/* roulang page: index */
:root {
  --color-ink: #1A1D1E;
  --color-brand: #0F7B6C;
  --color-brand-dark: #0B6357;
  --color-bg: #F6F4F0;
  --color-surface: #FFFFFF;
  --color-body: #2A2E32;
  --color-muted: #6B7076;
  --color-line: #E6E3DE;
  --radius-md: 8px;
  --radius-lg: 14px;
  --radius-xl: 16px;
  --shadow-card: 0 1px 2px rgba(16,20,24,0.04), 0 8px 24px rgba(16,20,24,0.06);
  --shadow-hover: 0 2px 4px rgba(16,20,24,0.06), 0 16px 32px rgba(16,20,24,0.10);
  --focus-ring: 0 0 0 3px rgba(15,123,108,0.25);
}

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

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
  background: var(--color-bg);
  color: var(--color-body);
  line-height: 1.75;
  font-size: 1rem;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; background: none; border: none; }
input, textarea, select { font-family: inherit; }

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

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 64px;
  background: rgba(246, 244, 240, 0.82);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(246, 244, 240, 0.95);
  border-bottom-color: var(--color-line);
  box-shadow: 0 1px 8px rgba(16, 20, 24, 0.04);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  height: 64px;
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.nav-left, .nav-right {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
}
.nav-right {
  justify-content: flex-end;
}
.nav-left {
  justify-content: flex-start;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-ink);
  border-radius: var(--radius-md);
  transition: color 0.2s ease, background 0.2s ease;
  white-space: nowrap;
}
.nav-link:hover {
  color: var(--color-brand);
}
.nav-link:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}
.nav-link.active {
  color: var(--color-brand);
  font-weight: 600;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-ink);
  letter-spacing: 0.04em;
  transition: color 0.2s ease;
  flex-shrink: 0;
}
.logo svg {
  width: 24px;
  height: 24px;
  stroke: var(--color-brand);
  flex-shrink: 0;
}
.logo:hover { color: var(--color-brand); }
.logo:focus-visible { outline: none; box-shadow: var(--focus-ring); border-radius: 4px; }

.hamburger {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  transition: background 0.2s ease;
}
.hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-ink);
  margin: 2px 0;
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}
.hamburger:hover { background: rgba(15, 123, 108, 0.1); }
.hamburger:focus-visible { outline: none; box-shadow: var(--focus-ring); }
.hamburger.active span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-bg);
  z-index: 90;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}
.mobile-menu.open {
  opacity: 1;
  visibility: visible;
}
.mobile-menu a {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-ink);
  padding: 12px 24px;
  border-radius: var(--radius-md);
  transition: color 0.2s ease, background 0.2s ease;
  text-align: center;
}
.mobile-menu a:hover { color: var(--color-brand); }
.mobile-menu a:focus-visible { outline: none; box-shadow: var(--focus-ring); }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.4;
  border: 1px solid transparent;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
  cursor: pointer;
  gap: 8px;
}
.btn:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}
.btn-primary {
  background: var(--color-brand);
  color: #fff;
}
.btn-primary:hover {
  background: var(--color-brand-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}
.btn-primary:active {
  transform: translateY(0);
  background: #084d42;
}
.btn-outline {
  background: transparent;
  border-color: #C9C4BD;
  color: var(--color-ink);
}
.btn-outline:hover {
  border-color: var(--color-brand);
  color: var(--color-brand);
}
.btn-outline:active {
  transform: translateY(0);
  border-color: var(--color-brand-dark);
}
.btn-full { width: 100%; }

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  background-image:
    linear-gradient(100deg, rgba(246, 244, 240, 0.94) 30%, rgba(246, 244, 240, 0.82) 55%, rgba(26, 29, 30, 0.45) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  overflow: hidden;
}
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(26, 29, 30, 0.18) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: 0.35;
  pointer-events: none;
  z-index: 1;
}
.hero-content {
  position: relative;
  z-index: 2;
  padding-top: 80px;
  padding-bottom: 64px;
  max-width: 680px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(15, 123, 108, 0.08);
  border: 1px solid rgba(15, 123, 108, 0.16);
  border-radius: 999px;
  padding: 6px 16px;
  font-size: 0.8125rem;
  color: var(--color-brand);
  font-weight: 500;
  margin-bottom: 28px;
}
.hero-badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-brand);
  display: inline-block;
}
.hero-title {
  font-size: 3.5rem;
  line-height: 1.2;
  font-weight: 700;
  color: var(--color-ink);
  letter-spacing: -0.01em;
  margin-bottom: 24px;
}
.hero-subtitle {
  font-size: 1.125rem;
  line-height: 1.75;
  color: #5A5F64;
  margin-bottom: 36px;
  max-width: 560px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 56px;
}
.hero-metrics {
  display: flex;
  gap: 36px;
  flex-wrap: wrap;
  border-top: 1px solid rgba(26, 29, 30, 0.12);
  padding-top: 24px;
}
.hero-metrics span {
  font-size: 0.875rem;
  color: var(--color-muted);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.hero-metrics span::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-brand);
}

/* ===== Solutions Area ===== */
.solutions-area {
  padding: 96px 0;
  background: var(--color-surface);
}
.solutions-layout {
  display: grid;
  grid-template-columns: 40% 60%;
  gap: 64px;
  align-items: start;
}
.solutions-intro {
  position: sticky;
  top: 96px;
}
.solutions-intro h2 {
  font-size: 1.875rem;
  line-height: 1.35;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 16px;
}
.solutions-intro p {
  font-size: 1rem;
  color: var(--color-muted);
  line-height: 1.75;
  margin-bottom: 24px;
}
.solutions-intro img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  margin-top: 28px;
  width: 100%;
  height: 200px;
  object-fit: cover;
}
.solutions-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-brand);
  transition: color 0.2s ease, gap 0.2s ease;
}
.solutions-more:hover { color: var(--color-brand-dark); gap: 12px; }
.solutions-more:focus-visible { outline: none; box-shadow: var(--focus-ring); border-radius: 4px; }

.solutions-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.solution-card {
  background: var(--color-surface);
  border: 1px solid #EDEBE7;
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: box-shadow 0.25s ease, transform 0.25s ease, border-color 0.25s ease;
}
.solution-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
  border-color: rgba(15, 123, 108, 0.35);
}
.solution-card:focus-within {
  box-shadow: var(--shadow-hover);
  border-color: var(--color-brand);
}
.solution-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(15, 123, 108, 0.08);
  color: var(--color-brand);
  font-size: 1.25rem;
  margin-bottom: 20px;
  transition: background 0.25s ease, color 0.25s ease;
}
.solution-card:hover .solution-icon {
  background: var(--color-brand);
  color: #fff;
}
.solution-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: 10px;
}
.solution-card p {
  font-size: 0.9375rem;
  color: var(--color-muted);
  line-height: 1.7;
  margin-bottom: 16px;
}
.solution-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-brand);
  transition: color 0.2s ease, gap 0.2s ease;
}
.solution-link:hover { color: var(--color-brand-dark); gap: 10px; }
.solution-link:focus-visible { outline: none; box-shadow: var(--focus-ring); border-radius: 4px; }

