/* roulang page: index */
:root {
  --blue-900: #08172d;
  --blue-800: #0b1a2f;
  --blue-700: #0d2f5a;
  --blue-600: #174d85;
  --blue-500: #1a4b8c;
  --gold-400: #ddbb73;
  --gold-500: #c9a962;
  --gold-300: #e0b877;
  --white: #ffffff;
  --bg-light: #f4f7fb;
  --text-900: #142433;
  --text-600: #5a6f85;
  --text-300: #8195aa;
  --border-light: #e5ebf2;
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --shadow-md: 0 10px 30px rgba(13, 42, 84, 0.08);
  --shadow-lg: 0 24px 50px rgba(13, 47, 90, 0.18);
  --font-main: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --space-section: 100px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background: var(--white);
  color: var(--text-900);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

button,
input {
  font-family: inherit;
}

.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: var(--space-section) 0;
}

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

.section-head {
  max-width: 680px;
  margin-bottom: 54px;
}

.section-head.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.eyebrow {
  display: inline-block;
  color: var(--gold-500);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.section-head h2 {
  font-size: 36px;
  line-height: 1.3;
  margin-top: 10px;
  letter-spacing: 1px;
  color: var(--text-900);
}

.section-head p {
  margin-top: 14px;
  color: var(--text-600);
  font-size: 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1;
  border: 0;
  cursor: pointer;
  transition: all 0.25s ease;
}

.btn-primary {
  background: var(--gold-500);
  color: var(--blue-900);
  box-shadow: 0 8px 24px rgba(201, 169, 98, 0.3);
}

.btn-primary:hover {
  background: var(--gold-400);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(201, 169, 98, 0.38);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.06);
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.45);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.14);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 8px 18px;
  font-size: 13px;
  border-radius: 999px;
}

.btn-dark {
  background: var(--blue-700);
  color: var(--white);
}

.btn-dark:hover {
  background: var(--blue-600);
  transform: translateY(-2px);
}

.badge {
  display: inline-block;
  padding: 5px 14px;
  border-radius: 999px;
  background: #eef4fb;
  color: var(--blue-500);
  font-size: 13px;
  font-weight: 600;
}

.badge-gold {
  background: rgba(201, 169, 98, 0.15);
  color: var(--gold-500);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(8, 22, 42, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 76px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 21px;
  font-weight: 800;
  color: var(--white);
  letter-spacing: 1px;
  white-space: nowrap;
}

.logo i {
  color: var(--gold-500);
  font-size: 26px;
}

.site-nav {
  flex: 1;
  margin-left: 18px;
}

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

.nav-item {
  position: relative;
}

.nav-item > a {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 16px;
  border-radius: 10px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 15px;
  font-weight: 500;
  transition: all 0.2s ease;
}

.nav-item > a:hover,
.nav-item.active > a,
.nav-item.has-mega:hover > a {
  color: var(--white);
  background: rgba(255, 255, 255, 0.12);
}

.mega-panel {
  position: absolute;
  left: 50%;
  top: calc(100% + 14px);
  width: 640px;
  background: var(--white);
  color: var(--text-900);
  border-radius: 18px;
  padding: 28px;
  box-shadow: 0 30px 70px rgba(5, 18, 38, 0.35);
  display: flex;
  gap: 30px;
  opacity: 0;
  visibility: hidden;
  transform: translateX(-50%) translateY(12px);
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
  z-index: 998;
}

.mega-panel::before {
  content: "";
  position: absolute;
  top: -12px;
  left: 0;
  width: 100%;
  height: 12px;
}

.has-mega:hover .mega-panel,
.has-mega:focus-within .mega-panel {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.mega-col {
  flex: 1;
}

.mega-col h4 {
  font-size: 14px;
  color: var(--gold-500);
  letter-spacing: 1px;
  margin-bottom: 14px;
}

.mega-col ul li a {
  display: block;
  padding: 7px 0;
  color: #33445a;
  border-bottom: 1px solid #f0f2f5;
  font-size: 14px;
  transition: all 0.2s ease;
}

.mega-col ul li a:hover {
  color: var(--blue-600);
  padding-left: 6px;
}

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

.nav-toggle {
  display: none;
  margin-left: auto;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: var(--white);
  width: 44px;
  height: 44px;
  border-radius: 10px;
  font-size: 18px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.nav-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
}

.hero {
  position: relative;
  min-height: 86vh;
  display: flex;
  align-items: center;
  color: var(--white);
  text-align: center;
  padding: 110px 24px 90px;
  overflow: hidden;
  background:
    linear-gradient(120deg, rgba(8, 23, 45, 0.95) 0%, rgba(13, 44, 78, 0.84) 55%, rgba(20, 71, 112, 0.74) 100%),
    url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 80% 18%, rgba(201, 169, 98, 0.22), transparent 38%);
}

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  font-size: 14px;
  color: var(--gold-300);
}

.hero h1 {
  font-size: 56px;
  line-height: 1.25;
  margin: 26px 0 18px;
  letter-spacing: 1px;
  font-weight: 800;
}

.hero h1 span {
  color: var(--gold-300);
}

.hero-desc {
  font-size: 18px;
  max-width: 760px;
  margin: 0 auto 38px;
  color: rgba(255, 255, 255, 0.86);
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.intro-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}

.intro-text h2 {
  font-size: 34px;
  line-height: 1.35;
  margin: 12px 0 18px;
}

.intro-text > p {
  color: var(--text-600);
  font-size: 16px;
}

.intro-points {
  margin-top: 28px;
}

.intro-points li {
  display: flex;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px dashed #dfe7ee;
}

