/* roulang page: index */
:root {
  --primary: #2E63F6;
  --primary-hover: #1D4ED8;
  --primary-active: #1E40AF;
  --accent: #0FC6C2;
  --accent-hover: #0EA5A5;
  --dark: #0B1220;
  --dark-2: #111A2E;
  --bg: #F4F6FB;
  --card: #FFFFFF;
  --text: #1A2233;
  --text-secondary: #5B6577;
  --text-muted: #98A2B3;
  --border: #E9EDF5;
  --success: #10B981;
  --warning: #F59E0B;
  --danger: #EF4444;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 8px rgba(16, 24, 40, 0.06);
  --shadow-md: 0 4px 16px rgba(16, 24, 40, 0.08);
  --shadow-lg: 0 12px 32px rgba(16, 24, 40, 0.10);
  --gradient-main: linear-gradient(135deg, #2E63F6, #0FC6C2);
  --transition: all 0.25s ease;
  --font-sans: -apple-system, 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}
img {
  max-width: 100%;
  display: block;
}
button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}
input, textarea {
  font-family: inherit;
}
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.section {
  padding: 80px 0;
}
.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 56px;
}
.section-head h2 {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text);
  margin-bottom: 14px;
}
.section-head p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
}
@media (max-width: 767px) {
  .section {
    padding: 48px 0;
  }
  .section-head {
    margin-bottom: 36px;
  }
  .section-head h2 {
    font-size: 24px;
  }
}
/* ===== Header / Nav ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 64px;
  z-index: 100;
  display: flex;
  align-items: center;
  border-bottom: 1px solid transparent;
  transition: background 0.3s, box-shadow 0.3s, border-color 0.3s;
}
.site-header.scrolled {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-color: rgba(0, 0, 0, 0.06);
  box-shadow: 0 4px 24px rgba(16, 24, 40, 0.06);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: var(--gradient-main);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 800;
  color: #fff;
  box-shadow: 0 4px 14px rgba(46, 99, 246, 0.35);
}
.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.01em;
  white-space: nowrap;
}
.site-header.scrolled .logo-text {
  color: var(--text);
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-link {
  display: inline-block;
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
  border-radius: 6px;
  position: relative;
  transition: color 0.2s;
}
.main-nav .nav-link::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 2px;
  width: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--accent);
  transform: translateX(-50%);
  transition: width 0.25s;
}
.main-nav .nav-link:hover::after,
.main-nav .nav-link.active::after {
  width: 60%;
}
.main-nav .nav-link.active,
.main-nav .nav-link:hover {
  color: #fff;
}
.site-header.scrolled .nav-link {
  color: var(--text-secondary);
}
.site-header.scrolled .nav-link.active,
.site-header.scrolled .nav-link:hover {
  color: var(--primary);
}
.main-nav .nav-link.active::after,
.main-nav .nav-link:hover::after {
  background: var(--primary);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 24px;
  border-radius: var(--radius-sm);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.4;
  transition: all 0.25s ease;
  cursor: pointer;
}
.btn-primary {
  background: var(--gradient-main);
  color: #fff;
  box-shadow: 0 4px 16px rgba(46, 99, 246, 0.25);
}
.btn-primary:hover {
  filter: brightness(1.08);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(46, 99, 246, 0.35);
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(46, 99, 246, 0.3);
}
.btn-primary:focus-visible {
  outline: 3px solid rgba(15, 198, 194, 0.4);
  outline-offset: 2px;
}
.btn-outline {
  background: transparent;
  color: #fff;
  border: 1.5px solid rgba(255, 255, 255, 0.5);
}
.btn-outline:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: #fff;
  transform: translateY(-2px);
}
.btn-outline:active {
  transform: translateY(0);
}
.btn-outline:focus-visible {
  outline: 3px solid rgba(255, 255, 255, 0.2);
  outline-offset: 2px;
}
.nav-cta {
  margin-left: 12px;
  padding: 9px 22px;
  font-size: 15px;
}
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  border-radius: 8px;
}
.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: 0.3s;
}
.site-header.scrolled .menu-toggle span {
  background: var(--text);
}
.menu-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.menu-toggle.open span:nth-child(2) {
  opacity: 0;
}
.menu-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}
/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 88vh;
  background: var(--dark);
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 120px 0 0;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  opacity: 0.28;
  z-index: 0;
}
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.12) 1px, transparent 1px);
  background-size: 26px 26px;
  opacity: 0.35;
  z-index: 1;
  pointer-events: none;
}
.hero-glow {
  position: absolute;
  top: -160px;
  right: -120px;
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, rgba(15, 198, 194, 0.15), transparent 65%);
  z-index: 1;
  pointer-events: none;
}
.hero-container {
  position: relative;
  z-index: 5;
  width: 100%;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
  padding-bottom: 96px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(15, 198, 194, 0.12);
  border: 1px solid rgba(15, 198, 194, 0.3);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  color: #7FDFDC;
  margin-bottom: 22px;
  letter-spacing: 0.02em;
}
.hero-badge i {
  font-size: 12px;
}
.hero h1 {
  font-size: 40px;
  font-weight: 700;
  line-height: 1.25;
  color: #fff;
  margin-bottom: 20px;
}
.hero-sub {
  font-size: 16px;
  line-height: 1.8;
  color: #94A3B8;
  max-width: 520px;
  margin-bottom: 32px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}
.btn-lg {
  padding: 14px 34px;
  font-size: 16px;
  border-radius: 10px;
}
.hero-visual {
  position: relative;
}
.hero-visual img {
  width: 100%;
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.1);
}
.hero-float {
  position: absolute;
  background: rgba(17, 26, 46, 0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 12px;
  padding: 14px 18px;
  color: #fff;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.35);
}
.hero-float-1 {
  bottom: 28px;
  left: -28px;
}
.hero-float-2 {
  top: 24px;
  right: -16px;
}
.hero-float .float-num {
  font-size: 24px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.2;
}
.hero-float .float-label {
  font-size: 12px;
  color: #CBD5E1;
  margin-top: 2px;
}
.hero-stats {
  position: relative;
  z-index: 5;
  background: rgba(17, 26, 46, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}
.hero-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.stat-item {
  padding: 28px 24px;
  text-align: center;
  border-right: 1px solid rgba(255, 255, 255, 0.1);
}
.stat-item:last-child {
  border-right: none;
}
.stat-num {
  font-size: 28px;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
}
.stat-num span {
  color: var(--accent);
}
.stat-label {
  font-size: 13px;
  color: #94A3B8;
  margin-top: 4px;
}
/* ===== Steps ===== */
.steps-section {
  background: var(--bg);
}
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  position: relative;
}
.steps-grid::before {
  content: '';
  position: absolute;
  top: 64px;
  left: 18%;
  right: 18%;
  height: 2px;
  background: repeating-linear-gradient(90deg, var(--accent) 0 6px, transparent 6px 14px);
  opacity: 0.4;
  z-index: 0;
}
.step-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 32px 28px;
  text-align: center;
  position: relative;
  z-index: 1;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: transform 0.3s, box-shadow 0.3s;
}
.step-card:hover {
  transform: translateY(4px);
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.08);
}
.step-num {
  font-size: 32px;
  font-weight: 800;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
  margin-bottom: 16px;
}
.step-card h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 10px;
}
.step-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}
/* ===== News ===== */
.news-section {
  background: var(--card);
}
.news-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}
.news-card {
  display: flex;
  gap: 20px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  transition: border-color 0.25s, box-shadow 0.25s;
}
.news-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}
.news-thumb {
  flex-shrink: 0;
  width: 120px;
  height: 90px;
  border-radius: 8px;
  overflow: hidden;
}
.news-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.news-body {
  flex: 1;
  min-width: 0;
}
.news-body h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.4;
  margin-bottom: 6px;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color 0.2s;
}
.news-card:hover .news-body h3 {
  color: var(--primary);
}
.news-body p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 8px;
}
.news-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.badge {
  display: inline-block;
  padding: 2px 10px;
  background: rgba(46, 99, 246, 0.08);
  color: var(--primary);
  font-size: 12px;
  font-weight: 500;
  border-radius: 999px;
}
.news-time {
  font-size: 12px;
  color: var(--text-muted);
}
.news-more {
  font-size: 12px;
  color: var(--primary);
  font-weight: 500;
  margin-left: auto;
}
.news-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
  font-size: 15px;
  background: var(--bg);
  border-radius: var(--radius);
  border: 1px dashed var(--border);
}
/* ===== Cases ===== */
.cases-section {
  background: var(--bg);
}
.cases-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.case-card {
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: border-color 0.25s, box-shadow 0.25s;
}
.case-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
}
.case-img {
  height: 180px;
  overflow: hidden;
}
.case-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s;
}
.case-card:hover .case-img img {
  transform: scale(1.03);
}
.case-body {
  padding: 20px 22px 22px;
}
.case-tag {
  display: inline-block;
  padding: 2px 10px;
  background: rgba(15, 198, 194, 0.1);
  color: #0A8F8C;
  font-size: 12px;
  font-weight: 600;
  border-radius: 999px;
  margin-bottom: 10px;
}
.case-body h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
  line-height: 1.45;
}
.case-body p {
  font-size: 14px;
  color: var(--text-secondary);
}
.case-body p strong {
  color: var(--primary);
  font-weight: 600;
}
.cases-stats {
  margin-top: 48px;
  background: var(--dark);
  border-radius: var(--radius);
  padding: 36px 32px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  position: relative;
  overflow: hidden;
}
.cases-stats::before {
  content: '';
  position: absolute;
  top: -80px;
  left: 50%;
  transform: translateX(-50%);
  width: 320px;
  height: 180px;
  background: radial-gradient(ellipse, rgba(15, 198, 194, 0.15), transparent 70%);
  pointer-events: none;
}
.cs-item {
  text-align: center;
  position: relative;
  z-index: 1;
}
.cs-num {
  font-size: 28px;
  font-weight: 800;
  color: #fff;
  line-height: 1.3;
}
.cs-num span {
  color: var(--accent);
}
.cs-label {
  font-size: 13px;
  color: #94A3B8;
  margin-top: 4px;
}
/* ===== FAQ ===== */
.faq-section {
  background: var(--card);
}
.faq-wrap {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 56px;
  align-items: start;
}
.faq-left {
  position: sticky;
  top: 100px;
}
.faq-left h2 {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 16px;
  color: var(--text);
}
.faq-left p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 28px;
}
.faq-list {
  border-top: 1px solid var(--border);
}
.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-q {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: 20px 4px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  text-align: left;
  transition: color 0.2s;
}
.faq-q i {
  font-size: 14px;
  color: var(--text-muted);
  transition: transform 0.25s;
  flex-shrink: 0;
}
.faq-item.active .faq-q {
  color: var(--primary);
}
.faq-item.active .faq-q i {
  transform: rotate(180deg);
  color: var(--primary);
}
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  padding: 0 4px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.75;
}
.faq-item.active .faq-a {
  max-height: 300px;
  padding: 0 4px 22px;
}
/* ===== CTA ===== */
.cta-section {
  background: var(--dark);
  position: relative;
  overflow: hidden;
  padding: 80px 0;
}
.cta-section::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(15, 198, 194, 0.1), transparent 65%);
  pointer-events: none;
}
.cta-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
}
.cta-inner h2 {
  font-size: 32px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 14px;
  line-height: 1.3;
}
.cta-inner p {
  font-size: 16px;
  color: #94A3B8;
  margin-bottom: 32px;
  line-height: 1.7;
}
.cta-btn {
  background: var(--gradient-main);
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  padding: 15px 40px;
  border-radius: 12px;
  box-shadow: 0 0 24px rgba(46, 99, 246, 0.35);
  transition: all 0.25s;
}
.cta-btn:hover {
  filter: brightness(1.08);
  transform: translateY(-2px);
  box-shadow: 0 0 36px rgba(46, 99, 246, 0.5);
}
.cta-btn:active {
  transform: translateY(0);
}
.cta-note {
  font-size: 13px !important;
  color: rgba(255, 255, 255, 0.4) !important;
  margin-top: 16px;
  margin-bottom: 0 !important;
}
/* ===== Footer ===== */
.site-footer {
  background: var(--dark);
  padding-top: 56px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
  gap: 40px;
  padding-bottom: 44px;
}
.footer-brand .logo-text {
  color: #fff;
}
.footer-brand p {
  font-size: 13px;
  color: #94A3B8;
  margin-top: 16px;
  line-height: 1.8;
  max-width: 280px;
}
.footer-col h4 {
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 20px;
}
.footer-col a {
  display: block;
  font-size: 14px;
  color: #94A3B8;
  padding: 5px 0;
  line-height: 1.6;
}
.footer-col a:hover {
  color: #fff;
}
.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: #94A3B8;
  padding: 5px 0;
  line-height: 1.6;
}
.footer-contact-item i {
  color: var(--accent);
  margin-top: 4px;
  font-size: 14px;
  flex-shrink: 0;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px 0;
}
.footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}
.footer-bottom p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}
.footer-bottom a {
  color: rgba(255, 255, 255, 0.4);
}
.footer-bottom a:hover {
  color: #fff;
}
/* ===== Responsive ===== */
@media (max-width: 1023px) {
  .hero-container {
    grid-template-columns: 1fr;
    gap: 40px;
    padding-bottom: 72px;
  }
  .hero h1 {
    font-size: 34px;
  }
  .hero-visual {
    max-width: 520px;
  }
  .hero-float-1 {
    left: 0;
  }
  .hero-float-2 {
    right: 0;
  }
  .hero-stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .stat-item {
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }
  .stat-item:nth-child(2) {
    border-right: none;
  }
  .stat-item:nth-child(3),
  .stat-item:nth-child(4) {
    border-bottom: none;
  }
  .steps-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .steps-grid::before {
    display: none;
  }
  .step-card {
    text-align: left;
    display: flex;
    gap: 20px;
    align-items: flex-start;
  }
  .step-num {
    margin-bottom: 0;
    flex-shrink: 0;
  }
  .news-grid {
    grid-template-columns: 1fr;
  }
  .cases-grid {
    grid-template-columns: 1fr;
  }
  .cases-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  .faq-wrap {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .faq-left {
    position: static;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 767px) {
  .container {
    padding: 0 18px;
  }
  .site-header {
    height: 58px;
  }
  .main-nav {
    position: fixed;
    top: 58px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 12px 18px 20px;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
    border-radius: 0 0 14px 14px;
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s, opacity 0.3s;
    gap: 2px;
  }
  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-link {
    color: var(--text-secondary);
    padding: 12px 12px;
    font-size: 16px;
  }
  .nav-link.active,
  .nav-link:hover {
    color: var(--primary);
    background: rgba(46, 99, 246, 0.04);
  }
  .main-nav .nav-link::after {
    display: none;
  }
  .nav-cta {
    margin-left: 0;
    padding: 8px 16px;
    font-size: 14px;
  }
  .menu-toggle {
    display: flex;
  }
  .hero {
    min-height: auto;
    padding: 100px 0 0;
  }
  .hero h1 {
    font-size: 28px;
  }
  .hero-sub {
    font-size: 15px;
  }
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .btn-lg {
    text-align: center;
  }
  .hero-float-1 {
    bottom: 16px;
    left: 8px;
    padding: 10px 14px;
  }
  .hero-float-2 {
    top: 14px;
    right: 6px;
    padding: 10px 14px;
  }
  .hero-float .float-num {
    font-size: 18px;
  }
  .hero-stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .stat-item {
    padding: 22px 12px;
  }
  .stat-num {
    font-size: 22px;
  }
  .news-card {
    flex-direction: column;
    gap: 12px;
  }
  .news-thumb {
    width: 100%;
    height: 180px;
  }
  .news-meta {
    gap: 8px;
  }
  .cases-stats {
    padding: 28px 18px;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
  .cta-section {
    padding: 56px 0;
  }
  .cta-inner h2 {
    font-size: 24px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-bottom-inner {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
}
@media (max-width: 520px) {
  .news-thumb {
    height: 160px;
  }
  .hero-stats-grid {
    grid-template-columns: 1fr 1fr;
  }
  .hero-float,
  .hero-float-1,
  .hero-float-2 {
    display: none;
  }
}

