/* roulang page: index */
/* ========== Design Variables ========== */
:root {
  --primary: #205C6B;
  --primary-dark: #174A56;
  --primary-light: #E8F0F2;
  --accent: #D99A4E;
  --accent-dark: #C4873A;
  --page-bg: #F6F8FA;
  --card: #FFFFFF;
  --text: #1F2D3D;
  --text-muted: #5B6B7B;
  --border: #E3E9EE;
  --radius-card: 12px;
  --radius-btn: 8px;
  --radius-pill: 999px;
  --shadow-sm: 0 2px 12px rgba(32,92,107,0.08);
  --shadow-lg: 0 12px 24px rgba(32,92,107,0.12);
  --transition: 0.25s ease;
  --nav-h: 72px;
  --font-serif: 'Noto Serif SC', 'Songti SC', 'SimSun', serif;
  --font-sans: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
}

/* ========== Reset / Base ========== */
*, *::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: 1.75;
  color: var(--text);
  background: var(--page-bg);
  -webkit-font-smoothing: antialiased;
  padding-bottom: 90px;
}
@media (min-width: 768px) { body { padding-bottom: 0; } }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
ul, ol { list-style: none; }
button, input, textarea { font-family: inherit; font-size: inherit; border: none; outline: none; background: none; }
h1, h2, h3, h4, h5 { font-family: var(--font-serif); color: var(--text); line-height: 1.3; font-weight: 700; }
::selection { background: rgba(217,154,78,0.25); }
:focus-visible { outline: 3px solid rgba(217,154,78,0.5); outline-offset: 2px; }

/* ========== Container ========== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
@media (max-width: 1023px) { .container { padding: 0 20px; } }
@media (max-width: 520px) { .container { padding: 0 16px; } }

/* ========== Section Spacing ========== */
section { padding: 96px 0; }
@media (max-width: 767px) { section { padding: 56px 0; } }
.section-label {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  padding: 6px 18px;
  border-radius: var(--radius-pill);
  letter-spacing: 2px;
  margin-bottom: 16px;
  text-transform: uppercase;
}
.section-title { font-size: 34px; line-height: 1.3; margin-bottom: 16px; }
.section-sub { font-size: 16px; color: var(--text-muted); max-width: 680px; line-height: 1.75; }
@media (max-width: 767px) { .section-title { font-size: 26px; } }
.text-center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* ========== Buttons ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 12px 32px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.2;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  gap: 8px;
}
.btn i { transition: transform var(--transition); }
.btn:hover i { transform: translateX(4px); }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: var(--accent-dark); color: #fff; transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.btn-outline { background: transparent; color: var(--primary); border: 2px solid var(--primary); }
.btn-outline:hover { background: var(--primary-light); color: var(--primary-dark); transform: translateY(-2px); }
.btn-outline-light { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,0.7); }
.btn-outline-light:hover { background: rgba(255,255,255,0.15); border-color: #fff; color: #fff; transform: translateY(-2px); }
@media (max-width: 520px) {
  .btn { padding: 10px 22px; font-size: 14px; }
}

/* ========== Badge / Tag ========== */
.badge, .category-badge {
  display: inline-block;
  background: rgba(217,154,78,0.12);
  color: #C4873A;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  letter-spacing: 0.5px;
}
.tag {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 500;
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  margin: 4px 4px 0 0;
}

/* ========== Header / Navigation ========== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border-bottom: 1px solid rgba(255,255,255,0.25);
  z-index: 999;
  transition: var(--transition);
}
.site-header.scrolled {
  background: rgba(255,255,255,0.95);
  border-bottom-color: var(--border);
  box-shadow: var(--shadow-sm);
}
.site-header.scrolled .nav-logo-text,
.site-header.scrolled .nav-links a,
.site-header.scrolled .nav-toggle i { color: var(--text); }
.site-header.scrolled .nav-slogan { color: var(--text-muted); }
.site-header.scrolled .nav-links a.active::after { background: var(--accent); }

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
@media (max-width: 1023px) { .nav-container { padding: 0 20px; } }
@media (max-width: 520px) { .nav-container { padding: 0 16px; } }

.nav-logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.nav-logo-mark { width: 38px; height: 38px; flex-shrink: 0; }
.nav-logo-text { font-family: var(--font-serif); font-size: 22px; font-weight: 700; color: #fff; letter-spacing: 2px; transition: var(--transition); }
.nav-logo-sub { font-size: 10px; letter-spacing: 3px; color: rgba(255,255,255,0.75); display: block; line-height: 1.2; margin-top: 2px; }
.site-header.scrolled .nav-logo-sub { color: var(--text-muted); }

.nav-links-wrap { display: flex; align-items: center; gap: 8px; }
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a {
  position: relative;
  padding: 8px 14px;
  font-size: 15px;
  font-weight: 500;
  color: rgba(255,255,255,0.92);
  border-radius: var(--radius-btn);
  transition: var(--transition);
  white-space: nowrap;
}
.site-header.scrolled .nav-links a { color: var(--text); }
.nav-links a:hover { opacity: 0.8; }
.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 14px;
  right: 14px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
}
.site-header.scrolled .nav-links a.active::after { background: var(--accent); }

.nav-right { display: flex; align-items: center; gap: 14px; }
.nav-search { color: rgba(255,255,255,0.85); font-size: 17px; cursor: pointer; transition: var(--transition); }
.site-header.scrolled .nav-search { color: var(--text); }
.nav-search:hover { opacity: 0.7; }
.nav-cta { min-height: 38px; padding: 8px 22px; font-size: 14px; background: var(--accent); color: #fff; border-radius: var(--radius-btn); display: inline-flex; align-items: center; cursor: pointer; transition: var(--transition); }
.nav-cta:hover { background: var(--accent-dark); transform: translateY(-2px); box-shadow: var(--shadow-lg); }

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
  cursor: pointer;
  z-index: 1001;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  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); }

/* Mobile drawer */
.mobile-drawer {
  position: fixed;
  top: var(--nav-h);
  left: 0;
  right: 0;
  background: #fff;
  box-shadow: var(--shadow-lg);
  padding: 12px 20px 20px;
  display: none;
  flex-direction: column;
  gap: 4px;
  z-index: 998;
  border-radius: 0 0 16px 16px;
}
.mobile-drawer.open { display: flex; }
.mobile-drawer a { padding: 12px 16px; font-size: 16px; font-weight: 500; color: var(--text); border-radius: var(--radius-btn); }
.mobile-drawer a:hover { background: var(--primary-light); }
.mobile-drawer a.active { background: var(--primary-light); color: var(--primary); }

/* ========== Hero ========== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #fff;
  overflow: hidden;
  padding-top: 72px;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-color: var(--primary-dark);
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba(23,74,86,0.5);
}
.hero-content { position: relative; z-index: 2; max-width: 860px; padding: 0 24px; }
.hero h1 {
  font-size: 46px;
  line-height: 1.25;
  color: #fff;
  margin-bottom: 20px;
  font-weight: 700;
  letter-spacing: 2px;
}
.hero-sub {
  font-size: 17px;
  line-height: 1.75;
  color: rgba(255,255,255,0.85);
  max-width: 640px;
  margin: 0 auto 36px;
}
.hero-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

