/* roulang page: index */
:root {
  --brand: #1F4E44;
  --brand-dark: #174038;
  --deep: #102522;
  --copper: #B9935F;
  --copper-light: #C9A87C;
  --bg: #FAF8F5;
  --card: #FFFFFF;
  --text: #171B1A;
  --text-sub: #5F6F6A;
  --border: #E4E1DA;
  --border-light: #E6E2DA;
  --success: #2D8A4E;
  --error: #B53D2E;
  --r-lg: 20px;
  --r-md: 14px;
  --r-sm: 8px;
  --r-btn: 10px;
  --shadow-hover: 0 12px 30px rgba(20, 40, 35, 0.08);
  --transition: 180ms ease;
  --font-base: -apple-system, "Segoe UI", "Microsoft YaHei", "PingFang SC", "Noto Sans SC", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; overflow-x: hidden; }
body {
  font-family: var(--font-base);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 1rem;
  padding-top: 72px;
}
a { color: var(--brand); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--brand-dark); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { margin: 0; padding: 0; }
.container { max-width: 1180px; padding-left: 24px; padding-right: 24px; }
.section { padding: 96px 0; }
.section-head { margin-bottom: 48px; }
.section-head h2 {
  font-size: clamp(1.5rem, 2.4vw, 2.1rem);
  font-weight: 600;
  color: var(--text);
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}
.section-head p {
  color: var(--text-sub);
  font-size: 0.9375rem;
  max-width: 60ch;
  line-height: 1.6;
  margin: 0;
}
.section-head-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 36px;
}
.section-more {
  color: var(--brand);
  font-weight: 500;
  font-size: 0.9375rem;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: all var(--transition);
  white-space: nowrap;
}
.section-more:hover { color: var(--brand-dark); }
.section-more .arrow { transition: transform var(--transition); }
.section-more:hover .arrow { transform: translateX(4px); }
.btn {
  border-radius: var(--r-btn);
  font-weight: 500;
  padding: 0.75rem 1.75rem;
  font-size: 0.9375rem;
  border: 1px solid transparent;
  transition: all var(--transition);
}
.btn:focus, .btn:active:focus {
  box-shadow: 0 0 0 4px rgba(31, 78, 68, 0.12);
  outline: none;
}
.btn-brand { background: var(--brand); color: #fff; border: 1px solid var(--brand); }
.btn-brand:hover { background: var(--brand-dark); color: #fff; transform: translateY(-1px); }
.btn-brand:active { transform: translateY(1px); background: var(--deep); }
.btn-copper { background: var(--copper); color: var(--deep); border: 1px solid var(--copper); }
.btn-copper:hover { background: var(--copper-light); color: var(--deep); transform: translateY(-1px); }
.btn-copper:active { transform: translateY(1px); }
.btn-outline-brand { background: transparent; color: var(--brand); border: 1px solid var(--brand); }
.btn-outline-brand:hover { background: rgba(31, 78, 68, 0.05); color: var(--brand-dark); }
.btn-block { display: block; width: 100%; }

/* ========== Header / Nav ========== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1030;
  background: rgba(250, 248, 245, 0.88);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-light);
}
.site-header .navbar {
  min-height: 72px;
  padding: 0;
}
.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0;
  margin: 0;
}
.brand-mark {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--brand);
  position: relative;
  flex-shrink: 0;
}
.brand-mark::after {
  content: '';
  position: absolute;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--copper);
  top: 9px;
  left: 9px;
}
.brand-text {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--deep);
  letter-spacing: 0.02em;
}
.site-header .navbar-nav {
  gap: 8px;
  align-items: center;
}
.site-header .nav-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-sub);
  padding: 10px 16px;
  position: relative;
  transition: color var(--transition);
  letter-spacing: 0.02em;
}
.site-header .nav-link::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--copper);
  border-radius: 2px;
  transition: width var(--transition);
}
.site-header .nav-link:hover { color: var(--brand); }
.site-header .nav-link:hover::after { width: 18px; }
.site-header .nav-link.active { color: var(--brand); font-weight: 600; }
.site-header .nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 18px;
  height: 2px;
  background: var(--copper);
  border-radius: 2px;
}
.navbar-toggler {
  border: none;
  padding: 8px 4px;
  outline: none;
  box-shadow: none !important;
}
.navbar-toggler-icon {
  background-image: none;
  position: relative;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  display: inline-block;
  transition: all var(--transition);
}
.navbar-toggler-icon::before {
  content: '';
  position: absolute;
  top: -7px; left: 0;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all var(--transition);
}
.navbar-toggler-icon::after {
  content: '';
  position: absolute;
  top: 7px; left: 0;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all var(--transition);
}
.navbar-toggler[aria-expanded="true"] .navbar-toggler-icon {
  background: transparent;
}
.navbar-toggler[aria-expanded="true"] .navbar-toggler-icon::before {
  transform: translateY(7px) rotate(45deg);
}
.navbar-toggler[aria-expanded="true"] .navbar-toggler-icon::after {
  transform: translateY(-7px) rotate(-45deg);
}

/* ========== Hero ========== */
.hero {
  position: relative;
  padding: 96px 0 96px;
  background: linear-gradient(rgba(250, 248, 245, 0.9), rgba(250, 248, 245, 0.92)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  border-bottom: 1px solid var(--border-light);
}
.hero::before {
  content: '';
  position: absolute;
  top: -120px;
  left: -80px;
  width: 480px;
  height: 480px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(31, 78, 68, 0.06) 0%, transparent 70%);
  pointer-events: none;
}
.hero .container { position: relative; z-index: 1; }
.hero h1 {
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: var(--text);
  margin-bottom: 20px;
}
.hero h1 .highlight { color: var(--brand); }
.hero-sub {
  font-size: 1.0625rem;
  color: var(--text-sub);
  max-width: 34rem;
  line-height: 1.7;
  margin-bottom: 36px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.metric-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}
.metric-card {
  background: var(--card);
  border: 1px solid var(--border-light);
  border-radius: var(--r-md);
  padding: 24px 22px;
  transition: all var(--transition);
}
.metric-card:hover {
  border-color: rgba(31, 78, 68, 0.25);
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}
.metric-label {
  font-size: 0.8125rem;
  color: var(--text-sub);
  display: block;
  margin-bottom: 8px;
}
.metric-value {
  font-size: clamp(2rem, 3vw, 2.75rem);
  font-weight: 300;
  color: var(--brand);
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
  display: block;
  margin-bottom: 8px;
}
.metric-trend {
  font-size: 0.75rem;
  color: var(--text-sub);
  display: flex;
  align-items: center;
  gap: 4px;
}
.metric-trend.up { color: var(--success); }
.metric-trend .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--copper);
  display: inline-block;
}

/* ========== Services ========== */
.services { background: var(--card); border-top: 1px solid var(--border-light); border-bottom: 1px solid var(--border-light); }
.service-card {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  background: var(--card);
  border: 1px solid var(--border-light);
  border-radius: var(--r-md);
  padding: 28px 26px;
  height: 100%;
  transition: all var(--transition);
}
.service-card:hover {
  border-color: rgba(31, 78, 68, 0.3);
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}
.service-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--r-sm);
  background: rgba(31, 78, 68, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.service-icon svg { width: 26px; height: 26px; stroke: var(--brand); }
.service-body h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}
.service-body p {
  font-size: 0.875rem;
  color: var(--text-sub);
  line-height: 1.6;
  margin-bottom: 12px;
}
.service-more {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--brand);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: all var(--transition);
}
.service-more:hover { color: var(--brand-dark); gap: 7px; }

