/* roulang page: index */
:root {
  --page-bg: #F5F8FA;
  --card-bg: #FFFFFF;
  --primary: #23597A;
  --primary-dark: #153F59;
  --accent: #0E8C86;
  --accent-soft: #E2F2F0;
  --ink: #1D3B4C;
  --ink-soft: #5E727E;
  --border: #E3EAF0;
  --hero-bg: #EDF3F7;
  --shadow-card: 0 1px 3px rgba(21, 52, 66, 0.05), 0 12px 32px -18px rgba(21, 52, 66, 0.18);
  --shadow-hover: 0 14px 32px -18px rgba(21, 52, 66, 0.28), 0 2px 6px rgba(21, 52, 66, 0.05);
  --radius-sm: 8px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
}
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  background: var(--page-bg);
  color: var(--ink);
  text-rendering: optimizeSpeed;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
*, *::before, *::after {
  box-sizing: border-box;
}
a {
  color: inherit;
  text-decoration: none;
  transition: color 0.25s ease, background-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
}
a:hover {
  color: var(--primary);
}
img {
  display: block;
  max-width: 100%;
  height: auto;
}
button, input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
}
.container {
  max-width: 1320px;
  padding-left: 24px;
  padding-right: 24px;
}
section[id] {
  scroll-margin-top: 96px;
}
.section {
  padding: 92px 0;
}
.section-tone {
  background: var(--hero-bg);
}
.section-head {
  margin-bottom: 48px;
}
.section-head .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 5px 14px;
  border-radius: 100px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.section-title-line {
  position: relative;
  margin: 22px 0 0;
  padding-left: 20px;
  font-size: clamp(1.75rem, 3vw, 2.6rem);
  line-height: 1.2;
  font-weight: 800;
  color: var(--primary-dark);
  letter-spacing: -0.02em;
}
.section-title-line::before {
  position: absolute;
  left: 0;
  top: 7px;
  bottom: 7px;
  width: 6px;
  border-radius: 6px;
  background: var(--accent);
  content: "";
}
.section-caption {
  max-width: 760px;
  margin: 18px 0 0;
  font-size: 16px;
  color: var(--ink-soft);
}
.btn {
  min-height: 44px;
  padding: 10px 24px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  transition: background-color 0.25s ease, border-color 0.25s ease, color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  box-shadow: 0 8px 20px -10px rgba(35, 89, 122, 0.45);
}
.btn-primary:hover,
.btn-primary:focus {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  color: #fff;
  box-shadow: 0 10px 22px -10px rgba(21, 63, 89, 0.55);
}
.btn-outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-outline:hover,
.btn-outline:focus {
  background: #F0F6FA;
  color: var(--primary-dark);
  border-color: var(--primary-dark);
}
.btn:focus,
.accordion-button:focus,
.form-control:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(14, 140, 134, 0.14);
}
.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1050;
  background: rgba(255, 255, 255, 0.98);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 14px rgba(23, 54, 71, 0.04);
}
.navbar {
  min-height: 76px;
  padding: 0;
}
.logo-brand {
  display: inline-flex;
  align-items: baseline;
  gap: 2px;
  font-size: 21px;
  font-weight: 800;
  letter-spacing: 0.01em;
  color: var(--primary);
  white-space: nowrap;
}
.logo-brand .logo-qm {
  font-size: 18px;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.01em;
}
.site-nav .nav-link {
  padding: 28px 16px;
  font-size: 15px;
  color: var(--ink);
  font-weight: 500;
  position: relative;
  white-space: nowrap;
  transition: color 0.2s ease;
}
.site-nav .nav-link:hover {
  color: var(--primary);
}
.site-nav .nav-link.active {
  color: var(--primary);
  font-weight: 700;
}
.site-nav .nav-link.active::after {
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: -1px;
  height: 3px;
  border-radius: 6px 6px 0 0;
  background: var(--accent);
  content: "";
}
.header-cta {
  margin-left: 8px;
}
.header-cta .btn {
  height: 40px;
  min-height: 40px;
  padding: 0 20px;
  border-radius: var(--radius-sm);
}
.navbar-toggler {
  border: 0;
  background: transparent;
  padding: 8px;
}
.navbar-toggler:focus {
  box-shadow: none;
  outline: none;
}
.nav-toggler-bar {
  display: block;
  width: 24px;
  height: 2px;
  margin: 5px 0;
  background: var(--primary);
  border-radius: 10px;
}
@media (max-width: 991.98px) {
  .navbar {
    min-height: 68px;
  }
  .logo-brand {
    font-size: 18px;
  }
  .logo-brand .logo-qm {
    font-size: 16px;
  }
  .navbar-collapse {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin: 0;
    padding: 16px 20px 22px;
    background: #fff;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 16px 28px -24px rgba(21, 52, 66, 0.35);
  }
  .site-nav .nav-link {
    display: block;
    padding: 14px 4px;
    border-bottom: 1px solid #EEF3F7;
  }
  .site-nav .nav-link:last-child {
    border-bottom: 0;
  }
  .site-nav .nav-link.active::after {
    left: 4px;
    right: auto;
    top: 50%;
    bottom: auto;
    width: 3px;
    height: 16px;
    transform: translateY(-50%);
    border-radius: 6px;
  }
  .header-cta {
    margin: 16px 0 0;
  }
  .header-cta .btn {
    width: 100%;
  }
}

/* Hero */
.hero {
  position: relative;
  padding: 76px 0 94px;
  background: var(--hero-bg);
  overflow: hidden;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.04fr 0.96fr;
  gap: 64px;
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  background: #fff;
  border: 1px solid var(--border);
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  border-radius: 100px;
  margin-bottom: 24px;
  box-shadow: 0 4px 16px -12px rgba(21, 52, 66, 0.25);
}
.hero-badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}
.hero h1 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.55rem);
  font-weight: 800;
  line-height: 1.12;
  color: var(--primary-dark);
  letter-spacing: -0.035em;
}
.hero h1 .accent-word {
  color: var(--accent);
}
.hero-lead {
  margin: 24px 0 30px;
  font-size: 1.12rem;
  color: var(--ink-soft);
  max-width: 560px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.hero-note {
  max-width: 540px;
  color: var(--ink-soft);
  font-size: 14px;
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin-bottom: 0;
}
.hero-note svg {
  flex: 0 0 18px;
  margin-top: 3px;
  color: var(--accent);
}
.hero-visual {
  position: relative;
}
.hero-visual-frame {
  position: relative;
  z-index: 2;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-hover);
  background: #EAF1F6;
}
.hero-visual-frame img {
  width: 100%;
  aspect-ratio: 5 / 4;
  object-fit: cover;
}
.hero-dot-bg {
  position: absolute;
  z-index: 1;
  right: -42px;
  top: -42px;
  width: 190px;
  height: 190px;
  border-radius: 30px;
  opacity: 0.28;
  background-image: url("/assets/images/backpic/back-1.png");
  background-size: cover;
  background-position: center;
  border: 8px solid rgba(255, 255, 255, 0.5);
}
.hero-float-card {
  position: absolute;
  z-index: 3;
  left: -24px;
  bottom: 26px;
  width: 220px;
  padding: 16px 18px;
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-hover);
  border: 1px solid rgba(227, 234, 240, 0.65);
}
.hero-float-title {
  font-weight: 700;
  color: var(--primary-dark);
  font-size: 15px;
  margin-bottom: 6px;
}
.hero-float-text {
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.55;
  margin: 0;
}
@media (max-width: 991.98px) {
  .hero {
    padding: 56px 0 64px;
  }
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 42px;
  }
  .hero-dot-bg {
    display: none;
  }
}
@media (max-width: 575.98px) {
  .hero-float-card {
    left: 0;
    right: 0;
    width: auto;
    margin: 0 12px;
    bottom: 12px;
  }
}

/* Stats */
.stats-section {
  padding: 0 0 10px;
  position: relative;
  z-index: 4;
  margin-top: -2px;
}
.stats-wrap {
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--hero-bg);
  padding: 52px 48px;
}
.stats-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 28px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.stat-item {
  padding: 28px 24px;
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(227, 234, 240, 0.45);
  box-shadow: 0 4px 16px -14px rgba(21, 52, 66, 0.18);
  min-height: 158px;
}
.stat-number {
  display: block;
  margin-bottom: 6px;
  color: var(--primary);
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.04em;
  font-variant-numeric: tabular-nums;
}
.stat-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 4px;
}
.stat-tip {
  font-size: 13px;
  color: var(--ink-soft);
  margin-bottom: 0;
}
@media (max-width: 991.98px) {
  .stats-wrap {
    padding: 36px 22px;
  }
  .stats-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }
}
@media (max-width: 575.98px) {
  .stats-wrap {
    border-radius: var(--radius-lg);
  }
  .stats-list {
    grid-template-columns: 1fr;
  }
  .stat-item {
    min-height: 0;
  }
}

