/* roulang page: index */
:root {
  --primary: #0a2a44;
  --primary-dark: #071e32;
  --primary-light: #123a5c;
  --accent: #c9a05c;
  --accent-light: #e0c88a;
  --danger: #e05d54;
  --bg-body: #f4f6f9;
  --bg-dark: #0d1f30;
  --bg-white: #ffffff;
  --text-main: #172a3c;
  --text-weak: #5f7285;
  --border-color: #dde4ec;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 4px 14px rgba(7, 30, 50, .06);
  --shadow-md: 0 14px 34px rgba(7, 30, 50, .10);
  --shadow-lg: 0 24px 56px rgba(7, 30, 50, .15);
  --font-sans: "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
body {
  font-family: var(--font-sans);
  background: var(--bg-body);
  color: var(--text-main);
  line-height: 1.65;
  margin: 0;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; transition: color .2s ease; }
img { max-width: 100%; height: auto; display: block; }
button { font-family: inherit; }
input, textarea { font-family: inherit; }
.container { max-width: 1200px; padding-left: 24px; padding-right: 24px; }
.section { padding: 80px 0; }
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .12em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-label::before {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--accent);
  display: inline-block;
}
.section-header {
  margin-bottom: 44px;
}
.section-header h2 {
  font-size: 34px;
  font-weight: 700;
  color: var(--primary-dark);
  line-height: 1.3;
  margin-bottom: 12px;
  letter-spacing: -.02em;
}
.section-header .lead {
  color: var(--text-weak);
  font-size: 16px;
  max-width: 640px;
}
.btn {
  border-radius: 50px;
  padding: 10px 24px;
  font-weight: 600;
  font-size: 15px;
  border: 2px solid transparent;
  transition: all .25s ease;
}
.btn:focus, .btn:focus-visible { outline: none; box-shadow: 0 0 0 4px rgba(201, 160, 92, .3); }
.btn-solid {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.btn-solid:hover { background: #b48b45; border-color: #b48b45; color: #fff; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(201, 160, 92, .35); }
.btn-outline {
  border-color: rgba(255, 255, 255, .5);
  color: #fff;
  background: transparent;
}
.btn-outline:hover { border-color: #fff; background: rgba(255, 255, 255, .1); color: #fff; }
.btn-dark {
  background: var(--primary-dark);
  color: #fff;
  border-color: var(--primary-dark);
}
.btn-dark:hover { background: var(--primary-light); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(10, 42, 68, .3); }

/* Floating Dock Navigation */
.site-header {
  position: fixed;
  top: 16px;
  left: 0;
  right: 0;
  z-index: 1050;
  pointer-events: none;
}
.nav-dock-wrap { pointer-events: auto; }
.nav-dock {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(10, 34, 56, .92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: 56px;
  padding: 10px 16px 10px 24px;
  box-shadow: 0 12px 36px rgba(7, 30, 50, .28);
  min-height: 60px;
}
.brand {
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  letter-spacing: .02em;
  white-space: nowrap;
}
.brand:hover { color: var(--accent-light); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: 12px;
  flex: 1;
  justify-content: center;
}
.nav-link {
  padding: 8px 18px;
  border-radius: 30px;
  color: rgba(255, 255, 255, .82);
  font-size: 15px;
  font-weight: 500;
  transition: all .25s ease;
  white-space: nowrap;
}
.nav-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, .08);
}
.nav-link.active {
  color: #fff;
  background: rgba(201, 160, 92, .25);
}
.btn-dock {
  background: var(--accent);
  color: #fff;
  border-radius: 40px;
  padding: 8px 22px;
  font-size: 14px;
  font-weight: 600;
}
.btn-dock:hover { background: #b48b45; color: #fff; }
.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: none;
  background: transparent;
  border-radius: 50%;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: #fff;
  border-radius: 4px;
  transition: transform .3s ease, opacity .3s ease;
}
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Hero */
.hero {
  position: relative;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 140px 0 100px;
  color: #fff;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, rgba(7, 30, 50, .92) 0%, rgba(7, 30, 50, .75) 50%, rgba(7, 30, 50, .45) 100%);
  z-index: 1;
}
.hero .container { position: relative; z-index: 2; }
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, .1);
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 40px;
  padding: 6px 18px;
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--accent-light);
  margin-bottom: 22px;
  font-weight: 500;
}
.hero-tag::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--danger);
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 8px rgba(224, 93, 84, .7);
}
.hero h1 {
  font-size: 58px;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -.02em;
  margin-bottom: 16px;
}
.hero h1 span {
  color: var(--accent);
}
.hero .hero-sub {
  font-size: 18px;
  color: rgba(255, 255, 255, .75);
  max-width: 560px;
  margin-bottom: 30px;
  line-height: 1.7;
}
.hero-buttons { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 40px; }
.hero-card {
  background: rgba(255, 255, 255, .08);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: var(--radius-lg);
  padding: 26px;
  position: relative;
}
.hero-card-dot {
  width: 10px;
  height: 10px;
  background: var(--accent);
  border-radius: 50%;
  margin-bottom: 14px;
  box-shadow: 0 0 0 4px rgba(201, 160, 92, .2);
}
.hero-card h3 {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 10px;
}
.hero-card p {
  font-size: 14px;
  color: rgba(255, 255, 255, .7);
  margin: 0;
  line-height: 1.7;
}
.hero-metrics {
  display: flex;
  gap: 28px;
  margin-top: 40px;
  flex-wrap: wrap;
}
.hero-metrics .metric { position: relative; padding-left: 16px; }
.hero-metrics .metric::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 3px;
  background: var(--accent);
  border-radius: 3px;
}
.hero-metrics .metric strong {
  display: block;
  font-size: 24px;
  font-weight: 700;
  color: #fff;
}
.hero-metrics .metric span {
  font-size: 13px;
  color: rgba(255, 255, 255, .6);
}

/* About */
.about-section { background: #fff; }
.about-image-wrap {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  position: relative;
}
.about-image-wrap::after {
  content: "3044永利集团";
  position: absolute;
  left: 16px;
  bottom: 16px;
  background: rgba(7, 30, 50, .8);
  color: #fff;
  padding: 8px 16px;
  border-radius: 30px;
  font-size: 13px;
  letter-spacing: .04em;
  backdrop-filter: blur(6px);
}
.about-content h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--primary-dark);
  line-height: 1.35;
  margin-bottom: 18px;
}
.about-content p {
  color: var(--text-weak);
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 20px;
}
.about-points {
  list-style: none;
  padding: 0;
  margin: 0 0 28px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}
.about-points li {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-main);
  font-weight: 500;
  font-size: 15px;
}
.about-points li i { color: var(--accent); font-size: 18px; }