/* ========== Comparison ========== */
.comparison { background: var(--bg); }
.compare-card {
  border-radius: var(--r-lg);
  padding: 36px 36px 28px;
  height: 100%;
  border: 1px solid var(--border);
  background: var(--card);
  position: relative;
}
.compare-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 20px;
}
.compare-card ul { list-style: none; }
.compare-card li {
  padding: 10px 0 10px 30px;
  position: relative;
  font-size: 0.90625rem;
  line-height: 1.65;
  color: var(--text-sub);
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}
.compare-card li:last-child { border-bottom: none; }
.compare-card li::before {
  position: absolute;
  left: 0;
  top: 10px;
  font-weight: 700;
  font-size: 0.875rem;
}
.compare-card.compare-old { background: #F0EEEA; border-color: #E2DDD4; }
.compare-card.compare-old h3 { color: #8A8580; }
.compare-card.compare-old li { color: #8A8580; }
.compare-card.compare-old li::before { content: '×'; color: #B5ADA4; }
.compare-card.compare-new {
  background: var(--deep);
  border-color: var(--deep);
  overflow: hidden;
}
.compare-card.compare-new h3 { color: #E8EFEC; }
.compare-card.compare-new li { color: #A5B8B1; }
.compare-card.compare-new li::before { content: '✓'; color: var(--copper); }
.compare-badge {
  position: absolute;
  top: 22px;
  right: 22px;
  background: var(--copper);
  color: var(--deep);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 20px;
  letter-spacing: 0.03em;
}

/* ========== Latest News ========== */
.news-section { background: var(--card); border-top: 1px solid var(--border-light); border-bottom: 1px solid var(--border-light); }
.news-list { display: flex; flex-direction: column; }
.news-item {
  background: var(--card);
  border: 1px solid var(--border-light);
  border-radius: var(--r-md);
  margin-bottom: 14px;
  transition: all var(--transition);
  overflow: hidden;
}
.news-item:last-child { margin-bottom: 0; }
.news-item:hover {
  border-color: rgba(31, 78, 68, 0.3);
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}
.news-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 16px 18px;
  text-decoration: none;
  color: inherit;
  position: relative;
}
.news-inner::after {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--copper);
  transform: scaleY(0);
  transform-origin: center;
  transition: transform var(--transition);
}
.news-item:hover .news-inner::after { transform: scaleY(1); }
.news-thumb {
  width: 120px;
  height: 80px;
  border-radius: var(--r-sm);
  overflow: hidden;
  flex-shrink: 0;
  background: var(--border-light);
}
.news-thumb img { width: 100%; height: 100%; object-fit: cover; }
.news-content { flex: 1; min-width: 0; }
.news-content h4 {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.news-summary {
  font-size: 0.8125rem;
  color: var(--text-sub);
  line-height: 1.5;
  margin-bottom: 8px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.news-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 0.75rem;
  color: var(--text-sub);
}
.news-cate {
  background: rgba(31, 78, 68, 0.08);
  color: var(--brand);
  padding: 2px 10px;
  border-radius: 20px;
  font-size: 0.7rem;
  font-weight: 500;
}
.news-empty {
  background: #F2F0EC;
  border-radius: var(--r-md);
  padding: 48px 24px;
  text-align: center;
  color: var(--text-sub);
  font-size: 0.9375rem;
}

/* ========== FAQ ========== */
.faq-section { background: var(--bg); }
.faq-wrap { max-width: 720px; margin: 0 auto; }
.faq-item {
  background: var(--card);
  border: 1px solid var(--border-light);
  border-radius: 12px !important;
  margin-bottom: 12px;
  overflow: hidden;
}
.accordion-button {
  background: var(--card);
  color: var(--text);
  font-weight: 600;
  font-size: 0.9375rem;
  padding: 18px 22px;
  box-shadow: none;
  border-radius: 12px !important;
  line-height: 1.5;
}
.accordion-button:not(.collapsed) {
  background: transparent;
  color: var(--brand);
  box-shadow: none;
}
.accordion-button:focus {
  box-shadow: none;
  outline: 2px solid rgba(31, 78, 68, 0.12);
  outline-offset: -2px;
}
.accordion-button::after {
  background-image: none;
  content: '+';
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--brand);
  width: 24px;
  height: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transform: rotate(0deg);
  transition: transform var(--transition);
}
.accordion-button:not(.collapsed)::after {
  background-image: none;
  transform: rotate(45deg);
}
.accordion-body {
  padding: 0 22px 20px;
  color: var(--text-sub);
  font-size: 0.875rem;
  line-height: 1.7;
}
.faq-footer {
  text-align: center;
  margin-top: 36px;
}
.faq-footer p {
  color: var(--text-sub);
  font-size: 0.9375rem;
  margin-bottom: 16px;
}
.faq-footer .btn { min-width: 160px; }

/* ========== Contact Form ========== */
.contact-section { background: var(--card); border-top: 1px solid var(--border-light); }
.contact-card {
  background: var(--card);
  border: 1px solid var(--border-light);
  border-radius: 16px;
  padding: 40px;
  box-shadow: 0 4px 24px rgba(20, 40, 35, 0.04);
}
.contact-info-title h2 {
  font-size: clamp(1.5rem, 2.4vw, 2.1rem);
  font-weight: 600;
  margin-bottom: 14px;
}
.contact-info-title p {
  color: var(--text-sub);
  font-size: 0.9375rem;
  margin-bottom: 28px;
  line-height: 1.6;
}
.contact-info-list { display: flex; flex-direction: column; gap: 18px; }
.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}
.contact-info-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--r-sm);
  background: rgba(31, 78, 68, 0.07);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.contact-info-icon svg { width: 18px; height: 18px; stroke: var(--brand); }
.contact-info-item strong {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 2px;
}
.contact-info-item span {
  font-size: 0.8125rem;
  color: var(--text-sub);
}
.form-label {
  font-size: 0.8125rem;
  color: var(--text-sub);
  font-weight: 500;
  margin-bottom: 6px;
}
.form-control {
  border: 1px solid #D8D4CC;
  border-radius: var(--r-sm);
  padding: 0.875rem;
  height: 48px;
  font-size: 0.9375rem;
  color: var(--text);
  background: #FEFDFB;
  transition: border-color var(--transition), box-shadow var(--transition);
}
textarea.form-control { height: auto; min-height: 120px; resize: vertical; }
.form-control:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 4px rgba(31, 78, 68, 0.12);
  outline: none;
}
.form-privacy {
  font-size: 0.75rem;
  color: var(--text-sub);
  margin-top: 16px;
  margin-bottom: 0;
  line-height: 1.5;
}

/* ========== Footer ========== */
.site-footer {
  background: var(--deep);
  color: #C6D4CE;
  padding: 88px 0 0;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}
.footer-brand .brand-mark { background: #254E43; }
.footer-brand .brand-text { color: #E8EFEC; }
.footer-desc {
  font-size: 0.875rem;
  color: #9FB2AB;
  line-height: 1.7;
  margin-bottom: 24px;
  max-width: 30ch;
}
.footer-social {
  display: flex;
  gap: 12px;
}
.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: var(--r-sm);
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.04);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #9FB2AB;
  transition: all var(--transition);
}
.footer-social a:hover {
  color: var(--copper-light);
  border-color: rgba(201, 168, 124, 0.4);
  background: rgba(201, 168, 124, 0.08);
}
.footer-social svg { width: 16px; height: 16px; }
.footer-title {
  font-size: 0.8125rem;
  font-weight: 600;
  color: #E8EFEC;
  margin-bottom: 20px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer-links a {
  color: #9FB2AB;
  font-size: 0.875rem;
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--copper-light); }
.footer-contact-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.footer-contact-list li {
  display: flex;
  gap: 10px;
  font-size: 0.875rem;
  color: #9FB2AB;
}
.footer-contact-list svg {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
  margin-top: 4px;
  stroke: var(--copper);
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin-top: 64px;
  padding: 24px 0 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.8125rem;
  color: #7A918A;
}
.footer-bottom .footer-site-name { color: #9FB2AB; }