.intro-points li:last-child {
  border-bottom: 0;
}

.intro-icon {
  width: 46px;
  height: 46px;
  flex: 0 0 auto;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #eef4fb;
  color: var(--blue-500);
  font-size: 19px;
}

.intro-points h4 {
  font-size: 16px;
  font-weight: 700;
}

.intro-points p {
  color: var(--text-600);
  font-size: 14px;
  margin-top: 4px;
}

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

.intro-image img {
  width: 100%;
  height: 440px;
  object-fit: cover;
}

.category-panel {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--blue-700);
  color: var(--white);
  box-shadow: var(--shadow-lg);
}

.category-info {
  padding: 52px;
}

.category-info .badge {
  background: rgba(255, 255, 255, 0.14);
  color: var(--gold-300);
}

.category-info h2 {
  color: var(--white);
  font-size: 32px;
  margin: 16px 0 14px;
  line-height: 1.3;
}

.category-info p {
  color: rgba(255, 255, 255, 0.82);
  margin-bottom: 26px;
  font-size: 15px;
}

.category-features {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 30px;
}

.category-features span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 15px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  font-size: 13px;
}

.category-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 340px;
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.news-card {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: all 0.3s ease;
  box-shadow: 0 6px 20px rgba(13, 40, 80, 0.04);
}

.news-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 18px 40px rgba(13, 40, 80, 0.12);
  border-color: #d7e0ea;
}

.news-card h3 {
  margin-top: 14px;
  font-size: 18px;
  line-height: 1.5;
}

.news-card h3 a {
  transition: color 0.2s ease;
}

.news-card h3 a:hover {
  color: var(--blue-600);
}

.news-card p {
  color: var(--text-600);
  margin-top: 10px;
  font-size: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid #f0f2f5;
  font-size: 13px;
  color: var(--text-300);
}

.empty-tip {
  grid-column: 1 / -1;
  text-align: center;
  padding: 70px 20px;
  background: #f7f9fc;
  border-radius: var(--radius-md);
  color: var(--text-600);
  font-size: 16px;
}

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

.feature-card {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 32px 26px;
  transition: all 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: #d3dfeb;
}

.feature-icon {
  width: 58px;
  height: 58px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--blue-500), var(--blue-700));
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 20px;
}

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

.feature-card p {
  color: var(--text-600);
  font-size: 14px;
  margin-top: 10px;
}

.stats-section {
  background:
    linear-gradient(120deg, rgba(11, 26, 47, 0.98), rgba(18, 58, 102, 0.94)),
    url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
  color: var(--white);
}

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

.stat-num {
  font-size: 46px;
  font-weight: 800;
  color: var(--gold-300);
  line-height: 1.2;
}

.stat-label {
  color: rgba(255, 255, 255, 0.7);
  margin-top: 8px;
  font-size: 15px;
}

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

.timeline-item {
  position: relative;
  padding: 28px 24px;
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  transition: all 0.3s ease;
}

.timeline-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.timeline-year {
  font-size: 24px;
  font-weight: 800;
  color: var(--blue-600);
}

.timeline-title {
  font-weight: 700;
  margin-top: 10px;
}

.timeline-desc {
  color: var(--text-600);
  font-size: 14px;
  margin-top: 8px;
}

.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: 14px;
  overflow: hidden;
  transition: border-color 0.3s ease;
}

.faq-item.open {
  border-color: #cddded;
}

.faq-question {
  width: 100%;
  background: transparent;
  border: 0;
  padding: 22px 26px;
  font-size: 16px;
  font-weight: 700;
  text-align: left;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  cursor: pointer;
  color: var(--text-900);
}

.faq-question i {
  color: var(--gold-500);
  transition: transform 0.3s ease;
  font-size: 18px;
}

.faq-item.open .faq-question i {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 26px;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height 0.35s ease, padding 0.35s ease, opacity 0.3s ease;
}

.faq-item.open .faq-answer {
  max-height: 320px;
  padding: 0 26px 24px;
  opacity: 1;
  color: var(--text-600);
  font-size: 15px;
}

.cta-card {
  position: relative;
  background:
    linear-gradient(135deg, rgba(13, 47, 90, 0.96), rgba(23, 77, 133, 0.92)),
    url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
  border-radius: var(--radius-lg);
  color: var(--white);
  padding: 64px 56px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 30px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.cta-card::before {
  content: "";
  position: absolute;
  right: 0;
  top: 0;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(201, 169, 98, 0.32), transparent 60%);
}

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

.cta-text h2 {
  color: var(--white);
  font-size: 32px;
  margin-bottom: 12px;
}

.cta-text p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 15px;
}

.cta-actions {
  position: relative;
  z-index: 2;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.site-footer {
  background: var(--blue-900);
  color: rgba(255, 255, 255, 0.72);
  padding: 64px 0 26px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.1fr;
  gap: 40px;
}

.footer-brand .logo {
  color: var(--white);
  font-size: 20px;
  margin-bottom: 14px;
}

.footer-brand p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.56);
  max-width: 320px;
}

.footer-col h4 {
  color: var(--white);
  font-size: 16px;
  margin-bottom: 16px;
}

.footer-col li {
  padding: 5px 0;
}

.footer-col li a {
  font-size: 14px;
  transition: color 0.2s ease;
}

.footer-col li a:hover {
  color: var(--gold-300);
}

.footer-contact li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 14px;
  padding: 6px 0;
}

.footer-contact i {
  color: var(--gold-500);
  margin-top: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 22px;
  margin-top: 46px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: rgba(255, 255, 255, 0.42);
  font-size: 13px;
  flex-wrap: wrap;
}