/* Stats */
.stats-section { background: var(--bg-dark); position: relative; padding: 72px 0; }
.stats-section .section-label { color: var(--accent-light); }
.stats-section .section-label::before { background: var(--accent-light); }
.stats-section h2 { color: #fff; }
.stats-panel {
  background: rgba(255, 255, 255, .05);
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: var(--radius-lg);
  padding: 32px;
}
.stat-item {
  text-align: center;
  padding: 24px 12px;
  position: relative;
}
.stat-item::after {
  content: "";
  position: absolute;
  right: 0;
  top: 25%;
  bottom: 25%;
  width: 1px;
  background: rgba(255, 255, 255, .1);
}
.stat-item:last-child::after { display: none; }
.stat-num {
  font-size: 44px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.2;
  letter-spacing: -.02em;
}
.stat-num i { font-size: 24px; font-style: normal; color: var(--accent-light); }
.stat-label {
  color: rgba(255, 255, 255, .6);
  font-size: 14px;
  margin-top: 6px;
  letter-spacing: .04em;
}

/* Industries */
.industries-section { background: var(--bg-body); }
.industry-card {
  display: block;
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all .3s ease;
  height: 100%;
  border: 1px solid var(--border-color);
}
.industry-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(201, 160, 92, .4);
}
.industry-card .industry-img {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  position: relative;
}
.industry-card .industry-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.industry-card:hover .industry-img img { transform: scale(1.06); }
.industry-card .industry-body { padding: 22px 24px 26px; }
.industry-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(201, 160, 92, .12);
  color: #a3823f;
  font-size: 12px;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 20px;
  margin-bottom: 12px;
  letter-spacing: .04em;
}
.industry-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 10px;
}
.industry-card p {
  color: var(--text-weak);
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 16px;
}
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  font-weight: 600;
  font-size: 14px;
}
.card-link i { transition: transform .25s ease; }
.industry-card:hover .card-link { color: var(--accent); }
.industry-card:hover .card-link i { transform: translateX(4px); }

/* News */
.news-section { background: #fff; }
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.news-card {
  background: var(--bg-body);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: all .3s ease;
  display: flex;
  flex-direction: column;
}
.news-card:hover {
  background: #fff;
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
  border-color: rgba(201, 160, 92, .35);
}
.news-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}
.news-category {
  background: rgba(10, 42, 68, .08);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 20px;
}
.news-date {
  color: var(--text-weak);
  font-size: 13px;
}
.news-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.5;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card p {
  color: var(--text-weak);
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 18px;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-read {
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.news-read i { transition: transform .2s ease; }
.news-card:hover .news-read { color: var(--accent); }
.news-card:hover .news-read i { transform: translateX(4px); }
.news-empty {
  background: var(--bg-body);
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-md);
  padding: 60px 24px;
  text-align: center;
  color: var(--text-weak);
  grid-column: 1 / -1;
}

/* Timeline */
.timeline-section { background: var(--bg-dark); position: relative; }
.timeline-section .section-label { color: var(--accent-light); }
.timeline-section .section-label::before { background: var(--accent-light); }
.timeline-section .section-header h2 { color: #fff; }
.timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}
.timeline-item {
  background: rgba(255, 255, 255, .05);
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: var(--radius-md);
  padding: 28px 22px;
  position: relative;
  transition: all .3s ease;
}
.timeline-item:hover {
  background: rgba(255, 255, 255, .09);
  transform: translateY(-4px);
}
.timeline-year {
  font-size: 26px;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 12px;
  display: block;
}
.timeline-item h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}
.timeline-item p {
  color: rgba(255, 255, 255, .55);
  font-size: 13px;
  line-height: 1.6;
  margin: 0;
}

/* Advantages */
.advantages-section { background: var(--bg-body); }
.advantage-card {
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 30px 26px;
  height: 100%;
  transition: all .3s ease;
  position: relative;
  overflow: hidden;
}
.advantage-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 4px;
  height: 100%;
  background: var(--accent);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform .3s ease;
}
.advantage-card:hover::before { transform: scaleY(1); }
.advantage-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}
.advantage-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: rgba(10, 42, 68, .08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: var(--primary);
  margin-bottom: 20px;
  transition: all .3s ease;
}
.advantage-card:hover .advantage-icon {
  background: var(--accent);
  color: #fff;
}
.advantage-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 10px;
}
.advantage-card p {
  color: var(--text-weak);
  font-size: 14px;
  line-height: 1.7;
  margin: 0;
}

/* FAQ */
.faq-section { background: #fff; }
.faq-item {
  background: var(--bg-body);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  overflow: hidden;
  transition: all .3s ease;
}
.faq-item.open {
  border-color: rgba(201, 160, 92, .35);
  box-shadow: var(--shadow-sm);
}
.faq-question {
  width: 100%;
  background: transparent;
  border: none;
  text-align: left;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.faq-question i {
  font-size: 16px;
  color: var(--accent);
  transition: transform .3s ease;
  flex-shrink: 0;
}
.faq-item.open .faq-question i { transform: rotate(45deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease;
}
.faq-answer-inner {
  padding: 0 24px 22px;
  color: var(--text-weak);
  font-size: 14px;
  line-height: 1.8;
}

/* CTA */
.cta-section {
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  position: relative;
  padding: 80px 0;
}
.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(7, 30, 50, .95) 0%, rgba(7, 30, 50, .82) 100%);
}
.cta-section .container { position: relative; z-index: 2; }
.cta-panel {
  background: rgba(255, 255, 255, .06);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: var(--radius-lg);
  padding: 44px;
}
.cta-panel h2 {
  color: #fff;
  font-size: 30px;
  font-weight: 700;
  margin-bottom: 12px;
}
.cta-panel .lead {
  color: rgba(255, 255, 255, .65);
  font-size: 15px;
  line-height: 1.7;
  margin-bottom: 0;
}
.cta-form {
  display: grid;
  gap: 12px;
}
.cta-form input {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, .18);
  background: rgba(255, 255, 255, .1);
  border-radius: 40px;
  padding: 12px 20px;
  color: #fff;
  font-size: 14px;
  transition: all .25s ease;
}
.cta-form input::placeholder { color: rgba(255, 255, 255, .5); }
.cta-form input:focus {
  outline: none;
  border-color: var(--accent);
  background: rgba(255, 255, 255, .16);
  box-shadow: 0 0 0 4px rgba(201, 160, 92, .2);
}

