/* roulang page: index */
:root {
  --color-primary: #0f172a;
  --color-primary-light: #1e293b;
  --color-accent: #d4a853;
  --color-accent-hover: #c19747;
  --color-red: #b91c1c;
  --color-bg: #f8f7f4;
  --color-bg-alt: #f0ede8;
  --color-white: #ffffff;
  --color-text: #1a2332;
  --color-text-light: #5a6472;
  --color-border: #e5e1da;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 2px 10px rgba(0,0,0,.06);
  --shadow-md: 0 8px 24px rgba(0,0,0,.08);
  --shadow-lg: 0 16px 40px rgba(0,0,0,.12);
  --font-sans: "PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --transition: all .3s ease;
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}
button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}
input, textarea {
  font-family: inherit;
}
ul, ol {
  list-style: none;
}
.container {
  width: min(1200px, 92%);
  margin: 0 auto;
}
.section {
  padding: 96px 0;
}
.section--alt {
  background: var(--color-bg-alt);
}
.section--dark {
  background: var(--color-primary);
  color: var(--color-white);
}
.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 56px;
}
.section-tag {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: rgba(212,168,83,.12);
  border: 1px solid rgba(212,168,83,.3);
  padding: 6px 18px;
  border-radius: 100px;
  margin-bottom: 16px;
}
.section-header h2 {
  font-size: clamp(1.8rem, 3.2vw, 2.6rem);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -.02em;
  margin-bottom: 16px;
  color: var(--color-text);
}
.section--dark .section-header h2 {
  color: var(--color-white);
}
.section-header p {
  font-size: 1.05rem;
  color: var(--color-text-light);
}
.section--dark .section-header p {
  color: rgba(255,255,255,.7);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}
.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 24px;
}
.brand {
  font-size: 1.55rem;
  font-weight: 900;
  letter-spacing: -.02em;
  color: var(--color-primary);
  white-space: nowrap;
}
.brand span {
  color: var(--color-accent);
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 auto;
}
.nav-link {
  font-size: .95rem;
  font-weight: 500;
  color: var(--color-text);
  padding: 8px 16px;
  border-radius: 100px;
  transition: var(--transition);
}
.nav-link:hover {
  color: var(--color-primary);
  background: rgba(15,23,42,.05);
}
.nav-link.active {
  color: var(--color-white);
  background: var(--color-primary);
  font-weight: 600;
}
.nav-cta {
  white-space: nowrap;
}
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: var(--transition);
}
.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);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: .95rem;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: 100px;
  transition: var(--transition);
  border: 2px solid transparent;
}
.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
}
.btn-primary:hover {
  background: var(--color-primary-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.btn-accent {
  background: var(--color-accent);
  color: var(--color-primary);
}
.btn-accent:hover {
  background: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(212,168,83,.35);
}
.btn-ghost {
  border-color: rgba(255,255,255,.5);
  color: var(--color-white);
  background: transparent;
}
.btn-ghost:hover {
  border-color: var(--color-white);
  background: rgba(255,255,255,.08);
}
.btn-outline {
  border-color: var(--color-border);
  color: var(--color-primary);
  background: transparent;
}
.btn-outline:hover {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: var(--color-white);
}

/* Hero */
.hero {
  background: linear-gradient(135deg, rgba(10,14,25,.94), rgba(20,28,46,.85)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  min-height: 92vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}
.hero__inner {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 48px;
  align-items: center;
  padding: 60px 0;
}
.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .88rem;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: rgba(212,168,83,.1);
  border: 1px solid rgba(212,168,83,.3);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 24px;
}
.hero__eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
}
.hero h1 {
  font-size: clamp(2.2rem, 4.5vw, 3.4rem);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -.03em;
  color: var(--color-white);
  margin-bottom: 20px;
}
.hero h1 em {
  font-style: normal;
  color: var(--color-accent);
  position: relative;
}
.hero__content p {
  font-size: 1.1rem;
  color: rgba(255,255,255,.75);
  max-width: 540px;
  margin-bottom: 32px;
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 48px;
}
.hero__stats {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
}
.hero__stats div {
  display: flex;
  flex-direction: column;
}
.hero__stats strong {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-white);
  line-height: 1.2;
}
.hero__stats strong::after {
  content: "+";
  color: var(--color-accent);
  font-size: 1.2rem;
  margin-left: 2px;
}
.hero__stats span {
  font-size: .88rem;
  color: rgba(255,255,255,.55);
  margin-top: 4px;
}
.hero__visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}
.hero__visual img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 480px;
  border: 4px solid rgba(255,255,255,.08);
}
.hero__card {
  position: absolute;
  background: rgba(255,255,255,.95);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 12px;
  backdrop-filter: blur(8px);
}
.hero__card--top {
  top: 30px;
  right: -20px;
}
.hero__card--bottom {
  bottom: 40px;
  left: -20px;
}
.hero__card i {
  font-size: 1.4rem;
  color: var(--color-accent);
}
.hero__card span {
  font-size: .85rem;
  font-weight: 600;
  color: var(--color-text);
}
.hero__card small {
  font-size: .75rem;
  color: var(--color-text-light);
  display: block;
}

/* Intro */
.intro {
  background: var(--color-white);
}
.intro__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.intro__media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.intro__media img {
  width: 100%;
  height: 420px;
  object-fit: cover;
}
.intro__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(15,23,42,.25), transparent 60%);
}
.intro__medal {
  position: absolute;
  bottom: 20px;
  left: 20px;
  right: 20px;
  background: rgba(255,255,255,.92);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 14px;
  box-shadow: var(--shadow-md);
  z-index: 1;
}
.intro__medal i {
  font-size: 1.8rem;
  color: var(--color-accent);
}
.intro__medal strong {
  font-size: 1rem;
  display: block;
  color: var(--color-text);
}
.intro__medal span {
  font-size: .82rem;
  color: var(--color-text-light);
}
.intro__content h2 {
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -.02em;
  margin-bottom: 20px;
}
.intro__content h2 em {
  font-style: normal;
  color: var(--color-accent);
}
.intro__content p {
  color: var(--color-text-light);
  font-size: 1.05rem;
  margin-bottom: 16px;
}
.intro__list {
  margin-top: 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.intro__list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: .95rem;
  font-weight: 500;
}
.intro__list li i {
  color: var(--color-accent);
  font-size: 1rem;
}

/* Categories */
.categories {
  background: var(--color-bg-alt);
}
.cat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.cat-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid transparent;
}
.cat-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(212,168,83,.3);
}
.cat-card__media {
  position: relative;
  height: 220px;
  overflow: hidden;
}
.cat-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.cat-card:hover .cat-card__media img {
  transform: scale(1.05);
}
.cat-card__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(15,23,42,.5), transparent 70%);
}
.cat-card__tag {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 1;
  background: var(--color-accent);
  color: var(--color-primary);
  font-size: .78rem;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 100px;
  letter-spacing: .04em;
}
.cat-card__body {
  padding: 28px;
}
.cat-card__body h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--color-text);
}
.cat-card__body p {
  font-size: .92rem;
  color: var(--color-text-light);
  margin-bottom: 18px;
  line-height: 1.65;
}
.cat-card__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .9rem;
  font-weight: 600;
  color: var(--color-primary);
}
.cat-card__link:hover {
  color: var(--color-accent-hover);
  gap: 12px;
}
.cat-card__link i {
  font-size: .8rem;
}

/* News */
.news-section {
  background: var(--color-white);
}
.news-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.news-card {
  background: var(--color-bg);
  border-radius: var(--radius-md);
  padding: 28px;
  border-left: 4px solid var(--color-accent);
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}
.news-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
  background: var(--color-white);
}
.news-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}
.badge {
  display: inline-block;
  background: var(--color-primary);
  color: var(--color-white);
  font-size: .76rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 100px;
  letter-spacing: .03em;
}
.badge--accent {
  background: var(--color-accent);
  color: var(--color-primary);
}
.news-card time {
  font-size: .82rem;
  color: var(--color-text-light);
}
.news-card__title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.45;
}
.news-card__title a {
  color: var(--color-text);
}
.news-card__title a:hover {
  color: var(--color-accent-hover);
}
.news-card__desc {
  font-size: .92rem;
  color: var(--color-text-light);
  margin-bottom: 16px;
  line-height: 1.65;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .88rem;
  font-weight: 600;
  color: var(--color-primary);
}
.text-link:hover {
  color: var(--color-accent-hover);
  gap: 12px;
}
.text-link i {
  font-size: .75rem;
}
.news-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px;
  background: var(--color-bg);
  border-radius: var(--radius-md);
  color: var(--color-text-light);
  font-size: 1.05rem;
}

/* Process */
.process {
  background: var(--color-bg-alt);
}
.process__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  position: relative;
}
.process__grid::before {
  content: "";
  position: absolute;
  top: 36px;
  left: 8%;
  right: 8%;
  height: 2px;
  background: rgba(212,168,83,.25);
  z-index: 0;
}
.process-step {
  position: relative;
  z-index: 1;
  text-align: center;
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 32px 20px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.process-step:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}
.process-step__icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  color: var(--color-accent);
  font-size: 1.6rem;
  box-shadow: 0 4px 14px rgba(15,23,42,.25);
}
.process-step__num {
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--color-accent);
  margin-bottom: 6px;
}
.process-step h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-text);
}
.process-step p {
  font-size: .86rem;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* Stats */
.stats-band {
  background: linear-gradient(135deg, rgba(10,14,25,.9), rgba(20,28,46,.8)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  padding: 80px 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  text-align: center;
}
.stats-item {
  padding: 24px;
  border-radius: var(--radius-md);
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.08);
  backdrop-filter: blur(6px);
  transition: var(--transition);
}
.stats-item:hover {
  background: rgba(255,255,255,.12);
  transform: translateY(-4px);
}
.stats-item i {
  font-size: 2rem;
  color: var(--color-accent);
  margin-bottom: 12px;
}
.stats-item strong {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--color-white);
  display: block;
  line-height: 1.2;
  margin-bottom: 6px;
}
.stats-item strong::after {
  content: "+";
  color: var(--color-accent);
  font-size: 1.3rem;
  vertical-align: super;
  margin-left: 2px;
}
.stats-item span {
  font-size: .88rem;
  color: rgba(255,255,255,.6);
}