/* ===== Data Section ===== */
.data-section {
  background: var(--color-ink);
  padding: 96px 0;
}
.data-section h2 {
  color: #fff;
  font-size: 1.875rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 64px;
  line-height: 1.35;
}
.data-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.data-item {
  border-right: 1px solid rgba(255, 255, 255, 0.14);
  padding: 20px 32px;
  text-align: center;
}
.data-item:first-child { padding-left: 0; }
.data-item:last-child { border-right: none; padding-right: 0; }
.data-number {
  font-size: 2.75rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 8px;
  font-family: "Inter", "PingFang SC", "Microsoft YaHei", sans-serif;
}
.data-label {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.5;
}

/* ===== Showcase ===== */
.showcase-section {
  padding: 96px 0;
  background: var(--color-bg);
}
.showcase-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.showcase-content h2 {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--color-ink);
  line-height: 1.35;
  margin-bottom: 20px;
}
.showcase-content p {
  font-size: 1rem;
  color: var(--color-muted);
  line-height: 1.8;
  margin-bottom: 28px;
}
.showcase-content ul {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.showcase-content ul li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9375rem;
  color: var(--color-body);
}
.showcase-content ul li i {
  color: var(--color-brand);
  margin-top: 4px;
}
.showcase-images {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.showcase-images img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  width: 100%;
  height: 280px;
  object-fit: cover;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.showcase-images img:first-child {
  margin-top: 24px;
}
.showcase-images img:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

/* ===== News Section ===== */
.news-section {
  padding: 96px 0;
  background: var(--color-surface);
}
.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 48px;
  gap: 24px;
}
.section-head h2 {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--color-ink);
}
.section-more {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-brand);
  transition: color 0.2s ease;
  white-space: nowrap;
}
.section-more:hover { color: var(--color-brand-dark); }
.section-more:focus-visible { outline: none; box-shadow: var(--focus-ring); border-radius: 4px; }

.news-list {
  border-top: 1px solid var(--color-line);
}
.news-item {
  display: flex;
  align-items: center;
  gap: 32px;
  padding: 28px 0;
  border-bottom: 1px solid var(--color-line);
  transition: background 0.2s ease;
}
.news-item:hover {
  background: rgba(246, 244, 240, 0.5);
}
.news-time {
  font-size: 0.875rem;
  color: var(--color-muted);
  white-space: nowrap;
  min-width: 96px;
  font-family: "Inter", "PingFang SC", sans-serif;
}
.news-body {
  flex: 1;
  min-width: 0;
}
.news-body h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: 6px;
  line-height: 1.4;
  transition: color 0.2s ease;
}
.news-item:hover .news-body h3 {
  color: var(--color-brand);
}
.news-body p {
  font-size: 0.875rem;
  color: var(--color-muted);
  line-height: 1.6;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}
.news-side {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}
.news-tag {
  display: inline-block;
  background: #E8F0EE;
  color: var(--color-brand-dark);
  font-size: 0.8125rem;
  font-weight: 500;
  padding: 4px 14px;
  border-radius: 999px;
  white-space: nowrap;
}
.news-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-brand);
  white-space: nowrap;
  transition: color 0.2s ease, gap 0.2s ease;
}
.news-link:hover { color: var(--color-brand-dark); gap: 10px; }
.news-link:focus-visible { outline: none; box-shadow: var(--focus-ring); border-radius: 4px; }

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 64px 24px;
  text-align: center;
  border-bottom: 1px solid var(--color-line);
}
.empty-state svg {
  width: 48px;
  height: 48px;
  color: var(--color-muted);
  opacity: 0.5;
}
.empty-state p {
  font-size: 1rem;
  color: var(--color-muted);
}

/* ===== FAQ Section ===== */
.faq-section {
  padding: 96px 0;
  background: var(--color-bg);
}
.faq-container {
  max-width: 840px;
}
.faq-container h2 {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--color-ink);
  text-align: center;
  margin-bottom: 48px;
}
.faq-list {
  border-top: 1px solid var(--color-line);
}
.faq-item {
  border-bottom: 1px solid var(--color-line);
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
  text-align: left;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-ink);
  transition: color 0.2s ease;
  gap: 16px;
}
.faq-question:hover {
  color: var(--color-brand);
}
.faq-question:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  border-radius: var(--radius-md);
}
.faq-question i {
  font-size: 0.875rem;
  color: var(--color-muted);
  transition: transform 0.25s ease, color 0.25s ease;
  flex-shrink: 0;
}
.faq-item.open .faq-question {
  color: var(--color-brand);
}
.faq-item.open .faq-question i {
  transform: rotate(180deg);
  color: var(--color-brand);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
}
.faq-answer p {
  font-size: 0.9375rem;
  color: var(--color-muted);
  line-height: 1.75;
  padding-bottom: 24px;
  max-width: 720px;
}

/* ===== CTA Section ===== */
.cta-section {
  padding: 96px 0;
  background: var(--color-surface);
  position: relative;
}
.cta-inner {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  background:
    linear-gradient(rgba(15, 123, 108, 0.05), rgba(15, 123, 108, 0.05)),
    url('/assets/images/coverpic/cover-2.png');
  background-size: cover;
  background-position: center;
  border-radius: var(--radius-xl);
  padding: 80px 48px;
  border: 1px solid var(--color-line);
}
.cta-inner h2 {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--color-ink);
  line-height: 1.3;
  margin-bottom: 16px;
}
.cta-inner p {
  font-size: 1.0625rem;
  color: var(--color-muted);
  margin-bottom: 32px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== Footer ===== */
.site-footer {
  background: #161819;
  padding: 64px 0 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-brand .footer-logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: 0.02em;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.footer-brand .footer-logo svg {
  width: 22px;
  height: 22px;
  stroke: var(--color-brand);
}
.footer-brand p {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.5);
  line-height: 1.7;
  max-width: 320px;
}
.footer-column h4 {
  font-size: 0.9375rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
}
.footer-column a,
.footer-column p {
  display: block;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 10px;
  transition: color 0.2s ease;
  line-height: 1.6;
}
.footer-column a:hover {
  color: var(--color-brand);
}
.footer-column a:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px rgba(15, 123, 108, 0.5);
  border-radius: 4px;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 20px 0;
  text-align: center;
}
.footer-bottom .container {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.35);
}

/* ===== Modal ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}
.modal-overlay.open {
  opacity: 1;
  visibility: visible;
}
.modal-card {
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  max-width: 560px;
  width: 100%;
  padding: 40px;
  position: relative;
  box-shadow: var(--shadow-hover);
  max-height: 92vh;
  overflow-y: auto;
}
.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--color-muted);
  font-size: 1rem;
  transition: background 0.2s ease, color 0.2s ease;
}
.modal-close:hover {
  background: var(--color-bg);
  color: var(--color-ink);
}
.modal-close:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}
.modal-card h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 8px;
}
.modal-sub {
  font-size: 0.875rem;
  color: var(--color-muted);
  margin-bottom: 32px;
}
.form-field {
  margin-bottom: 24px;
}
.form-field input,
.form-field textarea {
  width: 100%;
  border: none;
  border-bottom: 1px solid var(--color-line);
  background: transparent;
  padding: 10px 2px;
  font-size: 0.9375rem;
  color: var(--color-body);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  border-radius: 0;
}
.form-field input::placeholder,
.form-field textarea::placeholder {
  color: #A8A29A;
}
.form-field input:focus,
.form-field textarea:focus {
  outline: none;
  border-bottom-color: var(--color-brand);
  box-shadow: 0 2px 0 0 var(--color-brand);
}
.form-field textarea {
  min-height: 70px;
  resize: vertical;
}
.privacy-note {
  font-size: 0.75rem;
  color: var(--color-muted);
  text-align: center;
  margin-top: 16px;
  line-height: 1.6;
}
.privacy-note a {
  color: var(--color-brand);
  font-weight: 500;
}
.privacy-note a:hover { color: var(--color-brand-dark); }

