/* roulang page: index */
:root {
  --bg-main: #F4F6F8;
  --bg-sub: #EEF3F1;
  --bg-card: #FFFFFF;
  --primary: #0F4C45;
  --primary-hover: #257A6D;
  --accent: #E8823A;
  --accent-dark: #D96F2A;
  --wave: #A8D9A0;
  --dark: #0C1D19;
  --text-main: #17211E;
  --text-sub: #5E6E77;
  --text-light: #8FA09C;
  --border: #DCE4E0;
  --border-deep: #B8CCC5;
  --success: #2E7D5B;
  --warning: #C77A29;
  --radius-card: 12px;
  --radius-btn: 8px;
  --radius-badge: 999px;
  --shadow-rest: 0 1px 2px rgba(12,29,25,0.04), 0 4px 16px rgba(12,29,25,0.06);
  --shadow-hover: 0 8px 24px rgba(12,29,25,0.10);
  --font-body: 'Noto Sans SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Roboto Mono', Consolas, monospace;
  --transition: 0.2s ease;
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-body);
  background: var(--bg-main);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  padding-bottom: 64px;
}

a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary-hover); }
img { max-width: 100%; display: block; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }

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

.mono { font-family: var(--font-mono); }

/* ============ HEADER ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition);
}
.site-header.is-scrolled {
  box-shadow: 0 2px 12px rgba(12,29,25,0.06);
}
.brand-row {
  display: flex;
  align-items: center;
  height: 52px;
  gap: 16px;
  padding: 0 24px;
  max-width: 1200px;
  margin: 0 auto;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.logo-mark::after {
  content: '';
  position: absolute;
  bottom: 8px;
  left: 6px;
  right: 6px;
  height: 2px;
  background: var(--wave);
  border-radius: 2px;
  box-shadow: 0 -4px 0 var(--wave), 0 -8px 0 rgba(168,217,160,0.5);
}
.logo-text {
  font-size: 18px;
  font-weight: 900;
  color: var(--primary);
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.logo-text .logo-sub {
  font-size: 12px;
  font-weight: 400;
  color: var(--text-sub);
  background: var(--bg-main);
  border-radius: var(--radius-badge);
  padding: 2px 8px;
  margin-left: 4px;
}
.header-search {
  display: flex;
  align-items: center;
  flex: 0 1 260px;
  margin-left: 20px;
}
.header-search input {
  width: 100%;
  height: 36px;
  border: 1px solid var(--border);
  border-right: none;
  border-radius: var(--radius-btn) 0 0 var(--radius-btn);
  padding: 0 12px;
  font-size: 13px;
  background: var(--bg-main);
  outline: none;
  transition: border-color var(--transition);
}
.header-search input:focus {
  border-color: var(--primary-hover);
  background: var(--bg-card);
}
.header-search button {
  height: 36px;
  padding: 0 14px;
  border: 1px solid var(--primary);
  border-radius: 0 var(--radius-btn) var(--radius-btn) 0;
  background: var(--primary);
  color: #fff;
  font-size: 13px;
  cursor: pointer;
  transition: all var(--transition);
}
.header-search button:hover { background: var(--primary-hover); }
.header-hot {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  font-size: 12px;
  color: var(--text-sub);
  white-space: nowrap;
}
.header-hot a {
  color: var(--text-sub);
  border: 1px solid var(--border);
  border-radius: var(--radius-badge);
  padding: 2px 10px;
  transition: all var(--transition);
}
.header-hot a:hover {
  color: var(--primary);
  border-color: var(--primary-hover);
  background: var(--bg-sub);
}
.header-phone {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  margin-left: 12px;
  white-space: nowrap;
}
.channel-row {
  border-top: 1px solid var(--border);
  background: var(--bg-card);
}
.channel-nav {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  height: 44px;
  gap: 4px;
  padding: 0 24px;
  list-style: none;
}
.channel-nav li a {
  display: block;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-main);
  border-bottom: 2px solid transparent;
  transition: all var(--transition);
  line-height: 1.2;
}
.channel-nav li a:hover {
  color: var(--primary);
  background: var(--bg-sub);
}
.channel-nav li a.active {
  color: var(--primary);
  font-weight: 700;
  border-bottom-color: var(--accent);
}
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  border-radius: 6px;
}
.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-main);
  margin: 4px 0;
  border-radius: 2px;
  transition: all var(--transition);
}

/* ============ HERO ============ */
.hero {
  background: var(--dark);
  position: relative;
  overflow: hidden;
  color: #fff;
  padding: 68px 0 0;
}
.hero::before {
  content: '';
  position: absolute;
  top: -60px;
  left: -40px;
  width: 500px;
  height: 300px;
  background:
    radial-gradient(ellipse at 30% 50%, rgba(168,217,160,0.15) 0%, transparent 60%),
    repeating-linear-gradient(90deg, transparent 0 20px, rgba(168,217,160,0.12) 20px 22px, transparent 22px 60px);
  transform: rotate(-12deg);
  pointer-events: none;
}
.hero-wave {
  position: absolute;
  right: 8%;
  bottom: 15%;
  width: 260px;
  height: 80px;
  opacity: 0.3;
  pointer-events: none;
}
.hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
  padding: 0 24px;
  position: relative;
  z-index: 2;
}
.hero-badge {
  display: inline-block;
  background: rgba(168,217,160,0.15);
  border: 1px solid rgba(168,217,160,0.25);
  color: var(--wave);
  font-size: 12px;
  font-weight: 500;
  padding: 4px 14px;
  border-radius: var(--radius-badge);
  margin-bottom: 18px;
  letter-spacing: 0.04em;
}
.hero h1 {
  font-size: 44px;
  line-height: 1.25;
  font-weight: 900;
  color: #fff;
  letter-spacing: -0.01em;
  margin-bottom: 16px;
}
.hero-sub {
  font-size: 16px;
  line-height: 1.75;
  color: rgba(255,255,255,0.72);
  margin-bottom: 32px;
  max-width: 480px;
}
.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-btn);
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  line-height: 1.2;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
  color: #fff;
}
.btn-accent {
  background: var(--accent);
  color: var(--dark);
}
.btn-accent:hover {
  background: #f0934f;
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
  color: var(--dark);
}
.btn-outline {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.35);
  color: #fff;
}
.btn-outline:hover {
  border-color: var(--wave);
  color: var(--wave);
  background: rgba(168,217,160,0.08);
}
.hero-visual {
  position: relative;
}
.hero-visual img {
  border-radius: var(--radius-card);
  box-shadow: 0 20px 60px rgba(0,0,0,0.35);
  width: 100%;
  height: auto;
}
.hero-float-card {
  position: absolute;
  bottom: -20px;
  right: -12px;
  background: var(--bg-card);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-hover);
  padding: 18px 22px;
  min-width: 180px;
  color: var(--text-main);
}
.hero-float-card .float-value {
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
}
.hero-float-card .float-label {
  font-size: 12px;
  color: var(--text-sub);
  margin-top: 4px;
}
.hero-float-card .float-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  display: inline-block;
  margin-right: 6px;
}
.hero-metrics {
  margin-top: 68px;
  background: rgba(255,255,255,0.03);
  border-top: 1px solid rgba(255,255,255,0.08);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.metrics-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding: 28px 24px;
  gap: 24px;
}
.metric-item {
  text-align: center;
  padding: 8px 12px;
}
.metric-value {
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 700;
  color: var(--wave);
  line-height: 1.3;
}
.metric-label {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  margin-top: 6px;
}

/* ============ FEATURES ============ */
.section-pad { padding: 80px 0; }
.section-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 500;
  color: var(--primary-hover);
  background: rgba(37,122,109,0.08);
  border-radius: var(--radius-badge);
  padding: 4px 14px;
  margin-bottom: 12px;
}
.section-title {
  font-size: 30px;
  line-height: 1.4;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 12px;
}
.section-desc {
  font-size: 15px;
  color: var(--text-sub);
  max-width: 640px;
  line-height: 1.7;
}
.features-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr 1fr;
  gap: 24px;
  margin-top: 48px;
  align-items: stretch;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 32px 28px;
  position: relative;
  box-shadow: var(--shadow-rest);
  transition: all var(--transition);
}
.feature-card.center {
  background: var(--bg-sub);
  border-color: transparent;
  transform: scale(1.02);
  box-shadow: var(--shadow-hover);
}
.feature-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
  border-color: var(--primary-hover);
}
.feature-card.center:hover { transform: scale(1.02) translateY(-2px); }
.feature-icon {
  width: 44px;
  height: 44px;
  border: 2px solid var(--primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--primary);
  font-size: 20px;
}
.feature-num {
  position: absolute;
  top: 24px;
  right: 24px;
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--border-deep);
}
.feature-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 10px;
}
.feature-card p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-sub);
}
.feature-more {
  display: inline-block;
  margin-top: 16px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  border-bottom: 1px solid transparent;
  transition: all var(--transition);
}
.feature-more:hover { border-bottom-color: var(--primary); }

/* ============ SCENARIO ============ */
.scenario-section {
  background: var(--bg-sub);
  padding: 80px 0;
}
.scenario-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.scenario-left .section-title {
  font-size: 28px;
}
.scenario-points {
  list-style: none;
  margin-top: 24px;
}
.scenario-points li {
  position: relative;
  padding: 8px 0 8px 20px;
  font-size: 15px;
  color: var(--text-main);
  line-height: 1.6;
}
.scenario-points li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 18px;
  width: 4px;
  height: 16px;
  border-radius: 4px;
  background: var(--primary-hover);
}
.scenario-right .flow-wrap {
  position: relative;
  padding: 32px;
}
.flow-vertical {
  list-style: none;
  position: relative;
  padding-left: 36px;
}
.flow-vertical::before {
  content: '';
  position: absolute;
  left: 14px;
  top: 12px;
  bottom: 12px;
  width: 2px;
  border-left: 2px dashed var(--border-deep);
}
.flow-item {
  position: relative;
  padding: 12px 0 28px 20px;
}
.flow-item:last-child { padding-bottom: 0; }
.flow-dot {
  position: absolute;
  left: -36px;
  top: 16px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--primary);
  border: 3px solid var(--bg-sub);
  box-shadow: 0 0 0 2px var(--primary);
}
.flow-item h4 {
  font-size: 17px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 4px;
}
.flow-item p {
  font-size: 13px;
  color: var(--text-sub);
  line-height: 1.6;
}
.flow-note {
  display: inline-block;
  margin-top: 6px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 10px;
  font-size: 12px;
  color: var(--text-sub);
  font-family: var(--font-mono);
}
.scenario-img {
  margin-top: 28px;
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-rest);
}
.scenario-img img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}
.scenario-anchors {
  display: flex;
  gap: 12px;
  margin-top: 24px;
}
.scenario-anchor {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border-radius: var(--radius-btn);
  background: var(--bg-card);
  border: 1px solid var(--border);
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
  transition: all var(--transition);
}
.scenario-anchor:hover {
  border-color: var(--primary-hover);
  box-shadow: var(--shadow-hover);
  transform: translateY(-1px);
}

/* ============ TESTIMONIALS ============ */
.testimonials {
  background: var(--dark);
  padding: 72px 0;
  color: #fff;
}
.testimonials-label {
  font-size: 13px;
  color: var(--wave);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 12px;
  text-align: center;
}
.testimonials-title {
  font-size: 26px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 40px;
}
.client-logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px 40px;
  margin-bottom: 48px;
}
.client-logos span {
  font-size: 17px;
  font-weight: 600;
  color: rgba(255,255,255,0.45);
  letter-spacing: 0.02em;
  padding: 8px 12px;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px;
  background: rgba(255,255,255,0.03);
  white-space: nowrap;
}
.quote-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  max-width: 960px;
  margin: 0 auto;
}
.quote-item {
  border-left: 3px solid var(--wave);
  padding: 4px 0 4px 20px;
}
.quote-item p {
  font-size: 15px;
  line-height: 1.7;
  color: rgba(255,255,255,0.85);
}
.quote-item footer {
  margin-top: 12px;
  font-size: 13px;
  color: rgba(255,255,255,0.5);
}

/* ============ NEWS ============ */
.news-section { background: var(--bg-main); }
.news-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 36px;
  flex-wrap: wrap;
  gap: 16px;
}
.news-more {
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
  border-bottom: 1px solid transparent;
  transition: all var(--transition);
}
.news-more:hover { border-bottom-color: var(--primary); }
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.news-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-rest);
  transition: all var(--transition);
}
.news-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--primary-hover);
}
.news-cover {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--bg-sub);
}
.news-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.news-card:hover .news-cover img { transform: scale(1.02); }
.news-body {
  padding: 20px 22px 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.news-cat {
  display: inline-block;
  align-self: flex-start;
  font-size: 12px;
  font-weight: 500;
  color: var(--primary);
  background: rgba(37,122,109,0.08);
  border-radius: var(--radius-badge);
  padding: 2px 10px;
  margin-bottom: 10px;
}
.news-body h3 {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 8px;
  color: var(--text-main);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-body p {
  font-size: 13px;
  color: var(--text-sub);
  line-height: 1.6;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 14px;
}
.news-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.news-date {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-light);
}
.news-link {
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
}
.news-card:hover .news-link { color: var(--primary-hover); }
.empty-state {
  border: 2px dashed var(--border);
  border-radius: var(--radius-card);
  padding: 56px 24px;
  text-align: center;
  background: var(--bg-card);
}
.empty-state p {
  font-size: 15px;
  color: var(--text-sub);
  margin-bottom: 16px;
}

/* ============ FAQ ============ */
.faq-section { background: var(--bg-main); }
.faq-inner {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 56px;
}
.faq-left .section-title { font-size: 28px; }
.faq-list {
  border-top: 1px solid var(--border);
}
.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 4px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  color: var(--text-main);
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  transition: color var(--transition);
}
.faq-question:hover { color: var(--primary); }
.faq-icon {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 1px solid var(--border-deep);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--primary);
  transition: transform var(--transition);
}
.faq-item.active .faq-icon { transform: rotate(45deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  padding: 0 4px;
  transition: max-height 0.3s ease, padding 0.3s ease;
}
.faq-item.active .faq-answer {
  max-height: 360px;
  padding: 0 4px 18px;
}
.faq-answer p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-sub);
  background: var(--bg-main);
  border-radius: 8px;
  padding: 14px 16px;
}

