/* roulang page: index */
:root {
  --primary: #0f172a;
  --primary-light: #1e293b;
  --accent: #f59e0b;
  --accent-hover: #d97706;
  --brand: #06b6d4;
  --brand-hover: #0891b2;
  --bg: #f8fafc;
  --surface: #ffffff;
  --text: #0f172a;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 4px 20px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 12px 40px rgba(15, 23, 42, 0.12);
  --transition: all 0.3s ease;
  --spacing: 80px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

input, textarea {
  font-family: inherit;
  font-size: 14px;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}

/* ===== Header & Navigation ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15, 23, 42, 0.96);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.15);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo-text {
  font-size: 24px;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: 1px;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 2px;
}

.logo-text span {
  color: var(--accent);
}

.logo-text i {
  color: var(--accent);
  font-size: 22px;
  margin-right: 8px;
}

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

.nav-links a {
  color: rgba(255, 255, 255, 0.75);
  font-size: 15px;
  font-weight: 500;
  padding: 10px 16px;
  border-radius: 30px;
  transition: var(--transition);
  position: relative;
}

.nav-links a:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.08);
}

.nav-links a.active {
  color: #0f172a;
  background: linear-gradient(135deg, #f59e0b, #fbbf24);
  font-weight: 600;
}

.nav-cta {
  margin-left: 8px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 28px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  transition: var(--transition);
  border: 2px solid transparent;
  white-space: nowrap;
}

.btn i {
  font-size: 14px;
}

.btn:focus-visible {
  outline: 3px solid rgba(245, 158, 11, 0.5);
  outline-offset: 3px;
}

.btn-accent {
  background: linear-gradient(135deg, #f59e0b, #fbbf24);
  color: #0f172a;
  box-shadow: 0 4px 16px rgba(245, 158, 11, 0.25);
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(245, 158, 11, 0.35);
  color: #0f172a;
}

.btn-accent:active {
  transform: translateY(0);
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.25);
}

.btn-outline {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.35);
  color: #ffffff;
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.8);
  transform: translateY(-2px);
}

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

.btn-dark {
  background: var(--primary);
  color: #ffffff;
}

.btn-dark:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.25);
}

.btn-lg {
  padding: 15px 36px;
  font-size: 16px;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 620px;
  display: flex;
  align-items: center;
  background-size: cover;
  background-position: center center;
  background-color: var(--primary);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(15, 23, 42, 0.92) 0%, rgba(15, 23, 42, 0.75) 50%, rgba(15, 23, 42, 0.55) 100%);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  padding-top: 90px;
  padding-bottom: 90px;
  max-width: 760px;
  margin: 0;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid rgba(245, 158, 11, 0.4);
  color: #fbbf24;
  font-size: 14px;
  font-weight: 600;
  padding: 7px 16px;
  border-radius: 40px;
  margin-bottom: 24px;
  letter-spacing: 0.5px;
}

.hero-badge i {
  font-size: 13px;
}

.hero-content h1 {
  font-size: 56px;
  font-weight: 900;
  color: #ffffff;
  line-height: 1.15;
  letter-spacing: 2px;
  margin-bottom: 20px;
  text-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.hero-content p {
  font-size: 17px;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.85);
  max-width: 560px;
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 48px;
}

.hero-mini-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 32px;
}

.hero-mini-stats > div {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.hero-mini-stats strong {
  font-size: 30px;
  font-weight: 800;
  color: #ffffff;
  line-height: 1.2;
}

.hero-mini-stats span {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  letter-spacing: 1px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 32px;
}

.hero-tags span {
  color: rgba(255, 255, 255, 0.5);
  font-size: 13px;
}

.hero-tags a {
  color: rgba(255, 255, 255, 0.75);
  font-size: 13px;
  padding: 5px 12px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 30px;
  transition: var(--transition);
}

.hero-tags a:hover {
  color: var(--accent);
  border-color: var(--accent);
}

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

.section-alt {
  background: var(--surface);
}

.section-dark {
  background: var(--primary);
  color: #ffffff;
}

.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 56px;
}

.section-head .section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(6, 182, 212, 0.08);
  color: var(--brand);
  font-size: 13px;
  font-weight: 700;
  padding: 6px 16px;
  border-radius: 30px;
  border: 1px solid rgba(6, 182, 212, 0.15);
  margin-bottom: 16px;
  letter-spacing: 1px;
}

.section-dark .section-head .section-tag {
  background: rgba(245, 158, 11, 0.12);
  color: var(--accent);
  border-color: rgba(245, 158, 11, 0.25);
}

.section-head h2 {
  font-size: 36px;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 12px;
}

.section-head p {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.7;
}

.section-dark .section-head p {
  color: rgba(255, 255, 255, 0.65);
}

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

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

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

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

.feature-card .feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: #ffffff;
  margin-bottom: 20px;
  background: linear-gradient(135deg, var(--brand), #2563eb);
  box-shadow: 0 6px 16px rgba(6, 182, 212, 0.25);
}

.feature-card:nth-child(2) .feature-icon {
  background: linear-gradient(135deg, var(--accent), #f97316);
  box-shadow: 0 6px 16px rgba(245, 158, 11, 0.25);
}

.feature-card:nth-child(3) .feature-icon {
  background: linear-gradient(135deg, #10b981, #34d399);
  box-shadow: 0 6px 16px rgba(16, 185, 129, 0.25);
}

.feature-card:nth-child(4) .feature-icon {
  background: linear-gradient(135deg, #8b5cf6, #a78bfa);
  box-shadow: 0 6px 16px rgba(139, 92, 246, 0.25);
}

.card-hover:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(6, 182, 212, 0.2);
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

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

/* ===== Category Cards ===== */
.category-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.category-card {
  background: var(--surface);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

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

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

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

.category-card:hover .category-cover img {
  transform: scale(1.06);
}

.category-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 40%, rgba(15, 23, 42, 0.7));
}

.category-content {
  padding: 30px 30px 34px;
  flex: 1;
  display: flex;
  flex-direction: column;
  position: relative;
}

.category-icon {
  position: absolute;
  top: -28px;
  right: 30px;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent), #f97316);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: #ffffff;
  box-shadow: 0 8px 20px rgba(245, 158, 11, 0.3);
}

.category-card:nth-child(2) .category-icon {
  background: linear-gradient(135deg, var(--brand), #2563eb);
  box-shadow: 0 8px 20px rgba(6, 182, 212, 0.3);
}

.category-content h3 {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 10px;
}

.category-content > p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 20px;
  flex: 1;
}

.category-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 700;
  color: var(--primary);
  transition: var(--transition);
}

.category-card:hover .category-link {
  gap: 14px;
  color: var(--accent-hover);
}

.category-card:nth-child(2):hover .category-link {
  color: var(--brand-hover);
}

/* ===== Article Grid ===== */
.article-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.article-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.article-thumb {
  height: 180px;
  overflow: hidden;
  position: relative;
}