.scroll-indicator {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  width: 24px;
  height: 40px;
  border: 2px solid rgba(255,255,255,0.6);
  border-radius: 20px;
  cursor: pointer;
  transition: var(--transition);
}
.scroll-indicator::after {
  content: '';
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 8px;
  background: rgba(255,255,255,0.8);
  border-radius: 4px;
  animation: scroll-dot 2s infinite;
}
@keyframes scroll-dot {
  0%, 20% { opacity: 1; transform: translate(-50%, 0); }
  70% { opacity: 0; transform: translate(-50%, 12px); }
  100% { opacity: 1; transform: translate(-50%, 0); }
}
.scroll-indicator:hover { border-color: var(--accent); }
.scroll-indicator:hover::after { background: var(--accent); }

@media (max-width: 767px) {
  .hero h1 { font-size: 34px; }
  .hero-sub { font-size: 15px; }
}

/* ========== Features ========== */
.features-section { background: #fff; }
.feature-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 36px 28px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(32,92,107,0.25);
}
.feature-icon {
  width: 48px;
  height: 48px;
  background: var(--primary-light);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 20px;
  margin-bottom: 20px;
  transition: var(--transition);
}
.feature-card:hover .feature-icon { background: var(--primary); color: #fff; }
.feature-card h3 { font-size: 20px; margin-bottom: 12px; }
.feature-card p { font-size: 14px; line-height: 1.75; color: var(--text-muted); }

/* ========== Scenario ========== */
.scenario-section { background: var(--page-bg); }
.scenario-block {
  display: flex;
  align-items: center;
  gap: 48px;
  margin-bottom: 72px;
}
.scenario-block:last-child { margin-bottom: 0; }
.scenario-media { flex: 1; border-radius: var(--radius-card); overflow: hidden; box-shadow: var(--shadow-sm); }
.scenario-media img { width: 100%; aspect-ratio: 16/10; object-fit: cover; transition: transform var(--transition); }
.scenario-block:hover .scenario-media img { transform: scale(1.03); }
.scenario-content { flex: 1; }
.scenario-content h3 { font-size: 24px; margin-bottom: 14px; }
.scenario-content p { font-size: 16px; color: var(--text-muted); line-height: 1.75; margin-bottom: 20px; }
.check-list { margin-bottom: 24px; }
.check-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 6px 0;
  font-size: 15px;
  color: var(--text);
}
.check-list li i { color: var(--accent); font-size: 14px; margin-top: 5px; flex-shrink: 0; }
.scenario-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-weight: 600;
  font-size: 15px;
  transition: var(--transition);
}
.scenario-link:hover { color: var(--accent-dark); gap: 10px; }

@media (max-width: 1023px) {
  .scenario-block { flex-direction: column; gap: 28px; }
  .scenario-block.reverse { flex-direction: column; }
}
@media (max-width: 767px) {
  .scenario-block { margin-bottom: 48px; }
}

/* ========== Social Proof ========== */
.proof-section {
  background: var(--primary);
  background-image: url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  position: relative;
}
.proof-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(32,92,107,0.88);
}
.proof-section .container { position: relative; z-index: 1; }
.proof-section h2 { color: #fff; }
.proof-section .section-label { background: rgba(255,255,255,0.12); color: #fff; }
.proof-stats {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin-top: 40px;
  flex-wrap: wrap;
}
.stat-item { text-align: center; padding: 20px 28px; }
.stat-number { font-family: var(--font-serif); font-size: 56px; font-weight: 700; color: var(--accent); line-height: 1; }
.stat-label { color: rgba(255,255,255,0.8); font-size: 14px; margin-top: 8px; }
.proof-logos {
  margin-top: 56px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
}
.logo-placeholder {
  width: 150px;
  height: 64px;
  border: 1px dashed rgba(255,255,255,0.3);
  border-radius: var(--radius-card);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: rgba(255,255,255,0.4);
  transition: var(--transition);
  cursor: pointer;
}
.logo-placeholder:hover { border-color: var(--accent); color: var(--accent); background: rgba(255,255,255,0.05); }

/* ========== News / CMS ========== */
.news-section { background: #fff; }
.news-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 40px;
  flex-wrap: wrap;
  gap: 16px;
}
.news-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.news-link:hover { color: var(--accent-dark); gap: 10px; }

.cms-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.cms-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.cms-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: rgba(32,92,107,0.2); }
.cms-card-media { aspect-ratio: 16/9; overflow: hidden; background: var(--primary-light); position: relative; }
.cms-card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--transition); }
.cms-card:hover .cms-card-media img { transform: scale(1.05); }
.cms-card-media .badge { position: absolute; top: 12px; left: 12px; }
.cms-card-body { padding: 20px; }
.cms-card-body h3 { font-size: 18px; line-height: 1.4; margin-bottom: 8px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.cms-card-body p { font-size: 14px; line-height: 1.6; color: var(--text-muted); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 12px; }
.cms-card-meta { display: flex; justify-content: space-between; align-items: center; font-size: 13px; color: var(--text-muted); }
.cms-card-meta a { color: var(--primary); font-weight: 600; }
.cms-card-meta a:hover { color: var(--accent-dark); }

.empty-state {
  grid-column: 1 / -1;
  border: 2px dashed var(--border);
  border-radius: var(--radius-card);
  padding: 60px 24px;
  text-align: center;
  color: var(--text-muted);
  font-size: 15px;
  background: #fafcfd;
}

@media (max-width: 1023px) {
  .cms-list { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 520px) {
  .cms-list { grid-template-columns: 1fr; }
}

/* ========== FAQ ========== */
.faq-section { background: var(--page-bg); }
.accordion { max-width: 800px; margin: 0 auto; }
.accordion-item { border-bottom: 1px solid var(--border); background: #fff; border-radius: 8px; margin-bottom: 10px; overflow: hidden; transition: var(--transition); }
.accordion-item:last-child { margin-bottom: 0; }
.accordion-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  transition: var(--transition);
}
.accordion-header:hover { background: var(--primary-light); }
.accordion-icon {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 600;
  transition: transform var(--transition);
  flex-shrink: 0;
}
.accordion-item.active .accordion-icon { transform: rotate(45deg); background: var(--accent); color: #fff; }
.accordion-content {
  display: none;
  padding: 0 24px 18px;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.75;
}
.accordion-item.active .accordion-content { display: block; }

/* ========== CTA Section ========== */
.cta-section {
  background: var(--primary);
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  position: relative;
  text-align: center;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(23,74,86,0.5);
}
.cta-inner { position: relative; z-index: 1; max-width: 680px; margin: 0 auto; }
.cta-inner h2 { color: #fff; font-size: 34px; margin-bottom: 16px; }
.cta-inner p { color: rgba(255,255,255,0.8); font-size: 16px; margin-bottom: 32px; line-height: 1.75; }
.cta-actions { display: flex; justify-content: center; align-items: center; gap: 20px; flex-wrap: wrap; }
.cta-phone { color: rgba(255,255,255,0.9); font-size: 16px; font-weight: 600; }
.cta-phone i { color: var(--accent); margin-right: 6px; }
.cta-phone:hover { color: #fff; }
@media (max-width: 767px) {
  .cta-inner h2 { font-size: 26px; }
}

