/* roulang page: index */
:root {
  --primary: #2EE6A8;
  --primary-light: #35F0C0;
  --primary-dark: #1ccb8f;
  --accent: #FFB347;
  --bg-base: #0D1424;
  --bg-deep: #070B14;
  --glass-white: rgba(255,255,255,0.04);
  --glass-stroke: rgba(255,255,255,0.1);
  --glass-highlight: rgba(255,255,255,0.14);
  --text-main: #F2F6FC;
  --text-secondary: rgba(242,246,252,0.65);
  --text-weak: rgba(242,246,252,0.4);
  --radius-lg: 20px;
  --radius-md: 16px;
  --radius-pill: 999px;
  --shadow-black: 0 8px 32px rgba(0,0,0,0.45);
  --shadow-glow: 0 0 24px rgba(46,230,168,0.08);
  --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-main);
  background: var(--bg-base);
  color: var(--text-main);
  line-height: 1.7;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: color .3s ease; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* glass card */
.glass-card {
  background: var(--glass-white);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-stroke);
  border-top-color: var(--glass-highlight);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-black);
  transition: box-shadow .3s ease, transform .3s ease, border-color .3s ease;
}
.glass-card:hover {
  box-shadow: var(--shadow-black), var(--shadow-glow);
  transform: translateY(-4px);
  border-color: rgba(46,230,168,0.25);
}

/* buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 32px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #06121E;
  font-weight: 700;
  font-size: 15px;
  border: none;
  border-radius: var(--radius-pill);
  box-shadow: 0 0 24px rgba(46,230,168,0.35), 0 0 64px rgba(46,230,168,0.2), 0 0 120px rgba(46,230,168,0.08);
  transition: all .3s ease;
  letter-spacing: .02em;
}
.btn-primary:hover {
  filter: brightness(1.1);
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(46,230,168,0.5), 0 0 80px rgba(46,230,168,0.25), 0 0 140px rgba(46,230,168,0.12);
  color: #06121E;
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 0 16px rgba(46,230,168,0.3);
}
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 32px;
  background: rgba(255,255,255,0.04);
  color: var(--text-main);
  font-weight: 600;
  font-size: 15px;
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: var(--radius-pill);
  backdrop-filter: blur(8px);
  transition: all .3s ease;
}
.btn-ghost:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}
.btn-ghost:active {
  transform: translateY(0);
}

/* badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 5px 14px;
  font-size: 12px;
  border-radius: var(--radius-pill);
  background: rgba(255,255,255,0.06);
  color: var(--text-secondary);
  border: 1px solid rgba(255,255,255,0.08);
  line-height: 1.4;
}
.badge-primary {
  background: rgba(46,230,168,0.1);
  color: var(--primary);
  border-color: rgba(46,230,168,0.2);
}
.badge-hot {
  background: rgba(255,179,71,0.12);
  color: var(--accent);
  border-color: rgba(255,179,71,0.2);
}

/* ===== NAV ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(7,11,20,0.6);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: background .3s ease;
}
.site-header.scrolled {
  background: rgba(7,11,20,0.85);
}
.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
}
.nav-left, .nav-right {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
}
.nav-right {
  justify-content: flex-end;
}
.nav-center {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
}
.site-logo {
  font-size: 20px;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: .05em;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 8px;
}
.site-logo i {
  color: var(--primary);
  font-size: 18px;
}
.site-logo:hover {
  color: var(--primary);
}
.nav-list {
  display: flex;
  align-items: center;
  gap: 2px;
}
.nav-list a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  font-size: 14px;
  color: rgba(242,246,252,0.8);
  border-radius: var(--radius-pill);
  transition: all .3s ease;
  white-space: nowrap;
  font-weight: 500;
}
.nav-list a i {
  font-size: 13px;
  color: var(--text-weak);
  transition: color .3s ease;
}
.nav-list a:hover {
  color: var(--primary);
  background: rgba(46,230,168,0.06);
}
.nav-list a:hover i {
  color: var(--primary);
}
.nav-list a.active {
  color: var(--primary);
  background: rgba(46,230,168,0.08);
  position: relative;
}
.nav-list a.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 8px var(--primary);
}
.nav-cta {
  margin-left: 12px;
}
.nav-cta .btn-primary {
  min-height: 36px;
  padding: 0 20px;
  font-size: 13px;
  box-shadow: 0 0 16px rgba(46,230,168,0.3), 0 0 40px rgba(46,230,168,0.12);
}
.nav-burger {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.04);
  border-radius: 12px;
  align-items: center;
  justify-content: center;
  color: var(--text-main);
  font-size: 18px;
  transition: all .3s ease;
  z-index: 110;
}
.nav-burger:hover {
  border-color: var(--primary);
  color: var(--primary);
}
.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(7,11,20,0.96);
  backdrop-filter: blur(24px);
  z-index: 105;
  padding: 100px 32px 40px;
  overflow-y: auto;
  opacity: 0;
  transition: opacity .3s ease;
}
.mobile-menu.open {
  display: block;
  opacity: 1;
}
.mobile-menu nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.mobile-menu nav a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 8px;
  font-size: 18px;
  font-weight: 600;
  color: var(--text-main);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: all .3s ease;
}
.mobile-menu nav a:hover {
  color: var(--primary);
  padding-left: 16px;
}
.mobile-menu nav a.active {
  color: var(--primary);
}
.mobile-menu .btn-primary {
  margin-top: 24px;
  width: 100%;
}

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(7,11,20,0.96) 0%, rgba(7,11,20,0.8) 40%, rgba(13,20,36,0.5) 80%);
}
.hero::after {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(46,230,168,0.1) 0%, transparent 60%);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  margin: 0 auto;
  padding: 120px 24px;
  width: 100%;
}
.hero-grid {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 60px;
}
.hero-content {
  flex: 1.2;
}
.hero-content .badge {
  margin-bottom: 24px;
}
.hero-title {
  font-size: 44px;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 20px;
  letter-spacing: .01em;
}
.hero-title .highlight {
  color: var(--primary);
  text-shadow: 0 0 16px rgba(46,230,168,0.4);
}
.hero-subtitle {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 520px;
  margin-bottom: 28px;
}
.hero-ctas {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 40px;
}
.hero-stat-item {
  display: flex;
  flex-direction: column;
}
.hero-stat-num {
  font-size: 28px;
  font-weight: 800;
  color: var(--primary);
  font-variant-numeric: tabular-nums;
  text-shadow: 0 0 20px rgba(46,230,168,0.3);
}
.hero-stat-label {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 4px;
}
.hero-side {
  flex: 0.8;
  max-width: 360px;
}
.hero-card {
  background: rgba(255,255,255,0.05);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid rgba(255,255,255,0.12);
  border-top-color: rgba(255,255,255,0.18);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-black);
}
.hero-card-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.hero-card-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.hero-card-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.hero-card-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}
.hero-card-item i {
  color: var(--primary);
  font-size: 14px;
  margin-top: 4px;
}
.hero-card-item span {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}
.hero-card-item strong {
  color: var(--text-main);
  font-weight: 600;
  display: block;
  font-size: 14px;
}

/* ===== SECTION ===== */
.section {
  padding: 96px 0;
}
.section-deep {
  background: var(--bg-deep);
  position: relative;
}
.section-head {
  margin-bottom: 56px;
  max-width: 640px;
}
.section-head.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}
.section-tag {
  font-size: 13px;
  color: var(--primary);
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}
.section-tag::before {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--primary);
}
.section-head.center .section-tag {
  justify-content: center;
}
.section-title {
  font-size: 32px;
  font-weight: 800;
  line-height: 1.35;
  margin-bottom: 12px;
}
.section-desc {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ===== FEATURES ===== */
.features-layout {
  display: flex;
  gap: 60px;
  align-items: flex-start;
}
.features-intro {
  flex: 0 0 38%;
  position: sticky;
  top: 100px;
}
.features-grid {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.feature-card {
  padding: 24px;
  border-radius: var(--radius-md);
  position: relative;
  overflow: hidden;
}
.feature-card:nth-child(even) {
  transform: translateY(32px);
}
.feature-card img {
  width: 100%;
  height: 140px;
  object-fit: cover;
  border-radius: 12px;
  margin-bottom: 18px;
  border: 1px solid rgba(255,255,255,0.08);
}
.feature-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(46,230,168,0.12);
  border-radius: 12px;
  color: var(--primary);
  font-size: 18px;
  margin-bottom: 14px;
  border: 1px solid rgba(46,230,168,0.2);
}
.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}
.feature-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 14px;
}
.feature-link {
  font-size: 13px;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  transition: gap .3s ease;
}
.feature-link:hover {
  gap: 12px;
}
.feature-divider {
  height: 1px;
  background: linear-gradient(90deg, rgba(46,230,168,0.3), transparent);
  margin: 16px 0 12px;
}