/* roulang page: category1 */
:root {
            --primary: #2E63F6;
            --primary-hover: #1D4ED8;
            --primary-active: #1E40AF;
            --accent: #0FC6C2;
            --accent-hover: #0EA5A5;
            --ink: #0B1220;
            --ink-2: #111A2E;
            --bg: #F4F6FB;
            --card: #FFFFFF;
            --input-bg: #F9FAFC;
            --text: #1A2233;
            --text-sub: #5B6577;
            --text-weak: #98A2B3;
            --border: #E9EDF5;
            --radius: 12px;
            --shadow-card: 0 2px 12px rgba(27, 41, 76, 0.06);
            --shadow-hover: 0 12px 32px rgba(37, 99, 235, 0.12);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            font-size: 15px;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: all 0.25s ease;
        }

        button {
            font-family: inherit;
            border: none;
            cursor: pointer;
            transition: all 0.25s ease;
        }

        input,
        textarea {
            font-family: inherit;
            transition: all 0.25s ease;
        }

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

        /* ===== 导航栏 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 999;
            height: 64px;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.06);
            transition: all 0.35s ease;
        }

        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.98);
            box-shadow: 0 4px 24px rgba(11, 18, 32, 0.08);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 34px;
            height: 34px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            background: linear-gradient(135deg, #2E63F6, #0FC6C2);
            color: #fff;
            font-size: 17px;
            font-weight: 800;
        }

        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: 0.01em;
            line-height: 1.2;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .main-nav .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-sub);
            padding: 6px 2px;
            position: relative;
            white-space: nowrap;
        }

        .main-nav .nav-link::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 100%;
            height: 2px;
            border-radius: 2px;
            background: linear-gradient(90deg, #2E63F6, #0FC6C2);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.3s ease;
        }

        .main-nav .nav-link:hover {
            color: var(--primary);
        }

        .main-nav .nav-link:hover::after,
        .main-nav .nav-link.active::after {
            transform: scaleX(1);
        }

        .main-nav .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }

        .nav-cta {
            flex-shrink: 0;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            height: 40px;
            padding: 0 22px;
            border-radius: 8px;
            background: linear-gradient(135deg, #2E63F6, #0FC6C2);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            transition: all 0.25s ease;
            box-shadow: 0 2px 8px rgba(46, 99, 246, 0.2);
        }

        .btn-primary:hover {
            filter: brightness(1.08);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(46, 99, 246, 0.3);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 6px rgba(46, 99, 246, 0.2);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 40px;
            padding: 0 22px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.6);
            color: #fff;
            font-size: 15px;
            font-weight: 500;
            background: transparent;
            transition: all 0.25s ease;
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: #fff;
        }

        .btn-outline:active {
            transform: scale(0.98);
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: transparent;
            padding: 8px;
            border-radius: 6px;
        }

        .hamburger span {
            width: 22px;
            height: 2px;
            border-radius: 2px;
            background: var(--text);
            transition: all 0.3s ease;
        }

        .hamburger.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .hamburger.open span:nth-child(2) {
            opacity: 0;
        }

        .hamburger.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        @media (max-width: 767px) {
            .main-nav {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                flex-direction: column;
                background: #fff;
                padding: 20px 24px 28px;
                gap: 18px;
                align-items: flex-start;
                box-shadow: 0 20px 40px rgba(11, 18, 32, 0.12);
                transform: translateY(-120%);
                transition: transform 0.35s ease;
                z-index: 998;
                border-bottom: 1px solid var(--border);
            }

            .main-nav.open {
                transform: translateY(0);
            }

            .main-nav .nav-link {
                font-size: 16px;
                width: 100%;
                padding: 8px 0;
            }

            .hamburger {
                display: flex;
            }

            .nav-cta .btn-primary {
                padding: 0 16px;
                font-size: 14px;
                height: 38px;
            }
        }

        /* ===== 页头 ===== */
        .page-hero {
            padding: 120px 0 56px;
            background: var(--bg);
            position: relative;
            overflow: hidden;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            top: 0;
            right: -10%;
            width: 480px;
            height: 480px;
            background: radial-gradient(circle, rgba(46, 99, 246, 0.08), transparent 65%);
            pointer-events: none;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 13px;
            color: var(--text-weak);
            margin-bottom: 16px;
        }

        .breadcrumb a {
            color: var(--text-sub);
        }

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

        .breadcrumb .sep {
            color: #c3cad6;
        }

        .page-hero h1 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 14px;
            letter-spacing: 0.01em;
        }

        .page-hero .lead {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-sub);
            max-width: 720px;
        }

        .page-hero .meta-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 20px;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            background: #EDF1FE;
            color: var(--primary);
            border: 1px solid #DCE3FC;
        }

        .badge i {
            font-size: 11px;
        }

        /* ===== 核心功能 ===== */
        .section {
            padding: 64px 0;
        }

        .section-alt {
            background: #fff;
        }

        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 48px;
        }

        .section-head .sub-title {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: rgba(46, 99, 246, 0.08);
            padding: 4px 16px;
            border-radius: 999px;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }

        .section-head h2 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 12px;
        }

        .section-head p {
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.75;
        }

        .feature-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px 20px;
            transition: all 0.35s ease;
        }

        .feature-card:hover {
            transform: translateY(-4px);
            border-color: var(--primary);
            box-shadow: var(--shadow-hover);
        }

        .feature-card .card-img {
            width: 100%;
            height: 120px;
            border-radius: 8px;
            object-fit: cover;
            margin-bottom: 18px;
            background: var(--input-bg);
        }

        .feature-card .icon-wrap {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: linear-gradient(135deg, rgba(46, 99, 246, 0.12), rgba(15, 198, 194, 0.12));
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            margin-bottom: 14px;
        }

        .feature-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .feature-card p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
        }

        /* ===== 功能亮点 ===== */
        .highlight-section {
            background: var(--ink);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }

        .highlight-section::before {
            content: "";
            position: absolute;
            top: -50%;
            left: 20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(15, 198, 194, 0.08), transparent 60%);
            pointer-events: none;
        }

        .highlight-section .container {
            position: relative;
            z-index: 2;
        }