/* ===== Scrollbar ===== */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--color-bg); }
::-webkit-scrollbar-thumb { background: #C9C4BD; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #A8A29A; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .solutions-layout {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .solutions-intro {
    position: static;
  }
  .solutions-intro img {
    max-width: 100%;
    height: 180px;
  }
  .showcase-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
  .data-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px 24px;
  }
  .data-item {
    border-right: none;
    padding: 0;
    text-align: center;
  }
}

@media (max-width: 768px) {
  .nav-left, .nav-right {
    display: none;
  }
  .hamburger {
    display: flex;
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
  }
  .nav-inner {
    justify-content: center;
  }
  .logo {
    font-size: 1rem;
  }
  .hero {
    min-height: 85vh;
    background-image:
      linear-gradient(180deg, rgba(246, 244, 240, 0.95) 20%, rgba(246, 244, 240, 0.85) 70%, rgba(26, 29, 30, 0.4) 100%),
      url('/assets/images/backpic/back-1.webp');
  }
  .hero-title {
    font-size: 1.875rem;
  }
  .hero-subtitle {
    font-size: 1rem;
  }
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
    margin-bottom: 40px;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .hero-metrics {
    gap: 16px;
    flex-direction: column;
    align-items: flex-start;
  }
  .solutions-area, .data-section, .showcase-section, .news-section, .faq-section, .cta-section {
    padding: 64px 0;
  }
  .solutions-grid {
    grid-template-columns: 1fr;
  }
  .data-number {
    font-size: 2rem;
  }
  .showcase-images {
    grid-template-columns: 1fr;
  }
  .showcase-images img {
    height: 200px;
  }
  .news-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  .news-time {
    min-width: auto;
    font-size: 0.8125rem;
  }
  .news-side {
    width: 100%;
    justify-content: space-between;
  }
  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  .faq-container h2 {
    font-size: 1.375rem;
  }
  .cta-inner {
    padding: 56px 24px;
  }
  .cta-inner h2 {
    font-size: 1.625rem;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .modal-card {
    padding: 32px 24px;
    border-radius: 16px 16px 0 0;
    max-height: 90vh;
  }
  .modal-overlay {
    align-items: flex-end;
    padding: 0;
  }
}

@media (max-width: 520px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
  .logo {
    font-size: 0.9375rem;
  }
  .hero-content {
    padding-top: 56px;
    padding-bottom: 48px;
  }
  .hero-title {
    font-size: 1.75rem;
  }
  .hero-subtitle {
    font-size: 0.9375rem;
  }
  .data-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .solutions-grid {
    gap: 16px;
  }
  .solution-card {
    padding: 24px 20px;
  }
}