/* Footer */
.site-footer {
  background: var(--bg-dark);
  color: rgba(255, 255, 255, .6);
  padding-top: 64px;
  padding-bottom: 28px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand {
  display: inline-block;
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}
.footer-brand:hover { color: var(--accent-light); }
.footer-grid p {
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 18px;
  max-width: 340px;
}
.footer-social {
  display: flex;
  gap: 10px;
}
.footer-social a {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, .7);
  font-size: 15px;
  transition: all .25s ease;
}
.footer-social a:hover {
  background: var(--accent);
  color: #fff;
  transform: translateY(-3px);
}
.footer-grid h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 20px;
  letter-spacing: .04em;
}
.footer-grid ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-grid ul li { margin-bottom: 12px; }
.footer-grid ul a {
  color: rgba(255, 255, 255, .6);
  font-size: 14px;
  transition: color .2s ease;
}
.footer-grid ul a:hover { color: var(--accent-light); }
.footer-contact-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: rgba(255, 255, 255, .6);
  margin-bottom: 14px;
}
.footer-contact-list li i {
  color: var(--accent);
  margin-top: 4px;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .08);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: rgba(255, 255, 255, .4);
}
.footer-bottom a { color: rgba(255, 255, 255, .5); }
.footer-bottom a:hover { color: var(--accent-light); }

/* Back to top */
.back-top {
  position: fixed;
  right: 24px;
  bottom: 30px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all .3s ease;
  z-index: 999;
  cursor: pointer;
}
.back-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-top:hover { background: var(--accent); color: #fff; }

.vr-divider {
  width: 1px;
  background: rgba(255,255,255,.15);
  flex-shrink: 0;
}

/* Responsive */
@media (max-width: 992px) {
  .section { padding: 60px 0; }
  .hero h1 { font-size: 44px; }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .timeline { grid-template-columns: repeat(2, 1fr); }
  .stats-panel { padding: 20px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
}

@media (max-width: 768px) {
  .section { padding: 48px 0; }
  .section-header h2 { font-size: 26px; }
  .nav-dock { border-radius: 28px; padding: 8px 12px 8px 18px; flex-wrap: wrap; }
  .nav-links {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    margin-left: 0;
    padding: 12px 0 4px;
  }
  .nav-links.open { display: flex; }
  .nav-link {
    width: 100%;
    padding: 10px 16px;
    border-radius: 20px;
  }
  .nav-toggle { display: flex; }
  .btn-dock {
    display: none !important;
  }
  .hero { min-height: auto; padding: 120px 0 70px; }
  .hero h1 { font-size: 34px; }
  .hero .hero-sub { font-size: 16px; }
  .hero-card { margin-top: 24px; }
  .hero-metrics { gap: 16px; }
  .about-image-wrap { margin-bottom: 30px; }
  .industry-card .industry-body { padding: 18px 16px 20px; }
  .news-grid { grid-template-columns: 1fr; }
  .timeline { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .cta-panel { padding: 28px 22px; }
  .cta-panel .lead { margin-bottom: 20px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .back-top { right: 16px; bottom: 16px; width: 40px; height: 40px; }
  .stat-num { font-size: 34px; }
  .stat-item::after { display: none; }
}

@media (max-width: 520px) {
  .container { padding-left: 16px; padding-right: 16px; }
  .hero h1 { font-size: 30px; }
  .hero .hero-sub { font-size: 15px; }
  .hero-buttons .btn { width: 100%; margin-bottom: 8px; }
  .section-label { font-size: 12px; }
  .stats-panel { padding: 12px; }
  .stat-item { padding: 18px 6px; }
  .timeline-item { padding: 22px 16px; }
  .advantage-card { padding: 22px 18px; }
  .faq-question { padding: 16px 16px; font-size: 15px; }
  .faq-answer-inner { padding: 0 16px 18px; }
  .about-content h2 { font-size: 24px; }
}

/* roulang page: category1 */
:root {
    --primary: #0a1e32;
    --primary-2: #132c47;
    --primary-3: #1d3f62;
    --accent: #d6362b;
    --accent-dark: #b02721;
    --accent-soft: rgba(214, 54, 43, .08);
    --gold: #c9a26a;
    --ink: #152233;
    --muted: #64737f;
    --bg-main: #f6f8fb;
    --bg-white: #ffffff;
    --bg-deep: #0e2438;
    --border: #e4e9f0;
    --radius-m: 12px;
    --radius-l: 20px;
    --shadow-s: 0 4px 16px rgba(14, 36, 56, .06);
    --shadow-m: 0 10px 34px rgba(14, 36, 56, .1);
    --shadow-l: 0 24px 68px rgba(14, 36, 56, .14);
}

*, *::before, *::after { box-sizing: border-box; }
body {
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    background: var(--bg-white);
    color: var(--ink);
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; transition: color .25s ease, background .25s ease; }
img { max-width: 100%; display: block; }
button { border: none; background: none; font: inherit; cursor: pointer; }
ul, ol { margin: 0; padding: 0; list-style: none; }
a:focus-visible, button:focus-visible, input:focus-visible {
    outline: 3px solid rgba(214, 54, 43, .45);
    outline-offset: 2px;
}
.container { max-width: 1200px; }

/* ===== Buttons ===== */
.btn { border-radius: 50px; font-weight: 600; padding: 10px 28px; border: 1px solid transparent; transition: all .25s ease; }
.btn:hover { transform: translateY(-2px); }
.btn-dock {
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    color: #fff;
    border-radius: 50px;
    padding: 9px 24px;
    font-size: 14px;
    font-weight: 600;
    box-shadow: 0 4px 16px rgba(214, 54, 43, .35);
    transition: all .25s ease;
    display: inline-flex;
    align-items: center;
    gap: 7px;
}
.btn-dock:hover { transform: translateY(-2px); color: #fff; box-shadow: 0 8px 22px rgba(214, 54, 43, .45); }
.btn-cta-primary {
    background: var(--accent);
    color: #fff;
    border-radius: 50px;
    padding: 13px 36px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all .25s;
    border: 1px solid transparent;
}
.btn-cta-primary:hover { background: var(--accent-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 10px 26px rgba(214, 54, 43, .4); }
.btn-cta-ghost {
    border: 1px solid rgba(255, 255, 255, .5);
    color: #fff;
    border-radius: 50px;
    padding: 13px 36px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all .25s;
}
.btn-cta-ghost:hover { background: #fff; color: var(--primary); transform: translateY(-2px); }

