: 900;
  color: rgba(255,255,255,.3);
  line-height: 1;
  margin-bottom: 16px;
  display: block;
}
.step-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  border-radius: 14px;
  background: rgba(240,180,41,.18);
  color: var(--gold);
  font-size: 1.2rem;
  margin-bottom: 18px;
}
.process-step h3 {
  color: #fff;
  font-size: 1.04rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.process-step p {
  color: rgba(255,255,255,.75);
  font-size: .87rem;
  margin-bottom: 0;
  line-height: 1.7;
}

/* ===== Stats ===== */
.section-stats {
  background: var(--bg-white);
}
.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
@media (max-width: 767px) {
  .stat-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
.stat-item {
  text-align: center;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 34px 20px;
  background: var(--bg-white);
  transition: all var(--transition);
}
.stat-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}
.stat-item .stat-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 54px;
  height: 54px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(45,127,249,.12), rgba(240,180,41,.12));
  color: var(--accent);
  font-size: 1.3rem;
  margin-bottom: 16px;
}
.stat-item .stat-num {
  font-size: 2rem;
  font-weight: 900;
  color: var(--primary);
  line-height: 1.2;
}
.stat-item .stat-label {
  font-size: .88rem;
  color: var(--text-muted);
  margin-top: 6px;
}

/* ===== FAQ ===== */
.section-faq {
  background: var(--bg);
}
.faq-accordion {
  max-width: 860px;
  margin: 0 auto;
}
.accordion-item {
  background: var(--bg-white);
  border: 1px solid var(--border) !important;
  border-radius: var(--radius-sm) !important;
  margin-bottom: 14px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.accordion-button {
  background: var(--bg-white);
  color: var(--primary);
  font-weight: 600;
  font-size: 1rem;
  padding: 1.1rem 1.4rem;
  border: none;
}
.accordion-button:not(.collapsed) {
  background: rgba(45,127,249,.04);
  color: var(--accent);
  box-shadow: none;
}
.accordion-button:focus {
  box-shadow: 0 0 0 3px rgba(45,127,249,.18);
  border: none;
}
.accordion-button::after {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%230f2b46'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
}
.accordion-button:not(.collapsed)::after {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%232d7ff9'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
}
.accordion-body {
  padding: 1rem 1.4rem 1.4rem;
  color: var(--text-muted);
  font-size: .94rem;
  line-height: 1.8;
  border-top: 1px solid var(--border);
}

/* ===== CTA ===== */
.section-cta {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%), url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  background-blend-mode: multiply;
  position: relative;
  overflow: hidden;
}
.section-cta::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 20% 30%, rgba(240,180,41,.18), transparent 60%);
  pointer-events: none;
}
.section-cta .container {
  position: relative;
  z-index: 2;
}
.cta-box {
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
  color: #fff;
}
.cta-box h2 {
  font-size: clamp(1.7rem, 3vw, 2.5rem);
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
}
.cta-box p {
  font-size: 1.02rem;
  color: rgba(255,255,255,.82);
  margin-bottom: 30px;
  line-height: 1.8;
}
.cta-box .btn-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--gold);
  color: var(--primary-dark);
  border: none;
  border-radius: 50px;
  padding: .85rem 2.2rem;
  font-weight: 700;
  font-size: 1rem;
  transition: all var(--transition);
  box-shadow: 0 10px 30px rgba(240,180,41,.35);
}
.cta-box .btn-cta:hover {
  background: #fff;
  color: var(--primary);
  transform: translateY(-3px);
  box-shadow: 0 14px 36px rgba(240,180,41,.45);
}

/* ===== Footer ===== */
.site-footer {
  background: var(--primary-dark);
  color: rgba(255,255,255,.75);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 44px;
}
@media (max-width: 767px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
}
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-weight: 800;
  font-size: 1.25rem;
  margin-bottom: 14px;
}
.footer-brand:hover {
  color: #fff;
}
.footer-brand .brand-icon {
  width: 36px;
  height: 36px;
  font-size: 1rem;
}
.footer-about p {
  font-size: .9rem;
  line-height: 1.8;
  color: rgba(255,255,255,.65);
  max-width: 340px;
  margin-bottom: 0;
}
.footer-links h4 {
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 16px;
}
.footer-links ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-links ul li {
  margin-bottom: 10px;
}
.footer-links ul a {
  color: rgba(255,255,255,.65);
  font-size: .9rem;
  transition: all var(--transition);
}
.footer-links ul a:hover {
  color: var(--gold);
  padding-left: 4px;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.12);
  padding: 20px 0;
  text-align: center;
  font-size: .85rem;
  color: rgba(255,255,255,.5);
}
.footer-bottom a {
  color: rgba(255,255,255,.7);
}
.footer-bottom a:hover {
  color: var(--gold);
}

