/* roulang page: index */
:root {
  --primary: #2058FF;
  --primary-dark: #1746D1;
  --primary-light: #EAF0FF;
  --primary-lighter: #F5F8FF;
  --accent: #FF8A3D;
  --accent-light: #FFF1E8;
  --dark: #0E1524;
  --dark-2: #1A2340;
  --dark-3: #242F4F;
  --text: #1B2A4A;
  --text-weak: #5B6B8C;
  --text-light: #8A97B5;
  --bg: #F5F8FF;
  --white: #FFFFFF;
  --border: #E1E8F5;
  --radius-sm: 8px;
  --radius: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --shadow-sm: 0 2px 10px rgba(16, 24, 40, 0.05);
  --shadow: 0 8px 30px rgba(16, 24, 40, 0.08);
  --shadow-lg: 0 20px 50px rgba(16, 24, 40, 0.12);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-primary: -apple-system, BlinkMacSystemFont, "PingFang SC", "Segoe UI", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-primary);
  line-height: 1.7;
  color: var(--text);
  background-color: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

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

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
}

ul, ol {
  list-style: none;
}

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

.section-pad {
  padding: 100px 0;
}

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 60px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  padding: 6px 18px;
  border-radius: 100px;
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}

.section-title {
  font-size: 38px;
  font-weight: 800;
  line-height: 1.3;
  color: var(--dark);
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.section-desc {
  font-size: 16px;
  color: var(--text-weak);
  line-height: 1.8;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 100px;
  font-size: 15px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  line-height: 1.4;
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 16px rgba(32, 88, 255, 0.3);
}

.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(32, 88, 255, 0.4);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(32, 88, 255, 0.3);
}

.btn-outline {
  background: transparent;
  border: 2px solid rgba(255, 255, 255, 0.7);
  color: #fff;
}

.btn-outline:hover {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  transform: translateY(-2px);
}

.btn-light {
  background: #fff;
  color: var(--primary);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.btn-light:hover {
  background: var(--primary-light);
  color: var(--primary-dark);
  transform: translateY(-2px);
}

.btn:focus-visible {
  outline: 3px solid rgba(32, 88, 255, 0.4);
  outline-offset: 2px;
}

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(225, 232, 245, 0.8);
  transition: var(--transition);
}

.site-header.scrolled {
  box-shadow: 0 4px 20px rgba(16, 24, 40, 0.08);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: var(--dark);
  letter-spacing: -0.3px;
  flex-shrink: 0;
}

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

.brand-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), #60A5FA);
  color: #fff;
  font-size: 18px;
  box-shadow: 0 4px 12px rgba(32, 88, 255, 0.3);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.main-nav > a:not(.btn) {
  padding: 10px 18px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  border-radius: 100px;
  position: relative;
  transition: var(--transition);
}

.main-nav > a:not(.btn):hover {
  color: var(--primary);
  background: var(--primary-light);
}

.main-nav > a.active {
  color: var(--primary);
  font-weight: 600;
  background: var(--primary-light);
}

.main-nav .nav-cta {
  margin-left: 12px;
  padding: 10px 24px;
  font-size: 14px;
}

.hamburger {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #fff;
  color: var(--text);
  font-size: 18px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.hamburger:hover {
  background: var(--primary-light);
  color: var(--primary);
}

/* ===== Hero ===== */
.hero {
  position: relative;
  padding: 160px 0 110px;
  color: #fff;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  z-index: -2;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10, 18, 35, 0.92) 0%, rgba(16, 38, 80, 0.82) 50%, rgba(32, 88, 255, 0.5) 100%);
  z-index: -1;
}

.hero-inner {
  max-width: 820px;
  text-align: center;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(10px);
  padding: 8px 22px;
  border-radius: 100px;
  font-size: 14px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.95);
  margin-bottom: 28px;
  letter-spacing: 0.3px;
}

.hero-badge i {
  color: var(--accent);
}

.hero h1 {
  font-size: 52px;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 24px;
  letter-spacing: -1px;
  color: #fff;
}

.hero h1 .highlight {
  background: linear-gradient(135deg, #FFB36B, #FF8A3D);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 18px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.85);
  max-width: 620px;
  margin: 0 auto 40px;
}

.hero-btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 60px;
}

.hero-trust {
  display: flex;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
  padding-top: 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

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

.trust-value {
  font-size: 32px;
  font-weight: 800;
  color: #fff;
  line-height: 1.3;
}

.trust-value span {
  font-size: 16px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.7);
  margin-left: 4px;
}

.trust-label {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 4px;
}

/* ===== 核心服务 ===== */
.features {
  background: var(--white);
  border-bottom: 1px solid var(--border);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.feature-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

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

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
  background: var(--white);
}

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

.feature-icon {
  width: 64px;
  height: 64px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 24px;
  color: var(--primary);
  background: var(--primary-light);
  transition: var(--transition);
}

.feature-card:hover .feature-icon {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 8px 20px rgba(32, 88, 255, 0.3);
  transform: scale(1.05);
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 12px;
}

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

/* ===== 分类入口 ===== */
.category-section {
  background: var(--bg);
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.category-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: block;
  color: inherit;
}

.category-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  color: inherit;
}

.category-image {
  position: relative;
  height: 220px;
  overflow: hidden;
}

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

.category-card:hover .category-image img {
  transform: scale(1.08);
}

.category-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(14, 21, 36, 0.6));
}

.category-body {
  padding: 28px;
}

.category-body .cat-badge {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 100px;
  margin-bottom: 14px;
}

.category-body h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 10px;
}

.category-body p {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.7;
  margin-bottom: 18px;
}

.category-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
}

.category-link i {
  transition: transform 0.3s ease;
}

.category-card:hover .category-link i {
  transform: translateX(4px);
}

/* ===== 最新资讯 ===== */
.news-section {
  background: var(--white);
}

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

.news-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: var(--transition);
  display: block;
  color: inherit;
  position: relative;
}

.news-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: transparent;
  background: var(--white);
  color: inherit;
}

.news-meta-top {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.news-cat {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 100px;
}

.news-time {
  font-size: 13px;
  color: var(--text-light);
  display: flex;
  align-items: center;
  gap: 5px;
}

.news-item h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 10px;
  line-height: 1.5;
  transition: var(--transition);
}

.news-item:hover h3 {
  color: var(--primary);
}

.news-item p {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.7;
  margin-bottom: 0;
}

.empty-tip {
  grid-column: 1 / -1;
  text-align: center;
  padding: 48px;
  font-size: 16px;
  color: var(--text-weak);
  background: var(--bg);
  border-radius: var(--radius);
  border: 1px dashed var(--border);
}

/* ===== 登录流程 ===== */
.process-section {
  position: relative;
  background-color: var(--dark);
  color: #fff;
  overflow: hidden;
}

.process-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  opacity: 0.25;
  z-index: 0;
}

.process-section .container {
  position: relative;
  z-index: 1;
}

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

.process-section .section-tag {
  background: rgba(255, 138, 61, 0.15);
  color: var(--accent);
}

.process-section .section-desc {
  color: rgba(255, 255, 255, 0.7);
}

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

.process-grid::before {
  content: '';
  position: absolute;
  top: 48px;
  left: 12%;
  right: 12%;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent), var(--primary));
  opacity: 0.4;
  z-index: 0;
}

.process-step {
  text-align: center;
  position: relative;
  z-index: 1;
}

.step-num {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--dark-2), var(--dark-3));
  border: 2px solid rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  font-weight: 800;
  color: var(--accent);
  margin: 0 auto 24px;
  position: relative;
  transition: var(--transition);
  box-shadow: 0 0 0 8px rgba(32, 88, 255, 0.1);
}

.process-step:hover .step-num {
  border-color: var(--accent);
  box-shadow: 0 0 0 12px rgba(255, 138, 61, 0.15);
  transform: scale(1.05);
}