/* ========== Footer ========== */
.site-footer { background: #EDF2F4; color: var(--text); padding-top: 64px; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.4fr;
  gap: 40px;
  padding-bottom: 40px;
}
.footer-brand .nav-logo { margin-bottom: 12px; }
.footer-brand .nav-logo-text { color: var(--text); }
.footer-brand .nav-logo-sub { color: var(--text-muted); }
.footer-brand p { font-size: 14px; color: var(--text-muted); line-height: 1.75; max-width: 280px; }
.footer-col h4 { font-size: 16px; margin-bottom: 18px; font-weight: 700; font-family: var(--font-serif); }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { font-size: 14px; color: var(--text-muted); transition: var(--transition); }
.footer-col ul li a:hover { color: var(--primary); padding-left: 4px; }
.footer-contact li { display: flex; align-items: flex-start; gap: 10px; font-size: 14px; color: var(--text-muted); margin-bottom: 10px; }
.footer-contact li i { color: var(--primary); margin-top: 4px; width: 16px; text-align: center; }
.footer-bottom {
  background: #F6F8FA;
  border-top: 1px solid var(--border);
  padding: 20px 0;
}
.footer-bottom .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 14px;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 10px;
}
.footer-icp { font-size: 13px; color: var(--text-muted); }

@media (max-width: 1023px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 520px) {
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom .container { flex-direction: column; text-align: center; }
}

/* ========== Bottom Conversion Bar ========== */
.bottom-conversion {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 64px;
  background: #fff;
  box-shadow: 0 -2px 12px rgba(0,0,0,0.08);
  z-index: 992;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  transition: transform 0.3s ease;
}
.bottom-conversion .convert-text { font-size: 15px; font-weight: 600; color: var(--text); }
.bottom-conversion .convert-text span { color: var(--accent); }
.bottom-conversion .convert-cta {
  background: var(--accent);
  color: #fff;
  padding: 8px 22px;
  border-radius: var(--radius-btn);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}
.bottom-conversion .convert-cta:hover { background: var(--accent-dark); transform: translateY(-2px); }
.convert-close {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 14px;
  cursor: pointer;
  padding: 6px;
  opacity: 0.8;
  transition: var(--transition);
}
.convert-close:hover { opacity: 1; color: var(--primary); }
@media (max-width: 767px) {
  .bottom-conversion { padding: 0 16px 0 20px; }
  .bottom-conversion .convert-text { font-size: 13px; }
  .bottom-conversion .convert-text .hide-mobile { display: none; }
  .bottom-conversion .convert-cta { padding: 6px 16px; font-size: 13px; }
}

/* ========== Responsive Header ========== */
@media (max-width: 1023px) {
  .nav-links-wrap { display: none; }
  .nav-toggle { display: flex; }
}

/* ========== Utility ========== */
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }
.mt-5 { margin-top: 48px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }

/* roulang page: category1 */
:root{
  --primary:#205C6B;
  --primary-dark:#174A56;
  --primary-light:#E8F0F2;
  --accent:#D99A4E;
  --accent-dark:#C4873A;
  --page-bg:#F6F8FA;
  --card-bg:#FFFFFF;
  --text:#1F2D3D;
  --text-secondary:#5B6B7B;
  --border:#E3E9EE;
  --radius:12px;
  --radius-btn:8px;
  --shadow:0 2px 12px rgba(32,92,107,0.08);
  --shadow-hover:0 12px 24px rgba(32,92,107,0.12);
  --transition:all 0.25s ease;
  --nav-h:72px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;font-size:16px;line-height:1.75;color:var(--text);background:var(--page-bg);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block;height:auto}
a{color:var(--primary);text-decoration:none;transition:var(--transition)}
a:hover{color:var(--primary-dark)}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
input{font-family:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
@media(max-width:767px){.section{padding:56px 0}}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:12px 32px;border-radius:var(--radius-btn);font-weight:600;font-size:16px;line-height:1;transition:var(--transition);white-space:nowrap}
.btn-accent{background:var(--accent);color:#1F2D3D}
.btn-accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px)}
.btn-outline{border:2px solid rgba(255,255,255,0.9);color:#fff;background:transparent}
.btn-outline:hover{background:rgba(255,255,255,0.15);border-color:#fff;color:#fff;transform:translateY(-2px)}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px)}

/* Section Tag */
.section-tag{display:inline-block;padding:6px 18px;border-radius:999px;background:var(--primary-light);color:var(--primary);font-size:12px;font-weight:600;letter-spacing:1px;text-transform:uppercase;margin-bottom:16px}
.section-title{font-family:'Noto Serif SC',serif;font-size:34px;line-height:1.3;font-weight:700;color:var(--text);margin-bottom:16px}
.section-desc{font-size:16px;color:var(--text-secondary);max-width:800px;margin:0 auto}
.section-head{text-align:center;margin-bottom:56px}
@media(max-width:767px){.section-title{font-size:26px}.section-head{margin-bottom:36px}}

/* Header Nav */
.site-header{position:fixed;top:0;left:0;width:100%;height:var(--nav-h);z-index:1000;background:rgba(255,255,255,0.15);backdrop-filter:blur(18px) saturate(160%);-webkit-backdrop-filter:blur(18px) saturate(160%);border-bottom:1px solid rgba(255,255,255,0.25);transition:background 0.3s ease,box-shadow 0.3s ease,border-color 0.3s ease}
.site-header.scrolled{background:rgba(255,255,255,0.95);backdrop-filter:none;border-bottom:1px solid var(--border);box-shadow:var(--shadow)}
.nav-container{display:flex;align-items:center;justify-content:space-between;height:100%;max-width:1200px;margin:0 auto;padding:0 24px;gap:16px}
.nav-logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-logo-mark{width:36px;height:36px;flex-shrink:0}
.nav-logo-text{font-family:'Noto Serif SC',serif;font-size:20px;font-weight:700;color:#fff;line-height:1.2;display:flex;flex-direction:column;transition:color 0.3s ease}
.nav-logo-sub{font-size:10px;font-weight:400;letter-spacing:2px;color:rgba(255,255,255,0.8);line-height:1;margin-top:2px;transition:color 0.3s ease}
.site-header.scrolled .nav-logo-text{color:var(--text)}
.site-header.scrolled .nav-logo-sub{color:var(--text-secondary)}
.nav-links-wrap{display:flex;align-items:center}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{display:inline-block;padding:8px 16px;font-size:15px;font-weight:500;color:rgba(255,255,255,0.9);border-radius:6px;position:relative;transition:color 0.3s ease,background 0.3s ease}
.site-header.scrolled .nav-links a{color:var(--text)}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,0.12)}
.site-header.scrolled .nav-links a:hover{color:var(--primary);background:var(--primary-light)}
.nav-links a.active{color:#fff}
.site-header.scrolled .nav-links a.active{color:var(--primary)}
.nav-links a.active::after{content:'';position:absolute;left:16px;right:16px;bottom:2px;height:2px;background:var(--accent);border-radius:2px}
.nav-right{display:flex;align-items:center;gap:12px;flex-shrink:0}
.nav-search{width:38px;height:38px;display:flex;align-items:center;justify-content:center;border-radius:50%;color:rgba(255,255,255,0.9);cursor:pointer;transition:var(--transition)}
.site-header.scrolled .nav-search{color:var(--text)}
.nav-search:hover{background:rgba(255,255,255,0.15)}
.site-header.scrolled .nav-search:hover{background:var(--primary-light);color:var(--primary)}
.nav-cta{display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:0 24px;border-radius:8px;background:var(--accent);color:#1F2D3D;font-size:14px;font-weight:600;transition:var(--transition)}
.nav-cta:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px)}
.nav-toggle{display:none;width:40px;height:40px;flex-direction:column;align-items:center;justify-content:center;gap:5px;border-radius:8px}
.nav-toggle span{display:block;width:20px;height:2px;background:rgba(255,255,255,0.9);border-radius:2px;transition:var(--transition)}
.site-header.scrolled .nav-toggle span{background:var(--text)}
.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)}
@media(max-width:1023px){
  .nav-links-wrap{position:fixed;top:var(--nav-h);left:0;width:100%;background:#fff;box-shadow:0 12px 24px rgba(0,0,0,0.08);flex-direction:column;padding:16px 24px;display:none;border-bottom:1px solid var(--border)}
  .nav-links-wrap.open{display:block}
  .nav-links{flex-direction:column;align-items:stretch;gap:0}
  .nav-links a{padding:12px 16px;color:var(--text);font-size:16px;border-radius:8px}
  .nav-links a:hover{background:var(--primary-light);color:var(--primary)}
  .nav-links a.active::after{display:none}
  .nav-toggle{display:flex}
  .nav-cta{display:none}
}