/* roulang page: article */
:root {
  --color-ink: #1A1D1E;
  --color-brand: #0F7B6C;
  --color-brand-dark: #0B6357;
  --color-bg: #F6F4F0;
  --color-surface: #FFFFFF;
  --color-body: #2A2E32;
  --color-muted: #6B7076;
  --color-line: #E6E3DE;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, sans-serif;
  background-color: var(--color-bg);
  color: var(--color-body);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color 0.2s ease-out; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(15, 123, 108, 0.25);
  border-radius: 4px;
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}
.fade-in-up { animation: fadeInUp 0.6s ease-out both; }
.site-header {
  position: sticky; top: 0; z-index: 80; height: 64px;
  background: rgba(246, 244, 240, 0.88);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  transition: background-color 0.2s ease-out, box-shadow 0.2s ease-out;
}
.site-header.scrolled {
  background: rgba(246, 244, 240, 0.97);
  border-bottom: 1px solid var(--color-line);
}
.nav-inner {
  max-width: 1200px; margin: 0 auto; padding: 0 24px;
  height: 64px; display: flex; align-items: center; justify-content: space-between; position: relative;
}
.nav-left { display: flex; align-items: center; gap: 28px; flex: 1; justify-content: flex-start; }
.nav-right { display: flex; align-items: center; gap: 28px; flex: 1; justify-content: flex-end; }
.logo {
  position: absolute; left: 50%; transform: translateX(-50%);
  display: flex; align-items: center; gap: 8px;
  font-size: 1.05rem; font-weight: 700; color: var(--color-ink);
  letter-spacing: 0.04em; white-space: nowrap;
}
.logo svg { width: 26px; height: 26px; color: var(--color-brand); }
.nav-link {
  font-size: 0.9rem; font-weight: 500; color: var(--color-ink);
  padding: 6px 2px; position: relative; transition: color 0.2s ease-out;
  white-space: nowrap;
}
.nav-link::after {
  content: ''; position: absolute; left: 0; bottom: 0;
  width: 100%; height: 2px; background: var(--color-brand);
  transform: scaleX(0); transform-origin: left center;
  transition: transform 0.2s ease-out;
}
.nav-link:hover { color: var(--color-brand); }
.nav-link:hover::after { transform: scaleX(1); }
.nav-link.active { color: var(--color-brand); }
.nav-link.active::after { transform: scaleX(1); }
.hamburger { display: none; background: none; border: none; cursor: pointer; padding: 8px; z-index: 100; }
.hamburger span {
  display: block; width: 22px; height: 2px; background: var(--color-ink);
  margin: 5px 0; transition: transform 0.3s ease-out, opacity 0.3s ease-out;
  border-radius: 2px;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.mobile-menu {
  position: fixed; top: 0; left: 0; width: 100%; height: 100vh;
  background: rgba(246, 244, 240, 0.98);
  display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 32px;
  z-index: 90; opacity: 0; pointer-events: none; transition: opacity 0.3s ease-out;
}
.mobile-menu.open { opacity: 1; pointer-events: auto; }
.mobile-menu a { font-size: 1.4rem; font-weight: 600; color: var(--color-ink); transition: color 0.2s ease-out; }
.mobile-menu a:hover, .mobile-menu a.active { color: var(--color-brand); }
.site-footer {
  background: #161819; border-top: 1px solid rgba(230, 227, 222, 0.12);
  padding-top: 60px; margin-top: 0;
}
.footer-grid {
  display: grid; grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr; gap: 48px;
  padding-bottom: 48px;
}
.footer-logo {
  display: flex; align-items: center; gap: 8px;
  color: #fff; font-size: 1.05rem; font-weight: 700; letter-spacing: 0.04em; margin-bottom: 16px;
}
.footer-logo svg { width: 22px; height: 22px; color: var(--color-brand); }
.footer-brand p { color: #9CA3AF; font-size: 0.9rem; line-height: 1.7; max-width: 320px; }
.footer-column h4 { color: #fff; font-size: 0.95rem; font-weight: 600; margin-bottom: 16px; letter-spacing: 0.03em; }
.footer-column a { display: block; color: #9CA3AF; font-size: 0.85rem; margin-bottom: 10px; transition: color 0.2s ease-out; }
.footer-column a:hover { color: var(--color-brand); }
.footer-column p { color: #9CA3AF; font-size: 0.85rem; margin-bottom: 10px; line-height: 1.6; }
.footer-bottom {
  border-top: 1px solid rgba(230, 227, 222, 0.1);
  padding: 20px 0; text-align: center; color: #6B7280; font-size: 0.8rem;
}
.footer-bottom .container { display: flex; justify-content: center; align-items: center; }
.page-main { padding: 0 0 80px; }
.breadcrumb-bar {
  padding: 32px 0 0; max-width: 1200px; margin: 0 auto; padding-left: 24px; padding-right: 24px;
}
.breadcrumb {
  display: flex; align-items: center; flex-wrap: wrap;
  font-size: 0.8125rem; color: var(--color-muted); gap: 8px;
}
.breadcrumb a { color: var(--color-muted); transition: color 0.2s ease-out; }
.breadcrumb a:hover { color: var(--color-brand); }
.breadcrumb .sep { color: var(--color-line); }
.breadcrumb .current { color: var(--color-brand); font-weight: 500; }
.article-header {
  max-width: 720px; margin: 0 auto; padding: 40px 24px 0;
}
.article-title {
  font-size: 2.25rem; font-weight: 700; color: var(--color-ink);
  line-height: 1.3; letter-spacing: 0.01em;
}
.article-meta {
  display: flex; align-items: center; flex-wrap: wrap; gap: 10px;
  font-size: 0.875rem; color: var(--color-muted);
  margin-top: 20px; padding-bottom: 32px; border-bottom: 1px solid var(--color-line);
}
.article-meta .dot { width: 3px; height: 3px; border-radius: 50%; background: #C9C4BD; flex-shrink: 0; }
.article-cat { color: var(--color-brand); background: rgba(15,123,108,0.08); padding: 2px 10px; border-radius: 999px; font-size: 0.8125rem; }
.article-content {
  max-width: 720px; margin: 0 auto; padding: 40px 24px 24px;
}
.content-body { font-size: 1rem; line-height: 1.85; color: var(--color-body); }
.content-body p { margin-bottom: 1.6em; }
.content-body h2 {
  font-size: 1.5rem; font-weight: 700; color: var(--color-ink);
  margin: 2em 0 1em; padding-left: 14px; border-left: 2px solid var(--color-brand);
  line-height: 1.4;
}
.content-body h3 {
  font-size: 1.25rem; font-weight: 600; color: var(--color-ink);
  margin: 1.6em 0 0.8em; line-height: 1.5;
}
.content-body img { border: 1px solid var(--color-line); border-radius: 8px; margin: 2em auto; }
.content-body figcaption, .content-body .wp-caption-text {
  font-size: 0.875rem; color: var(--color-muted); text-align: center; margin-top: -1.4em; margin-bottom: 2em;
}
.content-body ul, .content-body ol { margin: 1.5em 0; padding-left: 1.5em; }
.content-body li { margin-bottom: 0.6em; }
.content-body blockquote {
  border-left: 3px solid var(--color-brand); background: rgba(15,123,108,0.05);
  padding: 16px 20px; border-radius: 0 8px 8px 0; margin: 1.6em 0; color: var(--color-muted);
}
.content-body a { color: var(--color-brand); border-bottom: 1px solid rgba(15,123,108,0.3); }
.content-body a:hover { color: var(--color-brand-dark); border-bottom-color: var(--color-brand-dark); }
.related-section {
  max-width: 1200px; margin: 0 auto; padding: 64px 24px 32px;
}
.related-head {
  display: flex; justify-content: space-between; align-items: center; margin-bottom: 32px;
}
.related-head h2 { font-size: 1.875rem; font-weight: 700; color: var(--color-ink); }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.related-card {
  background: var(--color-surface); border: 1px solid var(--color-line); border-radius: 14px;
  overflow: hidden; transition: box-shadow 0.25s ease-out, transform 0.25s ease-out;
  box-shadow: 0 1px 2px rgba(16,20,24,0.04), 0 8px 24px rgba(16,20,24,0.06);
  display: flex; flex-direction: column;
}
.related-card:hover {
  box-shadow: 0 2px 4px rgba(16,20,24,0.06), 0 16px 32px rgba(16,20,24,0.10);
  transform: translateY(-3px);
}
.related-card-img { position: relative; aspect-ratio: 16 / 9; overflow: hidden; background: var(--color-bg); }
.related-card-img img { width: 100%; height: 100%; object-fit: cover; }
.related-card-body { padding: 20px 22px 24px; flex: 1; display: flex; flex-direction: column; }
.related-card-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
.related-card-meta .cat {
  font-size: 0.8125rem; color: var(--color-brand); background: rgba(15,123,108,0.08);
  padding: 2px 10px; border-radius: 999px; font-weight: 500;
}
.related-card-meta .time { font-size: 0.8125rem; color: var(--color-muted); }
.related-card h3 { font-size: 1.05rem; font-weight: 600; color: var(--color-ink); line-height: 1.5; margin-bottom: 8px; }
.related-card h3 a:hover { color: var(--color-brand); }
.related-card p { font-size: 0.875rem; color: var(--color-muted); line-height: 1.65; flex: 1; }
.article-back {
  max-width: 720px; margin: 40px auto 0; padding: 0 24px 0;
  display: flex; align-items: center; gap: 16px;
}
.btn-back {
  display: inline-flex; align-items: center; gap: 8px;
  background: transparent; border: 1px solid #C9C4BD; color: var(--color-ink);
  border-radius: 8px; padding: 10px 22px; font-size: 0.9rem; font-weight: 500;
  transition: all 0.2s ease-out; cursor: pointer;
}
.btn-back:hover {
  border-color: var(--color-brand); color: var(--color-brand);
}
.cta-banner {
  max-width: 1200px; margin: 64px auto 0; padding: 0 24px;
}
.cta-inner {
  background: var(--color-ink); border-radius: 16px; padding: 56px 48px;
  display: flex; justify-content: space-between; align-items: center; gap: 40px; position: relative; overflow: hidden;
}
.cta-inner::before {
  content: ''; position: absolute; top: 0; right: 0; width: 300px; height: 100%;
  background: radial-gradient(circle at right center, rgba(15,123,108,0.15), transparent 70%);
}
.cta-inner h2 { font-size: 1.6rem; color: #fff; font-weight: 700; line-height: 1.4; }
.cta-inner p { color: #9CA3AF; font-size: 0.95rem; margin-top: 10px; max-width: 460px; }
.btn-cta-primary {
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--color-brand); color: #fff; border: none;
  padding: 13px 32px; border-radius: 8px; font-size: 0.95rem; font-weight: 600;
  cursor: pointer; transition: background-color 0.15s ease-out, transform 0.15s ease-out;
  white-space: nowrap; flex-shrink: 0;
}
.btn-cta-primary:hover { background: var(--color-brand-dark); transform: translateY(-2px); }
.not-found-box {
  max-width: 720px; margin: 0 auto; padding: 80px 24px; text-align: center;
}
.not-found-box .icon { font-size: 3rem; margin-bottom: 16px; color: #C9C4BD; }
.not-found-box h2 { font-size: 1.5rem; color: var(--color-ink); font-weight: 700; margin-bottom: 8px; }
.not-found-box p { color: var(--color-muted); margin-bottom: 24px; }
.btn-home {
  display: inline-flex; align-items: center;
  background: var(--color-brand); color: #fff; border-radius: 8px;
  padding: 10px 28px; font-size: 0.9rem; font-weight: 500;
  transition: background-color 0.2s ease-out;
}
.btn-home:hover { background: var(--color-brand-dark); }
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr 1fr; gap: 32px; }
  .nav-left { gap: 20px; }
  .nav-right { gap: 20px; }
}
@media (max-width: 768px) {
  .container { padding: 0 16px; }
  .nav-inner { padding: 0 16px; }
  .nav-left, .nav-right { display: none; }
  .logo { left: 16px; transform: none; position: relative; }
  .hamburger { display: block; margin-left: auto; }
  .page-main { padding-bottom: 48px; }
  .article-title { font-size: 1.6rem; }
  .article-header, .article-content { padding-left: 16px; padding-right: 16px; }
  .related-grid { grid-template-columns: 1fr; gap: 16px; }
  .breadcrumb-bar { padding-left: 16px; padding-right: 16px; }
  .cta-inner { flex-direction: column; padding: 36px 24px; align-items: flex-start; }
  .btn-cta-primary { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-brand p { max-width: 100%; }
  .footer-bottom .container { flex-direction: column; gap: 4px; }
}
@media (max-width: 520px) {
  .article-title { font-size: 1.4rem; }
  .related-head h2 { font-size: 1.375rem; }
  .footer-grid { grid-template-columns: 1fr; }
}

