/* roulang page: index */
:root {
  --brand-900: #050b18;
  --brand-800: #0a1428;
  --brand-700: #0f1e3c;
  --brand-600: #142a52;
  --accent-cyan: #00d2ff;
  --accent-blue: #3b82f6;
  --accent-orange: #ff6b35;
  --accent-purple: #7c5cff;
  --bg-light: #f4f7fb;
  --bg-white: #ffffff;
  --text-main: #16213a;
  --text-body: #45556d;
  --text-muted: #7c8aa0;
  --border-light: #e4eaf2;
  --radius-lg: 22px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --shadow-card: 0 10px 34px rgba(8, 20, 40, 0.08);
  --shadow-hover: 0 18px 48px rgba(8, 20, 40, 0.15);
  --shadow-header: 0 4px 24px rgba(5, 11, 24, 0.18);
  --transition: 0.3s ease;
  --container-w: 1200px;
  --header-h: 74px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-body);
  background: var(--bg-light);
  -webkit-font-smoothing: antialiased;
}

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

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

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

input, textarea {
  font-family: inherit;
}

.container {
  width: 100%;
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 30px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  transition: background 0.3s ease, color 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
  color: #fff;
  box-shadow: 0 8px 26px rgba(0, 210, 255, 0.28);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 34px rgba(0, 210, 255, 0.4);
  background: linear-gradient(135deg, #33dcff, #4f90ff);
}

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

.btn-ghost {
  border: 1.5px solid rgba(255, 255, 255, 0.65);
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(6px);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: #fff;
  transform: translateY(-2px);
}

.btn-light {
  background: #fff;
  color: var(--brand-800);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

.btn-light:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 38px rgba(0, 0, 0, 0.38);
  background: #f0f7ff;
}

.btn-sm {
  padding: 9px 22px;
  font-size: 14px;
}

/* ============ Header ============ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(5, 11, 24, 0.86);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow-header);
}

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

.brand {
  font-size: 21px;
  font-weight: 800;
  color: #fff;
  letter-spacing: 0.5px;
  white-space: nowrap;
  background: linear-gradient(135deg, #fff, var(--accent-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.nav-link {
  display: block;
  padding: 10px 20px;
  border-radius: 40px;
  font-size: 15px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.78);
  transition: color 0.25s ease, background 0.25s ease;
}

.nav-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

.nav-link.active {
  color: #fff;
  background: rgba(0, 210, 255, 0.2);
  box-shadow: inset 0 0 0 1px rgba(0, 210, 255, 0.35);
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 14px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.1);
}

.nav-toggle span {
  width: 20px;
  height: 2px;
  background: #fff;
  border-radius: 4px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

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

.nav-toggle.is-open span:nth-child(2) {
  opacity: 0;
}

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

/* ============ Hero ============ */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  color: #fff;
  overflow: hidden;
  padding: 120px 0 80px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  z-index: -2;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(5, 11, 24, 0.92) 25%, rgba(10, 20, 40, 0.72) 60%, rgba(10, 20, 40, 0.45));
  z-index: -1;
}

.hero-inner {
  max-width: 760px;
}

.hero-badge {
  display: inline-block;
  padding: 8px 22px;
  border-radius: 40px;
  background: rgba(0, 210, 255, 0.15);
  border: 1px solid rgba(0, 210, 255, 0.4);
  color: var(--accent-cyan);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 30px;
}

.hero h1 {
  font-size: 48px;
  line-height: 1.28;
  font-weight: 800;
  color: #fff;
  margin-bottom: 22px;
  letter-spacing: 0.5px;
}

.hero p {
  font-size: 18px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.82);
  max-width: 660px;
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-bottom: 56px;
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
}

.hero-stats > div {
  min-width: 140px;
  padding: 18px 26px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(8px);
  text-align: center;
}

.hero-stats strong {
  display: block;
  font-size: 30px;
  font-weight: 800;
  color: var(--accent-cyan);
  margin-bottom: 4px;
}

.hero-stats span {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.75);
}

/* ============ Section common ============ */
.section {
  padding: 96px 0;
}

.section-head {
  max-width: 720px;
  margin: 0 auto 56px;
  text-align: center;
}

.section-tag {
  display: inline-block;
  padding: 5px 18px;
  border-radius: 30px;
  background: rgba(0, 210, 255, 0.1);
  color: var(--accent-blue);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.section-head h2 {
  font-size: 36px;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.35;
  margin-bottom: 14px;
}

.section-head p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-muted);
}

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

.feature-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 42px 34px;
  box-shadow: var(--shadow-card);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
  overflow: hidden;
}

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

.feature-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-blue));
  opacity: 0.6;
  transition: opacity 0.3s ease;
}

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

.feature-icon {
  width: 64px;
  height: 64px;
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(0, 210, 255, 0.15), rgba(59, 130, 246, 0.15));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin-bottom: 22px;
}

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

.feature-card p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-body);
}

/* ============ Categories ============ */
.categories {
  background: var(--bg-white);
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.category-card {
  display: block;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-light);
  box-shadow: var(--shadow-card);
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}

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

.category-media {
  height: 200px;
  overflow: hidden;
}

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

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

.category-body {
  padding: 28px 28px 30px;
}

.category-body h3 {
  font-size: 21px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 10px;
}

.category-body p {
  font-size: 15px;
  color: var(--text-body);
  line-height: 1.7;
  margin-bottom: 16px;
}

.category-link {
  font-size: 14px;
  font-weight: 700;
  color: var(--accent-blue);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.3s ease;
}

.category-card:hover .category-link {
  gap: 12px;
}

/* ============ News list ============ */
.news-list {
  max-width: 880px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.news-item {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 30px 36px;
  box-shadow: var(--shadow-card);
  border-left: 4px solid transparent;
  transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
}

.news-item:hover {
  border-left-color: var(--accent-cyan);
  box-shadow: var(--shadow-hover);
  transform: translateX(4px);
}

.news-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 12px;
}

.news-cat {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 20px;
  background: rgba(0, 210, 255, 0.12);
  color: var(--accent-blue);
  font-size: 13px;
  font-weight: 700;
}

.news-meta time {
  font-size: 13px;
  color: var(--text-muted);
}

.news-title {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 10px;
}

.news-title a {
  color: var(--text-main);
  transition: color 0.25s ease;
}

.news-title a:hover {
  color: var(--accent-blue);
}

.news-summary {
  font-size: 15px;
  color: var(--text-body);
  line-height: 1.75;
  margin-bottom: 14px;
}

.news-more {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent-blue);
}

.news-more:hover {
  text-decoration: underline;
}

.news-empty {
  text-align: center;
  padding: 70px 30px;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  color: var(--text-muted);
  font-size: 16px;
}

/* ============ Stats dark section ============ */
.dark-section {
  position: relative;
  color: #fff;
  overflow: hidden;
}

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

.dark-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5, 11, 24, 0.95), rgba(10, 20, 40, 0.88));
  z-index: -1;
}

.section-head.light h2 {
  color: #fff;
}

.section-head.light p {
  color: rgba(255, 255, 255, 0.7);
}

.section-head.light .section-tag {
  background: rgba(255, 255, 255, 0.12);
  color: var(--accent-cyan);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 64px;
}

.stat-card {
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-lg);
  padding: 36px 26px;
  text-align: center;
  transition: background 0.3s ease, transform 0.3s ease;
}

.stat-card:hover {
  background: rgba(255, 255, 255, 0.13);
  transform: translateY(-4px);
}

.stat-card strong {
  display: block;
  font-size: 38px;
  font-weight: 800;
  color: var(--accent-cyan);
  margin-bottom: 6px;
}

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

.process-row {
  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-lg);
  padding: 30px 24px;
  text-align: center;
  transition: border-color 0.3s ease, background 0.3s ease;
}

.process-step:hover {
  background: rgba(255, 255, 255, 0.09);
  border-color: rgba(0, 210, 255, 0.45);
}

.process-step > span {
  display: block;
  font-size: 28px;
  font-weight: 800;
  color: var(--accent-orange);
  margin-bottom: 8px;
  opacity: 0.85;
}