/* ===== Focus / Accessibility ===== */
a:focus-visible,
button:focus-visible,
.btn:focus-visible {
  outline: 3px solid rgba(45,127,249,.5);
  outline-offset: 2px;
}

/* ===== Responsive Extra ===== */
@media (max-width: 1024px) {
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 520px) {
  .hero-actions {
    flex-direction: column;
  }
  .hero-actions .btn-hero {
    width: 100%;
    justify-content: center;
  }
  .section-head h2 {
    font-size: 1.5rem;
  }
  .core-card {
    padding: 24px 20px;
  }
  .latest-card {
    padding: 18px;
  }
}

/* roulang page: category1 */
:root {
      --primary: #2563eb;
      --primary-dark: #1e40af;
      --primary-light: #dbeafe;
      --accent: #f59e0b;
      --bg-body: #f8fafc;
      --bg-white: #ffffff;
      --bg-soft: #f0f4ff;
      --text-main: #1e293b;
      --text-muted: #64748b;
      --border: #e2e8f0;
      --radius: 16px;
      --radius-sm: 10px;
      --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
      --shadow-lg: 0 12px 40px rgba(37, 99, 235, 0.12);
      --spacing-section: 90px;
    }
    * {
      box-sizing: border-box;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
      line-height: 1.7;
      color: var(--text-main);
      background: var(--bg-body);
      -webkit-font-smoothing: antialiased;
      margin: 0;
      padding: 0;
    }
    a {
      text-decoration: none;
      color: var(--primary);
      transition: all .25s ease;
    }
    a:hover {
      color: var(--primary-dark);
    }
    img {
      max-width: 100%;
      height: auto;
    }
    ul {
      margin: 0;
      padding: 0;
    }
    .container {
      max-width: 1200px;
    }

    /* Header */
    .site-header {
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border);
      position: sticky;
      top: 0;
      z-index: 1000;
    }
    .site-header .navbar {
      padding: 12px 0;
    }
    .site-header .navbar-brand {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 800;
      font-size: 1.35rem;
      color: var(--text-main);
    }
    .brand-icon {
      width: 38px;
      height: 38px;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 17px;
      box-shadow: 0 4px 10px rgba(37, 99, 235, 0.3);
    }
    .brand-text {
      letter-spacing: 0.5px;
    }
    .site-header .nav-link {
      color: var(--text-muted);
      font-weight: 600;
      padding: 10px 16px !important;
      border-radius: 8px;
      margin: 0 2px;
      font-size: 0.95rem;
      transition: all .25s ease;
    }
    .site-header .nav-link:hover {
      color: var(--primary);
      background: var(--bg-soft);
    }
    .site-header .nav-link.active {
      color: var(--primary);
      background: var(--primary-light);
      font-weight: 700;
    }
    .btn-header {
      background: var(--primary);
      color: #fff;
      border: none;
      padding: 10px 22px;
      border-radius: 10px;
      font-weight: 600;
      transition: all .3s ease;
      box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
      display: inline-block;
    }
    .btn-header:hover {
      background: var(--primary-dark);
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
    }
    .navbar-toggler {
      border: none;
      outline: none;
    }
    .navbar-toggler:focus {
      box-shadow: none;
    }