@media (max-width: 1024px) {
  :root {
    --space-section: 80px;
  }

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

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

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

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

@media (max-width: 920px) {
  .header-cta {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: fixed;
    top: 76px;
    left: 0;
    right: 0;
    background: #0d2b4d;
    padding: 20px 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: all 0.25s ease;
    box-shadow: 0 24px 50px rgba(0, 0, 0, 0.25);
  }

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

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }

  .nav-item > a {
    justify-content: space-between;
    padding: 14px 16px;
  }

  .mega-panel {
    display: none;
  }

  .hero {
    min-height: 70vh;
  }

  .hero h1 {
    font-size: 34px;
  }

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

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

  .category-cover img {
    min-height: 260px;
  }

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

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

  .cta-card {
    flex-direction: column;
    text-align: center;
  }

  .cta-actions {
    justify-content: center;
  }
}

@media (max-width: 520px) {
  .section {
    padding: 60px 0;
  }

  .section-head h2 {
    font-size: 27px;
  }

  .logo {
    font-size: 18px;
  }

  .hero {
    padding: 80px 20px 60px;
  }

  .hero h1 {
    font-size: 29px;
  }

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

  .btn {
    padding: 12px 22px;
    font-size: 14px;
  }

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

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

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

  .stat-num {
    font-size: 34px;
  }

  .category-info {
    padding: 32px 24px;
  }

  .category-info h2 {
    font-size: 26px;
  }

  .cta-card {
    padding: 40px 24px;
  }

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

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

  .footer-bottom {
    flex-direction: column;
  }
}

/* roulang page: category1 */
:root {
  --primary: #0b3d91;
  --primary-dark: #072a66;
  --primary-light: #1a56b8;
  --accent: #d4a017;
  --accent-light: #e8b923;
  --bg: #f5f7fb;
  --bg-alt: #0c1322;
  --bg-deep: #080d1a;
  --text: #1a2332;
  --text-light: #4a5568;
  --text-muted: #718096;
  --border: #e2e8f0;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 2px 8px rgba(7, 20, 42, 0.08);
  --shadow-md: 0 6px 24px rgba(7, 20, 42, 0.1);
  --shadow-lg: 0 16px 48px rgba(7, 20, 42, 0.16);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --container-w: 1200px;
}

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

html { scroll-behavior: smooth; }

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

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
ul { list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
.container { max-width: var(--container-w); margin: 0 auto; padding: 0 24px; }

::selection { background: rgba(212, 160, 23, 0.3); }

/* ===== Header ===== */
.site-header {
  background: rgba(8, 13, 26, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 900;
  color: #fff;
  letter-spacing: 1px;
  white-space: nowrap;
}

.logo i {
  color: var(--accent);
  font-size: 24px;
}

.site-nav { display: flex; align-items: center; }
.nav-list { display: flex; align-items: center; gap: 8px; }
.nav-item { position: relative; }

.nav-item > a {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 18px;
  border-radius: 8px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 15px;
  font-weight: 500;
  transition: var(--transition);
}

.nav-item > a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.nav-item.active > a {
  color: var(--accent-light);
  background: rgba(212, 160, 23, 0.12);
  font-weight: 700;
}

.has-mega:hover .mega-panel {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}

.mega-panel {
  position: absolute;
  top: calc(100% + 8px);
  left: -180px;
  width: 620px;
  background: rgba(13, 20, 38, 0.98);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 18px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.4);
  padding: 28px 32px;
  display: flex;
  gap: 32px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition);
  pointer-events: none;
  z-index: 200;
}

.mega-panel::before {
  content: '';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  border: 6px solid transparent;
  border-bottom-color: rgba(255, 255, 255, 0.1);
}

.mega-col { flex: 1; }
.mega-col h4 {
  color: var(--accent-light);
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: 1px;
  text-transform: uppercase;
}
.mega-col ul li { margin-bottom: 10px; }
.mega-col a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 14px;
  transition: var(--transition);
}
.mega-col a:hover { color: #fff; padding-left: 6px; }

.header-cta {
  padding: 10px 24px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: #0b0d14;
  font-weight: 700;
  font-size: 14px;
  border: none;
  box-shadow: 0 4px 18px rgba(212, 160, 23, 0.35);
  transition: var(--transition);
  white-space: nowrap;
}

.header-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(212, 160, 23, 0.5);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: #fff;
  font-size: 22px;
  cursor: pointer;
  padding: 8px;
}

/* ===== Page Hero ===== */
.page-hero {
  position: relative;
  background: linear-gradient(135deg, #080d1a 0%, #0c1b33 60%, #122949 100%);
  padding: 100px 0 90px;
  overflow: hidden;
  text-align: center;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  opacity: 0.22;
}

.page-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 100%, rgba(212, 160, 23, 0.12), transparent 70%);
}

.hero-inner { position: relative; z-index: 2; max-width: 860px; margin: 0 auto; }

.crumb {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.6);
  font-size: 13px;
  margin-bottom: 20px;
  background: rgba(255, 255, 255, 0.06);
  padding: 6px 16px;
  border-radius: 30px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.crumb i { color: var(--accent-light); font-size: 12px; }
.crumb a { color: rgba(255, 255, 255, 0.6); }
.crumb a:hover { color: #fff; }

.page-hero h1 {
  font-size: clamp(34px, 5vw, 54px);
  font-weight: 900;
  color: #fff;
  letter-spacing: 2px;
  line-height: 1.2;
  margin-bottom: 18px;
  text-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
}