/* ===== Header / Dock Nav ===== */
.site-header {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1040;
    padding-top: 18px;
}
.nav-dock {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(10, 30, 50, .92);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
    border: 1px solid rgba(255, 255, 255, .12);
    border-radius: 60px;
    padding: 10px 18px 10px 28px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, .2);
    position: relative;
}
.brand {
    color: #fff;
    font-size: 20px;
    font-weight: 800;
    letter-spacing: .03em;
    white-space: nowrap;
}
.brand:hover { color: #fff; }
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-link {
    color: rgba(255, 255, 255, .78);
    font-size: 14px;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 40px;
    transition: all .25s ease;
    white-space: nowrap;
}
.nav-link:hover { color: #fff; background: rgba(255, 255, 255, .08); }
.nav-link.active { color: #fff; background: rgba(255, 255, 255, .12); position: relative; }
.nav-link.active::before {
    content: "";
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%);
    width: 18px;
    height: 3px;
    background: var(--accent);
    border-radius: 4px;
}
.nav-toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.nav-toggle span { width: 20px; height: 2px; background: #fff; border-radius: 4px; transition: all .3s; }
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== Page Banner ===== */
.page-banner {
    position: relative;
    padding: 195px 0 100px;
    background-image: linear-gradient(100deg, rgba(8, 26, 44, .92) 0%, rgba(8, 26, 44, .72) 55%, rgba(8, 26, 44, .4) 100%), url('/assets/images/backpic/back-2.png');
    background-size: cover;
    background-position: center;
    overflow: hidden;
}
.page-banner::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: linear-gradient(rgba(255, 255, 255, .04) 1px, transparent 1px),
                      linear-gradient(90deg, rgba(255, 255, 255, .04) 1px, transparent 1px);
    background-size: 36px 36px;
    z-index: 1;
}
.banner-decor {
    position: absolute;
    right: -80px;
    bottom: -80px;
    width: 340px;
    height: 340px;
    border-radius: 50%;
    border: 42px solid rgba(214, 54, 43, .18);
    z-index: 1;
}
.banner-content { position: relative; z-index: 2; }
.banner-breadcrumb {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, .08);
    border: 1px solid rgba(255, 255, 255, .16);
    border-radius: 60px;
    padding: 8px 20px;
    margin-bottom: 28px;
    font-size: 13px;
    font-weight: 500;
}
.banner-breadcrumb a { color: rgba(255, 255, 255, .7); }
.banner-breadcrumb i { font-size: 11px; color: rgba(255, 255, 255, .5); }
.banner-breadcrumb .current { color: var(--accent); font-weight: 700; }
.banner-title {
    font-size: 46px;
    font-weight: 800;
    color: #fff;
    line-height: 1.2;
    margin: 0 0 18px;
    letter-spacing: .02em;
}
.banner-sub {
    font-size: 17px;
    color: rgba(255, 255, 255, .78);
    max-width: 680px;
    line-height: 1.8;
    margin-bottom: 32px;
}
.banner-badges { display: flex; flex-wrap: wrap; gap: 12px; }
.banner-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: 1px solid rgba(255, 255, 255, .2);
    background: rgba(255, 255, 255, .08);
    border-radius: 60px;
    padding: 9px 18px;
    font-size: 13px;
    font-weight: 600;
    color: rgba(255, 255, 255, .9);
}
.banner-badge i { color: var(--accent); font-size: 14px; }

/* ===== Section Common ===== */
.section-pad { padding: 96px 0; }
.sections-alt { background: var(--bg-main); }
.section-head { max-width: 760px; margin-bottom: 46px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.kicker {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: .16em;
    color: var(--accent);
    text-transform: uppercase;
    margin-bottom: 14px;
}
.marker-dot {
    width: 7px;
    height: 7px;
    background: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 0 4px rgba(214, 54, 43, .15);
    display: inline-block;
    flex-shrink: 0;
}
.section-head h2 {
    font-size: 34px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1.25;
    margin: 0 0 14px;
    letter-spacing: .01em;
}
.section-desc {
    font-size: 16px;
    color: var(--muted);
    max-width: 640px;
    margin-bottom: 0;
    line-height: 1.8;
}
.section-head.center .section-desc { margin-left: auto; margin-right: auto; truncate: none; }

/* ===== About / Category Intro ===== */
.about-visual {
    position: relative;
    border-radius: var(--radius-l);
    overflow: hidden;
    box-shadow: var(--shadow-l);
    height: 440px;
}
.about-visual img { width: 100%; height: 100%; object-fit: cover; }
.about-visual::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 52%, rgba(8, 26, 44, .32));
    pointer-events: none;
}
.exp-badge {
    position: absolute;
    right: 18px;
    bottom: 18px;
    background: var(--accent);
    color: #fff;
    border-radius: 16px;
    padding: 18px 26px;
    display: flex;
    flex-direction: column;
    align-items: center;
    box-shadow: var(--shadow-l);
    min-width: 96px;
    z-index: 2;
}
.exp-badge span { font-size: 30px; font-weight: 800; line-height: 1; }
.exp-badge em { font-style: normal; font-size: 13px; opacity: .85; margin-top: 6px; }
.about-content h2 {
    font-size: 34px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1.3;
    margin: 0 0 20px;
}
.lead-text {
    font-size: 17px;
    line-height: 1.8;
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 16px;
}
.about-content p { font-size: 15px; line-height: 1.85; color: var(--muted); margin-bottom: 16px; }
.about-content p:last-of-type { margin-bottom: 24px; }
.about-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.tag-item {
    display: inline-block;
    background: var(--accent-soft);
    border: 1px solid rgba(214, 54, 43, .14);
    color: var(--accent);
    font-size: 13px;
    font-weight: 600;
    padding: 7px 18px;
    border-radius: 40px;
    transition: all .25s;
}
.tag-item:hover { background: var(--accent); color: #fff; border-color: var(--accent); }