/* Page Hero */
.page-hero{height:240px;background-color:var(--primary);background-image:linear-gradient(rgba(23,74,86,0.45),rgba(23,74,86,0.45)),url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;display:flex;align-items:center;margin-top:var(--nav-h);position:relative}
.page-hero .container{position:relative;z-index:2}
.breadcrumb{font-size:14px;color:rgba(255,255,255,0.85);margin-bottom:12px}
.breadcrumb a{color:rgba(255,255,255,0.85)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{margin:0 8px;color:rgba(255,255,255,0.6)}
.breadcrumb .current{color:#fff}
.page-hero h1{font-family:'Noto Serif SC',serif;font-size:36px;font-weight:700;color:#fff;line-height:1.3;margin-bottom:8px}
.page-hero .page-hero-desc{font-size:16px;color:rgba(255,255,255,0.85);max-width:640px}
@media(max-width:767px){.page-hero{height:200px}.page-hero h1{font-size:28px}.page-hero .page-hero-desc{font-size:14px}}

/* Intro Section */
.intro-section{background:#fff;padding:96px 0}
.intro-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.intro-text .section-tag{margin-bottom:12px}
.intro-text h2{font-family:'Noto Serif SC',serif;font-size:34px;line-height:1.3;font-weight:700;color:var(--text);margin-bottom:24px}
.intro-text p{font-size:16px;color:var(--text-secondary);line-height:1.75;margin-bottom:16px}
.intro-media img{width:100%;height:380px;object-fit:cover;border-radius:12px;box-shadow:var(--shadow)}
.intro-media .media-frame{position:relative}
.intro-media .media-frame::after{content:'';position:absolute;inset:0;border-radius:12px;box-shadow:inset 0 1px 3px rgba(0,0,0,0.06)}
@media(max-width:767px){.intro-grid{grid-template-columns:1fr;gap:36px}.intro-media img{height:260px}.intro-text h2{font-size:26px}}

/* Features Section */
.features-section{background:var(--page-bg);padding:96px 0}
.features-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.feature-card{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);padding:40px 36px;box-shadow:var(--shadow);transition:var(--transition);position:relative;overflow:hidden}
.feature-card::before{content:'';position:absolute;top:0;left:0;width:100%;height:3px;background:var(--accent);opacity:0;transition:var(--transition)}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.feature-card:hover::before{opacity:1}
.feature-icon{width:48px;height:48px;border-radius:12px;background:var(--primary-light);display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:20px;margin-bottom:20px;transition:var(--transition)}
.feature-card:hover .feature-icon{background:var(--primary);color:#fff}
.feature-card h3{font-family:'Noto Serif SC',serif;font-size:22px;font-weight:600;color:var(--text);margin-bottom:12px}
.feature-card p{font-size:15px;color:var(--text-secondary);line-height:1.75}
@media(max-width:767px){.features-grid{grid-template-columns:1fr;gap:16px}.feature-card{padding:28px 24px}}

/* FAQ Section */
.faq-section{background:#fff;padding:96px 0}
.faq-list{max-width:860px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--border);transition:var(--transition)}
.faq-item:last-child{border-bottom:none}
.faq-question{display:flex;align-items:center;justify-content:space-between;width:100%;padding:24px 0;font-size:16px;font-weight:600;color:var(--text);text-align:left;transition:var(--transition)}
.faq-question:hover{color:var(--primary)}
.faq-icon{display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:6px;background:var(--primary-light);color:var(--primary);font-size:18px;font-weight:400;transition:var(--transition);flex-shrink:0;margin-left:16px}
.faq-item.active .faq-icon{transform:rotate(45deg);background:var(--primary);color:#fff}
.faq-answer{max-height:0;overflow:hidden;transition:max-height 0.4s ease}
.faq-answer p{padding:0 0 24px;font-size:14px;color:var(--text-secondary);line-height:1.75}
@media(max-width:767px){.faq-question{font-size:15px;padding:20px 0}}

/* CTA Section */
.cta-section{background-color:var(--primary);background-image:linear-gradient(rgba(23,74,86,0.7),rgba(23,74,86,0.7)),url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center;padding:96px 0;text-align:center;position:relative}
.cta-section .container{max-width:800px}
.cta-section h2{font-family:'Noto Serif SC',serif;font-size:36px;font-weight:700;color:#fff;margin-bottom:16px;line-height:1.3}
.cta-section p{font-size:16px;color:rgba(255,255,255,0.8);margin-bottom:32px;line-height:1.75}
.cta-actions{display:flex;align-items:center;justify-content:center;gap:16px;flex-wrap:wrap}
.cta-phone{display:inline-flex;align-items:center;gap:8px;color:rgba(255,255,255,0.9);font-size:15px;margin-left:8px}
.cta-phone i{color:var(--accent)}
@media(max-width:767px){.cta-section{padding:64px 0}.cta-section h2{font-size:28px}.cta-phone{display:block;margin-left:0;margin-top:16px}}