/* roulang page: category2 */
:root {
  --color-ink: #1A1D1E;
  --color-brand: #0F7B6C;
  --color-brand-dark: #0B6357;
  --color-bg: #F6F4F0;
  --color-surface: #FFFFFF;
  --color-body: #2A2E32;
  --color-muted: #6B7076;
  --color-line: #E6E3DE;
  --radius-lg: 14px;
  --radius-md: 8px;
  --shadow-card: 0 1px 2px rgba(16,20,24,0.04), 0 8px 24px rgba(16,20,24,0.06);
  --shadow-hover: 0 2px 4px rgba(16,20,24,0.06), 0 16px 32px rgba(16,20,24,0.10);
}
* {
  box-sizing: border-box;
}
html, body {
  margin: 0;
  padding: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
  background: var(--color-bg);
  color: var(--color-body);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
a {
  text-decoration: none;
  color: inherit;
}
img {
  max-width: 100%;
  display: block;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.container-narrow {
  max-width: 820px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== 导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: 64px;
  background: rgba(246,244,240,0.78);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: background 0.3s ease-out, border-color 0.3s ease-out, box-shadow 0.3s ease-out;
}
.site-header.scrolled {
  background: rgba(246,244,240,0.94);
  border-bottom: 1px solid var(--color-line);
  box-shadow: 0 4px 20px rgba(16,20,24,0.04);
}
.nav-inner {
  max-width: 1200px;
  height: 64px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
}
.nav-left,
.nav-right {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 1;
}
.nav-right {
  justify-content: flex-end;
}
.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-ink);
  padding: 8px 14px;
  border-radius: 6px;
  letter-spacing: 0.01em;
  transition: color 0.2s ease-out, background 0.2s ease-out;
}
.nav-link:hover {
  color: var(--color-brand);
  background: rgba(15,123,108,0.06);
}
.nav-link.active {
  color: var(--color-brand);
  font-weight: 600;
}
.logo {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-ink);
  letter-spacing: 0.06em;
  white-space: nowrap;
  transition: color 0.2s ease-out;
}
.logo svg {
  width: 22px;
  height: 22px;
  stroke: var(--color-brand);
}
.logo:hover {
  color: var(--color-brand);
}
.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 40px;
  height: 40px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  border-radius: 8px;
  transition: background 0.2s ease-out;
}
.hamburger:hover {
  background: rgba(15,123,108,0.08);
}
.hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-ink);
  border-radius: 2px;
  transition: transform 0.25s ease-out, opacity 0.2s ease-out;
}
.hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger.open span:nth-child(2) {
  opacity: 0;
}
.hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}
.mobile-menu {
  display: none;
  position: fixed;
  inset: 64px 0 0 0;
  background: rgba(246,244,240,0.98);
  backdrop-filter: blur(14px);
  z-index: 40;
  padding: 32px 24px;
  flex-direction: column;
  gap: 8px;
}
.mobile-menu.open {
  display: flex;
}
.mobile-menu .nav-link {
  font-size: 1.0625rem;
  padding: 14px 16px;
  border-bottom: 1px solid var(--color-line);
}

/* ===== 按钮 ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--color-brand);
  color: #FFFFFF;
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: 8px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.2s ease-out, transform 0.2s ease-out, box-shadow 0.2s ease-out;
  box-shadow: 0 1px 2px rgba(16,20,24,0.05);
}
.btn-primary:hover {
  background: var(--color-brand-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}
.btn-primary:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(15,123,108,0.25);
}
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: transparent;
  color: var(--color-ink);
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: 8px;
  border: 1px solid #C9C4BD;
  cursor: pointer;
  transition: border-color 0.2s ease-out, color 0.2s ease-out, transform 0.2s ease-out;
}
.btn-secondary:hover {
  border-color: var(--color-brand);
  color: var(--color-brand);
  transform: translateY(-2px);
}
.btn-secondary:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(15,123,108,0.25);
}

/* ===== Hero ===== */
.page-hero {
  position: relative;
  padding: 88px 0 72px;
  background: linear-gradient(to bottom, rgba(246,244,240,0.97), rgba(246,244,240,0.85)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  border-bottom: 1px solid var(--color-line);
}
.breadcrumb {
  font-size: 0.8125rem;
  color: var(--color-muted);
  margin-bottom: 24px;
  letter-spacing: 0.02em;
}
.breadcrumb a {
  color: var(--color-muted);
  transition: color 0.2s ease-out;
}
.breadcrumb a:hover {
  color: var(--color-brand);
}
.page-hero h1 {
  font-size: 3rem;
  line-height: 1.2;
  font-weight: 700;
  color: var(--color-ink);
  max-width: 720px;
  margin: 0 0 20px;
  letter-spacing: -0.02em;
}
.page-hero .subtitle {
  font-size: 1.125rem;
  line-height: 1.75;
  color: var(--color-muted);
  max-width: 640px;
  margin-bottom: 40px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* ===== 流程概览 ===== */
.process-section {
  padding: 88px 0;
}
.section-head {
  text-align: center;
  margin-bottom: 56px;
}
.section-head h2 {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--color-ink);
  line-height: 1.35;
  letter-spacing: -0.01em;
  margin: 0 0 16px;
}
.section-head p {
  font-size: 1rem;
  color: var(--color-muted);
  max-width: 560px;
  margin: 0 auto;
}
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 48px;
}
.process-card {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  box-shadow: var(--shadow-card);
  transition: box-shadow 0.25s ease-out, transform 0.25s ease-out;
  position: relative;
}
.process-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}
.process-step {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(15,123,108,0.1);
  color: var(--color-brand);
  font-size: 0.875rem;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}
.process-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-ink);
  margin: 0 0 10px;
}
.process-card p {
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--color-muted);
  margin: 0;
}
.process-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-line);
}
.process-image img {
  width: 100%;
  height: 340px;
  object-fit: cover;
}