    /* Banner */
    .category-banner {
      position: relative;
      background: linear-gradient(135deg, #1e293b 0%, #1e40af 50%, #2563eb 100%);
      background-image: url('/assets/images/backpic/back-1.png');
      background-size: cover;
      background-position: center;
      background-blend-mode: overlay;
      padding: 110px 0 90px;
      color: #fff;
      text-align: center;
    }
    .category-banner::before {
      content: "";
      position: absolute;
      inset: 0;
      background: rgba(15, 23, 42, 0.65);
    }
    .category-banner .container {
      position: relative;
      z-index: 2;
    }
    .category-banner h1 {
      font-size: 2.6rem;
      font-weight: 800;
      letter-spacing: 1px;
      margin-bottom: 16px;
    }
    .category-banner p {
      font-size: 1.1rem;
      opacity: 0.92;
      max-width: 700px;
      margin: 0 auto 30px;
    }
    .banner-badges {
      display: flex;
      gap: 10px;
      justify-content: center;
      flex-wrap: wrap;
    }
    .banner-badges .badge {
      padding: 8px 18px;
      border-radius: 30px;
      background: rgba(255, 255, 255, 0.15);
      border: 1px solid rgba(255, 255, 255, 0.3);
      font-size: 0.9rem;
      font-weight: 500;
      color: #fff;
    }
    .breadcrumb-bar {
      padding: 16px 0;
      background: #fff;
      border-bottom: 1px solid var(--border);
    }
    .breadcrumb {
      margin: 0;
      font-size: 0.9rem;
    }
    .breadcrumb a {
      color: var(--text-muted);
    }
    .breadcrumb a:hover {
      color: var(--primary);
    }
    .breadcrumb .active {
      color: var(--primary);
      font-weight: 600;
    }

    /* Section 通用 */
    .section-block {
      padding: var(--spacing-section) 0;
    }
    .section-block.alt {
      background: var(--bg-white);
    }
    .section-heading {
      text-align: center;
      margin-bottom: 48px;
    }
    .section-heading .section-tag {
      display: inline-block;
      padding: 6px 16px;
      border-radius: 30px;
      background: var(--primary-light);
      color: var(--primary);
      font-weight: 600;
      font-size: 0.85rem;
      letter-spacing: 1px;
      margin-bottom: 12px;
    }
    .section-heading h2 {
      font-size: 2rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .section-heading p {
      color: var(--text-muted);
      max-width: 600px;
      margin: 0 auto;
      font-size: 1.05rem;
    }

    /* 路线卡片 */
    .route-card {
      background: #fff;
      border-radius: var(--radius);
      border: 1px solid var(--border);
      padding: 32px 28px;
      height: 100%;
      box-shadow: var(--shadow);
      transition: all .3s ease;
      position: relative;
      overflow: hidden;
    }
    .route-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: linear-gradient(90deg, var(--primary), var(--accent));
      opacity: 0;
      transition: opacity .3s;
    }
    .route-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-lg);
      border-color: rgba(37, 99, 235, 0.2);
    }
    .route-card:hover::before {
      opacity: 1;
    }
    .route-card .route-icon {
      width: 56px;
      height: 56px;
      border-radius: 14px;
      background: var(--bg-soft);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      color: var(--primary);
      margin-bottom: 20px;
    }
    .route-card h3 {
      font-size: 1.2rem;
      font-weight: 700;
      margin-bottom: 10px;
    }
    .route-card p {
      color: var(--text-muted);
      font-size: 0.95rem;
      margin-bottom: 16px;
    }
    .route-card .route-link {
      font-weight: 600;
      font-size: 0.9rem;
    }

    /* 步骤 */
    .steps-section {
      background: linear-gradient(180deg, var(--bg-body), var(--bg-soft));
    }
    .step-item {
      display: flex;
      gap: 24px;
      background: #fff;
      border-radius: var(--radius);
      padding: 28px;
      margin-bottom: 20px;
      border: 1px solid var(--border);
      box-shadow: var(--shadow);
      transition: all .3s ease;
    }
    .step-item:hover {
      box-shadow: var(--shadow-lg);
      transform: translateX(6px);
    }
    .step-num {
      width: 44px;
      height: 44px;
      min-width: 44px;
      border-radius: 12px;
      background: var(--primary);
      color: #fff;
      font-weight: 800;
      font-size: 1.15rem;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
    }
    .step-item:nth-child(2) .step-num {
      background: var(--accent);
      box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
    }
    .step-item:nth-child(3) .step-num {
      background: #10b981;
      box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
    }
    .step-item:nth-child(4) .step-num {
      background: #8b5cf6;
      box-shadow: 0 4px 12px rgba(139, 92, 246, 0.3);
    }
    .step-body h3 {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .step-body p {
      color: var(--text-muted);
      margin: 0;
      font-size: 0.95rem;
    }
    .step-body .step-tips {
      margin-top: 10px;
      padding: 10px 14px;
      background: var(--bg-soft);
      border-radius: 8px;
      font-size: 0.88rem;
      color: var(--text-main);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