/* ===== Business Cards ===== */
.business-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-m);
    padding: 30px;
    height: 100%;
    position: relative;
    overflow: hidden;
    transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.business-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 4px;
    background: var(--accent);
    transition: width .45s ease;
}
.business-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-m); border-color: #d8e0ea; }
.business-card:hover::before { width: 100%; }
.card-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.card-icon {
    width: 52px;
    height: 52px;
    background: var(--accent-soft);
    border-radius: 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 21px;
    color: var(--accent);
    transition: all .25s ease;
}
.business-card:hover .card-icon { background: var(--accent); color: #fff; }
.card-code { font-family: "Courier New", monospace; font-size: 12px; letter-spacing: .1em; color: #a4b3c2; font-weight: 700; }
.business-card h3 { font-size: 19px; font-weight: 700; color: var(--ink); margin-bottom: 10px; }
.business-card p { font-size: 14px; color: var(--muted); line-height: 1.75; margin-bottom: 18px; }
.card-more { font-size: 13px; font-weight: 600; color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
.card-more i { transition: transform .25s; }
.card-more:hover i { transform: translateX(4px); }

/* ===== Stats Panel ===== */
.stats-section {
    position: relative;
    padding: 96px 0;
    background-color: #0b1c2e;
    background-image: linear-gradient(rgba(8, 26, 44, .91), rgba(8, 26, 44, .94)), url('/assets/images/backpic/back-1.png');
    background-size: cover;
    background-position: center;
    overflow: hidden;
}
.stats-section::after {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--accent) 0%, transparent 100%);
}
.stats-panel {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    position: relative;
    z-index: 2;
}
.stat-item { text-align: center; padding: 10px; position: relative; }
.stat-item:not(:last-child)::after {
    content: "";
    position: absolute;
    right: -16px;
    top: 50%;
    width: 1px;
    height: 70px;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, .16);
}
.stat-num {
    font-size: 46px;
    font-weight: 800;
    color: #fff;
    line-height: 1.2;
    letter-spacing: .01em;
    font-family: "PingFang SC", "Helvetica Neue", Arial, sans-serif;
}
.stat-num em { font-style: normal; font-size: 20px; color: var(--gold); font-weight: 600; margin-left: 3px; }
.stat-label { color: rgba(255, 255, 255, .6); font-size: 14px; margin-top: 8px; letter-spacing: .08em; }

/* ===== Project Cards ===== */
.project-card {
    background: #fff;
    border-radius: var(--radius-l);
    overflow: hidden;
    height: 100%;
    box-shadow: var(--shadow-s);
    border: 1px solid var(--border);
    transition: transform .3s ease, box-shadow .3s ease;
}
.project-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-m); }
.project-thumb { position: relative; height: 220px; overflow: hidden; }
.project-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.project-card:hover .project-thumb img { transform: scale(1.06); }
.project-thumb::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(0deg, rgba(8, 26, 44, .28), transparent 55%);
}
.project-tag {
    position: absolute;
    left: 16px;
    bottom: 16px;
    background: rgba(255, 255, 255, .92);
    color: var(--primary);
    font-size: 12px;
    font-weight: 700;
    padding: 6px 14px;
    border-radius: 40px;
    z-index: 2;
}
.project-body { padding: 26px; }
.project-body h3 { font-size: 20px; font-weight: 700; color: var(--ink); margin-bottom: 10px; }
.project-body > p { font-size: 14px; line-height: 1.75; color: var(--muted); margin-bottom: 16px; }
.project-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    padding-top: 14px;
    border-top: 1px dashed var(--border);
    margin-bottom: 14px;
    font-size: 13px;
    color: #76869a;
}
.project-meta i { color: var(--accent); margin-right: 4px; }
.project-labels { display: flex; flex-wrap: wrap; gap: 8px; }
.label-dot {
    display: inline-block;
    background: #f0f3f8;
    font-size: 12px;
    font-weight: 600;
    color: var(--primary-3);
    padding: 6px 14px;
    border-radius: 40px;
}

/* ===== Process ===== */
.process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.process-item {
    background: #fff;
    border-radius: var(--radius-m);
    padding: 30px 26px;
    position: relative;
    border: 1px solid var(--border);
    transition: box-shadow .3s ease, border-color .3s ease;
}
.process-item:hover { box-shadow: var(--shadow-m); border-color: rgba(214, 54, 43, .25); }
.process-no {
    font-size: 42px;
    font-weight: 800;
    color: transparent;
    -webkit-text-stroke: 2px #d8e0ea;
    line-height: 1;
    position: absolute;
    right: 20px;
    top: 18px;
    font-family: "Courier New", monospace;
}
.process-icon {
    width: 54px;
    height: 54px;
    background: var(--accent);
    border-radius: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 22px;
    margin-bottom: 18px;
    box-shadow: 0 6px 18px rgba(214, 54, 43, .3);
}
.process-item h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; color: var(--ink); }
.process-item p { font-size: 14px; line-height: 1.7; color: var(--muted); margin-bottom: 0; }
@media (min-width: 992px) {
    .process-item:not(:last-child)::after {
        content: "";
        position: absolute;
        right: -22px;
        top: 60px;
        width: 22px;
        height: 1px;
        background: repeating-linear-gradient(90deg, var(--accent) 0 5px, transparent 5px 9px);
    }
}

/* ===== FAQ ===== */
.accordion-item {
    border: 1px solid var(--border);
    border-radius: 14px !important;
    overflow: hidden;
    margin-bottom: 16px;
    background: #fff;
}
.accordion-item:last-child { margin-bottom: 0; }
.accordion-button {
    background: #fff;
    font-size: 16px;
    font-weight: 600;
    color: var(--ink);
    padding: 20px 24px;
    box-shadow: none;
    border: none;
    position: relative;
}
.accordion-button:not(.collapsed) { color: var(--accent); background: #fff; box-shadow: none; }
.accordion-button:focus { box-shadow: 0 0 0 3px rgba(214, 54, 43, .15); }
.accordion-button::after {
    background: none;
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    content: "\f107";
    color: var(--accent);
    font-size: 15px;
    width: 1.25rem;
    height: 1.25rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: transform .3s ease;
}
.accordion-button:not(.collapsed)::after { transform: rotate(180deg); }
.accordion-body { padding: 0 24px 24px; color: var(--muted); line-height: 1.8; font-size: 15px; }