/* ===== SCENARIOS ===== */
.scenario-block {
  display: flex;
  gap: 60px;
  align-items: center;
  margin-bottom: 80px;
}
.scenario-block.reverse {
  flex-direction: row-reverse;
}
.scenario-image {
  flex: 1;
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  border: 1px solid rgba(255,255,255,0.08);
}
.scenario-image img {
  width: 100%;
  height: 360px;
  object-fit: cover;
  transition: transform .6s ease;
}
.scenario-image:hover img {
  transform: scale(1.03);
}
.scenario-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(7,11,20,0.4));
}
.scenario-content {
  flex: 1;
}
.scenario-list {
  display: flex;
  flex-direction: column;
}
.scenario-item {
  display: flex;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: background .3s ease;
}
.scenario-item:hover {
  background: rgba(46,230,168,0.02);
}
.scenario-item:hover .scenario-num {
  color: var(--primary);
  text-shadow: 0 0 16px rgba(46,230,168,0.4);
}
.scenario-num {
  font-size: 24px;
  font-weight: 800;
  color: var(--text-weak);
  font-variant-numeric: tabular-nums;
  line-height: 1;
  min-width: 36px;
  transition: all .3s ease;
}
.scenario-item h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 6px;
}
.scenario-item p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ===== METRICS ===== */
.metrics-band {
  background: linear-gradient(135deg, rgba(46,230,168,0.04), transparent 60%);
  border: 1px solid rgba(46,230,168,0.12);
  border-radius: var(--radius-lg);
  padding: 48px;
  display: flex;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
  position: relative;
  overflow: hidden;
}
.metrics-band::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(46,230,168,0.1), transparent 70%);
}
.metric-item {
  flex: 1;
  min-width: 160px;
  text-align: center;
  position: relative;
}
.metric-num {
  font-size: 40px;
  font-weight: 800;
  color: var(--primary);
  font-variant-numeric: tabular-nums;
  text-shadow: 0 0 30px rgba(46,230,168,0.3);
  line-height: 1.2;
  display: block;
}
.metric-label {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 8px;
}

/* ===== SUCCESS CASE ===== */
.case-scroll {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  padding: 8px 4px 24px;
  scrollbar-width: thin;
  scrollbar-color: rgba(46,230,168,0.3) transparent;
}
.case-scroll::-webkit-scrollbar {
  height: 4px;
}
.case-scroll::-webkit-scrollbar-track {
  background: rgba(255,255,255,0.04);
  border-radius: 4px;
}
.case-scroll::-webkit-scrollbar-thumb {
  background: rgba(46,230,168,0.3);
  border-radius: 4px;
}
.case-card {
  flex: 0 0 300px;
  padding: 0;
  overflow: hidden;
}
.case-cover {
  width: 100%;
  height: 170px;
  object-fit: cover;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.case-body {
  padding: 20px;
}
.case-body h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
  line-height: 1.4;
}
.case-body p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.case-link {
  font-size: 13px;
  color: var(--primary);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap .3s ease;
}
.case-link:hover {
  gap: 10px;
}
.metrics-glass {
  margin-top: 32px;
  text-align: center;
  padding: 40px !important;
}
.metrics-glass .metric-big {
  font-size: 52px;
  font-weight: 800;
  color: var(--primary);
  font-variant-numeric: tabular-nums;
  text-shadow: 0 0 30px rgba(46,230,168,0.35);
  display: block;
  line-height: 1.2;
}

/* ===== PRICING ===== */
.pricing-grid {
  display: flex;
  gap: 24px;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 16px;
}
.pricing-card {
  flex: 1;
  max-width: 340px;
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  position: relative;
}
.pricing-card.featured {
  padding: 40px 32px;
  border-color: rgba(46,230,168,0.35);
  box-shadow: 0 0 24px rgba(46,230,168,0.08), 0 8px 32px rgba(0,0,0,0.5);
  transform: scale(1.03);
  z-index: 2;
}
.pricing-card.featured .btn-primary {
  width: 100%;
}
.pricing-tag {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(90deg, var(--primary), var(--primary-dark));
  color: #06121E;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 16px;
  border-radius: var(--radius-pill);
  white-space: nowrap;
}
.pricing-name {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 4px;
}
.pricing-desc {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 20px;
}
.pricing-price {
  font-size: 36px;
  font-weight: 800;
  color: var(--text-main);
  font-variant-numeric: tabular-nums;
  line-height: 1;
  margin-bottom: 4px;
}
.pricing-price span {
  font-size: 14px;
  font-weight: 400;
  color: var(--text-weak);
  margin-left: 4px;
}
.pricing-period {
  font-size: 13px;
  color: var(--text-weak);
  margin-bottom: 24px;
}
.pricing-features {
  list-style: none;
  margin-bottom: 28px;
  flex: 1;
}
.pricing-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--text-secondary);
  padding: 6px 0;
}
.pricing-features li i {
  color: var(--primary);
  font-size: 13px;
  margin-top: 5px;
}

/* ===== NEWSLIST ===== */
.news-timeline {
  position: relative;
  max-width: 860px;
  margin: 0 auto;
}
.news-timeline::before {
  content: '';
  position: absolute;
  left: 28px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, rgba(46,230,168,0.4), rgba(46,230,168,0.05));
}
.news-item {
  display: flex;
  gap: 20px;
  padding: 20px 0;
  position: relative;
  transition: background .3s ease;
}
.news-item:hover {
  background: rgba(255,255,255,0.02);
  border-radius: 12px;
}
.news-date {
  width: 56px;
  min-width: 56px;
  height: 60px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 14px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1;
  backdrop-filter: blur(8px);
  transition: all .3s ease;
}
.news-item:hover .news-date {
  border-color: rgba(46,230,168,0.4);
  box-shadow: 0 0 16px rgba(46,230,168,0.15);
}
.news-day {
  font-size: 24px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  color: var(--text-main);
  line-height: 1;
}
.news-month {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1;
  margin-top: 4px;
}
.news-content {
  flex: 1;
  display: block;
  padding-right: 20px;
}
.news-content-top {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
  flex-wrap: wrap;
}
.news-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.5;
  transition: color .3s ease;
}
.news-item:hover .news-title {
  color: var(--primary);
}
.news-summary {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-top: 4px;
}
.news-empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-weak);
  font-size: 15px;
  border: 1px dashed rgba(255,255,255,0.12);
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.02);
}

/* ===== FAQ ===== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.faq-item {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.03);
  backdrop-filter: blur(12px);
  transition: all .3s ease;
}
.faq-item:hover {
  border-color: rgba(46,230,168,0.2);
}
.faq-item.active {
  border-left: 3px solid var(--primary);
  box-shadow: var(--shadow-glow);
}
.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  background: transparent;
  border: none;
  text-align: left;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  transition: color .3s ease;
}
.faq-question:hover {
  color: var(--primary);
}
.faq-icon {
  width: 28px;
  height: 28px;
  min-width: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  font-size: 14px;
  transition: all .4s ease;
}
.faq-item.active .faq-icon {
  transform: rotate(45deg);
  background: rgba(46,230,168,0.15);
  border-color: var(--primary);
  color: var(--primary);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s ease;
}
.faq-answer-inner {
  padding: 0 24px 20px;
  border-left: 3px solid transparent;
}
.faq-answer-inner p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ===== CTA ===== */
.cta-banner {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  padding: 72px 48px;
  text-align: center;
  background-image: url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  border: 1px solid rgba(255,255,255,0.1);
}
.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(7,11,20,0.9), rgba(7,11,20,0.75));
}
.cta-banner * {
  position: relative;
  z-index: 1;
}
.cta-title {
  font-size: 30px;
  font-weight: 800;
  margin-bottom: 16px;
}
.cta-text {
  font-size: 14px;
  color: var(--text-secondary);
  max-width: 480px;
  margin: 0 auto 32px;
  line-height: 1.8;
}