/* News CMS section */
.news-section {
  background: var(--page-bg);
  padding-top: 78px;
}
.news-section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  margin-bottom: 40px;
}
.news-section-head .section-head {
  margin-bottom: 0;
}
.news-section-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  color: var(--primary);
  white-space: nowrap;
}
.news-section-more:hover {
  color: var(--accent);
}
.news-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}
.news-card {
  display: grid;
  grid-template-columns: 160px minmax(0, 1fr);
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(227, 234, 240, 0.75);
  box-shadow: 0 6px 20px -22px rgba(21, 52, 66, 0.35);
  overflow: hidden;
  min-height: 172px;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.news-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.news-media {
  position: relative;
  min-height: 100%;
}
.news-media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.news-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(270deg, rgba(21, 52, 66, 0.08), transparent 42%);
}
.news-body {
  padding: 22px 22px 18px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
}
.news-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 13px;
  margin-bottom: 10px;
}
.tag {
  display: inline-flex;
  align-items: center;
  padding: 3px 11px;
  min-height: 22px;
  border-radius: 100px;
  background: #EBF0F5;
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  transition: background-color 0.2s ease, color 0.2s ease;
}
.tag:hover {
  background: var(--accent-soft);
  color: var(--primary-dark);
}
.news-meta time {
  color: var(--ink-soft);
  font-size: 13px;
}
.news-title {
  font-size: 1.18rem;
  line-height: 1.45;
  font-weight: 700;
  color: var(--primary-dark);
  margin: 0 0 8px;
}
.news-title a {
  text-decoration: none;
  color: inherit;
}
.news-title a:hover,
.news-title a:focus {
  color: var(--primary);
}
.news-excerpt {
  margin: 0;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.stretched-link {
  position: static;
}
.news-empty {
  grid-column: 1 / -1;
  background: #fff;
  border: 1px dashed #C9D7E2;
  border-radius: var(--radius-lg);
  padding: 44px 20px;
  text-align: center;
  color: var(--ink-soft);
  font-size: 16px;
}
@media (max-width: 767.98px) {
  .news-grid {
    grid-template-columns: 1fr;
  }
  .news-card {
    grid-template-columns: 1fr;
  }
  .news-media {
    height: 170px;
  }
  .news-media img {
    position: absolute;
    height: 100%;
  }
  .news-section-head {
    display: block;
  }
  .news-section-more {
    margin-top: 14px;
  }
}

/* Service matrix */
.service-section {
  padding-top: 40px;
}
.service-row {
  margin-bottom: 28px;
}
.service-row:last-child {
  margin-bottom: 0;
}
.service-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid rgba(227, 234, 240, 0.65);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
  padding: 38px;
  height: 100%;
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.service-card-lg {
  justify-content: space-between;
  min-height: 420px;
}
.service-card-sm {
  justify-content: flex-start;
  padding: 30px;
  border-radius: var(--radius-lg);
}
.service-stack {
  display: grid;
  grid-template-rows: repeat(2, minmax(0, 1fr));
  gap: 24px;
  height: 100%;
}
.service-top {
  position: relative;
  z-index: 2;
}
.service-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 16px;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}
.service-card-sm .service-index {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  font-size: 14px;
  margin-bottom: 18px;
}
.service-name {
  font-size: 1.65rem;
  font-weight: 800;
  color: var(--primary-dark);
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}
.service-card-sm .service-name {
  font-size: 1.25rem;
  margin-bottom: 10px;
}
.service-desc {
  color: var(--ink-soft);
  margin-bottom: 0;
  max-width: 640px;
}
.service-list {
  list-style: none;
  margin: 28px 0 36px;
  padding: 0;
  border-top: 1px solid var(--border);
  display: grid;
  gap: 10px;
}
.service-list li {
  position: relative;
  padding: 14px 0 4px 28px;
  color: var(--ink-soft);
  font-weight: 500;
}
.service-list li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 24px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}
.service-link {
  margin-top: auto;
  color: var(--primary);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.service-link:hover,
.service-link:focus {
  color: var(--accent);
}
.service-link svg {
  transition: transform 0.25s ease;
}
.service-link:hover svg {
  transform: translateX(4px);
}
@media (max-width: 991.98px) {
  .service-card-lg {
    min-height: 0;
  }
  .service-stack {
    height: auto;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-template-rows: none;
    gap: 20px;
  }
}
@media (max-width: 767.98px) {
  .service-stack {
    grid-template-columns: 1fr;
  }
}

/* Comparison */
.compare-section {
  background: #EDF3F7;
}
.compare-heading {
  max-width: 640px;
  margin-bottom: 0;
}
.compare-lead {
  color: var(--ink-soft);
  margin: 22px 0 0;
  max-width: 560px;
}
.compare-panel {
  background: #fff;
  border: 1px solid rgba(227, 234, 240, 0.8);
  border-radius: var(--radius-xl);
  padding: 18px;
  box-shadow: var(--shadow-card);
}
.compare-label-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 16px;
  padding: 0 12px;
}
.compare-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  color: var(--ink-soft);
}
.compare-label-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}
.compare-label-dot-old {
  background: #9DAEB8;
}
.compare-label-dot-new {
  background: var(--accent);
}
.compare-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  margin-bottom: 12px;
}
.compare-row:last-child {
  margin-bottom: 6px;
}
.compare-metric {
  background: #F7FAFC;
  padding: 18px 20px;
  border-left: 3px solid var(--accent);
  font-weight: 700;
  color: var(--primary-dark);
  font-size: 15px;
  display: flex;
  align-items: center;
}
.compare-cell {
  padding: 18px 20px;
  font-size: 14px;
  line-height: 1.7;
  display: flex;
  align-items: center;
}
.compare-cell-old {
  color: #8799A5;
  background: #FBFCFD;
}
.compare-cell-new {
  background: #F2FBF9;
  color: var(--primary-dark);
  font-weight: 600;
}
.compare-grid {
  display: contents;
}
@media (max-width: 575.98px) {
  .compare-label-row {
    gap: 8px;
    padding: 0 4px;
  }
  .compare-row {
    grid-template-columns: 92px 1fr 1fr;
  }
  .compare-metric {
    grid-column: 1 / -1;
    border-left: 0;
    border-bottom: 1px solid var(--border);
    padding: 12px 14px;
    font-size: 14px;
  }
  .compare-cell {
    padding: 12px 14px;
    font-size: 13px;
  }
  .compare-label-row {
    display: none;
  }
}

/* FAQ */
.faq-panel-side {
  padding-right: 28px;
}
.faq-intro-note {
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(227, 234, 240, 0.7);
  box-shadow: var(--shadow-card);
  padding: 28px;
}
.faq-intro-note h3 {
  font-size: 1.18rem;
  margin-bottom: 16px;
  color: var(--primary-dark);
  font-weight: 700;
}
.faq-intro-note p {
  color: var(--ink-soft);
}
.faq-contact-line {
  margin-top: 22px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  font-size: 14px;
  color: var(--ink-soft);
}
.accordion-item {
  border-color: var(--border) !important;
  border-radius: var(--radius-lg) !important;
  overflow: hidden;
  margin-bottom: 14px;
  background: #fff;
  box-shadow: 0 4px 16px -20px rgba(21, 52, 66, 0.25);
}
.accordion-button {
  font-size: 1.06rem;
  font-weight: 600;
  color: var(--primary-dark);
  background: #fff;
  padding: 20px 54px 20px 22px;
  cursor: pointer;
  border: 0;
}
.accordion-button:not(.collapsed) {
  color: var(--primary);
  background: #fff;
  box-shadow: none;
}
.accordion-button:focus {
  box-shadow: 0 0 0 3px rgba(14, 140, 134, 0.12);
}
.accordion-button::after {
  content: "+";
  background-image: none;
  position: absolute;
  right: 20px;
  width: 26px;
  height: 26px;
  font-size: 20px;
  font-weight: 400;
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}
.accordion-button:not(.collapsed)::after {
  content: "−";
  color: var(--primary);
}
.accordion-body {
  padding: 0 22px 20px;
  color: var(--ink-soft);
}
@media (max-width: 991.98px) {
  .faq-panel-side {
    padding-right: 0;
    margin-bottom: 24px;
  }
}

/* CTA */
.cta-band {
  background: #fff;
}
.cta-box {
  background: var(--accent-soft);
  border: 1px solid rgba(14, 140, 134, 0.2);
  border-radius: 26px;
  padding: 48px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px;
  align-items: center;
}
.cta-box h2 {
  margin: 0 0 12px;
  font-size: clamp(1.7rem, 2.6vw, 2.4rem);
  color: var(--primary-dark);
  font-weight: 800;
  letter-spacing: -0.02em;
}
.cta-box p {
  margin: 0;
  color: var(--ink-soft);
  max-width: 760px;
}
.cta-actions {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}
@media (max-width: 991.98px) {
  .cta-box {
    grid-template-columns: 1fr;
    padding: 36px 28px;
  }
  .cta-box h2 {
    font-size: 1.7rem;
  }
}

/* Form / Contact */
.affirmation {
  background: var(--hero-bg);
}
.form-panel {
  background: #fff;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
  padding: 36px;
}
.form-panel .form-label {
  font-weight: 600;
  color: var(--primary-dark);
  margin-bottom: 10px;
  font-size: 15px;
}
.form-panel .form-control {
  min-height: 48px;
  border-radius: var(--radius-sm);
  background: #F8FAFC;
  border: 1px solid #DCE5ED;
  padding: 12px 16px;
  color: var(--ink);
  font-size: 15px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}
.form-panel .form-control:focus {
  background: #fff;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(14, 140, 134, 0.14);
}
.form-panel textarea.form-control {
  min-height: 130px;
  resize: vertical;
}
.form-check-input {
  border-color: #C7D5E0;
}
.form-check-input:checked {
  background-color: var(--accent);
  border-color: var(--accent);
}
.form-check-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(14, 140, 134, 0.12);
}
.form-note {
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.6;
}
.form-note a {
  color: var(--primary);
  text-decoration: underline;
}
.form-intro h2 {
  margin-bottom: 18px;
}
@media (max-width: 991.98px) {
  .form-panel {
    padding: 28px 24px;
    margin-top: 28px;
  }
}