/* ============ FIXED CTA ============ */
.fixed-cta {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 90;
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  box-shadow: 0 -4px 20px rgba(12,29,25,0.06);
  padding: 12px 0;
}
.cta-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 0 24px;
}
.cta-left {
  font-size: 15px;
  color: var(--text-main);
  font-weight: 500;
}
.cta-left .cta-phone {
  font-family: var(--font-mono);
  color: var(--primary);
  font-weight: 700;
  margin-left: 8px;
}
.cta-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.cta-qr {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-sub);
}

/* ============ FOOTER ============ */
.site-footer {
  background: var(--dark);
  color: rgba(255,255,255,0.65);
  padding: 56px 0 24px;
  font-size: 14px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.4fr;
  gap: 40px;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  margin-bottom: 24px;
}
.footer-brand .logo-text { color: #fff; font-size: 20px; }
.footer-brand p {
  margin-top: 12px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255,255,255,0.5);
  max-width: 280px;
}
.footer-col h5 {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}
.footer-col ul {
  list-style: none;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a {
  color: rgba(255,255,255,0.55);
  font-size: 14px;
  transition: color var(--transition);
}
.footer-col ul li a:hover { color: var(--wave); }
.footer-contact p {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  font-size: 14px;
  color: rgba(255,255,255,0.55);
}
.footer-contact .mono {
  color: var(--wave);
  font-weight: 600;
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: rgba(255,255,255,0.35);
  flex-wrap: wrap;
  gap: 8px;
}

/* ============ RESPONSIVE ============ */
@media (max-width: 1024px) {
  .hero h1 { font-size: 36px; }
  .hero-inner { gap: 40px; }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .feature-card.center { transform: none; grid-column: span 2; }
  .feature-card.center:hover { transform: translateY(-2px); }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 767px) {
  body { padding-bottom: 72px; }
  .section-pad { padding: 48px 0; }
  .scenario-section { padding: 48px 0; }
  .testimonials { padding: 48px 0; }
  .brand-row { height: 52px; flex-wrap: nowrap; padding: 0 16px; }
  .header-search { display: none; }
  .header-hot { display: none; }
  .header-phone { display: none; }
  .nav-toggle { display: block; margin-left: auto; }
  .channel-row {
    display: none;
    position: fixed;
    top: 52px;
    left: 0;
    right: 0;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-hover);
    z-index: 99;
    max-height: calc(100vh - 52px);
    overflow-y: auto;
  }
  .channel-row.open { display: block; }
  .channel-nav {
    flex-direction: column;
    height: auto;
    padding: 8px 16px 16px;
    align-items: stretch;
  }
  .channel-nav li a {
    padding: 14px 12px;
    border-bottom: 1px solid var(--border);
    font-size: 15px;
  }
  .channel-nav li a.active {
    border-bottom-color: var(--border);
    color: var(--primary);
    font-weight: 700;
    background: var(--bg-sub);
    border-radius: var(--radius-btn);
  }
  .mobile-search {
    display: block;
    padding: 12px 0;
  }
  .mobile-search input {
    width: 100%;
    height: 40px;
    border: 1px solid var(--border);
    border-radius: var(--radius-btn);
    padding: 0 14px;
    font-size: 14px;
    background: var(--bg-main);
  }
  .mobile-hot {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 12px 0;
  }
  .mobile-hot a {
    font-size: 12px;
    color: var(--text-sub);
    border: 1px solid var(--border);
    border-radius: var(--radius-badge);
    padding: 4px 10px;
  }
  .mobile-phone {
    display: block;
    margin-top: 12px;
    text-align: center;
  }
  .mobile-phone a {
    display: inline-block;
    width: 100%;
    padding: 12px;
    background: var(--primary);
    color: #fff;
    border-radius: var(--radius-btn);
    font-weight: 600;
    text-align: center;
  }
  .hero { padding: 48px 0 0; }
  .hero-inner { grid-template-columns: 1fr; gap: 32px; padding: 0 16px; }
  .hero h1 { font-size: 30px; line-height: 1.35; }
  .hero-sub { font-size: 15px; line-height: 1.7; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
  .hero-visual img { border-radius: var(--radius-card); }
  .hero-float-card {
    bottom: -14px;
    right: 8px;
    padding: 14px 16px;
    min-width: 150px;
  }
  .hero-float-card .float-value { font-size: 22px; }
  .hero-metrics { margin-top: 48px; }
  .metrics-inner { grid-template-columns: repeat(2, 1fr); gap: 16px; padding: 20px 16px; }
  .metric-value { font-size: 24px; }
  .metric-label { font-size: 12px; }
  .features-grid { grid-template-columns: 1fr; gap: 16px; margin-top: 32px; }
  .feature-card.center { grid-column: auto; transform: none; }
  .scenario-inner { grid-template-columns: 1fr; gap: 40px; }
  .scenario-left .section-title { font-size: 24px; }
  .flow-vertical { padding-left: 32px; }
  .flow-dot { left: -32px; width: 14px; height: 14px; }
  .quote-list { grid-template-columns: 1fr; gap: 20px; }
  .client-logos { gap: 12px 20px; }
  .client-logos span { font-size: 14px; padding: 6px 10px; }
  .news-grid { grid-template-columns: 1fr; }
  .news-header { flex-direction: column; align-items: flex-start; }
  .faq-inner { grid-template-columns: 1fr; gap: 32px; }
  .cta-left { font-size: 13px; }
  .cta-qr { display: none; }
  .fixed-cta {
    padding: 0;
    background: var(--dark);
    border-top: none;
  }
  .cta-inner {
    padding: 10px 16px;
    justify-content: space-between;
  }
  .cta-left {
    color: rgba(255,255,255,0.8);
    font-size: 13px;
  }
  .cta-left .cta-phone { color: var(--wave); }
  .cta-actions .btn-accent {
    min-width: 120px;
    padding: 10px 18px;
  }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .footer-bottom .mono { font-size: 12px; }
}

@media (min-width: 768px) {
  .mobile-search, .mobile-hot, .mobile-phone { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition: none !important;
    animation: none !important;
  }
  html { scroll-behavior: auto; }
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
:root {
  --bg-main: #F4F6F8;
  --bg-alt: #EEF3F1;
  --bg-card: #FFFFFF;
  --primary: #0F4C45;
  --primary-hover: #257A6D;
  --accent: #E8823A;
  --accent-dark: #1B1206;
  --wave: #A8D9A0;
  --dark: #0C1D19;
  --text-main: #17211E;
  --text-sub: #5E6E77;
  --border: #DCE4E0;
  --success: #2E7D5B;
  --warning: #C77A29;
  --radius-card: 12px;
  --radius-btn: 8px;
  --radius-input: 8px;
  --shadow: 0 1px 2px rgba(12,29,25,0.04), 0 4px 16px rgba(12,29,25,0.06);
  --shadow-hover: 0 8px 24px rgba(12,29,25,0.10);
  --transition: 0.2s ease;
  --container: 1200px;
  --header-brand-h: 52px;
  --header-channel-h: 44px;
  --font-mono: 'JetBrains Mono', 'Roboto Mono', Consolas, monospace;
  --font-cn: 'Noto Sans SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', sans-serif;
}

/* ===== Base Reset ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-cn);
  background: var(--bg-main);
  color: var(--text-main);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover {
  color: var(--primary-hover);
}
button {
  border: none;
  cursor: pointer;
  font-family: inherit;
}
input, textarea {
  font-family: inherit;
}
ul {
  list-style: none;
}
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
.section {
  padding: 80px 0;
}
@media (max-width: 767px) {
  .section {
    padding: 48px 0;
  }
}
::selection {
  background: rgba(37, 122, 109, 0.2);
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-btn);
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  text-align: center;
  gap: 8px;
  transition: all var(--transition);
  border: 1px solid transparent;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--primary-hover);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}
.btn-accent {
  background: var(--accent);
  color: var(--accent-dark);
}
.btn-accent:hover {
  background: #F0924D;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(232, 130, 58, 0.25);
  color: var(--accent-dark);
}
.btn-outline {
  background: transparent;
  border-color: #B8CCC5;
  color: var(--primary);
}
.btn-outline:hover {
  border-color: var(--primary-hover);
  background: rgba(37, 122, 109, 0.06);
  color: var(--primary-hover);
  transform: translateY(-2px);
}
.btn-block {
  width: 100%;
}
.btn-sm {
  padding: 8px 16px;
  font-size: 14px;
}

/* ===== 标签 ===== */
.tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  padding: 4px 12px;
  border-radius: 999px;
  background: rgba(37, 122, 109, 0.08);
  color: var(--primary);
  border: 1px solid rgba(37, 122, 109, 0.15);
  letter-spacing: 0.02em;
  line-height: 1.4;
}
.tag-accent {
  background: rgba(232, 130, 58, 0.10);
  color: #B25A1B;
  border-color: rgba(232, 130, 58, 0.20);
}
.tag-gray {
  background: rgba(94, 110, 119, 0.08);
  color: var(--text-sub);
  border-color: rgba(94, 110, 119, 0.12);
}

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: #fff;
  border-bottom: 1px solid var(--border);
  box-shadow: none;
  transition: box-shadow var(--transition), background var(--transition);
}
.site-header.scrolled {
  box-shadow: 0 2px 8px rgba(12,29,25,0.05);
}
.brand-row {
  height: var(--header-brand-h);
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 20px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-mark {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  background: var(--primary);
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.logo-mark::before {
  content: '';
  position: absolute;
  width: 28px;
  height: 14px;
  border: 2px solid var(--wave);
  border-left: none;
  border-right: none;
  border-radius: 50%;
  transform: rotate(-8deg);
  opacity: 0.8;
}
.logo-mark::after {
  content: '';
  position: absolute;
  width: 10px;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
  bottom: 7px;
  left: 6px;
}
.logo-text {
  font-size: 20px;
  font-weight: 900;
  color: var(--primary);
  letter-spacing: -0.02em;
  line-height: 1.2;
}
.logo-sub {
  font-size: 13px;
  font-weight: 400;
  color: var(--text-sub);
  margin-left: 2px;
  letter-spacing: 0.08em;
}
.header-search {
  display: flex;
  align-items: center;
  flex: 0 0 280px;
  height: 36px;
  background: var(--bg-main);
  border: 1px solid var(--border);
  border-radius: var(--radius-input);
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.header-search:focus-within {
  border-color: var(--primary-hover);
  box-shadow: 0 0 0 3px rgba(37, 122, 109, 0.12);
}
.header-search input {
  flex: 1;
  height: 100%;
  border: none;
  background: transparent;
  padding: 0 12px;
  font-size: 14px;
  color: var(--text-main);
  outline: none;
}
.header-search button {
  height: 100%;
  padding: 0 12px;
  background: var(--primary);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  border-radius: 0;
  transition: background var(--transition);
  white-space: nowrap;
}
.header-search button:hover {
  background: var(--primary-hover);
}
.header-hot {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--text-sub);
}
.header-hot a {
  color: var(--text-sub);
  border-bottom: 1px dashed transparent;
  transition: color var(--transition), border-color var(--transition);
}
.header-hot a:hover {
  color: var(--primary);
  border-bottom-color: var(--primary);
}
.header-phone {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 16px;
  font-weight: 700;
  color: var(--primary);
  white-space: nowrap;
  font-family: var(--font-mono);
  letter-spacing: -0.02em;
}
.header-phone span {
  font-size: 18px;
  line-height: 1;
}
.channel-row {
  border-top: 1px solid var(--border);
  background: #fff;
  transition: background var(--transition), border-color var(--transition);
}
.channel-nav {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  height: var(--header-channel-h);
  display: flex;
  align-items: center;
  gap: 4px;
  overflow-x: auto;
  scrollbar-width: none;
}
.channel-nav::-webkit-scrollbar {
  display: none;
}
.channel-nav li a {
  display: inline-block;
  padding: 10px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-sub);
  border-bottom: 2px solid transparent;
  transition: color var(--transition), border-color var(--transition);
  white-space: nowrap;
}
.channel-nav li a:hover {
  color: var(--primary);
}
.channel-nav li a.active {
  color: var(--primary);
  border-bottom-color: var(--accent);
  font-weight: 600;
}
.site-header.scrolled .brand-row {
  height: 44px;
}
.site-header.scrolled .channel-row {
  min-height: 40px;
}
.site-header.scrolled .channel-nav {
  height: 40px;
}
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 6px;
  background: transparent;
  border: 1px solid var(--border);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  margin-left: auto;
  transition: background var(--transition);
}
.nav-toggle:hover {
  background: var(--bg-main);
}
.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}
.mobile-search, .mobile-hot, .mobile-phone {
  display: none;
}

/* ===== 分类页横幅 ===== */
.category-hero {
  background: var(--dark);
  position: relative;
  overflow: hidden;
  padding: 72px 0;
}
.category-hero::before {
  content: '';
  position: absolute;
  top: -40px;
  right: 10%;
  width: 520px;
  height: 220px;
  background: repeating-linear-gradient(
    115deg,
    transparent 0,
    transparent 20px,
    rgba(168, 217, 160, 0.12) 20px,
    rgba(168, 217, 160, 0.12) 22px
  );
  border-radius: 50%;
  transform: rotate(-15deg);
  pointer-events: none;
}
.category-hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--accent) 0%, var(--accent) 40%, var(--wave) 40%, var(--wave) 100%);
  opacity: 0.6;
}
.hero-inner {
  position: relative;
  z-index: 2;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
.category-hero .crumbs {
  font-family: var(--font-mono);
  font-size: 13px;
  color: rgba(255,255,255,0.55);
  margin-bottom: 18px;
}
.category-hero .crumbs a {
  color: rgba(255,255,255,0.65);
}
.category-hero .crumbs a:hover {
  color: var(--wave);
}
.category-hero .crumbs span {
  color: rgba(255,255,255,0.4);
  margin: 0 6px;
}
.hero-inner h1 {
  font-size: 42px;
  font-weight: 900;
  color: #fff;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}
.hero-inner .hero-desc {
  font-size: 17px;
  color: rgba(255,255,255,0.8);
  max-width: 640px;
  line-height: 1.7;
  margin-bottom: 24px;
}
.hero-inner .hero-cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.hero-inner .btn-accent {
  padding: 13px 28px;
}
.hero-inner .btn-outline {
  border-color: rgba(255,255,255,0.4);
  color: #fff;
}
.hero-inner .btn-outline:hover {
  border-color: var(--wave);
  color: var(--wave);
  background: rgba(168, 217, 160, 0.08);
}
@media (max-width: 767px) {
  .category-hero {
    padding: 48px 0;
  }
  .hero-inner h1 {
    font-size: 30px;
  }
  .hero-inner .hero-desc {
    font-size: 15px;
  }
}