/* Features */
.features {
  background: var(--color-white);
}
.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.feature-card {
  border-radius: var(--radius-md);
  padding: 32px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-red));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .4s ease;
}
.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(212,168,83,.3);
}
.feature-card:hover::before {
  transform: scaleX(1);
}
.feature-card__icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 20px;
}
.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--color-text);
}
.feature-card p {
  font-size: .9rem;
  color: var(--color-text-light);
  line-height: 1.65;
}

/* FAQ */
.faq {
  background: var(--color-bg-alt);
}
.faq__list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.faq-item {
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover {
  box-shadow: var(--shadow-md);
}
.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 28px;
  cursor: pointer;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-text);
  list-style: none;
}
.faq-item summary::-webkit-details-marker {
  display: none;
}
.faq-item summary::after {
  content: "\f078";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  font-size: .9rem;
  color: var(--color-accent);
  transition: transform .3s ease;
  flex-shrink: 0;
}
.faq-item[open] summary::after {
  transform: rotate(180deg);
}
.faq-item summary:hover {
  color: var(--color-primary);
}
.faq-item__body {
  padding: 0 28px 24px;
  color: var(--color-text-light);
  font-size: .95rem;
  line-height: 1.7;
  border-top: 1px solid var(--color-border);
  padding-top: 16px;
}

/* CTA */
.cta-section {
  background: linear-gradient(135deg, rgba(10,14,25,.92), rgba(20,28,46,.85)), url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  padding: 100px 0;
  text-align: center;
}
.cta-section h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: 16px;
  letter-spacing: -.02em;
}
.cta-section p {
  font-size: 1.1rem;
  color: rgba(255,255,255,.75);
  max-width: 560px;
  margin: 0 auto 36px;
}
.cta-section .btn-group {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.cta-section small {
  display: block;
  margin-top: 24px;
  color: rgba(255,255,255,.4);
  font-size: .82rem;
}

/* Footer */
.site-footer {
  background: #0b1020;
  color: rgba(255,255,255,.6);
  padding: 80px 0 0;
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer__brand {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--color-white);
  display: block;
  margin-bottom: 16px;
}
.footer__brand span {
  color: var(--color-accent);
}
.footer__about {
  font-size: .92rem;
  line-height: 1.7;
  color: rgba(255,255,255,.5);
  max-width: 340px;
}
.footer__col h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 20px;
  letter-spacing: .04em;
}
.footer__col ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer__col a {
  font-size: .92rem;
  color: rgba(255,255,255,.55);
}
.footer__col a:hover {
  color: var(--color-accent);
}
.footer__bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 24px 0;
  text-align: center;
  font-size: .82rem;
  color: rgba(255,255,255,.35);
}
.footer__bottom a {
  color: rgba(255,255,255,.5);
}
.footer__bottom a:hover {
  color: var(--color-accent);
}

/* Responsive */
@media (max-width: 1024px) {
  .section {
    padding: 72px 0;
  }
  .hero__inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .hero__visual {
    display: none;
  }
  .intro__grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .process__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .process__grid::before {
    display: none;
  }
  .features__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .cat-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer__grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }
  .main-nav {
    position: fixed;
    top: 76px;
    left: 0;
    right: 0;
    background: var(--color-white);
    flex-direction: column;
    align-items: stretch;
    padding: 16px 24px 24px;
    gap: 8px;
    box-shadow: var(--shadow-md);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
    border-bottom: 1px solid var(--color-border);
    z-index: 99;
  }
  .main-nav.nav-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-link {
    padding: 14px 16px;
    border-radius: var(--radius-sm);
    font-size: 1rem;
  }
  .nav-cta {
    display: none;
  }
  .news-grid {
    grid-template-columns: 1fr;
  }
  .cat-grid {
    grid-template-columns: 1fr;
  }
  .features__grid {
    grid-template-columns: 1fr;
  }
  .stats-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .intro__list {
    grid-template-columns: 1fr;
  }
  .hero__stats {
    gap: 24px;
  }
  .footer__grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
}
@media (max-width: 520px) {
  .section {
    padding: 56px 0;
  }
  .hero {
    min-height: auto;
    padding: 60px 0;
  }
  .hero h1 {
    font-size: 2rem;
  }
  .hero__actions .btn {
    width: 100%;
  }
  .hero__stats {
    flex-direction: column;
    gap: 16px;
  }
  .process__grid {
    grid-template-columns: 1fr;
  }
  .section-header h2 {
    font-size: 1.5rem;
  }
  .faq-item summary {
    padding: 18px 20px;
    font-size: .95rem;
  }
  .faq-item__body {
    padding: 0 20px 20px;
    font-size: .9rem;
  }
  .news-card {
    padding: 22px;
  }
  .feature-card {
    padding: 24px;
  }
}

/* Accessibility */
a:focus-visible,
button:focus-visible,
.summary:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}
::selection {
  background: var(--color-accent);
  color: var(--color-primary);
}

/* roulang page: article */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --primary:#0d2b45;--primary-light:#17436b;--primary-dark:#081e31;
  --accent:#d9963a;--accent-hover:#c07a28;
  --bg-light:#f5f7fb;--bg-white:#fff;--bg-dark:#0a2033;
  --text-main:#1f2a35;--text-weak:#728094;--border:#e3e9f0;
  --radius-lg:16px;--radius:12px;--radius-sm:8px;
  --shadow:0 6px 20px rgba(13,43,69,.06);--shadow-lg:0 18px 48px rgba(13,43,69,.1);
  --container:1200px;--tr:.25s ease;
}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Segoe UI",system-ui,-apple-system,sans-serif;background:var(--bg-white);color:var(--text-main);line-height:1.7;font-size:16px}
img{display:block;max-width:100%;height:auto}
a{text-decoration:none;color:inherit;transition:color var(--tr)}
button{font-family:inherit;cursor:pointer;border:none;background:none}
ul,ol{list-style:none}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
.container--narrow{max-width:860px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 28px;border-radius:999px;font-size:15px;font-weight:600;line-height:1;white-space:nowrap;border:2px solid transparent;transition:all var(--tr);text-decoration:none}
.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent)}
.btn-primary:hover{background:var(--accent-hover);border-color:var(--accent-hover);transform:translateY(-2px);box-shadow:0 10px 28px rgba(217,150,58,.3)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-outline-light:hover{background:rgba(255,255,255,.12);border-color:#fff;transform:translateY(-2px)}

/* ===== Header ===== */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.95);backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}
.nav-wrapper{display:flex;align-items:center;justify-content:space-between;height:76px;gap:20px}
.brand{font-size:24px;font-weight:800;color:var(--primary);letter-spacing:.5px;display:inline-flex;align-items:center}
.brand span,.footer__brand span{color:var(--accent)}
.main-nav{display:flex;gap:28px;align-items:center}
.nav-link{font-size:15px;font-weight:500;color:var(--text-main);padding:10px 2px;border-bottom:2px solid transparent;transition:border-color var(--tr),color var(--tr)}
.nav-link:hover{color:var(--primary)}
.nav-link.active{color:var(--primary);border-bottom-color:var(--accent);font-weight:600}
.nav-cta{padding:10px 22px;font-size:14px}
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:42px;height:42px;background:transparent;border:1px solid var(--border);border-radius:var(--radius-sm);padding:10px}
.nav-toggle span{width:100%;height:2px;background:var(--primary);border-radius:2px;transition:transform .3s,opacity .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)}

/* ===== Article Hero ===== */
.article-hero{position:relative;padding:104px 0 90px;background:linear-gradient(125deg,rgba(8,30,49,.95),rgba(13,43,69,.78)),url('/assets/images/backpic/back-1.png') center/cover no-repeat;color:#fff;overflow:hidden}
.article-hero::after{content:'';position:absolute;right:-120px;bottom:-120px;width:360px;height:360px;border-radius:50%;background:radial-gradient(circle,rgba(217,150,58,.22),transparent 70%);pointer-events:none}
.article-hero .container{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:14px;color:rgba(255,255,255,.68);margin-bottom:28px}
.breadcrumb a{color:rgba(255,255,255,.85)}
.breadcrumb a:hover{color:#fff}
.breadcrumb__sep{opacity:.5}
.article-hero__cat{display:inline-block;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.25);color:#fff;font-size:13px;padding:6px 18px;border-radius:999px;backdrop-filter:blur(4px);margin-bottom:18px}
.article-hero h1{font-size:clamp(30px,5vw,48px);font-weight:800;line-height:1.28;max-width:860px;letter-spacing:.5px;text-shadow:0 2px 18px rgba(0,0,0,.18);margin-bottom:22px}
.article-hero__meta{display:flex;flex-wrap:wrap;gap:20px;font-size:14px;color:rgba(255,255,255,.72)}
.article-hero__meta i{margin-right:6px;color:var(--accent)}