.article-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s ease;
}

.article-card:hover .article-thumb img {
  transform: scale(1.06);
}

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

.article-tags {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
  gap: 10px;
}

.badge {
  display: inline-block;
  background: rgba(6, 182, 212, 0.08);
  color: var(--brand);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 30px;
  border: 1px solid rgba(6, 182, 212, 0.15);
}

.article-date {
  font-size: 13px;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.article-date i {
  font-size: 12px;
}

.article-title {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-title a {
  color: var(--text);
  transition: var(--transition);
}

.article-title a:hover {
  color: var(--brand);
}

.article-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 18px;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  border-top: 1px solid var(--border);
  padding-top: 14px;
  transition: var(--transition);
}

.article-more:hover {
  color: var(--accent);
  gap: 12px;
}

.empty-tip {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
  background: var(--surface);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  color: var(--text-muted);
  font-size: 15px;
}

/* ===== Stats Section ===== */
.stats-section {
  position: relative;
  background-size: cover;
  background-position: center;
  background-color: var(--primary);
  overflow: hidden;
}

.stats-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(15, 23, 42, 0.95), rgba(15, 23, 42, 0.85));
}

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

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

.stat-item {
  padding: 20px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(8px);
  transition: var(--transition);
}

.stat-item:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-4px);
}

.stat-item strong {
  display: block;
  font-size: 40px;
  font-weight: 900;
  color: var(--accent);
  letter-spacing: 1px;
  margin-bottom: 8px;
  line-height: 1.2;
}

.stat-item span {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.75);
  letter-spacing: 1px;
}

/* ===== Steps ===== */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  counter-reset: step;
}

.step-item {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 48px 28px 32px;
  text-align: center;
  transition: var(--transition);
}

.step-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.step-num {
  position: absolute;
  top: -20px;
  left: 50%;
  transform: translateX(-50%);
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent), #f97316);
  color: #ffffff;
  font-size: 18px;
  font-weight: 800;
  border-radius: 12px;
  box-shadow: 0 8px 20px rgba(245, 158, 11, 0.35);
}

.step-item:nth-child(2) .step-num {
  background: linear-gradient(135deg, var(--brand), #2563eb);
  box-shadow: 0 8px 20px rgba(6, 182, 212, 0.35);
}

.step-item:nth-child(3) .step-num {
  background: linear-gradient(135deg, #10b981, #34d399);
  box-shadow: 0 8px 20px rgba(16, 185, 129, 0.35);
}

.step-item h3 {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 10px;
  margin-top: 10px;
}

.step-item p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ===== FAQ ===== */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
}

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

.faq-item:hover {
  border-color: rgba(6, 182, 212, 0.3);
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.06);
}

.faq-item details {
  padding: 0;
}

.faq-item summary {
  padding: 22px 28px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transition: var(--transition);
  position: relative;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "\f107";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  font-size: 16px;
  color: var(--brand);
  transition: var(--transition);
  flex-shrink: 0;
}

.faq-item details[open] summary::after {
  transform: rotate(180deg);
  color: var(--accent);
}

.faq-item details[open] summary {
  color: var(--brand);
}

.faq-item .faq-answer {
  padding: 0 28px 24px;
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.75;
}

/* ===== CTA ===== */
.cta-section {
  padding-bottom: var(--spacing);
}

.cta-box {
  background: linear-gradient(135deg, var(--primary), #1e3a5f);
  border-radius: 24px;
  padding: 72px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.25), transparent 70%);
}

.cta-box::after {
  content: "";
  position: absolute;
  bottom: -80px;
  left: -40px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.18), transparent 70%);
}

.cta-box > * {
  position: relative;
  z-index: 2;
}

.cta-box h2 {
  font-size: 32px;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 16px;
}

.cta-box p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.75);
  max-width: 540px;
  margin: 0 auto 32px;
}

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

.cta-form input {
  flex: 1;
  padding: 14px 20px;
  border-radius: 50px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff;
  outline: none;
  transition: var(--transition);
}

.cta-form input::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

.cta-form input:focus {
  border-color: var(--accent);
  background: rgba(255, 255, 255, 0.18);
}

/* ===== Footer ===== */
.site-footer {
  background: var(--primary);
  color: rgba(255, 255, 255, 0.7);
  padding: 60px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}

.footer-brand h3 {
  font-size: 24px;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 14px;
}

.footer-brand h3 span {
  color: var(--accent);
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.55);
  max-width: 320px;
}

.footer-links h4,
.footer-contact h4 {
  font-size: 16px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 18px;
}

.footer-links a {
  display: block;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.55);
  padding: 5px 0;
  transition: var(--transition);
}

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

.footer-contact p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.55);
  padding: 5px 0;
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-contact p i {
  color: var(--accent);
  font-size: 13px;
  width: 18px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 24px;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.35);
}

/* ===== Mobile Tab Bar ===== */
.mobile-tabbar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 200;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--border);
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.06);
  padding-bottom: env(safe-area-inset-bottom);
}

.tab-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 10px 4px 8px;
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 500;
  flex: 1;
  transition: var(--transition);
  position: relative;
}

.tab-item i {
  font-size: 18px;
  transition: var(--transition);
}

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

.tab-item.active {
  color: var(--accent);
}

.tab-item.active i {
  transform: scale(1.1);
}

.tab-item.active::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 20%;
  right: 20%;
  height: 3px;
  border-radius: 0 0 6px 6px;
  background: linear-gradient(90deg, var(--accent), var(--accent-hover));
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  :root {
    --spacing: 60px;
  }

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

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

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

  .nav-links a {
    padding: 10px 12px;
    font-size: 14px;
  }
}

@media (max-width: 768px) {
  .desktop-nav {
    display: none !important;
  }

  .nav-cta {
    display: none;
  }

  body {
    padding-bottom: 68px;
  }

  .mobile-tabbar {
    display: flex;
  }

  .hero {
    min-height: auto;
  }

  .hero-content {
    padding-top: 60px;
    padding-bottom: 60px;
  }

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

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

  .hero-mini-stats {
    gap: 24px;
  }

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

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

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

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .cta-box {
    padding: 48px 24px;
  }

  .cta-box h2 {
    font-size: 26px;
  }

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

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

  .section-head h2 {
    font-size: 28px;
  }

  .section-head p {
    font-size: 15px;
  }
}

@media (max-width: 520px) {
  :root {
    --spacing: 48px;
  }

  .hero-content h1 {
    font-size: 32px;
    letter-spacing: 1px;
  }

  .hero-content p {
    font-size: 14px;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

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

  .hero-mini-stats {
    gap: 16px;
    flex-wrap: wrap;
  }

  .hero-mini-stats > div {
    min-width: 80px;
  }

  .hero-mini-stats strong {
    font-size: 24px;
  }

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

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

  .stat-item strong {
    font-size: 28px;
  }

  .stat-item span {
    font-size: 13px;
  }

  .cta-box {
    padding: 40px 20px;
  }

  .cta-box h2 {
    font-size: 22px;
  }

  .logo-text {
    font-size: 20px;
  }

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

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

@media (min-width: 769px) {
  .mobile-tabbar {
    display: none !important;
  }
}