/* ===== 分类主体双栏 ===== */
.category-main {
  padding: 60px 0 80px;
  background: var(--bg-main);
}
.category-grid {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 40px;
}
@media (max-width: 1023px) {
  .category-grid {
    grid-template-columns: 1fr;
  }
}
.content-left {
  min-width: 0;
}
.sidebar-right {
  min-width: 0;
}

/* ===== 左侧内容区块 ===== */
.content-block {
  margin-bottom: 40px;
}
.content-block .section-label {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 10px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.content-block .section-label::before {
  content: '';
  width: 18px;
  height: 2px;
  background: var(--accent);
  display: inline-block;
}
.content-block h2 {
  font-size: 28px;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.35;
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}
.content-block h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.4;
  margin-bottom: 12px;
}
.content-block p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-sub);
  margin-bottom: 16px;
}
.content-block p strong {
  color: var(--text-main);
  font-weight: 600;
}

/* 配图 */
.block-image {
  border-radius: var(--radius-card);
  overflow: hidden;
  margin: 20px 0;
  background: var(--bg-alt);
  border: 1px solid var(--border);
}
.block-image img {
  width: 100%;
  height: auto;
  object-fit: cover;
}
.block-image .img-caption {
  padding: 10px 16px;
  font-size: 13px;
  color: var(--text-sub);
  background: #fff;
  border-top: 1px solid var(--border);
  font-family: var(--font-mono);
}

/* ===== 核心能力编号卡片 ===== */
.capability-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 20px;
}
@media (max-width: 1023px) {
  .capability-list {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 767px) {
  .capability-list {
    grid-template-columns: 1fr;
  }
}
.capability-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 24px;
  position: relative;
  box-shadow: var(--shadow);
  transition: all var(--transition);
}
.capability-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
  border-color: var(--primary-hover);
}
.capability-card .card-icon {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: rgba(37, 122, 109, 0.08);
  border: 1px solid rgba(37, 122, 109, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.capability-card .card-icon svg {
  width: 20px;
  height: 20px;
  stroke: var(--primary);
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.capability-card .card-num {
  position: absolute;
  top: 18px;
  right: 20px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--border);
  letter-spacing: 0.05em;
}
.capability-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 10px;
}
.capability-card p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-sub);
  margin-bottom: 0;
}

/* ===== 适用行业 ===== */
.industry-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
@media (max-width: 767px) {
  .industry-list {
    grid-template-columns: 1fr;
  }
}
.industry-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 18px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  transition: all var(--transition);
}
.industry-item:hover {
  border-color: var(--primary-hover);
  box-shadow: var(--shadow);
}
.industry-item .dot {
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 7px;
  position: relative;
}
.industry-item .dot::after {
  content: '';
  position: absolute;
  inset: -4px;
  border: 2px solid rgba(37, 122, 109, 0.25);
  border-radius: 50%;
}
.industry-item h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 4px;
}
.industry-item p {
  font-size: 13px;
  color: var(--text-sub);
  line-height: 1.6;
  margin: 0;
}

/* ===== 流程 ===== */
.process-track {
  background: var(--bg-alt);
  border-radius: var(--radius-card);
  border: 1px solid var(--border);
  padding: 28px;
  margin-top: 24px;
}
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  position: relative;
}
@media (max-width: 767px) {
  .process-steps {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}
.process-step {
  position: relative;
  padding-top: 32px;
  text-align: center;
}
.process-step::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  width: 12px;
  height: 12px;
  background: var(--primary);
  border-radius: 50%;
  transform: translateX(-50%);
  z-index: 2;
  box-shadow: 0 0 0 4px rgba(37, 122, 109, 0.15);
}
.process-step::after {
  content: '';
  position: absolute;
  top: 5px;
  right: calc(-50% + 6px);
  width: calc(100% - 12px);
  height: 2px;
  background: repeating-linear-gradient(90deg, var(--primary-hover) 0, var(--primary-hover) 6px, transparent 6px, transparent 10px);
  opacity: 0.35;
}
.process-step:last-child::after {
  display: none;
}
@media (max-width: 767px) {
  .process-step::after {
    top: 6px;
    right: auto;
    left: 50%;
    bottom: -16px;
    width: 2px;
    height: 16px;
    background: repeating-linear-gradient(180deg, var(--primary-hover) 0, var(--primary-hover) 6px, transparent 6px, transparent 10px);
    opacity: 0.35;
  }
  .process-step:last-child::after {
    display: none;
  }
}
.process-step .step-num {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  display: block;
  margin-bottom: 6px;
  letter-spacing: 0.06em;
}
.process-step .step-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 6px;
}
.process-step .step-desc {
  font-size: 13px;
  color: var(--text-sub);
  line-height: 1.6;
  padding: 0 8px;
}

/* ===== FAQ ===== */
.faq-list {
  border-top: 1px solid var(--border);
  margin-top: 24px;
}
.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 4px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  transition: color var(--transition);
  background: transparent;
  width: 100%;
  text-align: left;
}
.faq-q:hover {
  color: var(--primary);
}
.faq-q .faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 1px solid var(--border);
  position: relative;
  flex-shrink: 0;
  transition: background var(--transition), border-color var(--transition);
}
.faq-q .faq-icon::before,
.faq-q .faq-icon::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 10px;
  height: 2px;
  background: var(--primary);
  transform: translate(-50%, -50%);
  border-radius: 2px;
  transition: transform var(--transition);
}
.faq-q .faq-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}
.faq-item.open .faq-icon::after {
  transform: translate(-50%, -50%) rotate(0deg);
}
.faq-item .faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.faq-item .faq-a-inner {
  padding: 0 16px 20px 4px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-sub);
  background: var(--bg-main);
  border-radius: 8px;
  padding: 14px 18px;
  margin-bottom: 16px;
}
.faq-item.open .faq-a {
  max-height: 500px;
}

/* ===== CTA 横幅 ===== */
.cta-banner {
  margin-top: 40px;
  background: var(--dark);
  border-radius: var(--radius-card);
  padding: 40px;
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: '';
  position: absolute;
  right: -60px;
  top: -60px;
  width: 180px;
  height: 180px;
  border: 2px solid rgba(168,217,160,0.25);
  border-radius: 50%;
}
.cta-banner::after {
  content: '';
  position: absolute;
  right: -20px;
  top: -20px;
  width: 100px;
  height: 100px;
  border: 1px solid rgba(168,217,160,0.15);
  border-radius: 50%;
}
.cta-banner .cta-title {
  font-size: 22px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 8px;
  position: relative;
  z-index: 2;
}
.cta-banner .cta-desc {
  font-size: 15px;
  color: rgba(255,255,255,0.75);
  margin-bottom: 20px;
  position: relative;
  z-index: 2;
  line-height: 1.7;
}
.cta-banner .btn-accent {
  position: relative;
  z-index: 2;
}
.cta-banner .btn-outline {
  position: relative;
  z-index: 2;
  margin-left: 12px;
  border-color: rgba(255,255,255,0.4);
  color: #fff;
}
.cta-banner .btn-outline:hover {
  border-color: var(--wave);
  color: var(--wave);
}

/* ===== 右侧边栏 ===== */
.side-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 24px;
  margin-bottom: 20px;
  box-shadow: var(--shadow);
}
.side-card .side-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 8px;
}
.side-card .side-title::before {
  content: '';
  width: 4px;
  height: 16px;
  background: var(--accent);
  border-radius: 2px;
}
.side-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.side-list a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 0;
  font-size: 14px;
  color: var(--text-sub);
  border-bottom: 1px solid rgba(220, 228, 224, 0.5);
  transition: all var(--transition);
}
.side-list a:last-child {
  border-bottom: none;
}
.side-list a::before {
  content: '';
  width: 5px;
  height: 5px;
  border: 1px solid var(--primary);
  border-radius: 50%;
  flex-shrink: 0;
  transition: background var(--transition);
}
.side-list a:hover {
  color: var(--primary);
  padding-left: 4px;
}
.side-list a:hover::before {
  background: var(--primary);
}
.contact-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.contact-line {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-sub);
}
.contact-line .ico {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  background: rgba(37, 122, 109, 0.08);
  border: 1px solid rgba(37, 122, 109, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 15px;
}
.contact-line strong {
  color: var(--text-main);
  font-weight: 600;
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: -0.01em;
}
.contact-line span {
  display: block;
  font-size: 12px;
  color: var(--text-sub);
  line-height: 1.4;
}
.download-btn {
  margin-top: 16px;
}
.side-card .note {
  font-size: 13px;
  color: var(--text-sub);
  margin-top: 12px;
  text-align: center;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--dark);
  color: rgba(255,255,255,0.7);
  font-size: 14px;
}
.footer-quote {
  border-bottom: 1px solid rgba(255,255,255,0.1);
  padding: 32px 0;
}
.footer-quote .container {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer-quote .quote-text {
  font-size: 16px;
  font-weight: 500;
  color: rgba(255,255,255,0.85);
  line-height: 1.7;
  max-width: 780px;
  padding-left: 18px;
  border-left: 3px solid var(--wave);
}
.footer-quote .quote-author {
  font-family: var(--font-mono);
  font-size: 14px;
  color: rgba(255,255,255,0.5);
  padding-left: 18px;
}
.footer-quote .quote-author::before {
  content: '—— ';
}
.footer-main {
  padding: 40px 0 24px;
}
.footer-grid {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
}
@media (max-width: 1023px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 767px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}
.footer-brand .logo {
  margin-bottom: 14px;
}
.footer-brand .logo-text {
  color: #fff;
}
.footer-brand .logo-sub {
  color: rgba(255,255,255,0.5);
}
.footer-brand p {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  line-height: 1.7;
  max-width: 280px;
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 14px;
  letter-spacing: 0.02em;
}
.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer-col ul a {
  color: rgba(255,255,255,0.6);
  font-size: 14px;
  transition: color var(--transition);
}
.footer-col ul a:hover {
  color: var(--wave);
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 20px 0;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}
.footer-bottom .container {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
}
.footer-bottom a {
  color: rgba(255,255,255,0.5);
}
.footer-bottom a:hover {
  color: var(--wave);
}

/* ===== 底部转化条 ===== */
.bottom-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #fff;
  border-top: 1px solid var(--border);
  box-shadow: 0 -4px 16px rgba(12,29,25,0.06);
  padding: 0 24px;
  height: 64px;
  transition: transform var(--transition);
}
.bottom-bar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: 100%;
}
.bottom-bar .bar-text {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-main);
}
.bottom-bar .bar-text span {
  color: var(--text-sub);
  font-weight: 400;
  font-size: 14px;
}
.bottom-bar .bar-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}
.bottom-bar .bar-phone {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 6px;
}
.bottom-bar .bar-phone span {
  font-size: 16px;
}
body {
  padding-bottom: 64px;
}
@media (max-width: 767px) {
  .bottom-bar {
    height: 56px;
    background: var(--dark);
    border-top: none;
    box-shadow: 0 -4px 16px rgba(0,0,0,0.2);
  }
  .bottom-bar .bar-text {
    color: rgba(255,255,255,0.85);
    font-size: 14px;
  }
  .bottom-bar .bar-text span {
    display: none;
  }
  .bottom-bar .bar-phone {
    display: none;
  }
  .bottom-bar .btn-accent {
    padding: 10px 20px;
    font-size: 14px;
    min-width: 120px;
  }
  body {
    padding-bottom: 56px;
  }
}

/* ===== 响应式导航 ===== */
@media (max-width: 1023px) {
  .header-search {
    display: none;
  }
  .header-hot {
    display: none;
  }
  .header-phone {
    font-size: 14px;
  }
  .nav-toggle {
    display: flex;
  }
  .channel-row {
    display: none;
    position: absolute;
    top: var(--header-brand-h);
    left: 0;
    width: 100%;
    background: #fff;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-hover);
    max-height: calc(100vh - var(--header-brand-h));
    overflow-y: auto;
  }
  .channel-row.open {
    display: block;
  }
  .channel-nav {
    flex-direction: column;
    align-items: flex-start;
    padding: 12px 24px;
    height: auto;
  }
  .channel-nav li a {
    display: block;
    width: 100%;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
    border-bottom-color: var(--border);
    font-size: 16px;
  }
  .channel-nav li a:hover {
    background: transparent;
    color: var(--primary);
  }
  .channel-nav li a.active {
    color: var(--primary);
    border-bottom-color: var(--border);
    position: relative;
  }
  .channel-nav li a.active::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -1px;
    width: 32px;
    height: 2px;
    background: var(--accent);
  }
  .mobile-search, .mobile-hot, .mobile-phone {
    display: flex;
    padding: 12px 24px;
    border-bottom: 1px solid var(--border);
  }
  .mobile-search input {
    flex: 1;
    height: 36px;
    border: 1px solid var(--border);
    border-radius: var(--radius-input);
    padding: 0 12px;
    font-size: 14px;
    outline: none;
    background: var(--bg-main);
  }
  .mobile-search input:focus {
    border-color: var(--primary-hover);
  }
  .mobile-hot {
    gap: 16px;
    font-size: 14px;
    flex-wrap: wrap;
  }
  .mobile-hot a {
    color: var(--text-sub);
    border-bottom: 1px dashed var(--border);
    padding-bottom: 2px;
  }
  .mobile-hot a:hover {
    color: var(--primary);
  }
  .mobile-phone {
    padding-bottom: 20px;
  }
  .mobile-phone a {
    font-family: var(--font-mono);
    font-weight: 700;
    color: var(--primary);
    font-size: 16px;
  }
  .site-header.scrolled .channel-row {
    display: none;
  }
  .site-header.scrolled .channel-row.open {
    display: block;
  }
  .footer-grid {
    grid-template-columns: 2fr 1fr;
  }
}