/* Footer */
.footer {
  padding: 80px 0 36px;
  background: #EAF1F6;
  border-top: 1px solid var(--border);
}
.footer-brand-text {
  font-size: 21px;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 6px;
}
.footer-brand-text .logo-qm {
  color: var(--accent);
  font-size: 18px;
}
.footer-about {
  color: var(--ink-soft);
  max-width: 280px;
  font-size: 14px;
  margin-top: 18px;
}
.footer h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 20px;
}
.footer ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.footer ul li + li {
  margin-top: 12px;
}
.footer ul a {
  color: var(--ink-soft);
  font-size: 14px;
  display: inline-block;
  transition: color 0.2s ease, transform 0.2s ease;
}
.footer ul a:hover,
.footer ul a:focus {
  color: var(--primary);
  transform: translateX(3px);
}
.footer-bottom {
  border-top: 1px solid #D8E3EB;
  margin-top: 52px;
  padding-top: 26px;
  color: var(--ink-soft);
  font-size: 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
}
.footer-bottom p {
  margin: 0;
}
@media (max-width: 767.98px) {
  .footer {
    padding-top: 56px;
  }
  .footer-bottom {
    display: block;
  }
}

/* Scroll To Top */
.back-top {
  position: fixed;
  right: 22px;
  bottom: 30px;
  z-index: 1060;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.75);
  border: 1px solid #CBD9E3;
  border-radius: 12px;
  color: var(--primary);
  font-size: 22px;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.25s ease, color 0.25s ease, border-color 0.25s ease;
}
.back-top:hover,
.back-top:focus {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.back-top:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(14, 140, 134, 0.2);
}

/* roulang page: article */
:root{
  --page-bg:#F5F8FA;
  --surface:#FFFFFF;
  --primary:#23597A;
  --primary-dark:#153F59;
  --accent:#0E8C86;
  --accent-soft:#E2F2F0;
  --text-main:#1D3B4C;
  --text-sub:#5E727E;
  --line:#E3EAF0;
  --radius-btn:8px;
  --radius-card:16px;
  --radius-big:20px;
  --shadow-card:0 1px 3px rgba(21,52,66,0.05),0 12px 32px -18px rgba(21,52,66,0.18);
  --shadow-hover:0 14px 24px -12px rgba(21,52,66,0.14),0 28px 48px -24px rgba(21,52,66,0.2);
  --space-section:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--page-bg);
  color:var(--text-main);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--primary);text-decoration:none;transition:color .25s ease-out}
a:hover{color:var(--primary-dark)}
img{max-width:100%;height:auto}
p{overflow-wrap:break-word}
.container{max-width:1320px;padding-left:24px;padding-right:24px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:9px 24px;
  font-size:15px;font-weight:600;line-height:1.4;
  border-radius:var(--radius-btn);border:1px solid transparent;
  transition:all .25s ease-out;
}
.btn-primary{
  background:var(--primary);
  border-color:var(--primary);
  color:#fff;
}
.btn-primary:hover,.btn-primary:focus{
  background:var(--primary-dark) !important;
  border-color:var(--primary-dark) !important;
  color:#fff !important;
  transform:translateY(-2px);
  box-shadow:0 8px 20px -8px rgba(21,52,66,0.35);
}
.btn-outline-primary{
  background:transparent;
  border-color:var(--primary);
  color:var(--primary);
}
.btn-outline-primary:hover,.btn-outline-primary:focus{
  background:#EEF4F8 !important;
  border-color:var(--primary-dark) !important;
  color:var(--primary-dark) !important;
  transform:translateY(-2px);
}
.btn:focus-visible,.form-control:focus-visible,.form-select:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:2px;
  box-shadow:none;
}

/* Header */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
}
.site-header .navbar{
  min-height:76px;
  padding-top:0;padding-bottom:0;
  background:#fff;
}
.logo-brand{
  display:inline-flex;align-items:baseline;gap:2px;
  font-size:22px;font-weight:800;letter-spacing:-0.2px;
  color:var(--primary);
  white-space:nowrap;
}
.logo-brand:hover{color:var(--primary)}
.logo-brand .logo-qm{
  font-size:18px;font-weight:800;color:var(--accent);
}
.navbar-toggler{
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  width:46px;height:44px;
  display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  padding:0;
  background:#fff;
  box-shadow:none !important;
}
.nav-toggler-bar{
  display:block;width:22px;height:2px;border-radius:2px;
  background:var(--primary);
  transition:opacity .2s ease-out,transform .25s ease-out;
}
.navbar-toggler[aria-expanded="true"] .nav-toggler-bar:nth-child(1){transform:translateY(7px) rotate(45deg)}
.navbar-toggler[aria-expanded="true"] .nav-toggler-bar:nth-child(2){opacity:0}
.navbar-toggler[aria-expanded="true"] .nav-toggler-bar:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.site-nav{
  gap:2px;
  margin-top:10px;
}
.site-nav .nav-link{
  display:block;
  padding:10px 14px;
  font-size:16px;font-weight:500;
  color:var(--text-main);
  border-radius:8px;
  border-bottom:1px solid var(--line);
  transition:color .2s ease-out,background-color .2s ease-out;
}
.site-nav .nav-link:hover{
  color:var(--primary);
  background:#F2F7FA;
}
.site-nav .nav-link.active{
  color:var(--primary);
  font-weight:600;
  background:#EDF5F8;
}
.header-cta{
  padding:14px 0 20px;
}
.header-cta .btn{
  min-height:40px;
  padding:6px 20px;
  font-size:15px;
}
@media (min-width:992px){
  .site-nav{gap:6px;margin-top:0}
  .site-nav .nav-link{
    padding:24px 13px;
    border-radius:0;
    border-bottom:3px solid transparent;
    font-size:15px;
    font-weight:500;
    color:var(--text-sub);
  }
  .site-nav .nav-link:hover{
    color:var(--primary);
    background:transparent;
  }
  .site-nav .nav-link.active{
    color:var(--primary);
    font-weight:600;
    background:transparent;
    border-bottom-color:var(--accent);
  }
  .header-cta{padding:0 0 0 14px}
}
@media (max-width:991.98px){
  .navbar-collapse{
    background:#fff;
    margin:0 calc(-1 * var(--bs-gutter-x, 1rem));
    padding:4px 24px 18px;
    border-top:1px solid var(--line);
    margin-top:8px;
  }
  .site-nav .nav-link{border-radius:0;border-bottom:1px solid var(--line)}
}
@media (min-width:1200px){
  .site-nav .nav-link{padding-left:15px;padding-right:15px}
}

/* Section */
.section{padding-top:var(--space-section);padding-bottom:var(--space-section)}
.section-alt{background:#EFF5F8}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  color:var(--accent);font-size:14px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;
  margin-bottom:8px;
}
.section-head .eyebrow::before{
  content:"";display:inline-block;width:18px;height:3px;border-radius:99px;background:var(--accent);
}
.section-title{
  font-size:30px;font-weight:800;line-height:1.4;
  margin:0;
  letter-spacing:-0.3px;
  color:var(--text-main);
}
.section-sub{
  color:var(--text-sub);
  margin:10px 0 0;
  font-size:16px;
  max-width:760px;
}

/* Article hero */
.article-hero{
  background-color:#EDF3F7;
  background-image:radial-gradient(rgba(35,89,122,0.07) 1px,transparent 1px);
  background-size:24px 24px;
  padding:70px 0 64px;
  border-bottom:1px solid var(--line);
}
.breadcrumb-line{
  font-size:13px;
  color:var(--text-sub);
  margin-bottom:16px;
}
.breadcrumb-line a{color:var(--text-sub);padding:2px 0;display:inline-block}
.breadcrumb-line a:hover{color:var(--primary)}
.breadcrumb-line .bi{font-size:11px;margin:0 6px;opacity:.7}
.breadcrumb-line .current{color:var(--primary);font-weight:600}
.article-page-title{
  font-size:clamp(28px,4vw,46px);
  font-weight:800;
  line-height:1.4;
  letter-spacing:-0.4px;
  color:var(--text-main);
  max-width:980px;
  margin:0 0 26px;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px 28px;
  align-items:center;
  color:var(--text-sub);
  font-size:14px;
}
.article-meta .meta-tag{
  display:inline-flex;align-items:center;
  background:var(--accent-soft);
  color:var(--primary);
  font-weight:600;
  height:30px;
  padding:0 14px;
  border-radius:999px;
  font-size:13px;
}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
.article-meta .bi{color:var(--accent);opacity:.8}
.article-meta .meta-date{font-variant-numeric:tabular-nums}