/* roulang page: article */
:root {
            --primary: #4f46e5;
            --primary-dark: #4338ca;
            --accent: #f59e0b;
            --ink: #1e1b4b;
            --muted: #64748b;
            --soft: #f8fafc;
            --border: #e2e8f0;
            --radius: 16px;
            --shadow: 0 10px 30px -10px rgba(30, 27, 75, 0.1);
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            background: #ffffff;
            color: var(--ink);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.7);
        }
        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
            gap: 24px;
        }
        .logo-text {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--ink);
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .logo-text i {
            color: var(--primary);
            font-size: 1.3rem;
        }
        .logo-text span {
            color: var(--accent);
        }
        .desktop-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
            justify-content: center;
        }
        .desktop-nav a {
            padding: 8px 16px;
            border-radius: 10px;
            font-weight: 500;
            color: var(--ink);
            transition: background 0.2s, color 0.2s;
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.95rem;
        }
        .desktop-nav a i {
            font-size: 0.85rem;
            color: var(--muted);
            transition: color 0.2s;
        }
        .desktop-nav a:hover {
            background: var(--soft);
            color: var(--primary);
        }
        .desktop-nav a:hover i {
            color: var(--primary);
        }
        .desktop-nav a.active {
            background: rgba(79, 70, 229, 0.08);
            color: var(--primary);
            font-weight: 600;
        }
        .desktop-nav a.active i {
            color: var(--primary);
        }
        .nav-cta {
            flex-shrink: 0;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            border-radius: 12px;
            font-weight: 600;
            transition: all 0.25s;
            border: 2px solid transparent;
            font-size: 0.95rem;
            cursor: pointer;
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.25);
        }
        .btn-accent:hover {
            background: #d97706;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(245, 158, 11, 0.3);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: rgba(79, 70, 229, 0.3);
        }
        .btn-outline:hover {
            background: rgba(79, 70, 229, 0.05);
            border-color: var(--primary);
        }
        /* Mobile Bottom Tab */
        .mobile-tabbar {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: #fff;
            border-top: 1px solid var(--border);
            z-index: 100;
            padding-bottom: env(safe-area-inset-bottom);
        }
        .mobile-tabbar .tabbar-inner {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            height: 64px;
        }
        .mobile-tabbar a {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 4px;
            font-size: 0.75rem;
            color: var(--muted);
            transition: color 0.2s;
            border-top: 2px solid transparent;
        }
        .mobile-tabbar a i {
            font-size: 1.2rem;
        }
        .mobile-tabbar a.active {
            color: var(--primary);
            border-top-color: var(--primary);
            font-weight: 600;
        }
        /* Article */
        .article-hero {
            background: linear-gradient(135deg, rgba(30, 27, 75, 0.92), rgba(79, 70, 229, 0.85)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            padding: 80px 0 100px;
            color: #fff;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
            margin-bottom: 24px;
        }
        .article-badge {
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(8px);
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 0.85rem;
            font-weight: 500;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }
        .article-date {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.8);
        }
        .article-content {
            background: #fff;
            border-radius: 16px;
            box-shadow: var(--shadow);
            padding: 48px;
            margin-top: 48px;
            position: relative;
            z-index: 2;
        }
        .article-content h2 {
            font-size: 1.5rem;
            font-weight: 700;
            margin: 32px 0 16px;
            color: var(--ink);
        }
        .article-content h3 {
            font-size: 1.2rem;
            font-weight: 600;
            margin: 24px 0 12px;
            color: var(--ink);
        }
        .article-content p {
            margin-bottom: 16px;
            color: #475569;
            line-height: 1.8;
        }
        .article-content ul {
            margin: 16px 0;
            padding-left: 20px;
        }
        .article-content li {
            margin-bottom: 8px;
            color: #475569;
        }
        .article-content img {
            border-radius: 12px;
            margin: 24px 0;
        }
        .article-not-found {
            text-align: center;
            padding: 60px 0;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 32px;
        }
        .related-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 14px;
            padding: 24px;
            transition: all 0.25s;
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow);
            border-color: rgba(79, 70, 229, 0.2);
        }
        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, #1e1b4b, #312e81);
            border-radius: 24px;
            padding: 56px;
            position: relative;
            overflow: hidden;
            margin: 80px 0;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.2), transparent 70%);
        }
        /* FAQ */
        .faq-item {
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 20px 24px;
            margin-bottom: 12px;
            background: #fff;
            transition: all 0.2s;
        }
        .faq-item:hover {
            border-color: rgba(79, 70, 229, 0.3);
        }
        .faq-item summary {
            font-weight: 600;
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
        }
        .faq-item summary::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 0.8rem;
            color: var(--muted);
            transition: transform 0.2s;
        }
        .faq-item[open] summary::after {
            transform: rotate(180deg);
        }
        .faq-item p {
            margin-top: 12px;
            color: var(--muted);
        }
        /* Footer */
        .site-footer {
            background: #0f172a;
            color: #94a3b8;
            padding-top: 64px;
            margin-top: 80px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.5fr;
            gap: 48px;
            padding-bottom: 48px;
        }
        .footer-brand h3 {
            color: #fff;
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .footer-brand h3 span {
            color: var(--accent);
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 360px;
        }
        .footer-links h4,
        .footer-contact h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 20px;
        }
        .footer-links a {
            display: block;
            padding: 6px 0;
            transition: color 0.2s;
            font-size: 0.9rem;
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        .footer-contact p {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.9rem;
            padding: 6px 0;
        }
        .footer-contact i {
            color: var(--accent);
            width: 16px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 24px 0;
            text-align: center;
            font-size: 0.85rem;
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .desktop-nav {
                gap: 4px;
            }
            .desktop-nav a {
                padding: 8px 12px;
                font-size: 0.88rem;
            }
        }
        @media (max-width: 768px) {
            .site-header {
                position: sticky;
            }
            .desktop-nav {
                display: none;
            }
            .nav-cta {
                display: none;
            }
            .mobile-tabbar {
                display: block;
            }
            .nav-wrap {
                height: 64px;
            }
            .logo-text {
                font-size: 1.25rem;
            }
            .article-hero {
                padding: 48px 0 72px;
            }
            .article-content {
                padding: 32px 20px;
                margin-top: 32px;
                border-radius: 12px;
            }
            .related-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .cta-section {
                padding: 32px 24px;
                border-radius: 16px;
                margin: 48px 0;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            body {
                padding-bottom: 64px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .logo-text {
                font-size: 1.1rem;
            }
            .article-date {
                font-size: 0.8rem;
            }
            .article-meta {
                gap: 10px;
            }
        }