@media (max-width: 767px) {
  .brand-row {
    height: 48px;
    padding: 0 16px;
    gap: 12px;
  }
  .logo-mark {
    width: 28px;
    height: 28px;
  }
  .logo-text {
    font-size: 18px;
  }
  .logo-sub {
    display: none;
  }
  .header-phone {
    display: none;
  }
  .channel-row {
    top: 48px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .footer-quote {
    padding: 24px 0;
  }
  .footer-quote .quote-text {
    font-size: 14px;
  }
  .cta-banner {
    padding: 28px 20px;
  }
  .cta-banner .cta-title {
    font-size: 19px;
  }
  .cta-banner .btn {
    width: 100%;
    margin-bottom: 10px;
  }
  .cta-banner .btn-outline {
    margin-left: 0;
  }
  .hero-inner h1 {
    font-size: 30px;
  }
  .category-hero {
    padding: 48px 0;
  }
  .content-block h2 {
    font-size: 22px;
  }
  .site-header.scrolled .brand-row {
    height: 48px;
  }
}

/* ===== 动效 ===== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html {
    scroll-behavior: auto;
  }
}

/* roulang page: article */
:root{
  --primary:#0F4C45;
  --primary-hover:#257A6D;
  --accent:#E8823A;
  --accent-dark:#1B1206;
  --bg:#F4F6F8;
  --bg-alt:#EEF3F1;
  --card-bg:#FFFFFF;
  --dark:#0C1D19;
  --text:#17211E;
  --text-muted:#5E6E77;
  --text-disable:#9DAEAA;
  --border:#DCE4E0;
  --border-strong:#B8CCC5;
  --success:#2E7D5B;
  --warning:#C77A29;
  --decor:#A8D9A0;
  --font-sans:'Noto Sans SC','HarmonyOS Sans SC','Microsoft YaHei',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --font-mono:'JetBrains Mono','Roboto Mono','Consolas','Courier New',monospace;
  --radius-lg:16px;
  --radius:12px;
  --radius-sm:8px;
  --shadow:0 1px 2px rgba(12,29,25,.04),0 4px 16px rgba(12,29,25,.06);
  --shadow-hover:0 8px 24px rgba(12,29,25,.10);
  --transition:.2s ease;
  --container:1200px;
  --header-brand-h:52px;
  --header-channel-h:44px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.7;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color var(--transition)}
button{font-family:inherit;border:none;cursor:pointer;background:none}
input,textarea{font-family:inherit}
ul,ol{list-style:none}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
.container-narrow{max-width:820px;margin:0 auto;padding:0 24px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:12px 24px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;line-height:1.2;
  transition:transform var(--transition),box-shadow var(--transition),background-color var(--transition);
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-hover);transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.btn-accent{background:var(--accent);color:var(--accent-dark)}
.btn-accent:hover{background:#f0924d;transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.btn-outline{background:transparent;border:1px solid var(--border-strong);color:var(--primary)}
.btn-outline:hover{border-color:var(--primary);background:rgba(15,76,69,.04)}

/* ====== Header ====== */
.site-header{
  position:sticky;top:0;z-index:100;
  background:var(--card-bg);
  border-bottom:1px solid transparent;
  transition:box-shadow var(--transition),border-color var(--transition);
}
.site-header.scrolled{
  border-color:var(--border);
  box-shadow:0 4px 20px rgba(12,29,25,.06);
}
.brand-row{
  height:var(--header-brand-h);
  display:flex;align-items:center;
  gap:24px;padding:0 24px;
  max-width:var(--container);margin:0 auto;
  transition:height var(--transition);
}
.site-header.scrolled .brand-row{height:44px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{width:32px;height:32px;flex-shrink:0}
.logo-text{
  font-size:20px;font-weight:900;color:var(--primary);
  letter-spacing:.5px;line-height:1.2;
}
.logo-sub{font-size:12px;font-weight:500;color:var(--text-muted);margin-left:2px;display:inline-block;vertical-align:baseline}
.header-search{
  flex:1;display:flex;align-items:center;
  max-width:360px;margin-left:auto;
}
.header-search input{
  flex:1;height:40px;padding:0 14px;
  border:1px solid var(--border);border-right:none;
  border-radius:var(--radius-sm) 0 0 var(--radius-sm);
  background:var(--bg);font-size:14px;color:var(--text);
  outline:none;transition:border-color var(--transition),box-shadow var(--transition);
}
.header-search input:focus{border-color:var(--primary-hover);background:#fff;box-shadow:0 0 0 3px rgba(37,122,109,.12)}
.header-search button{
  height:40px;padding:0 16px;
  background:var(--primary);color:#fff;
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  font-size:14px;font-weight:600;
  transition:background-color var(--transition);
}
.header-search button:hover{background:var(--primary-hover)}
.header-hot{display:flex;align-items:center;gap:12px;flex-shrink:0}
.header-hot a{
  font-size:13px;color:var(--text-muted);
  padding:4px 8px;border-radius:999px;
  transition:background-color var(--transition),color var(--transition);
}
.header-hot a:hover{background:var(--bg-alt);color:var(--primary)}
.header-phone{
  display:flex;align-items:center;gap:6px;
  font-family:var(--font-mono);font-size:14px;font-weight:700;
  color:var(--primary);padding:6px 12px;
  border:1px solid var(--border);border-radius:999px;
  flex-shrink:0;transition:border-color var(--transition),color var(--transition);
}
.header-phone:hover{border-color:var(--primary);background:rgba(15,76,69,.03)}
.nav-toggle{display:none;flex-direction:column;gap:5px;padding:8px;flex-shrink:0}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--primary);border-radius:2px;transition:transform var(--transition),opacity 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)}

.channel-row{
  border-top:1px solid var(--border);
  background:var(--card-bg);
  transition:box-shadow var(--transition);
}
.site-header.scrolled .channel-row{
  box-shadow:0 2px 12px rgba(12,29,25,.04);
}
.channel-row > .channel-nav{
  max-width:var(--container);margin:0 auto;
  height:var(--header-channel-h);
  display:flex;align-items:center;gap:4px;
  padding:0 24px;
  transition:height var(--transition);
}
.site-header.scrolled .channel-row > .channel-nav{height:40px}
.channel-nav li{
  position:relative;
}
.channel-nav a{
  display:block;padding:8px 14px;
  font-size:15px;font-weight:500;color:var(--text-muted);
  border-radius:var(--radius-sm);
  transition:color var(--transition),background-color var(--transition);
}
.channel-nav a:hover{color:var(--primary);background:var(--bg-alt)}
.channel-nav a.active{color:var(--primary);font-weight:700}
.channel-nav a.active::after{
  content:'';position:absolute;left:14px;right:14px;bottom:-2px;
  height:3px;background:var(--accent);border-radius:2px;
}
.mobile-search,.mobile-hot,.mobile-phone{display:none}

/* ====== Breadcrumb ====== */
.breadcrumb{
  padding:16px 0 0;
  font-family:var(--font-mono);font-size:12px;
  color:var(--text-muted);
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
}
.breadcrumb a{color:var(--text-muted);transition:color var(--transition)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:var(--text-disable)}
.breadcrumb .current{color:var(--primary);font-weight:600;max-width:220px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* ====== Article Layout ====== */
.article-section{
  padding:16px 0 80px;
  background:var(--bg);
}
.article-wrapper{
  background:var(--card-bg);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow);
  padding:48px 56px 56px;
  margin-top:16px;
}
.article-head{margin-bottom:32px;border-bottom:1px solid var(--border);padding-bottom:32px}
.article-head h1{
  font-size:32px;line-height:1.4;font-weight:900;
  color:var(--text);letter-spacing:.5px;
  margin-bottom:16px;
}
.article-meta{
  display:flex;align-items:center;gap:20px;flex-wrap:wrap;
  font-family:var(--font-mono);font-size:13px;color:var(--text-muted);
}
.article-meta .meta-cat{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:999px;
  background:var(--bg-alt);color:var(--primary);
  font-weight:600;font-family:var(--font-sans);font-size:13px;
}
.article-meta .meta-date{display:flex;align-items:center;gap:6px}
.article-meta .meta-date::before{content:'';display:inline-block;width:4px;height:4px;border-radius:50%;background:var(--accent)}

.article-body{
  font-size:17px;line-height:1.8;color:var(--text);
}
.article-body > * + *{margin-top:24px}
.article-body p{margin-bottom:0}
.article-body h2,.article-body h3,.article-body h4{
  color:var(--text);font-weight:700;margin-top:40px;line-height:1.4;
}
.article-body h2{font-size:24px;border-left:4px solid var(--primary);padding-left:16px}
.article-body h3{font-size:19px;color:var(--primary)}
.article-body h4{font-size:17px}
.article-body img{
  border-radius:var(--radius-sm);
  border:1px solid var(--border);
  margin:16px 0;
}
.article-body blockquote{
  border-left:4px solid var(--primary);
  background:var(--bg-alt);
  padding:16px 24px;
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:var(--text-muted);
  font-style:normal;
}
.article-body blockquote p{margin-bottom:0}
.article-body code{
  font-family:var(--font-mono);
  font-size:14px;
  background:var(--bg);
  padding:2px 6px;
  border-radius:4px;
  color:var(--primary);
}
.article-body pre{
  background:var(--bg);
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  padding:20px;
  overflow-x:auto;
  font-family:var(--font-mono);
  font-size:14px;
}
.article-body pre code{background:none;padding:0}
.article-body ul,.article-body ol{padding-left:20px}
.article-body ul{list-style:square}
.article-body ol{list-style:decimal}
.article-body li{margin:6px 0}
.article-body a{color:var(--primary-hover);font-weight:500;border-bottom:1px solid transparent;transition:border-color var(--transition)}
.article-body a:hover{border-bottom-color:var(--primary-hover)}

.article-empty{
  text-align:center;padding:60px 20px;
}
.article-empty .empty-icon{
  width:64px;height:64px;margin:0 auto 20px;
  border-radius:50%;background:var(--bg-alt);
  display:flex;align-items:center;justify-content:center;
  font-size:28px;color:var(--primary);
}
.article-empty p{
  font-size:18px;font-weight:600;color:var(--text);
  margin-bottom:24px;
}
.article-empty .btn{
  margin:0 4px;
}

/* ====== Tags ====== */
.article-tags{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  margin-top:40px;padding-top:32px;
  border-top:1px solid var(--border);
}
.article-tags .tags-label{
  font-size:13px;font-weight:600;color:var(--text-muted);
  margin-right:4px;
}
.tag-chip{
  display:inline-flex;align-items:center;
  padding:6px 14px;border-radius:999px;
  background:var(--bg);border:1px solid var(--border);
  font-size:13px;color:var(--text-muted);
  transition:border-color var(--transition),color var(--transition),background-color var(--transition);
}
.tag-chip:hover{border-color:var(--primary-hover);color:var(--primary);background:var(--bg-alt)}

/* ====== Pagination ====== */
.article-pager{
  display:flex;gap:16px;margin-top:32px;
}
.pager-item{
  flex:1;display:flex;flex-direction:column;
  background:var(--bg);border:1px solid var(--border);
  border-radius:var(--radius);padding:16px 20px;
  transition:border-color var(--transition),box-shadow var(--transition);
}
.pager-item:hover{border-color:var(--primary-hover);box-shadow:var(--shadow)}
.pager-label{
  font-family:var(--font-mono);font-size:12px;
  color:var(--text-disable);margin-bottom:6px;
}
.pager-item a{
  font-size:15px;font-weight:600;color:var(--text);
  line-height:1.4;
  transition:color var(--transition);
}
.pager-item a:hover{color:var(--primary)}

/* ====== Related ====== */
.related-section{
  margin-top:48px;
}
.related-header{
  display:flex;align-items:center;justify-content:space-between;
  margin-bottom:24px;
}
.related-header h2{
  font-size:22px;font-weight:800;color:var(--text);
  position:relative;padding-left:16px;
}
.related-header h2::before{
  content:'';position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:4px;height:22px;border-radius:2px;background:var(--accent);
}
.related-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:20px;
}
.related-card{
  background:var(--card-bg);
  border:1px solid var(--border);
  border-radius:var(--radius);
  overflow:hidden;
  transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);
}
.related-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-hover);
  border-color:var(--primary-hover);
}
.related-card .card-cover{
  aspect-ratio:16/9;overflow:hidden;
}
.related-card .card-cover img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .4s ease;
}
.related-card:hover .card-cover img{transform:scale(1.02)}
.related-card .card-body{padding:20px}
.related-card .card-cat{
  font-family:var(--font-mono);font-size:12px;
  color:var(--accent);font-weight:600;
  margin-bottom:8px;display:block;
}
.related-card h3{font-size:16px;font-weight:700;line-height:1.5;margin-bottom:8px}
.related-card h3 a{transition:color var(--transition)}
.related-card h3 a:hover{color:var(--primary)}
.related-card p{
  font-size:14px;color:var(--text-muted);line-height:1.6;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
  overflow:hidden;
}
.related-card .card-link{
  display:inline-flex;align-items:center;gap:4px;
  font-size:14px;font-weight:600;color:var(--primary);
  margin-top:12px;
}
.related-card .card-link::after{content:'→';transition:transform var(--transition)}
.related-card:hover .card-link::after{transform:translateX(4px)}

/* ====== CTA ====== */
.cta-section{
  background:var(--dark);
  padding:72px 0;
  position:relative;overflow:hidden;
}
.cta-section::before{
  content:'';position:absolute;top:0;right:0;
  width:400px;height:200px;
  background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 400 200' fill='none'%3E%3Cpath d='M0 160 C40 40 80 180 120 100 S200 60 240 120 S320 180 360 80 L400 60' stroke='%23A8D9A0' stroke-width='2' stroke-opacity='.2'/%3E%3C/svg%3E") no-repeat right top;
  background-size:contain;pointer-events:none;
}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:48px;position:relative;z-index:1;
}
.cta-left h2{
  color:#fff;font-size:28px;font-weight:800;
  margin-bottom:12px;
}
.cta-left p{
  color:rgba(255,255,255,.7);font-size:16px;
  max-width:440px;
}
.cta-right{
  display:flex;align-items:center;gap:16px;flex-shrink:0;
}
.cta-right .btn-accent{font-size:16px;padding:14px 32px}
.cta-phone{
  color:#fff;font-family:var(--font-mono);
  font-size:18px;font-weight:700;
  padding:12px 20px;border:1px solid rgba(255,255,255,.3);
  border-radius:var(--radius-sm);
  transition:border-color var(--transition),background-color var(--transition);
}
.cta-phone:hover{border-color:var(--accent);background:rgba(255,255,255,.05)}