.process-step h3 {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}

.process-step p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
}

/* ============ FAQ ============ */
.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}

.faq-item {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 32px 32px 30px;
  box-shadow: var(--shadow-card);
  border-top: 3px solid transparent;
  transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
}

.faq-item:hover {
  border-top-color: var(--accent-cyan);
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}

.faq-item h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 10px;
}

.faq-item p {
  font-size: 15px;
  color: var(--text-body);
  line-height: 1.75;
}

/* ============ CTA ============ */
.cta {
  position: relative;
  padding: 90px 0;
}

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

.cta::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(5, 11, 24, 0.9), rgba(20, 42, 82, 0.78));
  z-index: -1;
}

.cta-inner {
  text-align: center;
  color: #fff;
}

.cta-inner h2 {
  font-size: 38px;
  font-weight: 800;
  margin-bottom: 18px;
}

.cta-inner p {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.78);
  max-width: 620px;
  margin: 0 auto 34px;
}

/* ============ Footer ============ */
.site-footer {
  background: var(--brand-900);
  color: rgba(255, 255, 255, 0.72);
  padding-top: 70px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 50px;
  padding-bottom: 50px;
}

.footer-logo {
  font-size: 22px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 14px;
  background: linear-gradient(135deg, #fff, var(--accent-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-brand p {
  font-size: 15px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.58);
  max-width: 340px;
}

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

.footer-links a {
  display: block;
  padding: 6px 0;
  font-size: 15px;
  color: rgba(255, 255, 255, 0.62);
  transition: color 0.25s ease, padding-left 0.25s ease;
}

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

.footer-info p {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.62);
  padding: 5px 0;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 22px 0;
  text-align: center;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.4);
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 3px;
}

/* ============ Responsive ============ */
@media (max-width: 1024px) {
  .section {
    padding: 76px 0;
  }

  .hero {
    min-height: auto;
    padding: 110px 0 70px;
  }

  .hero h1 {
    font-size: 40px;
  }

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

  .category-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
  }

  .category-media {
    height: 150px;
  }

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

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

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

  .footer-inner {
    gap: 30px;
  }
}

@media (max-width: 768px) {
  :root {
    --header-h: 64px;
  }

  .site-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: rgba(5, 11, 24, 0.97);
    flex-direction: column;
    align-items: stretch;
    padding: 20px 28px 30px;
    gap: 8px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    transform: translateY(-16px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease;
    border-radius: 0 0 18px 18px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25);
  }

  .site-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-link {
    padding: 14px 18px;
    font-size: 16px;
    text-align: center;
  }

  .nav-toggle {
    display: flex;
  }

  .header-tools .btn-sm {
    display: none;
  }

  .hero {
    padding-top: 96px;
    padding-bottom: 60px;
  }

  .hero h1 {
    font-size: 32px;
  }

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

  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-stats {
    gap: 14px;
  }

  .hero-stats > div {
    min-width: calc(50% - 7px);
    padding: 16px 14px;
  }

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

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

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

  .category-grid {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .category-media {
    height: 200px;
  }

  .news-item {
    padding: 24px 24px;
  }

  .news-title {
    font-size: 18px;
  }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 14px;
  }

  .stat-card {
    padding: 26px 14px;
  }

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

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

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

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 34px;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 18px;
  }