.page-hero h1 span {
  background: linear-gradient(135deg, var(--accent-light), #f0d88a);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.page-hero .lead {
  color: rgba(255, 255, 255, 0.78);
  font-size: 17px;
  max-width: 700px;
  margin: 0 auto 32px;
  line-height: 1.8;
}

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

.hero-tags span {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  color: rgba(255, 255, 255, 0.85);
  padding: 6px 16px;
  border-radius: 30px;
  font-size: 13px;
  transition: var(--transition);
}

.hero-tags span:hover {
  background: rgba(212, 160, 23, 0.15);
  border-color: rgba(212, 160, 23, 0.4);
  color: var(--accent-light);
}

/* ===== Section Base ===== */
.section { padding: 88px 0; }
.section-alt { background: #fff; }
.section-dark { background: var(--bg-alt); color: #fff; }

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

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.eyebrow::before,
.eyebrow::after {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--accent);
  opacity: 0.6;
}

.section-head h2 {
  font-size: clamp(26px, 3.6vw, 38px);
  font-weight: 900;
  color: var(--text);
  line-height: 1.3;
  margin-bottom: 14px;
}

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

.section-dark .section-head h2 { color: #fff; }
.section-dark .section-head .sub { color: rgba(255, 255, 255, 0.65); }
.section-dark .eyebrow { color: var(--accent-light); }

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

.feature-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: 34px 26px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

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

.feature-card:hover {
  transform: translateY(-6px);
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(212, 160, 23, 0.3);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3);
}

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

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(212, 160, 23, 0.2), rgba(212, 160, 23, 0.05));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: var(--accent-light);
  margin-bottom: 20px;
}

.feature-card h3 {
  color: #fff;
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 10px;
}

.feature-card p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
  line-height: 1.7;
}

/* ===== Entry / Catalog Cards ===== */
.entry-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 24px;
}

.entry-card {
  grid-column: span 6;
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.entry-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(212, 160, 23, 0.35);
}

.entry-media {
  position: relative;
  height: 220px;
  overflow: hidden;
}

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

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

.entry-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(8, 13, 26, 0.4));
}

.entry-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 2;
  background: rgba(8, 13, 26, 0.85);
  backdrop-filter: blur(8px);
  color: var(--accent-light);
  font-size: 12px;
  font-weight: 700;
  padding: 5px 14px;
  border-radius: 30px;
  border: 1px solid rgba(212, 160, 23, 0.3);
}

.entry-body {
  padding: 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.entry-body h3 {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text);
  line-height: 1.4;
}

.entry-body p {
  color: var(--text-light);
  font-size: 14px;
  line-height: 1.7;
  flex: 1;
  margin-bottom: 18px;
}

.entry-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--text-muted);
  font-size: 13px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

.entry-meta span { display: flex; align-items: center; gap: 6px; }
.entry-meta i { color: var(--accent); font-size: 13px; }

/* ===== Steps / Roadmap ===== */
.steps-wrap {
  position: relative;
  padding: 20px 0;
}

.steps-wrap::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, transparent, rgba(212, 160, 23, 0.4), transparent);
  transform: translateX(-50%);
}

.step-item {
  display: flex;
  align-items: center;
  gap: 40px;
  position: relative;
  margin-bottom: 48px;
}

.step-item:last-child { margin-bottom: 0; }

.step-num {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-light), var(--accent));
  color: #0b0d14;
  font-size: 20px;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 8px 24px rgba(212, 160, 23, 0.3);
  z-index: 2;
  position: relative;
}

.step-content {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: 24px 30px;
  flex: 1;
  transition: var(--transition);
}

.step-content:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(212, 160, 23, 0.25);
}

.step-content h3 {
  color: #fff;
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
}

.step-content p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
  line-height: 1.7;
}

.step-tag {
  display: inline-block;
  margin-top: 12px;
  background: rgba(212, 160, 23, 0.15);
  color: var(--accent-light);
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 20px;
  border: 1px solid rgba(212, 160, 23, 0.2);
}

/* ===== Info / Formatted List ===== */
.info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.info-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 32px 26px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.info-card::after {
  content: '';
  position: absolute;
  right: -40px;
  bottom: -40px;
  width: 100px;
  height: 100px;
  background: radial-gradient(circle, rgba(212, 160, 23, 0.1), transparent 70%);
  border-radius: 50%;
}

.info-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.info-card .card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(11, 61, 145, 0.08), rgba(11, 61, 145, 0.02));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--primary);
  margin-bottom: 18px;
}

.info-card h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text);
}

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

.info-card ul {
  margin-top: 12px;
}

.info-card ul li {
  padding: 4px 0;
  color: var(--text-muted);
  font-size: 13px;
  position: relative;
  padding-left: 18px;
}

.info-card ul li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--accent);
}

/* ===== List Article ===== */
.article-list {
  max-width: 860px;
  margin: 0 auto;
}

.list-item {
  display: flex;
  gap: 28px;
  padding: 28px 0;
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

.list-item:first-child { padding-top: 0; }
.list-item:last-child { padding-bottom: 0; border-bottom: none; }

.list-item:hover { padding-left: 12px; }

.list-thumb {
  flex-shrink: 0;
  width: 160px;
  height: 110px;
  border-radius: 12px;
  overflow: hidden;
  background: var(--bg);
}

.list-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.list-item:hover .list-thumb img { transform: scale(1.08); }

.list-body { flex: 1; }

.list-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.list-meta .badge {
  background: rgba(11, 61, 145, 0.08);
  color: var(--primary);
  padding: 2px 10px;
  border-radius: 20px;
  font-weight: 600;
}

.list-body h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
  line-height: 1.4;
}