/* ====== Footer ====== */
.site-footer{
  background:var(--dark);
  color:rgba(255,255,255,.72);
  font-size:15px;
}
.footer-quote{
  border-bottom:1px solid rgba(255,255,255,.08);
  padding:40px 0;
}
.footer-quote-inner{
  max-width:var(--container);margin:0 auto;padding:0 24px;
  display:flex;gap:24px;align-items:flex-start;
}
.footer-quote-mark{
  font-size:48px;font-weight:900;
  background:linear-gradient(180deg,var(--accent),#f5a35f);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  line-height:1;flex-shrink:0;
}
.footer-quote p{
  font-size:16px;line-height:1.7;
  color:rgba(255,255,255,.85);
  max-width:720px;
  margin-top:8px;
}
.footer-quote-author{
  display:block;
  font-family:var(--font-mono);font-size:13px;
  color:var(--accent);
  margin-top:12px;
}
.footer-main{
  max-width:var(--container);margin:0 auto;
  padding:48px 24px;
  display:grid;grid-template-columns:1.2fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer-brand .footer-logo{
  display:inline-flex;align-items:center;gap:8px;
  font-size:22px;font-weight:900;color:#fff;
  margin-bottom:16px;
}
.footer-brand .footer-logo .logo-sub{color:var(--accent)}
.footer-brand p{
  font-size:14px;line-height:1.7;
  color:rgba(255,255,255,.6);
  max-width:280px;
}
.footer-col h4{
  color:#fff;font-size:15px;font-weight:600;
  margin-bottom:16px;
  position:relative;padding-bottom:8px;
}
.footer-col h4::after{
  content:'';position:absolute;left:0;bottom:0;
  width:24px;height:2px;background:var(--accent);
  border-radius:1px;
}
.footer-col a,.footer-col span{
  display:block;font-size:14px;
  color:rgba(255,255,255,.6);
  margin-bottom:10px;
  transition:color var(--transition);
}
.footer-col a:hover{color:#fff}
.footer-info .footer-tel{
  font-family:var(--font-mono);font-size:18px;
  color:#fff;font-weight:700;
  display:block;margin-bottom:8px;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:20px 0;
}
.footer-bottom-inner{
  max-width:var(--container);margin:0 auto;padding:0 24px;
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;font-size:13px;color:rgba(255,255,255,.45);
  flex-wrap:wrap;
}
.footer-bottom .footer-tech{
  font-family:var(--font-mono);
  color:rgba(255,255,255,.5);
}

/* ====== Responsive ====== */
@media (max-width:1023px){
  .header-search{max-width:280px}
  .header-hot{display:none}
  .brand-row{gap:16px;padding:0 16px}
  .channel-row > .channel-nav{padding:0 16px}
  .header-phone{display:none}
  .nav-toggle{display:flex}
  .channel-row{
    display:none;
    position:fixed;top:52px;left:0;right:0;bottom:0;
    background:var(--card-bg);
    overflow-y:auto;
    border-top:1px solid var(--border);
    padding:16px 0;
    z-index:99;
  }
  .channel-row.open{display:block}
  .channel-row > .channel-nav{
    flex-direction:column;height:auto;
    align-items:stretch;padding:0 16px;
    gap:4px;
  }
  .channel-nav a{
    padding:12px 16px;font-size:16px;
    border-radius:var(--radius-sm);
  }
  .channel-nav a.active::after{display:none}
  .channel-nav a.active{background:var(--bg-alt);border-left:4px solid var(--accent)}
  .mobile-search{display:flex;margin:16px;gap:8px}
  .mobile-search input{
    flex:1;height:44px;padding:0 14px;
    border:1px solid var(--border);border-radius:var(--radius-sm);
    background:var(--bg);font-size:14px;
  }
  .mobile-search input:focus{border-color:var(--primary-hover);outline:none}
  .mobile-hot{
    display:flex;flex-wrap:wrap;gap:8px;
    margin:0 16px 16px;
  }
  .mobile-hot a{
    font-size:13px;color:var(--text-muted);
    padding:6px 14px;border:1px solid var(--border);
    border-radius:999px;
  }
  .mobile-phone{display:block;margin:0 16px 16px}
  .mobile-phone a{
    display:flex;align-items:center;justify-content:center;
    height:44px;border-radius:var(--radius-sm);
    background:var(--primary);color:#fff;
    font-weight:600;font-family:var(--font-mono);
    font-size:16px;
  }
  .article-wrapper{padding:32px 24px 40px}
  .article-head h1{font-size:28px}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .cta-inner{flex-direction:column;text-align:center;gap:28px}
  .cta-left p{margin:0 auto}
  .footer-main{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1/-1}
}
@media (max-width:767px){
  body{padding-bottom:0}
  .brand-row{height:48px;padding:0 12px}
  .header-search{display:none}
  .channel-row{top:48px}
  .logo-text{font-size:18px}
  .logo-sub{font-size:11px}
  .nav-toggle{padding:6px}
  .logo-mark{width:28px;height:28px}
  .breadcrumb{padding:12px 0 0;font-size:11px}
  .breadcrumb .current{max-width:140px}
  .article-section{padding:8px 0 56px}
  .article-wrapper{
    padding:24px 16px 32px;
    border-radius:var(--radius);
  }
  .article-head h1{font-size:24px;line-height:1.4}
  .article-meta{gap:12px;font-size:12px}
  .article-body{font-size:16px;line-height:1.75}
  .article-body h2{font-size:20px}
  .article-body h3{font-size:17px}
  .article-body blockquote{padding:12px 16px}
  .article-body pre{padding:14px;font-size:13px}
  .article-pager{flex-direction:column;gap:12px}
  .pager-item{padding:12px 16px}
  .related-grid{grid-template-columns:1fr}
  .related-header h2{font-size:19px}
  .cta-section{padding:48px 0}
  .cta-left h2{font-size:22px}
  .cta-right{flex-direction:column;width:100%}
  .cta-right .btn-accent{width:100%;justify-content:center}
  .cta-phone{width:100%;text-align:center}
  .footer-quote-inner{flex-direction:column;gap:8px;padding:0 16px}
  .footer-quote p{font-size:14px}
  .footer-main{
    grid-template-columns:1fr;
    padding:32px 16px;
    gap:28px;
  }
  .footer-brand p{max-width:100%}
  .footer-bottom-inner{
    flex-direction:column;text-align:center;
    padding:0 16px;
  }
}
@media (max-width:380px){
  .article-head h1{font-size:22px}
  .article-body{font-size:15px}
  .related-card .card-body{padding:16px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.01ms !important;
    transition-duration:.01ms !important;
    scroll-behavior:auto !important;
  }
}