  .brand {
    font-size: 18px;
  }

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

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

  .hero-badge {
    font-size: 12px;
    padding: 6px 14px;
  }

  .btn {
    padding: 11px 22px;
    font-size: 14px;
  }

  .section {
    padding: 60px 0;
  }

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

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

  .feature-card {
    padding: 30px 24px;
  }

  .category-media {
    height: 170px;
  }

  .news-item {
    padding: 20px 18px;
  }

  .news-meta {
    flex-wrap: wrap;
    gap: 8px;
  }

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

  .stat-card {
    padding: 24px 18px;
  }

  .stat-card strong {
    font-size: 30px;
  }

  .faq-item {
    padding: 24px 20px;
  }

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

  .footer-inner {
    padding-bottom: 34px;
  }

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

/* roulang page: category1 */
:root {
  --primary: #3b5bff;
  --primary-dark: #2743cc;
  --primary-light: #eef1ff;
  --accent: #ff6b35;
  --accent-dark: #e5532a;
  --bg: #ffffff;
  --bg-soft: #f6f7fb;
  --bg-dark: #0f1222;
  --bg-card: #ffffff;
  --text: #171a2c;
  --text-weak: #5a6072;
  --text-light: #8a90a3;
  --border: #e8eaf0;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 2px 12px rgba(23, 26, 44, 0.06);
  --shadow-md: 0 8px 30px rgba(23, 26, 44, 0.08);
  --shadow-lg: 0 18px 50px rgba(23, 26, 44, 0.12);
  --container: 1200px;
  --space-section: 92px;
  --transition: all 0.3s ease;
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img, svg {
  max-width: 100%;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}
button {
  border: none;
  background: none;
  font-family: inherit;
  cursor: pointer;
}
ul, ol {
  list-style: none;
}
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 20px;
}
.brand {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: var(--text);
  white-space: nowrap;
  position: relative;
}
.brand::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -3px;
  width: 100%;
  height: 3px;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-link {
  padding: 8px 16px;
  border-radius: 30px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-weak);
  transition: var(--transition);
}
.nav-link:hover {
  color: var(--primary);
  background: var(--primary-light);
}
.nav-link.active {
  color: #fff;
  background: var(--primary);
  font-weight: 600;
  box-shadow: 0 4px 14px rgba(59, 91, 255, 0.3);
}
.header-tools {
  display: flex;
  align-items: center;
  gap: 12px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 30px;
  font-size: 15px;
  font-weight: 600;
  padding: 10px 24px;
  transition: var(--transition);
  border: 2px solid transparent;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(59, 91, 255, 0.3);
}
.btn-sm {
  padding: 7px 18px;
  font-size: 14px;
}
.btn-outline {
  border-color: var(--border);
  color: var(--text);
  background: #fff;
}
.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-light);
}
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #fff;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  height: 2px;
  border-radius: 2px;
  background: var(--text);
  transition: var(--transition);
}
/* ===== Page Hero ===== */
.page-hero {
  position: relative;
  padding: 80px 0 70px;
  background: linear-gradient(135deg, rgba(15, 18, 34, 0.94), rgba(43, 28, 88, 0.88)), url('/assets/images/backpic/back-1.png') no-repeat center center / cover;
  color: #fff;
  overflow: hidden;
}
.page-hero::after {
  content: "";
  position: absolute;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(59, 91, 255, 0.35), transparent 70%);
  top: -120px;
  right: -80px;
}
.page-hero .container {
  position: relative;
  z-index: 2;
}
.hero-breadcrumb {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.72);
  background: rgba(255, 255, 255, 0.10);
  border: 1px solid rgba(255, 255, 255, 0.16);
  padding: 5px 16px;
  border-radius: 30px;
  margin-bottom: 22px;
}
.hero-breadcrumb a:hover {
  color: #fff;
}
.page-hero h1 {
  font-size: 44px;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: 1px;
  margin-bottom: 16px;
}
.page-hero h1 span {
  background: linear-gradient(90deg, #7a8fff, #ff9a76);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.page-hero p {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.78);
  max-width: 620px;
  margin-bottom: 30px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.btn-light {
  background: #fff;
  color: var(--text);
}
.btn-light:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.18);
}
.btn-ghost-light {
  border: 1.5px solid rgba(255, 255, 255, 0.7);
  color: #fff;
  background: transparent;
}
.btn-ghost-light:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: #fff;
}
/* ===== Section ===== */
.section {
  padding: var(--space-section) 0;
}
.section-soft {
  background: var(--bg-soft);
}
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 44px;
  flex-wrap: wrap;
}
.section-head .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-light);
  padding: 4px 14px;
  border-radius: 30px;
  margin-bottom: 10px;
  letter-spacing: 0.5px;
}
.section-head h2 {
  font-size: 32px;
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: 0.5px;
}
.section-head .sub {
  color: var(--text-weak);
  font-size: 15px;
  max-width: 460px;
  margin-top: 8px;
}
.link-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 15px;
  font-weight: 600;
  color: var(--primary);
  white-space: nowrap;
  padding: 8px 18px;
  border: 1.5px solid var(--primary-light);
  border-radius: 30px;
  background: #fff;
  transition: var(--transition);
}
.link-more:hover {
  background: var(--primary-light);
  border-color: var(--primary);
  transform: translateX(4px);
}
/* ===== Feature Cards ===== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 30px 24px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
}
.feature-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-5px);
  border-color: transparent;
}
.feature-card:hover::before {
  transform: scaleX(1);
}
.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 16px;
}
.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}
.feature-card p {
  font-size: 14px;
  color: var(--text-weak);
}
/* ===== News List ===== */
.news-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
.news-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.news-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-6px);
  border-color: transparent;
}
.news-thumb {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}
.news-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.news-card:hover .news-thumb img {
  transform: scale(1.06);
}
.news-tag {
  position: absolute;
  left: 14px;
  top: 14px;
  background: var(--accent);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 3px 12px;
  border-radius: 20px;
  letter-spacing: 0.3px;
}
.news-body {
  padding: 20px 22px 22px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.news-body h3 {
  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;
}
.news-body h3 a:hover {
  color: var(--primary);
}
.news-desc {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 14px;
}
.news-meta {
  margin-top: auto;
  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 .dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--text-light);
  display: inline-block;
  margin: 0 6px;
  vertical-align: middle;
}
/* ===== Topic Tags ===== */
.topic-wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  max-width: 820px;
  margin: 0 auto;
}
.topic-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 22px;
  border-radius: 40px;
  background: #fff;
  border: 1.5px solid var(--border);
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  transition: var(--transition);
}
.topic-tag:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}
.topic-tag .hot {
  color: var(--accent);
}
.topic-stat {
  text-align: center;
  margin-top: 30px;
  font-size: 14px;
  color: var(--text-light);
}
/* ===== Hot Read ===== */
.hot-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 28px;
  align-items: stretch;
}
.hot-main {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-height: 380px;
  display: flex;
  align-items: flex-end;
}
.hot-main img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hot-main .hot-overlay {
  position: relative;
  z-index: 2;
  padding: 32px;
  background: linear-gradient(180deg, transparent 0%, rgba(10, 12, 28, 0.82) 100%);
  color: #fff;
  width: 100%;
}
.hot-overlay .tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  background: var(--accent);
  padding: 3px 14px;
  border-radius: 20px;
  margin-bottom: 12px;
}
.hot-overlay h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
}
.hot-overlay p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.78);
  max-width: 480px;
}
.hot-side {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.hot-item {
  display: flex;
  gap: 16px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px;
  transition: var(--transition);
}
.hot-item:hover {
  box-shadow: var(--shadow-md);
  border-color: transparent;
  transform: translateX(4px);
}
.hot-item img {
  width: 110px;
  height: 82px;
  border-radius: 10px;
  object-fit: cover;
  flex-shrink: 0;
}
.hot-item-content {
  flex: 1;
  display: flex;
  flex-direction: column;
}
.hot-item-content .rank {
  font-size: 12px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 4px;
}
.hot-item-content h4 {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.hot-item-content h4 a:hover {
  color: var(--primary);
}
.hot-item-content .meta {
  font-size: 12px;
  color: var(--text-light);
  margin-top: auto;
}
/* ===== Data strip ===== */
.data-strip {
  background: linear-gradient(120deg, #161a30, #1f2350);
  border-radius: var(--radius-lg);
  padding: 44px 30px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  text-align: center;
  color: #fff;
}
.data-item .num {
  font-size: 40px;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 4px;
  background: linear-gradient(120deg, #7a8fff, #ff9a76);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.data-item .label {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
}
/* ===== FAQ ===== */
.faq-box {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: #fff;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover {
  box-shadow: var(--shadow-sm);
}
.faq-q {
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  cursor: pointer;
}
.faq-q .icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
  transition: transform 0.3s ease;
}
.faq-item.open .icon {
  transform: rotate(45deg);
}
.faq-a {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.3s ease;
  font-size: 15px;
  color: var(--text-weak);
  line-height: 1.8;
}
.faq-item.open .faq-a {
  padding: 0 24px 22px;
  max-height: 300px;
}
/* ===== CTA ===== */
.cta-box {
  background: linear-gradient(135deg, rgba(59, 91, 255, 0.96), rgba(255, 107, 53, 0.9)), url('/assets/images/backpic/back-3.png') no-repeat center center / cover;
  border-radius: var(--radius-lg);
  padding: 60px 40px;
  text-align: center;
  color: #fff;
}
.cta-box h2 {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 12px;
}
.cta-box p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.88);
  max-width: 520px;
  margin: 0 auto 28px;
}
.cta-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}
.btn-white {
  background: #fff;
  color: var(--primary);
}
.btn-white:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}
.btn-border-white {
  border: 1.5px solid rgba(255, 255, 255, 0.8);
  color: #fff;
}
.btn-border-white:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: #fff;
}
/* ===== Footer ===== */
.site-footer {
  background: var(--bg-dark);
  color: rgba(255, 255, 255, 0.72);
  padding-top: 70px;
  margin-top: 0;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer-logo {
  font-size: 22px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 14px;
  letter-spacing: 0.5px;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  max-width: 360px;
  color: rgba(255, 255, 255, 0.58);
}
.footer-links h4,
.footer-info h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 16px;
}
.footer-links a {
  display: block;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.58);
  padding: 5px 0;
  transition: var(--transition);
}
.footer-links a:hover {
  color: #fff;
  padding-left: 6px;
}
.footer-info p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.58);
  padding: 4px 0;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 20px 0;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
  text-align: center;
}
/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .news-list {
    grid-template-columns: repeat(2, 1fr);
  }
  .hot-grid {
    grid-template-columns: 1fr;
  }
  .data-strip {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 768px) {
  :root {
    --space-section: 66px;
  }
  .site-nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    padding: 20px 24px 28px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    gap: 8px;
    transform: translateY(-120%);
    transition: var(--transition);
    z-index: 999;
  }
  .site-nav.open {
    transform: translateY(0);
  }
  .nav-link {
    width: 100%;
    text-align: center;
    padding: 12px;
    font-size: 16px;
  }
  .nav-toggle {
    display: flex;
  }
  .header-tools .btn {
    display: none;
  }
  .page-hero {
    padding: 60px 0 54px;
  }
  .page-hero h1 {
    font-size: 32px;
  }
  .section-head h2 {
    font-size: 26px;
  }
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .cta-box {
    padding: 44px 24px;
  }
  .cta-box h2 {
    font-size: 26px;
  }
}
@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }
  .brand {
    font-size: 18px;
  }
  .feature-grid {
    grid-template-columns: 1fr;
  }
  .news-list {
    grid-template-columns: 1fr;
  }
  .data-strip {
    grid-template-columns: 1fr 1fr;
    padding: 30px 16px;
  }
  .data-item .num {
    font-size: 30px;
  }
  .hot-main {
    min-height: 300px;
  }
  .hot-item {
    flex-direction: column;
  }
  .hot-item img {
    width: 100%;
    height: 140px;
  }
  .hero-actions .btn {
    width: 100%;
  }
}