/* ========== Reveal animation ========== */
.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ========== Responsive ========== */
@media (max-width: 1199px) {
  .metric-grid { gap: 14px; }
}
@media (max-width: 991px) {
  body { padding-top: 60px; }
  .site-header .navbar { min-height: 60px; }
  .navbar-collapse {
    background: var(--card);
    border: 1px solid var(--border-light);
    border-radius: var(--r-md);
    padding: 20px;
    margin-top: 10px;
    box-shadow: var(--shadow-hover);
  }
  .site-header .navbar-nav { gap: 4px; align-items: flex-start; }
  .site-header .nav-link {
    font-size: 1.125rem;
    padding: 10px 12px;
    display: block;
    width: 100%;
  }
  .site-header .nav-link::after { display: none; }
  .site-header .nav-link.active::after { display: none; }
  .site-header .nav-cta { margin-top: 12px; display: block; text-align: center; }
  .hero { padding: 64px 0; }
  .hero h1 { font-size: clamp(2rem, 5vw, 2.6rem); }
  .metric-grid { margin-top: 40px; }
  .section { padding: 72px 0; }
  .contact-card { padding: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}
@media (max-width: 767px) {
  .container { padding-left: 16px; padding-right: 16px; }
  .section { padding: 56px 0; }
  .section-head { margin-bottom: 36px; }
  .section-head h2 { font-size: 1.5rem; }
  .hero { padding: 48px 0; }
  .hero h1 { font-size: 1.75rem; }
  .hero-sub { font-size: 1rem; }
  .metric-grid { gap: 12px; }
  .metric-card { padding: 18px 16px; }
  .metric-value { font-size: 1.75rem; }
  .service-card { padding: 22px 18px; gap: 16px; flex-direction: column; }
  .service-icon { width: 44px; height: 44px; }
  .compare-card { padding: 24px 20px; }
  .compare-badge { top: 16px; right: 16px; }
  .news-inner { gap: 14px; padding: 12px; }
  .news-thumb { width: 80px; height: 64px; }
  .news-content h4 { font-size: 0.875rem; }
  .news-summary { display: none; }
  .contact-card { padding: 22px 18px; }
  .contact-info-list { margin-bottom: 28px; }
  .accordion-button { font-size: 0.875rem; padding: 16px 18px; }
  .accordion-body { padding: 0 18px 16px; }
  .footer-bottom { padding: 20px 0 24px; }
}
@media (max-width: 575px) {
  .hero-actions .btn { width: 100%; }
  .metric-grid { grid-template-columns: 1fr 1fr; }
  .metric-card { padding: 16px 14px; }
  .metric-label { font-size: 0.75rem; }
  .metric-value { font-size: 1.5rem; }
  .metric-trend { font-size: 0.6875rem; }
  .news-meta { gap: 10px; font-size: 0.6875rem; }
}

/* roulang page: article */
:root {
  --primary: #1F4E44;
  --primary-dark: #174038;
  --deep: #102522;
  --accent: #B9935F;
  --accent-light: #C9A87C;
  --bg: #FAF8F5;
  --surface: #FFFFFF;
  --text: #171B1A;
  --text-secondary: #5F6F6A;
  --border: #E4E1DA;
  --border-input: #D8D4CC;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --radius-btn: 10px;
  --shadow-hover: 0 12px 30px rgba(20,40,35,0.08);
  --transition: 180ms ease;
  --font-stack: -apple-system, "Segoe UI", "Microsoft YaHei", "PingFang SC", "Noto Sans SC", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-stack);
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a:hover {
  color: var(--accent);
}

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

.container {
  max-width: 1180px;
  padding-left: 24px;
  padding-right: 24px;
}

@media (max-width: 767.98px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
}

/* 通用覆盖 Bootstrap 默认样式 */
.btn {
  border-radius: var(--radius-btn);
  font-weight: 500;
  transition: all var(--transition);
}

.btn:focus,
.btn:focus-visible {
  box-shadow: 0 0 0 4px rgba(31,78,68,0.12);
  outline: none;
}

.btn-brand {
  background: var(--primary);
  color: #fff;
  border: 1px solid var(--primary);
  padding: 0.75rem 1.75rem;
}

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

.btn-brand:active {
  transform: translateY(1px);
}

.btn-outline-brand {
  background: transparent;
  color: var(--primary);
  border: 1px solid var(--primary);
  padding: 0.625rem 1.5rem;
}

.btn-outline-brand:hover {
  background: rgba(31,78,68,0.05);
  color: var(--primary);
  border-color: var(--primary);
}

/* ===== 导航栏 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1030;
  background: rgba(250,248,245,0.88);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid #E6E2DA;
}

.navbar {
  min-height: 72px;
  padding: 0;
}

.navbar-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 0;
  margin-right: 0;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text);
}

.navbar-brand:hover {
  color: var(--primary);
}

.brand-mark {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: var(--primary);
  display: inline-block;
  position: relative;
  flex-shrink: 0;
}

.brand-mark::after {
  content: "";
  position: absolute;
  inset: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.brand-text {
  font-weight: 600;
  font-size: 1.125rem;
  letter-spacing: 0.01em;
}

.navbar-nav {
  gap: 4px;
}

.navbar-nav .nav-link {
  position: relative;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text);
  letter-spacing: 0.02em;
  padding: 0.5rem 0.25rem;
  margin: 0 1rem;
  transition: color var(--transition);
  background: transparent;
}

.navbar-nav .nav-link::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: width var(--transition);
}

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

.navbar-nav .nav-link:hover::after {
  width: 100%;
}

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

.navbar-nav .nav-link.active::after {
  width: 100%;
  height: 3px;
  background: var(--accent);
}

.nav-cta {
  padding: 0.5rem 1.25rem;
  font-size: 0.875rem;
  border-radius: 8px;
}

.navbar-toggler {
  border: none;
  padding: 0.5rem;
}

.navbar-toggler:focus,
.navbar-toggler:focus-visible {
  box-shadow: 0 0 0 4px rgba(31,78,68,0.12);
  outline: none;
}

.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%23171B1A' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

@media (max-width: 991.98px) {
  .navbar {
    min-height: 60px;
  }
  .navbar-collapse {
    background: var(--surface);
    border: 1px solid var(--border);
    border-top: none;
    border-radius: 0 0 14px 14px;
    padding: 16px 20px 20px;
    box-shadow: 0 12px 30px rgba(20,40,35,0.08);
  }
  .navbar-nav {
    gap: 0;
    width: 100%;
  }
  .navbar-nav .nav-link {
    padding: 12px 0;
    margin: 0;
    border-bottom: 1px solid rgba(228,225,218,0.6);
    font-size: 1rem;
  }
  .navbar-nav .nav-link::after {
    display: none;
  }
  .navbar-nav .nav-link.active {
    color: var(--primary);
    font-weight: 600;
  }
  .nav-cta {
    margin-top: 16px;
    width: 100%;
    text-align: center;
  }
}