/* roulang page: category1 */
:root {
    --brand: #0052d9;
    --brand-dark: #003a9b;
    --brand-light: #e8f0ff;
    --accent: #ff6a00;
    --accent-dark: #e05500;
    --accent-light: #fff3e8;
    --bg: #f5f7fb;
    --text: #1e293b;
    --text-weak: #64748b;
    --border: #e2e8f0;
    --radius: 16px;
    --radius-sm: 10px;
    --shadow-sm: 0 2px 8px rgba(30, 41, 59, .06);
    --shadow: 0 8px 30px rgba(30, 41, 59, .08);
    --shadow-lg: 0 16px 50px rgba(30, 41, 59, .12);
    --container: 1200px;
    --gap: 24px;
  }

  * { box-sizing: border-box; margin: 0; padding: 0; }
  html { scroll-behavior: smooth; }
  body { font-family: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif; background: var(--bg); color: var(--text); line-height: 1.7; -webkit-font-smoothing: antialiased; padding-bottom: 68px; }
  img { max-width: 100%; display: block; }
  a { text-decoration: none; color: inherit; transition: all .3s ease; }
  a:focus-visible, button:focus-visible { outline: 3px solid rgba(0, 82, 217, .35); outline-offset: 2px; border-radius: 6px; }
  .container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

  .site-header {
    background: rgba(255, 255, 255, .92);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
  }

  .nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 74px; gap: 16px; }

  .logo-text {
    font-size: 26px;
    font-weight: 800;
    color: var(--brand);
    display: flex;
    align-items: center;
    gap: 8px;
    letter-spacing: -0.5px;
    white-space: nowrap;
  }
  .logo-text i { color: var(--accent); font-size: 22px; }
  .logo-text span { color: var(--accent); }

  .nav-links { display: flex; align-items: center; gap: 6px; }
  .nav-links a {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 10px 18px;
    border-radius: 999px;
    font-weight: 600;
    font-size: 15px;
    color: var(--text);
    transition: all .3s ease;
  }
  .nav-links a i { font-size: 15px; opacity: .75; }
  .nav-links a:hover { background: var(--brand-light); color: var(--brand); transform: translateY(-1px); }
  .nav-links a.active { background: var(--brand); color: #fff; box-shadow: 0 4px 14px rgba(0, 82, 217, .28); }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 26px;
    border-radius: 999px;
    font-weight: 700;
    font-size: 15px;
    line-height: 1;
    border: none;
    cursor: pointer;
    transition: all .3s ease;
  }
  .btn-accent {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 6px 20px rgba(255, 106, 0, .28);
  }
  .btn-accent:hover { background: var(--accent-dark); transform: translateY(-2px); box-shadow: 0 10px 28px rgba(255, 106, 0, .35); }
  .btn-brand {
    background: var(--brand);
    color: #fff;
    box-shadow: 0 6px 20px rgba(0, 82, 217, .25);
  }
  .btn-brand:hover { background: var(--brand-dark); transform: translateY(-2px); box-shadow: 0 10px 28px rgba(0, 82, 217, .32); }
  .btn-outline {
    background: transparent;
    color: var(--brand);
    border: 2px solid var(--brand);
  }
  .btn-outline:hover { background: var(--brand-light); transform: translateY(-2px); }
  .btn-lg { padding: 16px 40px; font-size: 17px; }

  .nav-cta { padding: 10px 22px; font-size: 14px; margin-left: 4px; }

  .page-hero {
    background-size: cover;
    background-position: center;
    position: relative;
    padding: 110px 0 90px;
    overflow: hidden;
  }
  .page-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(100deg, rgba(0, 18, 48, .78) 0%, rgba(0, 82, 217, .55) 64%, rgba(0, 40, 100, .35) 100%);
    z-index: 1;
  }
  .page-hero .container { position: relative; z-index: 2; }
  .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    border-radius: 999px;
    background: rgba(255, 255, 255, .14);
    border: 1px solid rgba(255, 255, 255, .3);
    backdrop-filter: blur(8px);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: .5px;
    margin-bottom: 24px;
  }
  .hero-badge i { color: var(--accent); }
  .page-hero h1 {
    font-size: clamp(36px, 5vw, 56px);
    font-weight: 900;
    color: #fff;
    line-height: 1.18;
    margin-bottom: 20px;
    letter-spacing: -1px;
  }
  .page-hero h1 span { color: #ffb785; }
  .page-hero p {
    font-size: clamp(16px, 2vw, 19px);
    color: rgba(255, 255, 255, .9);
    max-width: 620px;
    margin-bottom: 36px;
    line-height: 1.8;
  }
  .hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

  .hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 56px;
    max-width: 580px;
  }
  .hero-stat {
    background: rgba(255, 255, 255, .12);
    border: 1px solid rgba(255, 255, 255, .22);
    backdrop-filter: blur(8px);
    border-radius: 14px;
    padding: 16px 20px;
    color: #fff;
  }
  .hero-stat strong { font-size: 22px; font-weight: 800; display: block; }
  .hero-stat span { font-size: 13px; opacity: .85; }

  .section-main { padding: 90px 0; }
  .section-head { text-align: center; max-width: 680px; margin: 0 auto 56px; }
  .section-head .tag {
    display: inline-block;
    padding: 6px 16px;
    background: var(--brand-light);
    color: var(--brand);
    border-radius: 999px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: .5px;
    margin-bottom: 14px;
  }
  .section-head h2 { font-size: clamp(28px, 3.5vw, 38px); font-weight: 800; letter-spacing: -0.5px; color: var(--text); }
  .section-head p { color: var(--text-weak); margin-top: 12px; font-size: 16px; }

  .entry-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap); }
  .entry-card {
    background: #fff;
    border-radius: var(--radius);
    padding: 36px 30px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: all .35s ease;
    position: relative;
    overflow: hidden;
  }
  .entry-card::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--brand), var(--accent));
    opacity: 0;
    transition: all .3s ease;
  }
  .entry-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
  .entry-card:hover::after { opacity: 1; }
  .entry-card .icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 22px;
    background: linear-gradient(135deg, var(--brand-light), #fff);
    color: var(--brand);
  }
  .entry-card:nth-child(2) .icon { background: linear-gradient(135deg, var(--accent-light), #fff); color: var(--accent); }
  .entry-card:nth-child(3) .icon { background: linear-gradient(135deg, #e8fcf3, #fff); color: #0aa06e; }
  .entry-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 10px; }
  .entry-card p { color: var(--text-weak); font-size: 15px; line-height: 1.75; }
  .entry-card .card-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 18px;
    color: var(--brand);
    font-weight: 600;
    font-size: 14px;
  }
  .entry-card .card-link i { transition: transform .3s ease; }
  .entry-card:hover .card-link i { transform: translateX(4px); }