    /* 内容卡片 */
    .content-card {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      overflow: hidden;
      height: 100%;
      box-shadow: var(--shadow);
      transition: all .35s ease;
    }
    .content-card:hover {
      transform: translateY(-8px);
      box-shadow: var(--shadow-lg);
    }
    .content-card .card-img-wrap {
      position: relative;
      overflow: hidden;
      height: 210px;
    }
    .content-card .card-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .5s ease;
    }
    .content-card:hover .card-img-wrap img {
      transform: scale(1.06);
    }
    .content-card .card-body-custom {
      padding: 24px;
    }
    .content-card .card-tag {
      display: inline-block;
      padding: 4px 12px;
      background: var(--primary-light);
      color: var(--primary);
      border-radius: 20px;
      font-size: 0.78rem;
      font-weight: 600;
      margin-bottom: 12px;
    }
    .content-card h3 {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 10px;
      line-height: 1.45;
    }
    .content-card h3 a {
      color: var(--text-main);
    }
    .content-card h3 a:hover {
      color: var(--primary);
    }
    .content-card p {
      color: var(--text-muted);
      font-size: 0.9rem;
      margin-bottom: 14px;
    }
    .content-card .card-meta {
      color: var(--text-muted);
      font-size: 0.82rem;
      display: flex;
      gap: 16px;
      border-top: 1px solid var(--border);
      padding-top: 14px;
    }

    /* 统计 */
    .stats-section {
      background: linear-gradient(135deg, #0f172a, #1e3a8a);
      background-image: url('/assets/images/backpic/back-2.png');
      background-size: cover;
      background-position: center;
      background-blend-mode: overlay;
      color: #fff;
      padding: 70px 0;
    }
    .stats-section .section-heading h2,
    .stats-section .section-heading p {
      color: #fff;
    }
    .stats-section .section-heading p {
      opacity: 0.85;
    }
    .stats-section .section-tag {
      background: rgba(255, 255, 255, 0.15);
      color: #fff;
    }
    .stat-item {
      text-align: center;
      padding: 24px;
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius);
      backdrop-filter: blur(6px);
    }
    .stat-item .stat-num {
      font-size: 2.4rem;
      font-weight: 800;
      color: #ffd166;
      line-height: 1.3;
    }
    .stat-item .stat-label {
      font-size: 0.95rem;
      opacity: 0.9;
      margin-top: 6px;
    }

    /* FAQ */
    .faq-item {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      margin-bottom: 14px;
      overflow: hidden;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
    }
    .faq-item summary {
      padding: 20px 24px;
      font-weight: 600;
      font-size: 1.02rem;
      cursor: pointer;
      list-style: none;
      display: flex;
      justify-content: space-between;
      align-items: center;
      transition: background .25s;
    }
    .faq-item summary:hover {
      background: var(--bg-soft);
    }
    .faq-item summary::after {
      content: "\f078";
      font-family: "Font Awesome 6 Free";
      font-weight: 900;
      color: var(--primary);
      transition: transform .3s ease;
    }
    .faq-item details[open] summary::after {
      transform: rotate(180deg);
    }
    .faq-item .faq-answer {
      padding: 14px 24px 20px;
      color: var(--text-muted);
      font-size: 0.95rem;
      border-top: 1px dashed var(--border);
      margin: 0 24px;
      padding: 14px 0 20px;
    }

    /* CTA */
    .cta-section {
      padding: 80px 0;
      background: linear-gradient(135deg, var(--primary), #3b82f6);
      background-image: url('/assets/images/backpic/back-3.png');
      background-size: cover;
      background-position: center;
      background-blend-mode: overlay;
      position: relative;
    }
    .cta-section::before {
      content: "";
      position: absolute;
      inset: 0;
      background: rgba(29, 78, 216, 0.82);
    }
    .cta-section .container {
      position: relative;
      z-index: 2;
      text-align: center;
      color: #fff;
    }
    .cta-section h2 {
      font-size: 2rem;
      font-weight: 800;
      margin-bottom: 12px;
    }
    .cta-section p {
      font-size: 1.05rem;
      opacity: 0.9;
      max-width: 600px;
      margin: 0 auto 30px;
    }
    .btn-cta {
      background: #fff;
      color: var(--primary);
      border: none;
      padding: 14px 40px;
      border-radius: 50px;
      font-weight: 700;
      font-size: 1.05rem;
      box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
      transition: all .3s ease;
      display: inline-flex;
      align-items: center;
      gap: 10px;
      text-decoration: none;
    }
    .btn-cta:hover {
      transform: translateY(-3px);
      box-shadow: 0 12px 36px rgba(0, 0, 0, 0.25);
      color: var(--primary-dark);
    }