.process-step h3 {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
}

.process-step p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.7;
  max-width: 200px;
  margin: 0 auto;
}

/* ===== 数据指标 ===== */
.stats-section {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  padding: 80px 0;
  color: #fff;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  text-align: center;
}

.stat-item {
  padding: 20px;
}

.stat-number {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 8px;
  background: linear-gradient(135deg, #fff, rgba(255, 255, 255, 0.75));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-number sup {
  font-size: 20px;
  font-weight: 600;
  -webkit-text-fill-color: rgba(255, 255, 255, 0.6);
}

.stat-label {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.75);
}

.stat-divider {
  width: 1px;
  background: rgba(255, 255, 255, 0.15);
}

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

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

.faq-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 16px;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item.open {
  border-color: var(--primary);
  box-shadow: var(--shadow);
}

.faq-question {
  width: 100%;
  padding: 24px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-size: 16px;
  font-weight: 600;
  color: var(--dark);
  transition: var(--transition);
}

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

.faq-question .faq-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
  transition: var(--transition);
}

.faq-item.open .faq-icon {
  background: var(--primary);
  color: #fff;
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-answer-inner {
  padding: 0 28px 24px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-weak);
}

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

/* ===== CTA ===== */
.cta-section {
  position: relative;
  padding: 100px 0;
  color: #fff;
  overflow: hidden;
}

.cta-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-3.png');
  background-size: cover;
  background-position: center;
  z-index: -2;
}

.cta-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(13, 20, 36, 0.95), rgba(23, 70, 209, 0.85));
  z-index: -1;
}

.cta-inner {
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}

.cta-inner h2 {
  font-size: 40px;
  font-weight: 800;
  margin-bottom: 16px;
  color: #fff;
  line-height: 1.3;
}

.cta-inner p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 36px;
  line-height: 1.8;
}

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

/* ===== Footer ===== */
.site-footer {
  background: var(--dark);
  color: rgba(255, 255, 255, 0.65);
  padding: 80px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 60px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand .footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
}

.footer-brand .footer-logo i {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), #60A5FA);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: #fff;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.5);
  max-width: 320px;
}

.footer-col h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 20px;
}

.footer-col a {
  display: block;
  padding: 6px 0;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  transition: var(--transition);
}

.footer-col a:hover {
  color: var(--accent);
  padding-left: 6px;
}

.footer-contact p {
  font-size: 14px;
  padding: 4px 0;
  color: rgba(255, 255, 255, 0.6);
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer-contact p i {
  color: var(--primary);
  width: 16px;
}

.footer-bottom {
  padding: 24px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.35);
}

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

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

/* ===== 移动端导航面板 ===== */
.mobile-nav {
  display: none;
  position: fixed;
  top: 76px;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(20px);
  padding: 24px;
  border-bottom: 1px solid var(--border);
  box-shadow: 0 12px 32px rgba(16, 24, 40, 0.12);
  z-index: 999;
}

.mobile-nav.open {
  display: block;
  animation: slideDown 0.3s ease;
}

.mobile-nav a {
  display: block;
  padding: 14px 16px;
  font-size: 16px;
  font-weight: 500;
  color: var(--text);
  border-radius: 12px;
  transition: var(--transition);
}

.mobile-nav a:hover {
  background: var(--primary-light);
  color: var(--primary);
}

.mobile-nav a.active {
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 600;
}

.mobile-nav .mobile-cta {
  margin-top: 12px;
  background: var(--primary);
  color: #fff;
  text-align: center;
  font-weight: 600;
}

.mobile-nav .mobile-cta:hover {
  background: var(--primary-dark);
  color: #fff;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== 焦点可见性 ===== */
a:focus-visible,
button:focus-visible {
  outline: 3px solid rgba(32, 88, 255, 0.4);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ===== 响应式断点 ===== */
@media (max-width: 1024px) {
  .section-pad {
    padding: 80px 0;
  }

  .features-grid {
    gap: 24px;
  }

  .category-grid {
    gap: 24px;
  }

  .process-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
  }

  .process-grid::before {
    display: none;
  }

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

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
  }

  .section-title {
    font-size: 32px;
  }

  .hero h1 {
    font-size: 44px;
  }
}

@media (max-width: 768px) {
  .site-header .container {
    height: 64px;
  }

  .main-nav {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .mobile-nav {
    top: 64px;
  }

  .brand {
    font-size: 18px;
  }

  .brand-icon {
    width: 34px;
    height: 34px;
    font-size: 15px;
  }

  .hero {
    padding: 130px 0 80px;
  }

  .hero h1 {
    font-size: 36px;
  }

  .hero-desc {
    font-size: 16px;
  }

  .hero-trust {
    gap: 28px;
  }

  .trust-value {
    font-size: 26px;
  }

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

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

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

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

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
    padding-bottom: 40px;
  }

  .cta-inner h2 {
    font-size: 32px;
  }

  .faq-question {
    font-size: 15px;
    padding: 20px;
  }

  .faq-answer-inner {
    padding: 0 20px 20px;
  }
}

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

  .section-pad {
    padding: 64px 0;
  }

  .hero {
    padding: 110px 0 64px;
  }

  .hero h1 {
    font-size: 28px;
  }

  .hero-badge {
    font-size: 13px;
    padding: 6px 16px;
  }

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

  .hero-btns {
    flex-direction: column;
    align-items: center;
    gap: 12px;
  }

  .hero-btns .btn {
    width: 100%;
    max-width: 280px;
  }

  .hero-trust {
    flex-direction: column;
    gap: 16px;
  }

  .btn {
    padding: 12px 24px;
    font-size: 14px;
  }

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

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

  .stat-number {
    font-size: 36px;
  }

  .news-item {
    padding: 24px;
  }

  .news-item h3 {
    font-size: 17px;
  }

  .category-body {
    padding: 20px;
  }

  .faq-question {
    font-size: 14px;
  }

  .faq-question .faq-icon {
    width: 28px;
    height: 28px;
  }

  .cta-btns {
    flex-direction: column;
    align-items: center;
    gap: 12px;
  }

  .cta-btns .btn {
    width: 100%;
    max-width: 280px;
  }

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

/* roulang page: category1 */
:root {
  --primary: #0f2b46;
  --primary-light: #1b4a7a;
  --accent: #f0a83c;
  --accent-dark: #d18c22;
  --bg: #f6f8fb;
  --white: #ffffff;
  --text: #172033;
  --text-light: #5c6b82;
  --border: #e2e8f0;
  --radius: 16px;
  --shadow: 0 10px 30px rgba(15, 43, 70, 0.08);
  --shadow-hover: 0 18px 40px rgba(15, 43, 70, 0.14);
  --transition: all 0.3s ease;
  --font-main: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}

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

a:hover, a:focus {
  color: var(--accent-dark);
}

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

button, input, select, textarea {
  font-family: var(--font-main);
  font-size: 16px;
}

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

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

/* ========== Header & Navigation ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 16px rgba(15, 43, 70, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 20px;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 20px;
  color: var(--primary);
  white-space: nowrap;
  letter-spacing: 0.5px;
}

.site-logo:hover {
  color: var(--primary);
}

.logo-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  border-radius: 10px;
  font-size: 17px;
  flex-shrink: 0;
}

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

.main-nav a:not(.btn) {
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  padding: 8px 2px;
  position: relative;
  border-bottom: 2px solid transparent;
}

.main-nav a:not(.btn):hover,
.main-nav a:not(.btn).active {
  color: var(--primary);
  border-bottom-color: var(--accent);
}

.nav-cta {
  margin-left: 6px;
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  width: 42px;
  height: 42px;
  font-size: 18px;
  color: var(--primary);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.nav-toggle:hover {
  background: var(--bg);
}

@media (max-width: 900px) {
  .nav-toggle {
    display: inline-flex;
  }

  .main-nav {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    align-items: stretch;
    padding: 12px 24px 20px;
    gap: 4px;
    display: none;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 20px 30px rgba(15, 43, 70, 0.08);
  }