/* Article body */
.article-body-section{
  padding-top:64px;
  padding-bottom:88px;
  background:var(--page-bg);
}
.article-paper{
  background:var(--surface);
  border-radius:var(--radius-big);
  box-shadow:var(--shadow-card);
  padding:clamp(28px,5vw,66px);
}
.article-content{
  font-size:17px;
  line-height:1.9;
  color:var(--text-main);
}
.article-content p{
  margin:0 0 24px;
}
.article-content h2{
  font-size:26px;
  font-weight:800;
  line-height:1.5;
  margin:48px 0 18px;
  padding-left:16px;
  border-left:4px solid var(--accent);
}
.article-content h3{
  font-size:20px;
  font-weight:700;
  margin:36px 0 14px;
}
.article-content h4{
  font-size:17px;
  font-weight:700;
  margin:28px 0 12px;
}
.article-content ul,.article-content ol{
  margin:0 0 24px;
  padding-left:26px;
}
.article-content li{
  margin-bottom:10px;
}
.article-content blockquote{
  margin:28px 0;
  background:var(--accent-soft);
  border-radius:0 12px 12px 0;
  border-left:4px solid var(--primary);
  padding:22px 26px;
  color:var(--text-main);
  font-style:normal;
}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content img{
  border-radius:var(--radius-card);
  max-width:100%;
  height:auto;
  margin:28px 0 10px;
}
.article-content figure{
  margin:32px 0;
}
.article-content figure img{
  margin:0 0 12px;
}
.article-content figcaption{
  font-size:14px;
  color:var(--text-sub);
  text-align:center;
}
.article-content table{
  width:100%;
  border-collapse:collapse;
  margin:30px 0;
  background:#fff;
  border-radius:14px;
  overflow:hidden;
  display:block;
  overflow-x:auto;
}
.article-content table thead th{
  background:#EAF1F6;
  color:var(--primary);
  font-weight:600;
  white-space:nowrap;
}
.article-content th,.article-content td{
  border:1px solid var(--line);
  text-align:left;
  padding:12px 16px;
  font-size:15px;
}
.article-content a{
  color:var(--accent);
  text-decoration:underline;
  text-underline-offset:4px;
  text-decoration-color:rgba(14,140,134,.4);
}
.article-content a:hover{color:var(--primary-dark)}

.article-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:52px;
  padding-top:30px;
  border-top:1px solid var(--line);
}
.article-bottom .btn{
  min-height:44px;
}

/* Related */
.related-section{
  background:var(--page-bg);
  padding-top:24px;
  padding-bottom:var(--space-section);
}
.related-card{
  display:flex;
  flex-direction:column;
  height:100%;
  background:#fff;
  border:none;
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .25s ease-out,box-shadow .25s ease-out;
  color:var(--text-main);
}
.related-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
  color:var(--text-main);
}
.related-thumb{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  display:block;
  background:#DFE9EF;
}
.related-body{
  padding:20px 22px 24px;
  display:flex;
  flex-direction:column;
  gap:10px;
  flex:1;
}
.related-body .tag-badge{
  align-self:flex-start;
  display:inline-flex;
  padding:2px 12px;
  height:26px;
  align-items:center;
  font-size:12px;
  font-weight:600;
  background:#EAF2F6;
  color:var(--primary);
  border-radius:999px;
}
.related-body h3{
  font-size:18px;
  font-weight:700;
  line-height:1.55;
  color:var(--text-main);
  margin:0;
}
.related-body p{
  font-size:14px;
  color:var(--text-sub);
  line-height:1.75;
  margin:0;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}

/* CTA band */
.cta-band{
  background-color:#EDF3F7;
  background-image:radial-gradient(rgba(21,63,89,0.06) 1px,transparent 1px);
  background-size:22px 22px;
  padding:88px 0;
  border-top:1px solid var(--line);
}
.cta-inner{
  background:#fff;
  border-radius:var(--radius-big);
  box-shadow:var(--shadow-card);
  padding:clamp(28px,5vw,60px);
}
.cta-title{
  font-size:28px;
  font-weight:800;
  line-height:1.5;
  margin-bottom:14px;
  color:var(--text-main);
}
.cta-desc{
  font-size:16px;
  color:var(--text-sub);
  margin:0;
  line-height:1.8;
}
.form-control{
  min-height:46px;
  border:1px solid #CFDDE6;
  border-radius:10px;
  font-size:15px;
  padding:8px 16px;
  color:var(--text-main);
}
.form-control:focus{
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(35,89,122,0.12);
  background:#fff;
}
.form-control::placeholder{color:#91A2AD}

/* Not found */
.not-found-section{
  background:#EFF5F8;
  padding-top:80px;
  padding-bottom:100px;
  min-height:60vh;
}
.not-found-card{
  background:#fff;
  border-radius:var(--radius-big);
  box-shadow:var(--shadow-card);
  padding:60px 28px;
  text-align:center;
  max-width:680px;
  margin:0 auto;
}
.not-found-mark{
  display:inline-block;
  font-size:60px;
  font-weight:800;
  color:#D5E2EA;
  line-height:1;
  margin-bottom:18px;
  letter-spacing:4px;
}

/* Footer */
.footer{
  background:var(--page-bg);
  border-top:1px solid var(--line);
  padding:64px 0 0;
  font-size:15px;
}
.footer-brand-text{
  display:flex;
  align-items:baseline;
  gap:3px;
  font-size:21px;
  font-weight:800;
  color:var(--primary);
  margin-bottom:14px;
}
.footer-brand-text .logo-qm{
  font-size:17px;
  color:var(--accent);
}
.footer-about{
  color:var(--text-sub);
  font-size:14px;
  line-height:1.8;
  max-width:340px;
}
.footer h4{
  font-size:16px;
  font-weight:700;
  color:var(--text-main);
  margin-bottom:16px;
}
.footer ul{
  list-style:none;
  padding:0;
  margin:0;
}
.footer li{
  margin-bottom:10px;
}
.footer li a{
  color:var(--text-sub);
  font-size:14px;
}
.footer li a:hover{
  color:var(--primary);
}
.footer li{
  color:var(--text-sub);
  font-size:14px;
  line-height:1.7;
}
.footer-bottom{
  border-top:1px solid var(--line);
  margin-top:36px;
  padding:22px 0 26px;
  display:flex;
  flex-wrap:wrap;
  gap:8px 30px;
  justify-content:space-between;
  color:var(--text-sub);
}
.footer-bottom p{
  margin:0;
  font-size:13px;
}
@media (max-width:991.98px){
  .footer-bottom{flex-direction:column}
}

/* Back top */
.back-top{
  position:fixed;
  right:28px;bottom:30px;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid #D4E0E7;
  background:rgba(255,255,255,.92);
  color:var(--primary);
  font-size:18px;
  display:flex;align-items:center;justify-content:center;
  z-index:1050;
  box-shadow:0 8px 18px -8px rgba(21,52,66,0.16);
  transition:all .25s ease-out;
  backdrop-filter:blur(4px);
  opacity:0;
  pointer-events:none;
}
.back-top.show{
  opacity:1;
  pointer-events:auto;
}
.back-top:hover{
  background:var(--primary);
  color:#fff;
  border-color:var(--primary);
}

@media (max-width:767px){
  :root{--space-section:64px}
  .section-title{font-size:25px}
  .section-head{margin-bottom:30px}
  .article-hero{padding:48px 0 44px}
  .article-meta{gap:8px 20px;font-size:13px}
  .article-paper{border-radius:16px}
  .article-content{font-size:16px}
  .article-content h2{font-size:22px}
  .cta-title{font-size:24px}
  .back-top{right:16px;bottom:20px}
}
@media (max-width:575px){
  .container{padding-left:18px;padding-right:18px}
  .article-page-title{font-size:26px}
  .article-hero{padding:40px 0 36px}
  .article-meta{flex-direction:column;align-items:flex-start;gap:10px}
  .related-body h3{font-size:17px}
}

/* roulang page: category1 */
:root {
  --page-bg: #F5F8FA;
  --card-bg: #FFFFFF;
  --primary: #23597A;
  --primary-hover: #153F59;
  --teal: #0E8C86;
  --teal-light: #E2F2F0;
  --text: #1D3B4C;
  --text-secondary: #5E727E;
  --line: #E3EAF0;
  --hero-bg: #EDF3F7;
  --soft-bg: #EDF3F7;
  --footer-bg: #EAF0F4;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 3px rgba(21, 52, 66, 0.05), 0 12px 32px -18px rgba(21, 52, 66, 0.18);
  --shadow-hover: 0 10px 20px rgba(21, 52, 66, 0.08), 0 22px 44px -20px rgba(21, 52, 66, 0.24);
  --transition: all .25s ease-out;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}

body {
  margin: 0;
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background-color: var(--page-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  text-decoration: none;
  color: var(--primary);
  transition: color .2s ease-out, background-color .2s ease-out, box-shadow .2s ease-out;
}

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

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

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

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

.container {
  width: 100%;
  max-width: 1320px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.section {
  padding: 96px 0;
}

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

@media (max-width: 991.98px) {
  .section {
    padding: 72px 0;
  }
}

@media (max-width: 767.98px) {
  .section {
    padding: 56px 0;
  }
  .section-head {
    margin-bottom: 28px;
  }
}

.section-head {
  max-width: 920px;
  margin-bottom: 44px;
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--teal);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--teal);
  border-radius: 2px;
}

.section-title {
  position: relative;
  margin: 0 0 14px;
  font-size: clamp(1.7rem, 3vw, 2.25rem);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: var(--primary);
  padding-left: 18px;
}

.section-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.12em;
  bottom: 0.12em;
  width: 5px;
  background: var(--teal);
  border-radius: 999px;
}

.section-desc {
  max-width: 800px;
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin: 0;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: .6rem 1.25rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  transition: background-color .22s ease-out, border-color .22s ease-out, color .22s ease-out, transform .22s ease-out, box-shadow .22s ease-out;
}

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

.btn-primary:hover,
.btn-primary:focus {
  background-color: var(--primary-hover);
  border-color: var(--primary-hover);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 8px 16px -10px rgba(35, 89, 122, 0.5);
}

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

.btn-outline-primary:hover,
.btn-outline-primary:focus {
  background: #E7F0F5;
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-1px);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1040;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  transition: box-shadow .25s ease-out;
}

.site-header.is-scrolled {
  box-shadow: 0 8px 20px -18px rgba(21, 52, 66, 0.35);
}

.site-header .navbar {
  min-height: 76px;
  padding: 0;
  background: transparent;
}