/* ===== CTA ===== */
.cta-section {
    position: relative;
    padding: 90px 0;
    background-image: linear-gradient(100deg, rgba(10, 30, 50, .96), rgba(10, 30, 50, .84)), url('/assets/images/backpic/back-3.png');
    background-size: cover;
    background-position: center;
}
.cta-panel {
    background: rgba(255, 255, 255, .06);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, .14);
    border-radius: var(--radius-l);
    padding: 60px;
    text-align: center;
}
.cta-panel h2 { color: #fff; font-size: 32px; font-weight: 800; margin-bottom: 8px; }
.cta-panel .cta-lead { color: rgba(255, 255, 255, .75); max-width: 560px; margin: 14px auto 30px; font-size: 16px; line-height: 1.8; }
.cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ===== Footer ===== */
.site-footer {
    background: #0a1b2d;
    color: rgba(255, 255, 255, .65);
    padding: 70px 0 28px;
    position: relative;
}
.site-footer::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent), transparent);
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1.2fr;
    gap: 40px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255, 255, 255, .1);
}
.footer-brand {
    color: #fff;
    font-size: 24px;
    font-weight: 800;
    letter-spacing: .02em;
    display: inline-block;
    margin-bottom: 16px;
}
.footer-brand:hover { color: #fff; }
.footer-grid p { font-size: 14px; line-height: 1.8; max-width: 360px; }
.footer-social { display: flex; gap: 10px; margin-top: 18px; }
.footer-social a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, .08);
    border: 1px solid rgba(255, 255, 255, .1);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, .75);
    font-size: 14px;
    transition: all .25s;
}
.footer-social a:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
.site-footer h4 { color: #fff; font-size: 16px; font-weight: 600; margin-bottom: 18px; }
.footer-links li + li { margin-top: 10px; }
.footer-links a { color: rgba(255, 255, 255, .65); font-size: 14px; transition: color .25s, padding-left .25s; }
.footer-links a:hover { color: #fff; padding-left: 4px; }
.footer-contact-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 14px;
    margin-bottom: 14px;
    color: rgba(255, 255, 255, .65);
}
.footer-contact-list i { color: var(--accent); margin-top: 4px; }
.footer-bottom {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    padding-top: 26px;
    font-size: 13px;
    color: rgba(255, 255, 255, .4);
}

/* ===== Responsive ===== */
@media (max-width: 991.98px) {
    .nav-toggle { display: flex; }
    .nav-links {
        position: absolute;
        top: calc(100% + 12px);
        left: 12px;
        right: 12px;
        background: rgba(10, 30, 50, .97);
        border-radius: 20px;
        padding: 16px;
        flex-direction: column;
        align-items: stretch;
        display: none;
        gap: 6px;
        border: 1px solid rgba(255, 255, 255, .12);
        box-shadow: 0 20px 50px rgba(0, 0, 0, .3);
    }
    .nav-links.open { display: flex; }
    .btn-dock { display: none; }
    .nav-dock { border-radius: 28px; padding: 10px 18px; }
    .page-banner { padding: 150px 0 76px; }
    .banner-title { font-size: 36px; }
    .section-pad { padding: 70px 0; }
    .section-head h2 { font-size: 28px; }
    .about-visual { height: 360px; }
    .stats-panel { grid-template-columns: repeat(2, 1fr); gap: 30px 20px; }
    .stat-item:not(:last-child)::after { display: none; }
    .process-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .cta-panel { padding: 44px 26px; }
}
@media (max-width: 767.98px) {
    .page-banner { padding: 128px 0 60px; }
    .banner-title { font-size: 30px; }
    .banner-sub { font-size: 15px; }
    .banner-badges { gap: 8px; }
    .banner-badge { font-size: 12px; padding: 7px 14px; }
    .section-pad { padding: 56px 0; }
    .section-head { margin-bottom: 32px; }
    .section-head h2 { font-size: 24px; }
    .about-visual { height: 280px; }
    .about-content h2 { font-size: 26px; }
    .stats-section { padding: 64px 0; }
    .stat-num { font-size: 34px; }
    .process-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; padding-bottom: 32px; }
    .footer-bottom { justify-content: center; text-align: center; }
}
@media (max-width: 520px) {
    .nav-dock { border-radius: 22px; padding: 9px 14px; }
    .brand { font-size: 17px; }
    .page-banner { padding: 118px 0 52px; }
    .banner-title { font-size: 26px; }
    .banner-sub { font-size: 14px; line-height: 1.75; }
    .banner-badges { flex-direction: column; align-items: flex-start; }
    .section-head h2 { font-size: 22px; }
    .cta-panel h2 { font-size: 26px; }
    .cta-actions { flex-direction: column; align-items: stretch; }
    .btn-cta-primary, .btn-cta-ghost { justify-content: center; }
    .stat-num { font-size: 28px; }
    .stat-label { font-size: 13px; }
    .business-card { padding: 22px; }
    .project-thumb { height: 190px; }
}