/* Footer */
.site-footer{background:#EDF2F4;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:48px;padding:72px 0 48px}
.footer-brand .nav-logo{color:var(--text)}
.footer-brand .nav-logo-text{color:var(--text)}
.footer-brand .nav-logo-sub{color:var(--text-secondary)}
.footer-brand p{font-size:14px;color:var(--text-secondary);line-height:1.75;margin-top:16px;max-width:280px}
.footer-col h4{font-size:16px;font-weight:600;color:var(--text);margin-bottom:20px;position:relative;padding-bottom:12px}
.footer-col h4::after{content:'';position:absolute;left:0;bottom:0;width:24px;height:2px;background:var(--accent);border-radius:2px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{font-size:14px;color:var(--text-secondary);transition:var(--transition)}
.footer-col ul li a:hover{color:var(--primary);padding-left:4px}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--text-secondary);line-height:1.6}
.footer-contact li i{color:var(--primary);margin-top:4px;width:16px;text-align:center;flex-shrink:0}
.footer-bottom{background:#F6F8FA;padding:20px 0;border-top:1px solid var(--border)}
.footer-bottom .container{display:flex;justify-content:space-between;align-items:center}
.footer-bottom span{font-size:14px;color:var(--text-secondary)}
.footer-icp{font-size:12px}
@media(max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px}}
@media(max-width:767px){.footer-grid{grid-template-columns:1fr;gap:28px;padding:48px 0 32px}.footer-bottom .container{flex-direction:column;gap:8px;text-align:center}}

body{padding-top:0}
main{display:block}

/* roulang page: article */
:root {
  --primary: #205C6B;
  --primary-dark: #174A56;
  --primary-light: #E8F0F2;
  --accent: #D99A4E;
  --accent-dark: #C4873A;
  --page-bg: #F6F8FA;
  --card: #FFFFFF;
  --text: #1F2D3D;
  --muted: #5B6B7B;
  --border: #E3E9EE;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 2px 12px rgba(32,92,107,0.08);
  --shadow-lg: 0 12px 24px rgba(32,92,107,0.12);
  --transition: 0.25s ease;
  --font-serif: 'Noto Serif SC', serif;
  --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--page-bg);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  color: var(--text);
  margin: 0 0 0.5em;
  font-weight: 700;
}

p {
  margin: 0 0 1em;
}

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

a:hover {
  color: var(--primary-dark);
}

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

ul, ol {
  margin: 0 0 1em;
  padding-left: 1.25em;
}

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

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

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

.grid-container {
  padding-left: 24px;
  padding-right: 24px;
}

/* ===== Header / Nav ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 72px;
  z-index: 1000;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border-bottom: 1px solid rgba(255,255,255,0.25);
  transition: background var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.site-header .nav-links a,
.site-header .nav-logo-text,
.site-header .nav-search {
  color: #fff;
}

.site-header.scrolled {
  background: rgba(255,255,255,0.95);
  box-shadow: var(--shadow);
  border-bottom-color: var(--border);
}

.site-header.scrolled .nav-links a,
.site-header.scrolled .nav-logo-text,
.site-header.scrolled .nav-search {
  color: var(--text);
}

body.article-page .site-header {
  background: rgba(255,255,255,0.95);
  border-bottom-color: var(--border);
}

body.article-page .site-header .nav-links a,
body.article-page .site-header .nav-logo-text,
body.article-page .site-header .nav-search {
  color: var(--text);
}

body.article-page .site-header.scrolled {
  box-shadow: var(--shadow);
}

.nav-container {
  max-width: 1200px;
  height: 100%;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.nav-logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  text-decoration: none;
}

.nav-logo-mark {
  width: 40px;
  height: 40px;
  display: block;
  flex-shrink: 0;
}

.nav-logo-text {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  line-height: 1;
  white-space: nowrap;
}

.nav-logo-sub {
  display: block;
  font-family: var(--font-sans);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--muted);
  margin-top: 3px;
}

.nav-links-wrap {
  flex: 1;
  display: flex;
  justify-content: center;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  font-size: 15px;
  font-weight: 500;
  position: relative;
  padding: 6px 0;
  white-space: nowrap;
  text-decoration: none;
  transition: color var(--transition);
}

.nav-links a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--transition);
  border-radius: 2px;
}

.nav-links a:hover::after,
.nav-links a.active::after {
  transform: scaleX(1);
}

.nav-links a.active {
  color: var(--primary);
  font-weight: 600;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 14px;
}

.nav-search {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  font-size: 15px;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

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

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 42px;
  padding: 0 24px;
  background: var(--primary);
  color: #fff;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-decoration: none;
  transition: background var(--transition), transform var(--transition), color var(--transition);
}

.nav-cta:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-2px);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  padding: 8px;
  border-radius: var(--radius-sm);
  background: var(--primary-light);
  transition: background var(--transition);
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background: var(--primary);
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ===== Article Head ===== */
.article-head {
  padding: 144px 0 40px;
  background: var(--page-bg);
  border-bottom: 1px solid var(--border);
}

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 20px;
}

.breadcrumb a {
  color: var(--muted);
  text-decoration: none;
  transition: color var(--transition);
}

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

.breadcrumb .bc-sep {
  color: #B0BDC6;
  font-size: 11px;
}

.breadcrumb .bc-cat {
  color: var(--primary);
  font-weight: 500;
}

.breadcrumb .bc-current {
  color: var(--text);
  font-weight: 600;
  max-width: 260px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.article-h1 {
  font-family: var(--font-serif);
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.3;
  margin: 0 0 14px;
  font-weight: 700;
}

.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
  font-size: 14px;
  color: var(--muted);
}

.article-meta .meta-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.article-meta .meta-item i {
  color: var(--accent);
  font-size: 14px;
}

/* ===== Article Body ===== */
.article-wrap {
  padding: 48px 0 72px;
}

.article-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 48px 56px;
  margin-bottom: 40px;
}

.article-cover-image {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--radius);
  margin-bottom: 32px;
}

.article-body {
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  max-width: 860px;
}

.article-body > *:first-child {
  margin-top: 0;
}

.article-body p {
  margin-bottom: 1.6em;
}

.article-body h3 {
  font-family: var(--font-serif);
  font-size: 24px;
  line-height: 1.4;
  margin: 1.6em 0 0.7em;
  font-weight: 700;
  padding-top: 0.4em;
}

.article-body h4 {
  font-size: 18px;
  line-height: 1.5;
  margin: 1.4em 0 0.6em;
  font-weight: 600;
}

.article-body ul,
.article-body ol {
  padding-left: 1.4em;
  margin-bottom: 1.6em;
}

.article-body li {
  margin-bottom: 0.4em;
}

.article-body blockquote {
  border-left: 4px solid var(--accent);
  background: var(--primary-light);
  padding: 18px 24px;
  margin: 1.6em 0;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--muted);
}

.article-body blockquote p {
  margin-bottom: 0;
}

.article-body img {
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  margin: 1.6em 0;
}

.article-body figcaption {
  text-align: center;
  font-size: 12px;
  color: var(--muted);
  margin-top: -1.2em;
  margin-bottom: 1.6em;
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.6em 0;
  display: block;
  overflow-x: auto;
}

.article-body table thead {
  background: var(--primary-light);
}

.article-body th,
.article-body td {
  border: 1px solid var(--border);
  padding: 12px 16px;
  text-align: left;
}

.article-body th {
  font-weight: 600;
  color: var(--primary-dark);
}

.article-body a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.article-body a:hover {
  color: var(--accent-dark);
}

/* ===== Not Found ===== */
.article-not-found {
  text-align: center;
  padding: 80px 24px;
}

.not-found-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 24px;
  border-radius: 50%;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  color: var(--primary);
}

.article-not-found h2 {
  font-family: var(--font-serif);
  font-size: 28px;
  margin-bottom: 12px;
}

.article-not-found p {
  color: var(--muted);
  margin-bottom: 28px;
}

/* ===== Tags ===== */
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 48px;
}