/* ===== FOOTER ===== */
.site-footer {
  background: var(--bg-deep);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-brand .site-logo {
  margin-bottom: 16px;
  font-size: 18px;
}
.footer-brand p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 20px;
}
.footer-social {
  display: flex;
  gap: 12px;
}
.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 14px;
  transition: all .3s ease;
}
.footer-social a:hover {
  background: rgba(46,230,168,0.1);
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-3px);
}
.footer-title {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}
.footer-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 24px;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), transparent);
  border-radius: 2px;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  font-size: 13px;
  color: rgba(242,246,252,0.65);
  transition: color .3s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.footer-links a:hover {
  color: var(--primary);
}
.footer-links a i {
  font-size: 10px;
}
.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: rgba(242,246,252,0.65);
}
.footer-contact-item i {
  color: var(--primary);
  width: 16px;
  font-size: 13px;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 20px 0;
  text-align: center;
  font-size: 12px;
  color: rgba(242,246,252,0.35);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1023px) {
  .nav-left, .nav-right {
    display: none;
  }
  .nav-wrapper {
    justify-content: flex-start;
  }
  .nav-burger {
    display: flex;
    position: absolute;
    left: 0;
  }
  .nav-center {
    left: 50%;
    transform: translateX(-50%);
  }
  .hero-grid {
    flex-direction: column;
    gap: 40px;
  }
  .hero-side {
    max-width: 100%;
    width: 100%;
  }
  .features-layout {
    flex-direction: column;
    gap: 40px;
  }
  .features-intro {
    position: static;
    flex: 1;
  }
  .scenario-block, .scenario-block.reverse {
    flex-direction: column;
    gap: 32px;
  }
  .scenario-image img {
    height: 280px;
  }
  .metrics-band {
    padding: 32px;
  }
  .metric-num {
    font-size: 32px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}
@media (max-width: 767px) {
  .container {
    padding: 0 16px;
  }
  .section {
    padding: 64px 0;
  }
  .section-title {
    font-size: 24px;
  }
  .hero {
    min-height: auto;
  }
  .hero-inner {
    padding: 80px 16px;
  }
  .hero-title {
    font-size: 28px;
  }
  .hero-subtitle {
    font-size: 15px;
  }
  .hero-ctas {
    flex-direction: column;
  }
  .hero-ctas .btn-primary, .hero-ctas .btn-ghost {
    width: 100%;
  }
  .hero-stats {
    gap: 24px;
    flex-wrap: wrap;
  }
  .hero-stat-num {
    font-size: 22px;
  }
  .feature-card:nth-child(even) {
    transform: none;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .metrics-band {
    padding: 24px;
    flex-direction: column;
    gap: 24px;
  }
  .metric-item {
    text-align: left;
  }
  .metric-num {
    font-size: 28px;
  }
  .pricing-grid {
    flex-direction: column;
    align-items: stretch;
  }
  .pricing-card, .pricing-card.featured {
    max-width: 100%;
  }
  .pricing-card.featured {
    transform: scale(1.02);
  }
  .news-item {
    gap: 14px;
  }
  .news-date {
    width: 48px;
    min-width: 48px;
    height: 52px;
  }
  .news-day {
    font-size: 20px;
  }
  .news-month {
    font-size: 11px;
  }
  .faq-question {
    font-size: 15px;
    padding: 16px;
  }
  .faq-answer-inner {
    padding: 0 16px 16px;
  }
  .cta-banner {
    padding: 48px 24px;
  }
  .cta-title {
    font-size: 24px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

/* roulang page: article */
:root {
    --bg-primary: #070B14;
    --bg-secondary: #0D1424;
    --bg-card: rgba(255, 255, 255, 0.04);
    --bg-card-hover: rgba(255, 255, 255, 0.07);
    --border-glass: rgba(255, 255, 255, 0.12);
    --border-soft: rgba(255, 255, 255, 0.06);
    --accent: #2EE6A8;
    --accent-hover: #45F5BC;
    --accent-dark: #1BBF87;
    --warm: #FFB347;
    --text-primary: #F2F6FC;
    --text-secondary: rgba(242, 246, 252, 0.65);
    --text-muted: rgba(242, 246, 252, 0.4);
    --radius-lg: 20px;
    --radius-md: 16px;
    --radius-pill: 999px;
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45);
    --shadow-glow: 0 0 24px rgba(46, 230, 168, 0.12);
    --container: 1200px;
    --header-height: 64px;
    --space-section: 80px;
}
*,
*::before,
*::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    background: var(--bg-primary);
    background: linear-gradient(160deg, #0D1424 0%, #070B14 35%, #0A101D 70%, #0D1424 100%);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    font-size: 15px;
    line-height: 1.7;
    font-weight: 400;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: color 0.25s ease, border-color 0.25s ease, background 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease; }
button { cursor: pointer; font-family: inherit; }
input, select, textarea { font-family: inherit; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.fa, .fas, .far, .fab { line-height: 1; }

.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 0 32px;
    border: none;
    border-radius: var(--radius-pill);
    background: linear-gradient(135deg, var(--accent) 0%, #28C89A 100%);
    color: #06121E;
    font-size: 15px;
    font-weight: 700;
    letter-spacing: 0.02em;
    box-shadow: 0 0 24px rgba(46, 230, 168, 0.18), 0 0 64px rgba(46, 230, 168, 0.08), 0 8px 24px rgba(0, 0, 0, 0.35);
    transition: all 0.3s ease;
    gap: 8px;
    white-space: nowrap;
}
.btn-primary:hover {
    background: linear-gradient(135deg, var(--accent-hover) 0%, var(--accent) 100%);
    box-shadow: 0 0 32px rgba(46, 230, 168, 0.28), 0 0 80px rgba(46, 230, 168, 0.12), 0 10px 28px rgba(0, 0, 0, 0.4);
    transform: translateY(-2px);
    color: #06121E;
}
.btn-primary:active { transform: translateY(0); box-shadow: 0 0 18px rgba(46, 230, 168, 0.15); }
.btn-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 0 32px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-pill);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    font-size: 15px;
    font-weight: 600;
    transition: all 0.3s ease;
    gap: 8px;
    white-space: nowrap;
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); background: rgba(46, 230, 168, 0.06); box-shadow: 0 0 16px rgba(46, 230, 168, 0.08); }
.btn-lg { min-height: 54px; padding: 0 40px; font-size: 16px; }
.btn-sm { min-height: 36px; padding: 0 20px; font-size: 13px; }

.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    height: var(--header-height);
    background: rgba(7, 11, 20, 0.6);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    transition: background 0.35s ease, box-shadow 0.35s ease;
}
.site-header.scrolled {
    background: rgba(7, 11, 20, 0.85);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
}
.nav-wrapper {
    max-width: var(--container);
    height: 100%;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
}
.nav-left, .nav-right { display: flex; align-items: center; gap: 24px; }
.nav-left { flex: 1; justify-content: flex-start; }
.nav-right { flex: 1; justify-content: flex-end; gap: 20px; }
.nav-list { display: flex; align-items: center; gap: 22px; }
.nav-list a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: rgba(242, 246, 252, 0.8);
    font-size: 14px;
    font-weight: 500;
    line-height: 1;
    padding: 8px 2px;
    border-bottom: 2px solid transparent;
    transition: color 0.25s ease, border-color 0.25s ease;
}
.nav-list a i { font-size: 13px; opacity: 0.7; }
.nav-list a:hover { color: var(--accent); border-color: var(--accent); text-shadow: 0 0 12px rgba(46, 230, 168, 0.4); }
.nav-list a.active { color: var(--accent); border-color: var(--accent); }
.nav-list a.active::after { content: ''; width: 4px; height: 4px; border-radius: 50%; background: var(--accent); display: inline-block; margin-left: 2px; box-shadow: 0 0 8px var(--accent); }
.nav-center {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}
.site-logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 19px;
    letter-spacing: 0.05em;
    color: var(--text-primary);
    white-space: nowrap;
    transition: color 0.25s ease;
}
.site-logo i { color: var(--accent); font-size: 20px; filter: drop-shadow(0 0 8px rgba(46, 230, 168, 0.5)); }
.site-logo:hover { color: var(--accent); }
.nav-cta {
    min-height: 38px;
    padding: 0 22px;
    font-size: 13px;
    box-shadow: 0 0 18px rgba(46, 230, 168, 0.16), 0 0 48px rgba(46, 230, 168, 0.06);
}
.nav-burger {
    display: none;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 16px;
    z-index: 1001;
    transition: all 0.3s ease;
}
.nav-burger:hover { border-color: var(--accent); color: var(--accent); }
.nav-burger i { transition: transform 0.3s ease; }
body.no-scroll { overflow: hidden; }

.article-hero {
    position: relative;
    padding: 120px 0 64px;
    background:
        linear-gradient(135deg, rgba(7, 11, 20, 0.88) 0%, rgba(13, 20, 36, 0.72) 100%),
        url('/assets/images/backpic/back-1.png') center/cover no-repeat;
    border-bottom: 1px solid var(--border-soft);
}
.article-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 460px;
    height: 100%;
    background: radial-gradient(ellipse at left center, rgba(46, 230, 168, 0.1) 0%, transparent 70%);
    pointer-events: none;
}
.breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 28px;
    position: relative;
    z-index: 1;
}
.breadcrumb a { color: var(--text-secondary); transition: color 0.25s ease; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb-sep { color: rgba(255, 255, 255, 0.3); }
.breadcrumb-current { color: var(--text-secondary); max-width: 480px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.article-title {
    font-size: 36px;
    font-weight: 700;
    line-height: 1.4;
    color: var(--text-primary);
    max-width: 860px;
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
    letter-spacing: -0.01em;
}
.article-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 13px;
    color: var(--text-secondary);
    position: relative;
    z-index: 1;
}
.article-meta .meta-item { display: inline-flex; align-items: center; gap: 6px; }
.article-meta i { color: var(--accent); font-size: 12px; }
.meta-dot { width: 4px; height: 4px; border-radius: 50%; background: rgba(255, 255, 255, 0.25); }
.category-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: var(--radius-pill);
    background: rgba(46, 230, 168, 0.1);
    border: 1px solid rgba(46, 230, 168, 0.2);
    color: var(--accent);
    font-size: 12px;
    font-weight: 600;
    transition: all 0.25s ease;
}
.category-badge:hover { background: rgba(46, 230, 168, 0.18); box-shadow: 0 0 16px rgba(46, 230, 168, 0.15); }