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

.list-body p {
  color: var(--text-light);
  font-size: 14px;
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ===== FAQ ===== */
.faq-wrap {
  max-width: 860px;
  margin: 0 auto;
}

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

.faq-item:hover { border-color: rgba(212, 160, 23, 0.3); }

.faq-question {
  padding: 20px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-weight: 600;
  font-size: 15px;
  color: var(--text);
  user-select: none;
}

.faq-question i {
  color: var(--accent);
  font-size: 14px;
  transition: transform 0.3s ease;
  flex-shrink: 0;
  margin-left: 16px;
}

.faq-item.open .faq-question i { transform: rotate(45deg); }

.faq-answer {
  padding: 0 28px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq-item.open .faq-answer {
  padding: 0 28px 22px;
  max-height: 400px;
}

.faq-answer p {
  color: var(--text-light);
  font-size: 14px;
  line-height: 1.8;
  padding-top: 4px;
  border-top: 1px dashed var(--border);
}

/* ===== CTA ===== */
.cta-section {
  position: relative;
  background: linear-gradient(135deg, var(--primary-dark), var(--primary) 60%, var(--primary-light));
  padding: 80px 0;
  text-align: center;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity: 0.12;
}

.cta-inner { position: relative; z-index: 2; max-width: 680px; margin: 0 auto; }

.cta-inner h2 {
  color: #fff;
  font-size: clamp(26px, 3.5vw, 36px);
  font-weight: 900;
  margin-bottom: 14px;
}

.cta-inner p {
  color: rgba(255, 255, 255, 0.78);
  font-size: 15px;
  margin-bottom: 30px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 32px;
  border-radius: 10px;
  font-weight: 700;
  font-size: 15px;
  transition: var(--transition);
  cursor: pointer;
  border: 2px solid transparent;
}

.btn-accent {
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: #0b0d14;
  box-shadow: 0 8px 28px rgba(212, 160, 23, 0.35);
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 36px rgba(212, 160, 23, 0.5);
}

.btn-outline {
  border-color: rgba(255, 255, 255, 0.5);
  color: #fff;
  background: transparent;
}

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

/* ===== Footer ===== */
.site-footer {
  background: var(--bg-deep);
  color: rgba(255, 255, 255, 0.7);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand .logo { margin-bottom: 16px; }

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.55);
  max-width: 340px;
}

.footer-col h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 24px;
  height: 2px;
  background: var(--accent);
}

.footer-col ul li { margin-bottom: 10px; }

.footer-col ul li a {
  color: rgba(255, 255, 255, 0.55);
  font-size: 14px;
  transition: var(--transition);
}

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

.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: rgba(255, 255, 255, 0.55);
  font-size: 14px;
}

.footer-contact li i { color: var(--accent); margin-top: 4px; }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 22px 0;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.35);
  flex-wrap: wrap;
  gap: 8px;
}

/* ===== Mobile / Responsive ===== */
@media (max-width: 1024px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .info-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .mega-panel { width: 540px; left: -160px; }
}

@media (max-width: 768px) {
  .header-inner { height: 64px; }
  .site-nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(8, 13, 26, 0.98);
    flex-direction: column;
    align-items: stretch;
    padding: 16px 24px 24px;
    transform: translateY(-120%);
    transition: var(--transition);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    max-height: calc(100vh - 64px);
    overflow-y: auto;
    z-index: 999;
  }

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

  .nav-list { flex-direction: column; align-items: stretch; gap: 4px; }

  .nav-item > a {
    padding: 14px 16px;
    font-size: 16px;
  }

  .mega-panel {
    position: static;
    width: 100%;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    margin-top: 8px;
    padding: 16px;
    flex-direction: column;
    gap: 16px;
    display: none;
  }

  .has-mega.open .mega-panel { display: flex; }

  .mega-panel::before { display: none; }

  .nav-toggle {
    display: block;
  }

  .header-cta { display: none; }

  .entry-grid { grid-template-columns: 1fr; }
  .entry-card { grid-column: span 12; }

  .steps-wrap::before { left: 32px; }

  .step-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    padding-left: 64px;
    position: relative;
  }

  .step-num {
    position: absolute;
    left: 0;
    top: 0;
  }

  .step-content { width: 100%; }

  .list-item { flex-direction: column; gap: 16px; }
  .list-thumb { width: 100%; height: 180px; }

  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 520px) {
  .section { padding: 60px 0; }
  .feature-grid { grid-template-columns: 1fr; }
  .info-grid { grid-template-columns: 1fr; }
  .page-hero { padding: 70px 0 60px; }
  .header-cta { display: none; }
  .logo { font-size: 17px; }
  .logo i { font-size: 20px; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .cta-btns { flex-direction: column; align-items: center; }
  .btn { width: 100%; justify-content: center; }
  .entry-body { padding: 22px; }
  .faq-question { padding: 16px 20px; font-size: 14px; }
  .faq-answer { padding: 0 20px; }
  .faq-item.open .faq-answer { padding: 0 20px 18px; }
  .hero-tags span { padding: 4px 12px; font-size: 12px; }
}

/* roulang page: article */
:root {
  --primary: #0f2a43;
  --primary-dark: #081a2c;
  --primary-light: #1a3f66;
  --accent: #c9a45c;
  --accent-light: #e0c88a;
  --accent-dark: #a3833e;
  --bg-light: #f2f5f8;
  --bg-dark: #0b1a2c;
  --text: #1e2a38;
  --text-soft: #4f6374;
  --text-light: #8b9aaa;
  --border: #dce4ec;
  --white: #ffffff;
  --shadow: 0 4px 24px rgba(15,42,67,0.08);
  --shadow-lg: 0 12px 40px rgba(15,42,67,0.14);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: all 0.3s ease;
  --container: 1200px;
  --font: "PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}