/* roulang page: article */
:root {
  --primary: #0c1e3a;
  --primary-2: #132c50;
  --accent: #d4a95e;
  --accent-2: #b88944;
  --bg: #f5f7fa;
  --bg-dark: #0b1628;
  --text: #1c2233;
  --text-light: #5f6b7f;
  --border: #e2e8f0;
  --white: #ffffff;
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 14px 44px rgba(12, 30, 58, .08);
  --shadow-lg: 0 24px 72px rgba(12, 30, 58, .14);
  --transition: .28s ease;
  --font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
}
*,
*::before,
*::after {
  box-sizing: border-box;
}
body {
  font-family: var(--font-family);
  font-size: 15px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
}
img {
  max-width: 100%;
  display: block;
}
button,
input {
  font-family: inherit;
}
.container {
  max-width: 1180px;
  padding-left: 24px;
  padding-right: 24px;
}
.site-header {
  position: relative;
  z-index: 1000;
  padding-top: 20px;
  background: transparent;
}
.nav-dock-wrap {
  max-width: 1180px;
}
.nav-dock {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 18px;
  padding: 14px 24px;
  box-shadow: 0 8px 30px rgba(12, 30, 58, .07);
  border: 1px solid rgba(255, 255, 255, .6);
}
.brand {
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: 1px;
  line-height: 1.2;
  white-space: nowrap;
}
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  padding: 8px 4px;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all .3s ease;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 34px;
}
.nav-link {
  display: inline-block !important;
  padding: 8px 2px !important;
  font-size: 15px !important;
  font-weight: 600 !important;
  color: var(--text) !important;
  position: relative;
  transition: color .25s ease;
  background: none !important;
  border: 0 !important;
}
.nav-link:hover {
  color: var(--accent) !important;
}
.nav-link.active {
  color: var(--primary) !important;
}
.nav-link.active::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}
.btn {
  border-radius: 40px;
  padding: 12px 26px;
  font-size: 15px;
  font-weight: 600;
  transition: all .28s ease;
}
.btn:hover,
.btn:focus {
  transform: translateY(-2px);
}
.btn:focus-visible {
  outline: 3px solid rgba(212, 169, 94, .45);
  outline-offset: 2px;
}
.btn-dock {
  background: var(--primary);
  color: #fff;
  border: 0;
  border-radius: 40px;
  padding: 10px 22px;
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  transition: all .28s ease;
  display: inline-block;
}
.btn-dock:hover {
  background: var(--accent-2);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(184, 137, 68, .35);
}
.btn-accent {
  background: var(--accent);
  color: #fff;
  border: 0;
}
.btn-accent:hover {
  background: var(--accent-2);
  color: #fff;
  box-shadow: 0 10px 28px rgba(212, 169, 94, .35);
}
.btn-outline-brand {
  background: transparent;
  border: 2px solid var(--primary);
  color: var(--primary);
}
.btn-outline-brand:hover {
  background: var(--primary);
  color: #fff;
}
.btn-outline-light-custom {
  background: transparent;
  border: 2px solid rgba(255, 255, 255, .6);
  color: #fff;
}
.btn-outline-light-custom:hover {
  background: #fff;
  color: var(--primary);
  border-color: #fff;
}
.article-hero {
  position: relative;
  padding: 96px 0 88px;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  color: #fff;
  border-radius: 0 0 28px 28px;
  margin-top: -74px;
}
.article-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(11, 24, 42, .93) 0%, rgba(11, 24, 42, .74) 48%, rgba(11, 24, 42, .88) 100%);
  border-radius: inherit;
}
.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 880px;
  margin: 0 auto;
}
.breadcrumb-nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13.5px;
  color: rgba(255, 255, 255, .75);
  margin-bottom: 20px;
}
.breadcrumb-nav a {
  color: rgba(255, 255, 255, .9);
  transition: color .25s;
}
.breadcrumb-nav a:hover {
  color: var(--accent);
}
.breadcrumb-nav .sep {
  opacity: .55;
}
.article-hero h1 {
  font-size: 38px;
  font-weight: 800;
  line-height: 1.32;
  margin: 0 0 24px;
  letter-spacing: 1px;
  text-wrap: balance;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.meta-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
  background: rgba(255, 255, 255, .12);
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 40px;
  padding: 7px 16px;
  backdrop-filter: blur(8px);
}
.meta-badge i {
  color: var(--accent);
}
.post-section {
  padding: 64px 0 56px;
}
.post-card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  padding: 48px;
  margin-bottom: 30px;
}
.post-header h1 {
  font-size: 30px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.42;
  margin-bottom: 18px;
}
.post-meta-info {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 32px;
}
.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-light);
}
.meta-item i {
  color: var(--accent);
}
.post-body {
  font-size: 16px;
  line-height: 1.95;
  color: var(--text);
}
.post-body h2 {
  font-size: 25px;
  font-weight: 800;
  color: var(--primary);
  margin: 1.8em 0 .8em;
}
.post-body h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
  margin: 1.6em 0 .7em;
}
.post-body p {
  margin-bottom: 1.5em;
}
.post-body img {
  max-width: 100%;
  border-radius: 12px;
  margin: 24px 0;
}
.post-body ul,
.post-body ol {
  margin-bottom: 1.5em;
  padding-left: 1.4em;
}
.post-body ul li,
.post-body ol li {
  margin-bottom: .45em;
}
.post-empty {
  background: #fafbfd;
  border-radius: var(--radius-sm);
  border: 1px dashed var(--border);
  padding: 36px 24px;
  text-align: center;
  color: var(--text-light);
  font-size: 15px;
}
.post-tags {
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.post-tags-label {
  font-weight: 600;
  color: var(--text-light);
  font-size: 14px;
  margin-right: 4px;
}
.post-tags .tag {
  display: inline-block;
  font-size: 13px;
  padding: 6px 16px;
  border-radius: 40px;
  background: rgba(212, 169, 94, .12);
  color: #9c7a3f;
  font-weight: 600;
}
.post-not-found {
  padding: 50px 20px;
}
.not-found-icon {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  background: rgba(212, 169, 94, .12);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 40px;
  margin: 0 auto 26px;
}
.post-not-found h2 {
  font-size: 28px;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 12px;
}
.post-not-found p {
  color: var(--text-light);
  margin-bottom: 22px;
}
.side-card {
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  padding: 28px;
  margin-bottom: 24px;
}
.side-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
  position: relative;
}
.side-card h3::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 38px;
  height: 2px;
  background: var(--accent);
}
.side-brand-card {
  text-align: center;
}
.brand-icon {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  background: var(--primary);
  color: var(--accent);
  font-size: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 18px;
}
.side-brand-card h3 {
  border-bottom: 0;
  padding-bottom: 0;
  text-align: center;
  margin-bottom: 10px;
}
.side-brand-card h3::after {
  display: none;
}
.side-brand-card p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 20px;
}
.side-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.side-list li {
  border-bottom: 1px solid #f0f3f8;
}