.article-section { padding: 64px 0 var(--space-section); }
.article-body { max-width: 760px; margin: 0 auto; }
.article-content { font-size: 15px; line-height: 1.8; color: var(--text-primary); }
.article-content > p:first-child::first-letter { font-size: 30px; font-weight: 700; color: var(--accent); line-height: 1.2; }
.article-content h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 48px 0 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-soft);
    position: relative;
}
.article-content h2::before {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 56px;
    height: 2px;
    background: var(--accent);
    box-shadow: 0 0 12px rgba(46, 230, 168, 0.4);
}
.article-content h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 36px 0 12px;
}
.article-content h4 {
    font-size: 17px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 28px 0 10px;
}
.article-content p { margin-bottom: 1.5em; color: rgba(242, 246, 252, 0.85); }
.article-content strong { color: var(--accent); font-weight: 600; }
.article-content a { color: var(--accent); border-bottom: 1px solid rgba(46, 230, 168, 0.3); padding-bottom: 1px; }
.article-content a:hover { color: var(--accent-hover); border-bottom-color: var(--accent-hover); box-shadow: 0 2px 12px rgba(46, 230, 168, 0.1); }
.article-content blockquote {
    background: rgba(255, 255, 255, 0.04);
    border-left: 3px solid var(--accent);
    border-radius: 0 12px 12px 0;
    padding: 20px 24px;
    margin: 24px 0;
    color: rgba(242, 246, 252, 0.75);
    font-style: italic;
}
.article-content ul, .article-content ol { margin: 0 0 1.5em 1.4em; color: rgba(242, 246, 252, 0.85); }
.article-content li { margin-bottom: 8px; }
.article-content ul li::marker { color: var(--accent); }
.article-content ol li::marker { color: var(--accent); font-weight: 600; }
.article-content img { border-radius: 12px; margin: 24px 0; border: 1px solid rgba(255, 255, 255, 0.08); box-shadow: var(--shadow-card); }
.article-content hr { border: none; border-top: 1px solid var(--border-soft); margin: 36px 0; }
.article-content code {
    background: rgba(255, 255, 255, 0.08);
    border-radius: 6px;
    padding: 2px 8px;
    font-size: 13px;
    font-family: "SFMono-Regular", Consolas, monospace;
    color: var(--accent);
}
.article-content pre {
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    padding: 20px 24px;
    overflow-x: auto;
    margin: 24px 0;
}
.article-content pre code { background: none; padding: 0; color: rgba(242, 246, 252, 0.85); }
.article-content table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: 14px; }
.article-content th {
    background: rgba(255, 255, 255, 0.06);
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-glass);
}
.article-content td { padding: 12px 16px; border-bottom: 1px solid var(--border-soft); color: rgba(242, 246, 252, 0.8); }

.article-empty {
    text-align: center;
    padding: 80px 24px;
}
.article-empty h2 { font-size: 24px; margin-bottom: 12px; }
.article-empty p { color: var(--text-secondary); margin-bottom: 24px; }

.article-pager {
    max-width: 760px;
    margin: 0 auto;
    padding: 40px 0 24px;
    border-top: 1px solid var(--border-soft);
    display: flex;
    justify-content: space-between;
    gap: 20px;
}
.pager-btn {
    flex: 1;
    display: block;
    padding: 20px 24px;
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
}
.pager-btn:hover { background: var(--bg-card-hover); border-color: rgba(46, 230, 168, 0.3); transform: translateY(-2px); box-shadow: var(--shadow-glow); }
.pager-prev { text-align: left; }
.pager-next { text-align: right; }
.pager-label { display: block; font-size: 12px; color: var(--text-muted); margin-bottom: 6px; }
.pager-title { display: block; font-size: 15px; font-weight: 600; color: var(--text-primary); line-height: 1.5; }

.related-section { padding: 32px 0 64px; position: relative; }
.related-section .container { max-width: 1000px; }
.related-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 32px; }
.related-header h2 { font-size: 28px; font-weight: 700; position: relative; padding-left: 16px; }
.related-header h2::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 22px;
    border-radius: 4px;
    background: var(--accent);
    box-shadow: 0 0 12px rgba(46, 230, 168, 0.5);
}
.related-header .view-all { font-size: 13px; color: var(--text-secondary); display: inline-flex; align-items: center; gap: 6px; }
.related-header .view-all:hover { color: var(--accent); }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.related-card {
    display: block;
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all 0.35s ease;
}
.related-card:hover { background: var(--bg-card-hover); border-color: rgba(46, 230, 168, 0.25); transform: translateY(-4px); box-shadow: var(--shadow-glow); }
.related-cover { width: 100%; aspect-ratio: 16 / 9; overflow: hidden; background: rgba(255, 255, 255, 0.03); }
.related-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.related-card:hover .related-cover img { transform: scale(1.04); }
.related-card-body { padding: 18px 20px 20px; }
.related-card-body h3 { font-size: 15px; font-weight: 600; line-height: 1.5; color: var(--text-primary); margin-bottom: 12px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; min-height: 45px; }
.related-card-body h3:hover { color: var(--accent); }
.related-date { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; color: var(--text-muted); }
.related-date i { color: var(--accent); font-size: 11px; }
.return-row { text-align: center; margin-top: 48px; }

.cta-section { padding: 0 0 var(--space-section); }
.cta-banner {
    position: relative;
    border-radius: var(--radius-lg);
    padding: 72px 48px;
    text-align: center;
    background:
        linear-gradient(135deg, rgba(7, 11, 20, 0.75) 0%, rgba(13, 20, 36, 0.65) 100%),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
    border: 1px solid rgba(255, 255, 255, 0.08);
    overflow: hidden;
}
.cta-banner::before {
    content: '';
    position: absolute;
    top: -40%;
    right: -15%;
    width: 420px;
    height: 420px;
    background: radial-gradient(circle, rgba(46, 230, 168, 0.12) 0%, transparent 70%);
    pointer-events: none;
}
.cta-banner h2 { font-size: 28px; font-weight: 700; margin-bottom: 12px; }
.cta-banner p { color: var(--text-secondary); font-size: 14px; max-width: 420px; margin: 0 auto 28px; }
.cta-banner .btn-primary { position: relative; z-index: 1; }

.site-footer {
    background: #05080F;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 56px 0 24px;
    font-size: 13px;
}
.footer-grid { display: grid; grid-template-columns: 4fr 2.2fr 2fr 2.4fr; gap: 40px; margin-bottom: 40px; }
.footer-brand .site-logo { margin-bottom: 16px; }
.footer-brand p { color: var(--text-muted); font-size: 13px; line-height: 1.8; max-width: 260px; }
.footer-social { display: flex; gap: 10px; margin-top: 18px; }
.footer-social a {
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--text-secondary);
    font-size: 14px;
    transition: all 0.3s ease;
}
.footer-social a:hover { color: var(--accent); border-color: var(--accent); background: rgba(46, 230, 168, 0.08); box-shadow: 0 0 16px rgba(46, 230, 168, 0.1); }
.footer-title { font-size: 14px; font-weight: 600; color: var(--text-primary); margin-bottom: 18px; position: relative; padding-bottom: 10px; }
.footer-title::after { content: ''; position: absolute; left: 0; bottom: 0; width: 24px; height: 2px; background: var(--accent); }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { display: inline-flex; align-items: center; gap: 6px; color: var(--text-secondary); transition: all 0.25s ease; }
.footer-links a i { font-size: 11px; color: rgba(255, 255, 255, 0.3); transition: color 0.25s ease, transform 0.25s ease; }
.footer-links a:hover { color: var(--accent); }
.footer-links a:hover i { color: var(--accent); transform: translateX(2px); }
.footer-contact { display: flex; flex-direction: column; gap: 10px; color: var(--text-secondary); }
.footer-contact-item { display: flex; align-items: center; gap: 8px; }
.footer-contact-item i { color: var(--accent); font-size: 12px; }
.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    text-align: center;
    font-size: 12px;
    color: rgba(242, 246, 252, 0.35);
}