/* ===== Article Body ===== */
.article-body{padding:56px 0 72px;background:var(--bg-white)}
.article__lead{background:var(--bg-light);border-left:4px solid var(--accent);border-radius:0 var(--radius) var(--radius) 0;padding:20px 26px;margin-bottom:36px;font-size:16px;color:var(--text-main);line-height:1.85;position:relative}
.article__content{font-size:16.5px;line-height:1.95;color:var(--text-main)}
.article__content h2{font-size:28px;font-weight:700;color:var(--primary);margin:48px 0 18px;padding-bottom:12px;border-bottom:1px solid var(--border)}
.article__content h3{font-size:22px;font-weight:600;color:var(--primary);margin:36px 0 14px}
.article__content p{margin-bottom:1.5em}
.article__content img{border-radius:var(--radius);box-shadow:var(--shadow);margin:28px auto}
.article__content a{color:var(--primary-light);text-decoration:underline;text-underline-offset:3px}
.article__content a:hover{color:var(--accent-hover)}
.article__content ul,.article__content ol{margin:0 0 1.5em 1.4em}
.article__content ul{list-style:disc}
.article__content ol{list-style:decimal}
.article__content li{margin-bottom:.6em}
.article__content blockquote{border-left:4px solid var(--accent);background:var(--bg-light);padding:18px 24px;border-radius:0 var(--radius-sm) var(--radius-sm) 0;margin:28px 0;color:var(--text-weak);font-style:italic}
.article__content pre{background:#f1f5f9;border:1px solid var(--border);border-radius:var(--radius-sm);padding:18px 22px;overflow-x:auto;font-size:.92em;line-height:1.7;margin:24px 0}
.article__content code{background:#f1f5f9;border-radius:6px;padding:2px 8px;font-size:.9em}
.article__content table{width:100%;border-collapse:collapse;margin:28px 0}
.article__content th,.article__content td{border:1px solid var(--border);padding:12px 16px;text-align:left}
.article__content th{background:var(--bg-light);font-weight:600}

.article__foot{margin-top:48px;padding-top:28px;border-top:1px solid var(--border);display:flex;flex-wrap:wrap;align-items:center;gap:12px}
.article__tags-label{font-weight:600;color:var(--text-main);font-size:14px}
.tag{display:inline-block;background:var(--bg-light);border:1px solid var(--border);border-radius:999px;padding:5px 14px;font-size:13px;color:var(--text-weak);transition:all var(--tr)}
.tag:hover{background:var(--accent);color:#fff;border-color:var(--accent)}

/* ===== Related ===== */
.related-section{padding:80px 0;background:var(--bg-light)}
.section-head{text-align:center;margin-bottom:48px}
.section-head h2{font-size:32px;font-weight:800;color:var(--primary);letter-spacing:.5px}
.section-head p{color:var(--text-weak);font-size:16px;margin-top:8px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.related-card{background:var(--bg-white);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);transition:transform var(--tr),box-shadow var(--tr);display:flex;flex-direction:column}
.related-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.related-card__img{aspect-ratio:16/9;overflow:hidden}
.related-card__img img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.related-card:hover .related-card__img img{transform:scale(1.06)}
.related-card__cat{display:inline-block;align-self:flex-start;background:var(--bg-light);border:1px solid var(--border);color:var(--text-weak);font-size:12px;padding:4px 12px;border-radius:999px;margin:20px 24px 0;transition:all var(--tr)}
.related-card:hover .related-card__cat{background:var(--accent);color:#fff;border-color:var(--accent)}
.related-card h3{font-size:18px;font-weight:600;color:var(--text-main);line-height:1.5;margin:12px 24px 0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-card p{font-size:14px;color:var(--text-weak);margin:10px 24px 22px;line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ===== CTA ===== */
.cta-section{padding:88px 0;background:linear-gradient(135deg,var(--primary-dark),var(--primary));color:#fff;text-align:center}
.cta-section h2{font-size:34px;font-weight:800;letter-spacing:.5px;margin-bottom:14px}
.cta-section p{font-size:16px;color:rgba(255,255,255,.78);max-width:560px;margin:0 auto 32px}
.cta-section__actions{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}

/* ===== Footer ===== */
.site-footer{background:#081e31;color:rgba(255,255,255,.78)}
.footer__grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:60px;padding:64px 0 44px}
.footer__brand{font-size:24px;font-weight:800;color:#fff;letter-spacing:.5px;display:inline-block;margin-bottom:18px}
.footer__about{font-size:14px;line-height:1.85;max-width:340px;margin-bottom:0;color:rgba(255,255,255,.62)}
.footer__col h4{color:#fff;font-size:16px;font-weight:600;margin-bottom:20px;letter-spacing:.3px}
.footer__col ul li{margin-bottom:12px}
.footer__col ul a{font-size:14px;color:rgba(255,255,255,.62);transition:color var(--tr)}
.footer__col ul a:hover{color:var(--accent)}
.footer__col ul a i{width:20px;color:var(--accent);margin-right:4px}
.footer__bottom{border-top:1px solid rgba(255,255,255,.12);padding:22px 0;text-align:center;font-size:13px;color:rgba(255,255,255,.48)}

/* ===== Not Found ===== */
.not-found-section{padding:120px 0;background:var(--bg-light);min-height:70vh;display:flex;align-items:center}
.not-found{text-align:center;max-width:560px;margin:0 auto}
.not-found h1{font-size:42px;color:var(--primary);font-weight:800;margin-bottom:12px}
.not-found p{color:var(--text-weak);font-size:16px;margin-bottom:32px}
.not-found .btn{padding:14px 38px;font-size:16px}

/* ===== Responsive ===== */
@media (max-width:1024px){
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer__grid{grid-template-columns:1fr 1fr;gap:40px}
}
@media (max-width:768px){
  .nav-toggle{display:flex}
  .main-nav{position:fixed;top:76px;right:0;bottom:0;width:76vw;max-width:340px;background:var(--bg-white);box-shadow:-8px 0 40px rgba(0,0,0,.12);flex-direction:column;align-items:flex-start;padding:32px 28px;gap:6px;transform:translateX(105%);transition:transform .35s ease;overflow-y:auto}
  .main-nav.open{transform:translateX(0)}
  .nav-link{font-size:17px;padding:12px 0;width:100%;border-bottom:1px solid var(--border);border-left:none}
  .nav-link.active{border-bottom-color:var(--accent)}
  .nav-cta{margin-top:20px;width:100%;justify-content:center}
  .nav-wrapper{position:relative}
  .article-hero{padding:76px 0 64px}
  .article-hero h1{font-size:34px}
  .article-body{padding:40px 0 56px}
  .article__content{font-size:16px;line-height:1.9}
  .article__content h2{font-size:24px}
  .cta-section{padding:64px 0}
  .cta-section h2{font-size:28px}
  .footer__grid{grid-template-columns:1fr;gap:36px;padding:48px 0 36px}
  .section-head h2{font-size:28px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .related-grid{grid-template-columns:1fr}
  .article-hero h1{font-size:28px}
  .article-hero__meta{gap:12px;font-size:13px}
  .breadcrumb{font-size:13px;flex-wrap:wrap}
  .article__lead{padding:16px 18px;font-size:15px}
  .cta-section__actions{flex-direction:column;align-items:center}
  .cta-section__actions .btn{width:100%;max-width:280px}
  .not-found h1{font-size:34px}
}

/* roulang page: category1 */
:root {
      --primary: #14356f;
      --primary-deep: #0c1e42;
      --primary-bright: #1c5bd7;
      --accent: #f2a63b;
      --accent-soft: #fff4e6;
      --white: #ffffff;
      --bg-light: #f5f7fb;
      --text-main: #16233b;
      --text-sub: #5a6a85;
      --border: #e6ebf3;
      --radius: 16px;
      --radius-sm: 10px;
      --shadow-sm: 0 4px 14px rgba(14, 34, 73, .06);
      --shadow-md: 0 10px 34px rgba(14, 34, 73, .10);
      --shadow-lg: 0 22px 54px rgba(14, 34, 73, .16);
      --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);
      color: var(--text-main);
      line-height: 1.7;
      background: var(--white);
      -webkit-font-smoothing: antialiased;
    }

    ul, ol {
      list-style: none;
    }

    a {
      text-decoration: none;
      color: inherit;
      transition: color .25s ease;
    }

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

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

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

    .section {
      padding: 90px 0;
    }

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

    .section-head {
      text-align: center;
      max-width: 680px;
      margin: 0 auto 52px;
    }

    .section-head h2 {
      font-size: 2rem;
      color: var(--primary-deep);
      margin-bottom: 12px;
      letter-spacing: .5px;
    }

    .section-head p {
      color: var(--text-sub);
      font-size: .98rem;
    }

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

    .section-head.light p {
      color: rgba(255, 255, 255, .7);
    }

    .section-head.light .sec-tag {
      color: #ffd9a1;
      background: rgba(255, 255, 255, .1);
      border-color: rgba(255, 255, 255, .22);
    }

    .sec-tag {
      display: inline-block;
      font-size: .74rem;
      letter-spacing: 2px;
      font-weight: 700;
      color: var(--primary-bright);
      background: rgba(28, 91, 215, .08);
      border: 1px solid rgba(28, 91, 215, .14);
      padding: 5px 16px;
      border-radius: 30px;
      margin-bottom: 16px;
      text-transform: uppercase;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      border-radius: 50px;
      padding: 12px 28px;
      font-weight: 600;
      border: 0;
      cursor: pointer;
      transition: all .3s ease;
      font-size: .95rem;
      line-height: 1.4;
    }

    .btn-primary {
      background: var(--primary);
      color: #fff;
      box-shadow: var(--shadow-sm);
    }