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

  .main-nav a:not(.btn) {
    padding: 12px 8px;
    border-bottom: 1px solid var(--border);
    font-size: 16px;
  }

  .main-nav a:not(.btn).active {
    color: var(--primary);
    border-bottom-color: var(--border);
    background: rgba(240, 168, 60, 0.08);
    border-radius: 8px 8px 0 0;
  }

  .nav-cta {
    margin-top: 10px;
    text-align: center;
  }
}

/* ========== Buttons ========== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
  justify-content: center;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #fff;
  border-color: transparent;
  box-shadow: 0 6px 18px rgba(240, 168, 60, 0.28);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--accent-dark), var(--accent));
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(240, 168, 60, 0.36);
}

.btn-outline {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.7);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border-color: #fff;
}

.btn-outline-dark {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}

.btn-outline-dark:hover {
  background: var(--primary);
  color: #fff;
}

.btn:focus-visible {
  outline: 3px solid rgba(240, 168, 60, 0.5);
  outline-offset: 2px;
}

/* ========== Banner / Page Hero ========== */
.page-banner {
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  position: relative;
  padding: 110px 0 130px;
  color: #fff;
}

.page-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(15, 43, 70, 0.92) 20%, rgba(15, 43, 70, 0.55) 68%, rgba(27, 74, 122, 0.45) 100%);
  z-index: 1;
}

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

.banner-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(240, 168, 60, 0.2);
  border: 1px solid rgba(240, 168, 60, 0.5);
  color: #f6d491;
  font-size: 13px;
  padding: 6px 16px;
  border-radius: 50px;
  margin-bottom: 20px;
  font-weight: 500;
}

.page-banner h1 {
  font-size: 42px;
  font-weight: 700;
  margin: 0 0 16px;
  line-height: 1.25;
  letter-spacing: 0.5px;
  max-width: 720px;
}

.page-banner .banner-desc {
  font-size: 17px;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.85);
  max-width: 620px;
  margin-bottom: 32px;
}

.banner-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  margin-bottom: 24px;
  color: rgba(255, 255, 255, 0.65);
}

.breadcrumb a {
  color: rgba(255, 255, 255, 0.8);
  transition: var(--transition);
}

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

.breadcrumb .sep {
  opacity: 0.5;
}

.breadcrumb .current {
  color: var(--accent);
  font-weight: 500;
}

@media (max-width: 768px) {
  .page-banner {
    padding: 80px 0 100px;
  }

  .page-banner h1 {
    font-size: 30px;
  }

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

@media (max-width: 520px) {
  .page-banner h1 {
    font-size: 25px;
  }

  .banner-actions .btn {
    width: 100%;
  }
}

/* ========== Stats Section ========== */
.stats-section {
  margin-top: -60px;
  position: relative;
  z-index: 10;
  padding-bottom: 0;
}

.stat-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-align: center;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: var(--transition);
  height: 100%;
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(240, 168, 60, 0.4);
}

.stat-number {
  font-size: 38px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
  margin-bottom: 6px;
  letter-spacing: -1px;
}

.stat-label {
  font-size: 14px;
  color: var(--text-light);
  font-weight: 500;
}

@media (max-width: 640px) {
  .stats-section .cell {
    margin-bottom: 16px;
  }

  .stat-number {
    font-size: 30px;
  }
}

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

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 48px;
}

.section-eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  color: var(--accent-dark);
  background: rgba(240, 168, 60, 0.1);
  border-radius: 50px;
  padding: 5px 16px;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-header h2 {
  font-size: 34px;
  font-weight: 700;
  color: var(--primary);
  margin: 0 0 14px;
  line-height: 1.3;
}

.section-header p {
  font-size: 16px;
  color: var(--text-light);
  margin: 0;
}

@media (max-width: 768px) {
  .section {
    padding: 56px 0;
  }

  .section-header h2 {
    font-size: 26px;
  }
}

/* ========== Guide Cards ========== */
.guide-section {
  background: var(--white);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.guide-card {
  background: var(--bg);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 34px 28px;
  height: 100%;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.guide-card::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 80px;
  height: 80px;
  background: radial-gradient(circle, rgba(240, 168, 60, 0.08) 0%, transparent 70%);
  transition: var(--transition);
}

.guide-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(240, 168, 60, 0.35);
}

.guide-card:hover::after {
  width: 140px;
  height: 140px;
  background: radial-gradient(circle, rgba(240, 168, 60, 0.15) 0%, transparent 70%);
}

.guide-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 22px;
  margin-bottom: 20px;
  box-shadow: 0 8px 16px rgba(15, 43, 70, 0.18);
}

.guide-card h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--primary);
  margin: 0 0 10px;
}

.guide-card p {
  font-size: 14.5px;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 18px;
  flex-grow: 1;
}

.guide-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.tag {
  display: inline-flex;
  align-items: center;
  font-size: 12px;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: 50px;
  background: rgba(15, 43, 70, 0.06);
  color: var(--primary-light);
  border: 1px solid rgba(15, 43, 70, 0.08);
}

.tag-hot {
  background: rgba(240, 168, 60, 0.12);
  color: var(--accent-dark);
  border-color: rgba(240, 168, 60, 0.2);
}

.guide-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
}

.guide-link i {
  transition: var(--transition);
}

.guide-link:hover i {
  transform: translateX(4px);
}

@media (max-width: 900px) {
  .guide-card {
    margin-bottom: 16px;
  }
}

/* ========== Flow Steps ========== */
.flow-section {
  background: linear-gradient(150deg, var(--primary) 0%, var(--primary-light) 100%);
  color: #fff;
  position: relative;
  overflow: hidden;
}

.flow-section::before {
  content: '';
  position: absolute;
  right: -100px;
  top: -100px;
  width: 300px;
  height: 300px;
  background: rgba(240, 168, 60, 0.08);
  border-radius: 50%;
}

.flow-section .section-header h2 {
  color: #fff;
}

.flow-section .section-header p {
  color: rgba(255, 255, 255, 0.7);
}

.flow-steps {
  position: relative;
  z-index: 2;
}

.flow-step {
  text-align: center;
  padding: 24px 16px;
  position: relative;
}

.step-number {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--primary);
  font-size: 20px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 18px;
  box-shadow: 0 0 0 6px rgba(240, 168, 60, 0.2);
  position: relative;
  z-index: 2;
}

.step-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 6px;
}

.step-desc {
  font-size: 13.5px;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.6;
}

.flow-step:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 50px;
  left: calc(50% + 40px);
  width: calc(100% - 80px);
  height: 2px;
  background: rgba(255, 255, 255, 0.2);
  border-top: 2px dashed rgba(255, 255, 255, 0.3);
  z-index: 1;
}

@media (max-width: 900px) {
  .flow-step::after {
    display: none;
  }

  .flow-step {
    margin-bottom: 16px;
  }
}

/* ========== Tips Section ========== */
.tips-section {
  background: var(--white);
}

.tips-grid {
  align-items: center;
}

.tips-image {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.tips-image img {
  width: 100%;
  height: 380px;
  object-fit: cover;
}

.tips-image .img-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(15, 43, 70, 0.8));
  padding: 40px 24px 18px;
  color: #fff;
  font-size: 14px;
  font-weight: 500;
}

.tips-content h2 {
  font-size: 30px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 14px;
  line-height: 1.3;
}

.tips-content > p {
  color: var(--text-light);
  font-size: 15px;
  line-height: 1.75;
  margin-bottom: 24px;
}

.tips-list {
  list-style: none;
  padding: 0;
  margin: 0 0 28px;
}

.tips-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 0;
  font-size: 15px;
  color: var(--text);
  border-bottom: 1px solid var(--border);
}

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

.tips-list li i {
  color: var(--accent-dark);
  margin-top: 4px;
  font-size: 14px;
}