/* roulang page: category2 */
:root {
            --bg: #F4F6F8;
            --bg-alt: #EEF3F1;
            --card-bg: #FFFFFF;
            --primary: #0F4C45;
            --primary-hover: #257A6D;
            --accent: #E8823A;
            --wave: #A8D9A0;
            --dark: #0C1D19;
            --text: #17211E;
            --text-secondary: #5E6E77;
            --text-disabled: #9DAEAA;
            --border: #DCE4E0;
            --success: #2E7D5B;
            --warning: #C77A29;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-img: 8px;
            --radius-badge: 999px;
            --shadow: 0 1px 2px rgba(12, 29, 25, 0.04), 0 4px 16px rgba(12, 29, 25, 0.06);
            --shadow-hover: 0 8px 24px rgba(12, 29, 25, 0.10);
            --font-sans: "Noto Sans SC", "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif;
            --font-mono: "JetBrains Mono", "Roboto Mono", Consolas, monospace;
            --content-max: 1200px;
            --space-block: 80px;
            --space-block-mobile: 48px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        img {
            max-width: 100%;
            display: block;
        }
        ul,
        ol {
            list-style: none;
        }
        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }
        .container {
            max-width: var(--content-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        /* ===== Buttons ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: all .2s ease;
            cursor: pointer;
            border: 1px solid transparent;
        }
        .btn-primary:hover {
            background: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .btn-accent {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--accent);
            color: #1B1206;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 15px;
            transition: all .2s ease;
            cursor: pointer;
            border: 1px solid transparent;
        }
        .btn-accent:hover {
            filter: brightness(1.08);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--primary);
            border: 1px solid #B8CCC5;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: all .2s ease;
            cursor: pointer;
        }
        .btn-outline:hover {
            border-color: var(--primary-hover);
            color: var(--primary-hover);
            transform: translateY(-2px);
        }
        .btn-block {
            width: 100%;
        }
        /* ===== Header ===== */
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1000;
            transition: box-shadow .2s ease;
        }
        .site-header.sticky {
            box-shadow: 0 2px 12px rgba(12, 29, 25, .06);
        }
        .brand-row {
            display: flex;
            align-items: center;
            height: 52px;
            max-width: var(--content-max);
            margin: 0 auto;
            padding: 0 24px;
            gap: 16px;
            transition: height .2s ease;
        }
        .site-header.sticky .brand-row {
            height: 44px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-mark {
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: var(--primary);
            position: relative;
            overflow: hidden;
            flex-shrink: 0;
        }
        .logo-mark::after {
            content: "";
            position: absolute;
            inset: 5px;
            border: 2px solid var(--wave);
            border-radius: 4px;
            border-top-color: transparent;
            border-right-color: transparent;
            transform: rotate(25deg);
        }
        .logo-text {
            font-size: 20px;
            font-weight: 900;
            color: var(--primary);
            letter-spacing: .3px;
            line-height: 1.2;
        }
        .logo-sub {
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            margin-left: 2px;
        }
        .header-search {
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            padding: 0 4px 0 12px;
            height: 34px;
            width: 260px;
            transition: border-color .2s ease;
        }
        .header-search:focus-within {
            border-color: var(--primary-hover);
            box-shadow: 0 0 0 3px rgba(37, 122, 109, .12);
        }
        .header-search input {
            flex: 1;
            border: none;
            background: transparent;
            font-size: 13px;
            color: var(--text);
        }
        .header-search input::placeholder {
            color: var(--text-disabled);
        }
        .header-search button {
            background: var(--primary);
            color: #fff;
            border-radius: 6px;
            padding: 5px 14px;
            font-size: 13px;
            font-weight: 600;
            cursor: pointer;
            transition: background .2s ease;
            white-space: nowrap;
        }
        .header-search button:hover {
            background: var(--primary-hover);
        }
        .header-hot {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-left: auto;
            font-size: 13px;
            color: var(--text-secondary);
        }
        .header-hot a {
            transition: color .2s ease;
        }
        .header-hot a:hover {
            color: var(--primary);
        }
        .header-phone {
            display: flex;
            align-items: center;
            gap: 5px;
            font-family: var(--font-mono);
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            padding: 6px 12px;
            border-left: 1px solid var(--border);
            white-space: nowrap;
        }
        .header-phone:hover {
            color: var(--accent);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 4px;
            width: 32px;
            height: 32px;
            align-items: center;
            justify-content: center;
            border-radius: 6px;
            cursor: pointer;
        }
        .nav-toggle span {
            width: 18px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: transform .2s ease, opacity .2s ease;
        }
        .channel-row {
            background: #fff;
            border-top: 1px solid var(--border);
        }
        .channel-nav {
            display: flex;
            align-items: center;
            max-width: var(--content-max);
            margin: 0 auto;
            padding: 0 24px;
            height: 44px;
            gap: 4px;
            transition: height .2s ease;
        }
        .site-header.sticky .channel-nav {
            height: 40px;
        }
        .channel-nav li a {
            display: block;
            padding: 0 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            line-height: 44px;
            border-bottom: 2px solid transparent;
            transition: color .2s ease, border-color .2s ease;
        }
        .channel-nav li a:hover {
            color: var(--primary-hover);
        }
        .channel-nav li a.active {
            color: var(--primary);
            font-weight: 700;
            border-bottom-color: var(--accent);
        }
        .mobile-search,
        .mobile-hot,
        .mobile-phone {
            display: none;
        }
        /* ===== Page Banner ===== */
        .page-banner {
            background: var(--dark);
            background-image: linear-gradient(120deg, rgba(12, 29, 25, .92), rgba(15, 76, 69, .88)), url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            padding: 64px 0 56px;
            position: relative;
            overflow: hidden;
            color: #fff;
        }
        .page-banner::after {
            content: "";
            position: absolute;
            top: 0;
            right: -80px;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            border: 2px solid rgba(168, 217, 160, .15);
            transform: translateY(-40%);
            pointer-events: none;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-family: var(--font-mono);
            color: rgba(255, 255, 255, .7);
            margin-bottom: 20px;
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, .7);
            transition: color .2s ease;
        }
        .breadcrumb a:hover {
            color: var(--wave);
        }
        .breadcrumb .current {
            color: var(--wave);
            font-weight: 600;
        }
        .page-banner h1 {
            font-size: 34px;
            font-weight: 900;
            letter-spacing: .5px;
            line-height: 1.3;
            margin-bottom: 12px;
        }
        .page-banner p {
            font-size: 17px;
            color: rgba(255, 255, 255, .85);
            max-width: 560px;
            line-height: 1.7;
        }
        /* ===== Main Layout ===== */
        .page-main {
            display: grid;
            grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
            gap: 32px;
            padding: 56px 24px 72px;
        }
        .main-col {
            min-width: 0;
        }
        .side-col {
            min-width: 0;
        }
        /* ===== Content Blocks ===== */
        .block {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            padding: 36px;
            box-shadow: var(--shadow);
            margin-bottom: 28px;
        }
        .block h2 {
            font-size: 24px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 18px;
            position: relative;
            padding-left: 18px;
        }
        .block h2::before {
            content: "";
            position: absolute;
            left: 0;
            top: 5px;
            bottom: 5px;
            width: 5px;
            border-radius: 3px;
            background: var(--accent);
        }
        .block p {
            color: var(--text-secondary);
            margin-bottom: 16px;
            line-height: 1.85;
        }
        .block img {
            border-radius: var(--radius-img);
            margin-top: 18px;
            border: 1px solid var(--border);
        }
        /* ===== Process Steps ===== */
        .process-steps {
            margin-top: 16px;
        }
        .process-step {
            display: flex;
            gap: 20px;
            position: relative;
            padding-bottom: 28px;
        }
        .process-step:last-child {
            padding-bottom: 0;
        }
        .process-step::before {
            content: "";
            position: absolute;
            left: 20px;
            top: 42px;
            bottom: 0;
            width: 2px;
            background: var(--border);
        }
        .process-step:last-child::before {
            display: none;
        }
        .step-index {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-family: var(--font-mono);
            font-size: 14px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            position: relative;
            z-index: 1;
            border: 3px solid var(--bg-alt);
            box-shadow: 0 0 0 2px var(--primary);
        }
        .process-step .step-content {
            flex: 1;
        }
        .process-step .step-content h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 6px;
        }
        .process-step .step-content p {
            font-size: 14px;
            margin-bottom: 0;
            line-height: 1.7;
        }
        /* ===== Industry Tags ===== */
        .industry-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
            margin-top: 10px;
        }
        .industry-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 14px 16px;
            background: var(--bg-alt);
            border-radius: 10px;
            border-left: 4px solid var(--primary);
        }
        .industry-item .industry-icon {
            font-size: 20px;
            flex-shrink: 0;
        }
        .industry-item h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.4;
        }
        .industry-item p {
            font-size: 13px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.5;
        }
        /* ===== FAQ ===== */
        .faq-item {
            border-bottom: 1px solid var(--border);
            padding: 18px 0;
        }
        .faq-item:first-child {
            border-top: 1px solid var(--border);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            width: 100%;
            text-align: left;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.5;
        }
        .faq-question .faq-icon {
            width: 26px;
            height: 26px;
            border-radius: 50%;
            border: 1.5px solid var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: transform .25s ease;
        }
        .faq-question .faq-icon::after {
            content: "+";
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .3s ease, padding .3s ease;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.75;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-top: 12px;
        }
        /* ===== Sidebar ===== */
        .side-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            padding: 24px;
            box-shadow: var(--shadow);
            margin-bottom: 24px;
        }
        .side-card h3 {
            font-size: 17px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--bg-alt);
        }
        .side-links li {
            margin-bottom: 10px;
        }
        .side-links a {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text);
            font-size: 15px;
            padding: 8px 12px;
            border-radius: 8px;
            transition: background .2s ease, color .2s ease;
        }
        .side-links a:hover {
            background: var(--bg-alt);
            color: var(--primary-hover);
        }
        .side-links a .link-arrow {
            margin-left: auto;
            color: var(--text-disabled);
            font-family: var(--font-mono);
            font-size: 13px;
        }
        .contact-info {
            margin-bottom: 16px;
        }
        .contact-info li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            margin-bottom: 12px;
            font-size: 14px;
            color: var(--text-secondary);
        }
        .contact-info li .label {
            font-family: var(--font-mono);
            font-size: 12px;
            color: var(--text-disabled);
            min-width: 32px;
        }
        .side-form label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
            margin-top: 14px;
        }
        .side-form input {
            width: 100%;
            height: 44px;
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            padding: 0 14px;
            font-size: 14px;
            background: var(--bg);
            transition: border-color .2s ease, box-shadow .2s ease;
        }
        .side-form input:focus {
            border-color: var(--primary-hover);
            box-shadow: 0 0 0 3px rgba(37, 122, 109, .12);
            background: #fff;
        }
        .side-form .btn-accent {
            margin-top: 18px;
        }
        .side-form-success {
            background: var(--bg-alt);
            border: 1px solid var(--success);
            color: var(--success);
            border-radius: var(--radius-btn);
            padding: 14px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 10px;
            line-height: 1.6;
        }
        .download-buttons {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .download-buttons .btn-outline {
            font-size: 14px;
            padding: 10px 16px;
        }
        /* ===== Quote Strip ===== */
        .quote-strip {
            background: var(--dark);
            padding: 52px 0;
            margin-top: 8px;
        }
        .quote-inner {
            max-width: 800px;
        }
        .quote-strip blockquote {
            font-size: 18px;
            line-height: 1.75;
            color: rgba(255, 255, 255, .92);
            border-left: 4px solid var(--wave);
            padding-left: 24px;
            margin-bottom: 14px;
        }
        .quote-strip cite {
            display: block;
            text-align: right;
            font-style: normal;
            font-size: 14px;
            color: rgba(255, 255, 255, .65);
            font-family: var(--font-mono);
        }
        /* ===== Footer ===== */
        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, .8);
        }
        .footer-main {
            padding: 56px 0 40px;
            border-top: 1px solid rgba(255, 255, 255, .08);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
        }
        .footer-brand .logo-text {
            color: #fff;
        }
        .footer-brand .logo-sub {
            color: rgba(255, 255, 255, .6);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.75;
            color: rgba(255, 255, 255, .6);
            margin-top: 16px;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul a {
            font-size: 14px;
            color: rgba(255, 255, 255, .6);
            transition: color .2s ease;
        }
        .footer-col ul a:hover {
            color: var(--wave);
        }
        .footer-contact p {
            font-size: 14px;
            color: rgba(255, 255, 255, .6);
            margin-bottom: 8px;
            font-family: var(--font-mono);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding: 20px 0;
        }
        .footer-bottom .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, .45);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, .45);
        }
        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .header-search {
                width: 200px;
            }
            .header-hot {
                display: none;
            }
            .page-main {
                grid-template-columns: 1fr;
                padding: 40px 24px 56px;
            }
            .side-col {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .side-card {
                margin-bottom: 0;
            }
        }
        @media (max-width: 767px) {
            .brand-row {
                height: 52px;
                padding: 0 16px;
                gap: 10px;
            }
            .site-header.sticky .brand-row {
                height: 52px;
            }
            .header-search {
                display: none;
            }
            .header-phone {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .channel-row {
                display: none;
                border-top: 1px solid var(--border);
                box-shadow: var(--shadow);
            }
            .channel-row.open {
                display: block;
                position: absolute;
                top: 52px;
                left: 0;
                right: 0;
                background: #fff;
                max-height: calc(100vh - 52px);
                overflow-y: auto;
            }
            .channel-nav {
                flex-direction: column;
                align-items: stretch;
                height: auto;
                padding: 8px 16px;
            }
            .channel-nav li a {
                line-height: 44px;
                border-bottom: 1px solid var(--border);
                border-left: 3px solid transparent;
            }
            .channel-nav li a.active {
                border-left-color: var(--accent);
                border-bottom-color: var(--border);
            }
            .mobile-search {
                display: block;
                padding: 12px 16px 4px;
            }
            .mobile-search input {
                width: 100%;
                height: 40px;
                border: 1px solid var(--border);
                border-radius: var(--radius-btn);
                padding: 0 14px;
                font-size: 14px;
            }
            .mobile-hot {
                display: flex;
                flex-wrap: wrap;
                gap: 12px;
                padding: 12px 16px;
                font-size: 14px;
                color: var(--text-secondary);
            }
            .mobile-hot a {
                color: var(--primary);
            }
            .mobile-phone {
                display: block;
                padding: 8px 16px 20px;
            }
            .mobile-phone a {
                display: flex;
                align-items: center;
                justify-content: center;
                gap: 8px;
                background: var(--primary);
                color: #fff;
                border-radius: var(--radius-btn);
                padding: 12px;
                font-weight: 600;
            }
            .page-banner {
                padding: 44px 0 40px;
            }
            .page-banner h1 {
                font-size: 26px;
            }
            .page-banner p {
                font-size: 15px;
            }
            .block {
                padding: 24px 20px;
            }
            .block h2 {
                font-size: 20px;
            }
            .industry-list {
                grid-template-columns: 1fr;
            }
            .side-col {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom .container {
                flex-direction: column;
                text-align: center;
            }
            .quote-strip blockquote {
                font-size: 16px;
                padding-left: 16px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .page-main {
                padding: 32px 16px 48px;
            }
            .brand-row {
                padding: 0 12px;
            }
            .logo-text {
                font-size: 18px;
            }
            .logo-sub {
                font-size: 12px;
            }
            .header-phone {
                display: none;
            }
        }
        @media (prefers-reduced-motion: reduce) {
            * {
                transition: none !important;
                animation: none !important;
            }
        }

/* roulang page: category3 */
:root {
            --bg-main: #F4F6F8;
            --bg-secondary: #EEF3F1;
            --bg-card: #FFFFFF;
            --primary: #0F4C45;
            --primary-hover: #257A6D;
            --accent: #E8823A;
            --accent-dark: #1B1206;
            --wave: #A8D9A0;
            --dark: #0C1D19;
            --text-main: #17211E;
            --text-sub: #5E6E77;
            --border: #DCE4E0;
            --radius: 12px;
            --radius-sm: 8px;
            --shadow: 0 1px 2px rgba(12, 29, 25, 0.04), 0 4px 16px rgba(12, 29, 25, 0.06);
            --shadow-hover: 0 8px 24px rgba(12, 29, 25, 0.10);
            --font-sans: "Noto Sans SC", "HarmonyOS Sans SC", "Microsoft YaHei", system-ui, sans-serif;
            --font-mono: "JetBrains Mono", "Roboto Mono", Consolas, monospace;
            --transition: 0.2s ease;
        }

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

        body {
            margin: 0;
            font-family: var(--font-sans);
            background: var(--bg-main);
            color: var(--text-main);
            font-size: 16px;
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button {
            font-family: inherit;
            cursor: pointer;
        }

        input,
        textarea,
        select {
            font-family: inherit;
            outline: none;
        }

        ul,
        ol {
            margin: 0;
            padding: 0;
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0;
            line-height: 1.3;
        }

        p {
            margin: 0 0 1em;
        }

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

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

        .mono {
            font-family: var(--font-mono);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 44px;
            padding: 0 24px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            border: 1px solid transparent;
            transition: transform var(--transition), box-shadow var(--transition), background-color var(--transition), border-color var(--transition);
            white-space: nowrap;
        }

        .btn-block {
            display: flex;
            width: 100%;
        }

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

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

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

        .btn-accent:hover {
            background: #f0924d;
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }

        .btn-outline {
            background: transparent;
            border-color: #B8CCC5;
            color: var(--primary);
        }

        .btn-outline:hover {
            border-color: var(--primary-hover);
            color: var(--primary-hover);
            transform: translateY(-2px);
        }

        /* ========== Header ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--bg-main);
            border-bottom: 1px solid var(--border);
            transition: background var(--transition), box-shadow var(--transition);
        }

        .site-header.scrolled {
            background: #FFFFFF;
            box-shadow: var(--shadow);
        }

        .brand-row {
            display: flex;
            align-items: center;
            gap: 16px;
            height: 52px;
            padding: 0 24px;
            max-width: 1200px;
            margin: 0 auto;
            transition: height var(--transition);
        }

        .site-header.scrolled .brand-row {
            height: 44px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .logo-mark {
            width: 28px;
            height: 28px;
            border-radius: 6px;
            background: linear-gradient(135deg, var(--primary), var(--primary-hover));
            position: relative;
            display: inline-block;
            flex-shrink: 0;
        }

        .logo-mark::after {
            content: "";
            position: absolute;
            inset: 6px;
            border: 2px solid var(--wave);
            border-radius: 3px;
        }

        .logo-text {
            font-weight: 900;
            font-size: 20px;
            color: var(--primary);
            letter-spacing: 0.02em;
            transition: color var(--transition);
        }

        .logo:hover .logo-text {
            color: var(--primary-hover);
        }

        .logo-sub {
            font-size: 13px;
            font-weight: 500;
            color: var(--text-sub);
            margin-left: 2px;
        }

        .header-search {
            display: flex;
            flex: 1;
            max-width: 360px;
            margin-left: auto;
        }

        .header-search input {
            width: 100%;
            height: 36px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm) 0 0 var(--radius-sm);
            padding: 0 12px;
            font-size: 14px;
            background: #fff;
            border-right: none;
        }

        .header-search input:focus {
            border-color: var(--primary-hover);
            box-shadow: 0 0 0 3px rgba(37, 122, 109, 0.15);
        }

        .header-search button {
            height: 36px;
            padding: 0 16px;
            border: 1px solid var(--primary);
            background: var(--primary);
            color: #fff;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-size: 14px;
            transition: background-color var(--transition);
        }

        .header-search button:hover {
            background: var(--primary-hover);
        }

        .header-hot {
            display: flex;
            gap: 10px;
            font-size: 13px;
            color: var(--text-sub);
            flex-shrink: 0;
        }

        .header-hot a {
            color: var(--text-sub);
        }

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

        .header-phone {
            display: flex;
            align-items: center;
            gap: 4px;
            font-weight: 600;
            color: var(--primary);
            flex-shrink: 0;
            font-family: var(--font-mono);
            font-size: 15px;
        }

        .header-phone:hover {
            color: var(--primary-hover);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: transparent;
            border: 0;
            padding: 8px;
        }

        .nav-toggle span {
            width: 22px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: transform var(--transition), opacity var(--transition);
        }

        .channel-row {
            border-top: 1px solid var(--border);
            background: var(--bg-main);
        }

        .site-header.scrolled .channel-row {
            background: #fff;
        }

        .channel-nav {
            display: flex;
            gap: 4px;
            height: 44px;
            align-items: center;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            transition: height var(--transition);
        }

        .site-header.scrolled .channel-nav {
            height: 40px;
        }

        .channel-nav a {
            display: block;
            padding: 0 16px;
            height: 44px;
            line-height: 44px;
            font-size: 15px;
            color: var(--text-main);
            border-bottom: 2px solid transparent;
            transition: color var(--transition), border-color var(--transition), height var(--transition), line-height var(--transition);
            white-space: nowrap;
        }

        .site-header.scrolled .channel-nav a {
            height: 40px;
            line-height: 40px;
        }