/* ===== FAQ ===== */
.faq-section {
  padding: 88px 0;
  background: var(--color-surface);
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
}
.faq-list {
  display: flex;
  flex-direction: column;
}
.faq-item {
  border-bottom: 1px solid var(--color-line);
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  background: transparent;
  border: none;
  padding: 24px 0;
  cursor: pointer;
  text-align: left;
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-ink);
  transition: color 0.2s ease-out;
}
.faq-question:hover {
  color: var(--color-brand);
}
.faq-question:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(15,123,108,0.25);
  border-radius: 4px;
}
.faq-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  stroke: var(--color-muted);
  transition: stroke 0.2s ease-out, transform 0.25s ease-out;
}
.faq-question:hover .faq-icon {
  stroke: var(--color-brand);
}
.faq-item.open .faq-icon {
  transform: rotate(45deg);
  stroke: var(--color-brand);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
}
.faq-answer-inner {
  padding: 0 0 24px;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--color-muted);
  max-width: 680px;
}
.faq-answer-inner p {
  margin: 0 0 12px;
}
.faq-answer-inner p:last-child {
  margin-bottom: 0;
}

/* ===== 服务说明 ===== */
.service-section {
  padding: 88px 0;
  background: var(--color-ink);
  color: #FFFFFF;
}
.service-section .section-head h2 {
  color: #FFFFFF;
}
.service-section .section-head p {
  color: rgba(255,255,255,0.6);
}
.service-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 820px;
  margin: 0 auto;
}
.service-item {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: background 0.2s ease-out, transform 0.2s ease-out;
}
.service-item:hover {
  background: rgba(255,255,255,0.07);
  transform: translateY(-2px);
}
.service-item svg {
  width: 28px;
  height: 28px;
  stroke: var(--color-brand);
  margin-bottom: 16px;
}
.service-item h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: #FFFFFF;
  margin: 0 0 10px;
}
.service-item p {
  font-size: 0.875rem;
  line-height: 1.75;
  color: rgba(255,255,255,0.6);
  margin: 0;
}

/* ===== CTA ===== */
.cta-section {
  padding: 88px 0 72px;
}
.cta-card {
  max-width: 820px;
  margin: 0 auto;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: 16px;
  padding: 48px;
  text-align: center;
  box-shadow: var(--shadow-card);
}
.cta-card h2 {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-ink);
  margin: 0 0 16px;
  line-height: 1.3;
}
.cta-card p {
  font-size: 1rem;
  color: var(--color-muted);
  max-width: 520px;
  margin: 0 auto 32px;
}
.cta-card .btn-primary {
  margin-right: 12px;
}
.contact-inline {
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--color-line);
  display: flex;
  justify-content: center;
  gap: 32px;
  font-size: 0.875rem;
  color: var(--color-muted);
}
.contact-inline a {
  color: var(--color-brand);
  font-weight: 500;
  transition: color 0.2s ease-out;
}
.contact-inline a:hover {
  color: var(--color-brand-dark);
}

/* ===== 页脚 ===== */
.site-footer {
  background: #161819;
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 64px 0 0;
  color: rgba(255,255,255,0.55);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer-brand .footer-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.125rem;
  font-weight: 700;
  color: #FFFFFF;
  letter-spacing: 0.06em;
  margin-bottom: 16px;
}
.footer-brand .footer-logo svg {
  width: 22px;
  height: 22px;
  stroke: var(--color-brand);
}
.footer-brand p {
  font-size: 0.875rem;
  line-height: 1.75;
  margin: 0;
  max-width: 320px;
}
.footer-column h4 {
  font-size: 0.9375rem;
  font-weight: 600;
  color: #FFFFFF;
  margin: 0 0 16px;
  letter-spacing: 0.02em;
}
.footer-column a {
  display: block;
  font-size: 0.875rem;
  color: rgba(255,255,255,0.55);
  margin-bottom: 10px;
  transition: color 0.2s ease-out;
}
.footer-column a:hover {
  color: var(--color-brand);
}
.footer-column p {
  font-size: 0.875rem;
  margin: 0 0 10px;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 24px 0;
  text-align: center;
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.4);
  letter-spacing: 0.02em;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 768px) {
  .nav-left,
  .nav-right {
    display: none;
  }
  .hamburger {
    display: flex;
    margin-left: auto;
  }
  .nav-inner {
    justify-content: flex-start;
    padding: 0 16px;
  }
  .logo {
    position: static;
    transform: none;
    margin-right: auto;
    font-size: 1rem;
  }
  .page-hero {
    padding: 64px 0 56px;
  }
  .page-hero h1 {
    font-size: 1.875rem;
  }
  .page-hero .subtitle {
    font-size: 1rem;
  }
  .process-section,
  .faq-section,
  .service-section,
  .cta-section {
    padding: 64px 0;
  }
  .section-head h2 {
    font-size: 1.5rem;
  }
  .process-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .process-image img {
    height: 220px;
  }
  .service-grid {
    grid-template-columns: 1fr;
  }
  .cta-card {
    padding: 32px 20px;
  }
  .cta-card h2 {
    font-size: 1.5rem;
  }
  .cta-card .btn-primary {
    margin-right: 0;
    margin-bottom: 12px;
  }
  .contact-inline {
    flex-direction: column;
    gap: 8px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}
@media (max-width: 520px) {
  .container,
  .container-narrow {
    padding: 0 16px;
  }
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .hero-actions .btn-primary,
  .hero-actions .btn-secondary {
    width: 100%;
  }
  .process-card {
    padding: 24px 20px;
  }
  .faq-question {
    font-size: 0.9375rem;
    padding: 20px 0;
  }
  .faq-answer-inner {
    font-size: 0.875rem;
  }
  .service-item {
    padding: 24px 20px;
  }
  .cta-card .btn-primary,
  .cta-card .btn-secondary {
    width: 100%;
  }
}

/* roulang page: category1 */
:root {
            --color-ink: #1A1D1E;
            --color-brand: #0F7B6C;
            --color-brand-dark: #0B6357;
            --color-bg: #F6F4F0;
            --color-surface: #FFFFFF;
            --color-body: #2A2E32;
            --color-muted: #6B7076;
            --color-line: #E6E3DE;
            --radius-lg: 14px;
            --radius-md: 8px;
            --shadow-card: 0 1px 2px rgba(16, 20, 24, 0.04), 0 8px 24px rgba(16, 20, 24, 0.06);
            --shadow-hover: 0 2px 4px rgba(16, 20, 24, 0.06), 0 16px 32px rgba(16, 20, 24, 0.10);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
            line-height: 1.75;
            color: var(--color-body);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease-out;
        }

        button {
            font-family: inherit;
            cursor: pointer;
            background: none;
            border: none;
            padding: 0;
            color: inherit;
        }