@media (max-width: 900px) {
  .tips-image img {
    height: 260px;
  }

  .tips-content {
    margin-top: 28px;
  }
}

/* ========== News Cards ========== */
.news-section {
  background: var(--bg);
}

.news-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.news-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

.news-thumb {
  position: relative;
  overflow: hidden;
  height: 190px;
}

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

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

.news-thumb .news-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  background: var(--accent);
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 50px;
  z-index: 2;
}

.news-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.news-body h3 {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
  margin: 0 0 10px;
  color: var(--text);
}

.news-body h3 a {
  color: var(--text);
}

.news-body h3 a:hover {
  color: var(--primary);
}

.news-body p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.6;
  margin-bottom: 16px;
  flex-grow: 1;
}

.news-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-light);
  border-top: 1px solid var(--border);
  padding-top: 14px;
}

.news-meta a {
  font-weight: 500;
  color: var(--primary);
  font-size: 13px;
}

.news-meta a i {
  font-size: 12px;
  transition: var(--transition);
}

.news-meta a:hover i {
  transform: translateX(3px);
}

@media (max-width: 900px) {
  .news-card {
    margin-bottom: 20px;
  }
}

/* ========== FAQ Section ========== */
.faq-section {
  background: var(--white);
  border-top: 1px solid var(--border);
}

.faq-wrap {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: 14px;
  transition: var(--transition);
  overflow: hidden;
}

.faq-item:hover {
  border-color: rgba(240, 168, 60, 0.4);
}

.faq-item.active {
  border-color: rgba(240, 168, 60, 0.5);
  box-shadow: 0 6px 20px rgba(15, 43, 70, 0.06);
}

.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  user-select: none;
}

.faq-q .faq-icon {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  transition: var(--transition);
}

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

.faq-a {
  display: none;
  padding: 0 24px 20px;
  font-size: 14.5px;
  color: var(--text-light);
  line-height: 1.75;
  border-top: 1px dashed var(--border);
  padding-top: 16px;
  margin-top: 2px;
}

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

/* ========== CTA Section ========== */
.cta-section {
  padding: 80px 0;
  background-image: url('/assets/images/backpic/back-3.png');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  position: relative;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15, 43, 70, 0.94), rgba(27, 74, 122, 0.88));
}

.cta-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  color: #fff;
  max-width: 720px;
  margin: 0 auto;
}

.cta-inner h2 {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.3;
}

.cta-inner p {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 32px;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 30px;
}

.cta-contact {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
}

.cta-contact i {
  margin-right: 6px;
  color: var(--accent);
}

@media (max-width: 768px) {
  .cta-section {
    padding: 60px 0;
    background-attachment: scroll;
  }

  .cta-inner h2 {
    font-size: 28px;
  }

  .cta-inner p {
    font-size: 15px;
  }

  .cta-buttons .btn {
    width: 80%;
  }
}

/* ========== Footer ========== */
.site-footer {
  background: var(--primary);
  color: rgba(255, 255, 255, 0.75);
  padding: 60px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand .footer-logo {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.footer-brand .footer-logo i {
  color: var(--accent);
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.65);
  max-width: 320px;
  margin: 0;
}

.footer-col h4 {
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 8px;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 30px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

.footer-col a {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.65);
  font-size: 14px;
  padding: 6px 0;
  transition: var(--transition);
}

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

.footer-col a i {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.35);
  transition: var(--transition);
}

.footer-col a:hover i {
  color: var(--accent);
}

.footer-contact p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
  margin: 0 0 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}

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

.footer-bottom {
  padding: 22px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}

.footer-bottom p {
  margin: 0;
}

@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 30px;
  }
}

@media (max-width: 560px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 26px;
  }
}

/* ========== Accessibility ========== */
:focus-visible {
  outline: 3px solid rgba(240, 168, 60, 0.5);
  outline-offset: 2px;
}