.side-list li:last-child {
  border-bottom: 0;
}
.side-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 2px;
  color: var(--text);
  font-size: 14.5px;
  font-weight: 500;
  transition: all .25s ease;
}
.side-list a:hover {
  color: var(--accent-2);
  padding-left: 8px;
}
.side-list a i {
  font-size: 12px;
  color: var(--border);
  transition: color .25s;
}
.side-list a:hover i {
  color: var(--accent);
}
.contact-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.contact-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.6;
  word-break: break-all;
}
.contact-list li i {
  color: var(--accent);
  width: 18px;
  flex-shrink: 0;
  margin-top: 3px;
}
.stats-section {
  padding: 64px 0;
  background-image: url('/assets/images/backpic/back-3.png');
  background-size: cover;
  background-position: center;
  position: relative;
}
.stats-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(11, 22, 40, .9);
}
.stats-section .container {
  position: relative;
  z-index: 2;
}
.stat-card {
  text-align: center;
  padding: 38px 18px;
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .1);
  border-radius: var(--radius);
  backdrop-filter: blur(10px);
  height: 100%;
}
.stat-num {
  font-size: 44px;
  font-weight: 800;
  color: #fff;
  letter-spacing: 1px;
  display: block;
  line-height: 1.2;
}
.stat-label {
  display: block;
  margin-top: 10px;
  font-size: 15px;
  color: rgba(255, 255, 255, .74);
}
.related-section {
  padding: 80px 0;
  background: var(--bg);
}
.section-header {
  text-align: center;
  margin-bottom: 48px;
}
.section-badge {
  display: inline-block;
  background: rgba(212, 169, 94, .14);
  color: var(--accent-2);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  border-radius: 40px;
  padding: 7px 20px;
  margin-bottom: 14px;
}
.section-header h2 {
  font-size: 34px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: 1px;
  margin: 0;
}
.related-card {
  display: block;
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: transform .3s ease, box-shadow .3s ease;
  height: 100%;
}
.related-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.related-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}
.related-body {
  padding: 26px;
}
.related-body .tag {
  display: inline-block;
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 30px;
  background: rgba(212, 169, 94, .14);
  color: #9c7a3f;
  font-weight: 600;
  margin-bottom: 12px;
}
.related-body h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.5;
  margin: 0 0 10px;
  transition: color .25s ease;
}
.related-card:hover .related-body h3 {
  color: var(--accent-2);
}
.related-body p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
  margin: 0;
}
.faq-section {
  padding: 80px 0;
  background: #fff;
}
.faq-accordion {
  max-width: 860px;
  margin: 0 auto;
}
.accordion-item {
  border: 1px solid var(--border) !important;
  border-radius: var(--radius-sm) !important;
  margin-bottom: 16px;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(12, 30, 58, .04);
}
.accordion-button {
  font-size: 16px;
  font-weight: 600;
  color: var(--primary);
  background: #fafbfd;
  padding: 18px 24px;
  border: 0;
  box-shadow: none !important;
}
.accordion-button:not(.collapsed) {
  background: rgba(212, 169, 94, .08);
  color: var(--primary);
}
.accordion-button:focus {
  box-shadow: none !important;
  outline: 2px solid rgba(212, 169, 94, .4);
  outline-offset: -2px;
}
.accordion-body {
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-light);
  padding: 20px 24px 24px;
}
.cta-section {
  padding: 80px 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(11, 24, 42, .94), rgba(19, 44, 80, .9));
}
.cta-box {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}
.cta-box h2 {
  color: #fff;
  font-size: 34px;
  font-weight: 800;
  margin-bottom: 18px;
  letter-spacing: 1px;
}
.cta-box p {
  color: rgba(255, 255, 255, .8);
  font-size: 16.5px;
  line-height: 1.85;
  margin-bottom: 36px;
}
.cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.site-footer {
  background: #081220;
  color: rgba(255, 255, 255, .7);
  padding: 64px 0 28px;
  font-size: 14px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1.2fr;
  gap: 50px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}
.footer-brand {
  font-size: 24px;
  font-weight: 800;
  color: #fff;
  letter-spacing: 1px;
  line-height: 1.3;
}
.footer-grid p {
  line-height: 1.8;
  color: rgba(255, 255, 255, .62);
  margin: 16px 0 0;
  max-width: 360px;
}
.footer-social {
  display: flex;
  gap: 14px;
  margin-top: 22px;
}
.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, .72);
  font-size: 16px;
  transition: all .25s ease;
}
.footer-social a:hover {
  background: var(--accent);
  color: #fff;
  transform: translateY(-3px);
}
.site-footer h4 {
  font-size: 16px;
  color: #fff;
  font-weight: 600;
  margin: 0 0 20px;
}
.site-footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.site-footer ul li a {
  color: rgba(255, 255, 255, .6);
  transition: color .25s ease;
}
.site-footer ul li a:hover {
  color: var(--accent);
}
.footer-contact-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(255, 255, 255, .62);
  line-height: 1.7;
}
.footer-contact-list i {
  color: var(--accent);
  width: 18px;
  flex-shrink: 0;
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 28px;
  color: rgba(255, 255, 255, .42);
  font-size: 13px;
}
@media (max-width: 991.98px) {
  .article-hero {
    padding: 80px 0 70px;
    margin-top: -70px;
  }
  .article-hero h1 {
    font-size: 32px;
  }
  .post-header h1 {
    font-size: 26px;
  }
  .post-card {
    padding: 34px 28px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
}
@media (max-width: 767.98px) {
  .site-header {
    padding-top: 14px;
  }
  .nav-dock {
    flex-wrap: wrap;
    padding: 12px 16px;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .nav-links {
    display: none;
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    background: #fff;
    border-radius: 16px;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 16px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
  }
  .nav-links.open {
    display: flex;
  }
  .nav-link {
    padding: 12px 12px !important;
    font-size: 15px !important;
    border-radius: 10px;
  }
  .nav-link.active::after {
    display: none;
  }
  .nav-link:hover {
    background: #f5f7fa !important;
  }
  .btn-dock {
    margin-left: auto;
  }
  .article-hero {
    padding: 70px 0 56px;
    margin-top: -66px;
  }
  .article-hero h1 {
    font-size: 27px;
  }
  .post-section {
    padding: 48px 0 40px;
  }
  .post-card {
    padding: 28px 22px;
  }
  .post-body {
    font-size: 15.5px;
  }
  .section-header h2 {
    font-size: 28px;
  }
  .related-section,
  .faq-section {
    padding: 60px 0;
  }
  .cta-section {
    padding: 60px 0;
  }
  .cta-box h2 {
    font-size: 27px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 6px;
  }
}
@media (max-width: 575.98px) {
  .post-card {
    padding: 22px 18px;
  }
  .article-hero h1 {
    font-size: 24px;
  }
  .stat-num {
    font-size: 34px;
  }
  .stat-card {
    padding: 28px 12px;
  }
  .cta-actions .btn {
    width: 100%;
    text-align: center;
  }
  .footer-social a {
    width: 36px;
    height: 36px;
  }
}