        .highlight-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .highlight-img-wrap {
            border-radius: 16px;
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.12);
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
        }

        .highlight-img-wrap img {
            width: 100%;
            height: 320px;
            object-fit: cover;
        }

        .highlight-content h2 {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            line-height: 1.35;
            margin-bottom: 18px;
        }

        .highlight-content h2 span {
            color: var(--accent);
        }

        .highlight-list {
            list-style: none;
            padding: 0;
        }

        .highlight-list li {
            display: flex;
            gap: 14px;
            padding: 14px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

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

        .highlight-list .li-icon {
            flex-shrink: 0;
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: rgba(15, 198, 194, 0.15);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            margin-top: 2px;
        }

        .highlight-list .li-body h3 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 4px;
        }

        .highlight-list .li-body p {
            font-size: 14px;
            color: rgba(226, 232, 240, 0.7);
            line-height: 1.7;
        }

        .data-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 56px;
            padding-top: 40px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }

        .data-item {
            text-align: center;
        }

        .data-item .number {
            font-size: 32px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }

        .data-item .number i {
            color: var(--accent);
            font-style: normal;
            font-size: 24px;
            margin-left: 2px;
        }

        .data-item .label {
            font-size: 14px;
            color: rgba(148, 163, 184, 0.9);
            margin-top: 6px;
        }

        /* ===== 场景 ===== */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .scenario-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px 24px;
            text-align: center;
            transition: all 0.35s ease;
        }

        .scenario-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
        }

        .scenario-card .scenario-icon {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(46, 99, 246, 0.1), rgba(15, 198, 194, 0.1));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--primary);
            margin: 0 auto 18px;
        }

        .scenario-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 10px;
        }

        .scenario-card p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
        }

        /* ===== 流程 ===== */
        .process-section {
            background: #fff;
        }

        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .process-card {
            text-align: center;
            padding: 32px 20px;
            position: relative;
        }

        .process-card::after {
            content: "";
            position: absolute;
            top: 44px;
            right: -12px;
            width: 24px;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0.3;
        }

        .process-card:last-child::after {
            display: none;
        }

        .process-num {
            font-size: 32px;
            font-weight: 800;
            background: linear-gradient(135deg, #2E63F6, #0FC6C2);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
            margin-bottom: 12px;
        }

        .process-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
        }

        .process-card p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg);
        }

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

        .faq-item {
            border-bottom: 1px solid var(--border);
            background: #fff;
            border-radius: 0;
        }

        .faq-item:first-child {
            border-top: 1px solid var(--border);
            border-radius: 12px 12px 0 0;
            overflow: hidden;
        }

        .faq-item:last-child {
            border-radius: 0 0 12px 12px;
            overflow: hidden;
        }

        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 24px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            transition: all 0.2s ease;
            background: #fff;
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: #EFF3FA;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            color: var(--text-sub);
            transition: transform 0.3s ease, background 0.2s ease, color 0.2s ease;
            flex-shrink: 0;
        }

        .faq-item.active .faq-question {
            color: var(--primary);
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }

        .faq-answer {
            display: none;
            padding: 0 24px 22px;
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.8;
            max-width: 92%;
        }

        .faq-item.active .faq-answer {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--ink);
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 620px;
            height: 620px;
            background: radial-gradient(circle, rgba(15, 198, 194, 0.08), transparent 60%);
            pointer-events: none;
        }

        .cta-section .container {
            position: relative;
            z-index: 2;
        }

        .cta-section h2 {
            font-size: 32px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            line-height: 1.3;
        }

        .cta-section h2 span {
            color: var(--accent);
        }

        .cta-section .cta-desc {
            font-size: 16px;
            color: #94A3B8;
            max-width: 620px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }

        .cta-btn-wrap {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn-primary-lg {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 48px;
            padding: 0 36px;
            border-radius: 12px;
            background: linear-gradient(135deg, #2E63F6, #0FC6C2);
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            box-shadow: 0 0 24px rgba(46, 99, 246, 0.35);
            transition: all 0.25s ease;
        }

        .btn-primary-lg:hover {
            filter: brightness(1.08);
            transform: translateY(-2px);
            box-shadow: 0 0 32px rgba(46, 99, 246, 0.5);
        }

        .btn-primary-lg:active {
            transform: translateY(0);
            box-shadow: 0 0 16px rgba(46, 99, 246, 0.3);
        }

        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 48px;
            padding: 0 28px;
            border-radius: 12px;
            border: 1px solid rgba(255, 255, 255, 0.4);
            color: #fff;
            font-size: 16px;
            font-weight: 500;
            background: transparent;
            transition: all 0.25s ease;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: #fff;
            transform: translateY(-2px);
        }

        .cta-note {
            margin-top: 18px;
            font-size: 13px;
            color: rgba(148, 163, 184, 0.6);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--ink);
            color: #94A3B8;
            padding-top: 64px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 48px;
        }

        .footer-brand .logo-text {
            color: #fff;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            margin-top: 16px;
            color: rgba(148, 163, 184, 0.8);
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 20px;
        }

        .footer-col a {
            display: block;
            font-size: 14px;
            color: #94A3B8;
            margin-bottom: 12px;
            line-height: 1.6;
        }

        .footer-col a:hover {
            color: #fff;
        }

        .footer-contact-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: #94A3B8;
            margin-bottom: 12px;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
        }

        .footer-bottom-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }

        .footer-bottom p {
            font-size: 13px;
            color: rgba(148, 163, 184, 0.6);
        }

        .footer-bottom a {
            color: rgba(148, 163, 184, 0.6);
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        /* ===== 响应式 ===== */
        @media (min-width: 1024px) {
            .feature-grid {
                grid-template-columns: repeat(4, 1fr);
            }
        }

        @media (max-width: 1023px) and (min-width: 768px) {
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .scenario-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .process-card::after {
                display: none;
            }

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

            .data-strip {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px 24px;
            }

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

        @media (max-width: 767px) {
            .container {
                padding: 0 20px;
            }

            .section {
                padding: 40px 0;
            }

            .page-hero {
                padding: 100px 0 40px;
            }

            .page-hero h1 {
                font-size: 24px;
            }

            .section-head {
                margin-bottom: 32px;
            }

            .section-head h2 {
                font-size: 22px;
            }

            .feature-grid {
                grid-template-columns: 1fr;
            }

            .scenario-grid {
                grid-template-columns: 1fr;
            }

            .process-grid {
                grid-template-columns: 1fr;
            }

            .process-card {
                padding: 24px 16px;
            }

            .process-card::after {
                display: none;
            }

            .highlight-section {
                padding: 48px 0;
            }

            .highlight-content h2 {
                font-size: 22px;
            }

            .highlight-img-wrap img {
                height: 200px;
            }

            .data-strip {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px 16px;
                margin-top: 40px;
                padding-top: 32px;
            }

            .data-item .number {
                font-size: 24px;
            }

            .data-item .label {
                font-size: 12px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px 16px;
                padding-bottom: 32px;
            }

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

            .footer-bottom-inner {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }

            .cta-section {
                padding: 48px 0;
            }

            .cta-section h2 {
                font-size: 24px;
            }

            .cta-btn-wrap {
                flex-direction: column;
                align-items: center;
            }
        }

        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 21px;
            }

            .page-hero .lead {
                font-size: 14px;
            }

            .data-strip {
                grid-template-columns: 1fr 1fr;
            }

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

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

            .footer-col a,
            .footer-contact-item {
                font-size: 13px;
            }

            .footer-bottom p {
                font-size: 12px;
            }
        }

/* roulang page: article */
:root {
            --primary: #2E63F6;
            --primary-hover: #1D4ED8;
            --primary-active: #1E40AF;
            --accent: #0FC6C2;
            --accent-hover: #0EA5A5;
            --ink: #0B1220;
            --ink-2: #111A2E;
            --bg: #F4F6FB;
            --card: #FFFFFF;
            --text-main: #1A2233;
            --text-sub: #5B6577;
            --text-muted: #98A2B3;
            --border: #E9EDF5;
            --radius: 12px;
            --radius-sm: 8px;
            --shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.04);
            --shadow-md: 0 4px 16px rgba(16, 24, 40, 0.08);
            --shadow-lg: 0 12px 32px rgba(37, 99, 235, 0.12);
            --font-family: -apple-system, 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-family);
            background: var(--bg);
            color: var(--text-main);
            line-height: 1.75;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s;
        }
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

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

        /* ===== Header ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            height: 64px;
            background: transparent;
            transition: all 0.3s;
        }
        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
        }
        .site-header.scrolled .logo-text,
        .site-header.scrolled .main-nav .nav-link,
        .site-header.scrolled .header-phone {
            color: var(--text-main);
        }
        .site-header.scrolled .nav-link::after {
            background: var(--primary);
        }
        .site-header.scrolled .nav-link.active {
            color: var(--primary);
        }
        .header-inner {
            height: 64px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, #2E63F6, #0FC6C2);
            color: #fff;
            font-size: 20px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(46, 99, 246, 0.35);
        }
        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            transition: color 0.3s;
            white-space: nowrap;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .nav-link {
            position: relative;
            font-size: 15px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.85);
            padding: 6px 0;
            transition: color 0.25s;
        }
        .nav-link::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 100%;
            height: 2px;
            border-radius: 2px;
            background: #FFFFFF;
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.25s;
        }
        .nav-link:hover {
            color: var(--accent);
        }
        .nav-link.active::after {
            transform: scaleX(1);
        }
        .nav-link.active {
            color: var(--accent);
        }
        .header-right {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-shrink: 0;
        }
        .header-phone {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 6px;
            transition: color 0.3s;
        }
        .header-cta {
            padding: 10px 24px;
            border-radius: 8px;
            background: linear-gradient(135deg, #2E63F6, #0FC6C2);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            border: none;
            transition: all 0.25s;
        }
        .header-cta:hover {
            filter: brightness(1.08);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(46, 99, 246, 0.35);
        }
        .header-cta:active {
            transform: translateY(1px);
            filter: brightness(0.96);
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 24px;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            transition: color 0.3s;
        }
        .mobile-toggle:hover {
            color: var(--accent);
        }

        /* ===== Article Header ===== */
        .article-header {
            background: linear-gradient(135deg, #0B1220 0%, #111A2E 60%, #16233f 100%);
            padding: 140px 0 56px;
            position: relative;
            overflow: hidden;
        }
        .article-header::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 600px;
            height: 420px;
            background: radial-gradient(circle at center, rgba(16, 198, 194, 0.12), transparent 70%);
            pointer-events: none;
        }
        .article-header::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(46, 99, 246, 0.5), rgba(16, 198, 194, 0.5), transparent);
        }
        .breadcrumb {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, 0.6);
            transition: color 0.2s;
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb .sep {
            color: rgba(255, 255, 255, 0.3);
            margin: 0 4px;
        }
        .article-title-wrap {
            max-width: 840px;
        }
        .category-badge {
            display: inline-block;
            padding: 5px 16px;
            border-radius: 999px;
            background: rgba(46, 99, 246, 0.2);
            border: 1px solid rgba(46, 99, 246, 0.5);
            color: #7da4ff;
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 16px;
        }
        .article-header h1 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.35;
            color: #FFFFFF;
            letter-spacing: -0.01em;
        }
        .article-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
            margin-top: 22px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
        }
        .meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .meta-item i {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }
        .share-buttons {
            display: flex;
            gap: 10px;
            margin-left: auto;
        }
        .share-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: rgba(255, 255, 255, 0.8);
            font-size: 14px;
            transition: all 0.25s;
            background: transparent;
        }
        .share-btn:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: var(--accent);
            color: var(--accent);
            transform: translateY(-2px);
        }
        .share-btn:active {
            transform: translateY(0);
            background: rgba(255, 255, 255, 0.25);
        }