  .steps-section { background: linear-gradient(180deg, var(--bg) 0%, #fff 100%); }
  .steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
  .step-item {
    background: #fff;
    border-radius: var(--radius);
    padding: 32px 24px;
    text-align: center;
    border: 1px solid var(--border);
    position: relative;
    transition: all .3s ease;
  }
  .step-item:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
  .step-num {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--brand);
    color: #fff;
    font-weight: 800;
    font-size: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 18px;
    box-shadow: 0 6px 16px rgba(0, 82, 217, .28);
  }
  .step-item:nth-child(2) .step-num { background: var(--accent); box-shadow: 0 6px 16px rgba(255, 106, 0, .28); }
  .step-item:nth-child(3) .step-num { background: #0aa06e; box-shadow: 0 6px 16px rgba(10, 160, 110, .28); }
  .step-item:nth-child(4) .step-num { background: #7c3aed; box-shadow: 0 6px 16px rgba(124, 58, 237, .28); }
  .step-item h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
  .step-item p { color: var(--text-weak); font-size: 14px; line-height: 1.7; }

  .security-section { background: #0f1e3c; color: #fff; position: relative; overflow: hidden; }
  .security-section::before {
    content: "";
    position: absolute;
    right: -80px;
    top: -80px;
    width: 280px;
    height: 280px;
    border-radius: 50%;
    background: rgba(0, 82, 217, .3);
    filter: blur(60px);
  }
  .security-section .section-head h2 { color: #fff; }
  .security-section .section-head p { color: rgba(255, 255, 255, .65); }
  .security-section .section-head .tag { background: rgba(255, 255, 255, .12); color: #fff; }
  .security-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
  .security-item {
    background: rgba(255, 255, 255, .07);
    border: 1px solid rgba(255, 255, 255, .12);
    border-radius: 16px;
    padding: 28px 24px;
    backdrop-filter: blur(10px);
    transition: all .3s ease;
  }
  .security-item:hover { background: rgba(255, 255, 255, .12); transform: translateY(-4px); }
  .security-item i { font-size: 28px; color: var(--accent); margin-bottom: 16px; display: block; }
  .security-item h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
  .security-item p { color: rgba(255, 255, 255, .7); font-size: 14px; line-height: 1.7; }

  .news-list { max-width: 900px; margin: 0 auto; }
  .news-item {
    display: flex;
    gap: 24px;
    background: #fff;
    border-radius: var(--radius);
    padding: 20px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    margin-bottom: 24px;
    transition: all .3s ease;
    align-items: center;
  }
  .news-item:hover { box-shadow: var(--shadow); transform: translateX(6px); }
  .news-item img { width: 200px; height: 140px; object-fit: cover; border-radius: 12px; flex-shrink: 0; }
  .news-content { flex: 1; }
  .news-content .tag { display: inline-block; font-size: 12px; font-weight: 700; color: var(--brand); background: var(--brand-light); padding: 4px 12px; border-radius: 999px; margin-bottom: 10px; }
  .news-content h3 { font-size: 18px; font-weight: 700; margin-bottom: 6px; line-height: 1.4; }
  .news-content p { color: var(--text-weak); font-size: 14px; line-height: 1.7; margin-bottom: 10px; }
  .news-meta { display: flex; gap: 16px; font-size: 13px; color: #94a3b8; }
  .news-meta i { margin-right: 4px; }

  .faq-section { background: #fff; }
  .faq-wrap { max-width: 860px; margin: 0 auto; }
  .faq-item {
    border: 1px solid var(--border);
    border-radius: 14px;
    margin-bottom: 14px;
    background: #fff;
    transition: all .3s ease;
    overflow: hidden;
  }
  .faq-item:hover { border-color: var(--brand); box-shadow: var(--shadow-sm); }
  .faq-item summary {
    padding: 22px 28px;
    font-size: 17px;
    font-weight: 600;
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 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(--brand);
    transition: transform .3s ease;
    flex-shrink: 0;
  }
  .faq-item[open] summary::after { transform: rotate(180deg); }
  .faq-item .faq-body { padding: 0 28px 22px; color: var(--text-weak); line-height: 1.8; font-size: 15px; }

  .cta-section { padding: 100px 0; background: url('/assets/images/backpic/back-2.png') center/cover fixed; position: relative; }
  .cta-section::before { content: ""; position: absolute; inset: 0; background: rgba(0, 20, 50, .82); }
  .cta-box { position: relative; z-index: 1; text-align: center; max-width: 700px; margin: 0 auto; color: #fff; }
  .cta-box h2 { font-size: clamp(28px, 3.5vw, 40px); font-weight: 800; margin-bottom: 16px; }
  .cta-box p { color: rgba(255, 255, 255, .8); font-size: 17px; margin-bottom: 32px; }
  .cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

  .site-footer { background: #0f1e3c; color: rgba(255, 255, 255, .8); padding: 70px 0 24px; }
  .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1.2fr; gap: 48px; margin-bottom: 42px; }
  .footer-brand h3 { font-size: 26px; font-weight: 800; color: #fff; margin-bottom: 14px; }
  .footer-brand h3 span { color: var(--accent); }
  .footer-brand p { font-size: 14px; line-height: 1.8; color: rgba(255, 255, 255, .6); }
  .footer-links h4, .footer-contact h4 { color: #fff; font-size: 17px; font-weight: 700; margin-bottom: 16px; }
  .footer-links a { display: block; padding: 6px 0; color: rgba(255, 255, 255, .6); font-size: 14px; transition: all .3s ease; }
  .footer-links a:hover { color: var(--accent); transform: translateX(4px); }
  .footer-contact p { display: flex; align-items: center; gap: 10px; color: rgba(255, 255, 255, .6); font-size: 14px; margin-bottom: 10px; }
  .footer-contact i { color: var(--accent); width: 18px; text-align: center; }
  .footer-bottom { border-top: 1px solid rgba(255, 255, 255, .1); padding-top: 22px; text-align: center; font-size: 14px; color: rgba(255, 255, 255, .45); }

  .mobile-tabbar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, .96);
    backdrop-filter: blur(16px);
    border-top: 1px solid var(--border);
    display: none;
    z-index: 200;
    padding: 6px 10px calc(6px + env(safe-area-inset-bottom));
    justify-content: space-around;
  }
  .tab-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 8px 14px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-weak);
    transition: all .3s ease;
  }
  .tab-item i { font-size: 18px; }
  .tab-item:hover { color: var(--brand); background: var(--brand-light); }
  .tab-item.active { color: var(--brand); background: var(--brand-light); }
  .tab-item.active i { transform: scale(1.08); }

  @media (max-width: 1024px) {
    .nav-wrap { gap: 10px; }
    .nav-links a { padding: 9px 14px; font-size: 14px; }
    .nav-cta { display: none; }
    .entry-cards { gap: 16px; }
    .entry-card { padding: 28px 22px; }
    .steps-grid { grid-template-columns: repeat(2, 1fr); }
    .security-grid { grid-template-columns: repeat(2, 1fr); }
    .site-header .nav-cta { display: none; }
  }