@media (max-width: 1024px) {
    :root { --space-section: 64px; }
    .footer-grid { grid-template-columns: 1fr 1fr 1fr; }
    .footer-brand { grid-column: 1 / -1; }
    .footer-brand p { max-width: 100%; }
}
@media (max-width: 991px) {
    .nav-burger { display: inline-flex; }
    .nav-left, .nav-right {
        position: fixed;
        left: 0;
        right: 0;
        width: 100%;
        height: auto;
        background: rgba(7, 11, 20, 0.97);
        backdrop-filter: blur(24px);
        -webkit-backdrop-filter: blur(24px);
        flex-direction: column;
        gap: 8px;
        padding: 24px;
        margin: 0;
        opacity: 0;
        visibility: hidden;
        transform: translateY(12px);
        transition: all 0.3s ease;
        z-index: 997;
        border-radius: 0 0 16px 16px;
    }
    .nav-left {
        top: 64px;
        padding-bottom: 8px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }
    .nav-right {
        top: auto;
        bottom: 0;
        padding-top: 12px;
        border-top: 1px solid rgba(255, 255, 255, 0.06);
        justify-content: center;
    }
    .nav-list {
        flex-direction: column;
        align-items: center;
        gap: 8px;
        width: 100%;
    }
    .nav-list a {
        font-size: 18px;
        line-height: 48px;
        justify-content: center;
        padding: 0 12px;
        width: 100%;
        border-bottom: none;
    }
    .nav-list a.active::after { margin-left: 8px; }
    .site-header.nav-open .nav-left,
    .site-header.nav-open .nav-right {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }
    .site-header.nav-open .nav-burger i { transform: rotate(90deg); }
    .nav-cta { margin-top: 12px; min-height: 44px; width: 100%; max-width: 280px; }
    .nav-center { z-index: 1001; }
    .nav-left { z-index: 997; }
    .nav-right { z-index: 998; }
    .article-title { font-size: 32px; }
    .related-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
}
@media (max-width: 767px) {
    .article-hero { padding: 100px 0 48px; }
    .article-title { font-size: 28px; line-height: 1.4; }
    .article-meta { gap: 8px; }
    .article-content { font-size: 15px; }
    .article-pager { flex-direction: column; gap: 12px; }
    .related-grid { grid-template-columns: 1fr; }
    .related-card:last-child { display: none; }
    .cta-banner { padding: 48px 24px; }
    .cta-banner h2 { font-size: 24px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
    .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 575px) {
    :root { --space-section: 48px; }
    .container { padding: 0 16px; }
    .nav-wrapper { padding: 0 16px; }
    .footer-grid { grid-template-columns: 1fr; }
    .related-card:last-child { display: block; }
}

/* roulang page: category1 */
:root {
            --bg-base: #070B14;
            --bg-deep: #04070D;
            --bg-soft: #0D1424;
            --accent: #2EE6A8;
            --accent-bright: #35F0C0;
            --accent-dark: #1FBF8A;
            --amber: #FFB347;
            --text-main: #F2F7F9;
            --text-body: rgba(236, 244, 247, 0.72);
            --text-dim: rgba(236, 244, 247, 0.48);
            --glass-bg: rgba(255, 255, 255, 0.045);
            --glass-border: rgba(255, 255, 255, 0.12);
            --radius-lg: 20px;
            --radius-md: 16px;
            --radius-sm: 12px;
            --radius-pill: 999px;
            --shadow-black: 0 8px 32px rgba(0, 0, 0, 0.45);
            --shadow-accent: 0 0 24px rgba(46, 230, 168, 0.08);
            --space-section: 88px;
            --container-width: 1200px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg-base);
            color: var(--text-main);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        body.menu-open {
            overflow: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }

        .container {
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 48px;
            padding: 0 32px;
            background: linear-gradient(135deg, #2EE6A8, #22C88E);
            color: #06121E;
            font-weight: 700;
            font-size: 15px;
            border-radius: var(--radius-pill);
            border: none;
            box-shadow: 0 0 24px rgba(46, 230, 168, 0.35), 0 0 64px rgba(46, 230, 168, 0.18), 0 8px 32px rgba(0, 0, 0, 0.3);
            transition: all 0.3s ease;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 32px rgba(46, 230, 168, 0.5), 0 0 80px rgba(46, 230, 168, 0.25), 0 12px 36px rgba(0, 0, 0, 0.35);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 0 16px rgba(46, 230, 168, 0.3), 0 4px 16px rgba(0, 0, 0, 0.3);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 48px;
            padding: 0 32px;
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-main);
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: var(--radius-pill);
            font-weight: 600;
            font-size: 15px;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            transition: all 0.3s ease;
        }
        .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(46, 230, 168, 0.06);
        }
        .btn-large {
            min-height: 54px;
            padding: 0 40px;
            font-size: 16px;
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: 64px;
            background: rgba(7, 11, 20, 0.6);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: background 0.35s ease, box-shadow 0.35s ease;
        }
        .site-header.scrolled {
            background: rgba(7, 11, 20, 0.88);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
        }
        .nav-wrapper {
            max-width: var(--container-width);
            margin: 0 auto;
            height: 64px;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            position: relative;
        }
        .nav-left,
        .nav-right {
            flex: 1;
            display: flex;
            align-items: center;
            min-width: 0;
        }
        .nav-left {
            justify-content: flex-start;
        }
        .nav-right {
            justify-content: flex-end;
            gap: 18px;
        }
        .nav-center {
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            z-index: 2;
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-list a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: rgba(236, 244, 247, 0.82);
            border-radius: var(--radius-pill);
            transition: color 0.25s ease, background 0.25s ease;
        }
        .nav-list a i {
            font-size: 13px;
            color: rgba(236, 244, 247, 0.5);
            transition: color 0.25s;
        }
        .nav-list a:hover {
            color: var(--accent);
            background: rgba(46, 230, 168, 0.08);
        }
        .nav-list a:hover i {
            color: var(--accent);
        }
        .nav-list a.active {
            color: var(--accent);
            font-weight: 600;
        }
        .nav-list a.active::after {
            content: '';
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--accent);
            box-shadow: 0 0 8px var(--accent);
            margin-left: 2px;
        }
        .site-logo {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 18px;
            font-weight: 700;
            letter-spacing: 0.05em;
            color: var(--text-main);
            white-space: nowrap;
            transition: color 0.25s ease;
        }
        .site-logo i {
            color: var(--accent);
            font-size: 16px;
            filter: drop-shadow(0 0 6px rgba(46, 230, 168, 0.5));
        }
        .site-logo:hover {
            color: var(--accent);
        }
        .nav-cta {
            min-height: 38px;
            padding: 0 20px;
            font-size: 13px;
        }

        .nav-burger {
            display: none;
            width: 40px;
            height: 40px;
            border: 1px solid rgba(255, 255, 255, 0.16);
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-main);
            font-size: 16px;
            align-items: center;
            justify-content: center;
            transition: border-color 0.25s, color 0.25s;
            flex-shrink: 0;
        }
        .nav-burger:hover {
            border-color: var(--accent);
            color: var(--accent);
        }

        .menu-backdrop {
            position: fixed;
            inset: 0;
            z-index: 996;
            background: rgba(4, 7, 13, 0.65);
            backdrop-filter: blur(3px);
            -webkit-backdrop-filter: blur(3px);
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease;
        }
        body.menu-open .menu-backdrop {
            opacity: 1;
            pointer-events: auto;
        }

        .mobile-drawer {
            position: fixed;
            top: 0;
            right: 0;
            bottom: 0;
            z-index: 998;
            width: min(320px, 82vw);
            background: rgba(7, 11, 20, 0.97);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-left: 1px solid rgba(255, 255, 255, 0.08);
            padding: 88px 32px 32px;
            transform: translateX(100%);
            transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
            display: flex;
            flex-direction: column;
            gap: 8px;
            overflow-y: auto;
        }
        body.menu-open .mobile-drawer {
            transform: translateX(0);
        }
        .mobile-drawer a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 14px 16px;
            font-size: 18px;
            font-weight: 500;
            color: rgba(236, 244, 247, 0.85);
            border-radius: 14px;
            transition: background 0.25s, color 0.25s;
        }
        .mobile-drawer a:hover,
        .mobile-drawer a.active {
            background: rgba(46, 230, 168, 0.08);
            color: var(--accent);
        }
        .mobile-drawer a i {
            width: 20px;
            text-align: center;
            font-size: 16px;
            color: rgba(236, 244, 247, 0.5);
        }
        .mobile-drawer .drawer-cta {
            margin-top: 12px;
            justify-content: center;
            font-size: 16px;
            color: #06121E;
            background: linear-gradient(135deg, #2EE6A8, #22C88E);
            border-radius: var(--radius-pill);
            font-weight: 700;
            box-shadow: 0 0 24px rgba(46, 230, 168, 0.35);
        }
        .mobile-drawer .drawer-cta i {
            color: #06121E;
        }