/* roulang page: article */
:root {
  --primary: #16324f;
  --primary-deep: #0d1e36;
  --primary-light: #2a5a8e;
  --accent: #e8a33d;
  --accent-deep: #cc8422;
  --bg: #f5f7fa;
  --surface: #ffffff;
  --text: #172033;
  --muted: #6b7a91;
  --border: #e3e8f0;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 8px 24px rgba(23, 32, 51, 0.07);
  --shadow-lg: 0 18px 44px rgba(23, 32, 51, 0.13);
  --transition: all 0.3s ease;
}
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: "Inter", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
a {
  color: var(--primary-light);
  text-decoration: none;
  transition: var(--transition);
}
a:hover {
  color: var(--accent-deep);
}
button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  border: none;
  outline: none;
}
ul, ol {
  list-style: none;
}
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(22, 50, 79, 0.3);
}
.btn-primary:hover {
  background: var(--primary-light);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(22, 50, 79, 0.36);
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(22, 50, 79, 0.25);
}
.btn-primary:focus-visible,
.btn-outline:focus-visible {
  outline: 3px solid rgba(42, 90, 142, 0.35);
  outline-offset: 2px;
}
.btn-outline {
  background: transparent;
  border-color: var(--primary-light);
  color: var(--primary-light);
}
.btn-outline:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}
.btn-sm {
  padding: 8px 20px;
  font-size: 14px;
}
.badge {
  display: inline-block;
  padding: 5px 14px;
  background: rgba(232, 163, 61, 0.14);
  color: var(--accent-deep);
  border-radius: 999px;
  font-weight: 600;
  font-size: 13px;
  line-height: 1.4;
}
.badge-dark {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.25);
}
.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);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}
.brand {
  font-size: 21px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}
.brand::before {
  content: "";
  width: 10px;
  height: 22px;
  background: var(--accent);
  border-radius: 3px;
  display: inline-block;
}
.brand:hover {
  color: var(--primary-light);
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-link {
  font-weight: 500;
  font-size: 15px;
  color: var(--primary);
  padding: 8px 2px;
  position: relative;
  white-space: nowrap;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.3s ease;
}
.nav-link:hover::after {
  width: 100%;
}
.nav-link.active {
  font-weight: 700;
  color: var(--accent-deep);
}
.nav-link.active::after {
  width: 100%;
  background: var(--accent-deep);
}
.header-tools {
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  background: transparent;
  border-radius: 10px;
  cursor: pointer;
  background: var(--bg);
}
.nav-toggle span {
  width: 18px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: 0.3s;
}
.nav-toggle.open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}
.article-hero {
  position: relative;
  background: linear-gradient(135deg, rgba(9, 20, 40, 0.94), rgba(22, 50, 79, 0.86)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  padding: 70px 0 54px;
  color: #fff;
}
.article-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at top right, rgba(232, 163, 61, 0.18), transparent 55%);
  pointer-events: none;
}
.article-hero .container {
  position: relative;
  z-index: 1;
}
.breadcrumb-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 26px;
  flex-wrap: wrap;
}
.breadcrumb-nav a {
  color: rgba(255, 255, 255, 0.85);
}
.breadcrumb-nav a:hover {
  color: var(--accent);
}
.breadcrumb-nav .sep {
  color: rgba(255, 255, 255, 0.4);
}
.breadcrumb-nav .current {
  color: rgba(255, 255, 255, 0.9);
}
.article-hero .badge {
  margin-bottom: 18px;
}
.article-hero-title {
  font-size: clamp(28px, 4.5vw, 42px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: 0.3px;
  max-width: 780px;
  margin-bottom: 16px;
}
.article-hero-desc {
  font-size: 16px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.78);
  max-width: 680px;
  margin-bottom: 20px;
}
.hero-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
}
.article-section {
  padding: 56px 0;
}
.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 40px;
  align-items: start;
}
.article-main {
  min-width: 0;
}
.article-card {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 40px;
}
.article-cover {
  margin-bottom: 36px;
  border-radius: 14px;
  overflow: hidden;
}
.article-cover img {
  width: 100%;
  object-fit: cover;
}
.article-body {
  font-size: 16px;
  line-height: 1.9;
  color: #2b3548;
}
.article-body p {
  margin-bottom: 22px;
}
.article-body h2,
.article-body h3,
.article-body h4 {
  color: var(--primary);
  font-weight: 700;
  margin: 32px 0 14px;
  line-height: 1.4;
}
.article-body h2 {
  font-size: 26px;
}
.article-body h3 {
  font-size: 21px;
}
.article-body h4 {
  font-size: 18px;
}
.article-body img {
  border-radius: 12px;
  margin: 20px 0;
}
.article-body ul {
  list-style: disc;
  padding-left: 22px;
  margin-bottom: 22px;
}
.article-body ol {
  list-style: decimal;
  padding-left: 22px;
  margin-bottom: 22px;
}
.article-body li {
  margin-bottom: 8px;
}
.article-body blockquote {
  background: #f0f4fa;
  border-left: 4px solid var(--accent);
  border-radius: 0 12px 12px 0;
  padding: 18px 22px;
  margin: 24px 0;
  color: var(--primary);
  font-style: normal;
}
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 15px;
}
.article-body th,
.article-body td {
  border: 1px solid var(--border);
  padding: 12px 14px;
  text-align: left;
}
.article-body th {
  background: #f0f4fa;
  font-weight: 700;
  color: var(--primary);
}
.article-body a {
  color: var(--primary-light);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.not-found-box {
  text-align: center;
  padding: 80px 40px;
}
.not-found-box .not-found-icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: #eef1f6;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  font-size: 34px;
  color: var(--muted);
}
.not-found-box h2 {
  font-size: 28px;
  color: var(--primary);
  margin-bottom: 12px;
}
.not-found-box p {
  color: var(--muted);
  font-size: 16px;
  margin-bottom: 28px;
}
.not-found-box .btn {
  margin: 0 6px 10px;
}
.article-sidebar {
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.sidebar-card {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px;
}
.sidebar-card .side-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--accent);
}
.sidebar-card p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}
.sidebar-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.sidebar-list a {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 500;
  color: var(--primary);
  padding: 10px 14px;
  background: #f6f8fc;
  border-radius: 10px;
  transition: var(--transition);
}
.sidebar-list a::before {
  content: "→";
  color: var(--accent-deep);
  font-weight: 700;
}
.sidebar-list a:hover {
  background: rgba(232, 163, 61, 0.12);
  transform: translateX(3px);
  color: var(--accent-deep);
}
.sidebar-tip {
  display: flex;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px dashed var(--border);
}
.sidebar-tip:last-child {
  border-bottom: none;
}
.sidebar-tip .tip-icon {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(232, 163, 61, 0.16);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-deep);
  font-size: 16px;
  font-weight: 700;
  flex-shrink: 0;
}
.sidebar-tip .tip-text {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.6;
}
.recommend-section {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 68px 0;
}
.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 36px;
  gap: 16px;
  flex-wrap: wrap;
}
.section-title {
  font-size: 28px;
  font-weight: 800;
  color: var(--primary);
  position: relative;
  padding-left: 16px;
}
.section-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 5px;
  height: 24px;
  background: var(--accent);
  border-radius: 4px;
}
.section-link {
  color: var(--primary);
  font-weight: 600;
  font-size: 14px;
}
.section-link:hover {
  color: var(--accent-deep);
}
.recommend-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.recommend-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.recommend-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.recommend-card .thumb {
  aspect-ratio: 16 / 10;
  overflow: hidden;
}
.recommend-card .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.recommend-card:hover .thumb img {
  transform: scale(1.05);
}
.recommend-card .card-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.recommend-card .card-body h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.5;
}
.recommend-card .card-body p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
  flex: 1;
}
.recommend-card .card-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent-deep);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.recommend-card .card-link:hover {
  color: var(--primary);
}
.faq-section {
  padding: 68px 0;
}
.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px 28px 24px;
  transition: var(--transition);
}
.faq-item:hover {
  border-color: rgba(232, 163, 61, 0.5);
  box-shadow: var(--shadow);
}
.faq-item .faq-q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-weight: 700;
  color: var(--primary);
  font-size: 17px;
  margin-bottom: 12px;
  line-height: 1.45;
}
.faq-item .faq-q .num {
  width: 28px;
  height: 28px;
  min-width: 28px;
  border-radius: 50%;
  background: rgba(232, 163, 61, 0.16);
  color: var(--accent-deep);
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
}
.faq-item .faq-a {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
  padding-left: 40px;
}
.cta-section {
  padding: 0 0 68px;
}
.cta-area {
  position: relative;
  border-radius: 24px;
  overflow: hidden;
  padding: 56px 48px;
  background: linear-gradient(135deg, rgba(13, 30, 54, 0.92), rgba(42, 90, 142, 0.82)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  flex-wrap: wrap;
}
.cta-area::before {
  content: "";
  position: absolute;
  top: -40px;
  right: -40px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: rgba(232, 163, 61, 0.18);
  pointer-events: none;
}
.cta-text h2 {
  font-size: 26px;
  font-weight: 800;
  margin-bottom: 10px;
}
.cta-text p {
  color: rgba(255, 255, 255, 0.82);
  font-size: 15px;
  max-width: 520px;
  line-height: 1.7;
}
.cta-btns {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.site-footer {
  background: var(--primary-deep);
  color: rgba(255, 255, 255, 0.75);
  padding-top: 60px;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer-logo {
  font-size: 22px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 14px;
  letter-spacing: 0.5px;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.62);
  max-width: 300px;
}
.footer-links h4,
.footer-info h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 18px;
}
.footer-links {
  display: flex;
  flex-direction: column;
}
.footer-links a {
  color: rgba(255, 255, 255, 0.68);
  font-size: 14px;
  padding: 6px 0;
  transition: var(--transition);
}
.footer-links a:hover {
  color: var(--accent);
  padding-left: 6px;
}
.footer-info p {
  color: rgba(255, 255, 255, 0.62);
  font-size: 14px;
  line-height: 1.9;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px 0;
}
.footer-bottom .container {
  text-align: center;
  color: rgba(255, 255, 255, 0.45);
  font-size: 13px;
}
@media (max-width: 1024px) {
  .article-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .article-sidebar {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
  .recommend-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .faq-grid {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 992px) {
  .site-nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--surface);
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding: 20px 24px;
    box-shadow: 0 20px 40px rgba(23, 32, 51, 0.12);
    display: none;
    z-index: 99;
    border-bottom: 1px solid var(--border);
  }
  .site-nav.open {
    display: flex;
  }
  .nav-link {
    padding: 10px 0;
    width: 100%;
    border-bottom: 1px solid var(--border);
  }
  .nav-link:last-child {
    border-bottom: none;
  }
  .nav-toggle {
    display: flex;
  }
}
@media (max-width: 768px) {
  .container {
    padding: 0 20px;
  }
  .article-hero {
    padding: 48px 0 36px;
  }
  .article-card {
    padding: 28px 24px;
  }
  .article-section {
    padding: 40px 0;
  }
  .article-sidebar {
    grid-template-columns: 1fr;
  }
  .recommend-grid {
    grid-template-columns: 1fr;
  }
  .cta-area {
    padding: 40px 28px;
    flex-direction: column;
    text-align: center;
  }
  .cta-btns {
    justify-content: center;
  }
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 28px;
    padding-bottom: 32px;
  }
}
@media (max-width: 520px) {
  .brand {
    font-size: 18px;
  }
  .header-inner {
    height: 64px;
    gap: 12px;
  }
  .site-nav {
    top: 64px;
  }
  .btn-sm {
    padding: 8px 14px;
    font-size: 13px;
  }
  .article-hero-title {
    font-size: 26px;
  }
  .article-hero-desc {
    font-size: 14px;
  }
  .section-title {
    font-size: 22px;
  }
  .faq-item {
    padding: 22px 18px;
  }
  .faq-item .faq-a {
    padding-left: 0;
  }
  .footer-bottom .container {
    font-size: 12px;
  }
}