*,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--white);
}

a { color: var(--primary); text-decoration: none; transition: color 0.25s; }
a:hover { color: var(--accent); }
img { max-width: 100%; height: auto; display: block; }
ul,ol { list-style: none; }
button,input,select,textarea { font-family: inherit; font-size: inherit; outline: none; }
button { cursor: pointer; background: none; border: none; }
i { font-style: normal; }

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

/* ==== Header ==== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(8,26,44,0.95);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(201,164,92,0.18);
  transition: box-shadow 0.3s;
}
.site-header.scrolled {
  box-shadow: 0 6px 30px rgba(0,0,0,0.35);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 800;
  color: var(--white);
  letter-spacing: 0.5px;
  white-space: nowrap;
  transition: color 0.3s;
}
.logo i {
  color: var(--accent);
  font-size: 24px;
}
.logo:hover { color: var(--accent-light); }

.site-nav { display: flex; align-items: center; }
.nav-list { display: flex; align-items: center; gap: 4px; }
.nav-item { position: relative; }
.nav-item > a {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 18px;
  color: rgba(255,255,255,0.85);
  font-weight: 500;
  border-radius: 6px;
  transition: all 0.25s;
}
.nav-item > a i {
  font-size: 11px;
  color: var(--accent);
}
.nav-item > a:hover,
.nav-item.active > a {
  color: var(--accent-light);
  background: rgba(201,164,92,0.1);
}

.has-mega .mega-panel {
  position: absolute;
  top: calc(100% + 14px);
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  width: 520px;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  display: flex;
  gap: 28px;
  padding: 28px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s;
  z-index: 1200;
}
.has-mega:hover .mega-panel,
.has-mega:focus-within .mega-panel {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.mega-panel::before {
  content: '';
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  border: 7px solid transparent;
  border-bottom-color: var(--white);
}
.mega-col { flex: 1; }
.mega-col h4 {
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 1px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--accent);
  margin-bottom: 12px;
}
.mega-col ul li a {
  display: block;
  padding: 7px 0;
  color: var(--text-soft);
  font-size: 14px;
  border-bottom: 1px dashed var(--border);
  transition: all 0.2s;
}
.mega-col ul li:last-child a { border-bottom: none; }
.mega-col ul li a:hover { color: var(--accent); padding-left: 5px; }

.header-cta {
  margin-left: 16px;
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 8px;
  color: var(--white);
  font-size: 20px;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255,255,255,0.2);
  transition: all 0.3s;
}
.nav-toggle:hover { background: rgba(255,255,255,0.08); }

/* ==== Buttons ==== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 15px;
  line-height: 1.4;
  border: 2px solid transparent;
  transition: all 0.3s;
  text-align: center;
  justify-content: center;
}
.btn i { font-size: 14px; }
.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);
  color: var(--primary-dark);
  box-shadow: 0 4px 16px rgba(201,164,92,0.3);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(201,164,92,0.42);
  color: var(--primary-dark);
}
.btn-outline {
  border-color: var(--accent);
  color: var(--accent);
  background: transparent;
}
.btn-outline:hover {
  background: rgba(201,164,92,0.1);
  color: var(--accent-light);
  transform: translateY(-2px);
}
.btn-light {
  background: var(--white);
  color: var(--primary);
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
}
.btn-light:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.16);
  color: var(--primary);
}
.btn:focus-visible {
  outline: 3px solid rgba(201,164,92,0.5);
  outline-offset: 2px;
}

/* ==== Article Hero Banner ==== */
.article-banner {
  position: relative;
  background:
    linear-gradient(135deg, rgba(8,26,44,0.92) 0%, rgba(15,42,67,0.78) 60%, rgba(8,26,44,0.9) 100%),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat fixed;
  padding: 80px 0 64px;
  color: var(--white);
  border-bottom: 3px solid var(--accent);
}
.article-banner::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 60px;
  background: linear-gradient(to top, var(--white), transparent);
  pointer-events: none;
}
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  margin-bottom: 24px;
}
.breadcrumb a { color: rgba(255,255,255,0.75); }
.breadcrumb a:hover { color: var(--accent-light); }
.breadcrumb span.sep { color: rgba(255,255,255,0.35); }

.banner-title {
  font-size: clamp(26px, 4.5vw, 40px);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: 0.5px;
  max-width: 800px;
  margin-bottom: 18px;
}
.banner-desc {
  font-size: 16px;
  line-height: 1.8;
  color: rgba(255,255,255,0.75);
  max-width: 720px;
  margin-bottom: 28px;
}
.banner-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 14px;
  color: rgba(255,255,255,0.6);
}
.banner-meta .meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
}
.banner-meta .meta-item i { color: var(--accent); }

/* ==== Article Main ==== */
.article-main-wrap {
  padding: 60px 0 80px;
  background: var(--bg-light);
}
.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 350px;
  gap: 48px;
  align-items: start;
}
.article-main {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 48px;
  border: 1px solid var(--border);
}
.not-found-panel {
  text-align: center;
  padding: 80px 40px;
}
.not-found-panel .nf-icon {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  background: rgba(201,164,92,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  font-size: 36px;
  color: var(--accent);
}
.not-found-panel h2 { font-size: 28px; margin-bottom: 12px; color: var(--primary); }
.not-found-panel p { color: var(--text-soft); margin-bottom: 28px; }