/* ===== 文章主区域 ===== */
.article-main {
  padding: 48px 0 24px;
}

.article-wrap {
  max-width: 780px;
  margin: 0 auto;
}

/* 面包屑 */
.breadcrumb-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 40px;
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.breadcrumb-link {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition);
}

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

.breadcrumb-sep {
  color: #C4C0B8;
}

.breadcrumb-current {
  color: var(--text-secondary);
  max-width: 360px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* 文章头部 */
.article-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 48px 48px 40px;
}

@media (max-width: 767.98px) {
  .article-card {
    padding: 28px 20px 24px;
    border-radius: var(--radius-md);
  }
}

.article-head {
  margin-bottom: 32px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 28px;
}

.article-title {
  font-family: var(--font-stack);
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--text);
  margin-bottom: 16px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.meta-item svg {
  width: 15px;
  height: 15px;
  stroke: #9BA8A3;
}

.meta-sep {
  color: #D8D4CC;
}

/* ===== 正文排版 ===== */
.article-body {
  font-size: 1rem;
  line-height: 1.75;
  color: #2A2E2C;
}

.article-body h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin: 40px 0 16px;
  color: var(--text);
  letter-spacing: -0.01em;
}

.article-body h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 32px 0 12px;
  color: var(--text);
}

.article-body h4 {
  font-size: 1.0625rem;
  font-weight: 600;
  margin: 24px 0 10px;
  color: var(--text);
}

.article-body p {
  margin-bottom: 20px;
  max-width: 68ch;
}

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

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

.article-body ul,
.article-body ol {
  margin-bottom: 20px;
  padding-left: 24px;
}

.article-body li {
  margin-bottom: 8px;
}

.article-body blockquote {
  border-left: 4px solid var(--accent);
  background: var(--bg);
  padding: 16px 24px;
  border-radius: 0 10px 10px 0;
  margin: 24px 0;
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

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

.article-body img {
  max-width: 100%;
  border-radius: var(--radius-md);
  margin: 24px 0;
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 0.9375rem;
}

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

.article-body table th {
  background: var(--bg);
  font-weight: 600;
}

.article-body pre {
  background: var(--deep);
  color: #E8EDEB;
  padding: 20px 24px;
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin: 24px 0;
  font-size: 0.875rem;
  line-height: 1.7;
}

.article-body code {
  background: rgba(31,78,68,0.08);
  color: var(--primary);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.875em;
}

.article-body pre code {
  background: transparent;
  color: inherit;
  padding: 0;
}

/* ===== 文章结尾 ===== */
.article-footer {
  margin-top: 40px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.tag {
  display: inline-block;
  padding: 4px 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.75rem;
  color: var(--text-secondary);
  transition: border-color var(--transition), color var(--transition);
}

.tag:hover {
  border-color: var(--accent);
  color: var(--primary);
}

.article-back {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px dashed var(--border);
}

.back-link {
  color: var(--text-secondary);
  font-size: 0.875rem;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

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

.back-link svg {
  width: 14px;
  height: 14px;
}

/* ===== 上一页 / 下一页 ===== */
.article-pagination {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 32px;
}

@media (max-width: 575.98px) {
  .article-pagination {
    grid-template-columns: 1fr;
  }
}

.pagination-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  color: var(--text);
  text-decoration: none;
  transition: all var(--transition);
}

.pagination-link:hover {
  border-color: rgba(31,78,68,0.3);
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
  color: var(--text);
}

.pagination-link svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: var(--primary);
}

.pagination-link small {
  display: block;
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-bottom: 2px;
}

.pagination-link strong {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.4;
}

.pagination-next {
  justify-content: flex-end;
  text-align: right;
}

/* ===== 空状态 ===== */
.article-empty {
  text-align: center;
  padding: 48px 24px;
}

.empty-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: var(--bg);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
}

.empty-icon svg {
  width: 28px;
  height: 28px;
}

.empty-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}

.empty-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

/* ===== 相关推荐 ===== */
.related-wrap {
  background: var(--bg);
  padding: 80px 0 96px;
  margin-top: 40px;
  border-top: 1px solid var(--border);
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 36px;
}

.section-title {
  font-size: clamp(1.5rem, 2.4vw, 2.1rem);
  font-weight: 600;
  color: var(--text);
  margin: 0;
  letter-spacing: -0.01em;
}

.section-link {
  color: var(--primary);
  text-decoration: none;
  font-size: 0.9375rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 500;
}

.section-link:hover {
  color: var(--accent);
}

.section-link svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition);
}

.section-link:hover svg {
  transform: translateX(4px);
}

.related-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  color: var(--text);
  text-decoration: none;
  height: 100%;
  transition: all var(--transition);
}

.related-card:hover {
  transform: translateY(-2px);
  border-color: rgba(31,78,68,0.3);
  box-shadow: var(--shadow-hover);
  color: var(--text);
}

.related-thumb {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--bg);
}

.related-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 220ms ease;
}

.related-card:hover .related-thumb img {
  transform: scale(1.03);
}

.related-body {
  padding: 20px 22px 22px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.related-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.4;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color var(--transition);
}

.related-card:hover .related-title {
  color: var(--primary);
}

.related-meta {
  font-size: 0.75rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--deep);
  color: #C8D4CF;
  padding: 64px 0 0;
  font-size: 0.875rem;
}

.site-footer .container {
  max-width: 1180px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.footer-brand .brand-mark {
  background: #E8EDEB;
}

.footer-brand .brand-mark::after {
  background: var(--accent);
}

.footer-brand .brand-text {
  color: #F5F7F6;
  font-weight: 600;
  font-size: 1.125rem;
}

.footer-desc {
  color: #9FB2AB;
  font-size: 0.875rem;
  line-height: 1.7;
  margin-bottom: 20px;
  max-width: 320px;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #9FB2AB;
  transition: all var(--transition);
}

.footer-social a:hover {
  background: rgba(185,147,95,0.15);
  border-color: var(--accent);
  color: var(--accent-light);
}

.footer-social svg {
  width: 16px;
  height: 16px;
}

.footer-title {
  font-size: 0.9375rem;
  font-weight: 600;
  color: #E8EDEB;
  margin-bottom: 18px;
  letter-spacing: 0.02em;
}

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

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

.footer-links a {
  color: #9FB2AB;
  text-decoration: none;
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--accent-light);
}

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

.footer-contact-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: #9FB2AB;
  margin-bottom: 14px;
  line-height: 1.5;
  word-break: break-all;
}

.footer-contact-list svg {
  width: 15px;
  height: 15px;
  margin-top: 4px;
  flex-shrink: 0;
  color: var(--accent);
}

.footer-bottom {
  margin-top: 48px;
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-bottom .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom p {
  margin: 0;
  font-size: 0.8125rem;
  color: #7E938C;
}

.footer-icp {
  color: #7E938C;
}

@media (max-width: 767.98px) {
  .footer-bottom .container {
    flex-direction: column;
    text-align: center;
  }
  .site-footer {
    padding-top: 48px;
  }
  .footer-bottom {
    margin-top: 32px;
  }
}

/* ===== 响应式断点 ===== */
@media (max-width: 991.98px) {
  .related-card {
    margin-bottom: 0;
  }
  .site-header .navbar {
    min-height: 60px;
  }
}