.article-tags .tag {
  display: inline-block;
  padding: 6px 18px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  transition: background var(--transition), color var(--transition);
}

.article-tags .tag a {
  color: inherit;
  text-decoration: none;
}

.article-tags .tag:hover {
  background: var(--primary);
  color: #fff;
}

/* ===== Related ===== */
.related-section {
  margin-bottom: 32px;
}

.related-section .section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 28px;
}

.related-section .section-title {
  font-family: var(--font-serif);
  font-size: 28px;
  margin: 0;
}

.related-section .section-more {
  font-size: 14px;
  font-weight: 500;
  color: var(--muted);
  text-decoration: none;
  transition: color var(--transition);
}

.related-section .section-more:hover {
  color: var(--primary);
}

.related-section .section-more i {
  transition: transform var(--transition);
}

.related-section .section-more:hover i {
  transform: translateX(4px);
}

.cms-related-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  list-style: none;
  padding: 0;
  margin: 0;
}

.cms-related-list li {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 140px;
}

.cms-related-list li:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(32,92,107,0.2);
}

.cms-related-list .related-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 8px;
  display: block;
}

.cms-related-list .related-date {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--muted);
}

.cms-related-list .related-link {
  display: inline-block;
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
  margin-top: 12px;
}

.related-empty {
  grid-column: 1 / -1;
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 40px;
  text-align: center;
  color: var(--muted);
  font-size: 14px;
}

/* ===== Back Link ===== */
.back-link-wrap {
  margin-top: 12px;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--muted);
  padding: 10px 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--card);
  text-decoration: none;
  transition: all var(--transition);
}

.back-link:hover {
  color: var(--primary);
  border-color: var(--primary);
  transform: translateX(-4px);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 12px 32px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: all var(--transition);
  gap: 8px;
}

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

.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-2px);
}

.btn-accent {
  background: var(--accent);
  color: var(--text);
}

.btn-accent:hover {
  background: var(--accent-dark);
  color: #fff;
  transform: translateY(-2px);
}

.btn-ghost-white {
  border: 2px solid rgba(255,255,255,0.7);
  color: #fff;
  background: transparent;
}

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

/* ===== CTA Section ===== */
.cta-section {
  padding: 96px 24px;
  text-align: center;
  color: #fff;
  background-color: var(--primary-dark);
  background-image: linear-gradient(rgba(23,74,86,0.85), rgba(23,74,86,0.92)), url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
}

.cta-section h2 {
  font-family: var(--font-serif);
  font-size: 34px;
  color: #fff;
  line-height: 1.3;
  margin-bottom: 16px;
}

.cta-section p {
  color: rgba(255,255,255,0.85);
  font-size: 16px;
  max-width: 640px;
  margin: 0 auto 40px;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

/* ===== Footer ===== */
.site-footer {
  background: #EDF2F4;
  border-top: 1px solid var(--border);
  padding: 72px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.4fr;
  gap: 48px;
  margin-bottom: 56px;
}

.footer-brand p {
  font-size: 14px;
  color: var(--muted);
  margin-top: 16px;
  max-width: 320px;
  line-height: 1.7;
}

.footer-col h4 {
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 20px;
  color: var(--text);
}

.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

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

.footer-col ul li a {
  font-size: 14px;
  color: var(--muted);
  text-decoration: none;
  transition: color var(--transition);
}

.footer-col ul li a:hover {
  color: var(--primary);
}

.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--muted);
  line-height: 1.6;
}

.footer-contact i {
  color: var(--primary);
  margin-top: 4px;
  width: 14px;
  text-align: center;
}

.footer-bottom {
  background: var(--page-bg);
  border-top: 1px solid var(--border);
  padding: 20px 0;
}

.footer-bottom .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-bottom span {
  font-size: 13px;
  color: var(--muted);
}

.footer-bottom .footer-icp {
  font-size: 13px;
  color: var(--muted);
}

/* ===== Responsive ===== */
@media (max-width: 1023px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }

  .nav-links {
    gap: 20px;
  }

  .article-card {
    padding: 36px 32px;
  }
}

@media (max-width: 767px) {
  .nav-toggle {
    display: flex;
  }

  .nav-search {
    display: none;
  }

  .nav-cta {
    display: none;
  }

  .nav-links-wrap {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    flex: none;
    background: #fff;
    box-shadow: var(--shadow-lg);
    border-bottom: 1px solid var(--border);
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    padding: 0 24px;
    transition: max-height 0.35s ease, opacity 0.25s ease, padding 0.25s ease;
  }

  .nav-links-wrap.nav-links-open {
    max-height: 400px;
    opacity: 1;
    padding: 16px 24px 24px;
  }

  .nav-links {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
  }

  .nav-links a {
    display: block;
    width: 100%;
    padding: 12px 0;
    font-size: 16px;
    border-bottom: 1px solid var(--border);
  }

  .nav-links a:last-child {
    border-bottom: none;
  }

  .nav-links a::after {
    display: none;
  }

  .nav-links a.active {
    color: var(--primary);
    font-weight: 600;
  }

  .article-head {
    padding: 112px 0 32px;
  }

  .article-card {
    padding: 24px 20px;
  }

  .article-meta {
    gap: 14px;
  }

  .article-h1 {
    font-size: 24px;
  }

  .cms-related-list {
    grid-template-columns: 1fr;
  }

  .cta-section {
    padding: 72px 20px;
  }

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

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

  .footer-bottom .container {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 520px) {
  .article-card {
    padding: 20px 16px;
  }

  .breadcrumb .bc-current {
    max-width: 160px;
  }

  .cta-actions .btn {
    width: 100%;
    padding: 12px 20px;
  }

  .footer-bottom .container {
    gap: 6px;
  }
}

/* roulang page: category2 */
:root{
  --primary:#205C6B;
  --primary-dark:#174A56;
  --primary-light:#E8F0F2;
  --accent:#D99A4E;
  --accent-dark:#C4873A;
  --page-bg:#F6F8FA;
  --card-bg:#FFFFFF;
  --text:#1F2D3D;
  --text-light:#5B6B7B;
  --border:#E3E9EE;
  --radius:12px;
  --shadow:0 2px 12px rgba(32,92,107,0.08);
  --shadow-hover:0 12px 24px rgba(32,92,107,0.12);
  --transition:0.25s ease;
}
*,*::before,*::after{
  box-sizing:border-box;
  margin:0;
  padding:0;
}
html{
  scroll-behavior:smooth;
}
body{
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--page-bg);
  -webkit-font-smoothing:antialiased;
}
img{
  max-width:100%;
  display:block;
}
a{
  text-decoration:none;
  color:var(--primary);
  transition:color 0.25s ease;
}
a:hover{
  color:var(--primary-dark);
}
ul,ol{
  list-style:none;
}
h1,h2,h3,h4{
  font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  color:var(--text);
  line-height:1.3;
}
h1{
  font-size:46px;
}
h2{
  font-size:34px;
}
h3{
  font-size:24px;
}
h4{
  font-size:16px;
}
.container{
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.section-tag{
  display:inline-block;
  font-size:12px;
  font-weight:600;
  letter-spacing:0.5px;
  color:var(--primary);
  background:var(--primary-light);
  padding:5px 16px;
  border-radius:999px;
  margin-bottom:14px;
}
.section-header{
  text-align:center;
  max-width:760px;
  margin:0 auto 48px;
}
.section-header h2{
  margin-bottom:12px;
}
.section-header p{
  color:var(--text-light);
  font-size:16px;
}
.section-white{
  background:#fff;
}
.section-gray{
  background:var(--page-bg);
}