    .btn-primary:hover {
      background: var(--primary-deep);
      transform: translateY(-2px);
      box-shadow: var(--shadow-md);
    }

    .btn-light {
      background: #fff;
      color: var(--primary);
    }

    .btn-light:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-md);
    }

    .btn-outline-light {
      background: transparent;
      border: 1.5px solid rgba(255, 255, 255, .7);
      color: #fff;
    }

    .btn-outline-light:hover {
      background: rgba(255, 255, 255, .12);
    }

    .btn-lg {
      padding: 14px 36px;
      font-size: 1rem;
    }

    /* ========== Header ========== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, .92);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border);
    }

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

    .brand {
      font-size: 1.5rem;
      font-weight: 800;
      color: var(--primary);
      letter-spacing: .5px;
      white-space: nowrap;
    }

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

    .main-nav {
      display: flex;
      align-items: center;
      gap: 30px;
    }

    .nav-link {
      font-weight: 500;
      color: var(--text-sub);
      position: relative;
      padding: 6px 2px;
      white-space: nowrap;
      font-size: .95rem;
    }

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

    .nav-link.active {
      color: var(--primary);
    }

    .nav-link.active::after {
      content: '';
      position: absolute;
      left: 0;
      right: 0;
      bottom: -4px;
      height: 3px;
      border-radius: 3px;
      background: var(--accent);
    }

    .nav-cta {
      flex-shrink: 0;
      padding: 10px 24px;
      font-size: .9rem;
    }

    .nav-toggle {
      display: none;
      background: none;
      border: 0;
      cursor: pointer;
      flex-direction: column;
      gap: 6px;
      padding: 8px;
      border-radius: 8px;
    }

    .nav-toggle span {
      width: 26px;
      height: 2.5px;
      background: var(--primary);
      border-radius: 4px;
      transition: all .3s ease;
    }

    /* ========== Page Hero ========== */
    .page-hero {
      position: relative;
      padding: 110px 0;
      background: linear-gradient(120deg, rgba(7, 17, 42, .92), rgba(20, 53, 111, .85)), url('/assets/images/backpic/back-1.png') center / cover no-repeat;
      color: #fff;
      overflow: hidden;
    }

    .page-hero::before {
      content: '';
      position: absolute;
      right: -80px;
      top: -80px;
      width: 320px;
      height: 320px;
      border-radius: 50%;
      background: rgba(242, 166, 59, .1);
    }

    .page-hero::after {
      content: '';
      position: absolute;
      left: -120px;
      bottom: -120px;
      width: 260px;
      height: 260px;
      border-radius: 50%;
      background: rgba(28, 91, 215, .18);
    }

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

    .breadcrumb {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: .85rem;
      color: rgba(255, 255, 255, .65);
      margin-bottom: 18px;
    }

    .breadcrumb a {
      color: rgba(255, 255, 255, .85);
    }

    .breadcrumb a:hover {
      color: #fff;
    }

    .breadcrumb .sep {
      opacity: .5;
    }

    .page-hero h1 {
      font-size: 2.8rem;
      font-weight: 800;
      margin-bottom: 14px;
      letter-spacing: 2px;
      line-height: 1.3;
    }

    .page-hero p {
      font-size: 1.1rem;
      max-width: 620px;
      color: rgba(255, 255, 255, .82);
      margin-bottom: 32px;
    }

    /* ========== Intro ========== */
    .intro__grid {
      display: grid;
      grid-template-columns: 1.05fr 1fr;
      align-items: center;
      gap: 60px;
    }

    .intro__content h2 {
      font-size: 1.9rem;
      line-height: 1.4;
      color: var(--primary-deep);
      margin-bottom: 18px;
    }

    .intro__content p {
      color: var(--text-sub);
      font-size: 1rem;
      margin-bottom: 26px;
    }

    .intro__points li {
      position: relative;
      padding: 11px 0 11px 36px;
      border-bottom: 1px dashed var(--border);
      color: var(--text-main);
      font-weight: 500;
      font-size: .95rem;
    }

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

    .intro__points li::before {
      content: '\f00c';
      font-family: 'Font Awesome 6 Free';
      font-weight: 900;
      position: absolute;
      left: 0;
      top: 12px;
      width: 22px;
      height: 22px;
      border-radius: 50%;
      background: rgba(28, 91, 215, .1);
      color: var(--primary-bright);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: .66rem;
    }

    .intro__media {
      position: relative;
    }

    .intro__media img {
      border-radius: var(--radius);
      box-shadow: var(--shadow-lg);
      width: 100%;
      object-fit: cover;
    }

    .intro__media::before {
      content: '';
      position: absolute;
      width: 90px;
      height: 90px;
      border: 6px solid var(--accent);
      border-radius: 18px;
      top: -20px;
      right: -20px;
      z-index: -1;
    }

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

    .cap-card {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 34px 28px;
      transition: all .35s ease;
      box-shadow: var(--shadow-sm);
    }

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

    .cap-card__icon {
      width: 56px;
      height: 56px;
      border-radius: 14px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.35rem;
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--primary-bright));
      margin-bottom: 20px;
      box-shadow: 0 6px 16px rgba(28, 91, 215, .24);
    }

    .cap-card h3 {
      font-size: 1.14rem;
      margin-bottom: 10px;
      color: var(--primary-deep);
    }

    .cap-card p {
      color: var(--text-sub);
      font-size: .92rem;
      line-height: 1.75;
    }

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

    .sol-card {
      background: var(--bg-light);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 32px 24px;
      text-align: center;
      transition: all .3s ease;
    }

    .sol-card:hover {
      border-color: var(--primary-bright);
      background: #fff;
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
    }

    .sol-card i {
      font-size: 2rem;
      color: var(--primary-bright);
      margin-bottom: 16px;
      display: inline-block;
    }

    .sol-card h3 {
      font-size: 1.05rem;
      margin-bottom: 8px;
      color: var(--primary-deep);
    }

    .sol-card p {
      font-size: .9rem;
      color: var(--text-sub);
      line-height: 1.7;
    }

    /* ========== Process ========== */
    .process {
      background: linear-gradient(135deg, #0c1e42 0%, #14356f 100%);
      color: #fff;
    }

    .process__grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 26px;
    }

    .process__step {
      text-align: center;
      position: relative;
      padding: 42px 16px 10px;
      border-top: 2px dashed rgba(255, 255, 255, .22);
    }

    .process__num {
      position: absolute;
      top: -22px;
      left: 50%;
      transform: translateX(-50%);
      font-size: .8rem;
      font-weight: 800;
      color: var(--accent);
      border: 2px solid var(--accent);
      border-radius: 50%;
      width: 42px;
      height: 42px;
      line-height: 38px;
      background: #14356f;
      display: inline-block;
    }

    .process__step h3 {
      font-size: 1.08rem;
      margin: 8px 0 10px;
      color: #fff;
    }

    .process__step p {
      color: rgba(255, 255, 255, .72);
      font-size: .88rem;
      line-height: 1.7;
    }

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

    .case-card {
      background: #fff;
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      border: 1px solid var(--border);
      transition: all .35s ease;
      display: flex;
      flex-direction: column;
    }

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

    .case-card__cover {
      position: relative;
      height: 220px;
      overflow: hidden;
    }

    .case-card__cover img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .5s ease;
    }

    .case-card:hover .case-card__cover img {
      transform: scale(1.05);
    }

    .case-card__tag {
      position: absolute;
      top: 14px;
      left: 14px;
      background: rgba(12, 30, 66, .85);
      color: #fff;
      font-size: .75rem;
      padding: 4px 14px;
      border-radius: 30px;
      backdrop-filter: blur(4px);
      letter-spacing: .5px;
    }

    .case-card__body {
      padding: 26px;
      display: flex;
      flex-direction: column;
      flex: 1;
    }

    .case-card__body h3 {
      font-size: 1.15rem;
      margin-bottom: 8px;
      color: var(--primary-deep);
    }

    .case-card__body p {
      color: var(--text-sub);
      font-size: .92rem;
      margin-bottom: 16px;
      flex: 1;
    }

    .case-card__meta {
      display: flex;
      gap: 16px;
      font-size: .8rem;
      color: var(--text-sub);
      flex-wrap: wrap;
    }

    .case-card__meta i {
      color: var(--accent);
      margin-right: 4px;
    }

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

    .faq-item {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 14px;
      margin-bottom: 14px;
      overflow: hidden;
      transition: box-shadow .3s ease, border-color .3s ease;
    }

    .faq-item.active {
      box-shadow: var(--shadow-sm);
      border-color: rgba(28, 91, 215, .3);
    }

    .faq-q {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 20px 24px;
      cursor: pointer;
      font-weight: 600;
      background: none;
      border: 0;
      text-align: left;
      font-size: 1rem;
      color: var(--text-main);
      width: 100%;
      transition: color .3s ease;
    }

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

    .faq-q i {
      color: var(--primary-bright);
      transition: transform .3s ease;
      flex-shrink: 0;
    }

    .faq-item.active .faq-q i {
      transform: rotate(180deg);
    }

    .faq-a {
      max-height: 0;
      overflow: hidden;
      transition: max-height .4s ease, padding .4s ease;
      padding: 0 24px;
      color: var(--text-sub);
      font-size: .95rem;
      line-height: 1.8;
    }

    .faq-item.active .faq-a {
      max-height: 320px;
      padding: 0 24px 22px;
    }

    /* ========== CTA ========== */
    .cta {
      padding: 80px 0;
      background: linear-gradient(135deg, var(--primary-deep), var(--primary-bright));
      position: relative;
      overflow: hidden;
    }