  @media (max-width: 768px) {
    body { padding-bottom: 0; }
    .desktop-nav { display: flex; overflow-x: auto; gap: 2px; -webkit-overflow-scrolling: touch; }
    .desktop-nav a { white-space: nowrap; padding: 8px 12px; font-size: 13px; }
    .desktop-nav a i { display: none; }
    .mobile-tabbar { display: flex; }
    .site-header { position: sticky; }
    .nav-wrap { height: 62px; }
    .logo-text { font-size: 22px; }
    .page-hero { padding: 70px 0 56px; }
    .page-hero h1 { font-size: 34px; }
    .hero-actions .btn { width: 48%; justify-content: center; }
    .hero-actions .btn-lg { padding: 14px 20px; font-size: 15px; }
    .hero-stats { grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 36px; }
    .hero-stat { padding: 12px 14px; text-align: center; }
    .hero-stat strong { font-size: 18px; }
    .section-main { padding: 60px 0; }
    .entry-cards { grid-template-columns: 1fr; }
    .steps-grid { grid-template-columns: 1fr 1fr; }
    .security-grid { grid-template-columns: 1fr; }
    .news-item { flex-direction: column; gap: 14px; }
    .news-item img { width: 100%; height: 190px; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .site-footer { padding: 50px 0 20px; }
    .footer-bottom { padding-bottom: 20px; }
  }

  @media (max-width: 520px) {
    .container { padding: 0 16px; }
    .logo-text { font-size: 19px; }
    .logo-text i { font-size: 17px; }
    .desktop-nav a { font-size: 12px; padding: 7px 10px; }
    .page-hero h1 { font-size: 28px; }
    .page-hero p { font-size: 15px; }
    .hero-actions .btn { width: 100%; }
    .hero-stats { grid-template-columns: 1fr; }
    .hero-stat { text-align: left; }
    .section-head h2 { font-size: 26px; }
    .steps-grid { grid-template-columns: 1fr; }
    .entry-card { padding: 24px 18px; }
    .steps-grid .step-item { padding: 24px 18px; }
    .section-head { margin-bottom: 36px; }
    .faq-item summary { padding: 18px 18px; font-size: 16px; }
    .faq-item .faq-body { padding: 0 18px 18px; font-size: 14px; }
    .cta-section { padding: 60px 0; background-attachment: scroll; }
    .cta-buttons .btn { width: 100%; }
    .news-item img { height: 160px; }
  }

/* roulang page: category2 */
:root {
    --primary: #14213d;
    --primary-light: #233452;
    --accent: #f0b90b;
    --accent-hover: #d4a106;
    --bg-light: #f6f8fc;
    --bg-white: #ffffff;
    --text-main: #1a2233;
    --text-muted: #6c7686;
    --border: #e5e8f0;
    --radius: 16px;
    --radius-lg: 24px;
    --radius-sm: 10px;
    --shadow-sm: 0 2px 8px rgba(20, 33, 61, 0.06);
    --shadow-lg: 0 12px 32px rgba(20, 33, 61, 0.12);
    --font-base: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  }

  *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
  html { scroll-behavior: smooth; }
  body {
    font-family: var(--font-base);
    color: var(--text-main);
    background: var(--bg-light);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
  }
  img { max-width: 100%; display: block; }
  a { color: inherit; text-decoration: none; }
  button { font-family: inherit; border: none; background: none; cursor: pointer; }
  input, select, textarea { font-family: inherit; }
  :focus-visible { outline: 3px solid rgba(240, 185, 11, 0.45); outline-offset: 2px; border-radius: 4px; }

  .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

  /* ===== Header ===== */
  .site-header {
    position: sticky; top: 0; z-index: 50;
    background: rgba(20, 33, 61, 0.96);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 4px 24px rgba(20, 33, 61, 0.18);
  }
  .nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 74px; gap: 20px; }
  .logo-text {
    font-size: 24px; font-weight: 800; color: #ffffff;
    display: inline-flex; align-items: center; gap: 8px;
    letter-spacing: 0.5px; white-space: nowrap;
  }
  .logo-text i { color: var(--accent); font-size: 22px; }
  .logo-text span { color: var(--accent); font-weight: 700; }
  .nav-links { display: flex; align-items: center; gap: 6px; }
  .nav-links a {
    color: rgba(255, 255, 255, 0.72); padding: 9px 15px;
    border-radius: var(--radius-sm); font-size: 15px; font-weight: 500;
    transition: all 0.25s ease; display: inline-flex; align-items: center; gap: 6px;
  }
  .nav-links a i { font-size: 14px; opacity: 0.8; }
  .nav-links a:hover { color: #fff; background: rgba(255, 255, 255, 0.1); transform: translateY(-1px); }
  .nav-links a.active { color: var(--accent); background: rgba(240, 185, 11, 0.13); font-weight: 600; }

  .btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 10px 22px; border-radius: 14px; font-size: 15px; font-weight: 600;
    transition: all 0.25s ease; cursor: pointer; text-align: center; white-space: nowrap;
  }
  .btn-accent {
    background: linear-gradient(135deg, #f5c531, #eaa008);
    color: var(--primary);
    box-shadow: 0 4px 16px rgba(240, 185, 11, 0.35);
  }
  .btn-accent:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(240, 185, 11, 0.45); color: var(--primary); }
  .btn-accent:active { transform: translateY(0); box-shadow: 0 4px 12px rgba(240, 185, 11, 0.3); }
  .btn-outline {
    border: 1.5px solid rgba(255, 255, 255, 0.55);
    color: #ffffff; background: rgba(255, 255, 255, 0.06);
  }
  .btn-outline:hover { background: rgba(255, 255, 255, 0.16); border-color: #fff; transform: translateY(-2px); }
  .btn-ghost {
    border: 1.5px solid var(--border);
    color: var(--primary); background: var(--bg-white);
  }
  .btn-ghost:hover { border-color: var(--accent); color: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 6px 18px rgba(20,33,61,0.06); }

  .nav-cta { padding: 9px 18px; font-size: 14px; border-radius: 12px; }
  .nav-cta i { font-size: 13px; }

  /* ===== Page Banner ===== */
  .page-banner {
    position: relative;
    background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
    padding: 96px 0 88px;
    overflow: hidden;
  }
  .page-banner::before {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(120deg, rgba(20,33,61,0.94) 20%, rgba(20,33,61,0.72) 60%, rgba(20,33,61,0.5));
  }
  .page-banner .banner-content { position: relative; z-index: 2; max-width: 720px; }
  .banner-badge {
    display: inline-flex; align-items: center; gap: 8px;
    background: rgba(240, 185, 11, 0.16);
    border: 1px solid rgba(240, 185, 11, 0.4);
    color: #ffd75e; font-size: 13px; font-weight: 600;
    padding: 7px 16px; border-radius: 999px; margin-bottom: 18px;
  }
  .page-banner h1 {
    font-size: clamp(30px, 4.5vw, 46px);
    line-height: 1.25; font-weight: 800; color: #fff;
    letter-spacing: 1px; margin-bottom: 16px;
  }
  .page-banner h1 i { color: var(--accent); font-style: normal; }
  .page-banner p {
    color: rgba(255, 255, 255, 0.85); font-size: 17px;
    line-height: 1.8; margin-bottom: 28px; max-width: 560px;
  }
  .banner-actions { display: flex; flex-wrap: wrap; gap: 14px; }
  .breadcrumb-line {
    position: relative; z-index: 2; margin-top: 40px;
    display: flex; align-items: center; gap: 8px;
    color: rgba(255, 255, 255, 0.6); font-size: 14px;
  }
  .breadcrumb-line a { color: rgba(255,255,255,0.75); transition: color .2s; }
  .breadcrumb-line a:hover { color: var(--accent); }
  .breadcrumb-line .sep { opacity: 0.5; }