        .page-hero {
            position: relative;
            padding: 160px 0 88px;
            background-color: var(--bg-soft);
            background-image: linear-gradient(135deg, rgba(7, 11, 20, 0.92), rgba(13, 20, 36, 0.82)), url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            overflow: hidden;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }
        .page-hero::before {
            content: '';
            position: absolute;
            top: -20%;
            left: -10%;
            width: 60%;
            height: 140%;
            background: radial-gradient(ellipse, rgba(46, 230, 168, 0.12), transparent 65%);
            pointer-events: none;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            right: -5%;
            width: 50%;
            height: 120%;
            background: radial-gradient(ellipse, rgba(255, 179, 71, 0.06), transparent 60%);
            pointer-events: none;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 40px;
            font-size: 13px;
            color: var(--text-dim);
            position: relative;
            z-index: 1;
        }
        .breadcrumb a {
            color: var(--text-dim);
            transition: color 0.2s;
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb-sep {
            color: rgba(236, 244, 247, 0.3);
            font-size: 12px;
        }
        .breadcrumb-current {
            color: var(--text-body);
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: var(--radius-pill);
            background: rgba(46, 230, 168, 0.1);
            border: 1px solid rgba(46, 230, 168, 0.25);
            color: var(--accent);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.03em;
            margin-bottom: 20px;
        }
        .hero-title {
            font-size: 46px;
            font-weight: 700;
            line-height: 1.2;
            letter-spacing: -0.01em;
            margin-bottom: 14px;
        }
        .hero-title .text-accent {
            background: linear-gradient(120deg, #2EE6A8, #A8F0D8);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-subtitle {
            font-size: 18px;
            color: var(--text-body);
            margin-bottom: 16px;
            font-weight: 500;
        }
        .hero-desc {
            font-size: 15px;
            color: var(--text-dim);
            max-width: 480px;
            margin-bottom: 32px;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .hero-media {
            position: relative;
            z-index: 1;
        }
        .hero-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid rgba(46, 230, 168, 0.3);
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5), 0 0 40px rgba(46, 230, 168, 0.08);
            transition: transform 0.4s ease, box-shadow 0.4s ease;
        }
        .hero-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 24px 70px rgba(0, 0, 0, 0.6), 0 0 50px rgba(46, 230, 168, 0.12);
        }
        .hero-card img {
            width: 100%;
            height: 320px;
            object-fit: cover;
        }
        .hero-card-tag {
            position: absolute;
            left: 16px;
            bottom: 16px;
            padding: 8px 16px;
            background: rgba(7, 11, 20, 0.72);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.14);
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 500;
            color: var(--text-main);
        }

        .section {
            padding: var(--space-section) 0;
        }
        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 20px;
            margin-bottom: 48px;
            flex-wrap: wrap;
        }
        .section-kicker {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.1em;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 8px;
        }
        .section-title {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
        }
        .section-note {
            font-size: 14px;
            color: var(--text-dim);
            max-width: 420px;
        }
        .section-desc {
            font-size: 15px;
            color: var(--text-dim);
            max-width: 560px;
        }

        .capabilities {
            background: linear-gradient(180deg, var(--bg-base) 0%, var(--bg-soft) 100%);
        }
        .capability-grid {
            align-items: flex-start;
        }
        .capability-card {
            background: var(--glass-bg);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--glass-border);
            border-top-color: rgba(255, 255, 255, 0.16);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-black);
            transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .capability-card:hover {
            transform: translateY(-6px);
            border-color: rgba(46, 230, 168, 0.35);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5), 0 0 32px rgba(46, 230, 168, 0.1);
        }
        .capability-card--offset {
            transform: translateY(30px);
        }
        .capability-card--offset:hover {
            transform: translateY(24px);
        }
        .capability-media img {
            width: 100%;
            height: 220px;
            object-fit: cover;
        }
        .capability-body {
            padding: 28px;
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            flex: 1;
        }
        .capability-body h3 {
            font-size: 22px;
            margin: 14px 0 10px;
            line-height: 1.4;
        }
        .capability-body p {
            font-size: 14px;
            color: var(--text-body);
            margin-bottom: 20px;
            line-height: 1.8;
        }
        .card-link {
            margin-top: auto;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--accent);
            transition: gap 0.25s ease, color 0.25s;
        }
        .card-link:hover {
            gap: 12px;
            color: var(--accent-bright);
        }

        .badge {
            display: inline-flex;
            padding: 5px 12px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 600;
        }
        .badge-accent {
            background: rgba(46, 230, 168, 0.1);
            color: var(--accent);
            border: 1px solid rgba(46, 230, 168, 0.2);
        }

        .quote-banner {
            position: relative;
            padding: 96px 0;
            background-color: var(--bg-deep);
            background-image: linear-gradient(rgba(4, 7, 13, 0.88), rgba(4, 7, 13, 0.88)), url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            text-align: center;
        }
        .quote-inner {
            max-width: 760px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .quote-mark {
            font-size: 40px;
            color: var(--accent);
            opacity: 0.7;
            margin-bottom: 20px;
        }
        .quote-text {
            font-size: 22px;
            font-weight: 600;
            line-height: 1.6;
            color: var(--text-main);
            margin-bottom: 16px;
        }
        .quote-author {
            font-size: 13px;
            color: var(--text-dim);
            letter-spacing: 0.02em;
        }

        .masonry-section {
            background: var(--bg-base);
        }
        .masonry-gallery {
            columns: 3;
            column-gap: 24px;
        }
        .masonry-card {
            break-inside: avoid;
            margin-bottom: 24px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-black);
            transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
        }
        .masonry-card:hover {
            transform: translateY(-4px);
            border-color: rgba(46, 230, 168, 0.3);
            box-shadow: 0 12px 36px rgba(0, 0, 0, 0.5), 0 0 24px rgba(46, 230, 168, 0.08);
        }
        .masonry-media img {
            width: 100%;
            height: 150px;
            object-fit: cover;
        }
        .masonry-card:nth-child(1) .masonry-media img {
            height: 170px;
        }
        .masonry-card:nth-child(2) .masonry-media img {
            height: 210px;
        }
        .masonry-card:nth-child(3) .masonry-media img {
            height: 150px;
        }
        .masonry-card:nth-child(4) .masonry-media img {
            height: 190px;
        }
        .masonry-card:nth-child(5) .masonry-media img {
            height: 230px;
        }
        .masonry-card:nth-child(6) .masonry-media img {
            height: 160px;
        }
        .masonry-body {
            padding: 22px;
        }
        .masonry-body h3 {
            font-size: 18px;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .masonry-body p {
            font-size: 13px;
            color: var(--text-body);
            line-height: 1.8;
            margin-bottom: 14px;
        }
        .tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 12px;
            color: var(--text-dim);
        }
        .tag-accent {
            background: rgba(46, 230, 168, 0.1);
            border-color: rgba(46, 230, 168, 0.2);
            color: var(--accent);
        }

        .faq-section {
            background: linear-gradient(180deg, var(--bg-soft) 0%, var(--bg-base) 100%);
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .faq-item {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }
        .faq-item:hover {
            border-color: rgba(255, 255, 255, 0.2);
        }
        .faq-item.is-open {
            border-color: rgba(46, 230, 168, 0.4);
            box-shadow: 0 0 24px rgba(46, 230, 168, 0.06);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            background: transparent;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            text-align: left;
            transition: color 0.3s ease;
        }
        .faq-question i {
            transition: transform 0.35s ease;
            color: var(--text-dim);
            font-size: 14px;
            flex-shrink: 0;
        }
        .faq-item.is-open .faq-question {
            color: var(--accent);
        }
        .faq-item.is-open .faq-question i {
            transform: rotate(45deg);
            color: var(--accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
        }
        .faq-answer p {
            padding: 0 24px 22px 27px;
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.8;
            border-left: 3px solid var(--accent);
            margin-left: 24px;
        }

        .cta-section {
            padding: 56px 0 96px;
            background: var(--bg-base);
        }
        .cta-panel {
            position: relative;
            background-image: linear-gradient(rgba(7, 11, 20, 0.82), rgba(7, 11, 20, 0.82)), url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            padding: 64px 32px;
            text-align: center;
            overflow: hidden;
        }
        .cta-panel::before {
            content: '';
            position: absolute;
            top: -60%;
            left: 50%;
            transform: translateX(-50%);
            width: 400px;
            height: 300px;
            background: radial-gradient(ellipse, rgba(46, 230, 168, 0.12), transparent 65%);
            pointer-events: none;
        }
        .cta-panel h2 {
            font-size: 30px;
            font-weight: 700;
            margin-bottom: 12px;
            position: relative;
        }
        .cta-panel p {
            font-size: 15px;
            color: var(--text-body);
            margin-bottom: 32px;
            position: relative;
        }
        .cta-panel .btn-primary {
            position: relative;
        }

        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 64px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 0.8fr 0.8fr 1.1fr;
            gap: 40px;
            padding-bottom: 48px;
        }
        .footer-brand .site-logo {
            font-size: 17px;
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 13px;
            color: var(--text-dim);
            line-height: 1.8;
            max-width: 300px;
            margin-bottom: 20px;
        }
        .footer-social {
            display: flex;
            gap: 10px;
        }
        .footer-social a {
            width: 36px;
            height: 36px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-pill);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.08);
            color: var(--text-dim);
            font-size: 15px;
            transition: all 0.3s ease;
        }
        .footer-social a:hover {
            color: var(--accent);
            border-color: rgba(46, 230, 168, 0.4);
            background: rgba(46, 230, 168, 0.08);
            transform: translateY(-2px);
        }
        .footer-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 16px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 24px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            box-shadow: 0 0 8px rgba(46, 230, 168, 0.4);
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: rgba(236, 244, 247, 0.62);
            transition: color 0.25s, padding-left 0.25s;
        }
        .footer-links a i {
            font-size: 11px;
            color: rgba(46, 230, 168, 0.5);
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .footer-contact-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: rgba(236, 244, 247, 0.62);
        }
        .footer-contact-item i {
            color: var(--accent);
            width: 16px;
            text-align: center;
            font-size: 13px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding: 20px 0;
            font-size: 12px;
            color: rgba(236, 244, 247, 0.35);
            text-align: center;
        }