.article-content {
  font-size: 16px;
  line-height: 2;
  color: var(--text);
}
.article-content h2 {
  font-size: 24px;
  color: var(--primary);
  margin: 40px 0 18px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--accent);
  font-weight: 700;
}
.article-content h3 {
  font-size: 20px;
  color: var(--primary);
  margin: 32px 0 14px;
  font-weight: 700;
}
.article-content p { margin-bottom: 20px; }
.article-content ul,
.article-content ol {
  margin: 14px 0 22px;
  padding-left: 24px;
}
.article-content li {
  margin-bottom: 8px;
  position: relative;
}
.article-content ul li {
  list-style: none;
  padding-left: 18px;
}
.article-content ul li::before {
  content: '\f054';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  font-size: 11px;
  color: var(--accent);
  position: absolute;
  left: 0;
  top: 3px;
}
.article-content ol { list-style: decimal; }
.article-content ol li { list-style: decimal; }
.article-content blockquote {
  border-left: 4px solid var(--accent);
  background: rgba(201,164,92,0.08);
  padding: 18px 24px;
  border-radius: 0 8px 8px 0;
  margin: 24px 0;
  font-style: normal;
  color: var(--text-soft);
}
.article-content blockquote p { margin-bottom: 0; }
.article-content img {
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin: 24px 0;
  width: 100%;
  object-fit: cover;
}
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 14px;
}
.article-content table th {
  background: var(--primary);
  color: var(--white);
  padding: 12px 16px;
  text-align: left;
  font-weight: 600;
}
.article-content table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--white);
}
.article-content a {
  color: var(--accent-dark);
  border-bottom: 1px dashed var(--accent);
}
.article-content a:hover { color: var(--accent); }

.article-tags {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}
.article-tags .tag-label { font-size: 14px; font-weight: 600; color: var(--text-soft); }
.tag-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: rgba(201,164,92,0.12);
  color: var(--accent-dark);
  border-radius: 20px;
  font-size: 13px;
  font-weight: 500;
  transition: all 0.25s;
}
.tag-chip:hover {
  background: var(--accent);
  color: var(--white);
  transform: translateY(-2px);
}

/* ==== Sidebar ==== */
.article-sidebar {
  display: flex;
  flex-direction: column;
  gap: 28px;
  position: sticky;
  top: 100px;
}
.sidebar-card {
  background: var(--primary-dark);
  border-radius: var(--radius);
  padding: 28px;
  border: 1px solid rgba(201,164,92,0.2);
}
.sidebar-card h3 {
  color: var(--white);
  font-size: 18px;
  font-weight: 700;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--accent);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.sidebar-card h3 i { color: var(--accent); font-size: 16px; }
.sidebar-card ul li { margin-bottom: 4px; }
.sidebar-card ul li a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 0;
  color: rgba(255,255,255,0.75);
  font-size: 14px;
  border-bottom: 1px dashed rgba(255,255,255,0.08);
  transition: all 0.2s;
}
.sidebar-card ul li:last-child a { border-bottom: none; }
.sidebar-card ul li a i {
  font-size: 11px;
  color: var(--accent);
  flex-shrink: 0;
}
.sidebar-card ul li a:hover { color: var(--accent-light); padding-left: 4px; }

.sidebar-info .info-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 0;
  color: rgba(255,255,255,0.7);
  font-size: 14px;
  border-bottom: 1px dashed rgba(255,255,255,0.08);
}
.sidebar-info .info-row:last-child { border-bottom: none; }
.sidebar-info .info-row i {
  color: var(--accent);
  width: 18px;
  text-align: center;
}

.sidebar-contact .contact-box {
  background: rgba(201,164,92,0.1);
  border: 1px solid rgba(201,164,92,0.3);
  border-radius: 8px;
  padding: 18px;
  text-align: center;
  margin-top: 12px;
}
.sidebar-contact .contact-box p {
  color: rgba(255,255,255,0.7);
  font-size: 14px;
  margin-bottom: 6px;
}
.sidebar-contact .contact-box strong {
  color: var(--accent-light);
  font-size: 18px;
  font-weight: 700;
}

/* ==== Related Section ==== */
.related-section {
  padding: 70px 0;
  background: var(--white);
}
.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 36px;
}
.section-head h2 {
  font-size: 28px;
  font-weight: 800;
  color: var(--primary);
  position: relative;
  padding-left: 16px;
}
.section-head h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 4px;
  background: var(--accent);
  border-radius: 2px;
}
.section-head .more-link {
  color: var(--accent-dark);
  font-size: 14px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.2s;
}
.section-head .more-link:hover { gap: 10px; }

.related-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.related-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: all 0.35s;
  display: flex;
  flex-direction: column;
  height: 100%;
}
.related-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(201,164,92,0.4);
}
.related-card .rc-cover {
  height: 180px;
  background-size: cover;
  background-position: center;
  position: relative;
  overflow: hidden;
}
.related-card .rc-cover::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 30%, rgba(8,26,44,0.5));
  transition: background 0.3s;
}
.related-card:hover .rc-cover::after {
  background: linear-gradient(to bottom, transparent 20%, rgba(8,26,44,0.7));
}
.related-card .rc-body {
  padding: 20px 22px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.related-card .rc-cat {
  font-size: 12px;
  font-weight: 600;
  color: var(--accent-dark);
  background: rgba(201,164,92,0.1);
  padding: 4px 10px;
  border-radius: 4px;
  align-self: flex-start;
  margin-bottom: 10px;
}
.related-card .rc-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.5;
  margin-bottom: 12px;
  transition: color 0.2s;
}
.related-card a:hover .rc-title { color: var(--accent-dark); }
.related-card .rc-date {
  font-size: 13px;
  color: var(--text-light);
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: auto;
}