  /* ===== Sections ===== */
  .section-pad { padding: 84px 0; }
  .section-alt { background: var(--bg-white); }
  .section-head { max-width: 720px; margin: 0 auto 48px; text-align: center; }
  .section-head .tag-line {
    display: inline-flex; align-items: center; gap: 8px;
    color: var(--accent-hover); font-size: 14px; font-weight: 700;
    letter-spacing: 2px; text-transform: uppercase; margin-bottom: 10px;
  }
  .section-head h2 {
    font-size: clamp(26px, 3.2vw, 36px); font-weight: 800;
    color: var(--primary); line-height: 1.3; margin-bottom: 14px;
  }
  .section-head p { color: var(--text-muted); font-size: 16px; line-height: 1.8; }
  .section-head .head-line {
    width: 56px; height: 4px; border-radius: 99px;
    background: linear-gradient(90deg, var(--accent), #ffd75e);
    margin: 16px auto 0;
  }

  /* ===== Filter ===== */
  .news-filter { display: flex; justify-content: center; flex-wrap: wrap; gap: 10px; margin-bottom: 36px; }
  .filter-btn {
    padding: 9px 22px; border-radius: 999px; background: #fff;
    border: 1px solid var(--border); color: var(--text-muted);
    font-size: 14px; font-weight: 600; transition: all 0.25s ease;
  }
  .filter-btn:hover { border-color: var(--accent); color: var(--accent-hover); transform: translateY(-2px); }
  .filter-btn.active { background: var(--primary); color: var(--accent); border-color: var(--primary); box-shadow: 0 6px 16px rgba(20,33,61,0.18); }

  /* ===== Featured ===== */
  .featured-card {
    background: #fff; border-radius: var(--radius-lg); overflow: hidden;
    display: grid; grid-template-columns: 1.05fr 1fr;
    box-shadow: var(--shadow-sm); border: 1px solid var(--border);
    transition: box-shadow .3s ease;
  }
  .featured-card:hover { box-shadow: var(--shadow-lg); }
  .featured-media { position: relative; min-height: 320px; overflow: hidden; }
  .featured-media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
  .featured-card:hover .featured-media img { transform: scale(1.04); }
  .featured-media::after { content:''; position:absolute; inset:0; background: linear-gradient(to top, rgba(20,33,61,0.25), transparent); }
  .featured-body { padding: 38px 36px; display: flex; flex-direction: column; justify-content: center; }
  .card-badges { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 14px; }

  .badge {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 5px 13px; border-radius: 999px; font-size: 12px; font-weight: 600; line-height: 1.5;
  }
  .badge-gold { background: rgba(240,185,11,.14); color: #a8720a; }
  .badge-blue { background: rgba(20,33,61,.08); color: var(--primary); }
  .badge-green { background: rgba(16,185,129,.12); color: #0b8a63; }
  .badge-red { background: rgba(239,68,68,.1); color: #c0392b; }

  .featured-body h3 { font-size: 23px; font-weight: 800; color: var(--primary); line-height: 1.45; margin-bottom: 12px; }
  .featured-body p { color: var(--text-muted); font-size: 15px; line-height: 1.8; margin-bottom: 22px; }
  .meta-row { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; color: var(--text-muted); font-size: 13px; }
  .meta-row i { color: var(--accent-hover); margin-right: 4px; }

  /* ===== News Grid ===== */
  .news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
  .news-card {
    background: #fff; border-radius: var(--radius); overflow: hidden;
    border: 1px solid var(--border); box-shadow: var(--shadow-sm);
    transition: transform .3s ease, box-shadow .3s ease;
    display: flex; flex-direction: column;
  }
  .news-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
  .news-thumb { position: relative; aspect-ratio: 16 / 10; overflow: hidden; }
  .news-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .45s ease; }
  .news-card:hover .news-thumb img { transform: scale(1.06); }
  .news-thumb .badge { position: absolute; top: 14px; left: 14px; z-index: 2; background: rgba(255,255,255,.94); }
  .news-body { padding: 22px 22px 26px; display: flex; flex-direction: column; flex: 1; }
  .news-body h3 { font-size: 17px; font-weight: 700; color: var(--primary); line-height: 1.5; margin-bottom: 10px; transition: color .2s; }
  .news-card:hover .news-body h3 { color: var(--accent-hover); }
  .news-body p { color: var(--text-muted); font-size: 14px; line-height: 1.75; margin-bottom: 16px; flex: 1; }
  .news-meta { display: flex; justify-content: space-between; align-items: center; color: var(--text-muted); font-size: 13px; border-top: 1px dashed var(--border); padding-top: 14px; }

  /* ===== Timeline ===== */
  .timeline-wrap { max-width: 860px; margin: 0 auto; }
  .news-timeline { position: relative; padding-left: 42px; }
  .news-timeline::before {
    content: ''; position: absolute; left: 11px; top: 6px; bottom: 6px;
    width: 3px; border-radius: 99px;
    background: linear-gradient(to bottom, var(--accent), rgba(240,185,11,.2));
  }
  .timeline-item { position: relative; padding-bottom: 34px; }
  .timeline-item:last-child { padding-bottom: 0; }
  .timeline-item::before {
    content: ''; position: absolute; left: -36px; top: 6px;
    width: 15px; height: 15px; border-radius: 50%;
    background: var(--accent); border: 3px solid #fff;
    box-shadow: 0 0 0 3px rgba(240,185,11,.35), 0 4px 12px rgba(240,185,11,.25);
  }
  .timeline-card {
    background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
    padding: 22px 26px; transition: all .3s ease; box-shadow: var(--shadow-sm);
  }
  .timeline-card:hover { box-shadow: var(--shadow-lg); transform: translateX(6px); }
  .timeline-date { color: var(--accent-hover); font-size: 13px; font-weight: 700; letter-spacing: 1px; display: flex; align-items: center; gap: 6px; margin-bottom: 6px; }
  .timeline-card h4 { font-size: 17px; font-weight: 700; color: var(--primary); margin-bottom: 6px; }
  .timeline-card p { color: var(--text-muted); font-size: 14px; line-height: 1.75; }