    /* Footer */
    .site-footer {
      background: #0f172a;
      color: #94a3b8;
      padding: 70px 0 30px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr;
      gap: 48px;
      margin-bottom: 40px;
    }
    .footer-brand {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.25rem;
      font-weight: 800;
      color: #fff;
      margin-bottom: 16px;
      text-decoration: none;
    }
    .footer-brand:hover {
      color: #fff;
    }
    .footer-about p {
      font-size: 0.92rem;
      line-height: 1.7;
      max-width: 360px;
    }
    .site-footer h4 {
      color: #fff;
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 18px;
    }
    .site-footer ul li {
      list-style: none;
      margin-bottom: 10px;
    }
    .site-footer ul li a {
      color: #94a3b8;
      font-size: 0.92rem;
      transition: all .25s;
    }
    .site-footer ul li a:hover {
      color: #ffd166;
      padding-left: 4px;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 24px;
      text-align: center;
      font-size: 0.88rem;
      color: #64748b;
    }
    .footer-bottom a {
      color: #94a3b8;
    }
    .footer-bottom a:hover {
      color: #ffd166;
    }

    /* 响应式 */
    @media (max-width: 992px) {
      .site-header .navbar-collapse {
        background: #fff;
        padding: 16px;
        border-radius: 12px;
        box-shadow: var(--shadow-lg);
        margin-top: 12px;
        border: 1px solid var(--border);
      }
      .site-header .nav-link {
        padding: 10px 14px !important;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }
    @media (max-width: 768px) {
      :root {
        --spacing-section: 60px;
      }
      .category-banner {
        padding: 80px 0 60px;
      }
      .category-banner h1 {
        font-size: 1.9rem;
      }
      .section-heading h2 {
        font-size: 1.6rem;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
      }
      .step-item {
        flex-direction: column;
        gap: 14px;
      }
      .stat-item .stat-num {
        font-size: 1.8rem;
      }
    }
    @media (max-width: 520px) {
      .category-banner p {
        font-size: 1rem;
      }
      .content-card .card-img-wrap {
        height: 180px;
      }
      .btn-cta {
        padding: 12px 28px;
        font-size: 1rem;
      }
    }

/* roulang page: article */
:root {
            --primary: #0d3b66;
            --primary-dark: #092a4a;
            --primary-light: #e8f1f8;
            --accent: #f4a340;
            --accent-dark: #d98a1f;
            --bg: #f5f7fa;
            --surface: #ffffff;
            --text: #1f2a37;
            --text-muted: #6b7280;
            --border: #e5e7eb;
            --radius: 14px;
            --radius-sm: 8px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, .08);
            --shadow: 0 8px 24px rgba(0, 0, 0, .08);
            --shadow-lg: 0 16px 40px rgba(0, 0, 0, .12);
            --transition: .25s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        button:focus,
        a:focus,
        input:focus {
            outline: 3px solid rgba(244, 163, 64, .4);
            outline-offset: 2px;
        }

        .container {
            max-width: 1200px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            background: rgba(255, 255, 255, .94);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1030;
            box-shadow: var(--shadow-sm);
        }

        .navbar {
            padding: .75rem 0;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: .65rem;
            font-weight: 800;
            font-size: 1.35rem;
            color: var(--primary);
            letter-spacing: .5px;
        }

        .navbar-brand:hover {
            color: var(--primary);
        }

        .brand-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary) 0%, #155e8a 100%);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.15rem;
            box-shadow: var(--shadow-sm);
            flex-shrink: 0;
        }

        .navbar .nav-link {
            font-weight: 600;
            color: var(--text);
            padding: .55rem 1.1rem !important;
            border-radius: 8px;
            margin-left: .25rem;
            font-size: .98rem;
            line-height: 1.4;
        }