/* roulang page: category2 */
:root {
  --primary: #0f1e2e;
  --primary-light: #1a2f45;
  --primary-dark: #080f18;
  --accent: #00c2a2;
  --accent-hover: #00a88c;
  --accent-soft: rgba(0, 194, 162, 0.12);
  --bg: #f4f7fc;
  --bg-deep: #0b1622;
  --card-bg: #ffffff;
  --text: #16253a;
  --text-muted: #5c6f8a;
  --text-light: #8b9bb5;
  --border: #e3e9f2;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --shadow-sm: 0 4px 14px rgba(15, 30, 46, 0.06);
  --shadow-md: 0 10px 30px rgba(15, 30, 46, 0.1);
  --shadow-lg: 0 18px 48px rgba(15, 30, 46, 0.16);
  --container: 1200px;
  --section-space: 96px;
  --transition: 0.3s ease;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif; font-size: 16px; line-height: 1.7; color: var(--text); background: var(--bg); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
ul, ol { list-style: none; }

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

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 26px; border-radius: 50px; font-size: 15px; font-weight: 600; line-height: 1.4; border: none; transition: all var(--transition); }
.btn-primary { background: var(--accent); color: #05231d; box-shadow: 0 4px 14px rgba(0, 194, 162, 0.32); }
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 8px 22px rgba(0, 194, 162, 0.4); }
.btn-outline { background: transparent; color: #fff; border: 1.5px solid rgba(255, 255, 255, 0.6); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); background: rgba(0, 194, 162, 0.08); }
.btn-sm { padding: 9px 20px; font-size: 14px; }
.btn:focus-visible, .nav-link:focus-visible, .nav-toggle:focus-visible { outline: 3px solid rgba(0, 194, 162, 0.45); outline-offset: 2px; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 100; background: rgba(255, 255, 255, 0.92); backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { font-size: 22px; font-weight: 800; color: var(--primary); letter-spacing: 0.5px; display: inline-flex; align-items: center; gap: 10px; }
.brand::before { content: ""; width: 32px; height: 32px; border-radius: 10px; background: linear-gradient(135deg, var(--accent), #00e0b8); box-shadow: 0 4px 12px rgba(0, 194, 162, 0.4); flex-shrink: 0; }
.site-nav { display: flex; align-items: center; gap: 6px; }
.nav-link { position: relative; padding: 8px 18px; font-size: 15px; font-weight: 500; color: var(--text-muted); border-radius: 50px; transition: all var(--transition); }
.nav-link:hover { color: var(--primary); background: rgba(15, 30, 46, 0.05); }
.nav-link.active { color: var(--primary); font-weight: 700; background: var(--accent-soft); }
.nav-link.active::after { content: ""; position: absolute; left: 50%; bottom: 3px; width: 18px; height: 3px; border-radius: 3px; background: var(--accent); transform: translateX(-50%); }
.header-tools { display: flex; align-items: center; gap: 14px; }
.nav-toggle { display: none; flex-direction: column; justify-content: center; gap: 5px; width: 42px; height: 42px; border: 1px solid var(--border); border-radius: 12px; background: #fff; padding: 10px; }
.nav-toggle span { display: block; width: 100%; height: 2px; border-radius: 3px; background: var(--primary); transition: all var(--transition); }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Hero Banner */
.cat-hero { position: relative; background: linear-gradient(120deg, rgba(8, 15, 24, 0.92), rgba(15, 30, 46, 0.75)), url('/assets/images/backpic/back-1.png') center/cover no-repeat; padding: 120px 0 100px; color: #fff; }
.cat-hero::after { content: ""; position: absolute; inset: auto 0 0 0; height: 90px; background: linear-gradient(to top, var(--bg), transparent); z-index: 1; }
.cat-hero .container { position: relative; z-index: 2; }
.cat-hero-tag { display: inline-flex; align-items: center; gap: 8px; background: rgba(0, 194, 162, 0.18); border: 1px solid rgba(0, 194, 162, 0.4); color: var(--accent); padding: 6px 16px; border-radius: 50px; font-size: 14px; font-weight: 600; margin-bottom: 24px; }
.cat-hero-tag::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 10px var(--accent); }
.cat-hero h1 { font-size: 48px; font-weight: 800; line-height: 1.25; letter-spacing: 1px; margin-bottom: 18px; max-width: 700px; }
.cat-hero h1 span { color: var(--accent); }
.cat-hero p { font-size: 17px; color: rgba(255, 255, 255, 0.85); max-width: 640px; margin-bottom: 34px; line-height: 1.8; }
.cat-hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.cat-hero-meta { display: flex; flex-wrap: wrap; gap: 28px; margin-top: 56px; padding-top: 26px; border-top: 1px solid rgba(255, 255, 255, 0.14); }
.cat-hero-meta div { display: flex; align-items: center; gap: 10px; font-size: 14px; color: rgba(255, 255, 255, 0.8); }
.cat-hero-meta div strong { font-size: 20px; color: #fff; font-weight: 700; }
.cat-hero-meta i { font-style: normal; color: var(--accent); font-size: 18px; }