    .cta::before {
      content: '';
      position: absolute;
      right: -60px;
      bottom: -60px;
      width: 240px;
      height: 240px;
      border-radius: 50%;
      background: rgba(242, 166, 59, .14);
    }

    .cta__box {
      text-align: center;
      color: #fff;
      max-width: 680px;
      margin: 0 auto;
      position: relative;
      z-index: 2;
    }

    .cta__box h2 {
      font-size: 2rem;
      margin-bottom: 14px;
      letter-spacing: 1px;
    }

    .cta__box p {
      color: rgba(255, 255, 255, .82);
      margin-bottom: 30px;
      font-size: 1rem;
    }

    .cta__actions {
      display: flex;
      gap: 18px;
      justify-content: center;
      flex-wrap: wrap;
    }

    /* ========== Footer ========== */
    .site-footer {
      background: var(--primary-deep);
      color: rgba(255, 255, 255, .72);
      padding: 72px 0 0;
    }

    .footer__grid {
      display: grid;
      grid-template-columns: 1.6fr 1fr 1fr;
      gap: 50px;
      padding-bottom: 46px;
      border-bottom: 1px solid rgba(255, 255, 255, .1);
    }

    .footer__brand {
      font-size: 1.5rem;
      font-weight: 800;
      color: #fff;
      letter-spacing: .5px;
    }

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

    .footer__about {
      font-size: .9rem;
      margin-top: 16px;
      line-height: 1.9;
      max-width: 380px;
    }

    .footer__col h4 {
      color: #fff;
      font-size: 1rem;
      margin-bottom: 18px;
      position: relative;
      padding-bottom: 10px;
    }

    .footer__col h4::before {
      content: '';
      position: absolute;
      left: 0;
      bottom: 0;
      width: 28px;
      height: 3px;
      border-radius: 3px;
      background: var(--accent);
    }

    .footer__col ul li {
      margin-bottom: 12px;
    }

    .footer__col a {
      color: rgba(255, 255, 255, .65);
      font-size: .9rem;
      transition: all .3s ease;
    }

    .footer__col a:hover {
      color: #fff;
      padding-left: 4px;
    }

    .footer__col i {
      margin-right: 8px;
      color: var(--accent);
      width: 18px;
      text-align: center;
    }

    .footer__bottom {
      padding: 22px 0;
      text-align: center;
      font-size: .84rem;
      color: rgba(255, 255, 255, .5);
    }

    /* ========== Responsive ========== */
    @media (max-width: 1024px) {
      .section {
        padding: 70px 0;
      }

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

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

      .process__grid {
        grid-template-columns: repeat(3, 1fr);
        row-gap: 36px;
      }

      .process__step:nth-child(n+4) {
        margin-top: 16px;
      }

      .footer__grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
      }
    }

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

      .page-hero {
        padding: 80px 0;
      }

      .page-hero h1 {
        font-size: 2.1rem;
      }

      .page-hero p {
        font-size: 1rem;
      }

      .intro__grid {
        grid-template-columns: 1fr;
        gap: 42px;
      }

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

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

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

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

      .process__step {
        border-top: none;
        border-left: 2px dashed rgba(255, 255, 255, .22);
        padding-left: 36px;
        text-align: left;
        padding-top: 4px;
        padding-bottom: 4px;
        margin-bottom: 28px;
      }

      .process__num {
        top: -12px;
        left: -21px;
        transform: none;
        width: 36px;
        height: 36px;
        line-height: 32px;
        font-size: .74rem;
      }

      .cta {
        padding: 60px 0;
      }

      .cta__box h2 {
        font-size: 1.6rem;
      }
    }

    @media (max-width: 640px) {
      .nav-toggle {
        display: flex;
      }

      .nav-cta {
        display: none;
      }

      .main-nav {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        align-items: flex-start;
        padding: 26px 6%;
        gap: 18px;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-md);
        transform: translateY(-115%);
        transition: transform .4s ease;
      }

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

      .nav-link.active::after {
        left: 0;
        right: auto;
        width: 28px;
      }

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

      .section-head h2 {
        font-size: 1.55rem;
      }

      .process__step p {
        font-size: .9rem;
      }
    }

    @media (max-width: 520px) {
      .nav-wrapper {
        height: 64px;
      }

      .main-nav {
        top: 64px;
      }

      .brand {
        font-size: 1.3rem;
      }

      .page-hero {
        padding: 64px 0;
      }

      .page-hero h1 {
        font-size: 1.8rem;
      }

      .page-hero p {
        font-size: .95rem;
      }

      .btn {
        padding: 11px 22px;
        font-size: .9rem;
      }

      .btn-lg {
        padding: 13px 28px;
      }

      .cta__actions {
        flex-direction: column;
        align-items: center;
      }