.logo-brand {
  display: inline-flex;
  align-items: center;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: -0.01em;
  white-space: nowrap;
  line-height: 1.2;
}

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

.logo-qm {
  font-size: .9em;
  font-weight: 800;
  color: var(--teal);
  margin-right: 1px;
}

.site-nav {
  gap: 6px;
}

.site-nav .nav-item {
  position: relative;
}

.site-nav .nav-link {
  display: block;
  padding: 0 15px;
  line-height: 76px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  border-bottom: 3px solid transparent;
  transition: color .22s ease-out, border-color .22s ease-out;
}

.site-nav .nav-link:hover {
  color: var(--primary);
  border-color: rgba(14, 140, 134, 0.2);
}

.site-nav .nav-link.active {
  color: var(--primary);
  font-weight: 600;
  border-color: var(--teal);
}

.header-cta {
  padding-left: 18px;
}

.header-cta .btn {
  min-height: 40px;
  padding: .4rem 1.1rem;
  font-size: 14px;
}

.navbar-toggler {
  border: 1px solid var(--line);
  width: 48px;
  height: 44px;
  border-radius: 10px;
  background: #fff;
  padding: 8px;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  box-shadow: none !important;
}

.nav-toggler-bar {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

@media (max-width: 991.98px) {
  .navbar-toggler {
    display: flex;
  }

  .site-header .navbar-collapse {
    background: #fff;
    border-top: 1px solid var(--line);
    margin-top: 8px;
    padding: 6px 0 18px;
  }

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

  .site-nav .nav-link {
    line-height: 1.4;
    padding: 14px 8px;
    border-bottom: 1px solid #EEF3F6;
    border-bottom: none;
    border-left: 3px solid transparent;
  }

  .site-nav .nav-link:hover,
  .site-nav .nav-link.active {
    border-left-color: var(--teal);
    background: #F5F9FB;
  }

  .header-cta {
    padding: 16px 8px 4px;
    text-align: left;
  }
}

/* Category hero */
.cat-hero {
  position: relative;
  background-color: var(--hero-bg);
  background-image: linear-gradient(90deg, rgba(35, 89, 122, 0.035) 1px, transparent 1px), linear-gradient(rgba(35, 89, 122, 0.035) 1px, transparent 1px);
  background-size: 32px 32px;
  border-bottom: 1px solid rgba(227, 234, 240, 0.9);
  padding: 64px 0 76px;
}

@media (max-width: 991.98px) {
  .cat-hero {
    padding: 48px 0 56px;
  }
}

.breadcrumb-wrap {
  margin-bottom: 32px;
}

.cat-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 13px;
  color: var(--text-secondary);
}

.cat-breadcrumb li+li::before {
  content: "/";
  margin-right: 8px;
  color: #B2C4CE;
}

.cat-breadcrumb a {
  color: var(--text-secondary);
}

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

.cat-breadcrumb .current {
  color: var(--primary);
  font-weight: 600;
}

.cat-hero-title {
  margin: 12px 0 18px;
  font-size: clamp(2rem, 4vw, 3.1rem);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -0.03em;
  color: var(--primary);
}

.cat-hero-brand {
  color: var(--teal);
  margin-right: 4px;
}

.cat-hero-text {
  max-width: 580px;
  font-size: 1.06rem;
  line-height: 1.9;
  color: var(--text-secondary);
  margin-bottom: 30px;
}

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

.cat-hero-figure {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  background: #E3EBF0;
}

.cat-hero-figure img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.hero-badge {
  position: absolute;
  left: 20px;
  bottom: 20px;
  z-index: 2;
  background: rgba(255, 255, 255, 0.92);
  color: var(--primary);
  border-radius: 999px;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.hero-badge::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--teal);
}

/* Focus list cards */
.focus-item {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--card-bg);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: 32px;
  color: var(--text);
  transition: transform .25s ease-out, box-shadow .25s ease-out;
}

.focus-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  color: var(--text);
}

.focus-item-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.meta-badge {
  display: inline-flex;
  align-items: center;
  height: 26px;
  padding: 0 12px;
  background: #EAF2F7;
  color: var(--primary);
  font-size: 13px;
  font-weight: 500;
  border-radius: 999px;
  transition: background-color .2s ease-out, color .2s ease-out;
}

.focus-item:hover .meta-badge {
  background: var(--teal-light);
}

.meta-time {
  font-size: 13px;
  color: var(--text-secondary);
  white-space: nowrap;
}

.focus-item h3 {
  margin: 0 0 12px;
  font-size: 1.24rem;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: -0.01em;
  color: var(--text);
}

.focus-item p {
  margin: 0 0 22px;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.85;
}

.focus-item-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: auto;
  font-size: 14px;
  color: var(--primary);
  font-weight: 500;
}

.focus-item-bottom svg {
  width: 18px;
  height: 18px;
  transition: transform .2s ease-out;
}

.focus-item:hover .focus-item-bottom svg {
  transform: translateX(3px);
}

/* Coverage card */
.cover-box {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: 30px;
  height: 100%;
  transition: transform .25s ease-out, box-shadow .25s ease-out;
}

.cover-box:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.cover-box .cover-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--teal-light);
  color: var(--teal);
  font-size: 15px;
  font-weight: 800;
  margin-bottom: 18px;
}

.cover-box h3 {
  margin: 0 0 14px;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--primary);
}

.cover-box ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.cover-box li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 10px;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.8;
}

.cover-box li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 12px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--teal);
  opacity: .7;
}

/* Image split */
.split-block {
  display: flex;
  align-items: center;
  gap: 48px;
  margin-bottom: 56px;
}

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

.split-block--reverse {
  flex-direction: row-reverse;
}

.split-media {
  flex: 0 0 46%;
}

.split-text {
  flex: 1 1 auto;
}

.split-media-frame {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #E3EBF0;
  box-shadow: var(--shadow-sm);
}

.split-media-frame img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.split-index {
  font-size: 14px;
  font-weight: 700;
  color: var(--teal);
  letter-spacing: .12em;
  display: block;
  margin-bottom: 8px;
}

.split-text h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  margin: 0 0 14px;
  line-height: 1.35;
}

.split-text p {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.9;
  margin-bottom: 18px;
}

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

.split-list li {
  position: relative;
  padding: 8px 0 8px 26px;
  color: var(--text);
  font-size: 15px;
  border-bottom: 1px solid #F0F4F7;
}

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

.split-list li::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 18px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--teal);
}

@media (max-width: 991.98px) {
  .split-block,
  .split-block--reverse {
    flex-direction: column;
    gap: 30px;
  }

  .split-media {
    flex: 0 0 100%;
    width: 100%;
  }
}

/* Workflow */
.flow-section {
  background: var(--soft-bg);
  border-top: 1px solid rgba(227, 234, 240, 0.8);
  border-bottom: 1px solid rgba(227, 234, 240, 0.8);
}

.flow-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.flow-step {
  position: relative;
  background: #fff;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: 26px 24px;
  min-height: 180px;
  transition: transform .25s ease-out, box-shadow .25s ease-out;
}

.flow-step:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}

.flow-step-num {
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1;
  color: #D7E4EC;
  margin-bottom: 14px;
  display: block;
}

.flow-step h3 {
  font-size: 1.05rem;
  color: var(--primary);
  font-weight: 700;
  margin-bottom: 10px;
}

.flow-step p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-secondary);
  margin: 0;
}

@media (max-width: 991.98px) {
  .flow-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

/* FAQ */
.faq-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 1.7fr;
  gap: 40px;
}

.faq-aside {
  border-radius: var(--radius-md);
  background: #EAF1F5;
  padding: 34px;
  align-self: start;
}

.faq-aside h2 {
  margin: 0 0 16px;
  font-size: 1.55rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.4;
}

.faq-aside p {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.9;
  margin-bottom: 24px;
}

.faq-aside .btn {
  width: 100%;
}

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

.accordion-item {
  background: #fff;
  border: 1px solid var(--line) !important;
  border-radius: var(--radius-md) !important;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: border-color .2s ease-out, box-shadow .2s ease-out;
}

.accordion-item:has(.accordion-button:not(.collapsed)) {
  border-color: rgba(14, 140, 134, 0.3) !important;
  box-shadow: var(--shadow-hover);
}

.accordion-header {
  margin: 0;
}

.accordion-button {
  background: #fff;
  color: var(--text);
  font-size: 1.02rem;
  font-weight: 600;
  line-height: 1.55;
  min-height: 60px;
  padding: 18px 20px 18px 24px;
  box-shadow: none !important;
  border-radius: 0 !important;
}

.accordion-button:hover {
  background: #F8FBFD;
}

.accordion-button:not(.collapsed) {
  color: var(--primary);
  background: #F5FAFC;
}

.accordion-button::after {
  width: 20px;
  height: 20px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%2323597A' stroke-width='1.6' stroke-linecap='round'%3E%3Cpath d='M8 2v12M2 8h12'/%3E%3C/svg%3E");
  background-size: 18px 18px;
  transition: transform .25s ease-out;
}

.accordion-button:not(.collapsed)::after {
  filter: none;
  transform: rotate(45deg);
}

.accordion-body {
  padding: 4px 24px 24px;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.85;
  border-top: 1px solid #F0F4F7;
}

@media (max-width: 991.98px) {
  .faq-wrap {
    grid-template-columns: 1fr;
  }

  .faq-aside {
    padding: 24px;
  }
}

/* CTA band */
.cta-band {
  padding: 90px 0;
  background: var(--teal-light);
  border-top: 1px solid rgba(14, 140, 134, 0.12);
}