        .navbar .nav-link:hover {
            color: var(--primary);
            background: var(--primary-light);
        }

        .navbar .nav-link.active {
            color: var(--primary);
            background: var(--primary-light);
        }

        .btn-header {
            background: var(--accent);
            border: none;
            color: #fff !important;
            font-weight: 700;
            padding: .58rem 1.5rem;
            border-radius: 10px;
            font-size: .95rem;
            box-shadow: 0 4px 14px rgba(244, 163, 64, .35);
            transition: all var(--transition);
            white-space: nowrap;
        }

        .btn-header:hover {
            background: var(--accent-dark);
            color: #fff !important;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(244, 163, 64, .4);
        }

        .btn-header:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(244, 163, 64, .3);
        }

        .navbar-toggler {
            border: 1px solid var(--border);
            border-radius: 10px;
            padding: .35rem .6rem;
        }

        .navbar-toggler:focus {
            box-shadow: none;
            border-color: var(--accent);
        }

        /* ===== Page Banner ===== */
        .page-banner {
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            position: relative;
            padding: 4.5rem 0 4rem;
            color: #fff;
        }

        .page-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(9, 42, 74, .92) 0%, rgba(13, 59, 102, .78) 100%);
        }

        .banner-content {
            position: relative;
            z-index: 1;
            max-width: 860px;
        }

        .breadcrumb-wrap {
            display: flex;
            align-items: center;
            gap: .5rem;
            font-size: .88rem;
            opacity: .92;
            margin-bottom: 1.25rem;
            flex-wrap: wrap;
        }

        .breadcrumb-wrap a:hover {
            color: var(--accent);
        }

        .breadcrumb-wrap .sep {
            opacity: .6;
        }

        .breadcrumb-wrap .current {
            color: var(--accent);
        }

        .page-banner h1 {
            font-size: 2.2rem;
            font-weight: 800;
            line-height: 1.35;
            margin-bottom: 1.2rem;
            letter-spacing: .5px;
        }

        .article-meta {
            display: flex;
            gap: 1rem;
            align-items: center;
            flex-wrap: wrap;
        }

        .badge-cat {
            background: rgba(255, 255, 255, .18);
            border: 1px solid rgba(255, 255, 255, .35);
            padding: .3rem .85rem;
            border-radius: 20px;
            font-size: .85rem;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: .4rem;
        }

        .meta-time {
            font-size: .9rem;
            opacity: .9;
            display: inline-flex;
            align-items: center;
            gap: .4rem;
        }

        /* ===== Article Section ===== */
        .article-section {
            padding: 3.5rem 0 4rem;
        }

        .article-card {
            background: var(--surface);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 2.2rem;
            border: 1px solid var(--border);
        }

        .article-content {
            font-size: 1.05rem;
            line-height: 1.9;
            color: #334155;
        }

        .article-content h2 {
            font-size: 1.5rem;
            margin: 2.2rem 0 1rem;
            color: var(--primary);
            font-weight: 700;
            padding-bottom: .5rem;
            border-bottom: 2px solid var(--primary-light);
        }

        .article-content h3 {
            font-size: 1.25rem;
            margin: 1.6rem 0 .75rem;
            color: var(--primary);
            font-weight: 700;
        }

        .article-content h4 {
            font-size: 1.1rem;
            margin: 1.4rem 0 .6rem;
            font-weight: 600;
            color: var(--text);
        }

        .article-content p {
            margin-bottom: 1.3rem;
        }

        .article-content ul,
        .article-content ol {
            margin-bottom: 1.3rem;
            padding-left: 1.4rem;
        }

        .article-content li {
            margin-bottom: .5rem;
        }

        .article-content blockquote {
            border-left: 4px solid var(--accent);
            background: var(--primary-light);
            padding: 1.1rem 1.3rem;
            border-radius: 0 10px 10px 0;
            margin: 1.6rem 0;
            color: var(--text);
            font-style: normal;
        }

        .article-content img {
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            margin: 1.6rem auto;
            max-width: 100%;
        }

        .article-content a {
            color: var(--primary);
            font-weight: 600;
            border-bottom: 1px solid transparent;
        }

        .article-content a:hover {
            border-bottom-color: var(--accent);
            color: var(--accent-dark);
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            font-size: .95rem;
        }