/* roulang page: article */
:root {
            --primary: #1e5eff;
            --primary-dark: #0d3bb8;
            --primary-light: #e8f0ff;
            --accent: #f5a623;
            --navy: #0b1a33;
            --bg: #f5f7fc;
            --white: #ffffff;
            --text: #1f2a3d;
            --text-light: #6b7a90;
            --border: #e2e8f2;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 8px 30px rgba(10, 30, 60, 0.08);
            --shadow-lg: 0 20px 50px rgba(10, 30, 60, 0.14);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font);
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-padding {
            padding: 80px 0;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 18px rgba(10, 30, 60, 0.05);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 20px;
        }
        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--navy);
            white-space: nowrap;
        }
        .brand-logo i {
            font-size: 1.5rem;
            color: var(--primary);
            background: var(--primary-light);
            border-radius: 12px;
            padding: 8px;
        }
        .brand-logo:hover {
            color: var(--navy);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .main-nav a:not(.btn) {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text);
            transition: all var(--transition);
            position: relative;
        }
        .main-nav a:not(.btn):hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .main-nav a:not(.btn).active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }
        .main-nav a:not(.btn).active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 3px;
            border-radius: 3px;
            background: var(--primary);
        }
        .nav-cta {
            margin-left: 8px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--navy);
            cursor: pointer;
            padding: 8px;
            border-radius: 8px;
            transition: background var(--transition);
        }
        .nav-toggle:hover {
            background: var(--primary-light);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 12px;
            font-weight: 600;
            font-size: 1rem;
            border: 2px solid transparent;
            cursor: pointer;
            transition: all var(--transition);
            text-align: center;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 20px rgba(30, 94, 255, 0.3);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(30, 94, 255, 0.4);
        }
        .btn-light {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
        }
        .btn-light:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            transform: translateY(-2px);
        }
        .btn-outline-light {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.7);
            color: #fff;
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-lg {
            padding: 14px 36px;
            font-size: 1.05rem;
        }
        .page-banner {
            position: relative;
            background-size: cover;
            background-position: center;
            padding: 90px 0 70px;
            color: #fff;
            overflow: hidden;
        }
        .banner-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(11, 26, 51, 0.92), rgba(11, 26, 51, 0.65));
        }
        .banner-content {
            position: relative;
            z-index: 2;
            max-width: 900px;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 0.92rem;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 18px;
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
        }
        .breadcrumb a:hover {
            color: #fff;
        }
        .breadcrumb i {
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.45);
        }
        .page-banner h1 {
            font-size: clamp(1.8rem, 4vw, 2.8rem);
            font-weight: 700;
            line-height: 1.3;
            color: #fff;
            margin-bottom: 20px;
            text-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
        }
        .article-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 18px;
            font-size: 0.92rem;
            color: rgba(255, 255, 255, 0.85);
        }
        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .article-meta i {
            color: var(--accent);
        }
        .article-section {
            background: var(--bg);
            padding: 70px 0 60px;
        }
        .article-row {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 340px;
            gap: 40px;
            align-items: start;
        }
        .article-main {
            min-width: 0;
            background: var(--white);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 44px 48px;
            border: 1px solid var(--border);
        }
        .article-card {
            width: 100%;
        }
        .article-content {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text);
            word-break: break-word;
        }
        .article-content h2 {
            font-size: 1.55rem;
            font-weight: 700;
            color: var(--navy);
            margin: 32px 0 14px;
            padding-left: 16px;
            border-left: 4px solid var(--primary);
            line-height: 1.4;
        }
        .article-content h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--navy);
            margin: 26px 0 12px;
        }
        .article-content h4 {
            font-size: 1.12rem;
            font-weight: 600;
            color: var(--navy);
            margin: 20px 0 8px;
        }
        .article-content p {
            margin: 0 0 18px;
            text-align: justify;
        }
        .article-content ul,
        .article-content ol {
            margin: 0 0 18px;
            padding-left: 24px;
        }
        .article-content li {
            margin-bottom: 6px;
        }
        .article-content blockquote {
            margin: 20px 0;
            padding: 18px 24px;
            background: var(--primary-light);
            border-left: 4px solid var(--primary);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--navy);
            font-style: normal;
        }
        .article-content img {
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            margin: 20px 0;
        }
        .article-content a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 4px;
        }
        .article-content a:hover {
            color: var(--primary-dark);
        }
        .article-content code {
            background: var(--primary-light);
            color: var(--primary-dark);
            padding: 3px 8px;
            border-radius: 6px;
            font-size: 0.9em;
            font-family: 'SF Mono', Consolas, monospace;
        }
        .article-content pre {
            background: var(--navy);
            color: #e8f0ff;
            padding: 20px;
            border-radius: var(--radius-sm);
            overflow-x: auto;
            margin: 20px 0;
        }
        .article-content pre code {
            background: transparent;
            color: inherit;
            padding: 0;
        }
        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 20px 0;
            border-radius: var(--radius-sm);
            overflow: hidden;
        }
        .article-content th,
        .article-content td {
            padding: 12px 16px;
            border: 1px solid var(--border);
            text-align: left;
        }
        .article-content th {
            background: var(--primary-light);
            color: var(--navy);
            font-weight: 600;
        }
        .article-not-found {
            text-align: center;
            padding: 60px 20px;
            background: var(--white);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
        }
        .article-not-found i {
            font-size: 3.5rem;
            color: var(--primary);
            margin-bottom: 18px;
            display: block;
        }
        .article-not-found h2 {
            font-size: 1.6rem;
            color: var(--navy);
            margin-bottom: 10px;
        }
        .article-not-found p {
            color: var(--text-light);
            margin-bottom: 20px;
        }
        .article-side {
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: sticky;
            top: 90px;
        }
        .sidebar-widget {
            background: var(--white);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            padding: 28px;
        }
        .sidebar-widget h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--navy);
            margin-bottom: 18px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--primary-light);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-widget h3 i {
            color: var(--primary);
        }
        .sidebar-post {
            display: block;
            padding: 14px 0;
            border-bottom: 1px solid var(--border);
            transition: all var(--transition);
        }
        .sidebar-post:last-child {
            border-bottom: none;
        }
        .sidebar-post:hover {
            padding-left: 8px;
        }
        .sidebar-post h4 {
            font-size: 0.98rem;
            font-weight: 600;
            color: var(--text);
            line-height: 1.5;
            margin-bottom: 4px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .sidebar-post:hover h4 {
            color: var(--primary);
        }
        .sidebar-post .post-date {
            font-size: 0.82rem;
            color: var(--text-light);
        }
        .sidebar-tip {
            background: linear-gradient(135deg, var(--navy), #10294a);
            color: #fff;
            border: none;
        }
        .sidebar-tip h3 {
            color: #fff;
            border-bottom-color: rgba(255, 255, 255, 0.15);
        }
        .sidebar-tip h3 i {
            color: var(--accent);
        }
        .sidebar-tip p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 0.95rem;
            line-height: 1.7;
            margin-top: 18px;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 12px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            background: var(--primary-light);
            color: var(--primary);
        }
        .badge-primary {
            background: var(--primary);
            color: #fff;
        }
        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 50px;
        }
        .section-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 14px;
        }
        .section-head h2 {
            font-size: 2.1rem;
            font-weight: 700;
            color: var(--navy);
            line-height: 1.3;
            margin-bottom: 10px;
        }
        .section-head p {
            color: var(--text-light);
            font-size: 1.02rem;
        }
        .related-section {
            background: var(--white);
            padding: 80px 0;
            border-top: 1px solid var(--border);
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .related-card {
            display: block;
            background: var(--white);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: all var(--transition);
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .related-img {
            height: 200px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .related-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(0, 0, 0, 0.35), transparent);
            transition: opacity var(--transition);
        }
        .related-body {
            padding: 24px 28px 28px;
        }
        .related-body .badge {
            margin-bottom: 12px;
        }
        .related-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--navy);
            line-height: 1.5;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-body p {
            font-size: 0.92rem;
            color: var(--text-light);
            line-height: 1.65;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .empty-tip {
            text-align: center;
            color: var(--text-light);
            padding: 40px 20px;
            font-size: 1rem;
        }
        .faq-section {
            background: var(--bg);
            padding: 80px 0;
        }
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .faq-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 24px 30px;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-lg);
        }
        .faq-question {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--navy);
            margin-bottom: 10px;
        }
        .faq-question i {
            color: var(--primary);
            font-size: 1.2rem;
        }
        .faq-answer {
            color: var(--text-light);
            font-size: 0.95rem;
            padding-left: 38px;
            line-height: 1.8;
        }
        .cta-section {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            padding: 80px 0;
            text-align: center;
        }
        .cta-inner {
            max-width: 640px;
            margin: 0 auto;
            color: #fff;
        }
        .cta-icon {
            width: 80px;
            height: 80px;
            background: rgba(255, 255, 255, 0.15);
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            margin-bottom: 24px;
        }
        .cta-inner h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .cta-inner p {
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 28px;
            font-size: 1.05rem;
        }
        .cta-inner .btn {
            margin: 0 8px 8px;
        }
        .site-footer {
            background: var(--navy);
            color: rgba(255, 255, 255, 0.75);
            padding: 70px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 50px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-logo i {
            color: var(--accent);
        }
        .footer-brand p {
            font-size: 0.92rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 300px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 18px;
        }
        .footer-col a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.92rem;
            margin-bottom: 10px;
            transition: all var(--transition);
        }
        .footer-col a:hover {
            color: #fff;
            padding-left: 5px;
        }
        .footer-col a i {
            font-size: 0.7rem;
        }
        .footer-contact p {
            font-size: 0.92rem;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 10px;
        }
        .footer-contact i {
            color: var(--accent);
            margin-right: 6px;
        }
        .footer-bottom {
            padding: 24px 0;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom p {
            margin: 0;
        }
        @media (max-width: 1024px) {
            .article-row {
                grid-template-columns: 1fr;
            }
            .article-side {
                position: static;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .section-padding {
                padding: 60px 0;
            }
            .page-banner {
                padding: 70px 0 50px;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: var(--white);
                flex-direction: column;
                align-items: stretch;
                padding: 16px 24px;
                box-shadow: var(--shadow-lg);
                border-bottom: 1px solid var(--border);
                gap: 4px;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a:not(.btn) {
                padding: 14px 16px;
                border-radius: 10px;
            }
            .main-nav a:not(.btn).active::after {
                display: none;
            }
            .nav-cta {
                margin: 8px 0 0;
                justify-content: center;
            }
            .nav-toggle {
                display: block;
            }
            .article-main {
                padding: 32px 24px;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .cta-inner h2 {
                font-size: 1.6rem;
            }
            .section-head h2 {
                font-size: 1.7rem;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .header-inner {
                height: 64px;
            }
            .brand-logo {
                font-size: 1.05rem;
            }
            .brand-logo i {
                font-size: 1.1rem;
                padding: 6px;
            }
            .page-banner h1 {
                font-size: 1.5rem;
            }
            .article-meta {
                gap: 10px;
                font-size: 0.82rem;
            }
            .article-main {
                padding: 24px 16px;
                border-radius: 12px;
            }
            .article-content {
                font-size: 1rem;
            }
            .btn {
                padding: 10px 20px;
                font-size: 0.95rem;
            }
            .btn-lg {
                padding: 12px 26px;
            }
            .sidebar-widget {
                padding: 20px;
            }
            .faq-item {
                padding: 18px 20px;
            }
            .faq-question {
                font-size: 0.95rem;
            }
        }