      .footer__grid {
        gap: 30px;
      }
    }

/* roulang page: category3 */
:root{
  --primary:#0f2b46;
  --primary-dark:#091d30;
  --primary-light:#1d4568;
  --accent:#ff6b35;
  --accent-hover:#e85a28;
  --bg-light:#f5f8fb;
  --bg-white:#ffffff;
  --bg-dark:#0f2b46;
  --text-dark:#17283a;
  --text-body:#4a5a6a;
  --text-muted:#7a8a99;
  --border:#e3eaef;
  --border-light:#eef2f6;
  --radius:16px;
  --radius-sm:10px;
  --shadow-sm:0 2px 8px rgba(15,43,70,0.06);
  --shadow-md:0 8px 24px rgba(15,43,70,0.08);
  --shadow-lg:0 16px 40px rgba(15,43,70,0.12);
  --space-sm:16px;
  --space-md:32px;
  --space-lg:64px;
  --space-xl:96px;
  --container:1200px;
  --transition:all 0.25s ease;
  --font-main:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-main);
  color:var(--text-body);
  background:var(--bg-white);
  line-height:1.7;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{text-decoration:none;color:inherit;transition:var(--transition)}
ul,ol{list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}
.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(255,255,255,0.92);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--border-light);
  transition:var(--transition);
}
.nav-wrapper{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:72px;
  gap:32px;
}
.brand{
  font-size:1.5rem;
  font-weight:700;
  color:var(--primary);
  letter-spacing:-0.02em;
  display:flex;
  align-items:center;
  gap:2px;
  flex-shrink:0;
}
.brand span{
  color:var(--accent);
  font-weight:700;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:8px;
  flex:1;
  justify-content:center;
}
.nav-link{
  display:inline-flex;
  align-items:center;
  padding:8px 18px;
  border-radius:100px;
  font-size:0.95rem;
  font-weight:500;
  color:var(--text-body);
  white-space:nowrap;
  transition:var(--transition);
  border:1px solid transparent;
}
.nav-link:hover{
  color:var(--primary);
  background:var(--bg-light);
}
.nav-link.active{
  color:var(--primary);
  background:rgba(15,43,70,0.08);
  font-weight:600;
  border-color:rgba(15,43,70,0.06);
}
.nav-cta{
  flex-shrink:0;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:10px 24px;
  border-radius:100px;
  font-weight:600;
  font-size:0.95rem;
  cursor:pointer;
  transition:var(--transition);
  border:none;
  line-height:1.4;
}
.btn-primary{
  background:var(--accent);
  color:#fff;
  box-shadow:0 4px 14px rgba(255,107,53,0.3);
}
.btn-primary:hover{
  background:var(--accent-hover);
  transform:translateY(-2px);
  box-shadow:0 6px 20px rgba(255,107,53,0.35);
}
.btn-outline-light{
  background:transparent;
  border:2px solid rgba(255,255,255,0.7);
  color:#fff;
}
.btn-outline-light:hover{
  background:rgba(255,255,255,0.15);
  border-color:#fff;
}
.btn-lg{
  padding:14px 36px;
  font-size:1.05rem;
}
.nav-toggle{
  display:none;
  flex-direction:column;
  gap:6px;
  background:none;
  border:none;
  cursor:pointer;
  padding:8px;
  border-radius:8px;
}
.nav-toggle span{
  display:block;
  width:24px;
  height:2px;
  background:var(--primary);
  border-radius:2px;
  transition:var(--transition);
}
/* ================= Hero / Page Banner ================= */
.page-hero{
  position:relative;
  padding:100px 0 120px;
  background-image:linear-gradient(135deg,rgba(15,43,70,0.88),rgba(9,29,48,0.82)),url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  color:#fff;
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;
  bottom:-60px;
  right:-60px;
  width:280px;
  height:280px;
  background:radial-gradient(circle,rgba(255,107,53,0.35),transparent 65%);
  border-radius:50%;
  pointer-events:none;
}
.page-hero .container{
  position:relative;
  z-index:2;
  text-align:center;
  max-width:820px;
}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(255,255,255,0.12);
  border:1px solid rgba(255,255,255,0.2);
  padding:6px 18px;
  border-radius:100px;
  font-size:0.85rem;
  margin-bottom:24px;
  color:rgba(255,255,255,0.9);
  backdrop-filter:blur(8px);
}
.page-hero h1{
  font-size:3rem;
  font-weight:700;
  line-height:1.2;
  margin-bottom:20px;
  color:#fff;
  letter-spacing:-0.02em;
}
.page-hero h1 span{
  color:var(--accent);
}
.hero-sub{
  font-size:1.15rem;
  line-height:1.8;
  color:rgba(255,255,255,0.85);
  max-width:680px;
  margin:0 auto 36px;
}
.hero-actions{
  display:flex;
  gap:16px;
  justify-content:center;
  flex-wrap:wrap;
}
.hero-meta{
  display:flex;
  gap:36px;
  justify-content:center;
  margin-top:48px;
  flex-wrap:wrap;
}
.hero-meta-item{
  text-align:center;
}
.hero-meta-item strong{
  display:block;
  font-size:1.8rem;
  font-weight:700;
  color:#fff;
}
.hero-meta-item span{
  font-size:0.9rem;
  color:rgba(255,255,255,0.7);
}
/* ================= Section Common ================= */
.section{
  padding:var(--space-xl) 0;
}
.section-dark{
  background:var(--bg-dark);
  color:rgba(255,255,255,0.85);
}
.section-dark .section-heading h2,
.section-dark .section-heading .section-title{
  color:#fff;
}
.section-gray{
  background:var(--bg-light);
}
.section-heading{
  text-align:center;
  max-width:720px;
  margin:0 auto 56px;
}
.section-tag{
  display:inline-block;
  font-size:0.85rem;
  font-weight:600;
  letter-spacing:0.05em;
  color:var(--accent);
  background:rgba(255,107,53,0.1);
  padding:6px 16px;
  border-radius:100px;
  margin-bottom:16px;
  text-transform:uppercase;
}
.section-heading h2{
  font-size:2.25rem;
  font-weight:700;
  color:var(--text-dark);
  line-height:1.25;
  margin-bottom:16px;
  letter-spacing:-0.02em;
}
.section-heading h2 span{
  color:var(--accent);
}
.section-heading p{
  font-size:1.05rem;
  color:var(--text-body);
  line-height:1.8;
}
/* ================= Overview ================= */
.overview-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:64px;
  align-items:center;
}
.overview-media{
  position:relative;
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-lg);
}
.overview-media img{
  width:100%;
  height:420px;
  object-fit:cover;
  transition:transform 0.6s ease;
}
.overview-media:hover img{
  transform:scale(1.04);
}
.overview-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,transparent 60%,rgba(9,29,48,0.45));
  pointer-events:none;
}
.overview-badge{
  position:absolute;
  bottom:24px;
  left:24px;
  z-index:2;
  background:rgba(255,255,255,0.95);
  color:var(--primary);
  padding:10px 20px;
  border-radius:12px;
  font-weight:700;
  font-size:0.95rem;
  box-shadow:var(--shadow-md);
}
.overview-content .section-tag{
  margin-bottom:12px;
}
.overview-content h2{
  font-size:2.1rem;
  color:var(--text-dark);
  line-height:1.3;
  margin-bottom:20px;
  letter-spacing:-0.02em;
}
.overview-content h2 span{
  color:var(--accent);
}
.overview-content p{
  margin-bottom:16px;
  font-size:1rem;
  line-height:1.85;
}
.overview-list{
  margin-top:24px;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:14px;
}
.overview-list li{
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:500;
  color:var(--text-dark);
  background:var(--bg-light);
  padding:12px 16px;
  border-radius:var(--radius-sm);
  border:1px solid var(--border-light);
}
.overview-list li i{
  color:var(--accent);
  font-size:1rem;
}
/* ================= Service Grid ================= */
.service-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.service-card{
  background:var(--bg-white);
  border:1px solid var(--border-light);
  border-radius:var(--radius);
  padding:32px 28px;
  transition:var(--transition);
  position:relative;
  overflow:hidden;
  box-shadow:var(--shadow-sm);
}
.service-card::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:4px;
  background:var(--accent);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform 0.4s ease;
}
.service-card:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-md);
  border-color:rgba(255,107,53,0.25);
}
.service-card:hover::before{
  transform:scaleX(1);
}
.service-card .icon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:60px;
  height:60px;
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  color:#fff;
  font-size:1.4rem;
  border-radius:16px;
  margin-bottom:20px;
  box-shadow:0 8px 20px rgba(15,43,70,0.2);
}
.service-card h3{
  font-size:1.2rem;
  font-weight:700;
  color:var(--text-dark);
  margin-bottom:12px;
}
.service-card p{
  font-size:0.95rem;
  line-height:1.75;
  color:var(--text-body);
  margin-bottom:16px;
}
.service-card .card-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-weight:600;
  font-size:0.9rem;
  color:var(--primary);
}
.service-card .card-link i{
  font-size:0.8rem;
  transition:transform 0.3s ease;
}
.service-card .card-link:hover i{
  transform:translateX(4px);
}
/* ================= Process ================= */
.process-band{
  background:var(--bg-dark);
  position:relative;
  overflow:hidden;
}
.process-band::before{
  content:"";
  position:absolute;
  top:0;
  right:0;
  width:400px;
  height:400px;
  background:radial-gradient(circle,rgba(255,107,53,0.12),transparent 60%);
  pointer-events:none;
}
.process-steps{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:32px;
  position:relative;
  z-index:2;
}
.process-step{
  text-align:center;
  padding:32px 24px;
  background:rgba(255,255,255,0.05);
  border:1px solid rgba(255,255,255,0.1);
  border-radius:var(--radius);
  transition:var(--transition);
  backdrop-filter:blur(8px);
}
.process-step:hover{
  background:rgba(255,255,255,0.09);
  transform:translateY(-4px);
}
.step-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:56px;
  height:56px;
  border-radius:50%;
  background:var(--accent);
  color:#fff;
  font-size:1.3rem;
  font-weight:700;
  margin-bottom:20px;
  box-shadow:0 8px 24px rgba(255,107,53,0.3);
}
.process-step h3{
  color:#fff;
  font-size:1.1rem;
  margin-bottom:10px;
}
.process-step p{
  font-size:0.9rem;
  color:rgba(255,255,255,0.65);
  line-height:1.7;
}
/* ================= Data / Stats ================= */
.stats-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.stat-card{
  text-align:center;
  padding:36px 24px;
  background:var(--bg-white);
  border-radius:var(--radius);
  border:1px solid var(--border-light);
  box-shadow:var(--shadow-sm);
  transition:var(--transition);
}
.stat-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-md);
}
.stat-card .stat-value{
  font-size:2.5rem;
  font-weight:700;
  color:var(--primary);
  line-height:1.2;
  margin-bottom:8px;
}
.stat-card .stat-value span{
  font-size:1.5rem;
  color:var(--accent);
}
.stat-card .stat-label{
  font-size:0.95rem;
  color:var(--text-body);
  font-weight:500;
}
/* ================= Case Grid ================= */
.case-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.case-card{
  background:var(--bg-white);
  border:1px solid var(--border-light);
  border-radius:var(--radius);
  overflow:hidden;
  transition:var(--transition);
  box-shadow:var(--shadow-sm);
}
.case-card:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-lg);
}
.case-thumb{
  position:relative;
  height:220px;
  overflow:hidden;
}
.case-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform 0.5s ease;
}
.case-card:hover .case-thumb img{
  transform:scale(1.06);
}
.case-thumb::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,transparent 55%,rgba(9,29,48,0.35));
}
.case-badge{
  position:absolute;
  top:16px;
  left:16px;
  z-index:2;
  background:rgba(255,107,53,0.95);
  color:#fff;
  font-size:0.8rem;
  font-weight:600;
  padding:4px 14px;
  border-radius:100px;
  backdrop-filter:blur(4px);
}
.case-body{
  padding:24px;
}
.case-body h3{
  font-size:1.1rem;
  font-weight:700;
  color:var(--text-dark);
  margin-bottom:8px;
}
.case-body p{
  font-size:0.9rem;
  color:var(--text-body);
  line-height:1.7;
  margin-bottom:16px;
}
.case-meta{
  display:flex;
  gap:16px;
  flex-wrap:wrap;
}
.case-meta span{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:0.85rem;
  color:var(--primary);
  font-weight:600;
  background:var(--bg-light);
  padding:4px 12px;
  border-radius:100px;
}
/* ================= FAQ ================= */
.faq-list{
  max-width:800px;
  margin:0 auto;
}
.faq-item{
  background:var(--bg-white);
  border:1px solid var(--border-light);
  border-radius:var(--radius-sm);
  margin-bottom:16px;
  overflow:hidden;
  transition:var(--transition);
}
.faq-item:hover{
  border-color:rgba(15,43,70,0.15);
  box-shadow:var(--shadow-sm);
}
.faq-question{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:20px 28px;
  cursor:pointer;
  font-weight:600;
  color:var(--text-dark);
  font-size:1rem;
  background:none;
  border:none;
  width:100%;
  text-align:left;
  gap:16px;
}
.faq-question i{
  color:var(--accent);
  transition:transform 0.3s ease;
  font-size:0.9rem;
  flex-shrink:0;
}
.faq-item.active .faq-question i{
  transform:rotate(180deg);
}
.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height 0.4s ease;
  padding:0 28px;
}
.faq-item.active .faq-answer{
  max-height:300px;
  padding-bottom:20px;
}
.faq-answer p{
  font-size:0.95rem;
  line-height:1.8;
  color:var(--text-body);
  border-top:1px solid var(--border-light);
  padding-top:16px;
}
/* ================= CTA ================= */
.cta-band{
  background:linear-gradient(135deg,var(--primary),var(--primary-dark)),url('/assets/images/backpic/back-3.png');
  background-size:cover;
  background-position:center;
  background-blend-mode:overlay;
  padding:80px 0;
  text-align:center;
  color:#fff;
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  top:-80px;
  left:-80px;
  width:300px;
  height:300px;
  background:radial-gradient(circle,rgba(255,107,53,0.3),transparent 60%);
  border-radius:50%;
  pointer-events:none;
}
.cta-band h2{
  font-size:2.25rem;
  font-weight:700;
  margin-bottom:16px;
  color:#fff;
  letter-spacing:-0.02em;
}
.cta-band p{
  font-size:1.1rem;
  color:rgba(255,255,255,0.8);
  max-width:640px;
  margin:0 auto 32px;
  line-height:1.8;
}
.cta-actions{
  display:flex;
  gap:16px;
  justify-content:center;
  flex-wrap:wrap;
}
/* ================= Footer ================= */
.site-footer{
  background:var(--primary-dark);
  color:rgba(255,255,255,0.75);
  padding:64px 0 0;
}
.footer__grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1.2fr;
  gap:48px;
  padding-bottom:48px;
}
.footer__brand{
  display:inline-block;
  font-size:1.6rem;
  font-weight:700;
  color:#fff;
  margin-bottom:16px;
}
.footer__brand span{
  color:var(--accent);
}
.footer__about{
  font-size:0.95rem;
  line-height:1.8;
  color:rgba(255,255,255,0.6);
  max-width:360px;
}
.footer__col h4{
  color:#fff;
  font-size:1.05rem;
  font-weight:600;
  margin-bottom:20px;
  position:relative;
  padding-bottom:10px;
}
.footer__col h4::after{
  content:"";
  position:absolute;
  bottom:0;
  left:0;
  width:32px;
  height:3px;
  background:var(--accent);
  border-radius:2px;
}
.footer__col ul li{
  margin-bottom:12px;
}
.footer__col ul li a{
  color:rgba(255,255,255,0.6);
  font-size:0.95rem;
  transition:var(--transition);
  display:inline-flex;
  align-items:center;
  gap:8px;
}
.footer__col ul li a:hover{
  color:#fff;
  padding-left:4px;
}
.footer__col ul li a i{
  color:var(--accent);
  width:16px;
  text-align:center;
}
.footer__bottom{
  border-top:1px solid rgba(255,255,255,0.1);
  padding:24px 0;
  text-align:center;
  font-size:0.88rem;
  color:rgba(255,255,255,0.45);
}
/* ================= Mobile ================= */
@media(max-width:1024px){
  .service-grid{
    grid-template-columns:repeat(2,1fr);
  }
  .case-grid{
    grid-template-columns:repeat(2,1fr);
  }
  .process-steps{
    grid-template-columns:repeat(2,1fr);
  }
  .stats-grid{
    grid-template-columns:repeat(2,1fr);
  }
  .overview-grid{
    grid-template-columns:1fr;
    gap:40px;
  }
  .footer__grid{
    grid-template-columns:1fr 1fr;
  }
}
@media(max-width:768px){
  :root{
    --space-lg:48px;
    --space-xl:64px;
  }
  .nav-wrapper{
    height:64px;
  }
  .main-nav{
    position:fixed;
    top:64px;
    left:0;
    right:0;
    background:var(--bg-white);
    flex-direction:column;
    align-items:flex-start;
    padding:16px 24px;
    gap:4px;
    box-shadow:var(--shadow-md);
    transform:translateY(-120%);
    opacity:0;
    pointer-events:none;
    transition:transform 0.3s ease,opacity 0.3s ease;
    z-index:999;
    border-bottom:1px solid var(--border-light);
    max-height:calc(100vh - 64px);
    overflow-y:auto;
  }
  .main-nav.open{
    transform:translateY(0);
    opacity:1;
    pointer-events:auto;
    flex-direction:column;
    align-items:stretch;
  }
  .main-nav .nav-link{
    display:block;
    padding:12px 16px;
    font-size:1rem;
    border-radius:10px;
  }
  .nav-cta{
    display:none;
  }
  .nav-toggle{
    display:flex;
  }
  .page-hero{
    padding:64px 0 80px;
  }
  .page-hero h1{
    font-size:2.1rem;
  }
  .hero-sub{
    font-size:1rem;
  }
  .section-heading h2{
    font-size:1.7rem;
  }
  .service-grid{
    grid-template-columns:1fr;
  }
  .case-grid{
    grid-template-columns:1fr;
  }
  .process-steps{
    grid-template-columns:1fr;
  }
  .stats-grid{
    grid-template-columns:repeat(2,1fr);
    gap:16px;
  }
  .stats-grid .stat-card{
    padding:24px 16px;
  }
  .stats-grid .stat-value{
    font-size:1.8rem;
  }
  .overview-list{
    grid-template-columns:1fr;
  }
  .footer__grid{
    grid-template-columns:1fr;
    gap:32px;
  }
  .hero-meta{
    gap:20px;
  }
  .cta-band h2{
    font-size:1.7rem;
  }
}
@media(max-width:520px){
  .container{
    padding:0 16px;
  }
  .page-hero h1{
    font-size:1.7rem;
  }
  .hero-actions{
    flex-direction:column;
    align-items:stretch;
  }
  .hero-actions .btn{
    width:100%;
  }
  .stats-grid{
    grid-template-columns:1fr;
  }
  .section{
    padding:48px 0;
  }
  .overview-media img{
    height:260px;
  }
  .service-card{
    padding:24px 20px;
  }
  .process-step{
    padding:24px 16px;
  }
  .case-thumb{
    height:180px;
  }
}