  /* ===== Stats ===== */
  .stats-banner {
    background: linear-gradient(120deg, var(--primary), #1e3358);
    border-radius: var(--radius-lg);
    padding: 48px 40px;
  }
  .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
  .stat-card { background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12); border-radius: 18px; padding: 30px 18px; text-align: center; transition: all .3s ease; }
  .stat-card:hover { background: rgba(255,255,255,.1); transform: translateY(-4px); }
  .stat-num { font-size: 40px; font-weight: 800; color: var(--accent); line-height: 1.2; }
  .stat-label { color: rgba(255,255,255,.75); font-size: 14px; margin-top: 8px; }
  .stat-icon { color: rgba(255,255,255,.35); font-size: 26px; margin-bottom: 10px; }

  /* ===== FAQ ===== */
  .faq-list { max-width: 840px; margin: 0 auto; display: flex; flex-direction: column; gap: 16px; }
  .faq-item {
    background: #fff; border-radius: var(--radius);
    border: 1px solid var(--border); overflow: hidden;
    transition: all .3s ease;
  }
  .faq-item.open { border-color: var(--accent); box-shadow: 0 8px 24px rgba(240,185,11,.1); }
  .faq-question {
    padding: 22px 26px; display: flex; align-items: center; justify-content: space-between;
    gap: 16px; font-size: 16px; font-weight: 700; color: var(--primary); cursor: pointer;
    transition: background .2s;
  }
  .faq-question:hover { background: rgba(240,185,11,.04); }
  .faq-question .faq-icon { color: var(--accent); font-size: 18px; flex-shrink: 0; transition: transform .35s ease; }
  .faq-item.open .faq-icon { transform: rotate(180deg); }
  .faq-answer { max-height: 0; overflow: hidden; transition: max-height .4s ease, padding .3s ease; padding: 0 26px; color: var(--text-muted); font-size: 14.5px; line-height: 1.85; }
  .faq-item.open .faq-answer { max-height: 320px; padding-bottom: 22px; }

  /* ===== CTA ===== */
  .cta-section {
    background: linear-gradient(135deg, #f0b90b, #ffd75e);
    border-radius: var(--radius-lg);
    padding: 52px 48px;
    position: relative; overflow: hidden;
  }
  .cta-section::after {
    content: ''; position: absolute; right: -60px; top: -60px;
    width: 220px; height: 220px; border-radius: 50%;
    background: rgba(255,255,255,.15);
  }
  .cta-grid { display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap; position: relative; z-index: 2; }
  .cta-text h2 { font-size: 28px; font-weight: 800; color: var(--primary); margin-bottom: 10px; }
  .cta-text p { color: rgba(20,33,61,.75); font-size: 15px; max-width: 560px; }
  .cta-actions { display: flex; gap: 14px; flex-wrap: wrap; }
  .btn-dark { background: var(--primary); color: #fff; box-shadow: 0 6px 18px rgba(20,33,61,.3); }
  .btn-dark:hover { background: #1e3358; transform: translateY(-2px); color: #fff; box-shadow: 0 10px 28px rgba(20,33,61,.36); }

  /* ===== Footer ===== */
  .site-footer { background: #0f1a30; color: rgba(255,255,255,.7); padding: 64px 0 30px; }
  .footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 40px; }
  .footer-brand h3 { font-size: 24px; font-weight: 800; color: #fff; margin-bottom: 14px; }
  .footer-brand h3 span { color: var(--accent); }
  .footer-brand p { font-size: 14px; line-height: 1.85; color: rgba(255,255,255,.6); max-width: 380px; }
  .footer-links h4, .footer-contact h4 { color: #fff; font-size: 15px; font-weight: 700; margin-bottom: 16px; }
  .footer-links a { display: flex; align-items: center; gap: 8px; color: rgba(255,255,255,.6); font-size: 14px; padding: 5px 0; transition: all .25s ease; }
  .footer-links a:hover { color: var(--accent); transform: translateX(4px); }
  .footer-links a i { font-size: 12px; opacity: .6; }
  .footer-contact p { display: flex; align-items: center; gap: 10px; font-size: 14px; color: rgba(255,255,255,.6); margin-bottom: 8px; }
  .footer-contact i { color: var(--accent); width: 18px; }
  .footer-bottom { border-top: 1px solid rgba(255,255,255,.08); margin-top: 42px; padding-top: 20px; text-align: center; font-size: 13px; color: rgba(255,255,255,.4); }

  /* ===== Mobile Tabbar ===== */
  .mobile-tabbar {
    display: none; position: fixed; bottom: 0; left: 0; right: 0; z-index: 100;
    background: rgba(20,33,61,.97); backdrop-filter: blur(12px);
    border-top: 1px solid rgba(255,255,255,.1);
    height: 62px; padding-bottom: env(safe-area-inset-bottom);
  }
  .mobile-tabbar .tabbar-inner { display: flex; height: 100%; }
  .mobile-tabbar .tab-item {
    flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center;
    gap: 3px; color: rgba(255,255,255,.55); font-size: 11px; font-weight: 500;
    transition: all .25s ease; position: relative;
  }
  .mobile-tabbar .tab-item i { font-size: 18px; transition: transform .25s ease; }
  .mobile-tabbar .tab-item:hover { color: #fff; }
  .mobile-tabbar .tab-item:hover i { transform: translateY(-2px); }
  .mobile-tabbar .tab-item.active { color: var(--accent); }
  .mobile-tabbar .tab-item.active::before {
    content: ''; position: absolute; top: 0; left: 50%; transform: translateX(-50%);
    width: 36px; height: 3px; border-radius: 0 0 6px 6px; background: var(--accent);
  }

  /* ===== Media Queries ===== */
  @media (max-width: 1024px) {
    .news-grid { grid-template-columns: repeat(2, 1fr); }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .featured-card { grid-template-columns: 1fr; }
    .featured-media { min-height: 240px; }
    .section-pad { padding: 68px 0; }
  }
  @media (max-width: 900px) {
    .desktop-nav { display: none; }
    .nav-cta { display: none; }
    .mobile-tabbar { display: block; }
    body { padding-bottom: 62px; }
    .nav-wrap { height: 64px; }
    .logo-text { font-size: 21px; }
    .page-banner { padding: 72px 0 64px; }
    .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  }
  @media (max-width: 640px) {
    .news-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .stats-banner { padding: 34px 22px; }
    .cta-section { padding: 36px 26px; }
    .cta-grid { flex-direction: column; align-items: flex-start; }
    .featured-body { padding: 26px 22px; }
    .section-pad { padding: 56px 0; }
    .section-head { margin-bottom: 32px; }
    .news-timeline { padding-left: 32px; }
    .timeline-item::before { left: -29px; width: 12px; height: 12px; }
    .timeline-card { padding: 18px 18px; }
    .page-banner h1 { font-size: 28px; }
    .page-banner p { font-size: 15px; }
    .stat-num { font-size: 30px; }
  }
  @media (max-width: 400px) {
    .stats-grid { grid-template-columns: 1fr; }
    .logo-text { font-size: 19px; }
    .container { padding: 0 16px; }
  }