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

        .channel-nav a.active {
            color: var(--primary);
            font-weight: 700;
            border-bottom-color: var(--accent);
        }

        .mobile-search,
        .mobile-hot,
        .mobile-phone {
            display: none;
        }

        /* ========== Page Hero ========== */
        .page-hero {
            background: var(--dark);
            position: relative;
            overflow: hidden;
            padding: 72px 0;
            color: #fff;
        }

        .page-hero-inner {
            position: relative;
            z-index: 2;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .page-hero .breadcrumb {
            margin-bottom: 24px;
            font-family: var(--font-mono);
            font-size: 13px;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .page-hero .breadcrumb a {
            color: rgba(255, 255, 255, 0.6);
        }

        .page-hero .breadcrumb a:hover {
            color: var(--wave);
        }

        .page-hero .breadcrumb .sep {
            color: rgba(255, 255, 255, 0.35);
        }

        .page-hero .breadcrumb .current {
            color: var(--wave);
            font-weight: 600;
        }

        .page-hero h1 {
            font-size: 38px;
            font-weight: 900;
            margin-bottom: 14px;
            max-width: 720px;
            line-height: 1.25;
        }

        .page-hero p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.75);
            max-width: 660px;
            margin: 0;
            line-height: 1.7;
        }

        .hero-wave {
            position: absolute;
            right: -40px;
            bottom: 0;
            width: 65%;
            height: 140px;
            pointer-events: none;
        }

        /* ========== Category Body ========== */
        .category-body {
            padding: 64px 0 80px;
            background: var(--bg-main);
        }

        .category-grid {
            display: grid;
            grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
            gap: 48px;
            align-items: start;
        }

        .content-main {
            display: flex;
            flex-direction: column;
            gap: 56px;
            min-width: 0;
        }

        .content-block h2 {
            font-size: 26px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 20px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--border);
            position: relative;
        }

        .content-block h2::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 60px;
            height: 2px;
            background: var(--accent);
        }

        .content-block p {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-main);
            margin-bottom: 1em;
        }

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

        /* ========== Scope Grid ========== */
        .scope-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-top: 8px;
        }

        .scope-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 20px;
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
        }

        .scope-item:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-hover);
        }

        .scope-item h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 6px;
        }

        .scope-item p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.65;
            margin: 0;
        }

        /* ========== Flow Steps ========== */
        .flow-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .flow-step {
            background: var(--bg-secondary);
            border-radius: var(--radius);
            padding: 20px;
            border: 1px solid var(--border);
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
        }

        .flow-step:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-hover);
        }

        .flow-step .step-num {
            display: inline-block;
            font-family: var(--font-mono);
            font-weight: 700;
            font-size: 24px;
            color: var(--accent);
            margin-bottom: 8px;
        }

        .flow-step h3 {
            font-size: 15px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 6px;
        }

        .flow-step p {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.6;
            margin: 0;
        }

        /* ========== Content Image ========== */
        .content-image {
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            margin-bottom: 16px;
            background: var(--bg-card);
            box-shadow: var(--shadow);
        }

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

        .content-image .caption {
            padding: 12px 16px;
            font-size: 13px;
            color: var(--text-sub);
            border-top: 1px solid var(--border);
            font-family: var(--font-mono);
        }

        /* ========== Table ========== */
        .table-wrap {
            overflow-x: auto;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            background: var(--bg-card);
            box-shadow: var(--shadow);
        }

        .table-wrap table {
            width: 100%;
            border-collapse: collapse;
            min-width: 560px;
            font-size: 14px;
        }

        .table-wrap th {
            background: var(--bg-secondary);
            font-size: 13px;
            color: var(--primary);
            text-align: left;
            padding: 12px 16px;
            border-bottom: 1px solid var(--border);
            font-family: var(--font-mono);
            font-weight: 700;
        }

        .table-wrap td {
            padding: 12px 16px;
            border-bottom: 1px solid var(--border);
            color: var(--text-main);
            font-family: var(--font-mono);
            font-size: 13px;
        }

        .table-wrap tr:last-child td {
            border-bottom: none;
        }

        .table-wrap tr:hover td {
            background: #FAFCFB;
        }

        /* ========== FAQ ========== */
        .faq-item {
            border-bottom: 1px solid var(--border);
        }

        .faq-item:first-child {
            border-top: 1px solid var(--border);
        }

        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            padding: 20px 0;
            width: 100%;
            background: transparent;
            border: 0;
            text-align: left;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            cursor: pointer;
            transition: color var(--transition);
        }

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

        .faq-icon {
            position: relative;
            width: 18px;
            height: 18px;
            flex-shrink: 0;
            transition: transform 0.3s ease;
        }

        .faq-icon::before,
        .faq-icon::after {
            content: "";
            position: absolute;
            background: var(--primary);
            border-radius: 1px;
            transition: opacity var(--transition);
        }

        .faq-icon::before {
            top: 8px;
            left: 0;
            right: 0;
            height: 2px;
        }

        .faq-icon::after {
            left: 8px;
            top: 0;
            bottom: 0;
            width: 2px;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }

        .faq-answer-inner {
            padding: 0 0 20px;
            font-size: 15px;
            line-height: 1.75;
            color: var(--text-sub);
        }

        .faq-answer-inner p {
            margin-bottom: 0;
            font-size: 15px;
            color: var(--text-sub);
        }

        /* ========== Sidebar ========== */
        .content-side {
            position: sticky;
            top: 120px;
            display: flex;
            flex-direction: column;
            gap: 24px;
            min-width: 0;
        }

        .side-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow);
            transition: box-shadow var(--transition), border-color var(--transition);
        }

        .side-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-hover);
        }

        .side-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border);
        }

        .side-links a {
            display: block;
            padding: 10px 0;
            color: var(--text-main);
            border-bottom: 1px dashed var(--border);
            font-size: 14px;
            transition: color var(--transition), padding-left var(--transition);
        }

        .side-links a:hover {
            color: var(--primary-hover);
            padding-left: 4px;
        }

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

        .side-contact .phone-large {
            font-family: var(--font-mono);
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .side-contact p {
            font-size: 14px;
            color: var(--text-sub);
            margin: 0 0 8px;
            line-height: 1.6;
        }

        .side-contact .btn {
            margin-top: 12px;
        }

        .side-card .btn-outline {
            margin-bottom: 10px;
        }

        .side-card .btn-outline:last-child {
            margin-bottom: 0;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 64px 0 0;
        }

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

        .footer-brand .logo-text {
            font-size: 24px;
            font-weight: 900;
            color: #fff;
        }

        .footer-brand .logo-sub {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
        }

        .footer-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            max-width: 400px;
            line-height: 1.7;
            margin: 16px 0 0;
        }

        .footer-quote {
            font-size: 13px;
            color: var(--wave);
            opacity: 0.7;
            border-left: 3px solid var(--wave);
            padding-left: 10px;
            margin: 20px 0 0;
            font-family: var(--font-mono);
        }

        .footer-col h4 {
            font-size: 15px;
            color: #fff;
            margin-bottom: 14px;
            font-weight: 700;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul a,
        .footer-col ul li {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            font-style: normal;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0;
        }

        .footer-bottom p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
            margin: 0;
            text-align: center;
            font-family: var(--font-mono);
        }

        /* ========== Responsive ========== */
        @media (max-width: 1023px) {
            .category-grid {
                gap: 32px;
            }

            .flow-steps {
                grid-template-columns: 1fr 1fr;
            }

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

            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 767px) {
            .brand-row,
            .channel-nav {
                padding-left: 16px;
                padding-right: 16px;
            }

            .header-search,
            .header-hot,
            .header-phone {
                display: none;
            }

            .nav-toggle {
                display: flex;
                margin-left: auto;
            }

            .site-header.scrolled .brand-row {
                height: 52px;
            }

            .channel-row {
                display: none;
                position: fixed;
                top: 52px;
                left: 0;
                right: 0;
                background: #FFFFFF;
                box-shadow: var(--shadow-hover);
                padding: 16px;
                z-index: 99;
                max-height: calc(100vh - 52px);
                overflow-y: auto;
                border-top: 1px solid var(--border);
            }

            .channel-row.open {
                display: block;
            }

            .channel-nav {
                flex-direction: column;
                height: auto;
                gap: 0;
                padding: 0;
            }

            .site-header.scrolled .channel-nav {
                height: auto;
            }

            .channel-nav a,
            .site-header.scrolled .channel-nav a {
                height: auto;
                line-height: 1.5;
                padding: 14px 0;
                border-bottom: 1px solid var(--border);
                border-left: 2px solid transparent;
            }

            .channel-nav a.active {
                border-left-color: var(--accent);
                border-bottom-color: var(--border);
                background: var(--bg-secondary);
                padding-left: 12px;
            }

            .mobile-search,
            .mobile-hot,
            .mobile-phone {
                display: flex;
            }

            .mobile-search {
                margin: 16px 0 12px;
            }

            .mobile-search input {
                width: 100%;
                height: 40px;
                border: 1px solid var(--border);
                border-radius: var(--radius-sm);
                padding: 0 12px;
                font-size: 14px;
                background: var(--bg-main);
            }

            .mobile-search input:focus {
                border-color: var(--primary-hover);
                box-shadow: 0 0 0 3px rgba(37, 122, 109, 0.15);
            }

            .mobile-hot {
                flex-wrap: wrap;
                gap: 12px;
                margin-bottom: 12px;
                font-size: 14px;
            }

            .mobile-hot a {
                color: var(--text-sub);
            }

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

            .mobile-phone {
                padding-top: 12px;
                border-top: 1px solid var(--border);
            }

            .mobile-phone a {
                color: var(--primary);
                font-weight: 700;
                font-family: var(--font-mono);
            }

            .page-hero {
                padding: 56px 0;
            }

            .page-hero h1 {
                font-size: 30px;
            }

            .page-hero p {
                font-size: 15px;
            }

            .category-body {
                padding: 48px 0;
            }

            .category-grid {
                grid-template-columns: 1fr;
                gap: 48px;
            }

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

            .flow-steps {
                grid-template-columns: 1fr;
            }

            .content-side {
                position: static;
            }

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

            .footer-brand {
                grid-column: auto;
            }

            .footer-desc {
                max-width: 100%;
            }

            .footer-quote {
                margin-top: 16px;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                transition-duration: 0.01ms !important;
                animation-duration: 0.01ms !important;
            }
        }