@media (max-width: 767.98px) {
  .article-main {
    padding: 32px 0 16px;
  }
  .breadcrumb-nav {
    margin-bottom: 24px;
    flex-wrap: wrap;
  }
  .breadcrumb-current {
    max-width: 200px;
  }
  .related-wrap {
    padding: 56px 0 64px;
    margin-top: 24px;
  }
  .section-head {
    margin-bottom: 24px;
    align-items: center;
  }
}

@media (max-width: 575.98px) {
  .article-title {
    font-size: 1.625rem;
  }
  .article-meta {
    gap: 6px;
  }
  .meta-sep {
    margin: 0 2px;
  }
  .article-card {
    border-radius: var(--radius-md);
  }
  .related-body {
    padding: 16px 18px 18px;
  }
}

/* roulang page: category1 */
:root {
  --brand-primary: #1F4E44;
  --brand-dark: #102522;
  --accent: #B9935F;
  --accent-light: #C9A87C;
  --bg-warm: #FAF8F5;
  --card-surface: #FFFFFF;
  --text-primary: #171B1A;
  --text-secondary: #5F6F6A;
  --text-light: #9FB2AB;
  --border-color: #E4E1DA;
  --border-light: #E6E2DA;
  --success: #2D8A4E;
  --error: #B53D2E;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow-card: 0 12px 30px rgba(20, 40, 35, 0.08);
  --transition: 180ms ease;
}
*, *::before, *::after {
  box-sizing: border-box;
}
html {
  overflow-x: hidden;
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", "Microsoft YaHei", "PingFang SC", "Noto Sans SC", sans-serif;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-primary);
  background: var(--bg-warm);
  -webkit-font-smoothing: antialiased;
}
a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition);
}
img {
  max-width: 100%;
  display: block;
}
ul, ol {
  margin: 0;
  padding: 0;
  list-style: none;
}
button, input, textarea {
  font-family: inherit;
}
h1, h2, h3, h4, h5, h6 {
  margin: 0;
  line-height: 1.3;
  color: var(--text-primary);
}
p {
  margin: 0;
}
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
@media (min-width: 1200px) {
  .container {
    max-width: 1180px;
  }
}
.btn {
  border-radius: 10px;
  font-weight: 500;
  padding: 0.75rem 1.75rem;
  font-size: 0.9375rem;
  transition: all var(--transition);
  letter-spacing: 0.01em;
}
.btn-lg {
  padding: 0.875rem 2.25rem;
  font-size: 1rem;
  border-radius: 12px;
}
.btn-brand {
  background-color: var(--brand-primary);
  border: 1px solid var(--brand-primary);
  color: #fff;
}
.btn-brand:hover {
  background-color: #174038;
  border-color: #174038;
  color: #fff;
  transform: translateY(-1px);
}
.btn-brand:active {
  transform: translateY(1px);
}
.btn-accent {
  background-color: var(--accent);
  border: 1px solid var(--accent);
  color: var(--brand-dark);
}
.btn-accent:hover {
  background-color: var(--accent-light);
  border-color: var(--accent-light);
  color: var(--brand-dark);
  transform: translateY(-1px);
}
.btn-accent:active {
  transform: translateY(1px);
}
.btn-outline-brand {
  background: transparent;
  border: 1px solid var(--brand-primary);
  color: var(--brand-primary);
}
.btn-outline-brand:hover {
  background-color: rgba(31, 78, 68, 0.05);
  color: var(--brand-primary);
  border-color: var(--brand-primary);
}
.btn-outline-light {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.5);
  color: #fff;
}
.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.75);
  color: #fff;
}
.section-padding {
  padding: 112px 0;
}
.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 64px;
}
.section-eyebrow {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(185, 147, 95, 0.1);
  border-radius: 999px;
  padding: 6px 16px;
  margin-bottom: 16px;
}
.section-head h2 {
  font-size: clamp(1.6rem, 2.4vw, 2.2rem);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
}
.section-head p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(250, 248, 245, 0.88);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-light);
}
.navbar {
  min-height: 72px;
  padding: 0;
}
.navbar-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 1.125rem;
  color: var(--text-primary);
}
.navbar-brand:hover {
  color: var(--text-primary);
}
.brand-mark {
  display: inline-block;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background-color: var(--brand-primary);
  position: relative;
  flex-shrink: 0;
}
.brand-mark::after {
  content: "";
  position: absolute;
  top: 7px;
  left: 7px;
  width: 18px;
  height: 18px;
  border: 2px solid var(--accent);
  border-radius: 50%;
}
.navbar-nav {
  gap: 10px;
}
.navbar-nav .nav-item {
  margin: 0 8px;
}
.navbar-nav .nav-link {
  color: var(--text-primary);
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  padding: 0.5rem 0;
  position: relative;
}
.navbar-nav .nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent);
  transition: width var(--transition);
}
.navbar-nav .nav-link:hover {
  color: var(--brand-primary);
}
.navbar-nav .nav-link:hover::after {
  width: 100%;
}
.navbar-nav .nav-link.active {
  color: var(--brand-primary);
}
.navbar-nav .nav-link.active::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  transition: none;
}
.nav-cta {
  padding: 8px 20px;
  font-size: 0.875rem;
  border-radius: 10px;
}
.navbar-toggler {
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 6px 10px;
}
.navbar-toggler:focus {
  box-shadow: 0 0 0 3px rgba(31, 78, 68, 0.12);
}
.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' fill='none' stroke='%23171B1A' stroke-width='2' stroke-linecap='round'%3e%3cpath d='M4 7h16'/%3e%3cpath d='M4 12h16'/%3e%3cpath d='M4 17h16'/%3e%3c/svg%3e");
}
.category-hero {
  position: relative;
  padding: 120px 0 88px;
  background: var(--bg-warm);
  overflow: hidden;
}
.category-hero::before {
  content: "";
  position: absolute;
  top: -160px;
  left: -120px;
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, rgba(31, 78, 68, 0.07), transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.category-hero::after {
  content: "";
  position: absolute;
  bottom: -100px;
  right: -80px;
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, rgba(185, 147, 95, 0.06), transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.category-hero .container {
  position: relative;
  z-index: 1;
}
.hero-eyebrow {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(185, 147, 95, 0.1);
  border-radius: 999px;
  padding: 6px 16px;
  margin-bottom: 20px;
}
.category-hero h1 {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--text-primary);
  letter-spacing: -0.01em;
  margin-bottom: 20px;
}
.hero-desc {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 440px;
  margin-bottom: 32px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.hero-visual {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 24px 48px rgba(20, 40, 35, 0.12);
  position: relative;
}
.hero-visual img {
  width: 100%;
  height: 420px;
  object-fit: cover;
}
.hero-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(31, 78, 68, 0.12), transparent 55%);
  border-radius: var(--radius-lg);
  pointer-events: none;
}
.category-services {
  background: var(--card-surface);
}
.service-card {
  height: 100%;
  background: var(--card-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition);
}
.service-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
  border-color: rgba(31, 78, 68, 0.3);
}
.card-link {
  display: flex;
  flex-direction: column;
  height: 100%;
  color: inherit;
}
.card-link:hover {
  color: inherit;
}
.card-cover {
  height: 200px;
  background-size: cover;
  background-position: center;
  border-bottom: 1px solid var(--border-color);
}
.card-body {
  padding: 24px 24px 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.card-tag {
  display: inline-block;
  align-self: flex-start;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--brand-primary);
  background: rgba(31, 78, 68, 0.08);
  border-radius: 4px;
  padding: 4px 10px;
  margin-bottom: 14px;
}
.card-body h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
  line-height: 1.4;
}
.card-body p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