/* ============ 按钮 ============ */
.btn{
  display:inline-block;
  font-size:15px;
  font-weight:600;
  padding:13px 32px;
  border-radius:8px;
  text-align:center;
  transition:transform 0.25s ease,background 0.25s ease,box-shadow 0.25s ease,color 0.25s ease;
  min-height:46px;
  border:none;
  cursor:pointer;
}
.btn-primary{
  background:var(--primary);
  color:#fff;
}
.btn-primary:hover{
  background:var(--primary-dark);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:var(--shadow-hover);
}
.btn-accent{
  background:var(--accent);
  color:#1F2D3D;
}
.btn-accent:hover{
  background:var(--accent-dark);
  color:#1F2D3D;
  transform:translateY(-2px);
  box-shadow:0 10px 20px rgba(217,154,78,0.25);
}
.btn-outline-white{
  border:2px solid rgba(255,255,255,0.85);
  color:#fff;
  background:transparent;
}
.btn-outline-white:hover{
  background:rgba(255,255,255,0.15);
  color:#fff;
  transform:translateY(-2px);
}

/* ============ 导航 ============ */
.site-header{
  position:fixed;
  top:0;
  left:0;
  width:100%;
  height:72px;
  z-index:1000;
  background:rgba(255,255,255,0.15);
  -webkit-backdrop-filter:blur(18px) saturate(160%);
  backdrop-filter:blur(18px) saturate(160%);
  border-bottom:1px solid rgba(255,255,255,0.25);
  transition:background 0.3s ease,box-shadow 0.3s ease,border-color 0.3s ease;
}
.site-header.scrolled{
  background:rgba(255,255,255,0.95);
  border-bottom-color:var(--border);
  box-shadow:0 2px 20px rgba(32,92,107,0.08);
}
.nav-container{
  max-width:1200px;
  margin:0 auto;
  height:72px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:0 24px;
}
.nav-logo{
  display:flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.nav-logo-mark{
  width:36px;
  height:36px;
  flex-shrink:0;
}
.nav-logo-text{
  font-family:"Noto Serif SC",serif;
  font-size:20px;
  font-weight:700;
  line-height:1.2;
  color:#fff;
  transition:color 0.3s ease;
}
.nav-logo-sub{
  display:block;
  font-family:"Helvetica Neue",Arial,sans-serif;
  font-size:9px;
  letter-spacing:1.5px;
  color:rgba(255,255,255,0.7);
  margin-top:2px;
  font-weight:400;
}
.site-header.scrolled .nav-logo-text{
  color:var(--text);
}
.site-header.scrolled .nav-logo-sub{
  color:var(--text-light);
}
.nav-links-wrap{
  display:flex;
  align-items:center;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:30px;
}
.nav-links a{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:rgba(255,255,255,0.92);
  padding:6px 2px;
  line-height:1.4;
}
.site-header.scrolled .nav-links a{
  color:var(--text);
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;
  bottom:-3px;
  width:0;
  height:2px;
  background:var(--accent);
  border-radius:2px;
  transition:width 0.3s ease;
}
.nav-links a:hover::after,
.nav-links a.active::after{
  width:100%;
}
.nav-links a.active{
  color:var(--accent);
}
.site-header.scrolled .nav-links a.active{
  color:var(--primary);
}
.nav-right{
  display:flex;
  align-items:center;
  gap:18px;
}
.nav-search{
  color:#fff;
  font-size:16px;
  cursor:pointer;
  width:36px;
  height:36px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:8px;
  transition:background 0.25s ease,color 0.25s ease;
}
.site-header.scrolled .nav-search{
  color:var(--text);
}
.nav-search:hover{
  background:rgba(255,255,255,0.15);
}
.site-header.scrolled .nav-search:hover{
  background:var(--primary-light);
}
.nav-cta{
  background:var(--primary);
  color:#fff;
  font-size:14px;
  font-weight:600;
  padding:10px 26px;
  border-radius:8px;
  transition:all 0.25s ease;
}
.nav-cta:hover{
  background:var(--primary-dark);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:var(--shadow-hover);
}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
  background:rgba(255,255,255,0.2);
  border:none;
  border-radius:8px;
  cursor:pointer;
  transition:background 0.25s ease;
}
.site-header.scrolled .nav-toggle{
  background:var(--primary-light);
}
.nav-toggle span{
  display:block;
  width:18px;
  height:2px;
  background:#fff;
  border-radius:2px;
  transition:background 0.25s ease;
}
.site-header.scrolled .nav-toggle span{
  background:var(--text);
}

/* ============ 页面横幅 ============ */
.page-hero{
  position:relative;
  min-height:260px;
  padding:120px 0 60px;
  display:flex;
  align-items:center;
  text-align:center;
  color:#fff;
  background-color:var(--primary-dark);
  background-image:linear-gradient(rgba(23,74,86,0.45),rgba(23,74,86,0.45)),url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:rgba(23,74,86,0.2);
}
.page-hero .container{
  position:relative;
  z-index:2;
  width:100%;
}
.breadcrumb{
  font-size:14px;
  color:rgba(255,255,255,0.85);
  margin-bottom:12px;
  letter-spacing:0.3px;
}
.breadcrumb a{
  color:rgba(255,255,255,0.85);
}
.breadcrumb a:hover{
  color:#fff;
}
.breadcrumb i{
  font-size:10px;
  margin:0 8px;
  color:rgba(255,255,255,0.6);
}
.page-hero h1{
  font-size:38px;
  color:#fff;
  margin-bottom:10px;
}
.page-hero .subtitle{
  font-size:16px;
  color:rgba(255,255,255,0.88);
  max-width:640px;
  margin:0 auto;
}

/* ============ 流程步骤 ============ */
.process-section{
  padding:96px 0;
  background:#fff;
}
.process-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:28px;
  margin-top:8px;
}
.process-step{
  position:relative;
  text-align:center;
  padding:28px 20px;
  background:var(--page-bg);
  border:1px solid var(--border);
  border-radius:12px;
  transition:transform 0.25s ease,box-shadow 0.25s ease;
}
.process-step:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
}
.process-step-num{
  width:54px;
  height:54px;
  margin:0 auto 18px;
  border-radius:50%;
  background:var(--primary);
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:20px;
  font-weight:700;
  font-family:"Helvetica Neue",Arial,sans-serif;
  box-shadow:0 6px 14px rgba(32,92,107,0.22);
}
.process-step h3{
  font-size:18px;
  margin-bottom:8px;
}
.process-step p{
  font-size:14px;
  color:var(--text-light);
}