        /* ===== Article Body ===== */
        .article-wrapper {
            padding: 48px 0 64px;
        }
        .article-card {
            background: var(--card);
            border-radius: 16px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-md);
            padding: 48px;
        }
        .article-content {
            max-width: 780px;
            margin: 0 auto;
            font-size: 16px;
            line-height: 1.9;
            color: #2a3244;
        }
        .article-content p {
            margin-bottom: 24px;
            font-size: 16px;
            line-height: 1.9;
        }
        .article-content h2 {
            font-size: 26px;
            font-weight: 700;
            margin: 44px 0 16px;
            color: #0B1220;
            line-height: 1.4;
        }
        .article-content h3 {
            font-size: 20px;
            font-weight: 600;
            margin: 32px 0 12px;
            color: #0B1220;
            line-height: 1.5;
        }
        .article-content img {
            border-radius: 8px;
            margin: 32px 0;
            box-shadow: 0 4px 16px rgba(16, 24, 40, 0.08);
        }
        .article-content figure {
            margin: 32px 0;
        }
        .article-content figure img {
            margin: 0 0 8px;
        }
        .article-content figcaption {
            font-size: 13px;
            color: var(--text-muted);
            text-align: center;
            margin-top: 8px;
        }
        .article-content blockquote {
            border-left: 3px solid var(--primary);
            background: #F4F6FB;
            padding: 16px 24px;
            margin: 24px 0;
            border-radius: 0 8px 8px 0;
            color: var(--text-sub);
            font-size: 15px;
            font-style: normal;
        }
        .article-content blockquote p {
            margin-bottom: 8px;
        }
        .article-content blockquote p:last-child {
            margin-bottom: 0;
        }
        .article-content code {
            background: #0B1220;
            color: #7DD3FC;
            padding: 3px 10px;
            border-radius: 4px;
            font-size: 13px;
            font-family: 'SFMono-Regular', Consolas, monospace;
        }
        .article-content pre {
            background: #0B1220;
            color: #E2E8F0;
            padding: 20px 24px;
            border-radius: 8px;
            overflow-x: auto;
            margin: 24px 0;
            font-size: 14px;
            line-height: 1.7;
        }
        .article-content pre code {
            background: transparent;
            color: inherit;
            padding: 0;
        }
        .article-content ul,
        .article-content ol {
            margin: 0 0 24px 24px;
            line-height: 1.9;
        }
        .article-content li {
            margin-bottom: 8px;
        }
        .article-content a {
            color: var(--primary);
            border-bottom: 1px solid rgba(46, 99, 246, 0.3);
            transition: border-color 0.2s;
        }
        .article-content a:hover {
            border-color: var(--primary);
            color: var(--primary-hover);
        }
        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
        }
        .article-content table th,
        .article-content table td {
            border: 1px solid var(--border);
            padding: 10px 16px;
            text-align: left;
        }
        .article-content table th {
            background: #F4F6FB;
            font-weight: 600;
        }

        /* Tags */
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
        }
        .tag {
            display: inline-flex;
            align-items: center;
            padding: 6px 16px;
            border-radius: 999px;
            background: #F4F6FB;
            border: 1px solid var(--border);
            font-size: 13px;
            color: var(--text-sub);
            transition: all 0.25s;
        }
        .tag:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(46, 99, 246, 0.05);
        }
        .tag:active {
            transform: scale(0.97);
        }

        /* ===== Related ===== */
        .related-section {
            padding: 64px 0 0;
        }
        .section-title-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 8px;
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: #0B1220;
            letter-spacing: -0.01em;
            line-height: 1.3;
        }
        .section-subtitle {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 4px;
        }
        .section-line {
            width: 48px;
            height: 3px;
            border-radius: 3px;
            background: linear-gradient(90deg, #2E63F6, #0FC6C2);
            margin-top: 8px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 32px;
        }
        .related-card {
            background: var(--card);
            border-radius: 12px;
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all 0.3s;
            display: block;
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 32px rgba(37, 99, 235, 0.12);
            border-color: var(--primary);
        }
        .related-card:active {
            transform: translateY(-1px);
        }
        .related-card .cover {
            aspect-ratio: 16/9;
            overflow: hidden;
        }
        .related-card .cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s;
        }
        .related-card:hover .cover img {
            transform: scale(1.05);
        }
        .related-card .info {
            padding: 20px;
        }
        .related-card .info h4 {
            font-size: 16px;
            font-weight: 600;
            color: #0B1220;
            line-height: 1.5;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .info .date {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        /* ===== Back Button ===== */
        .back-btn-wrap {
            margin-top: 32px;
            display: flex;
            justify-content: center;
        }
        .back-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 8px;
            border: 1px solid var(--border);
            background: var(--card);
            color: var(--text-sub);
            font-size: 14px;
            font-weight: 500;
            transition: all 0.25s;
        }
        .back-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
            box-shadow: 0 4px 12px rgba(46, 99, 246, 0.1);
            transform: translateY(-2px);
        }
        .back-btn:active {
            transform: translateY(0);
            background: #F4F6FB;
        }

        /* ===== Prev / Next ===== */
        .prevnext-wrapper {
            margin-top: 24px;
            display: flex;
            gap: 24px;
        }
        .prevnext-item {
            flex: 1;
            padding: 20px 24px;
            border-radius: 12px;
            background: var(--card);
            border: 1px solid var(--border);
            transition: all 0.25s;
            display: block;
        }
        .prevnext-item:hover {
            background: rgba(46, 99, 246, 0.04);
            border-color: var(--primary);
            box-shadow: 0 4px 16px rgba(46, 99, 246, 0.08);
        }
        .prevnext-item:active {
            transform: scale(0.99);
        }
        .prevnext-item .label {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 8px;
        }
        .prevnext-item .label i {
            font-size: 12px;
        }
        .prevnext-item .title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .prevnext-item.next .label {
            justify-content: flex-end;
        }
        .prevnext-item.next {
            text-align: right;
        }

        /* ===== Not Found ===== */
        .not-found {
            text-align: center;
            padding: 80px 0;
        }
        .not-found .icon {
            font-size: 56px;
            color: var(--border);
            margin-bottom: 24px;
        }
        .not-found h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 16px;
        }
        .not-found p {
            color: var(--text-sub);
            font-size: 15px;
            margin-bottom: 24px;
        }
        .not-found a {
            display: inline-block;
            padding: 12px 28px;
            border-radius: 8px;
            background: var(--primary);
            color: #fff;
            font-size: 14px;
            font-weight: 500;
            transition: all 0.25s;
        }
        .not-found a:hover {
            background: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(46, 99, 246, 0.3);
        }
        .not-found a:active {
            transform: translateY(0);
            background: var(--primary-active);
        }

        /* ===== CTA ===== */
        .cta-section {
            background: #0B1220;
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: 50%;
            width: 600px;
            height: 600px;
            transform: translateX(-50%);
            background: radial-gradient(circle, rgba(16, 198, 194, 0.08), transparent 70%);
            pointer-events: none;
        }
        .cta-inner {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
        }
        .cta-title {
            font-size: 32px;
            font-weight: 700;
            color: #fff;
            line-height: 1.3;
            letter-spacing: -0.01em;
        }
        .cta-subtitle {
            font-size: 16px;
            color: #94A3B8;
            margin: 12px 0 40px;
            line-height: 1.7;
        }
        .cta-btn {
            display: inline-block;
            padding: 14px 48px;
            border-radius: 12px;
            background: linear-gradient(135deg, #2E63F6, #0FC6C2);
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            text-align: center;
            box-shadow: 0 0 24px rgba(46, 99, 246, 0.35);
            transition: all 0.3s;
        }
        .cta-btn:hover {
            filter: brightness(1.08);
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(46, 99, 246, 0.5);
        }
        .cta-btn:active {
            transform: translateY(1px);
            box-shadow: 0 2px 12px rgba(46, 99, 246, 0.3);
            filter: brightness(0.96);
        }
        .cta-note {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
            margin-top: 16px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #0B1220;
            padding-top: 64px;
            color: #94A3B8;
            font-size: 14px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 48px;
        }
        .footer-brand .logo-text {
            color: #fff !important;
            font-size: 20px;
        }
        .footer-brand p {
            margin-top: 20px;
            line-height: 1.8;
            font-size: 14px;
            color: #94A3B8;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 20px;
        }
        .footer-col a {
            display: block;
            color: #94A3B8;
            margin-bottom: 12px;
            font-size: 14px;
            transition: color 0.2s;
        }
        .footer-col a:hover {
            color: #fff;
        }
        .footer-contact-item {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
            font-size: 14px;
            color: #94A3B8;
        }
        .footer-contact-item i {
            width: 18px;
            color: var(--accent);
            font-size: 13px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 24px 0;
        }
        .footer-bottom-inner {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom-inner a {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom-inner a:hover {
            color: var(--accent);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1023px) {
            .main-nav {
                gap: 18px;
            }
            .nav-link {
                font-size: 14px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 40px;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .header-phone {
                display: none;
            }
            .article-card {
                padding: 36px 28px;
            }
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
            .mobile-toggle {
                display: flex;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: #0B1220;
                flex-direction: column;
                padding: 24px 24px 32px;
                gap: 8px;
                align-items: stretch;
                border-bottom: 1px solid rgba(255, 255, 255, 0.08);
                box-shadow: 0 24px 48px rgba(0, 0, 0, 0.3);
            }
            .main-nav.open {
                display: flex;
            }
            .site-header.scrolled .main-nav {
                background: rgba(255, 255, 255, 0.98);
                border-bottom-color: rgba(0, 0, 0, 0.06);
            }
            .main-nav .nav-link {
                color: rgba(255, 255, 255, 0.9);
                padding: 12px 0;
                font-size: 16px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            }
            .site-header.scrolled .main-nav .nav-link {
                color: var(--text-main);
                border-bottom-color: rgba(0, 0, 0, 0.06);
            }
            .main-nav .nav-link::after {
                display: none;
            }
            .main-nav .nav-link.active {
                color: var(--accent);
            }
            .site-header.scrolled .main-nav .nav-link.active {
                color: var(--primary);
            }
            .header-cta {
                padding: 8px 16px;
                font-size: 14px;
            }
            .logo-text {
                font-size: 17px;
            }
            .article-header {
                padding: 120px 0 48px;
            }
            .article-header h1 {
                font-size: 22px;
            }
            .article-card {
                padding: 20px 16px;
                border-radius: 12px;
            }
            .article-content p {
                font-size: 15px;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .prevnext-wrapper {
                flex-direction: column;
                gap: 12px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .cta-title {
                font-size: 24px;
            }
            .share-buttons {
                margin-left: 0;
                width: 100%;
                justify-content: flex-start;
            }
            .article-meta {
                gap: 14px;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .header-right .header-phone {
                display: none;
            }
            .section-title {
                font-size: 24px;
            }
            .article-title-wrap h1 {
                font-size: 20px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #2E63F6;
            --primary-hover: #1D4ED8;
            --primary-active: #1E40AF;
            --accent: #0FC6C2;
            --accent-hover: #0EA5A5;
            --dark-bg: #0B1220;
            --dark-bg-2: #111A2E;
            --page-bg: #F4F6FB;
            --card-bg: #FFFFFF;
            --input-bg: #F9FAFC;
            --text-main: #1A2233;
            --text-sub: #5B6577;
            --text-weak: #98A2B3;
            --border-color: #E9EDF5;
            --radius: 12px;
            --shadow: 0 4px 20px rgba(37, 99, 235, 0.06);
        }