/* Stats */
.stats-section { padding: var(--section-space) 0 30px; background: var(--bg); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stat-card { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 32px 26px; text-align: center; box-shadow: var(--shadow-sm); transition: all var(--transition); position: relative; overflow: hidden; }
.stat-card::before { content: ""; position: absolute; top: 0; left: 0; width: 100%; height: 4px; background: linear-gradient(90deg, var(--accent), #00e0b8); opacity: 0; transition: all var(--transition); }
.stat-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.stat-card:hover::before { opacity: 1; }
.stat-icon { width: 52px; height: 52px; margin: 0 auto 18px; border-radius: 16px; background: var(--accent-soft); display: flex; align-items: center; justify-content: center; font-size: 24px; }
.stat-number { font-size: 36px; font-weight: 800; color: var(--primary); line-height: 1.2; }
.stat-number small { font-size: 16px; font-weight: 500; color: var(--text-muted); margin-left: 3px; }
.stat-label { margin-top: 8px; color: var(--text-muted); font-size: 14px; }

/* Section Head */
.section-head { text-align: center; max-width: 680px; margin: 0 auto 52px; }
.section-kicker { display: inline-block; padding: 5px 16px; background: var(--accent-soft); color: #009981; border-radius: 40px; font-size: 13px; font-weight: 700; letter-spacing: 1px; margin-bottom: 14px; }
.section-head h2 { font-size: 36px; line-height: 1.3; font-weight: 800; color: var(--primary); letter-spacing: 0.5px; }
.section-head p { margin-top: 14px; color: var(--text-muted); font-size: 16px; line-height: 1.8; }

/* Services */
.services-section { padding: var(--section-space) 0; background: var(--card-bg); border-bottom: 1px solid var(--border); }
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.service-card { border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; background: #fff; transition: all var(--transition); display: flex; flex-direction: column; }
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: rgba(0, 194, 162, 0.4); }
.service-cover { height: 180px; overflow: hidden; position: relative; }
.service-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.service-card:hover .service-cover img { transform: scale(1.06); }
.service-cover::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, rgba(15, 30, 46, 0.35), transparent); }
.service-body { padding: 24px 26px 28px; flex: 1; display: flex; flex-direction: column; }
.service-icon { width: 44px; height: 44px; border-radius: 12px; background: var(--accent-soft); display: flex; align-items: center; justify-content: center; font-size: 20px; margin-bottom: 16px; }
.service-body h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; color: var(--primary); }
.service-body p { font-size: 14px; color: var(--text-muted); line-height: 1.7; flex: 1; margin-bottom: 16px; }
.service-link { font-size: 14px; font-weight: 600; color: var(--accent); display: inline-flex; align-items: center; gap: 6px; transition: gap var(--transition); }
.service-link:hover { gap: 10px; color: var(--accent-hover); }

/* Reports */
.reports-section { padding: var(--section-space) 0; background: var(--bg); }
.reports-grid { display: grid; grid-template-columns: 1fr; gap: 24px; }
.report-card { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; display: grid; grid-template-columns: 260px 1fr; gap: 0; transition: all var(--transition); }
.report-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); border-color: rgba(0, 194, 162, 0.35); }
.report-cover { height: 100%; min-height: 180px; overflow: hidden; position: relative; }
.report-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.report-card:hover .report-cover img { transform: scale(1.05); }
.report-body { padding: 28px 32px; display: flex; flex-direction: column; }
.report-meta { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 12px; align-items: center; }
.badge { display: inline-block; padding: 3px 12px; border-radius: 40px; font-size: 12px; font-weight: 600; }
.badge-accent { background: var(--accent-soft); color: #009981; }
.badge-info { background: rgba(31, 119, 255, 0.1); color: #1f77ff; }
.report-meta span { font-size: 13px; color: var(--text-light); }
.report-body h3 { font-size: 20px; font-weight: 700; color: var(--primary); margin-bottom: 10px; line-height: 1.5; }
.report-body p { font-size: 15px; color: var(--text-muted); line-height: 1.8; margin-bottom: 18px; flex: 1; }
.report-footer { display: flex; align-items: center; justify-content: space-between; border-top: 1px solid var(--border); padding-top: 16px; }
.report-views { font-size: 13px; color: var(--text-light); display: inline-flex; align-items: center; gap: 6px; }
.report-link { font-size: 14px; font-weight: 600; color: var(--accent); display: inline-flex; align-items: center; gap: 6px; transition: gap var(--transition); }
.report-link:hover { gap: 10px; color: var(--accent-hover); }

/* Process */
.process-section { padding: var(--section-space) 0; background: linear-gradient(135deg, rgba(11, 22, 34, 0.97), rgba(15, 30, 46, 1)), url('/assets/images/backpic/back-2.png') center/cover no-repeat; color: #fff; position: relative; overflow: hidden; }
.process-section::before { content: ""; position: absolute; top: -80px; right: -80px; width: 260px; height: 260px; border-radius: 50%; background: rgba(0, 194, 162, 0.12); filter: blur(60px); }
.process-section .section-head h2 { color: #fff; }
.process-section .section-head p { color: rgba(255, 255, 255, 0.7); }
.process-section .section-kicker { background: rgba(0, 194, 162, 0.18); color: var(--accent); }
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; position: relative; z-index: 2; }
.process-item { text-align: center; padding: 34px 22px; border: 1px solid rgba(255, 255, 255, 0.1); border-radius: var(--radius-lg); background: rgba(255, 255, 255, 0.05); backdrop-filter: blur(4px); transition: all var(--transition); }
.process-item:hover { background: rgba(255, 255, 255, 0.1); transform: translateY(-5px); border-color: rgba(0, 194, 162, 0.5); }
.process-num { font-size: 14px; font-weight: 800; color: var(--accent); letter-spacing: 2px; margin-bottom: 14px; display: block; }
.process-icon { width: 56px; height: 56px; margin: 0 auto 18px; border-radius: 18px; background: rgba(0, 194, 162, 0.18); border: 1px solid rgba(0, 194, 162, 0.3); display: flex; align-items: center; justify-content: center; font-size: 24px; }
.process-item h3 { font-size: 17px; font-weight: 700; margin-bottom: 10px; }
.process-item p { font-size: 14px; color: rgba(255, 255, 255, 0.7); line-height: 1.7; }

/* FAQ */
.faq-section { padding: var(--section-space) 0; background: var(--card-bg); }
.faq-wrap { max-width: 800px; margin: 0 auto; }
.faq-item { border: 1px solid var(--border); border-radius: var(--radius-md); margin-bottom: 16px; background: var(--bg); overflow: hidden; transition: all var(--transition); }
.faq-item:hover { border-color: rgba(0, 194, 162, 0.4); }
.faq-item summary { cursor: pointer; list-style: none; display: flex; align-items: center; justify-content: space-between; padding: 20px 24px; font-size: 16px; font-weight: 600; color: var(--primary); transition: all var(--transition); }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; font-size: 22px; color: var(--accent); font-weight: 300; transition: transform var(--transition); flex-shrink: 0; }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-answer { padding: 0 24px 22px; color: var(--text-muted); font-size: 15px; line-height: 1.8; }