        .article-content table th,
        .article-content table td {
            padding: .75rem 1rem;
            border: 1px solid var(--border);
        }

        .article-content table th {
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 700;
        }

        .article-content pre,
        .article-content code {
            background: #0f1f2d;
            color: #e2e8f0;
            border-radius: 6px;
            padding: .2rem .5rem;
            font-size: .9rem;
        }

        .article-content pre {
            padding: 1.2rem;
            overflow-x: auto;
            margin-bottom: 1.3rem;
        }

        /* ===== Empty State ===== */
        .empty-state {
            text-align: center;
            padding: 3.5rem 1.5rem;
        }

        .empty-state i {
            font-size: 3.5rem;
            color: var(--border);
            margin-bottom: 1.2rem;
        }

        .empty-state h2 {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: .5rem;
        }

        .empty-state p {
            color: var(--text-muted);
            margin-bottom: 1.5rem;
        }

        /* ===== Sidebar ===== */
        .sidebar {
            position: sticky;
            top: 100px;
        }

        .side-card {
            background: var(--surface);
            border-radius: var(--radius);
            padding: 1.5rem;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            margin-bottom: 1.35rem;
        }

        .side-card h3 {
            font-size: 1.08rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 1rem;
            padding-bottom: .6rem;
            border-bottom: 2px solid var(--primary-light);
            display: flex;
            align-items: center;
            gap: .5rem;
        }

        .side-card h3 i {
            color: var(--accent);
            font-size: .95rem;
        }

        .side-img {
            border-radius: 10px;
            margin-bottom: 1rem;
            width: 100%;
            object-fit: cover;
        }

        .side-card p {
            color: var(--text-muted);
            font-size: .95rem;
            margin-bottom: 1rem;
        }

        .side-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .side-list li {
            display: flex;
            align-items: flex-start;
            gap: .6rem;
            padding: .5rem 0;
            font-size: .95rem;
            color: var(--text);
            border-bottom: 1px dashed var(--border);
        }

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

        .side-list i {
            color: var(--accent);
            margin-top: .2rem;
            flex-shrink: 0;
        }

        .btn-outline-primary {
            border: 2px solid var(--primary);
            color: var(--primary);
            border-radius: 10px;
            font-weight: 600;
            padding: .5rem 1.2rem;
            transition: all var(--transition);
        }

        .btn-outline-primary:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }

        .btn-primary {
            background: var(--primary);
            border: none;
            border-radius: 10px;
            font-weight: 600;
            padding: .6rem 1.5rem;
            transition: all var(--transition);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow);
            color: #fff;
        }

        /* ===== Related Section ===== */
        .related-section {
            padding: 4rem 0;
            background: var(--surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .section-head {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 2.6rem;
        }

        .section-head .section-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: .82rem;
            font-weight: 700;
            padding: .3rem 1rem;
            border-radius: 20px;
            margin-bottom: .75rem;
            letter-spacing: .5px;
        }

        .section-head h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: .5rem;
        }

        .section-head p {
            color: var(--text-muted);
            font-size: 1rem;
        }

        .info-card {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 1.5rem;
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: all var(--transition);
        }

        .info-card:hover {
            box-shadow: var(--shadow);
            transform: translateY(-4px);
            border-color: #d7e3ee;
        }

        .info-card img {
            border-radius: 10px;
            margin-bottom: 1.1rem;
            width: 100%;
            height: 150px;
            object-fit: cover;
        }

        .info-card h3 {
            font-size: 1.08rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: .5rem;
        }

        .info-card p {
            color: var(--text-muted);
            font-size: .93rem;
            margin-bottom: 1rem;
            flex-grow: 1;
        }

        .info-card .btn {
            align-self: flex-start;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 4rem 0;
        }

        .accordion {
            max-width: 860px;
            margin: 0 auto;
        }

        .accordion-item {
            border: none;
            margin-bottom: 1rem;
            border-radius: var(--radius) !important;
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            background: var(--surface);
        }

        .accordion-button {
            font-weight: 700;
            color: var(--text);
            padding: 1.15rem 1.4rem;
            font-size: 1rem;
            background: var(--surface);
        }

        .accordion-button:not(.collapsed) {
            background: var(--primary-light);
            color: var(--primary);
            box-shadow: none;
        }

        .accordion-button:focus {
            box-shadow: none;
            border-color: var(--accent);
        }