/* ==== FAQ ==== */
.faq-section {
  padding: 70px 0;
  background: var(--bg-light);
}
.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 36px;
}
.faq-item {
  background: var(--white);
  border-radius: var(--radius);
  padding: 26px 28px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: all 0.3s;
}
.faq-item:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}
.faq-item h3 {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 17px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 10px;
  line-height: 1.5;
}
.faq-item h3 i {
  color: var(--accent);
  font-size: 16px;
  flex-shrink: 0;
  margin-top: 3px;
}
.faq-item p {
  font-size: 15px;
  color: var(--text-soft);
  line-height: 1.8;
  padding-left: 28px;
}

/* ==== CTA ==== */
.cta-section {
  position: relative;
  background:
    linear-gradient(135deg, rgba(8,26,44,0.94) 0%, rgba(15,42,67,0.88) 100%),
    url('/assets/images/backpic/back-1.png') center/cover fixed;
  padding: 80px 0;
  color: var(--white);
  text-align: center;
}
.cta-section h2 {
  font-size: clamp(26px, 4vw, 36px);
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}
.cta-section p {
  font-size: 16px;
  color: rgba(255,255,255,0.75);
  max-width: 640px;
  margin: 0 auto 36px;
  line-height: 1.8;
}
.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.cta-note {
  margin-top: 24px;
  font-size: 14px;
  color: rgba(255,255,255,0.5);
}

/* ==== Footer ==== */
.site-footer {
  background: var(--primary-dark);
  color: rgba(255,255,255,0.65);
  padding: 60px 0 24px;
  border-top: 3px solid var(--accent);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand .logo {
  font-size: 20px;
  margin-bottom: 16px;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255,255,255,0.55);
  max-width: 320px;
}
.footer-col h4 {
  color: var(--white);
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 8px;
}
.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 28px;
  height: 2px;
  background: var(--accent);
}
.footer-col ul li {
  margin-bottom: 10px;
}
.footer-col ul li a {
  color: rgba(255,255,255,0.55);
  font-size: 14px;
  transition: all 0.25s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.footer-col ul li a::before {
  content: '\f105';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  font-size: 11px;
  color: var(--accent);
}
.footer-col ul li a:hover {
  color: var(--accent-light);
  padding-left: 4px;
}
.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(255,255,255,0.55);
  font-size: 14px;
  margin-bottom: 12px;
}
.footer-contact li i {
  color: var(--accent);
  width: 16px;
  text-align: center;
}
.footer-bottom {
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 13px;
  color: rgba(255,255,255,0.35);
}

/* ==== Responsive ==== */
@media (max-width: 1024px) {
  .article-layout {
    grid-template-columns: 1fr;
  }
  .article-sidebar {
    position: static;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 20px;
  }
  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  .header-cta { display: none; }
  .nav-toggle {
    display: flex;
  }
  .site-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 320px;
    background: var(--primary-dark);
    padding: 80px 24px 24px;
    flex-direction: column;
    align-items: flex-start;
    transform: translateX(100%);
    transition: transform 0.35s;
    z-index: 1500;
    box-shadow: -10px 0 30px rgba(0,0,0,0.4);
    overflow-y: auto;
  }
  .site-nav.open {
    transform: translateX(0);
  }
  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    width: 100%;
  }
  .nav-item {
    width: 100%;
  }
  .nav-item > a {
    width: 100%;
    padding: 14px 10px;
    font-size: 16px;
  }
  .has-mega .mega-panel {
    position: static;
    width: 100%;
    transform: none;
    box-shadow: none;
    border: none;
    border-left: 2px solid var(--accent);
    border-radius: 0;
    opacity: 1;
    visibility: visible;
    padding: 12px 0 12px 16px;
    display: none;
    margin-top: 4px;
    background: transparent;
  }
  .has-mega .mega-panel::before { display: none; }
  .has-mega.open .mega-panel {
    display: flex;
    flex-direction: column;
  }
  .mega-col h4 {
    color: rgba(255,255,255,0.7);
    border-bottom-color: rgba(201,164,92,0.4);
  }
  .mega-col ul li a {
    color: rgba(255,255,255,0.6);
  }
  .article-banner {
    padding: 56px 0 48px;
    background-attachment: scroll;
  }
  .article-main {
    padding: 28px 22px;
  }
  .article-sidebar {
    grid-template-columns: 1fr;
  }
  .faq-grid {
    grid-template-columns: 1fr;
  }
  .cta-section {
    padding: 56px 0;
    background-attachment: scroll;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .header-inner { height: 64px; }
  .logo { font-size: 18px; }
  .related-grid {
    grid-template-columns: 1fr;
  }
  .banner-title {
    font-size: 24px;
  }
  .article-content {
    font-size: 15px;
    line-height: 1.9;
  }
  .article-content h2 { font-size: 20px; }
  .article-content h3 { font-size: 18px; }
  .section-head h2 { font-size: 22px; }
  .cta-site h2 { font-size: 24px; }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .nav-item > a { padding: 10px 12px; font-size: 15px; }
}

/* ==== Focus Accessibility ==== */
a:focus-visible, button:focus-visible {
  outline: 3px solid rgba(201,164,92,0.6);
  outline-offset: 2px;
}

/* ==== Scrollbar ==== */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg-light); }
::-webkit-scrollbar-thumb {
  background: color-mix(in srgb, var(--accent) 50%, transparent);
  border-radius: 5px;
}
::-webkit-scrollbar-thumb:hover { background: var(--accent); }