/* CTA */
.cta-section { padding: 10px 0 80px; background: var(--card-bg); }
.cta-box { background: linear-gradient(120deg, rgba(15, 30, 46, 0.95), rgba(26, 47, 69, 0.9)), url('/assets/images/backpic/back-3.png') center/cover no-repeat; border-radius: 24px; padding: 56px 48px; text-align: center; color: #fff; position: relative; overflow: hidden; }
.cta-box::before { content: ""; position: absolute; top: -40px; left: -40px; width: 180px; height: 180px; border-radius: 50%; background: rgba(0, 194, 162, 0.2); filter: blur(50px); }
.cta-box h2 { font-size: 30px; font-weight: 800; margin-bottom: 12px; position: relative; }
.cta-box p { max-width: 600px; margin: 0 auto 28px; color: rgba(255, 255, 255, 0.8); font-size: 16px; position: relative; }
.cta-actions { display: flex; justify-content: center; flex-wrap: wrap; gap: 14px; position: relative; }

/* Footer */
.site-footer { background: var(--bg-deep); color: rgba(255, 255, 255, 0.8); padding-top: 68px; }
.footer-inner { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; padding-bottom: 48px; }
.footer-logo { font-size: 22px; font-weight: 800; color: #fff; margin-bottom: 16px; display: flex; align-items: center; gap: 10px; }
.footer-logo::before { content: ""; width: 28px; height: 28px; border-radius: 9px; background: linear-gradient(135deg, var(--accent), #00e0b8); flex-shrink: 0; }
.footer-brand p { font-size: 14px; line-height: 1.9; color: rgba(255, 255, 255, 0.6); max-width: 360px; }
.footer-links h4, .footer-info h4 { color: #fff; font-size: 15px; font-weight: 700; margin-bottom: 18px; letter-spacing: 1px; }
.footer-links a { display: block; font-size: 14px; color: rgba(255, 255, 255, 0.6); padding: 5px 0; transition: all var(--transition); }
.footer-links a:hover { color: var(--accent); padding-left: 5px; }
.footer-info p { font-size: 14px; color: rgba(255, 255, 255, 0.6); padding: 4px 0; line-height: 1.7; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.1); padding: 20px 0; text-align: center; font-size: 13px; color: rgba(255, 255, 255, 0.4); }

/* Responsive */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .cat-hero h1 { font-size: 38px; }
}

@media (max-width: 768px) {
  :root { --section-space: 72px; }
  .site-nav { position: fixed; top: 72px; left: 0; right: 0; background: #fff; flex-direction: column; align-items: stretch; padding: 20px; gap: 10px; border-bottom: 1px solid var(--border); box-shadow: var(--shadow-lg); transform: translateY(-120%); opacity: 0; pointer-events: none; transition: all 0.4s ease; z-index: 99; }
  .site-nav.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .site-nav .nav-link { padding: 14px 20px; font-size: 16px; border-radius: 12px; text-align: center; }
  .nav-toggle { display: flex; }
  .header-tools .btn { display: none; }
  .cat-hero { padding: 90px 0 70px; }
  .cat-hero h1 { font-size: 30px; }
  .cat-hero p { font-size: 15px; }
  .cat-hero-meta { gap: 16px; }
  .report-card { grid-template-columns: 1fr; }
  .report-cover { height: 200px; min-height: 0; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
  .cta-box { padding: 40px 24px; }
  .cta-box h2 { font-size: 24px; }
  .section-head h2 { font-size: 28px; }
}

@media (max-width: 520px) {
  .services-grid { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr; }
  .container { padding: 0 16px; }
  .cat-hero h1 { font-size: 26px; }
  .cat-hero-actions .btn { width: 100%; }
  .report-body { padding: 20px; }
  .report-body h3 { font-size: 17px; }
  .cta-actions .btn { width: 100%; }
}

/* roulang page: category3 */
:root {
    --primary: #4f46e5;
    --primary-dark: #3730a3;
    --primary-light: #eef2ff;
    --accent: #f59e0b;
    --accent-dark: #d97706;
    --bg: #f8fafc;
    --bg-deep: #0f172a;
    --bg-card: #ffffff;
    --text: #1e293b;
    --text-weak: #64748b;
    --border: #e2e8f0;
    --radius: 18px;
    --radius-sm: 10px;
    --shadow: 0 10px 30px rgba(15, 23, 42, 0.07);
    --shadow-lg: 0 20px 50px rgba(15, 23, 42, 0.13);
    --transition: all 0.3s ease;
  }

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

  html {
    scroll-behavior: smooth;
  }

  body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
  }

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

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

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

  .container {
    width: min(1200px, 92%);
    margin: 0 auto;
  }

  .section {
    padding: 88px 0;
  }

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

  .section-head .tag {
    display: inline-block;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
    padding: 6px 18px;
    border-radius: 50px;
    letter-spacing: 1px;
    margin-bottom: 16px;
  }

  .section-head h2 {
    font-size: 36px;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: var(--text);
    line-height: 1.3;
  }

  .section-head p {
    color: var(--text-weak);
    font-size: 16px;
    margin-top: 12px;
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 60px;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 0.3px;
    transition: var(--transition);
    border: 2px solid transparent;
  }

  .btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 6px 18px rgba(79, 70, 229, 0.3);
  }

  .btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(79, 70, 229, 0.38);
  }

  .btn-ghost {
    background: transparent;
    color: #fff;
    border-color: rgba(255, 255, 255, 0.65);
  }

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

  .btn-accent {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 6px 18px rgba(245, 158, 11, 0.3);
  }

  .btn-accent:hover {
    background: var(--accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(245, 158, 11, 0.4);
  }

  .btn-sm {
    padding: 9px 20px;
    font-size: 14px;
  }

  .btn:focus-visible,
  .nav-toggle:focus-visible,
  .faq-q:focus-visible {
    outline: 3px solid rgba(79, 70, 229, 0.4);
    outline-offset: 2px;
  }

  /* ===== Header ===== */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
  }

  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 72px;
    gap: 24px;
  }

  .brand {
    font-size: 22px;
    font-weight: 800;
    color: var(--text);
    letter-spacing: -0.3px;
    display: flex;
    align-items: center;
    gap: 10px;
  }

  .brand::before {
    content: "";
    width: 34px;
    height: 34px;
    background: linear-gradient(135deg, var(--primary), #818cf8);
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
  }

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

  .nav-link {
    padding: 10px 18px;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-weak);
  }

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

  .nav-link.active {
    color: var(--primary);
    font-weight: 700;
    background: var(--primary-light);
  }

  .header-tools {
    display: flex;
    align-items: center;
    gap: 14px;
  }

  .nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    align-items: center;
    border-radius: 10px;
    background: var(--bg);
  }

  .nav-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--text);
    border-radius: 4px;
    transition: var(--transition);
  }

  /* ===== Page Hero ===== */
  .page-hero {
    position: relative;
    padding: 120px 0 110px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
  }

  .hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.92) 0%, rgba(79, 70, 229, 0.85) 55%, rgba(15, 23, 42, 0.78) 100%);
  }

  .hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
  }

  .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.14);
    border: 1px solid rgba(255, 255, 255, 0.25);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    padding: 7px 18px;
    border-radius: 50px;
    backdrop-filter: blur(6px);
    margin-bottom: 24px;
  }

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

  .hero-content h1 {
    font-size: 48px;
    font-weight: 800;
    color: #fff;
    line-height: 1.2;
    letter-spacing: -1px;
  }

  .hero-content p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.85);
    margin: 18px 0 32px;
    max-width: 640px;
  }

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

  /* ===== Breadcrumb ===== */
  .breadcrumb-bar {
    border-bottom: 1px solid var(--border);
    background: #fff;
    padding: 14px 0;
    font-size: 14px;
    color: var(--text-weak);
  }

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

  .breadcrumb-bar span {
    color: var(--text);
    font-weight: 500;
  }

  /* ===== Guide Categories ===== */
  .guide-cat-section {
    background: var(--bg);
  }

  .cat-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
  }

  .cat-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    overflow: hidden;
    transition: var(--transition);
    display: block;
  }

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

  .cat-card img {
    width: 100%;
    height: 190px;
    object-fit: cover;
    transition: transform 0.5s ease;
  }

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

  .cat-content {
    padding: 26px;
  }

  .cat-index {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 14px;
    font-weight: 800;
    border-radius: 10px;
    margin-bottom: 14px;
  }