        .accordion-body {
            color: var(--text-muted);
            font-size: .96rem;
            line-height: 1.8;
            padding: 1.25rem 1.4rem 1.4rem;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 4rem 0 5rem;
        }

        .cta-box {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 55%, #155e8a 100%);
            border-radius: 22px;
            padding: 3rem 2.5rem;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .cta-box::before {
            content: "";
            position: absolute;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .06);
            top: -80px;
            right: -60px;
        }

        .cta-box::after {
            content: "";
            position: absolute;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .04);
            bottom: -70px;
            left: -40px;
        }

        .cta-box .cta-inner {
            position: relative;
            z-index: 1;
        }

        .cta-box h2 {
            font-size: 1.9rem;
            font-weight: 800;
            margin-bottom: .75rem;
        }

        .cta-box p {
            opacity: .88;
            margin-bottom: 1.6rem;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-cta {
            background: #fff;
            color: var(--primary);
            border: none;
            border-radius: 12px;
            font-weight: 700;
            padding: .8rem 2rem;
            font-size: 1rem;
            box-shadow: 0 8px 24px rgba(0, 0, 0, .18);
            transition: all var(--transition);
        }

        .btn-cta:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-3px);
            box-shadow: 0 12px 30px rgba(244, 163, 64, .35);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #0b1f33;
            color: #a7b8c8;
            padding: 4rem 0 0;
            border-top: 4px solid var(--accent);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr;
            gap: 2.5rem;
            padding-bottom: 2.5rem;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: .6rem;
            color: #fff;
            font-weight: 800;
            font-size: 1.25rem;
            margin-bottom: .9rem;
        }

        .footer-brand:hover {
            color: #fff;
        }

        .footer-brand .brand-icon {
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: #fff;
        }

        .footer-about p {
            font-size: .92rem;
            line-height: 1.75;
            color: #8fa4b8;
            max-width: 360px;
        }

        .footer-links h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 1.1rem;
            position: relative;
            padding-bottom: .6rem;
        }

        .footer-links h4::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 32px;
            height: 3px;
            border-radius: 3px;
            background: var(--accent);
        }

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

        .footer-links li {
            margin-bottom: .5rem;
        }

        .footer-links a {
            color: #8fa4b8;
            font-size: .92rem;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: .35rem;
        }

        .footer-links a::before {
            content: "›";
            color: var(--accent);
            font-weight: 700;
        }

        .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding: 1.3rem 0;
            text-align: center;
            font-size: .88rem;
            color: #6f8499;
        }

        .footer-bottom a {
            color: var(--accent);
            font-weight: 600;
        }

        .footer-bottom a:hover {
            color: var(--accent-dark);
        }

        /* ===== Responsive ===== */
        @media (max-width: 991.98px) {
            .navbar-collapse {
                padding: 1rem 0;
            }

            .navbar .nav-link {
                margin: .25rem 0;
            }

            .btn-header {
                margin-top: .6rem;
                display: inline-block;
            }

            .page-banner {
                padding: 3.5rem 0 3rem;
            }

            .page-banner h1 {
                font-size: 1.8rem;
            }

            .article-card {
                padding: 1.6rem;
            }

            .sidebar {
                position: static;
                margin-top: 1.5rem;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 2rem;
            }

            .footer-about {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 767.98px) {
            .article-section {
                padding: 2.5rem 0 3rem;
            }

            .related-section,
            .faq-section,
            .cta-section {
                padding: 3rem 0;
            }

            .section-head h2 {
                font-size: 1.6rem;
            }

            .cta-box {
                padding: 2.2rem 1.5rem;
                border-radius: 18px;
            }

            .cta-box h2 {
                font-size: 1.5rem;
            }

            .article-content {
                font-size: 1rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
        }

        @media (max-width: 575.98px) {
            .page-banner h1 {
                font-size: 1.45rem;
            }

            .article-card {
                padding: 1.25rem;
            }

            .article-meta {
                gap: .6rem;
            }

            .badge-cat,
            .meta-time {
                font-size: .82rem;
            }

            .cta-box h2 {
                font-size: 1.3rem;
            }

            .btn-cta {
                padding: .7rem 1.6rem;
                font-size: .95rem;
            }

            .footer-bottom {
                font-size: .82rem;
                padding: 1rem;
            }
        }