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

        body {
            font-family: -apple-system, 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            background: var(--page-bg);
            color: var(--text-main);
            line-height: 1.75;
            font-size: 15px;
        }

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

        a {
            text-decoration: none;
            color: inherit;
        }

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

        button {
            font-family: inherit;
        }

        /* 导航栏 */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            height: 64px;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.06);
            transition: box-shadow 0.3s;
        }

        .header-inner {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            height: 64px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            font-weight: 700;
            font-size: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            white-space: nowrap;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
        }

        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main);
            position: relative;
            padding: 6px 0;
            transition: color 0.2s;
        }

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

        .nav-link:hover::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            height: 2px;
            border-radius: 2px;
            background: var(--primary);
        }

        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            height: 2px;
            border-radius: 2px;
            background: var(--primary);
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 40px;
            padding: 0 20px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            transition: all 0.3s;
            border: none;
            cursor: pointer;
        }

        .header-cta:hover {
            filter: brightness(1.08);
            transform: translateY(-2px);
        }

        .header-cta:active {
            transform: translateY(1px);
        }

        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--text-main);
            cursor: pointer;
            padding: 8px;
        }

        /* 移动端菜单 */
        .mobile-menu {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            background: #fff;
            border-bottom: 1px solid var(--border-color);
            padding: 16px 24px;
            z-index: 99;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
        }

        .mobile-menu.open {
            display: block;
        }

        .mobile-menu .nav-link {
            display: block;
            padding: 12px 0;
            border-bottom: 1px solid #f0f2f5;
        }

        .mobile-menu .nav-link:last-child {
            border-bottom: none;
        }

        .mobile-header-cta {
            display: none;
            align-items: center;
            justify-content: center;
            width: 100%;
            height: 44px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin-top: 12px;
            border: none;
            cursor: pointer;
            transition: filter 0.2s;
        }

        .mobile-header-cta:hover {
            filter: brightness(1.08);
        }

        /* 面包屑 */
        .breadcrumb {
            font-size: 13px;
            color: var(--text-weak);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-weak);
            transition: color 0.2s;
        }

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

        /* 页面头部 */
        .page-header {
            padding: 120px 0 56px;
            background: linear-gradient(180deg, #EEF2FB 0%, var(--page-bg) 100%);
            position: relative;
            overflow: hidden;
        }

        .page-header::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 500px;
            height: 300px;
            background: radial-gradient(circle, rgba(46, 99, 246, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

        .page-header::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 300px;
            height: 200px;
            background: radial-gradient(circle, rgba(15, 198, 194, 0.06) 0%, transparent 70%);
            pointer-events: none;
        }

        .page-header h1 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-main);
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }

        .page-header .lead {
            font-size: 16px;
            color: var(--text-sub);
            max-width: 640px;
            line-height: 1.7;
            position: relative;
            z-index: 1;
        }

        /* 通用板块 */
        .section {
            padding: 64px 0;
        }

        .section-alt {
            background: #fff;
        }

        .section-head {
            margin-bottom: 40px;
        }

        .section-head h2 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .section-head p {
            font-size: 15px;
            color: var(--text-sub);
            max-width: 560px;
        }

        /* 服务卡片 */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
        }

        .service-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 28px 24px;
            transition: all 0.3s;
            position: relative;
            overflow: hidden;
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: opacity 0.3s;
        }

        .service-card:hover {
            border-color: var(--primary);
            box-shadow: 0 8px 24px rgba(37, 99, 235, 0.08);
            transform: translateY(-4px);
        }

        .service-card:hover::before {
            opacity: 1;
        }

        .service-card .icon-wrap {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(46, 99, 246, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary);
            margin-bottom: 16px;
            transition: background 0.3s, color 0.3s;
        }

        .service-card:hover .icon-wrap {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
        }

        .service-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 10px;
        }

        .service-card p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.6;
        }

        /* 场景展示 */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .scenario-item {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all 0.3s;
        }

        .scenario-item:hover {
            box-shadow: 0 8px 24px rgba(37, 99, 235, 0.08);
            border-color: var(--primary);
        }

        .scenario-item .img-wrap {
            overflow: hidden;
            height: 200px;
        }

        .scenario-item .img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s;
        }

        .scenario-item:hover .img-wrap img {
            transform: scale(1.04);
        }

        .scenario-item .content {
            padding: 24px;
        }

        .scenario-item .content h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-main);
        }

        .scenario-item .content p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.6;
        }

        /* 流程 */
        .grid-bg {
            background-image: linear-gradient(rgba(46, 99, 246, 0.04) 1px, transparent 1px),
                linear-gradient(90deg, rgba(46, 99, 246, 0.04) 1px, transparent 1px);
            background-size: 24px 24px;
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
        }

        .step-item {
            background: var(--page-bg);
            border-radius: var(--radius);
            padding: 28px;
            text-align: center;
            transition: all 0.3s;
            border: 1px solid transparent;
        }

        .step-item:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(37, 99, 235, 0.08);
            border-color: var(--border-color);
        }

        .step-num {
            font-size: 32px;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 12px;
        }

        .step-item h3 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text-main);
        }

        .step-item p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.6;
        }

        /* 深色数据条 */
        .dark-stats {
            background: var(--dark-bg);
            padding: 56px 0;
            position: relative;
            overflow: hidden;
        }

        .dark-stats::before {
            content: '';
            position: absolute;
            top: -50%;
            left: 30%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(15, 198, 194, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
        }

        .stats-grid .stat-num {
            font-size: 28px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 4px;
        }

        .stats-grid .stat-num span {
            color: var(--accent);
        }

        .stats-grid .stat-label {
            font-size: 14px;
            color: #94A3B8;
        }

        /* FAQ */
        .faq-grid {
            display: grid;
            grid-template-columns: 280px 1fr;
            gap: 48px;
        }

        .faq-left h2 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 12px;
            color: var(--text-main);
        }

        .faq-left p {
            color: var(--text-sub);
            font-size: 15px;
            margin-bottom: 24px;
        }

        .faq-list {
            border-top: 1px solid var(--border-color);
        }

        .faq-item {
            border-bottom: 1px solid var(--border-color);
        }

        .faq-q {
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            transition: color 0.2s;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
        }

        .faq-q:hover {
            color: var(--primary);
        }

        .faq-q.open {
            color: var(--primary);
        }

        .faq-q .fa-chevron-down {
            transition: transform 0.2s;
            font-size: 14px;
            color: var(--text-weak);
            flex-shrink: 0;
            margin-left: 12px;
        }

        .faq-q.open .fa-chevron-down {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-a {
            display: none;
            padding: 0 0 20px;
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
        }

        .faq-a.open {
            display: block;
        }

        /* CTA */
        .cta-section {
            background: var(--dark-bg);
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: 50%;
            transform: translateX(-50%);
            width: 600px;
            height: 400px;
            background: radial-gradient(circle, rgba(15, 198, 194, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: 32px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }

        .cta-section p {
            font-size: 16px;
            color: #94A3B8;
            margin-bottom: 32px;
            position: relative;
            z-index: 1;
        }

        .cta-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 48px;
            padding: 0 36px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all 0.3s;
            box-shadow: 0 0 24px rgba(46, 99, 246, 0.35);
            position: relative;
            z-index: 1;
        }

        .cta-btn:hover {
            filter: brightness(1.08);
            transform: translateY(-2px);
        }

        .cta-btn:active {
            transform: translateY(1px);
        }

        .cta-note {
            margin-top: 16px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        /* 页脚 */
        .site-footer {
            background: var(--dark-bg);
            padding-top: 64px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 48px;
        }

        .footer-brand .logo .logo-text {
            color: #fff;
        }

        .footer-brand p {
            margin-top: 16px;
            font-size: 14px;
            color: #94A3B8;
            line-height: 1.7;
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 20px;
        }

        .footer-col a {
            display: block;
            font-size: 14px;
            color: #94A3B8;
            margin-bottom: 12px;
            transition: color 0.2s;
        }

        .footer-col a:hover {
            color: #fff;
        }

        .footer-contact-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: #94A3B8;
            margin-bottom: 12px;
        }

        .footer-contact-item i {
            color: var(--accent);
            width: 16px;
            flex-shrink: 0;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 24px 0;
        }

        .footer-bottom-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }

        .footer-bottom-inner p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-bottom-inner a {
            color: rgba(255, 255, 255, 0.6);
            transition: color 0.2s;
        }

        .footer-bottom-inner a:hover {
            color: #fff;
        }

        /* 响应式断点 */
        @media (max-width: 1024px) {
            .service-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }

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

        @media (max-width: 767px) {
            .main-nav {
                display: none;
            }

            .hamburger {
                display: block;
            }

            .header-cta {
                display: none;
            }

            .mobile-header-cta {
                display: flex;
            }

            .page-header {
                padding: 96px 0 40px;
            }

            .page-header h1 {
                font-size: 24px;
            }

            .section {
                padding: 40px 0;
            }

            .section-head h2 {
                font-size: 24px;
            }

            .service-grid {
                grid-template-columns: 1fr;
            }

            .scenario-grid {
                grid-template-columns: 1fr;
            }

            .steps-grid {
                grid-template-columns: 1fr;
            }

            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }

            .faq-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

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

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

            .cta-section {
                padding: 56px 0;
            }

            .cta-section h2 {
                font-size: 24px;
            }
        }

        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }

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

            .footer-brand {
                grid-column: auto;
            }

            .container {
                padding: 0 16px;
            }

            .header-inner {
                padding: 0 16px;
            }
        }

/* roulang page: category3 */
:root {
      --primary: #2E63F6;
      --primary-hover: #1D4ED8;
      --primary-active: #1E40AF;
      --accent: #0FC6C2;
      --accent-hover: #0EA5A5;
      --ink: #0B1220;
      --ink-2: #111A2E;
      --page: #F4F6FB;
      --card: #FFFFFF;
      --input-bg: #F9FAFC;
      --text: #1A2233;
      --text-sub: #5B6577;
      --text-weak: #98A2B3;
      --border: #E9EDF5;
      --success: #10B981;
      --warning: #F59E0B;
      --danger: #EF4444;
      --radius: 12px;
      --radius-sm: 8px;
      --shadow: 0 4px 16px rgba(15, 23, 42, 0.06);
      --shadow-lg: 0 8px 24px rgba(37, 99, 235, 0.08);
      --section-space: 80px;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: -apple-system, 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
      background: var(--page);
      color: var(--text);
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }

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

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

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

    /* ===== Header ===== */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      height: 64px;
      z-index: 100;
      display: flex;
      align-items: center;
      transition: background .3s, box-shadow .3s, border-color .3s;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    }

    .site-header.scrolled {
      background: rgba(255, 255, 255, 0.95);
      box-shadow: 0 4px 20px rgba(15, 23, 42, 0.08);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: 100%;
      gap: 24px;
    }

    .logo {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }

    .logo-icon {
      width: 38px;
      height: 38px;
      border-radius: 10px;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 800;
      font-size: 18px;
      box-shadow: 0 4px 12px rgba(46, 99, 246, 0.28);
    }

    .logo-text {
      font-size: 20px;
      font-weight: 700;
      color: var(--text);
      letter-spacing: 0.2px;
    }

    .main-nav {
      display: flex;
      gap: 28px;
      align-items: center;
    }

    .nav-link {
      color: var(--text-sub);
      font-size: 15px;
      font-weight: 500;
      position: relative;
      padding: 8px 0;
      transition: color .2s;
    }

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

    .nav-link:hover::after,
    .nav-link.active::after {
      content: '';
      position: absolute;
      left: 0;
      bottom: 0;
      width: 100%;
      height: 2px;
      border-radius: 2px;
      background: linear-gradient(90deg, var(--primary), var(--accent));
    }

    .nav-link.active {
      color: var(--primary);
      font-weight: 600;
    }

    .header-cta {
      flex-shrink: 0;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      border: none;
      cursor: pointer;
      font-weight: 600;
      border-radius: var(--radius-sm);
      transition: all .2s;
      font-family: inherit;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--primary), var(--accent));
      color: #fff;
      padding: 10px 22px;
      font-size: 15px;
    }

    .btn-primary:hover {
      filter: brightness(1.08);
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(46, 99, 246, 0.28);
    }

    .btn-primary:active {
      transform: translateY(0);
      filter: brightness(0.96);
      box-shadow: 0 2px 8px rgba(46, 99, 246, 0.2);
    }

    .btn-outline {
      background: transparent;
      border: 1px solid #D6DCE8;
      color: var(--text);
      padding: 10px 22px;
      font-size: 15px;
    }

    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: rgba(46, 99, 246, 0.04);
    }

    .btn-outline:active {
      background: rgba(46, 99, 246, 0.1);
    }

    .btn-lg {
      padding: 14px 32px;
      font-size: 16px;
      border-radius: var(--radius);
    }

    .btn-sm {
      padding: 8px 16px;
      font-size: 14px;
      border-radius: 6px;
    }

    .menu-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      background: transparent;
      border: none;
      cursor: pointer;
      padding: 8px;
    }

    .menu-toggle span {
      width: 22px;
      height: 2px;
      background: var(--text);
      border-radius: 2px;
      transition: all .3s;
    }

    /* ===== Page Hero ===== */
    .page-hero {
      position: relative;
      padding: 120px 0 56px;
      background: var(--page);
      overflow: hidden;
    }

    .page-hero-bg {
      position: absolute;
      inset: 0;
      background-image: url('/assets/images/backpic/back-1.png');
      background-size: cover;
      background-position: center;
      opacity: 0.1;
    }

    .page-hero::before {
      content: '';
      position: absolute;
      inset: 0;
      background-image: radial-gradient(circle, rgba(46, 99, 246, 0.12) 1px, transparent 1px);
      background-size: 24px 24px;
      opacity: 0.4;
    }

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

    .breadcrumb {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 13px;
      color: var(--text-weak);
      margin-bottom: 16px;
    }

    .breadcrumb a {
      color: var(--text-sub);
      transition: color .2s;
    }

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

    .breadcrumb i {
      font-size: 10px;
      color: #C0C8D4;
    }

    .page-hero h1 {
      font-size: 32px;
      font-weight: 700;
      line-height: 1.3;
      color: var(--text);
      margin-bottom: 14px;
    }

    .page-hero p {
      font-size: 16px;
      line-height: 1.75;
      max-width: 680px;
      color: var(--text-sub);
    }

    /* ===== Section ===== */
    .section {
      padding: var(--section-space) 0;
    }

    .section-light {
      background: #FFFFFF;
    }

    .section-header {
      margin-bottom: 40px;
    }

    .section-header h2 {
      font-size: 32px;
      font-weight: 700;
      line-height: 1.3;
      color: var(--text);
      margin-bottom: 8px;
    }

    .section-header p {
      font-size: 15px;
      color: var(--text-sub);
      max-width: 560px;
    }

    .section-header-row {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 24px;
      flex-wrap: wrap;
    }

    /* ===== Value Cards ===== */
    .value-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 32px;
    }

    .value-card {
      background: var(--card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 32px 28px;
      transition: all .25s;
    }

    .value-card:hover {
      border-color: rgba(46, 99, 246, 0.4);
      box-shadow: var(--shadow-lg);
      transform: translateY(-3px);
    }

    .value-icon {
      width: 52px;
      height: 52px;
      border-radius: 14px;
      background: linear-gradient(135deg, rgba(46, 99, 246, 0.1), rgba(15, 198, 194, 0.1));
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      color: var(--primary);
      margin-bottom: 20px;
    }

    .value-card h3 {
      font-size: 20px;
      font-weight: 600;
      margin-bottom: 10px;
      color: var(--text);
    }

    .value-card p {
      font-size: 15px;
      color: var(--text-sub);
      line-height: 1.7;
    }

    /* ===== News Grid ===== */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .news-card {
      background: var(--card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: all .25s;
    }

    .news-card:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-lg);
      transform: translateY(-4px);
    }

    .news-cover {
      aspect-ratio: 16 / 9;
      overflow: hidden;
      background: var(--input-bg);
    }

    .news-cover img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .4s ease;
    }

    .news-card:hover .news-cover img {
      transform: scale(1.05);
    }

    .news-body {
      padding: 20px;
      flex: 1;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .news-meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 8px;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      padding: 3px 10px;
      background: rgba(46, 99, 246, 0.08);
      color: var(--primary);
      font-size: 12px;
      font-weight: 600;
      border-radius: 999px;
    }

    .tag-green {
      background: rgba(16, 185, 129, 0.10);
      color: #0B8F6A;
    }

    .tag-cyan {
      background: rgba(15, 198, 194, 0.10);
      color: #0B9290;
    }

    .tag-orange {
      background: rgba(245, 158, 11, 0.10);
      color: #B4620A;
    }

    .date {
      font-size: 13px;
      color: var(--text-weak);
    }

    .news-body h3 {
      font-size: 17px;
      font-weight: 600;
      line-height: 1.5;
      color: var(--text);
    }

    .news-body p {
      font-size: 14px;
      color: var(--text-sub);
      line-height: 1.65;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
      flex: 1;
    }

    /* ===== Pagination ===== */
    .pagination {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      margin-top: 48px;
    }

    .page-link {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-width: 38px;
      height: 38px;
      padding: 0 12px;
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      background: var(--card);
      color: var(--text-sub);
      font-size: 14px;
      font-weight: 500;
      transition: all .2s;
    }

    .page-link:hover {
      border-color: var(--primary);
      color: var(--primary);
    }

    .page-link.active {
      background: var(--primary);
      border-color: var(--primary);
      color: #fff;
    }

    .page-link.disabled {
      opacity: 0.45;
      cursor: not-allowed;
      pointer-events: none;
    }

    /* ===== Stats Bar ===== */
    .stats-section {
      background: var(--ink);
      padding: 64px 0;
      position: relative;
      overflow: hidden;
    }

    .stats-section::before {
      content: '';
      position: absolute;
      top: 50%;
      left: 50%;
      width: 600px;
      height: 600px;
      background: radial-gradient(circle, rgba(15, 198, 194, 0.10), transparent 70%);
      transform: translate(-50%, -50%);
      pointer-events: none;
    }

    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 32px;
      position: relative;
      z-index: 2;
    }

    .stat-item {
      text-align: center;
      padding: 12px 8px;
      border-right: 1px solid rgba(255, 255, 255, 0.08);
    }

    .stat-item:last-child {
      border-right: none;
    }

    .stat-number {
      font-size: 36px;
      font-weight: 800;
      color: #fff;
      line-height: 1.2;
    }

    .stat-plus {
      color: var(--accent);
      margin-left: 2px;
    }

    .stat-label {
      font-size: 14px;
      color: rgba(255, 255, 255, 0.6);
      margin-top: 6px;
    }

    /* ===== Topic Cards ===== */
    .topic-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

    .topic-card {
      background: var(--card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      overflow: hidden;
      display: flex;
      transition: all .25s;
    }

    .topic-card:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-lg);
      transform: translateY(-3px);
    }

    .topic-cover {
      width: 220px;
      min-height: 150px;
      flex-shrink: 0;
      overflow: hidden;
      background: var(--input-bg);
    }

    .topic-cover img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .4s;
    }

    .topic-card:hover .topic-cover img {
      transform: scale(1.04);
    }

    .topic-info {
      padding: 24px;
      display: flex;
      flex-direction: column;
      gap: 12px;
      justify-content: center;
    }

    .topic-info h3 {
      font-size: 20px;
      font-weight: 600;
      color: var(--text);
    }

    .topic-info p {
      font-size: 14px;
      color: var(--text-sub);
      line-height: 1.65;
    }

    /* ===== FAQ ===== */
    .faq-section {
      background: #FFFFFF;
    }

    .faq-layout {
      display: grid;
      grid-template-columns: 0.85fr 1.6fr;
      gap: 60px;
      align-items: start;
    }

    .faq-heading h2 {
      font-size: 32px;
      font-weight: 700;
      line-height: 1.3;
      margin-bottom: 12px;
    }

    .faq-heading p {
      font-size: 15px;
      color: var(--text-sub);
      margin-bottom: 24px;
    }

    .faq-list {
      border-top: 1px solid var(--border);
    }

    .faq-item {
      border-bottom: 1px solid var(--border);
    }

    .faq-question {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      background: transparent;
      border: none;
      padding: 20px 4px;
      font-size: 16px;
      font-weight: 600;
      color: var(--text);
      cursor: pointer;
      font-family: inherit;
      text-align: left;
      transition: color .2s;
    }

    .faq-question i {
      font-size: 14px;
      color: var(--text-weak);
      transition: transform .2s;
      flex-shrink: 0;
    }

    .faq-item.active .faq-question {
      color: var(--primary);
    }

    .faq-item.active .faq-question i {
      transform: rotate(180deg);
      color: var(--primary);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease;
    }

    .faq-answer-inner {
      padding: 0 20px 20px;
      font-size: 14px;
      color: var(--text-sub);
      line-height: 1.75;
    }

    .faq-item.active .faq-answer {
      max-height: 300px;
    }

    .faq-item.active .faq-question {
      color: var(--primary);
    }

    /* ===== CTA / Subscribe ===== */
    .cta-section {
      background: var(--ink);
      padding: 88px 0;
      position: relative;
      overflow: hidden;
    }