/* roulang page: category4 */
:root{
  --bg-main:#F4F6F8;
  --bg-sub:#EEF3F1;
  --bg-card:#FFFFFF;
  --primary:#0F4C45;
  --primary-hover:#257A6D;
  --accent:#E8823A;
  --accent-dark:#1B1206;
  --wave-line:#A8D9A0;
  --dark-bg:#0C1D19;
  --text-main:#17211E;
  --text-sub:#5E6E77;
  --text-faint:#9DAEAA;
  --border:#DCE4E0;
  --success:#2E7D5B;
  --warn:#C77A29;
  --radius-card:12px;
  --radius-btn:8px;
  --radius-lg:16px;
  --shadow-rest:0 1px 2px rgba(12,29,25,0.04),0 4px 16px rgba(12,29,25,0.06);
  --shadow-hover:0 8px 24px rgba(12,29,25,0.10);
  --trans:0.2s ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:"Noto Sans SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text-main);
  background:var(--bg-main);
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
ul,ol{list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}
.mono{font-family:"JetBrains Mono","Roboto Mono","Consolas",monospace;}
/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:12px 24px;border-radius:var(--radius-btn);border:none;
  font-size:16px;font-weight:600;cursor:pointer;transition:var(--trans);
  line-height:1.4;gap:8px;
}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-hover);transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.btn-accent{background:var(--accent);color:var(--accent-dark);}
.btn-accent:hover{background:#f2924f;transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.btn-outline{background:transparent;border:1px solid #B8CCC5;color:var(--primary);}
.btn-outline:hover{border-color:var(--primary-hover);color:var(--primary-hover);transform:translateY(-2px);}
@media(max-width:767px){
  .btn{padding:10px 18px;font-size:15px;}
}
/* ===== 导航 ===== */
.site-header{
  position:sticky;top:0;z-index:100;
  background:var(--bg-main);border-bottom:1px solid var(--border);
}
.brand-row{
  display:flex;align-items:center;gap:16px;
  height:52px;padding:0 24px;
  max-width:1200px;margin:0 auto;
}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:32px;height:32px;border-radius:6px;
  background:var(--primary);position:relative;
  overflow:hidden;flex-shrink:0;
}
.logo-mark::after{
  content:"";position:absolute;left:-4px;bottom:-4px;
  width:28px;height:28px;border:3px solid var(--wave-line);
  border-radius:50%;opacity:0.6;
}
.logo-text{font-size:20px;font-weight:900;color:var(--text-main);letter-spacing:-0.02em;}
.logo-text .logo-sub{font-size:14px;font-weight:500;color:var(--text-sub);margin-left:2px;}
.header-search{display:flex;flex:1;max-width:240px;margin-left:auto;background:#fff;border:1px solid var(--border);border-radius:var(--radius-btn);overflow:hidden;height:36px;transition:border-color var(--trans);}
.header-search:focus-within{border-color:var(--primary-hover);}
.header-search input{flex:1;border:none;outline:none;padding:0 12px;font-size:13px;color:var(--text-main);background:transparent;}
.header-search button{background:var(--primary);border:none;color:#fff;padding:0 14px;font-size:13px;cursor:pointer;transition:background var(--trans);}
.header-search button:hover{background:var(--primary-hover);}
.header-hot{display:flex;gap:12px;font-size:13px;white-space:nowrap;}
.header-hot a{color:var(--text-sub);transition:color var(--trans);}
.header-hot a:hover{color:var(--primary-hover);}
.header-phone{font-size:14px;font-weight:600;color:var(--text-main);display:flex;align-items:center;gap:4px;white-space:nowrap;}
.header-phone span{color:var(--accent);}
.nav-toggle{display:none;background:none;border:none;cursor:pointer;flex-direction:column;gap:5px;padding:8px;}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--text-main);transition:var(--trans);}
.channel-row{border-top:1px solid var(--border);background:rgba(244,246,248,0.9);}
.channel-nav{display:flex;gap:0;max-width:1200px;margin:0 auto;padding:0 24px;height:44px;}
.channel-nav li{display:flex;}
.channel-nav li a{
  display:flex;align-items:center;padding:0 18px;font-size:15px;font-weight:500;
  color:var(--text-sub);position:relative;transition:color var(--trans);border-bottom:3px solid transparent;
}
.channel-nav li a:hover{color:var(--primary);}
.channel-nav li a.active{color:var(--primary);font-weight:700;border-bottom-color:var(--accent);}
.mobile-search,.mobile-hot,.mobile-phone{display:none;}
@media(min-width:1024px){
  .site-header.is-scrolled .brand-row{height:44px;}
  .site-header.is-scrolled .channel-row{height:40px;}
  .site-header.is-scrolled .channel-nav{height:40px;}
  .site-header.is-scrolled .brand-row{transition:height var(--trans);}
  .site-header.is-scrolled .channel-row{transition:height var(--trans);}
  .site-header.is-scrolled .channel-nav{transition:height var(--trans);}
}
@media(max-width:1023px){
  .header-search{max-width:none;}
  .header-hot,.header-phone{display:none;}
  .nav-toggle{display:flex;margin-left:auto;}
  .channel-row{
    display:none;background:#fff;border-top:1px solid var(--border);
    box-shadow:var(--shadow-rest);height:auto;padding:8px 0;
  }
  .channel-row.open{display:block;}
  .channel-nav{flex-direction:column;height:auto;padding:8px 24px;gap:4px;}
  .channel-nav li a{height:40px;border-bottom:none;border-left:3px solid transparent;padding:0 12px;}
  .channel-nav li a.active{border-left-color:var(--accent);}
  .mobile-search{display:block;padding:8px 24px;}
  .mobile-search input{width:100%;height:36px;border:1px solid var(--border);border-radius:var(--radius-btn);padding:0 12px;font-size:14px;}
  .mobile-hot{display:flex;gap:12px;padding:8px 24px;font-size:13px;flex-wrap:wrap;}
  .mobile-hot a{color:var(--text-sub);}
  .mobile-phone{display:block;padding:8px 24px 4px;}
  .mobile-phone a{color:var(--primary);font-weight:700;font-size:15px;}
}
/* ===== 横幅页头 ===== */
.page-banner{
  background:var(--dark-bg);position:relative;overflow:hidden;padding:56px 0;
}
.page-banner::before{
  content:"";position:absolute;right:-60px;top:-80px;
  width:320px;height:220px;
  background:radial-gradient(circle at 60% 20%,rgba(168,217,160,0.22),transparent 70%);
  pointer-events:none;
}
.page-banner::after{
  content:"";position:absolute;left:-80px;bottom:-120px;
  width:300px;height:200px;
  background:radial-gradient(circle,rgba(168,217,160,0.15),transparent 70%);
  pointer-events:none;
}
.page-banner .container{position:relative;z-index:1;}
.page-banner-crumb{font-family:"JetBrains Mono","Roboto Mono",Consolas,monospace;font-size:13px;color:rgba(255,255,255,0.6);margin-bottom:12px;display:flex;align-items:center;gap:8px;}
.page-banner-crumb a{color:rgba(255,255,255,0.6);transition:color var(--trans);}
.page-banner-crumb a:hover{color:#fff;}
.page-banner-crumb .sep{opacity:0.5;}
.page-banner-crumb .cur{color:#fff;font-weight:600;}
.page-banner h1{font-size:40px;font-weight:900;color:#fff;line-height:1.3;letter-spacing:-0.02em;margin-bottom:12px;}
.page-banner p{font-size:16px;color:rgba(255,255,255,0.8);max-width:720px;line-height:1.8;}
@media(max-width:767px){
  .page-banner{padding:36px 0;}
  .page-banner h1{font-size:28px;}
  .page-banner p{font-size:14px;}
}
/* ===== 主区布局 ===== */
.content-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 340px;
  gap:32px;padding:48px 0 64px;
}
.page-main{min-width:0;}
.sidebar{display:flex;flex-direction:column;gap:24px;}
@media(max-width:1023px){
  .content-layout{grid-template-columns:1fr;padding:32px 0 48px;}
  .sidebar{order:-1;}
}
/* ===== 内容区板块 ===== */
.content-block{
  background:var(--bg-card);border-radius:var(--radius-card);
  border:1px solid var(--border);box-shadow:var(--shadow-rest);
  padding:32px;margin-bottom:24px;
}
.content-block h2{
  font-size:24px;font-weight:800;color:var(--text-main);
  margin-bottom:16px;position:relative;padding-left:14px;
  line-height:1.4;
}
.content-block h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  background:var(--accent);border-radius:2px;
}
.content-block h3{font-size:18px;font-weight:700;color:var(--text-main);margin:24px 0 12px;}
.content-block p{font-size:15px;line-height:1.9;color:var(--text-sub);margin-bottom:16px;}
.content-block img{border-radius:var(--radius-card);margin:16px 0;border:1px solid var(--border);width:100%;height:auto;object-fit:cover;}
.lead-text{font-size:15px;color:var(--text-sub);line-height:1.9;margin-bottom:20px;}
.lead-text strong{color:var(--text-main);font-weight:700;}
/* 要点列表 */
.check-list{margin:16px 0;}
.check-list li{
  position:relative;padding-left:28px;margin-bottom:10px;
  font-size:15px;color:var(--text-sub);line-height:1.7;
}
.check-list li::before{
  content:"";position:absolute;left:0;top:8px;width:16px;height:16px;
  border:2px solid var(--primary-hover);border-radius:50%;
  background:rgba(168,217,160,0.2);
}
.check-list li::after{
  content:"";position:absolute;left:6px;top:12px;width:4px;height:8px;
  border-right:2px solid var(--primary-hover);
  border-bottom:2px solid var(--primary-hover);
  transform:rotate(45deg);
}
/* 标准列表 */
.std-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:20px 0;}
.std-card{
  background:var(--bg-sub);border-radius:var(--radius-card);
  border:1px solid var(--border);padding:16px;
}
.std-card .std-no{font-family:"JetBrains Mono",Consolas,monospace;font-size:14px;font-weight:700;color:var(--primary);display:block;margin-bottom:4px;}
.std-card .std-name{font-size:14px;color:var(--text-sub);line-height:1.6;}
@media(max-width:767px){
  .std-grid{grid-template-columns:1fr;}
  .content-block{padding:24px;}
}
/* 测试项目表 */
.test-table-wrap{overflow-x:auto;margin:16px 0;border:1px solid var(--border);border-radius:var(--radius-card);}
.test-table{width:100%;border-collapse:collapse;min-width:560px;font-size:14px;}
.test-table th{
  background:var(--dark-bg);color:#fff;text-align:left;
  padding:12px 16px;font-weight:600;font-size:13px;
  white-space:nowrap;font-family:"JetBrains Mono",Consolas,monospace;
}
.test-table td{
  padding:12px 16px;border-bottom:1px solid var(--border);color:var(--text-sub);
  font-family:"JetBrains Mono",Consolas,monospace;font-size:13px;
}
.test-table tr:last-child td{border-bottom:none;}
.test-table tr:hover td{background:var(--bg-sub);}
.test-table td:first-child{color:var(--text-main);font-weight:600;font-family:"Noto Sans SC","Microsoft YaHei",sans-serif;}
/* 流程轨道 */
.process-steps{display:flex;flex-wrap:wrap;gap:16px;margin:24px 0;}
.process-step{
  flex:1;min-width:140px;position:relative;background:var(--bg-sub);
  border-radius:var(--radius-card);padding:20px 16px;
  border:1px solid var(--border);transition:var(--trans);
  cursor:default;
}
.process-step:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);}
.process-step .step-no{
  font-family:"JetBrains Mono",Consolas,monospace;font-size:12px;
  color:var(--accent);font-weight:700;letter-spacing:0.5px;display:block;margin-bottom:6px;
}
.process-step .step-title{font-size:16px;font-weight:700;color:var(--text-main);margin-bottom:6px;}
.process-step .step-desc{font-size:13px;color:var(--text-sub);line-height:1.6;}
.process-step .step-dot{
  width:10px;height:10px;border-radius:50%;background:var(--primary);
  position:absolute;top:-5px;right:12px;box-shadow:0 0 0 3px rgba(15,76,69,0.15);
}
@media(max-width:767px){
  .process-steps{flex-direction:column;}
  .process-step{min-width:auto;}
}
/* FAQ */
.faq-list{border-top:1px solid var(--border);}
.faq-item{border-bottom:1px solid var(--border);}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 0;font-size:16px;font-weight:600;color:var(--text-main);
  cursor:pointer;transition:color var(--trans);background:none;width:100%;border:none;text-align:left;
}
.faq-q:hover{color:var(--primary-hover);}
.faq-q .faq-icon{position:relative;width:18px;height:18px;flex-shrink:0;}
.faq-q .faq-icon::before,.faq-q .faq-icon::after{
  content:"";position:absolute;background:var(--text-sub);border-radius:2px;
  top:50%;left:50%;transform:translate(-50%,-50%);transition:var(--trans);
}
.faq-q .faq-icon::before{width:16px;height:2px;}
.faq-q .faq-icon::after{width:2px;height:16px;}
.faq-item.open .faq-icon::after{transform:translate(-50%,-50%) rotate(45deg);opacity:0;}
.faq-item.open .faq-icon::before{background:var(--accent);}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height 0.3s ease;
  padding:0;font-size:15px;line-height:1.7;color:var(--text-sub);
}
.faq-item.open .faq-a{max-height:240px;padding-bottom:16px;}
@media(prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto;}
}
/* ===== 侧边栏 ===== */
.side-card{
  background:var(--bg-card);border-radius:var(--radius-card);
  border:1px solid var(--border);box-shadow:var(--shadow-rest);
  padding:24px;
}
.side-card h3{
  font-size:16px;font-weight:800;color:var(--text-main);
  margin-bottom:14px;padding-bottom:10px;
  border-bottom:2px solid var(--bg-sub);
}
.side-list li{margin-bottom:4px;}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px;border-radius:8px;background:var(--bg-main);
  font-size:14px;color:var(--text-main);transition:var(--trans);
}
.side-list a:hover{background:var(--bg-sub);color:var(--primary-hover);transform:translateX(4px);}
.side-list a .arrow{color:var(--accent);font-family:"JetBrains Mono",Consolas,monospace;font-size:14px;}
.contact-card{background:var(--dark-bg);color:#fff;}
.contact-card h3{border-bottom-color:rgba(255,255,255,0.1);color:#fff;}
.contact-item{margin-bottom:14px;}
.contact-item .label{font-size:12px;color:rgba(255,255,255,0.6);margin-bottom:2px;font-family:"JetBrains Mono",Consolas,monospace;}
.contact-item .value{font-size:15px;font-weight:600;color:#fff;}
.contact-card .btn{width:100%;margin-top:6px;}
.download-btn{
  display:flex;align-items:center;gap:12px;padding:14px;border-radius:8px;
  border:1px dashed var(--border);background:var(--bg-main);
  color:var(--text-main);font-size:14px;transition:var(--trans);
  margin-bottom:10px;
}
.download-btn:hover{border-color:var(--primary-hover);color:var(--primary-hover);}
.download-btn .dl-icon{flex-shrink:0;width:28px;height:28px;border-radius:6px;background:var(--bg-sub);display:flex;align-items:center;justify-content:center;font-size:14px;}
.download-btn .dl-name{font-weight:600;}
.download-btn .dl-size{font-size:12px;color:var(--text-faint);font-family:"JetBrains Mono",Consolas,monospace;}
/* ===== 页脚 ===== */
.site-footer{background:var(--dark-bg);color:rgba(255,255,255,0.8);padding:48px 0 0;margin-top:16px;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;padding-bottom:32px;border-bottom:1px solid rgba(255,255,255,0.08);}
.footer-brand .logo .logo-text{color:#fff;}
.footer-brand .logo .logo-sub{color:rgba(255,255,255,0.5);}
.footer-brand p{font-size:14px;line-height:1.8;margin-top:14px;color:rgba(255,255,255,0.6);max-width:360px;}
.footer-col h3{font-size:15px;font-weight:700;color:#fff;margin-bottom:14px;}
.footer-col ul li{margin-bottom:8px;}
.footer-col ul li a{font-size:14px;color:rgba(255,255,255,0.6);transition:color var(--trans);}
.footer-col ul li a:hover{color:var(--accent);}
.footer-bottom{padding:20px 0;display:flex;justify-content:space-between;align-items:center;font-size:13px;color:rgba(255,255,255,0.4);flex-wrap:wrap;gap:8px;}
.footer-bottom .mono{font-family:"JetBrains Mono",Consolas,monospace;}
@media(max-width:767px){
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .footer-bottom{flex-direction:column;text-align:center;}
}
/* ===== 底部转化条 ===== */
.bottom-cta{
  display:none;position:fixed;bottom:0;left:0;right:0;z-index:90;
  background:var(--dark-bg);padding:12px 24px;
  align-items:center;justify-content:space-between;
  box-shadow:0 -4px 20px rgba(12,29,25,0.25);
}
.bottom-cta .cta-text{color:#fff;font-size:14px;font-weight:600;display:flex;align-items:center;gap:10px;}
.bottom-cta .cta-text .cta-icon{color:var(--wave-line);font-size:18px;}
.bottom-cta .btn{flex-shrink:0;padding:10px 20px;font-size:15px;}
@media(max-width:767px){
  body{padding-bottom:72px;}
  .bottom-cta{display:flex;flex:1;padding:10px 16px;gap:12px;width:100%;}
  .bottom-cta .cta-text{font-size:13px;flex:1;}
  .bottom-cta .btn{width:auto;min-width:128px;white-space:nowrap;padding:10px 16px;}
}
@media(min-width:768px){
  .bottom-cta{display:flex;width:100%;}
}
@media(min-width:1024px){
  .bottom-cta{max-width:100%;}
}
/* 强调引用 */
.quote-block{
  border-left:4px solid var(--wave-line);background:var(--bg-main);
  padding:16px 20px;border-radius:0 8px 8px 0;margin:20px 0;
  font-size:15px;color:var(--text-sub);line-height:1.9;
}