        @media (max-width: 1023px) and (min-width: 641px) {
            .masonry-gallery {
                columns: 2;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .hero-card img {
                height: 280px;
            }
        }

        @media (max-width: 991px) {
            .nav-left,
            .nav-right {
                display: none;
            }
            .nav-burger {
                display: inline-flex;
            }
            .nav-center {
                position: absolute;
                left: 50%;
                transform: translateX(-50%);
            }
            .nav-wrapper {
                padding: 0 16px;
            }
        }

        @media (max-width: 640px) {
            :root {
                --space-section: 56px;
            }
            .container {
                padding: 0 16px;
            }
            .page-hero {
                padding: 130px 0 56px;
            }
            .hero-title {
                font-size: 30px;
            }
            .hero-subtitle {
                font-size: 16px;
            }
            .hero-desc {
                font-size: 14px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-actions .btn-primary,
            .hero-actions .btn-outline {
                width: 100%;
            }
            .hero-card img {
                height: 220px;
            }
            .section-title {
                font-size: 24px;
            }
            .section-head {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
                margin-bottom: 32px;
            }
            .capability-card--offset {
                transform: none;
                margin-top: 20px;
            }
            .capability-card--offset:hover {
                transform: translateY(-4px);
            }
            .capability-media img {
                height: 180px;
            }
            .masonry-gallery {
                columns: 1;
            }
            .masonry-card:nth-child(n) .masonry-media img {
                height: 180px;
            }
            .quote-banner {
                padding: 56px 0;
            }
            .quote-text {
                font-size: 18px;
            }
            .cta-panel {
                padding: 40px 20px;
            }
            .cta-panel h2 {
                font-size: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }

/* roulang page: category2 */
/* ====== 设计变量 ====== */
    :root {
      --bg-primary: #070B14;
      --bg-secondary: #0D1424;
      --primary: #2EE6A8;
      --primary-dark: #1FBF8A;
      --accent: #FFB347;
      --text-primary: #FFFFFF;
      --text-secondary: rgba(255, 255, 255, 0.64);
      --text-muted: rgba(255, 255, 255, 0.38);
      --glass-bg: rgba(255, 255, 255, 0.04);
      --glass-border: rgba(255, 255, 255, 0.10);
      --glass-highlight: rgba(255, 255, 255, 0.12);
      --radius-lg: 20px;
      --radius-md: 16px;
      --radius-pill: 999px;
      --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45);
      --shadow-primary: 0 0 24px rgba(46, 230, 168, 0.18), 0 0 64px rgba(46, 230, 168, 0.10);
      --transition-base: 0.3s ease;
    }

    /* ====== Reset / Base ====== */
    *,
    *::before,
    *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
      background: var(--bg-primary);
      color: var(--text-primary);
      line-height: 1.7;
      font-size: 15px;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    body.menu-open {
      overflow: hidden;
    }

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

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

    button,
    input {
      font-family: inherit;
      outline: none;
    }

    h1,
    h2,
    h3,
    h4 {
      font-weight: 700;
      line-height: 1.4;
    }

    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }

    @media (max-width: 575px) {
      .container {
        padding: 0 16px;
      }
    }

    /* ====== 按钮 ====== */
    .btn-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 40px;
      padding: 0 26px;
      border: none;
      border-radius: var(--radius-pill);
      background: linear-gradient(135deg, #2EE6A8, #1FBF8A);
      color: #06121E;
      font-size: 14px;
      font-weight: 700;
      cursor: pointer;
      text-decoration: none;
      transition: all var(--transition-base);
      box-shadow: 0 0 24px rgba(46, 230, 168, 0.18), 0 0 64px rgba(46, 230, 168, 0.10);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 0 32px rgba(46, 230, 168, 0.32), 0 0 80px rgba(46, 230, 168, 0.16);
      color: #06121E;
    }

    .btn-primary:active {
      transform: translateY(0);
      box-shadow: 0 0 16px rgba(46, 230, 168, 0.2);
    }

    .btn-lg {
      min-height: 48px;
      padding: 0 36px;
      font-size: 15px;
    }

    /* ====== 导航 ====== */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 1000;
      height: 64px;
      background: rgba(7, 11, 20, 0.6);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      transition: background var(--transition-base);
    }

    .site-header.scrolled {
      background: rgba(7, 11, 20, 0.88);
      border-bottom-color: rgba(255, 255, 255, 0.09);
    }

    .nav-wrapper {
      max-width: 1200px;
      height: 64px;
      margin: 0 auto;
      padding: 0 24px;
      display: grid;
      grid-template-columns: 1fr auto 1fr;
      align-items: center;
    }

    .nav-left {
      display: flex;
      align-items: center;
    }

    .nav-right {
      display: flex;
      align-items: center;
      justify-content: flex-end;
      gap: 20px;
    }

    .nav-list {
      display: flex;
      align-items: center;
      gap: 18px;
    }

    .nav-list a {
      color: rgba(255, 255, 255, 0.75);
      font-size: 14px;
      text-decoration: none;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 0;
      border-bottom: 2px solid transparent;
      transition: color var(--transition-base);
      position: relative;
    }

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

    .nav-list a.active {
      color: var(--primary);
    }

    .nav-list a.active::after {
      content: '';
      display: inline-block;
      width: 5px;
      height: 5px;
      border-radius: 50%;
      background: var(--primary);
      margin-left: 4px;
      box-shadow: 0 0 8px rgba(46, 230, 168, 0.8);
    }

    .nav-center {
      display: flex;
      justify-content: center;
    }

    .site-logo {
      font-size: 18px;
      font-weight: 700;
      letter-spacing: 0.05em;
      color: #fff;
      display: inline-flex;
      align-items: center;
      gap: 10px;
      text-decoration: none;
      white-space: nowrap;
    }

    .site-logo i {
      color: var(--primary);
      font-size: 20px;
    }

    .nav-cta {
      min-height: 36px;
      padding: 0 20px;
      font-size: 13px;
    }

    .nav-burger {
      display: none;
    }

    /* 移动端抽屉菜单 */
    .mobile-menu {
      display: none;
    }

    @media (max-width: 991px) {
      .nav-wrapper {
        grid-template-columns: 44px 1fr 44px;
        padding: 0 16px;
      }

      .nav-burger {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        background: rgba(255, 255, 255, 0.05);
        border: 1px solid rgba(255, 255, 255, 0.08);
        border-radius: 10px;
        color: #fff;
        font-size: 18px;
        cursor: pointer;
        transition: background var(--transition-base);
      }

      .nav-burger:hover {
        background: rgba(46, 230, 168, 0.12);
        border-color: rgba(46, 230, 168, 0.3);
      }

      .nav-center {
        grid-column: 2;
        justify-content: center;
      }

      .nav-left,
      .nav-right .nav-list,
      .nav-cta {
        display: none;
      }

      .nav-right {
        grid-column: 3;
      }

      .mobile-menu {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(7, 11, 20, 0.98);
        z-index: 999;
        padding: 32px 28px;
        flex-direction: column;
        gap: 6px;
        opacity: 0;
        visibility: hidden;
        transform: translateY(-12px);
        transition: all 0.35s ease;
        overflow-y: auto;
      }

      .mobile-menu.open {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
      }

      .mobile-menu a {
        color: rgba(255, 255, 255, 0.85);
        font-size: 18px;
        font-weight: 600;
        padding: 14px 6px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        display: flex;
        align-items: center;
        gap: 14px;
        text-decoration: none;
        transition: color var(--transition-base);
      }

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

      .mobile-menu a.active {
        color: var(--primary);
      }

      .mobile-menu a.btn-primary {
        margin-top: 20px;
        justify-content: center;
        color: #06121E;
        font-weight: 700;
        border-bottom: none;
      }
    }

    @media (max-width: 575px) {
      .nav-wrapper {
        grid-template-columns: 40px 1fr 40px;
      }
    }

    /* ====== Hero ====== */
    .hero {
      position: relative;
      min-height: 68vh;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 140px 0 80px;
      background-image:
        radial-gradient(ellipse at 18% 22%, rgba(46, 230, 168, 0.14), transparent 45%),
        radial-gradient(ellipse at 82% 78%, rgba(255, 179, 71, 0.06), transparent 40%),
        linear-gradient(rgba(7, 11, 20, 0.72), rgba(7, 11, 20, 0.94)),
        url('/assets/images/backpic/back-1.png');
      background-size: cover;
      background-position: center;
      text-align: center;
    }