  .cat-content h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;
  }

  .cat-content p {
    color: var(--text-weak);
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 16px;
  }

  .cat-link {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
  }

  /* ===== Guide List ===== */
  .guide-list-section {
    background: #fff;
  }

  .guide-layout {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 40px;
  }

  .guide-main {
    display: flex;
    flex-direction: column;
    gap: 22px;
  }

  .guide-item {
    display: flex;
    gap: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    transition: var(--transition);
  }

  .guide-item:hover {
    box-shadow: var(--shadow);
    transform: translateY(-3px);
  }

  .guide-item img {
    width: 200px;
    height: 130px;
    object-fit: cover;
    border-radius: 12px;
    flex-shrink: 0;
  }

  .guide-item-body {
    flex: 1;
    display: flex;
    flex-direction: column;
  }

  .guide-meta {
    display: flex;
    gap: 10px;
    align-items: center;
    margin-bottom: 8px;
  }

  .guide-meta .badge {
    background: var(--primary-light);
    color: var(--primary);
    padding: 3px 12px;
    border-radius: 40px;
    font-size: 12px;
    font-weight: 600;
  }

  .guide-meta .date {
    font-size: 13px;
    color: var(--text-weak);
    display: flex;
    align-items: center;
    gap: 5px;
  }

  .guide-item-body h3 {
    font-size: 18px;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 6px;
  }

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

  .guide-item-body p {
    color: var(--text-weak);
    font-size: 14px;
    line-height: 1.65;
    flex: 1;
  }

  .guide-item-body .more {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 10px;
  }

  .guide-item-body .more:hover {
    gap: 10px;
  }

  /* Sidebar */
  .guide-side {
    display: flex;
    flex-direction: column;
    gap: 22px;
  }

  .side-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 26px;
  }

  .side-card h3 {
    font-size: 18px;
    font-weight: 700;
    padding-bottom: 14px;
    margin-bottom: 16px;
    border-bottom: 2px solid var(--primary-light);
    position: relative;
  }

  .side-card h3::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 40px;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
  }

  .side-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
  }

  .side-list li a {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--text);
    line-height: 1.5;
  }

  .side-list li a i {
    color: var(--primary);
    font-size: 12px;
  }

  .side-list li a:hover {
    color: var(--primary);
    padding-left: 4px;
  }

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

  .tag {
    display: inline-block;
    padding: 5px 14px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 40px;
    font-size: 13px;
    color: var(--text-weak);
    transition: var(--transition);
  }

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

  .side-card .side-img {
    border-radius: 12px;
    overflow: hidden;
    margin-top: 14px;
  }

  /* ===== Stats Section ===== */
  .stats-section {
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative;
    padding: 90px 0;
  }

  .stats-section::before {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.9);
  }

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

  .stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
  }

  .stat-item {
    text-align: center;
    padding: 30px 20px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius);
    backdrop-filter: blur(8px);
    transition: var(--transition);
  }

  .stat-item:hover {
    background: rgba(255, 255, 255, 0.12);
    transform: translateY(-4px);
  }

  .stat-item strong {
    display: block;
    font-size: 40px;
    font-weight: 800;
    color: var(--accent);
    margin-bottom: 6px;
    letter-spacing: -1px;
  }

  .stat-item span {
    color: rgba(255, 255, 255, 0.8);
    font-size: 15px;
  }

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

  .faq-list {
    max-width: 820px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
  }

  .faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    overflow: hidden;
    transition: var(--transition);
  }

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

  .faq-q {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 22px 26px;
    font-size: 16px;
    font-weight: 600;
    text-align: left;
    color: var(--text);
    transition: var(--transition);
  }

  .faq-q::after {
    content: "\f078";
    font-family: "Font Awesome 6 Free", fontawesome;
    font-weight: 900;
    font-size: 14px;
    color: var(--primary);
    flex-shrink: 0;
    transition: var(--transition);
  }

  .faq-item.open .faq-q::after {
    transform: rotate(180deg);
  }

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

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

  .faq-a-inner {
    padding: 0 26px 22px 26px;
    color: var(--text-weak);
    font-size: 15px;
    line-height: 1.75;
    border-top: 1px solid var(--border);
    padding-top: 16px;
    margin-top: 0;
  }

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

  .cta-inner {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border-radius: 28px;
    padding: 70px 60px;
    text-align: center;
    position: relative;
    overflow: hidden;
  }

  .cta-inner::before {
    content: "";
    position: absolute;
    width: 300px;
    height: 300px;
    background: rgba(255, 255, 255, 0.07);
    border-radius: 50%;
    top: -140px;
    right: -100px;
  }

  .cta-inner::after {
    content: "";
    position: absolute;
    width: 200px;
    height: 200px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
    bottom: -100px;
    left: -60px;
  }

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

  .cta-inner h2 {
    font-size: 34px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 12px;
  }

  .cta-inner p {
    color: rgba(255, 255, 255, 0.85);
    font-size: 16px;
    margin-bottom: 30px;
  }

  /* ===== Footer ===== */
  .site-footer {
    background: var(--bg-deep);
    color: rgba(255, 255, 255, 0.75);
    padding-top: 70px;
    margin-top: 90px;
  }

  .footer-inner {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 50px;
    padding-bottom: 46px;
  }

  .footer-logo {
    font-size: 22px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 10px;
  }

  .footer-logo::before {
    content: "";
    width: 30px;
    height: 30px;
    background: linear-gradient(135deg, var(--primary), #818cf8);
    border-radius: 9px;
  }

  .footer-brand p {
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.6);
    max-width: 360px;
  }

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

  .footer-links h4,
  .footer-info h4 {
    font-size: 16px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 8px;
    padding-bottom: 12px;
    position: relative;
  }

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

  .footer-links a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    transition: var(--transition);
  }

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

  .footer-info {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    display: flex;
    flex-direction: column;
    gap: 6px;
  }

  .footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 20px 0;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
    text-align: center;
  }

  /* ===== Responsive ===== */
  @media (max-width: 1024px) {
    .guide-layout {
      grid-template-columns: 1fr;
    }
    .cat-grid {
      gap: 20px;
    }
    .hero-content h1 {
      font-size: 40px;
    }
  }

  @media (max-width: 768px) {
    .section {
      padding: 64px 0;
    }
    .section-head h2 {
      font-size: 28px;
    }
    .site-nav {
      position: fixed;
      top: 72px;
      left: 0;
      right: 0;
      background: #fff;
      flex-direction: column;
      align-items: stretch;
      padding: 16px 20px;
      gap: 8px;
      border-bottom: 1px solid var(--border);
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
      transform: translateY(-120%);
      transition: transform 0.3s ease;
      z-index: 99;
    }
    .site-nav.open {
      transform: translateY(0);
    }
    .nav-link {
      padding: 12px 16px;
      border-radius: 12px;
    }
    .nav-toggle {
      display: flex;
    }
    .header-tools .btn {
      display: none;
    }
    .cat-grid {
      grid-template-columns: 1fr;
    }
    .guide-item {
      flex-direction: column;
    }
    .guide-item img {
      width: 100%;
      height: 190px;
    }
    .stats-grid {
      grid-template-columns: repeat(2, 1fr);
    }
    .footer-inner {
      grid-template-columns: 1fr;
      gap: 36px;
    }
    .cta-inner {
      padding: 50px 30px;
    }
    .cta-inner h2 {
      font-size: 26px;
    }
    .hero-content h1 {
      font-size: 32px;
    }
    .hero-content p {
      font-size: 16px;
    }
    .page-hero {
      padding: 90px 0 80px;
    }
  }

  @media (max-width: 520px) {
    .stats-grid {
      grid-template-columns: 1fr 1fr;
      gap: 14px;
    }
    .stat-item strong {
      font-size: 30px;
    }
    .hero-actions {
      flex-direction: column;
      align-items: stretch;
    }
    .hero-actions .btn {
      width: 100%;
    }
    .brand {
      font-size: 18px;
    }
    .footer-links {
      gap: 10px;
    }
  }