/* roulang page: category2 */
:root{
  --primary:#1e40af;
  --primary-light:#3b82f6;
  --primary-lighter:#eff6ff;
  --accent:#f59e0b;
  --accent-light:#fef3c7;
  --dark:#0f172a;
  --dark-2:#1e293b;
  --bg:#f8fafc;
  --surface:#ffffff;
  --text:#1e293b;
  --muted:#64748b;
  --border:#e2e8f0;
  --radius-sm:8px;
  --radius:14px;
  --radius-lg:24px;
  --shadow-sm:0 2px 8px rgba(15,23,42,.05);
  --shadow:0 16px 40px rgba(15,23,42,.08);
  --shadow-lg:0 28px 70px rgba(15,23,42,.14);
  --container:1200px;
  --font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --transition:all .25s ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font-family);background:var(--bg);color:var(--text);line-height:1.7;font-size:16px;overflow-x:hidden}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:var(--transition)}
ul,ol{list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-sm{padding:60px 0}
.section-head{text-align:center;max-width:720px;margin:0 auto 56px}
.section-eyebrow{display:inline-flex;align-items:center;gap:8px;background:var(--primary-lighter);color:var(--primary);font-size:14px;font-weight:600;padding:8px 18px;border-radius:999px;margin-bottom:16px;letter-spacing:.5px}
.section-head h2{font-size:38px;font-weight:800;line-height:1.25;color:var(--dark);letter-spacing:-1px}
.section-head p{color:var(--muted);font-size:17px;margin-top:14px}
.text-center{text-align:center}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:600;font-size:15px;line-height:1;padding:14px 30px;border-radius:999px;border:none;cursor:pointer;transition:var(--transition);white-space:nowrap}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;box-shadow:0 8px 24px rgba(30,64,175,.25)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(30,64,175,.32);background:linear-gradient(135deg,#1e3a8a,var(--primary-light))}
.btn-outline{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.7)}
.btn-outline:hover{background:rgba(255,255,255,.12);border-color:#fff;transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--primary);box-shadow:0 8px 20px rgba(15,23,42,.12)}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(15,23,42,.18)}
.btn-lg{padding:17px 38px;font-size:16px}
.btn:focus-visible{outline:3px solid var(--accent);outline-offset:3px}

.badge{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.25);color:#fff;font-size:13px;font-weight:600;padding:6px 16px;border-radius:999px;backdrop-filter:blur(6px)}

.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);backdrop-filter:blur(14px);border-bottom:1px solid rgba(226,232,240,.8);transition:var(--transition)}
.site-header.scrolled{box-shadow:0 6px 24px rgba(15,23,42,.06)}
.nav-wrapper{display:flex;align-items:center;justify-content:space-between;height:74px;gap:24px}
.brand{font-size:26px;font-weight:800;color:var(--dark);letter-spacing:-.5px;display:flex;align-items:center;line-height:1}
.brand span{color:var(--primary);font-weight:800}
.main-nav{display:flex;align-items:center;gap:6px}
.nav-link{position:relative;display:inline-block;padding:10px 16px;font-size:15px;font-weight:600;color:var(--dark-2);border-radius:10px;transition:var(--transition)}
.nav-link:hover{color:var(--primary);background:var(--primary-lighter)}
.nav-link.active{color:var(--primary);background:var(--primary-lighter)}
.nav-link.active::after{content:"";position:absolute;left:16px;right:16px;bottom:4px;height:2px;background:var(--primary);border-radius:2px}
.nav-cta{padding:10px 24px;font-size:14px}
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;background:transparent;border:1px solid var(--border);border-radius:10px;cursor:pointer;padding:10px}
.nav-toggle span{display:block;height:2px;width:100%;background:var(--dark);border-radius:2px;transition:var(--transition)}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.page-hero{position:relative;padding:110px 0 100px;background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;color:#fff;overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(15,23,42,.88) 0%,rgba(30,64,175,.72) 55%,rgba(15,23,42,.55) 100%)}
.page-hero .container{position:relative;z-index:2}
.hero-content{max-width:740px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.25);padding:8px 20px;border-radius:999px;font-size:14px;font-weight:600;margin-bottom:24px;backdrop-filter:blur(8px)}
.hero-badge i{color:var(--accent)}
.page-hero h1{font-size:50px;font-weight:800;line-height:1.18;letter-spacing:-1.2px;margin-bottom:20px}
.page-hero h1 span{color:#93c5fd}
.page-hero .hero-desc{font-size:18px;line-height:1.8;color:rgba(255,255,255,.9);max-width:640px;margin-bottom:36px}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:36px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px}
.hero-meta .badge i{color:#93c5fd;margin-right:6px}