/* ============ 图标列表服务 ============ */
.services-section{
  padding:96px 0;
  background:var(--page-bg);
}
.service-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.service-item{
  background:#fff;
  border:1px solid var(--border);
  border-radius:12px;
  padding:30px 26px;
  box-shadow:var(--shadow);
  transition:transform 0.25s ease,box-shadow 0.25s ease;
}
.service-item:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
}
.service-icon{
  width:48px;
  height:48px;
  border-radius:50%;
  background:var(--primary-light);
  color:var(--primary);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:20px;
  margin-bottom:18px;
}
.service-item h3{
  font-size:18px;
  margin-bottom:8px;
}
.service-item p{
  font-size:14px;
  color:var(--text-light);
  line-height:1.7;
}

/* ============ 数据条 ============ */
.stats-section{
  padding:80px 0;
  background-color:var(--primary);
  background-image:linear-gradient(rgba(23,74,86,0.88),rgba(23,74,86,0.88)),url('/assets/images/coverpic/cover-2.webp');
  background-size:cover;
  background-position:center;
  color:#fff;
  text-align:center;
}
.stats-section h2{
  color:#fff;
  margin-bottom:48px;
}
.stats-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:32px;
}
.stat-number{
  font-size:56px;
  font-weight:700;
  font-family:"Helvetica Neue",Arial,sans-serif;
  color:var(--accent);
  line-height:1.2;
}
.stat-label{
  font-size:14px;
  color:rgba(255,255,255,0.88);
  margin-top:9px;
}

/* ============ FAQ ============ */
.faq-section{
  padding:96px 0;
  background:#fff;
}
.faq-list{
  max-width:820px;
  margin:0 auto;
}
.faq-item{
  border-bottom:1px solid var(--border);
}
.faq-question{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:22px 0;
  cursor:pointer;
  font-family:"PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  font-weight:600;
  color:var(--text);
  transition:color 0.25s ease;
  line-height:1.5;
}
.faq-question:hover{
  color:var(--primary);
}
.faq-icon{
  width:28px;
  height:28px;
  border-radius:8px;
  background:var(--primary-light);
  position:relative;
  flex-shrink:0;
  margin-left:16px;
  transition:transform 0.25s ease,background 0.25s ease;
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  top:50%;
  left:50%;
  background:var(--primary);
  border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{
  width:12px;
  height:2px;
}
.faq-icon::after{
  width:2px;
  height:12px;
}
.faq-item.open .faq-icon{
  transform:rotate(45deg);
  background:var(--accent);
}
.faq-item.open .faq-icon::before,
.faq-item.open .faq-icon::after{
  background:#fff;
}
.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height 0.35s ease;
}
.faq-answer-inner{
  padding:0 0 22px;
  font-size:14px;
  line-height:1.8;
  color:var(--text-light);
}

/* ============ CTA ============ */
.cta-section{
  padding:88px 0;
  background-color:var(--primary);
  background-image:linear-gradient(rgba(23,74,86,0.65),rgba(23,74,86,0.65)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  text-align:center;
  color:#fff;
}
.cta-section h2{
  color:#fff;
  font-size:32px;
  margin-bottom:14px;
}
.cta-section p{
  font-size:16px;
  color:rgba(255,255,255,0.86);
  max-width:620px;
  margin:0 auto 34px;
}
.cta-phone{
  display:block;
  margin-top:22px;
  font-size:16px;
  color:rgba(255,255,255,0.9);
}
.cta-phone a{
  color:#fff;
  font-weight:600;
}
.cta-phone a:hover{
  color:var(--accent);
}

/* ============ 页脚 ============ */
.site-footer{
  background:#EDF2F4;
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.4fr;
  gap:48px;
  padding:64px 0 48px;
}
.site-footer .nav-logo-text{
  color:var(--text);
}
.site-footer .nav-logo-sub{
  color:var(--text-light);
}
.footer-brand p{
  font-size:14px;
  color:var(--text-light);
  line-height:1.8;
  margin-top:14px;
  max-width:340px;
}
.footer-col h4{
  font-family:"PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  font-weight:600;
  color:var(--text);
  margin-bottom:18px;
}
.footer-col ul li{
  margin-bottom:10px;
  font-size:14px;
}
.footer-col ul li a{
  color:var(--text-light);
}
.footer-col ul li a:hover{
  color:var(--primary);
}
.footer-contact li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  color:var(--text-light);
  line-height:1.6;
}
.footer-contact li i{
  color:var(--primary);
  margin-top:5px;
  width:16px;
  text-align:center;
  flex-shrink:0;
}
.footer-bottom{
  background:#F6F8FA;
  border-top:1px solid var(--border);
  padding:16px 0;
}
.footer-bottom .container{
  display:flex;
  justify-content:space-between;
  align-items:center;
  font-size:14px;
  color:var(--text-light);
}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .nav-links-wrap{
    display:none;
    position:fixed;
    top:72px;
    left:0;
    right:0;
    background:#fff;
    padding:8px 24px 16px;
    box-shadow:0 12px 30px rgba(32,92,107,0.14);
    border-top:1px solid var(--border);
    max-height:calc(100vh - 72px);
    overflow-y:auto;
  }
  .nav-links-wrap.open{
    display:block;
  }
  .nav-links{
    flex-direction:column;
    align-items:stretch;
    gap:0;
  }
  .nav-links a{
    color:var(--text);
    font-size:16px;
    line-height:50px;
    border-bottom:1px solid var(--border);
    padding:0;
  }
  .nav-links a::after{
    display:none;
  }
  .nav-links a.active{
    color:var(--primary);
  }
  .nav-toggle{
    display:flex;
  }
  .nav-right .nav-search{
    display:none;
  }
  .nav-right .nav-cta{
    display:none;
  }
  .process-grid{
    grid-template-columns:repeat(2,1fr);
  }
  .service-grid{
    grid-template-columns:repeat(2,1fr);
  }
  .stats-grid{
    grid-template-columns:repeat(2,1fr);
    gap:40px 24px;
  }
  .footer-grid{
    grid-template-columns:1fr 1fr;
    gap:40px;
  }
}
@media (max-width:767px){
  .container{
    padding:0 16px;
  }
  h1{
    font-size:32px;
  }
  h2{
    font-size:24px;
  }
  .page-hero{
    min-height:220px;
    padding:100px 0 48px;
  }
  .page-hero h1{
    font-size:28px;
  }
  .page-hero .subtitle{
    font-size:15px;
  }
  .process-section,
  .services-section,
  .faq-section,
  .cta-section{
    padding:56px 0;
  }
  .process-grid{
    grid-template-columns:1fr;
    gap:16px;
  }
  .service-grid{
    grid-template-columns:1fr;
    gap:16px;
  }
  .stats-grid{
    grid-template-columns:1fr;
    gap:36px;
  }
  .stat-number{
    font-size:44px;
  }
  .footer-grid{
    grid-template-columns:1fr;
    gap:36px;
    padding:48px 0 36px;
  }
  .footer-bottom .container{
    flex-direction:column;
    gap:6px;
    text-align:center;
  }
  .nav-logo-sub{
    display:none;
  }
}
@media (max-width:520px){
  .nav-logo-text{
    font-size:18px;
  }
  .nav-cta{
    padding:8px 20px;
    font-size:13px;
  }
  .section-header{
    margin-bottom:32px;
  }
  .service-item{
    padding:22px 18px;
  }
  .process-step{
    padding:22px 16px;
  }
}