/* roulang page: category2 */
:root {
  --primary: #0b4f8a;
  --primary-dark: #083a66;
  --primary-light: #1a6fb5;
  --accent: #f0a500;
  --accent-dark: #d48f00;
  --bg: #f5f8fc;
  --bg-white: #ffffff;
  --bg-dark: #0c1a2b;
  --text: #1e2d3d;
  --text-muted: #5a6e82;
  --border: #e3eaf2;
  --radius: 16px;
  --radius-sm: 12px;
  --shadow: 0 8px 30px rgba(12, 26, 43, 0.08);
  --shadow-lg: 0 16px 40px rgba(12, 26, 43, 0.12);
  --transition: all 0.3s ease;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
a:focus-visible { outline: 3px solid rgba(240, 165, 0, 0.6); outline-offset: 2px; border-radius: 4px; }
ul, ol { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, h4, h5, h6 { line-height: 1.3; margin: 0; font-weight: 700; }
p { margin: 0; }
button { font-family: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

.grid-container { max-width: 1200px; }
.grid-x.grid-margin-x > .cell { display: flex; }
.grid-x.grid-margin-x > .cell > .card,
.grid-x.grid-margin-x > .cell > .article-card { width: 100%; }

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
  white-space: nowrap;
  letter-spacing: -0.2px;
}
.brand-logo i { color: var(--accent); font-size: 24px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 4px 20px rgba(12, 26, 43, 0.04);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
  gap: 24px;
}
.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a {
  display: inline-flex;
  align-items: center;
  padding: 9px 16px;
  border-radius: 40px;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--text);
  line-height: 1.2;
  white-space: nowrap;
}
.main-nav a:hover {
  background: rgba(12, 79, 138, 0.08);
  color: var(--primary);
}
.main-nav a.active {
  background: var(--primary);
  color: #ffffff;
  font-weight: 600;
}
.main-nav .nav-cta {
  margin-left: 10px;
  padding: 10px 24px;
  background: var(--primary);
  color: #ffffff;
  border-radius: 40px;
  font-size: 14px;
  font-weight: 600;
  border: 2px solid transparent;
}
.main-nav .nav-cta:hover {
  background: var(--primary-dark);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(12, 79, 138, 0.35);
}
.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  color: var(--primary);
  cursor: pointer;
  padding: 6px;
  border-radius: 8px;
  transition: var(--transition);
}
.menu-toggle:hover { background: rgba(12, 79, 138, 0.08); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  border: 2px solid transparent;
  cursor: pointer;
  line-height: 1.2;
  transition: var(--transition);
  text-align: center;
}
.btn-primary { background: var(--primary); color: #ffffff; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 10px 28px rgba(12, 79, 138, 0.35); }
.btn-accent { background: var(--accent); color: #0c1a2b; }
.btn-accent:hover { background: var(--accent-dark); transform: translateY(-2px); box-shadow: 0 10px 28px rgba(240, 165, 0, 0.3); }
.btn-outline-light { border-color: rgba(255, 255, 255, 0.75); color: #ffffff; background: transparent; }
.btn-outline-light:hover { background: rgba(255, 255, 255, 0.12); transform: translateY(-2px); }
.btn-lg { padding: 16px 38px; font-size: 16px; }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.tag i { font-size: 14px; }

.section { padding: 84px 0; }
.section-alt { background: #ffffff; }
.section-dark { background: var(--bg-dark); }
.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 48px;
}
.section-header h2 { font-size: 34px; font-weight: 800; color: var(--text); margin: 8px 0 14px; }
.section-header p { color: var(--text-muted); font-size: 16px; line-height: 1.7; }
.section-header.light h2 { color: #ffffff; }
.section-header.light p { color: rgba(255, 255, 255, 0.7); }

.page-hero {
  position: relative;
  padding: 110px 0;
  background: linear-gradient(135deg, rgba(8, 42, 79, 0.94), rgba(12, 79, 138, 0.86)), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
  color: #ffffff;
}
.page-hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 80px;
  background: linear-gradient(to bottom, transparent, var(--bg));
}
.page-hero .grid-container { position: relative; z-index: 2; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(240, 165, 0, 0.15);
  border: 1px solid rgba(240, 165, 0, 0.45);
  padding: 7px 18px;
  border-radius: 40px;
  font-size: 13px;
  font-weight: 600;
  color: #ffd166;
  margin-bottom: 20px;
}
.page-hero h1 { font-size: 46px; font-weight: 800; margin-bottom: 18px; line-height: 1.2; }
.page-hero p { font-size: 17px; line-height: 1.8; max-width: 700px; opacity: 0.92; margin-bottom: 32px; }
.hero-buttons { display: flex; flex-wrap: wrap; gap: 16px; }

.card {
  background: var(--bg-white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 30px 28px;
  border: 1px solid var(--border);
  transition: var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(12, 79, 138, 0.18);
}
.card-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-size: 22px;
  margin-bottom: 20px;
  box-shadow: 0 8px 20px rgba(12, 79, 138, 0.2);
}
.card h3 { font-size: 19px; font-weight: 700; color: var(--text); margin-bottom: 10px; }
.card p { color: var(--text-muted); font-size: 14.5px; line-height: 1.7; flex: 1; }
.card-link {
  margin-top: 16px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
}
.card-link:hover { color: var(--accent-dark); gap: 10px; }

.article-card {
  display: flex;
  gap: 0;
  background: var(--bg-white);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: var(--transition);
  height: 100%;
}
.article-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.article-card img {
  width: 220px;
  flex-shrink: 0;
  object-fit: cover;
}
.article-body {
  padding: 26px 24px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  flex: 1;
}
.article-body .date {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--primary);
  background: rgba(12, 79, 138, 0.08);
  padding: 4px 12px;
  border-radius: 20px;
  align-self: flex-start;
  margin-bottom: 10px;
}
.article-body h3 { font-size: 18px; font-weight: 700; color: var(--text); line-height: 1.45; margin-bottom: 8px; }
.article-body p { font-size: 14px; color: var(--text-muted); line-height: 1.65; }

.process-section { background: var(--bg-dark); color: #ffffff; }
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.process-step {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  padding: 30px 26px;
  transition: var(--transition);
  position: relative;
}
.process-step:hover {
  background: rgba(255, 255, 255, 0.09);
  border-color: rgba(240, 165, 0, 0.4);
  transform: translateY(-4px);
}
.step-num {
  font-size: 36px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 16px;
  font-family: "SF Mono", "Cascadia Code", monospace;
}
.process-step h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; color: #ffffff; }
.process-step p { font-size: 14px; color: rgba(255, 255, 255, 0.65); line-height: 1.7; }

.stats-section {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #ffffff;
  padding: 64px 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}
.stat-item { padding: 20px 12px; }
.stat-item .num {
  font-size: 42px;
  font-weight: 800;
  line-height: 1;
  margin-bottom: 10px;
  color: #ffd166;
}
.stat-item .label { font-size: 15px; opacity: 0.85; }

.faq-list { max-width: 860px; margin: 0 auto; }
.faq-item {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
  overflow: hidden;
  box-shadow: 0 4px 14px rgba(12, 26, 43, 0.04);
  transition: var(--transition);
}
.faq-item:hover { border-color: rgba(12, 79, 138, 0.2); }
.faq-item summary {
  padding: 20px 26px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  color: var(--text);
  font-size: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "\f078";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  font-size: 14px;
  color: var(--primary);
  transition: var(--transition);
  flex-shrink: 0;
}
.faq-item[open] summary::after { transform: rotate(180deg); color: var(--accent); }
.faq-item .faq-content {
  padding: 0 26px 22px;
  color: var(--text-muted);
  line-height: 1.75;
  font-size: 14.5px;
}

.cta-section {
  background: linear-gradient(135deg, rgba(8, 42, 79, 0.92), rgba(12, 79, 138, 0.84)), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  text-align: center;
  color: #ffffff;
}
.cta-section h2 { font-size: 34px; font-weight: 800; margin-bottom: 16px; }
.cta-section p { font-size: 16px; opacity: 0.88; max-width: 640px; margin: 0 auto 34px; line-height: 1.8; }
.cta-buttons { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; }