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

        /* ===== 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            height: 64px;
            background: rgba(246, 244, 240, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid transparent;
            transition: background-color .25s ease, border-color .25s ease, box-shadow .25s ease;
        }

        .site-header.scrolled {
            background: rgba(246, 244, 240, 0.96);
            border-bottom-color: var(--color-line);
            box-shadow: 0 1px 8px rgba(16, 20, 24, 0.04);
        }

        .nav-inner {
            max-width: 1200px;
            height: 64px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            position: relative;
        }

        .nav-left,
        .nav-right {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .nav-link {
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--color-ink);
            letter-spacing: 0.01em;
            position: relative;
            white-space: nowrap;
            transition: color 0.2s ease-out;
        }

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

        .nav-link.active {
            color: var(--color-brand);
            font-weight: 600;
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: -6px;
            height: 2px;
            border-radius: 2px;
            background: var(--color-brand);
        }

        .logo {
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 1.125rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            color: var(--color-ink);
            white-space: nowrap;
            transition: opacity 0.2s ease-out;
        }

        .logo:hover {
            opacity: 0.85;
        }

        .logo svg {
            width: 24px;
            height: 24px;
            color: var(--color-brand);
            flex-shrink: 0;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 40px;
            height: 40px;
            padding: 8px;
            border-radius: var(--radius-md);
            transition: background-color 0.2s ease-out;
        }

        .hamburger:hover {
            background: rgba(26, 29, 30, 0.05);
        }

        .hamburger span {
            display: block;
            height: 2px;
            width: 20px;
            margin: 0 auto;
            background: var(--color-ink);
            border-radius: 2px;
            transition: transform 0.2s ease-out, opacity 0.2s ease-out;
        }

        /* ===== 顶部横幅 ===== */
        .page-banner {
            position: relative;
            padding: 96px 0 120px;
            background-size: cover;
            background-position: center;
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(26, 29, 30, 0.88) 0%, rgba(26, 29, 30, 0.62) 55%, rgba(26, 29, 30, 0.30) 100%);
            z-index: 1;
        }

        .page-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background-image: radial-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px);
            background-size: 24px 24px;
            z-index: 1;
            pointer-events: none;
        }

        .banner-inner {
            position: relative;
            z-index: 2;
            max-width: 640px;
        }

        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: rgba(255, 255, 255, 0.9);
            font-size: 0.8125rem;
            letter-spacing: 0.04em;
            margin-bottom: 24px;
        }

        .page-banner h1 {
            margin: 0 0 20px;
            font-size: 3.25rem;
            line-height: 1.2;
            font-weight: 700;
            color: #FFFFFF;
            letter-spacing: -0.01em;
        }

        .banner-inner p {
            margin: 0 0 32px;
            font-size: 1.125rem;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.88);
            max-width: 540px;
        }

        .banner-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 0.9375rem;
            font-weight: 600;
            line-height: 1;
            padding: 14px 28px;
            border-radius: var(--radius-md);
            transition: background-color 0.15s ease-out, color 0.15s ease-out, border-color 0.15s ease-out, box-shadow 0.15s ease-out, transform 0.15s ease-out;
            cursor: pointer;
            outline: none;
            border: 1px solid transparent;
            text-align: center;
        }

        .btn-primary {
            background: var(--color-brand);
            color: #FFFFFF;
        }

        .btn-primary:hover {
            background: var(--color-brand-dark);
            transform: translateY(-1px);
        }

        .btn-primary:focus-visible {
            box-shadow: 0 0 0 3px rgba(15, 123, 108, 0.25);
        }

        .btn-secondary {
            background: transparent;
            border-color: #C9C4BD;
            color: #1A1D1E;
        }

        .btn-secondary:hover {
            border-color: var(--color-brand);
            color: var(--color-brand);
        }

        .btn-secondary:focus-visible {
            box-shadow: 0 0 0 3px rgba(15, 123, 108, 0.25);
        }

        .btn-white {
            background: #FFFFFF;
            color: var(--color-ink);
        }

        .btn-white:hover {
            background: rgba(255, 255, 255, 0.9);
            transform: translateY(-1px);
        }

        /* ===== 主内容布局 ===== */
        .page-layout {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 300px;
            gap: 48px;
            padding-top: 48px;
            padding-bottom: 64px;
            align-items: start;
        }

        .content-main {
            min-width: 0;
        }

        .content-side {
            position: sticky;
            top: 96px;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        /* ===== 正文区块 ===== */
        .content-section {
            margin-bottom: 48px;
        }

        .content-section:last-child {
            margin-bottom: 0;
        }

        .section-label {
            display: inline-block;
            padding: 2px 12px;
            border-radius: 999px;
            background: rgba(15, 123, 108, 0.10);
            color: var(--color-brand-dark);
            font-size: 0.8125rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            margin-bottom: 12px;
        }

        .content-section h2 {
            margin: 0 0 16px;
            font-size: 1.875rem;
            line-height: 1.35;
            font-weight: 700;
            color: var(--color-ink);
        }

        .content-section h3 {
            margin: 0 0 8px;
            font-size: 1.25rem;
            line-height: 1.4;
            font-weight: 600;
            color: var(--color-ink);
        }

        .content-section p {
            margin: 0 0 16px;
            font-size: 1rem;
            line-height: 1.85;
            color: var(--color-body);
        }

        .content-section p:last-child {
            margin-bottom: 0;
        }

        .content-image {
            margin: 24px 0;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--color-line);
            box-shadow: var(--shadow-card);
        }

        .content-image img {
            width: 100%;
            height: 240px;
            object-fit: cover;
        }

        .content-image figcaption {
            padding: 10px 16px;
            font-size: 0.8125rem;
            color: var(--color-muted);
            background: var(--color-surface);
            border-top: 1px solid var(--color-line);
        }

        /* ===== 能力卡片 ===== */
        .capability-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-top: 20px;
        }

        .capability-card {
            background: var(--color-surface);
            border: 1px solid #EDEBE7;
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: 0 1px 2px rgba(16, 20, 24, 0.03);
            transition: box-shadow 0.2s ease-out, transform 0.2s ease-out, border-color 0.2s ease-out;
        }

        .capability-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: rgba(15, 123, 108, 0.25);
        }

        .capability-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(15, 123, 108, 0.10);
            margin-bottom: 16px;
        }

        .capability-icon svg {
            width: 18px;
            height: 18px;
            stroke: var(--color-brand);
        }

        /* ===== 安全列表 ===== */
        .security-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
            margin-top: 20px;
        }

        .security-item {
            padding: 20px;
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-md);
            transition: background-color 0.2s ease-out, border-color 0.2s ease-out;
        }

        .security-item:hover {
            border-color: rgba(15, 123, 108, 0.3);
        }

        .security-item strong {
            display: block;
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-ink);
            margin-bottom: 4px;
        }