    .cta-section::before {
      content: '';
      position: absolute;
      top: 50%;
      left: 50%;
      width: 700px;
      height: 420px;
      background: radial-gradient(ellipse at center, rgba(15, 198, 194, 0.16), transparent 70%);
      transform: translate(-50%, -50%);
      pointer-events: none;
    }

    .cta-inner {
      position: relative;
      z-index: 2;
      text-align: center;
    }

    .cta-inner h2 {
      font-size: 32px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 12px;
      line-height: 1.35;
    }

    .cta-inner p {
      font-size: 16px;
      color: rgba(255, 255, 255, 0.65);
      max-width: 560px;
      margin: 0 auto 36px;
    }

    .subscribe-form {
      display: flex;
      gap: 12px;
      max-width: 460px;
      margin: 0 auto 16px;
    }

    .subscribe-form input {
      flex: 1;
      height: 48px;
      padding: 0 18px;
      border: 1px solid rgba(255, 255, 255, 0.2);
      border-radius: 10px;
      background: rgba(255, 255, 255, 0.07);
      color: #fff;
      font-size: 14px;
      font-family: inherit;
      outline: none;
      transition: all .2s;
    }

    .subscribe-form input::placeholder {
      color: rgba(255, 255, 255, 0.4);
    }

    .subscribe-form input:focus {
      border-color: var(--accent);
      box-shadow: 0 0 0 3px rgba(15, 198, 194, 0.15);
    }

    .cta-note {
      font-size: 13px;
      color: rgba(255, 255, 255, 0.45);
      margin-top: 16px;
    }

    /* ===== Footer ===== */
    .site-footer {
      background: var(--ink);
      padding-top: 64px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
      gap: 48px;
      padding-bottom: 48px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .footer-brand .logo-text {
      color: #fff;
    }

    .footer-brand p {
      font-size: 14px;
      color: rgba(255, 255, 255, 0.55);
      line-height: 1.8;
      margin-top: 16px;
      max-width: 280px;
    }

    .footer-col h4 {
      font-size: 16px;
      font-weight: 600;
      color: #fff;
      margin-bottom: 20px;
    }

    .footer-col a {
      display: block;
      font-size: 14px;
      color: rgba(255, 255, 255, 0.55);
      margin-bottom: 12px;
      transition: color .2s;
    }

    .footer-col a:hover {
      color: #fff;
    }

    .footer-contact-item {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 12px;
      font-size: 14px;
      color: rgba(255, 255, 255, 0.55);
    }

    .footer-contact-item i {
      color: var(--accent);
      width: 16px;
      text-align: center;
    }

    .footer-bottom-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 24px 0;
      flex-wrap: wrap;
      gap: 8px;
    }

    .footer-bottom-inner p {
      font-size: 13px;
      color: rgba(255, 255, 255, 0.4);
    }

    .footer-bottom-inner a {
      color: rgba(255, 255, 255, 0.5);
    }

    .footer-bottom-inner a:hover {
      color: #fff;
    }

    /* ===== Responsive ===== */
    @media (max-width: 1023px) {
      :root {
        --section-space: 64px;
      }

      .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .topic-card {
        flex-direction: column;
      }

      .topic-cover {
        width: 100%;
        aspect-ratio: 16 / 9;
        min-height: auto;
      }

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

      .faq-layout {
        grid-template-columns: 1fr;
        gap: 40px;
      }

      .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
      }

      .stat-item {
        border-right: none;
      }
    }

    @media (max-width: 767px) {
      .container {
        padding: 0 20px;
      }

      .page-hero {
        padding: 96px 0 44px;
      }

      .page-hero h1 {
        font-size: 26px;
      }

      .page-hero p {
        font-size: 15px;
      }

      .header-inner {
        gap: 12px;
      }

      .main-nav {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        align-items: stretch;
        padding: 16px 24px 24px;
        gap: 4px;
        box-shadow: 0 12px 24px rgba(15, 23, 42, 0.1);
        display: none;
      }

      .main-nav.open {
        display: flex;
      }

      .nav-link {
        padding: 12px 8px;
        border-radius: 8px;
        font-size: 15px;
      }

      .nav-link:hover {
        background: rgba(46, 99, 246, 0.05);
      }

      .nav-link.active {
        background: rgba(46, 99, 246, 0.08);
      }

      .nav-link.active::after {
        display: none;
      }

      .header-cta .btn {
        padding: 8px 14px;
        font-size: 14px;
      }

      .menu-toggle {
        display: flex;
      }

      .section-header h2 {
        font-size: 24px;
      }

      .value-grid {
        grid-template-columns: 1fr;
      }

      .news-grid {
        grid-template-columns: 1fr;
      }

      .topic-grid {
        grid-template-columns: 1fr;
      }

      .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 16px;
      }

      .stat-number {
        font-size: 28px;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
      }

      .subscribe-form {
        flex-direction: column;
      }

      .subscribe-form input {
        width: 100%;
      }

      .cta-inner h2 {
        font-size: 24px;
      }

      .faq-layout {
        gap: 32px;
      }

      .section-header-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
      }
    }

    @media (max-width: 520px) {
      .page-hero h1 {
        font-size: 24px;
      }

      .stats-grid {
        grid-template-columns: 1fr;
      }

      .footer-bottom-inner {
        flex-direction: column;
        align-items: center;
        text-align: center;
      }
    }

/* roulang page: category4 */
:root {
      --primary: #2E63F6;
      --primary-hover: #1D4ED8;
      --primary-active: #1E40AF;
      --accent: #0FC6C2;
      --accent-hover: #0EA5A5;
      --dark: #0B1220;
      --dark2: #111A2E;
      --bg: #F4F6FB;
      --white: #FFFFFF;
      --input-bg: #F9FAFC;
      --text: #1A2233;
      --text-sub: #5B6577;
      --text-weak: #98A2B3;
      --border: #E9EDF5;
      --border-input: #D6DCE8;
      --success: #10B981;
      --warning: #F59E0B;
      --danger: #EF4444;
      --radius-lg: 12px;
      --radius-md: 8px;
      --radius-sm: 6px;
      --shadow-xs: 0 1px 2px rgba(16, 24, 40, 0.04);
      --shadow-sm: 0 2px 10px rgba(16, 24, 40, 0.06);
      --shadow-md: 0 8px 24px rgba(37, 99, 235, 0.10);
      --shadow-lg: 0 16px 40px rgba(37, 99, 235, 0.14);
      --shadow-glow: 0 0 24px rgba(46, 99, 246, 0.35);
      --gradient-main: linear-gradient(135deg, #2E63F6, #0FC6C2);
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: -apple-system, 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
      background: var(--bg);
      color: var(--text);
      line-height: 1.75;
      font-size: 15px;
      -webkit-font-smoothing: antialiased;
    }

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

    a {
      text-decoration: none;
      color: inherit;
      transition: color .2s ease;
    }

    button {
      border: none;
      background: none;
      cursor: pointer;
      font-family: inherit;
    }

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

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

    /* ===== Header ===== */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      height: 64px;
      z-index: 999;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(0, 0, 0, 0.06);
      transition: box-shadow .3s ease, background .3s ease;
    }

    .site-header.scrolled {
      background: rgba(255, 255, 255, 0.97);
      box-shadow: 0 4px 20px rgba(11, 18, 32, 0.08);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 64px;
      gap: 24px;
    }

    .logo {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }

    .logo-icon {
      width: 38px;
      height: 38px;
      border-radius: 9px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      font-weight: 800;
      color: #fff;
      background: var(--gradient-main);
      box-shadow: 0 4px 12px rgba(46, 99, 246, 0.3);
    }

    .logo-text {
      font-size: 20px;
      font-weight: 700;
      color: #111827;
      white-space: nowrap;
      letter-spacing: -0.01em;
    }

    .main-nav {
      display: flex;
      align-items: center;
      gap: 4px;
    }

    .nav-link {
      display: inline-flex;
      align-items: center;
      padding: 8px 14px;
      font-size: 15px;
      font-weight: 500;
      color: #4B5563;
      border-radius: 8px;
      position: relative;
      transition: color .2s ease, background .2s ease;
    }

    .nav-link::after {
      content: '';
      position: absolute;
      left: 14px;
      right: 14px;
      bottom: 2px;
      height: 2px;
      border-radius: 2px;
      background: var(--primary);
      transform: scaleX(0);
      transition: transform .25s ease;
    }

    .nav-link:hover {
      color: var(--primary);
      background: rgba(46, 99, 246, 0.05);
    }

    .nav-link:hover::after {
      transform: scaleX(1);
    }

    .nav-link.active {
      color: var(--primary);
      font-weight: 600;
    }

    .nav-link.active::after {
      transform: scaleX(1);
    }

    .header-cta {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      height: 40px;
      padding: 0 20px;
      border-radius: 8px;
      background: var(--gradient-main);
      color: #fff;
      font-size: 15px;
      font-weight: 600;
      box-shadow: 0 4px 12px rgba(46, 99, 246, 0.28);
      transition: transform .2s ease, filter .2s ease, box-shadow .2s ease;
    }

    .header-cta:hover {
      transform: translateY(-2px);
      filter: brightness(1.08);
      box-shadow: 0 8px 20px rgba(46, 99, 246, 0.35);
    }

    .header-cta:active {
      transform: translateY(0);
    }

    .menu-toggle {
      display: none;
      width: 40px;
      height: 40px;
      border-radius: 8px;
      align-items: center;
      justify-content: center;
      color: #374151;
      font-size: 20px;
      background: rgba(255, 255, 255, 0.8);
      border: 1px solid var(--border);
    }

    .menu-toggle:focus-visible {
      outline: 2px solid var(--primary);
      outline-offset: 2px;
    }

    /* ===== Page Banner ===== */
    .page-banner {
      position: relative;
      padding: 136px 0 72px;
      background-color: var(--bg);
      background-image: url('/assets/images/backpic/back-1.png');
      background-size: cover;
      background-position: center;
    }

    .page-banner::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background: rgba(255, 255, 255, 0.88);
      backdrop-filter: blur(2px);
    }

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

    .breadcrumb {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 6px;
      font-size: 13px;
      color: var(--text-weak);
      margin-bottom: 20px;
    }

    .breadcrumb a {
      color: var(--primary);
      transition: color .2s;
    }

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

    .breadcrumb .sep {
      color: #CBD2E0;
    }

    .banner-title {
      font-size: 36px;
      font-weight: 700;
      line-height: 1.25;
      color: #111827;
      margin-bottom: 16px;
      letter-spacing: -0.01em;
    }

    .banner-desc {
      font-size: 16px;
      line-height: 1.8;
      color: var(--text-sub);
      max-width: 760px;
    }

    .banner-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 22px;
    }

    .banner-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 14px;
      border-radius: 999px;
      background: rgba(46, 99, 246, 0.08);
      border: 1px solid rgba(46, 99, 246, 0.16);
      color: var(--primary);
      font-size: 13px;
      font-weight: 500;
    }

    /* ===== Section Common ===== */
    .section {
      padding: 80px 0;
    }

    .section-head {
      text-align: center;
      max-width: 720px;
      margin: 0 auto 52px;
    }

    .section-head .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
      text-transform: uppercase;
      letter-spacing: 0.04em;
      margin-bottom: 12px;
    }