    .hero-content {
      position: relative;
      z-index: 2;
    }

    .hero-tags {
      display: flex;
      justify-content: center;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 28px;
    }

    .hero-actions {
      margin-top: 30px;
    }

    .breadcrumb {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 10px;
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 22px;
    }

    .breadcrumb a {
      color: rgba(255, 255, 255, 0.55);
      text-decoration: none;
      transition: color var(--transition-base);
    }

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

    .breadcrumb .sep {
      color: rgba(255, 255, 255, 0.25);
    }

    .hero-title {
      font-size: 42px;
      font-weight: 700;
      letter-spacing: 0.02em;
      line-height: 1.3;
      margin-bottom: 16px;
      color: #fff;
    }

    .hero-title .highlight {
      color: var(--primary);
    }

    .hero-subtitle {
      font-size: 17px;
      color: rgba(255, 255, 255, 0.6);
      max-width: 560px;
      margin: 0 auto;
      line-height: 1.8;
    }

    @media (max-width: 575px) {
      .hero {
        min-height: 55vh;
        padding: 110px 16px 60px;
      }

      .hero-title {
        font-size: 28px;
        line-height: 1.35;
      }

      .hero-subtitle {
        font-size: 15px;
      }

      .hero-actions .btn-lg {
        width: 100%;
      }
    }

    /* ====== 引导区 ====== */
    .section-guide {
      padding: 56px 0 20px;
      text-align: center;
    }

    .section-label {
      display: inline-block;
      font-size: 12px;
      font-weight: 600;
      letter-spacing: 0.08em;
      color: var(--primary);
      background: rgba(46, 230, 168, 0.08);
      border: 1px solid rgba(46, 230, 168, 0.22);
      border-radius: var(--radius-pill);
      padding: 6px 18px;
      margin-bottom: 16px;
    }

    .section-title {
      font-size: 30px;
      font-weight: 700;
      color: #fff;
      margin: 0 0 14px;
      line-height: 1.4;
    }

    .section-desc {
      max-width: 620px;
      margin: 0 auto;
      color: var(--text-secondary);
      font-size: 15px;
      line-height: 1.8;
    }

    @media (max-width: 575px) {
      .section-guide {
        padding: 40px 0 10px;
      }

      .section-title {
        font-size: 24px;
      }
    }

    /* ====== 时间线 ====== */
    .timeline-section {
      padding: 0 0 60px;
    }

    .timeline-wrap {
      position: relative;
      max-width: 1000px;
      margin: 50px auto 0;
    }

    .timeline-line {
      position: absolute;
      left: 50%;
      top: 20px;
      bottom: 20px;
      width: 2px;
      transform: translateX(-50%);
      background: linear-gradient(180deg, transparent, rgba(46, 230, 168, 0.45) 8%, rgba(46, 230, 168, 0.45) 92%, transparent);
      border-radius: 2px;
    }

    .timeline-row {
      position: relative;
      display: flex;
      align-items: center;
      margin-bottom: 56px;
    }

    .timeline-row:last-child {
      margin-bottom: 0;
    }

    .timeline-dot {
      position: absolute;
      left: 50%;
      transform: translateX(-50%);
      width: 16px;
      height: 16px;
      border-radius: 50%;
      background: var(--primary);
      border: 3px solid rgba(7, 11, 20, 0.9);
      box-shadow: 0 0 16px rgba(46, 230, 168, 0.6), 0 0 40px rgba(46, 230, 168, 0.25);
      z-index: 2;
    }

    .timeline-panel {
      width: calc(50% - 56px);
      background: var(--glass-bg);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border: 1px solid var(--glass-border);
      border-top-color: var(--glass-highlight);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-card);
      overflow: hidden;
      transition: transform var(--transition-base), box-shadow var(--transition-base);
    }

    .timeline-panel:hover {
      transform: translateY(-4px);
      box-shadow: 0 12px 40px rgba(0, 0, 0, 0.55), 0 0 24px rgba(46, 230, 168, 0.08);
    }

    .timeline-row.left .timeline-panel {
      margin-right: auto;
    }

    .timeline-row.right .timeline-panel {
      margin-left: auto;
    }

    .timeline-media {
      border-radius: 15px 15px 0 0;
      overflow: hidden;
      aspect-ratio: 16 / 9;
      background: #111827;
      position: relative;
    }

    .timeline-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }

    .timeline-panel:hover .timeline-media img {
      transform: scale(1.03);
    }

    .timeline-media::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 55%, rgba(7, 11, 20, 0.3));
    }

    .timeline-body {
      padding: 22px 24px 26px;
    }

    .timeline-body h3 {
      font-size: 20px;
      font-weight: 700;
      color: #fff;
      margin: 0 0 10px;
    }

    .timeline-body p {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.8;
      margin: 0 0 16px;
    }

    .timeline-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      padding: 5px 14px;
      border-radius: var(--radius-pill);
      font-size: 12px;
      font-weight: 500;
      background: rgba(46, 230, 168, 0.08);
      color: var(--primary);
      border: 1px solid rgba(46, 230, 168, 0.22);
    }

    /* 时间线移动端 */
    @media (max-width: 767px) {
      .timeline-wrap {
        margin-top: 40px;
      }

      .timeline-line {
        left: 16px;
      }

      .timeline-row {
        flex-direction: column;
        align-items: flex-start;
        padding-left: 44px;
        margin-bottom: 40px;
      }

      .timeline-dot {
        left: 16px;
        transform: translateX(-50%);
        top: 20px;
      }

      .timeline-panel {
        width: 100%;
        margin: 0;
      }

      .timeline-row.left .timeline-panel,
      .timeline-row.right .timeline-panel {
        margin: 0;
      }
    }

    @media (max-width: 575px) {
      .timeline-body {
        padding: 18px 16px 20px;
      }

      .timeline-body h3 {
        font-size: 18px;
      }
    }

    /* ====== CTA ====== */
    .cta-section {
      padding: 60px 0 100px;
    }

    .cta-card {
      position: relative;
      background-image:
        linear-gradient(rgba(7, 11, 20, 0.72), rgba(7, 11, 20, 0.88)),
        url('/assets/images/backpic/back-2.webp');
      background-size: cover;
      background-position: center;
      border-radius: var(--radius-lg);
      border: 1px solid var(--glass-border);
      border-top-color: var(--glass-highlight);
      text-align: center;
      padding: 72px 32px;
      overflow: hidden;
      box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5);
      position: relative;
    }

    .cta-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(46, 230, 168, 0.35), transparent);
    }

    .cta-title {
      font-size: 28px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 12px;
    }

    .cta-subtitle {
      font-size: 15px;
      color: rgba(255, 255, 255, 0.65);
      margin-bottom: 34px;
    }

    .cta-card .btn-lg {
      min-width: 140px;
    }

    @media (max-width: 575px) {
      .cta-section {
        padding: 40px 0 60px;
      }

      .cta-card {
        padding: 48px 20px;
      }

      .cta-title {
        font-size: 24px;
      }

      .cta-subtitle {
        font-size: 14px;
      }
    }

    /* ====== 页脚 ====== */
    .site-footer {
      background: #05080F;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding: 64px 0 0;
      font-size: 13px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 48px;
    }

    .footer-brand .site-logo {
      margin-bottom: 14px;
      font-size: 20px;
    }

    .footer-brand p {
      color: rgba(255, 255, 255, 0.5);
      line-height: 1.8;
      margin-bottom: 20px;
      max-width: 320px;
    }

    .footer-social {
      display: flex;
      gap: 12px;
    }

    .footer-social a {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 38px;
      height: 38px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.08);
      color: rgba(255, 255, 255, 0.6);
      font-size: 15px;
      transition: all var(--transition-base);
    }

    .footer-social a:hover {
      background: rgba(46, 230, 168, 0.12);
      border-color: rgba(46, 230, 168, 0.3);
      color: var(--primary);
      transform: translateY(-2px);
    }

    .footer-title {
      font-size: 15px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 18px;
    }

    .footer-links {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-links a {
      color: rgba(255, 255, 255, 0.55);
      text-decoration: none;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      transition: color var(--transition-base);
    }

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

    .footer-links a i {
      font-size: 12px;
      color: var(--primary);
    }

    .footer-contact {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .footer-contact-item {
      display: flex;
      align-items: center;
      gap: 10px;
      color: rgba(255, 255, 255, 0.55);
    }

    .footer-contact-item i {
      color: var(--primary);
      font-size: 14px;
      width: 18px;
      text-align: center;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding: 22px 0;
      text-align: center;
      font-size: 12px;
      color: rgba(255, 255, 255, 0.35);
    }

    .site-footer .footer-bottom {
      max-width: 1200px;
      margin: 0 auto;
    }

    @media (max-width: 1023px) {
      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 36px;
      }
    }

    @media (max-width: 575px) {
      .site-footer {
        padding-top: 48px;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
      }

      .footer-bottom {
        padding: 18px 16px;
      }
    }