.site-footer {
  background: #0c1a2b;
  color: rgba(255, 255, 255, 0.72);
  padding: 64px 0 0;
  font-size: 14px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 44px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-logo {
  font-size: 20px;
  font-weight: 800;
  color: #ffffff;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}
.footer-logo i { color: var(--accent); }
.footer-brand p { font-size: 14px; line-height: 1.8; max-width: 340px; color: rgba(255, 255, 255, 0.6); }
.footer-col h4 {
  font-size: 16px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 16px;
}
.footer-col a {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.6);
  padding: 5px 0;
  font-size: 14px;
}
.footer-col a:hover { color: var(--accent); padding-left: 4px; }
.footer-col a i { font-size: 10px; color: var(--accent); }
.footer-contact p { display: flex; align-items: center; gap: 10px; color: rgba(255, 255, 255, 0.6); padding: 5px 0; }
.footer-contact p i { color: var(--accent); font-size: 14px; width: 18px; }
.footer-bottom {
  text-align: center;
  padding: 22px 0;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}

@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .page-hero h1 { font-size: 38px; }
}

@media (max-width: 860px) {
  .menu-toggle { display: block; }
  .main-nav {
    position: fixed;
    top: 74px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: #ffffff;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    padding: 16px 24px 24px;
    display: none;
    z-index: 99;
  }
  .main-nav.mobile-open { display: flex; }
  .main-nav a {
    text-align: center;
    justify-content: center;
    padding: 14px 16px;
    font-size: 15px;
  }
  .main-nav .nav-cta { margin: 8px auto 0; max-width: 260px; }
  .section { padding: 64px 0; }
  .section-header h2 { font-size: 28px; }
  .page-hero { padding: 84px 0; }
  .page-hero h1 { font-size: 32px; }
}

@media (max-width: 640px) {
  .article-card { flex-direction: column; }
  .article-card img { width: 100%; height: 200px; }
  .article-body { padding: 22px; }
  .process-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 20px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-brand { grid-column: auto; }
  .page-hero h1 { font-size: 28px; }
  .hero-buttons .btn { width: 100%; }
  .cta-buttons .btn { width: 100%; }
  .section { padding: 48px 0; }
  .section-header h2 { font-size: 24px; }
}

@media (max-width: 520px) {
  .container { padding: 0 18px; }
  .brand-logo { font-size: 19px; }
  .brand-logo i { font-size: 20px; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat-item .num { font-size: 32px; }
  .faq-item summary { font-size: 15px; padding: 17px 20px; }
  .faq-item .faq-content { padding: 0 20px 18px; }
}

/* roulang page: category3 */
:root {
            --color-primary: #0d2352;
            --color-primary-deep: #081735;
            --color-accent: #1f8fff;
            --color-accent-2: #00d4aa;
            --color-bg: #f5f8ff;
            --color-white: #fff;
            --color-text: #142241;
            --color-text-light: #5a6a8a;
            --color-border: #e3ebf7;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow-sm: 0 2px 10px rgba(13, 35, 82, 0.06);
            --shadow-md: 0 12px 30px rgba(13, 35, 82, 0.08);
            --shadow-lg: 0 20px 50px rgba(13, 35, 82, 0.12);
            --font-family: 'Inter', 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', sans-serif;
            --container-width: 1200px;
            --transition: all .25s ease;
        }

        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-family);
            background: var(--color-bg);
            color: var(--color-text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            display: block;
        }
        ul, ol {
            list-style: none;
        }
        button, input, textarea {
            font-family: inherit;
        }

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

        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 74px;
            gap: 20px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: -0.5px;
            white-space: nowrap;
        }
        .brand-logo i {
            color: var(--color-accent);
            font-size: 24px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .main-nav a {
            display: inline-flex;
            align-items: center;
            padding: 9px 16px;
            border-radius: 999px;
            font-size: 14.5px;
            font-weight: 600;
            color: var(--color-text-light);
            transition: var(--transition);
        }
        .main-nav a:hover {
            color: var(--color-primary);
            background: rgba(31, 143, 255, 0.08);
        }
        .main-nav a.active {
            color: #fff;
            background: var(--color-primary);
            box-shadow: 0 6px 18px rgba(13, 35, 82, 0.25);
        }
        .nav-cta.btn.btn-primary {
            background: var(--color-accent);
            color: #fff;
            padding: 9px 20px;
            border-radius: 999px;
            font-weight: 700;
            box-shadow: 0 6px 16px rgba(31, 143, 255, 0.3);
        }
        .nav-cta.btn.btn-primary:hover {
            transform: translateY(-1px);
            box-shadow: 0 10px 24px rgba(31, 143, 255, 0.4);
            color: #fff;
        }
        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border: 1px solid var(--color-border);
            border-radius: 12px;
            background: var(--color-white);
            color: var(--color-primary);
            font-size: 18px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: var(--color-bg);
            border-color: rgba(31, 143, 255, 0.4);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 13px 26px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 700;
            border: none;
            cursor: pointer;
            transition: var(--transition);
        }
        .btn-accent {
            background: var(--color-accent);
            color: #fff;
            box-shadow: 0 8px 22px rgba(31, 143, 255, 0.28);
        }
        .btn-accent:hover,
        .btn-accent:focus {
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(31, 143, 255, 0.4);
            color: #fff;
            outline: none;
        }
        .btn-ghost {
            background: transparent;
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, 0.55);
        }
        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
        }
        .btn-dark {
            background: var(--color-primary);
            color: #fff;
            box-shadow: 0 8px 20px rgba(13, 35, 82, 0.22);
        }
        .btn-dark:hover {
            background: var(--color-primary-deep);
            transform: translateY(-2px);
            color: #fff;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 7px 16px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 700;
        }
        .badge-light {
            background: rgba(255, 255, 255, 0.14);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.3);
            backdrop-filter: blur(8px);
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            background: rgba(31, 143, 255, 0.1);
            color: var(--color-accent);
            border-radius: 999px;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: .5px;
        }
        .section-tag::before {
            content: '';
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-accent);
        }

        .section-head {
            max-width: 680px;
            margin: 0 auto 48px;
            text-align: center;
        }
        .section-head h2 {
            font-size: 32px;
            line-height: 1.3;
            margin-top: 14px;
            color: var(--color-primary);
            font-weight: 800;
            letter-spacing: -0.5px;
        }
        .section-head p {
            margin-top: 12px;
            color: var(--color-text-light);
            font-size: 16px;
        }

        .page-banner {
            position: relative;
            padding: 96px 0;
            overflow: hidden;
            background: var(--color-primary-deep);
        }
        .banner-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
        }
        .banner-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(8, 23, 53, 0.94) 0%, rgba(13, 35, 82, 0.82) 45%, rgba(13, 35, 82, 0.35) 100%);
        }
        .banner-content {
            position: relative;
            z-index: 2;
            max-width: 700px;
            color: #fff;
        }
        .banner-content h1 {
            font-size: 44px;
            line-height: 1.25;
            font-weight: 800;
            margin: 20px 0 16px;
            letter-spacing: -1px;
        }
        .banner-content p {
            font-size: 16.5px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.82);
            margin-bottom: 28px;
        }
        .banner-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.65);
            margin-top: 24px;
        }
        .breadcrumb i {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
        }
        .breadcrumb a:hover {
            color: #fff;
        }

        .section-stats {
            position: relative;
            z-index: 5;
            margin-top: -62px;
            padding-bottom: 30px;
        }
        .stat-col {
            margin-bottom: 18px;
        }
        .stat-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 30px 22px;
            text-align: center;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-md);
            height: 100%;
            transition: var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .stat-num {
            font-size: 40px;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1.2;
        }
        .stat-num i {
            font-size: 22px;
            font-style: normal;
            color: var(--color-accent);
        }
        .stat-card > span {
            display: block;
            font-weight: 700;
            font-size: 16px;
            margin-top: 8px;
            color: var(--color-text);
        }
        .stat-card p {
            font-size: 13.5px;
            color: var(--color-text-light);
            margin-top: 4px;
        }