  flex: 1;
}
.category-scenarios {
  background: var(--bg-warm);
}
.scenario-card {
  display: flex;
  gap: 20px;
  background: var(--card-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 28px;
  height: 100%;
  transition: all var(--transition);
}
.scenario-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
  border-color: rgba(31, 78, 68, 0.25);
}
.scenario-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: rgba(31, 78, 68, 0.08);
  color: var(--brand-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.scenario-icon svg {
  width: 26px;
  height: 26px;
}
.scenario-content h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.scenario-content p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 14px;
}
.scenario-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.scenario-tags span {
  font-size: 0.75rem;
  color: var(--text-secondary);
  background: var(--bg-warm);
  border: 1px solid var(--border-color);
  border-radius: 999px;
  padding: 4px 12px;
}
.scenario-card-wide {
  align-items: center;
}
.scenario-card-wide .scenario-content p {
  margin-bottom: 0;
}
.scenario-card-wide .scenario-tags {
  flex-shrink: 0;
}
.category-process {
  background: var(--card-surface);
}
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}
.process-steps::before {
  content: "";
  position: absolute;
  top: 36px;
  left: 8%;
  right: 8%;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--accent), transparent);
}
.process-step {
  background: var(--card-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  text-align: center;
  position: relative;
  z-index: 1;
  transition: all var(--transition);
}
.process-step:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
  border-color: rgba(185, 147, 95, 0.4);
}
.step-number {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: var(--brand-primary);
  color: #fff;
  font-size: 1.25rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 20px rgba(31, 78, 68, 0.25);
}
.process-step h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.process-step p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 180px;
  margin: 0 auto;
}
.category-faq {
  background: var(--bg-warm);
}
.faq-accordion {
  max-width: 720px;
  margin: 0 auto;
}
.faq-accordion .accordion-item {
  background: var(--card-surface);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  margin-bottom: 12px;
  overflow: hidden;
}
.faq-accordion .accordion-item:last-child {
  margin-bottom: 0;
}
.faq-accordion .accordion-header {
  margin: 0;
}
.faq-accordion .accordion-button {
  background: var(--card-surface);
  color: var(--text-primary);
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 20px 24px;
  box-shadow: none;
  border: none;
  border-radius: 0;
}
.faq-accordion .accordion-button:not(.collapsed) {
  background: #F4F1EB;
  color: var(--brand-primary);
}
.faq-accordion .accordion-button::after {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%235F6F6A' viewBox='0 0 16 16'%3e%3cpath d='M8 4a1 1 0 011 1v2h2a1 1 0 110 2H9v2a1 1 0 11-2 0V9H5a1 1 0 110-2h2V5a1 1 0 011-1z'/%3e%3c/svg%3e");
  transition: transform 0.2s ease;
}
.faq-accordion .accordion-button:not(.collapsed)::after {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%231F4E44' viewBox='0 0 16 16'%3e%3cpath d='M8 4a1 1 0 011 1v2h2a1 1 0 110 2H9v2a1 1 0 11-2 0V9H5a1 1 0 110-2h2V5a1 1 0 011-1z'/%3e%3c/svg%3e");
  transform: rotate(45deg);
}
.faq-accordion .accordion-button:focus {
  box-shadow: none;
  border-color: var(--brand-primary);
}
.faq-accordion .accordion-body {
  padding: 0 24px 20px;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--text-secondary);
  background: #F4F1EB;
  border-top: 1px solid var(--border-color);
}
.category-cta {
  background: var(--brand-dark);
  padding: 96px 0;
  position: relative;
  overflow: hidden;
}
.category-cta::before {
  content: "";
  position: absolute;
  top: -120px;
  right: -80px;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(185, 147, 95, 0.18), transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.category-cta::after {
  content: "";
  position: absolute;
  bottom: -160px;
  left: -100px;
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, rgba(31, 78, 68, 0.4), transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.cta-wrapper {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}
.cta-wrapper h2 {
  font-size: clamp(1.7rem, 2.8vw, 2.4rem);
  font-weight: 600;
  color: #fff;
  margin-bottom: 14px;
  line-height: 1.3;
}
.cta-wrapper p {
  font-size: 1rem;
  color: var(--text-light);
  margin-bottom: 32px;
}
.cta-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
}
.site-footer {
  background: var(--brand-dark);
  padding: 72px 0 0;
  color: var(--text-light);
}
.site-footer .container {
  max-width: 1180px;
}
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}
.footer-brand .brand-mark {
  background-color: var(--brand-primary);
  border: 1px solid rgba(255, 255, 255, 0.15);
}
.footer-brand .brand-text {
  color: #fff;
  font-size: 1.125rem;
  font-weight: 600;
}
.footer-desc {
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--text-light);
  max-width: 320px;
  margin-bottom: 20px;
}
.footer-social {
  display: flex;
  gap: 12px;
}
.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
  transition: all var(--transition);
}
.footer-social a:hover {
  color: var(--accent-light);
  border-color: var(--accent);
  background: rgba(185, 147, 95, 0.1);
}
.footer-social svg {
  width: 18px;
  height: 18px;
}
.footer-title {
  font-size: 0.9375rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 20px;
}
.footer-links li {
  margin-bottom: 10px;
}
.footer-links a {
  font-size: 0.875rem;
  color: var(--text-light);
  transition: color var(--transition);
}
.footer-links a:hover {
  color: var(--accent-light);
}
.footer-links a.active {
  color: var(--accent);
}
.footer-contact-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer-contact-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--text-light);
}
.footer-contact-list svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: var(--accent);
}
.footer-bottom {
  margin-top: 56px;
  padding: 24px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.8125rem;
  color: var(--text-light);
}
@media (max-width: 1199.98px) {
  .navbar-nav .nav-item {
    margin: 0 4px;
  }
  .navbar-nav {
    gap: 4px;
  }
}
@media (max-width: 991.98px) {
  .section-padding {
    padding: 80px 0;
  }
  .navbar {
    min-height: 60px;
  }
  .navbar-collapse {
    background: rgba(250, 248, 245, 0.97);
    padding: 16px 0 24px;
    border-radius: 0 0 16px 16px;
  }
  .navbar-nav .nav-item {
    margin: 0;
  }
  .navbar-nav .nav-link {
    padding: 12px 0;
    font-size: 1.0625rem;
  }
  .navbar-nav .nav-link.active::after {
    left: 0;
    transform: none;
    width: 6px;
    height: 6px;
    top: 28px;
  }
  .nav-cta {
    margin-top: 12px;
    display: inline-flex;
    width: 100%;
    justify-content: center;
  }
  .category-hero {
    padding: 72px 0 56px;
  }
  .hero-visual img {
    height: 320px;
  }
  .process-steps {
    grid-template-columns: repeat(2, 1fr);
  }
  .process-steps::before {
    display: none;
  }
  .scenario-card-wide {
    flex-wrap: wrap;
  }
}
@media (max-width: 767.98px) {
  .section-padding {
    padding: 56px 0;
  }
  .section-head {
    margin-bottom: 40px;
  }
  .category-hero {
    padding: 48px 0 40px;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .hero-visual img {
    height: 240px;
  }
  .process-steps {
    grid-template-columns: 1fr;
  }
  .scenario-card {
    flex-direction: column;
  }
  .scenario-card-wide {
    flex-direction: row;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
}
@media (max-width: 575.98px) {
  .scenario-card-wide .scenario-tags {
    margin-top: 8px;
  }
}