    .section-head .eyebrow::before {
      content: '';
      width: 24px;
      height: 2px;
      border-radius: 2px;
      background: var(--gradient-main);
    }

    .section-title {
      font-size: 32px;
      font-weight: 700;
      line-height: 1.3;
      color: #111827;
      margin-bottom: 14px;
      letter-spacing: -0.01em;
    }

    .section-desc {
      font-size: 15px;
      line-height: 1.8;
      color: var(--text-sub);
    }

    /* ===== Service Cards ===== */
    .service-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .service-card {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 16px;
      padding: 28px 24px;
      transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
    }

    .service-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: rgba(46, 99, 246, 0.35);
    }

    .service-card .card-icon {
      width: 52px;
      height: 52px;
      border-radius: 14px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      color: #fff;
      background: var(--gradient-main);
      margin-bottom: 20px;
      box-shadow: 0 6px 16px rgba(46, 99, 246, 0.22);
    }

    .service-card h3 {
      font-size: 18px;
      font-weight: 600;
      color: #111827;
      margin-bottom: 10px;
      line-height: 1.4;
    }

    .service-card p {
      font-size: 14px;
      line-height: 1.75;
      color: var(--text-sub);
      margin-bottom: 16px;
    }

    .service-card .card-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 14px;
      font-weight: 500;
      color: var(--primary);
      transition: gap .2s ease;
    }

    .service-card .card-link:hover {
      gap: 10px;
      color: var(--primary-hover);
    }

    /* ===== Process ===== */
    .process-section {
      background: var(--dark);
      position: relative;
      overflow: hidden;
    }

    .process-section::before {
      content: '';
      position: absolute;
      top: -80px;
      right: -80px;
      width: 320px;
      height: 320px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(15, 198, 194, 0.12), transparent 70%);
      pointer-events: none;
    }

    .process-section .section-title {
      color: #fff;
    }

    .process-section .section-desc {
      color: rgba(255, 255, 255, 0.65);
    }

    .process-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 32px;
      margin-top: 56px;
      position: relative;
    }

    .process-card {
      text-align: center;
      padding: 28px 20px;
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 16px;
      transition: background .3s ease, transform .3s ease;
    }

    .process-card:hover {
      background: rgba(255, 255, 255, 0.08);
      transform: translateY(-4px);
    }

    .process-card .step-num {
      font-size: 32px;
      font-weight: 800;
      background: linear-gradient(135deg, #2E63F6, #0FC6C2);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      margin-bottom: 8px;
      line-height: 1.2;
    }

    .process-card h3 {
      font-size: 17px;
      font-weight: 600;
      color: #fff;
      margin-bottom: 10px;
    }

    .process-card p {
      font-size: 14px;
      line-height: 1.75;
      color: rgba(255, 255, 255, 0.6);
    }

    /* ===== Channel Cards ===== */
    .channel-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .channel-card {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 14px;
      padding: 24px;
      transition: box-shadow .25s ease, transform .25s ease, border-color .25s ease;
    }

    .channel-card:hover {
      box-shadow: var(--shadow-sm);
      transform: translateY(-3px);
      border-color: rgba(15, 198, 194, 0.4);
    }

    .channel-card .channel-icon {
      width: 44px;
      height: 44px;
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      background: rgba(46, 99, 246, 0.08);
      color: var(--primary);
      margin-bottom: 16px;
    }

    .channel-card h3 {
      font-size: 16px;
      font-weight: 600;
      color: #111827;
      margin-bottom: 8px;
    }

    .channel-card p {
      font-size: 13px;
      line-height: 1.7;
      color: var(--text-sub);
    }

    /* ===== FAQ ===== */
    .faq-wrap {
      display: grid;
      grid-template-columns: 360px 1fr;
      gap: 56px;
      align-items: start;
    }

    .faq-side .section-title {
      text-align: left;
      margin-bottom: 14px;
    }

    .faq-side .section-desc {
      margin-bottom: 24px;
      text-align: left;
    }

    .faq-side .faq-contact-btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 12px 24px;
      border-radius: 8px;
      background: var(--gradient-main);
      color: #fff;
      font-size: 15px;
      font-weight: 600;
      box-shadow: 0 6px 16px rgba(46, 99, 246, 0.2);
      transition: transform .2s ease, filter .2s ease;
    }

    .faq-side .faq-contact-btn:hover {
      transform: translateY(-2px);
      filter: brightness(1.08);
    }

    .faq-side .faq-contact-btn:active {
      transform: translateY(0);
    }

    .faq-list {
      border-top: 1px solid var(--border);
    }

    .faq-item {
      border-bottom: 1px solid var(--border);
    }

    .faq-question {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      width: 100%;
      padding: 20px 4px;
      font-size: 16px;
      font-weight: 600;
      color: #1F2937;
      text-align: left;
      transition: color .2s ease;
    }

    .faq-question:hover {
      color: var(--primary);
    }

    .faq-question:focus-visible {
      outline: 2px solid var(--primary);
      outline-offset: 2px;
      border-radius: 4px;
    }

    .faq-question .faq-icon {
      flex-shrink: 0;
      width: 28px;
      height: 28px;
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 13px;
      color: var(--primary);
      background: rgba(46, 99, 246, 0.08);
      transition: transform .25s ease, background .25s ease, color .25s ease;
    }

    .faq-item.open .faq-icon {
      transform: rotate(45deg);
      background: var(--primary);
      color: #fff;
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height .35s ease, padding .3s ease;
      font-size: 14px;
      line-height: 1.8;
      color: var(--text-sub);
    }

    .faq-item.open .faq-answer {
      max-height: 320px;
      padding: 0 40px 20px 4px;
    }

    /* ===== CTA ===== */
    .cta-section {
      background: var(--dark);
      position: relative;
      overflow: hidden;
      padding: 80px 0;
    }

    .cta-section::before {
      content: '';
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      width: 640px;
      height: 640px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(15, 198, 194, 0.1), transparent 70%);
      pointer-events: none;
    }

    .cta-inner {
      position: relative;
      z-index: 1;
      text-align: center;
      max-width: 640px;
      margin: 0 auto;
    }

    .cta-title {
      font-size: 32px;
      font-weight: 700;
      color: #fff;
      line-height: 1.3;
      margin-bottom: 16px;
    }

    .cta-desc {
      font-size: 16px;
      line-height: 1.8;
      color: rgba(255, 255, 255, 0.6);
      margin-bottom: 32px;
    }

    .cta-buttons {
      display: flex;
      justify-content: center;
      flex-wrap: wrap;
      gap: 16px;
    }

    .btn-main {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      height: 48px;
      padding: 0 32px;
      border-radius: 12px;
      background: var(--gradient-main);
      color: #fff;
      font-size: 16px;
      font-weight: 600;
      box-shadow: var(--shadow-glow);
      transition: transform .2s ease, filter .2s ease, box-shadow .2s ease;
    }

    .btn-main:hover {
      transform: translateY(-2px);
      filter: brightness(1.08);
      box-shadow: 0 0 32px rgba(46, 99, 246, 0.45);
    }

    .btn-main:active {
      transform: translateY(0);
      box-shadow: 0 0 16px rgba(46, 99, 246, 0.3);
    }

    .btn-outline-light {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      height: 48px;
      padding: 0 32px;
      border-radius: 12px;
      border: 1px solid rgba(255, 255, 255, 0.3);
      color: #fff;
      font-size: 16px;
      font-weight: 500;
      transition: background .2s ease, transform .2s ease, border-color .2s ease;
    }

    .btn-outline-light:hover {
      background: rgba(255, 255, 255, 0.08);
      border-color: rgba(255, 255, 255, 0.5);
      transform: translateY(-2px);
    }

    .btn-outline-light:active {
      transform: translateY(0);
    }

    .cta-note {
      margin-top: 20px;
      font-size: 13px;
      color: rgba(255, 255, 255, 0.4);
    }

    /* ===== Footer ===== */
    .site-footer {
      background: var(--dark);
      color: rgba(255, 255, 255, 0.6);
      padding-top: 64px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
      gap: 40px;
      padding-bottom: 48px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .footer-brand .logo-text {
      color: #fff;
    }

    .footer-brand p {
      font-size: 14px;
      line-height: 1.75;
      margin-top: 16px;
      color: rgba(255, 255, 255, 0.55);
      max-width: 280px;
    }

    .footer-col h4 {
      font-size: 16px;
      font-weight: 600;
      color: #fff;
      margin-bottom: 20px;
    }

    .footer-col a {
      display: block;
      font-size: 14px;
      line-height: 1.8;
      color: rgba(255, 255, 255, 0.5);
      padding: 4px 0;
      transition: color .2s ease;
    }

    .footer-col a:hover {
      color: #fff;
    }

    .footer-contact-item {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 14px;
      color: rgba(255, 255, 255, 0.5);
      margin-bottom: 12px;
    }

    .footer-contact-item i {
      width: 16px;
      text-align: center;
      color: rgba(255, 255, 255, 0.6);
    }

    .footer-bottom {
      padding: 24px 0;
    }

    .footer-bottom-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 8px;
      font-size: 13px;
      color: rgba(255, 255, 255, 0.4);
    }

    .footer-bottom-inner a {
      color: rgba(255, 255, 255, 0.4);
    }

    .footer-bottom-inner a:hover {
      color: #fff;
    }

    /* ===== Responsive ===== */
    @media (max-width: 1024px) {
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .container {
        padding: 0 20px;
      }

      .section {
        padding: 56px 0;
      }

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

      .menu-toggle {
        display: flex;
      }

      .main-nav {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        align-items: stretch;
        padding: 16px 20px 24px;
        gap: 4px;
        box-shadow: 0 16px 32px rgba(11, 18, 32, 0.12);
        transform: translateY(-120%);
        transition: transform .35s ease;
        border-bottom-left-radius: 16px;
        border-bottom-right-radius: 16px;
        z-index: 998;
      }

      .main-nav.open {
        transform: translateY(0);
      }

      .nav-link {
        padding: 12px 16px;
      }

      .nav-link::after {
        display: none;
      }

      .nav-link.active {
        background: rgba(46, 99, 246, 0.08);
      }

      .header-cta {
        padding: 0 16px;
        font-size: 14px;
      }

      .page-banner {
        padding: 116px 0 48px;
      }

      .banner-title {
        font-size: 28px;
      }

      .banner-desc {
        font-size: 15px;
      }

      .service-grid,
      .channel-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
      }

      .process-grid {
        grid-template-columns: 1fr 1fr;
        gap: 16px;
        margin-top: 40px;
      }

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

      .cta-title {
        font-size: 26px;
      }

      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px 24px;
      }
    }

    @media (max-width: 520px) {
      .container {
        padding: 0 16px;
      }

      .header-cta span {
        display: none;
      }

      .header-cta {
        width: 40px;
        height: 40px;
        padding: 0;
        justify-content: center;
      }

      .service-grid,
      .channel-grid {
        grid-template-columns: 1fr;
      }

      .process-grid {
        grid-template-columns: 1fr;
      }

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

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

      .cta-buttons {
        flex-direction: column;
        align-items: stretch;
      }

      .btn-main,
      .btn-outline-light {
        justify-content: center;
      }
    }