        .section-capabilities {
            padding: 80px 0;
        }
        .card-col {
            margin-bottom: 24px;
        }
        .capability-card {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .capability-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(31, 143, 255, 0.3);
        }
        .capability-img {
            position: relative;
            height: 180px;
            overflow: hidden;
        }
        .capability-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.45s ease;
        }
        .capability-card:hover .capability-img img {
            transform: scale(1.06);
        }
        .capability-icon {
            position: absolute;
            left: 20px;
            bottom: -22px;
            width: 44px;
            height: 44px;
            background: var(--color-accent);
            color: #fff;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            box-shadow: 0 8px 22px rgba(31, 143, 255, 0.4);
        }
        .capability-body {
            padding: 34px 22px 24px;
            flex: 1;
        }
        .capability-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 8px;
        }
        .capability-body p {
            font-size: 14px;
            line-height: 1.75;
            color: var(--color-text-light);
        }

        .section-flow {
            padding: 80px 0;
            background: var(--color-white);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }
        .flow-steps {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
        }
        .flow-step {
            position: relative;
            background: var(--color-bg);
            border: 1px solid var(--color-border);
            border-radius: var(--radius);
            padding: 28px 18px 22px;
            text-align: center;
            transition: var(--transition);
        }
        .flow-step:hover {
            border-color: rgba(31, 143, 255, 0.4);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .flow-step .step-num {
            width: 38px;
            height: 38px;
            margin: 0 auto 14px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            color: #fff;
            border-radius: 11px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 16px;
            box-shadow: 0 6px 16px rgba(13, 35, 82, 0.22);
        }
        .flow-step h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .flow-step p {
            font-size: 13px;
            color: var(--color-text-light);
        }
        .flow-arrow {
            position: absolute;
            right: -14px;
            top: 50%;
            transform: translateY(-50%);
            width: 24px;
            height: 24px;
            background: var(--color-accent);
            border-radius: 50%;
            color: #fff;
            font-size: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 2;
            box-shadow: 0 4px 10px rgba(31, 143, 255, 0.3);
        }

        .section-news {
            padding: 80px 0;
        }
        .news-col {
            margin-bottom: 24px;
        }
        .news-card {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius);
            padding: 22px;
            display: flex;
            flex-direction: column;
            height: 100%;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .news-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .news-tag {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 700;
            background: rgba(31, 143, 255, 0.1);
            color: var(--color-accent);
            align-self: flex-start;
        }
        .news-card h3 {
            font-size: 17px;
            line-height: 1.5;
            margin-top: 14px;
            font-weight: 700;
        }
        .news-card h3 a:hover {
            color: var(--color-accent);
        }
        .news-summary {
            margin-top: 8px;
            font-size: 14px;
            color: var(--color-text-light);
        }
        .news-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-top: auto;
            padding-top: 16px;
            font-size: 13px;
            color: var(--color-text-light);
        }
        .news-meta i {
            color: var(--color-accent);
            margin-right: 6px;
        }

        .section-faq {
            padding: 80px 0;
            background: var(--color-white);
            border-top: 1px solid var(--color-border);
        }
        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-wrap .accordion {
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border);
            padding: 0 26px;
            margin: 0;
        }
        .faq-wrap .accordion-item {
            border-bottom: 1px solid var(--color-border);
            background: transparent;
        }
        .faq-wrap .accordion-item:last-child {
            border-bottom: none;
        }
        .faq-wrap .accordion-title {
            background: transparent !important;
            border: none !important;
            padding: 22px 42px 22px 0 !important;
            font-size: 16px;
            font-weight: 700;
            color: var(--color-text) !important;
            line-height: 1.5;
            position: relative;
        }
        .faq-wrap .accordion-title:hover,
        .faq-wrap .accordion-title:focus {
            background: rgba(31, 143, 255, 0.05) !important;
            outline: none;
        }
        .faq-wrap .accordion-title::before,
        .faq-wrap .accordion-title::after {
            background: var(--color-accent) !important;
        }
        .faq-wrap .accordion-content {
            background: transparent !important;
            padding: 0 40px 20px 0 !important;
            font-size: 14.5px;
            color: var(--color-text-light);
            line-height: 1.8;
            border: none !important;
        }

        .contact-cta {
            padding: 80px 0;
        }
        .cta-box {
            position: relative;
            border-radius: 24px;
            overflow: hidden;
            background-size: cover;
            background-position: center;
            padding: 70px 56px;
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }
        .cta-box::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(105deg, rgba(8, 23, 53, 0.92) 20%, rgba(31, 143, 255, 0.72) 100%);
        }
        .cta-content {
            position: relative;
            z-index: 2;
            max-width: 560px;
        }
        .cta-content h2 {
            font-size: 28px;
            font-weight: 800;
            line-height: 1.4;
        }
        .cta-content p {
            margin-top: 10px;
            color: rgba(255, 255, 255, 0.8);
        }
        .cta-actions {
            position: relative;
            z-index: 2;
        }

        .site-footer {
            background: var(--color-primary-deep);
            color: #b6c2dc;
            padding: 64px 0 0;
            margin-top: 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.3fr;
            gap: 36px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: #fff;
        }
        .footer-logo i {
            color: var(--color-accent);
        }
        .footer-brand p {
            margin-top: 14px;
            font-size: 14px;
            line-height: 1.8;
            color: #9aa7c4;
        }
        .footer-col h4 {
            font-size: 15px;
            color: #fff;
            margin-bottom: 16px;
            font-weight: 700;
        }
        .footer-col a {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 6px 0;
            font-size: 14px;
            color: #b6c2dc;
        }
        .footer-col a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-col a i {
            font-size: 11px;
            color: var(--color-accent);
        }
        .footer-contact p {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 5px 0;
            font-size: 14px;
            color: #b6c2dc;
        }
        .footer-contact i {
            color: var(--color-accent);
            width: 18px;
        }
        .footer-bottom {
            padding: 22px 0;
            text-align: center;
            font-size: 13.5px;
            color: #7f8db0;
        }

        @media (max-width: 1024px) {
            .flow-steps {
                grid-template-columns: repeat(3, 1fr);
            }
            .flow-arrow {
                display: none;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .site-header .main-nav {
                position: fixed;
                top: 74px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                padding: 16px 20px;
                border-bottom: 1px solid var(--color-border);
                box-shadow: 0 16px 30px rgba(13, 35, 82, 0.12);
                display: none;
                gap: 6px;
            }
            .site-header .main-nav.open {
                display: flex;
            }
            .site-header .main-nav a {
                padding: 12px 18px;
                font-size: 15px;
            }
            .nav-toggle {
                display: inline-flex;
            }
            .page-banner {
                padding: 70px 0;
            }
            .banner-content h1 {
                font-size: 30px;
            }
            .section-stats {
                margin-top: -40px;
            }
            .section-capabilities {
                padding: 56px 0;
            }
            .section-head h2 {
                font-size: 26px;
            }
            .flow-steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .cta-box {
                padding: 44px 26px;
                flex-direction: column;
                text-align: center;
            }
            .cta-content {
                max-width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }
        @media (max-width: 520px) {
            .container, .grid-container {
                padding: 0 16px;
            }
            .header-inner {
                height: 64px;
            }
            .brand-logo {
                font-size: 17px;
            }
            .brand-logo i {
                font-size: 20px;
            }
            .banner-content h1 {
                font-size: 26px;
            }
            .banner-content p {
                font-size: 14.5px;
            }
            .btn {
                padding: 11px 18px;
                font-size: 14px;
            }
            .flow-steps {
                grid-template-columns: 1fr;
            }
            .stat-card {
                padding: 22px 16px;
            }
            .stat-num {
                font-size: 32px;
            }
            .news-card {
                padding: 18px;
            }
            .faq-wrap .accordion {
                padding: 0 16px;
            }
        }