.stats-band{background:var(--surface);border-bottom:1px solid var(--border);padding:48px 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat-item{text-align:center;padding:12px 20px;position:relative}
.stat-item::after{content:"";position:absolute;right:0;top:20%;height:60%;width:1px;background:var(--border)}
.stat-item:last-child::after{display:none}
.stat-num{display:block;font-size:44px;font-weight:800;color:var(--primary);line-height:1.2;letter-spacing:-1px}
.stat-num em{font-style:normal;color:var(--accent)}
.stat-label{display:block;font-size:15px;color:var(--muted);margin-top:6px;font-weight:500}

.services-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.service-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:36px 28px;transition:var(--transition);position:relative;overflow:hidden}
.service-card::before{content:"";position:absolute;top:0;left:0;width:100%;height:4px;background:linear-gradient(90deg,var(--primary),var(--accent));opacity:0;transition:var(--transition)}
.service-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:rgba(30,64,175,.2)}
.service-card:hover::before{opacity:1}
.service-icon{width:64px;height:64px;border-radius:18px;background:var(--primary-lighter);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:22px;transition:var(--transition)}
.service-card:hover .service-icon{background:var(--primary);color:#fff;transform:rotate(-4deg) scale(1.04)}
.service-card h3{font-size:20px;font-weight:700;color:var(--dark);margin-bottom:12px}
.service-card p{color:var(--muted);font-size:15px;line-height:1.7}

.process-band{position:relative;background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;padding:100px 0;color:#fff}
.process-band::before{content:"";position:absolute;inset:0;background:rgba(15,23,42,.9)}
.process-band .container{position:relative;z-index:2}
.process-band .section-head h2{color:#fff}
.process-band .section-head p{color:rgba(255,255,255,.75)}
.process-band .section-eyebrow{background:rgba(255,255,255,.12);color:#fff}
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;margin-top:16px}
.process-step{position:relative;padding:36px 28px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius-lg);backdrop-filter:blur(8px);transition:var(--transition)}
.process-step:hover{background:rgba(255,255,255,.1);transform:translateY(-6px)}
.process-num{font-size:52px;font-weight:800;color:rgba(255,255,255,.14);line-height:1;margin-bottom:14px;font-family:"Arial Black",sans-serif}
.process-step h3{font-size:19px;font-weight:700;margin-bottom:10px}
.process-step p{font-size:14px;line-height:1.7;color:rgba(255,255,255,.78)}
.process-step::after{content:"\f061";font-family:"Font Awesome 6 Free";font-weight:900;position:absolute;right:24px;top:36px;color:var(--accent);font-size:18px;opacity:.9}

.cases-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.case-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;transition:var(--transition);display:flex;flex-direction:column}
.case-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg)}
.case-card__media{position:relative;overflow:hidden;aspect-ratio:16/10}
.case-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.case-card:hover .case-card__media img{transform:scale(1.06)}
.case-card__media::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(15,23,42,.25),transparent 60%)}
.case-card__tag{position:absolute;left:18px;bottom:16px;z-index:2;background:rgba(255,255,255,.94);color:var(--primary);font-size:13px;font-weight:700;padding:6px 16px;border-radius:999px;box-shadow:var(--shadow-sm)}
.case-card__body{padding:26px 26px 30px;display:flex;flex-direction:column;flex:1}
.case-card__body h3{font-size:19px;font-weight:700;color:var(--dark);margin-bottom:10px}
.case-card__body p{color:var(--muted);font-size:15px;line-height:1.7;flex:1}
.text-link{display:inline-flex;align-items:center;gap:8px;margin-top:18px;color:var(--primary);font-weight:600;font-size:15px}
.text-link i{transition:transform .25s ease}
.text-link:hover{color:var(--primary-light)}
.text-link:hover i{transform:translateX(4px)}

.advantages-block{background:var(--surface);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.advantage-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.advantage-media{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg)}
.advantage-media img{width:100%;height:440px;object-fit:cover;transition:transform .6s ease}
.advantage-media:hover img{transform:scale(1.04)}
.advantage-media::after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(30,64,175,.18),transparent 65%)}
.advantage-media .badge{position:absolute;left:20px;bottom:20px;z-index:2;background:rgba(15,23,42,.65);font-size:13px}
.advantage-list{display:flex;flex-direction:column;gap:34px}
.advantage-item{display:flex;gap:18px}
.advantage-item .adv-icon{flex-shrink:0;width:52px;height:52px;border-radius:16px;background:var(--primary-lighter);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:20px}
.advantage-item h3{font-size:18px;font-weight:700;color:var(--dark);margin-bottom:6px}
.advantage-item p{color:var(--muted);font-size:15px;line-height:1.7}

.faq-list{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:16px}
.faq-item{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:0;overflow:hidden;transition:var(--transition)}
.faq-item:hover{border-color:rgba(30,64,175,.25);box-shadow:var(--shadow-sm)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:22px 26px;font-size:17px;font-weight:600;color:var(--dark);transition:var(--transition)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .faq-icon{flex-shrink:0;width:32px;height:32px;border-radius:50%;background:var(--primary-lighter);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:14px;transition:var(--transition)}
.faq-item[open] summary .faq-icon{background:var(--primary);color:#fff;transform:rotate(45deg)}
.faq-item[open] summary{border-bottom:1px solid var(--border)}
.faq-item .faq-answer{padding:0 26px 24px;color:var(--muted);font-size:15px;line-height:1.8}

.cta-band{position:relative;padding:100px 0;background:url('/assets/images/backpic/back-3.png') center/cover no-repeat;color:#fff;text-align:center}
.cta-band::before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(15,23,42,.92),rgba(30,64,175,.82))}
.cta-band .container{position:relative;z-index:2}
.cta-band h2{font-size:38px;font-weight:800;letter-spacing:-1px;margin-bottom:16px}
.cta-band p{font-size:17px;color:rgba(255,255,255,.85);max-width:620px;margin:0 auto 36px;line-height:1.8}
.cta-actions{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}

.site-footer{background:var(--dark);color:rgba(255,255,255,.78);padding:72px 0 0}
.footer__grid{display:grid;grid-template-columns:2fr 1fr 1.4fr;gap:48px;padding-bottom:52px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer__brand{font-size:28px;font-weight:800;color:#fff;display:inline-block;margin-bottom:16px}
.footer__brand span{color:var(--primary-light)}
.footer__about{font-size:15px;line-height:1.8;max-width:360px;color:rgba(255,255,255,.6)}
.footer__col h4{color:#fff;font-size:16px;font-weight:700;margin-bottom:20px}
.footer__col ul{display:flex;flex-direction:column;gap:12px}
.footer__col ul a{font-size:15px;color:rgba(255,255,255,.68);transition:var(--transition)}
.footer__col ul a:hover{color:#fff;padding-left:4px}
.footer__col ul a i{width:20px;color:var(--primary-light);margin-right:6px}
.footer__bottom{display:flex;justify-content:space-between;align-items:center;padding:24px 0;flex-wrap:wrap;gap:12px;font-size:14px;color:rgba(255,255,255,.45)}

@media(max-width:1024px){
  .section{padding:76px 0}
  .services-grid{grid-template-columns:repeat(2,1fr)}
  .process-grid{grid-template-columns:repeat(2,1fr)}
  .cases-grid{grid-template-columns:repeat(2,1fr)}
  .advantage-grid{grid-template-columns:1fr;gap:48px}
  .advantage-media img{height:380px}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:28px}
  .stat-item::after{display:none}
  .page-hero h1{font-size:40px}
}
@media(max-width:768px){
  .container{padding:0 20px}
  .nav-toggle{display:flex}
  .main-nav{position:fixed;top:74px;left:0;right:0;background:#fff;flex-direction:column;align-items:flex-start;padding:20px;gap:4px;box-shadow:0 20px 40px rgba(15,23,42,.1);border-bottom:1px solid var(--border);transform:translateY(-120%);opacity:0;visibility:hidden;transition:var(--transition)}
  .main-nav.open{transform:translateY(0);opacity:1;visibility:visible}
  .nav-link{width:100%;font-size:16px;padding:14px 16px}
  .nav-cta{display:none}
  .page-hero{padding:80px 0 70px}
  .page-hero h1{font-size:34px}
  .hero-desc{font-size:16px}
  .hero-actions .btn{width:100%;justify-content:center}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stat-num{font-size:36px}
  .section-head h2{font-size:30px}
  .section-head p{font-size:15px}
  .services-grid{grid-template-columns:1fr;gap:20px}
  .process-grid{grid-template-columns:1fr;gap:18px}
  .process-step::after{display:none}
  .cases-grid{grid-template-columns:1fr}
  .footer__grid{grid-template-columns:1fr;gap:36px}
  .advantage-grid{gap:36px}
  .advantage-item{gap:14px}
  .faq-item summary{font-size:15px;padding:18px 20px}
  .faq-item .faq-answer{padding:0 20px 18px}
  .cta-actions .btn{width:100%;justify-content:center}
  .footer__bottom{flex-direction:column;text-align:center}
}
@media(max-width:520px){
  .section{padding:60px 0}
  .page-hero h1{font-size:28px}
  .hero-badge{font-size:12px;padding:6px 14px}
  .hero-meta .badge{font-size:12px}
  .stats-grid{grid-template-columns:1fr 1fr;gap:24px 12px}
  .stat-num{font-size:32px}
  .stat-label{font-size:13px}
  .services-grid{grid-template-columns:1fr}
  .service-card{padding:28px 22px}
  .process-grid{grid-template-columns:1fr}
  .case-card__body{padding:22px 20px 26px}
  .cta-band h2{font-size:28px}
  .cta-band p{font-size:15px}
  .btn-lg{padding:15px 28px}
}