/* roulang page: category2 */
:root {
            --primary: #1F4E44;
            --primary-dark: #174038;
            --deep: #102522;
            --copper: #B9935F;
            --copper-light: #C9A87C;
            --bg: #FAF8F5;
            --surface: #FFFFFF;
            --text: #171B1A;
            --text-secondary: #5F6F6A;
            --border: #E4E1DA;
            --success: #2D8A4E;
            --error: #B53D2E;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 8px;
            --shadow-card: 0 12px 30px rgba(20, 40, 35, 0.08);
            --font-main: -apple-system, "Segoe UI", "Microsoft YaHei", "PingFang SC", "Noto Sans SC", sans-serif;
            --space-section: 112px;
            --space-section-md: 80px;
            --space-section-sm: 56px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-main);
            color: var(--text);
            background: var(--bg);
            line-height: 1.7;
            font-size: 0.9375rem;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }

        a:hover {
            color: var(--copper);
        }

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

        ul,
        ol {
            padding-left: 1.25rem;
        }

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

        .container {
            max-width: 1180px;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 767px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            padding: 0.75rem 1.75rem;
            font-weight: 600;
            font-size: 0.9375rem;
            line-height: 1.2;
            border: 1px solid transparent;
            transition: all 0.2s ease;
            cursor: pointer;
            white-space: nowrap;
        }

        .btn:focus {
            outline: none;
            box-shadow: 0 0 0 4px rgba(31, 78, 68, 0.15);
        }

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

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

        .btn-brand:active {
            transform: translateY(1px);
        }

        .btn-copper {
            background: var(--copper);
            color: var(--deep);
        }

        .btn-copper:hover {
            background: var(--copper-light);
            color: var(--deep);
            transform: translateY(-1px);
        }

        .btn-copper:active {
            transform: translateY(1px);
        }

        .btn-ghost {
            background: transparent;
            border-color: var(--primary);
            color: var(--primary);
        }

        .btn-ghost:hover {
            background: rgba(31, 78, 68, 0.06);
            color: var(--primary);
        }

        .btn-sm {
            padding: 0.5rem 1.25rem;
            font-size: 0.875rem;
        }

        .btn-lg {
            padding: 0.875rem 2.25rem;
            font-size: 1rem;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 1030;
            background: rgba(250, 248, 245, 0.88);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid #E6E2DA;
        }

        .navbar {
            min-height: 72px;
            padding-top: 0;
            padding-bottom: 0;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 600;
            font-size: 1.125rem;
            color: var(--text);
            padding: 0;
            margin: 0;
        }

        .navbar-brand:hover {
            color: var(--text);
        }

        .brand-mark {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--primary);
            position: relative;
            display: inline-block;
            flex-shrink: 0;
        }

        .brand-mark::after {
            content: "";
            position: absolute;
            inset: 8px;
            border-radius: 50%;
            border: 2px solid var(--copper);
        }

        .brand-text {
            font-weight: 600;
            letter-spacing: 0.01em;
        }

        .navbar .navbar-nav {
            gap: 32px;
        }

        .navbar .nav-link {
            position: relative;
            font-size: 0.9375rem;
            font-weight: 500;
            color: var(--text);
            letter-spacing: 0.02em;
            padding: 0.55rem 0;
            background: transparent;
            border: 0;
            transition: color 0.2s ease;
        }

        .navbar .nav-link::before {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            height: 2px;
            background: var(--primary);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.2s ease;
        }

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

        .navbar .nav-link:hover::before {
            transform: scaleX(1);
        }

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

        .navbar .nav-link.active::before {
            transform: scaleX(1);
        }

        .navbar .nav-link.active::after {
            content: "";
            position: absolute;
            left: 50%;
            bottom: -3px;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--copper);
            transform: translateX(-50%);
        }

        .navbar-toggler {
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 6px 10px;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 4px rgba(31, 78, 68, 0.12);
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%23171B1A' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        .nav-cta {
            margin-left: 8px;
        }

        .category-hero {
            position: relative;
            padding: 96px 0 96px;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            background-color: var(--bg);
        }

        .category-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(250, 248, 245, 0.98) 0%, rgba(250, 248, 245, 0.92) 50%, rgba(250, 248, 245, 0.65) 100%);
        }

        .category-hero .container {
            position: relative;
            z-index: 1;
        }

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8125rem;
            color: var(--text-secondary);
            margin-bottom: 24px;
        }

        .breadcrumb-nav a {
            color: var(--text-secondary);
            transition: color 0.2s ease;
        }

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

        .breadcrumb-nav .sep {
            opacity: 0.5;
            color: var(--text-secondary);
        }

        .breadcrumb-nav .current {
            color: var(--text);
            font-weight: 500;
        }

        .category-hero h1 {
            font-size: clamp(2rem, 3.4vw, 2.9rem);
            font-weight: 700;
            line-height: 1.15;
            letter-spacing: -0.01em;
            color: var(--text);
            margin-bottom: 20px;
        }

        .hero-desc {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 38ch;
            margin-bottom: 32px;
            line-height: 1.75;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .hero-visual {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border);
            background: var(--surface);
        }

        .hero-visual img {
            width: 100%;
            height: 400px;
            object-fit: cover;
        }

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

        .section-header {
            max-width: 680px;
            margin-bottom: 48px;
        }

        .section-header h2 {
            font-size: clamp(1.5rem, 2.4vw, 2.1rem);
            font-weight: 600;
            color: var(--text);
            line-height: 1.25;
            margin-bottom: 12px;
        }

        .section-header h2::before {
            content: "";
            display: inline-block;
            width: 18px;
            height: 3px;
            background: var(--copper);
            border-radius: 2px;
            margin-right: 12px;
            vertical-align: middle;
        }

        .section-header p {
            color: var(--text-secondary);
            font-size: 0.9375rem;
            margin: 0;
            line-height: 1.7;
        }

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

        .section-header.light p {
            color: #9FB2AB;
        }

        .content-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: box-shadow 0.18s ease, transform 0.18s ease, border-color 0.18s ease;
        }

        .content-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-card);
            border-color: rgba(31, 78, 68, 0.3);
        }

        .card-media {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: #E9E6DF;
        }

        .card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }

        .content-card:hover .card-media img {
            transform: scale(1.03);
        }

        .card-body {
            padding: 22px 24px 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .card-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--copper);
            background: rgba(185, 147, 95, 0.1);
            padding: 4px 10px;
            border-radius: 6px;
            margin-bottom: 14px;
            align-self: flex-start;
            letter-spacing: 0.03em;
        }

        .card-body h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .card-body p {
            font-size: 0.875rem;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 16px;
        }

        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--primary);
            margin-top: auto;
            transition: color 0.2s ease;
        }

        .card-link svg {
            transition: transform 0.2s ease;
        }

        .card-link:hover {
            color: var(--copper);
        }

        .card-link:hover svg {
            transform: translateX(4px);
        }

        .section-process {
            background: var(--deep);
            color: #F2EFE9;
            padding: var(--space-section) 0;
        }

        .process-step {
            position: relative;
            padding: 28px 22px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 14px;
            height: 100%;
            transition: background 0.2s ease, border-color 0.2s ease;
        }

        .process-step:hover {
            background: rgba(255, 255, 255, 0.07);
            border-color: rgba(185, 147, 95, 0.4);
        }