.cta-inner {
  background: #fff;
  border-radius: 22px;
  box-shadow: var(--shadow-sm);
  padding: 42px 46px;
}

.cta-kicker {
  font-size: 14px;
  color: var(--teal);
  font-weight: 700;
  letter-spacing: .08em;
}

.cta-inner h2 {
  margin: 12px 0 12px;
  font-size: clamp(1.45rem, 2.4vw, 1.9rem);
  font-weight: 800;
  line-height: 1.35;
  color: var(--primary);
}

.cta-inner p {
  color: var(--text-secondary);
  max-width: 560px;
  margin-bottom: 0;
}

.subscribe-form {
  background: #F5F9FB;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px;
}

.subscribe-form .input-group {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.subscribe-form .form-control {
  flex: 1 1 220px;
  height: 48px;
  font-size: 15px;
  border-radius: 8px;
  border: 1px solid #D4E0E8;
  padding: 0 16px;
  color: var(--text);
  background: #fff;
}

.subscribe-form .form-control::placeholder {
  color: #9AACB8;
}

.subscribe-form .form-control:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(14, 140, 134, 0.12);
}

.subscribe-form .btn {
  height: 48px;
}

.form-hint {
  margin: 12px 2px 0;
  font-size: 13px;
  color: var(--text-secondary);
}

@media (max-width: 767.98px) {
  .cta-band {
    padding: 60px 0;
  }

  .cta-inner {
    padding: 26px 22px;
  }
}

/* Footer */
.footer {
  background: var(--footer-bg);
  border-top: 1px solid #DCE6EC;
}

.footer .container {
  padding-top: 70px;
  padding-bottom: 28px;
}

.footer-brand-text {
  display: block;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.3;
  margin-bottom: 14px;
}

.footer-brand-text .logo-qm {
  color: var(--teal);
}

.footer-about {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.9;
  margin: 0;
  max-width: 360px;
}

.footer h4 {
  margin: 0 0 16px;
  font-size: 16px;
  font-weight: 700;
  color: var(--primary);
}

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

.footer ul li {
  margin-bottom: 10px;
  font-size: 14px;
  color: var(--text-secondary);
}

.footer ul a {
  color: var(--text-secondary);
}

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

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 44px;
  padding-top: 22px;
  border-top: 1px solid #D4E1E8;
}

.footer-bottom p {
  margin: 0;
  font-size: 13px;
  color: var(--text-secondary);
}

@media (max-width: 767.98px) {
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* Back to top */
.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 1020;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid #D6E2E9;
  background: rgba(255, 255, 255, 0.72);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
  transition: background-color .22s ease-out, color .22s ease-out, border-color .22s ease-out;
}

.back-to-top:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

.back-to-top svg {
  width: 18px;
  height: 18px;
}

/* roulang page: category3 */
:root {
  --page-bg: #F5F8FA;
  --card-bg: #FFFFFF;
  --primary: #23597A;
  --primary-2: #153F59;
  --accent: #0E8C86;
  --accent-soft: #E2F2F0;
  --text: #1D3B4C;
  --text-sub: #5E727E;
  --border: #E3EAF0;
  --soft-blue: #EDF3F7;
  --radius-btn: 8px;
  --radius-card: 16px;
  --radius-block: 20px;
  --shadow-card: 0 1px 3px rgba(21, 52, 66, 0.05), 0 12px 32px -18px rgba(21, 52, 66, 0.18);
  --shadow-hover: 0 2px 6px rgba(21, 52, 66, 0.06), 0 22px 44px -22px rgba(21, 52, 66, 0.3);
  --font-cn: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --transition: all .25s ease-out;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-margin-top: 90px;
}

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

a {
  color: var(--primary);
  text-decoration: none;
  transition: color .2s ease-in-out;
}

a:hover {
  color: var(--primary-2);
}

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

.container {
  max-width: 1320px;
  padding-left: 24px;
  padding-right: 24px;
}

.section {
  padding: 100px 0;
}

.section-sm {
  padding: 72px 0;
}

.section-light {
  background-color: var(--soft-blue);
}

.section-heading {
  position: relative;
  margin-bottom: 48px;
  padding-left: 18px;
}

.section-heading::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 4px;
  border-radius: 6px;
  background: var(--accent);
}

.section-heading .eyebrow {
  display: block;
  margin-bottom: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: .06em;
}

.section-heading h2 {
  font-size: 32px;
  font-weight: 800;
  line-height: 1.3;
  color: var(--text);
  margin: 0 0 10px 0;
}

.section-heading p {
  margin: 0;
  color: var(--text-sub);
  max-width: 680px;
  font-size: 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 24px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  border: 1px solid transparent;
  transition: var(--transition);
}

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

.btn-primary:hover,
.btn-primary:focus {
  background-color: var(--primary-2);
  border-color: var(--primary-2);
  color: #fff;
  transform: translateY(-1px);
}

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

.btn-outline-primary:hover,
.btn-outline-primary:focus {
  background-color: rgba(35, 89, 122, .08);
  color: var(--primary);
  border-color: var(--primary);
}

.btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 4px rgba(14, 140, 134, .18);
}

/* Header */
.site-header {
  background-color: #fff;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 1030;
  box-shadow: 0 1px 10px rgba(21, 52, 66, .03);
}

.site-header .navbar {
  min-height: 76px;
  padding: 0;
}

.logo-brand {
  display: inline-flex;
  align-items: baseline;
  font-size: 22px;
  line-height: 1.2;
  font-weight: 800;
  color: var(--primary);
  white-space: nowrap;
  transition: color .2s ease;
}

.logo-brand .logo-qm {
  font-size: 15px;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: .01em;
}

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

.site-nav {
  gap: 6px;
}

.site-nav .nav-item {
  margin: 0;
}

.site-nav .nav-link {
  position: relative;
  display: inline-block;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  padding: 10px 14px !important;
  transition: color .22s ease;
}

.site-nav .nav-link::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 4px;
  height: 3px;
  border-radius: 4px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .25s ease-out;
}

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

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

.site-nav .nav-link.active::after {
  transform: scaleX(1);
}

.header-cta {
  margin-left: 16px;
}

.header-cta .btn {
  min-height: 40px;
  padding: 8px 20px;
  font-size: 14px;
}

.navbar-toggler {
  border: 1px solid var(--border);
  border-radius: 8px;
  width: 44px;
  height: 44px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 0;
  background: #fff;
}

.navbar-toggler:focus {
  box-shadow: 0 0 0 4px rgba(14, 140, 134, .15);
  border-color: var(--accent);
}

.nav-toggler-bar {
  display: block;
  height: 2px;
  width: 20px;
  border-radius: 4px;
  background: var(--primary);
  transition: var(--transition);
}

/* Category Hero */
.category-hero {
  background-color: var(--soft-blue);
  border-bottom: 1px solid var(--border);
  padding: 84px 0 88px;
  overflow: hidden;
  position: relative;
}

.category-hero::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 560px;
  height: 100%;
  background-image: radial-gradient(rgba(35, 89, 122, .10) 1px, transparent 1px);
  background-size: 22px 22px;
  pointer-events: none;
  opacity: .45;
}

.breadcrumb-nav {
  margin-bottom: 20px;
}

.breadcrumb-nav .breadcrumb {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  margin: 0;
  padding: 0;
}

.breadcrumb-nav .breadcrumb li {
  display: flex;
  align-items: center;
  gap: 6px;
}

.breadcrumb-nav .breadcrumb li + li::before {
  content: "/";
  color: #93a7b4;
  font-weight: 400;
}

.breadcrumb-nav .breadcrumb a {
  color: var(--text-sub);
  text-decoration: none;
}

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

.breadcrumb-nav .breadcrumb li[aria-current="page"] {
  color: var(--primary);
  font-weight: 700;
}

.category-hero h1 {
  font-size: 42px;
  font-weight: 800;
  color: var(--text);
  margin: 0 0 20px 0;
  line-height: 1.25;
  max-width: 760px;
  letter-spacing: -0.01em;
}

.category-description {
  font-size: 17px;
  line-height: 1.9;
  color: var(--text-sub);
  margin: 0 0 28px 0;
  max-width: 680px;
}

.hero-tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  list-style: none;
  padding: 0;
  margin: 0;
}

.hero-tag-list li {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 500;
  color: var(--primary);
}

.category-hero-figure {
  background: #E5EEF4;
  border-radius: var(--radius-block);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  aspect-ratio: 4 / 3;
  position: relative;
}

.category-hero-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Guide summary section */
.context-intro-card {
  background: #fff;
  border-radius: var(--radius-block);
  padding: 36px;
  box-shadow: var(--shadow-card);
  height: 100%;
  border-top: 4px solid var(--accent);
}

.context-intro-card h2 {
  font-size: 28px;
  font-weight: 800;
  line-height: 1.4;
  margin: 0 0 16px;
  color: var(--text);
}

.context-intro-card p {
  color: var(--text-sub);
  line-height: 1.9;
  margin-bottom: 20px;
}

.dimension-card {
  background: var(--card-bg);
  border-radius: var(--radius-card);
  padding: 28px;
  height: 100%;
  box-shadow: var(--shadow-card);
  border: 1px solid transparent;
  transition: var(--transition);
}

.dimension-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--border);
}

.dimension-card .dimension-id {
  display: inline-block;
  font-size: 13px;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: .06em;
  margin-bottom: 16px;
  background: var(--accent-soft);
  border-radius: 999px;
  padding: 3px 12px;
}

.dimension-card h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 12px;
}

.dimension-card p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.8;
  margin-bottom: 18px;
}