        .security-item span {
            font-size: 0.875rem;
            line-height: 1.65;
            color: var(--color-muted);
        }

        /* ===== 部署流程 ===== */
        .deploy-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-top: 20px;
        }

        .deploy-card {
            padding: 20px;
            border-left: 3px solid var(--color-brand);
            background: var(--color-surface);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            box-shadow: 0 1px 2px rgba(16, 20, 24, 0.03);
        }

        .deploy-card h3 {
            font-size: 1.0625rem;
            margin-bottom: 6px;
        }

        .deploy-card p {
            font-size: 0.875rem;
            color: var(--color-muted);
            margin: 0;
        }

        /* ===== FAQ ===== */
        .faq-list {
            margin-top: 20px;
            border-top: 1px solid var(--color-line);
        }

        .faq-item {
            border-bottom: 1px solid var(--color-line);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            width: 100%;
            padding: 20px 0;
            text-align: left;
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-ink);
            transition: color 0.2s ease-out;
        }

        .faq-question:hover {
            color: var(--color-brand);
        }

        .faq-icon {
            width: 18px;
            height: 18px;
            flex-shrink: 0;
            color: var(--color-muted);
            transition: transform 0.25s ease-out, color 0.2s ease-out;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            color: var(--color-brand);
        }

        .faq-answer {
            display: none;
            padding: 0 0 20px;
            font-size: 0.9375rem;
            line-height: 1.8;
            color: var(--color-muted);
            max-width: 640px;
        }

        .faq-answer p {
            margin: 0;
        }

        .faq-item.active .faq-answer {
            display: block;
            animation: fadeIn 0.25s ease-out;
        }

        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(-4px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* ===== 侧栏 ===== */
        .side-card {
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: 0 1px 2px rgba(16, 20, 24, 0.03);
        }

        .side-card h3 {
            margin: 0 0 16px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-ink);
        }

        .side-nav-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .side-nav-list li {
            border-bottom: 1px solid var(--color-line);
        }

        .side-nav-list li:last-child {
            border-bottom: none;
        }

        .side-nav-list a {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 12px 0;
            font-size: 0.875rem;
            color: var(--color-body);
            transition: color 0.2s ease-out;
        }

        .side-nav-list a::before {
            content: '';
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--color-brand);
            opacity: 0.4;
            transition: opacity 0.2s ease-out;
        }

        .side-nav-list a:hover {
            color: var(--color-brand);
        }

        .side-nav-list a:hover::before {
            opacity: 1;
        }

        .side-stats {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .side-stat {
            text-align: left;
        }

        .side-stat strong {
            display: block;
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--color-ink);
            line-height: 1.2;
            letter-spacing: -0.01em;
        }

        .side-stat span {
            font-size: 0.8125rem;
            color: var(--color-muted);
        }

        .side-cta {
            background: var(--color-ink);
            border-color: var(--color-ink);
            color: #FFFFFF;
        }

        .side-cta h3 {
            color: #FFFFFF;
        }

        .side-cta p {
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 20px;
        }

        /* ===== CTA区块 ===== */
        .cta-section {
            padding: 80px 0;
            background: var(--color-ink);
            color: #FFFFFF;
            text-align: center;
        }

        .cta-section h2 {
            margin: 0 0 16px;
            font-size: 2rem;
            line-height: 1.35;
            font-weight: 700;
            color: #FFFFFF;
        }

        .cta-section p {
            max-width: 520px;
            margin: 0 auto 32px;
            font-size: 1rem;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.75);
        }

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

        /* ===== 页脚 ===== */
        .site-footer {
            background: #161819;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            color: rgba(255, 255, 255, 0.65);
            padding-top: 64px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
            gap: 48px;
            padding-bottom: 48px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.125rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 16px;
        }

        .footer-logo svg {
            width: 22px;
            height: 22px;
            color: var(--color-brand);
        }

        .footer-brand p {
            font-size: 0.875rem;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.5);
            margin: 0;
            max-width: 320px;
        }

        .footer-column h4 {
            font-size: 0.875rem;
            font-weight: 600;
            color: #FFFFFF;
            margin: 0 0 16px;
        }

        .footer-column a {
            display: block;
            padding: 4px 0;
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.55);
            transition: color 0.2s ease-out;
        }

        .footer-column a:hover {
            color: var(--color-brand);
        }

        .footer-column p {
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.55);
            margin: 0 0 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 20px 0;
            text-align: center;
            font-size: 0.8125rem;
            color: rgba(255, 255, 255, 0.35);
        }

        .footer-bottom .container {
            display: flex;
            justify-content: center;
            align-items: center;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .page-layout {
                grid-template-columns: 1fr;
            }

            .content-side {
                position: static;
                flex-direction: row;
                flex-wrap: wrap;
            }

            .side-card {
                flex: 1;
                min-width: 220px;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .nav-left,
            .nav-right {
                display: none;
            }

            .hamburger {
                display: flex;
            }

            .site-header.menu-open .nav-inner {
                position: fixed;
                top: 0;
                left: 0;
                right: 0;
                height: 100vh;
                background: var(--color-bg);
                flex-direction: column;
                align-items: flex-start;
                justify-content: flex-start;
                padding: 80px 24px 24px;
                overflow-y: auto;
                z-index: 98;
            }

            .site-header.menu-open .logo {
                position: fixed;
                top: 14px;
                left: 50%;
                transform: translateX(-50%);
                z-index: 99;
            }

            .site-header.menu-open .hamburger {
                position: fixed;
                top: 10px;
                right: 12px;
                z-index: 99;
            }

            .site-header.menu-open .nav-left,
            .site-header.menu-open .nav-right {
                display: flex;
                flex-direction: column;
                align-items: flex-start;
                width: 100%;
                gap: 4px;
                padding: 0;
            }

            .site-header.menu-open .nav-link {
                width: 100%;
                padding: 12px 0;
                font-size: 1.0625rem;
                border-bottom: 1px solid var(--color-line);
                border-radius: 0;
            }

            .site-header.menu-open .nav-link.active::after {
                display: none;
            }

            .page-banner {
                padding: 64px 0 80px;
            }

            .page-banner h1 {
                font-size: 1.875rem;
                line-height: 1.25;
            }

            .banner-inner p {
                font-size: 1rem;
            }

            .banner-actions {
                flex-direction: column;
                align-items: flex-start;
                width: 100%;
            }

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

            .page-layout {
                padding-top: 32px;
                padding-bottom: 48px;
                gap: 32px;
            }

            .content-section h2 {
                font-size: 1.375rem;
            }

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

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

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

            .cta-section {
                padding: 64px 0;
            }

            .cta-section h2 {
                font-size: 1.5rem;
            }

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

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

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
                padding-bottom: 32px;
            }
        }

        @media (max-width: 520px) {
            .page-banner h1 {
                font-size: 1.625rem;
            }

            .banner-inner p {
                font-size: 0.9375rem;
            }

            .btn {
                width: 100%;
                justify-content: center;
            }

            .content-section h3 {
                font-size: 1.125rem;
            }

            .capability-card {
                padding: 20px;
            }

            .side-card {
                min-width: 100%;
            }
        }