        .step-num {
            font-size: 2.4rem;
            font-weight: 300;
            color: var(--copper);
            line-height: 1;
            margin-bottom: 16px;
            font-variant-numeric: tabular-nums;
        }

        .process-step h3 {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }

        .process-step p {
            font-size: 0.8125rem;
            color: #9FB2AB;
            line-height: 1.6;
            margin: 0;
        }

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

        .stat-card {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 36px 24px;
            text-align: center;
            height: 100%;
            transition: box-shadow 0.18s ease, transform 0.18s ease, border-color 0.18s ease;
        }

        .stat-card:hover {
            box-shadow: var(--shadow-card);
            transform: translateY(-2px);
            border-color: rgba(31, 78, 68, 0.3);
        }

        .stat-number {
            font-size: clamp(2rem, 3vw, 2.8rem);
            font-weight: 300;
            color: var(--primary);
            line-height: 1.1;
            font-variant-numeric: tabular-nums;
        }

        .stat-label {
            font-size: 0.875rem;
            color: var(--text-secondary);
            margin-top: 10px;
            line-height: 1.5;
        }

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

        .section-faq .container {
            max-width: 820px;
        }

        .faq-header {
            text-align: center;
            margin-bottom: 44px;
        }

        .faq-header h2 {
            font-size: clamp(1.5rem, 2.4vw, 2.1rem);
            font-weight: 600;
            color: var(--text);
            line-height: 1.25;
            margin-bottom: 10px;
        }

        .faq-header p {
            color: var(--text-secondary);
            font-size: 0.9375rem;
        }

        .accordion {
            --bs-accordion-border-color: var(--border);
            --bs-accordion-border-radius: 12px;
            --bs-accordion-bg: var(--surface);
            --bs-accordion-color: var(--text);
        }

        .accordion-item {
            border: 1px solid var(--border);
            border-radius: 12px !important;
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color 0.2s ease, background 0.2s ease;
        }

        .accordion-item:last-of-type {
            border-radius: 12px !important;
        }

        .accordion-item:has(.accordion-button:not(.collapsed)) {
            border-color: rgba(31, 78, 68, 0.2);
            background: #F4F1EB;
        }

        .accordion-button {
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--text);
            background: transparent;
            padding: 20px 24px;
            box-shadow: none;
            border-radius: 0 !important;
        }

        .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(31, 78, 68, 0.15);
            border-radius: 12px !important;
        }

        .accordion-button:not(.collapsed) {
            background: #F4F1EB;
            color: var(--text);
            box-shadow: none;
        }

        .accordion-button::after {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23B9935F'%3e%3cpath fill-rule='evenodd' d='M8 4a1 1 0 011 1v2h2a1 1 0 110 2H9v2a1 1 0 11-2 0V9H5a1 1 0 110-2h2V5a1 1 0 011-1z' clip-rule='evenodd'/%3e%3c/svg%3e");
            transition: transform 0.2s ease;
        }

        .accordion-button:not(.collapsed)::after {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23B9935F'%3e%3cpath d='M4 8a1 1 0 011-1h6a1 1 0 110 2H5a1 1 0 01-1-1z' clip-rule='evenodd'/%3e%3c/svg%3e");
            transform: rotate(180deg);
        }

        .accordion-body {
            color: var(--text-secondary);
            font-size: 0.9375rem;
            line-height: 1.7;
            padding: 0 24px 22px;
        }

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

        .cta-box {
            background-color: var(--primary);
            border-radius: var(--radius-lg);
            padding: 64px 48px;
            text-align: center;
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            position: relative;
            overflow: hidden;
        }

        .cta-box::before {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(16, 37, 34, 0.82);
        }

        .cta-box>* {
            position: relative;
            z-index: 1;
        }

        .cta-box h2 {
            color: #fff;
            font-size: clamp(1.5rem, 2.4vw, 2.2rem);
            font-weight: 600;
            margin-bottom: 14px;
            line-height: 1.3;
        }

        .cta-box p {
            color: #C7D5CF;
            font-size: 0.9375rem;
            max-width: 520px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }

        .site-footer {
            background: var(--deep);
            color: #C7D5CF;
            padding: 72px 0 28px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-brand .brand-text {
            color: #fff;
            font-weight: 600;
            font-size: 1.125rem;
        }

        .footer-desc {
            color: #9FB2AB;
            font-size: 0.875rem;
            margin: 18px 0 20px;
            max-width: 34ch;
            line-height: 1.7;
        }

        .footer-social {
            display: flex;
            gap: 10px;
        }

        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 10px;
            border: 1px solid rgba(255, 255, 255, 0.14);
            color: #9FB2AB;
            transition: all 0.2s ease;
        }

        .footer-social a:hover {
            border-color: var(--copper);
            color: var(--copper-light);
            background: rgba(185, 147, 95, 0.08);
        }

        .footer-social svg {
            width: 17px;
            height: 17px;
        }

        .footer-title {
            font-size: 0.9375rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: 0.02em;
        }

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

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

        .footer-links a {
            color: #9FB2AB;
            font-size: 0.875rem;
            transition: color 0.2s ease;
            padding: 2px 0;
            display: inline-block;
        }

        .footer-links a:hover {
            color: var(--copper-light);
        }

        .footer-links a.active {
            color: var(--copper-light);
        }

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

        .footer-contact-list li {
            display: flex;
            gap: 10px;
            color: #9FB2AB;
            font-size: 0.875rem;
            margin-bottom: 12px;
            line-height: 1.5;
        }

        .footer-contact-list svg {
            width: 16px;
            height: 16px;
            color: var(--copper-light);
            flex-shrink: 0;
            margin-top: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            margin-top: 48px;
            text-align: center;
        }

        .footer-bottom p {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.8125rem;
            margin: 0;
            letter-spacing: 0.02em;
        }

        @media (max-width: 991.98px) {
            .navbar {
                min-height: 60px;
            }

            .navbar-collapse {
                padding: 16px 0;
                border-top: 1px solid var(--border);
                margin-top: 8px;
            }

            .navbar .navbar-nav {
                gap: 0;
                width: 100%;
            }

            .nav-item {
                width: 100%;
            }

            .navbar .nav-link {
                padding: 14px 0;
                font-size: 1.05rem;
                border-bottom: 1px solid var(--border);
                width: auto;
            }

            .navbar .nav-link.active::after {
                bottom: 6px;
            }

            .nav-cta {
                margin: 18px 0 6px;
                width: 100%;
            }

            .category-hero {
                padding: 56px 0 64px;
            }

            .hero-visual img {
                height: 280px;
            }

            .section-grid,
            .section-process,
            .section-stats,
            .section-faq,
            .section-cta {
                padding: var(--space-section-md) 0;
            }

            .cta-box {
                padding: 48px 32px;
            }

            .process-step {
                margin-bottom: 8px;
            }
        }

        @media (max-width: 767px) {
            .category-hero h1 {
                font-size: 2rem;
            }

            .hero-desc {
                font-size: 0.9375rem;
            }

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

            .section-grid,
            .section-process,
            .section-stats,
            .section-faq,
            .section-cta {
                padding: var(--space-section-sm) 0;
            }

            .section-header {
                margin-bottom: 32px;
            }

            .cta-box {
                padding: 40px 20px;
                border-radius: 16px;
            }

            .cta-box h2 {
                font-size: 1.4rem;
            }

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

            .footer-bottom p {
                font-size: 0.75rem;
            }
        }