.dimension-card ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.dimension-card li {
  position: relative;
  padding-left: 20px;
  color: var(--text-sub);
  font-size: 14px;
  margin-bottom: 8px;
}

.dimension-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
}

/* Post list cards */
.post-card {
  display: flex;
  background: #fff;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: 20px;
  height: 100%;
  flex-direction: row;
  align-items: stretch;
  gap: 20px;
  border: 1px solid transparent;
  transition: var(--transition);
}

.post-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
  border-color: var(--border);
}

.post-thumb {
  width: 180px;
  min-width: 180px;
  border-radius: 12px;
  overflow: hidden;
  background: #E7EEF3;
  aspect-ratio: 4 / 3;
}

.post-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.post-body {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.post-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 8px;
  font-size: 13px;
  color: var(--text-sub);
}

.post-tag {
  display: inline-flex;
  align-items: center;
  height: 24px;
  padding: 0 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  background: #EAF1F5;
  transition: var(--transition);
}

.post-tag:hover {
  background: var(--accent-soft);
  color: var(--accent);
}

.post-body h3 {
  font-size: 18px;
  line-height: 1.55;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 8px;
}

.post-body p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-sub);
  margin: 0 0 14px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-foot {
  margin-top: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: #7c919f;
}

/* Guide alternating row */
.guide-row {
  background: #fff;
  border-radius: var(--radius-block);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border);
  padding: 20px;
}

.guide-row + .guide-row {
  margin-top: 24px;
}

.step-badge {
  display: inline-flex;
  align-items: center;
  height: 30px;
  padding: 0 14px;
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 16px;
}

.guide-card-text {
  padding: 28px;
}

.guide-card-text h3 {
  font-size: 24px;
  font-weight: 800;
  line-height: 1.45;
  color: var(--text);
  margin-bottom: 16px;
}

.guide-card-text p {
  color: var(--text-sub);
  line-height: 1.9;
  margin-bottom: 18px;
}

.guide-card-text ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.guide-card-text ul li {
  position: relative;
  padding-left: 24px;
  color: var(--text);
  margin-bottom: 10px;
  font-size: 15px;
}

.guide-card-text ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 14px;
  height: 2px;
  background: var(--accent);
  border-radius: 4px;
}

.guide-visual {
  border-radius: var(--radius-card);
  overflow: hidden;
  min-height: 260px;
  background: #E5EEF4;
  height: 100%;
}

.guide-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* FAQ */
.faq-section {
  background-color: #fff;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.accordion {
  --bs-accordion-border-width: 0;
  --bs-accordion-border-radius: 16px;
}

.accordion-item {
  background: #fff;
  border: 1px solid var(--border) !important;
  border-radius: 16px !important;
  margin-bottom: 16px;
  overflow: hidden;
  box-shadow: 0 1px 2px rgba(21, 52, 66, .04);
  transition: var(--transition);
}

.accordion-item:last-child {
  margin-bottom: 0;
}

.accordion-item:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(14, 140, 134, .12);
}

.accordion-button {
  background: #fff;
  border-radius: 16px !important;
  padding: 20px 24px;
  font-family: var(--font-cn);
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.5;
  box-shadow: none;
  transition: var(--transition);
  cursor: pointer;
}

.accordion-button:not(.collapsed) {
  background: #f7fbfc;
  color: var(--primary);
  box-shadow: none;
}

.accordion-button:focus {
  box-shadow: none;
}

.accordion-button::after {
  display: none !important;
}

.accordion-header {
  min-height: 56px;
}

.faq-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  min-width: 24px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  position: relative;
  margin-left: 12px;
}

.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  background: var(--accent);
  border-radius: 2px;
  transition: all .25s ease-out;
}

.faq-icon::before {
  width: 10px;
  height: 2px;
}

.faq-icon::after {
  width: 2px;
  height: 10px;
}

.accordion-button:not(.collapsed) .faq-icon::after {
  transform: scaleY(0);
}

.accordion-body {
  padding: 0 24px 24px;
  color: var(--text-sub);
  font-size: 15px;
  line-height: 1.9;
}

/* CTA band */
.cta-band {
  padding: 88px 0;
  background: var(--soft-blue);
}

.cta-inner {
  background: #fff;
  border-radius: var(--radius-block);
  box-shadow: var(--shadow-card);
  padding: 52px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  border-left: 6px solid var(--accent);
}

.cta-text {
  flex: 1 1 480px;
}

.cta-text .eyebrow {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  display: block;
  margin-bottom: 6px;
}

.cta-text h2 {
  font-size: 30px;
  font-weight: 800;
  color: var(--text);
  margin: 0 0 12px;
  line-height: 1.4;
}

.cta-text p {
  color: var(--text-sub);
  margin: 0;
  line-height: 1.9;
  max-width: 680px;
}

.cta-action {
  flex-shrink: 0;
}

/* Footer */
.footer {
  background-color: #e9eff3;
  border-top: 1px solid var(--border);
  padding: 64px 0 30px;
}

.footer-brand-text {
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 14px;
}

.footer-brand-text .logo-qm {
  color: var(--accent);
  font-size: 15px;
  font-weight: 800;
}

.footer-about {
  color: var(--text-sub);
  font-size: 14px;
  line-height: 1.9;
  max-width: 320px;
}

.footer h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 16px;
}

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

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

.footer ul a {
  color: var(--text-sub);
  font-size: 14px;
}

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

.footer-bottom {
  margin-top: 48px;
  padding-top: 22px;
  border-top: 1px solid #d5dfe5;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
}

.footer-bottom p {
  margin: 0;
  color: #6d8292;
  font-size: 13px;
}

/* Responsive */
@media (max-width: 1199.98px) {
  .section {
    padding: 84px 0;
  }
}

@media (max-width: 991.98px) {
  .category-hero {
    padding: 64px 0 72px;
  }

  .category-hero h1 {
    font-size: 34px;
  }

  .navbar-collapse {
    background: #fff;
    padding: 16px 20px 24px;
    position: absolute;
    left: 0;
    right: 0;
    top: 76px;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 24px 40px -32px rgba(21, 52, 66, .35);
  }

  .site-nav {
    margin: 0;
  }

  .site-nav .nav-link {
    display: block;
    padding: 14px 0 !important;
    border-bottom: 1px solid #eef3f6;
  }

  .site-nav .nav-link::after {
    display: none;
  }

  .site-nav .nav-item:last-child .nav-link {
    border-bottom: 0;
  }

  .site-nav .nav-link.active {
    color: var(--accent);
    border-left: 3px solid var(--accent);
    padding-left: 12px !important;
  }

  .header-cta {
    margin-left: 0;
    margin-top: 16px;
  }

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

  .post-thumb {
    width: 140px;
    min-width: 140px;
  }

  .cta-inner {
    padding: 38px;
  }
}

@media (max-width: 767.98px) {
  .section {
    padding: 64px 0;
  }

  .section-heading h2 {
    font-size: 27px;
  }

  .category-hero h1 {
    font-size: 29px;
  }

  .category-hero {
    padding: 48px 0 58px;
  }

  .post-card {
    flex-direction: column;
  }

  .post-thumb {
    width: 100%;
    min-width: 100%;
    aspect-ratio: 16 / 9;
  }

  .guide-row {
    padding: 16px;
  }

  .guide-card-text {
    padding: 20px 8px;
  }

  .guide-card-text h3 {
    font-size: 21px;
  }

  .cta-band {
    padding: 56px 0;
  }

  .cta-inner {
    padding: 28px 24px;
    flex-direction: column;
    align-items: flex-start;
  }

  .cta-text h2 {
    font-size: 24px;
  }

  .footer {
    padding-top: 48px;
  }

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

@media (max-width: 575.98px) {
  .container {
    padding-left: 20px;
    padding-right: 20px;
  }

  .category-hero h1 {
    font-size: 26px;
  }

  .category-description {
    font-size: 16px;
  }

  .section-heading h2 {
    font-size: 24px;
  }

  .dimension-card {
    padding: 24px;
  }
}

/* roulang page: category2 */
:root {
            --bg: #F5F8FA;
            --surface: #FFFFFF;
            --hero-bg: #EDF3F7;
            --footer-bg: #E9F0F5;
            --brand: #23597A;
            --brand-dark: #153F59;
            --accent: #0E8C86;
            --accent-soft: #E2F2F0;
            --text-main: #1D3B4C;
            --text-muted: #5E727E;
            --line: #E3EAF0;
            --border-main: #D6E1E8;
            --shadow-card: 0 1px 3px rgba(21, 52, 66, 0.05), 0 12px 32px -18px rgba(21, 52, 66, 0.18);
            --shadow-lift: 0 16px 42px -20px rgba(21, 52, 66, 0.28), 0 20px 40px -28px rgba(21, 52, 66, 0.22);
            --radius-btn: 8px;
            --radius-card: 16px;
            --radius-block: 20px;
            --font-stack: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

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

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

        a {
            color: var(--brand);
            text-decoration: none;
            transition: color .25s ease-out, background-color .25s ease-out, border-color .25s ease-out;
        }

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

        h1, h2, h3, h4, h5 {
            font-weight: 700;
            line-height: 1.25;
            margin-top: 0;
            color: var(--text-main);
        }

        button, input, textarea {
            font-family: var(--font-stack);
        }

        .container {
            max-width: 1320px;
        }

        .btn {
            min-height: 44px;
            padding: 10px 26px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: background-color .25s ease-out, box-shadow .25s ease-out, color .25s ease-out, transform .25s ease-out, border-color .25s ease-out;
        }

        .btn-primary {
            background-color: var(--brand);
            border: 1px solid var(--brand);
            color: #FFFFFF;
        }

        .btn-primary:hover,
        .btn-primary:focus {
            background-color: var(--brand-dark);
            border-color: var(--brand-dark);
            color: #FFFFFF;
        }

        .btn-ghost {
            background-color: transparent;
            border: 1px solid var(--brand);
            color: var(--brand);
        }

        .btn-ghost:hover,
        .btn-ghost:focus {
            background-color: #EAF1F5;
            border-color: var(--brand);
            color: var(--brand-dark);
        }

        .btn-accent {
            background-color: var(--accent);
            border: 1px solid var(--accent);
            color: #FFFFFF;
        }

        .btn-accent:hover,
        .btn-accent:focus {
            background-color: #0A7471;
            border-color: #0A7471;
            color: #FFFFFF;
        }

        a:focus-visible,
        button:focus-visible,
        .btn:focus-visible {
            outline: 2px solid var(--brand);
            outline-offset: 3px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 1080;
            background: rgba(255, 255, 255, .96);
            border-bottom: 1px solid var(--line);
            box-shadow: 0 6px 18px -18px rgba(21, 52, 66, .28);
        }

        .site-header .navbar {
            min-height: 76px;
            padding: 0;
        }

        .logo-brand,
        .footer-brand-text {
            display: inline-flex;
            align-items: center;
            font-size: 22px;
            font-weight: 800;
            color: var(--brand);
            letter-spacing: -0.01em;
        }

        .logo-qm {
            font-size: .86em;
            font-weight: 800;
            color: var(--accent);
            margin-right: 2px;
            letter-spacing: .02em;
        }

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

        .site-nav {
            gap: 0;
        }

        .site-nav .nav-link {
            position: relative;
            display: inline-block;
            padding: 9px 2px;
            margin: 0 12px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-muted);
            background: transparent;
            border: 0;
            line-height: 1.4;
        }

        .site-nav .nav-link::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: -2px;
            height: 3px;
            border-radius: 4px 4px 0 0;
            background: transparent;
            transition: background-color .25s ease-out;
        }

        .site-nav .nav-link:hover,
        .site-nav .nav-link:focus {
            color: var(--brand);
            background: transparent;
        }

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

        .site-nav .nav-link.active::after {
            background: var(--accent);
        }

        .header-cta .btn {
            min-height: 40px;
            padding: 0 24px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            line-height: 38px;
        }

        .navbar-toggler {
            border: 0;
            background: transparent;
            padding: 8px;
            box-shadow: none !important;
        }

        .nav-toggler-bar {
            display: block;
            width: 22px;
            height: 2px;
            margin: 5px 0;
            background: var(--brand);
            border-radius: 2px;
        }

        .category-page-hero {
            position: relative;
            overflow: hidden;
            background-color: var(--hero-bg);
            border-bottom: 1px solid var(--line);
            padding: 96px 0 88px;
        }

        .category-page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: radial-gradient(#C9D9E4 1px, transparent 1px);
            background-size: 24px 24px;
            opacity: .5;
            pointer-events: none;
        }

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

        .breadcrumb-cat {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 13px;
            margin-bottom: 22px;
            color: var(--text-muted);
        }

        .breadcrumb-cat a {
            color: var(--text-muted);
            text-decoration: none;
            transition: color .25s ease-out;
        }

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

        .breadcrumb-cat .breadcrumb-sep {
            color: #A9BCC7;
        }

        .breadcrumb-cat .current {
            color: var(--brand);
            font-weight: 600;
        }

        .category-page-hero h1 {
            font-size: 44px;
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.22;
            margin-bottom: 20px;
            color: var(--brand-dark);
        }

        .hero-lead {
            font-size: 17px;
            font-weight: 400;
            color: var(--text-muted);
            max-width: 640px;
            line-height: 1.9;
            margin-bottom: 28px;
        }

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

        .picture-shell {
            border-radius: var(--radius-block);
            background: var(--surface);
            border: 1px solid var(--line);
            box-shadow: var(--shadow-card);
            padding: 8px;
            transition: box-shadow .25s ease-out;
        }

        .picture-shell img {
            width: 100%;
            height: 440px;
            object-fit: cover;
            border-radius: 16px;
            background: #D8E1E8;
        }

        .section-read-list {
            background: var(--surface);
            padding: 104px 0 96px;
        }

        .section-heading {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            margin-bottom: 52px;
        }

        .section-heading-main .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--accent);
            font-size: 14px;
            font-weight: 700;
            letter-spacing: .14em;
            margin-bottom: 12px;
        }

        .section-heading-main .eyebrow::before {
            content: "";
            width: 20px;
            height: 3px;
            border-radius: 4px;
            background: var(--accent);
        }

        .section-heading-main h2 {
            font-size: 38px;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 0;
            color: var(--text-main);
        }

        .section-heading-note {
            max-width: 520px;
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.85;
            margin-bottom: 4px;
        }

        .info-list-item {
            height: 100%;
        }

        .info-list-item > .info-card-link {
            display: flex;
            height: 100%;
            background: var(--surface);
            border: 1px solid #E7EEF2;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            color: inherit;
            transform: translateY(0);
            transition: transform .25s ease-out, box-shadow .25s ease-out, border-color .25s ease-out;
        }

        .info-list-item > .info-card-link:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lift);
            border-color: #CBD8E0;
            color: inherit;
        }

        .info-thumb {
            width: 150px;
            min-height: 186px;
            flex-shrink: 0;
            background: #D7E0E7;
            overflow: hidden;
        }

        .info-thumb img {
            width: 100%;
            height: 100%;
            min-height: 186px;
            object-fit: cover;
            transition: transform .3s ease-out;
        }

        .info-list-item > .info-card-link:hover .info-thumb img {
            transform: scale(1.03);
        }

        .info-body {
            padding: 24px 24px 22px;
            flex: 1;
        }

        .info-body h3 {
            font-size: 19px;
            font-weight: 700;
            line-height: 1.45;
            margin-bottom: 10px;
            color: var(--text-main);
        }

        .info-list-item > .info-card-link:hover .info-body h3 {
            color: var(--brand);
        }

        .info-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .tag-line {
            display: inline-flex;
            align-items: center;
            height: 22px;
            padding: 0 10px;
            border-radius: 999px;
            background: #EAF1F5;
            color: var(--brand);
            font-size: 12px;
            font-weight: 500;
            line-height: 1;
            white-space: nowrap;
        }

        .tag-line.is-accent {
            background: var(--accent-soft);
            color: #076E68;
        }

        .info-date {
            white-space: nowrap;
        }

        .info-summary {
            margin-bottom: 0;
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-muted);
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .section-guide {
            background: var(--bg);
            padding: 104px 0 96px;
            border-top: 1px solid #EDF2F6;
            border-bottom: 1px solid #EDF2F6;
        }

        .guide-row {
            align-items: center;
            margin-bottom: 56px;
        }

        .guide-row:last-child {
            margin-bottom: 0;
        }

        .guide-card {
            background: var(--surface);
            border-radius: var(--radius-card);
            padding: 34px;
            height: 100%;
            box-shadow: var(--shadow-card);
        }

        .guide-index {
            font-size: 13px;
            font-weight: 800;
            letter-spacing: .16em;
            color: var(--accent);
            margin-bottom: 10px;
        }

        .guide-card h3 {
            font-size: 25px;
            font-weight: 750;
            margin-bottom: 14px;
        }

        .guide-card p {
            color: var(--text-muted);
            line-height: 1.9;
            font-size: 15px;
            margin-bottom: 0;
        }

        .guide-card-list {
            list-style: none;
            margin: 18px 0 0;
            padding: 0;
        }

        .guide-card-list li {
            position: relative;
            padding-left: 24px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
        }

        .guide-card-list li + li {
            margin-top: 8px;
        }

        .guide-card-list li::before {
            content: "";
            position: absolute;
            left: 2px;
            top: 11px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
        }

        .guide-visual {
            border-radius: var(--radius-block);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            height: 100%;
            min-height: 300px;
            background: #DAE3E9;
        }

        .guide-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 300px;
        }

        .cta-section {
            background: var(--surface);
            padding: 88px 0 104px;
        }

        .cta-box {
            background: var(--hero-bg);
            border: 1px solid var(--line);
            border-left: 6px solid var(--accent);
            border-radius: var(--radius-block);
            padding: 52px 56px;
            box-shadow: var(--shadow-card);
        }

        .cta-box h2 {
            font-size: 30px;
            font-weight: 800;
            letter-spacing: -0.01em;
            margin-bottom: 10px;
        }

        .cta-box p {
            color: var(--text-muted);
            margin-bottom: 0;
            max-width: 760px;
            font-size: 16px;
            line-height: 1.85;
        }

        .cta-box .btn {
            white-space: nowrap;
        }

        .footer {
            background: var(--footer-bg);
            padding: 80px 0 36px;
            color: var(--text-muted);
        }

        .footer .logo-qm {
            font-size: .86em;
        }

        .footer-brand-text {
            margin-bottom: 14px;
            font-size: 22px;
            font-weight: 800;
        }

        .footer-about {
            font-size: 14px;
            line-height: 1.85;
            color: var(--text-muted);
            margin-right: 20px;
        }

        .footer h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--brand);
            margin-bottom: 18px;
        }

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

        .footer ul li {
            font-size: 14px;
            line-height: 1.7;
        }

        .footer ul li + li {
            margin-top: 10px;
        }

        .footer ul a {
            color: var(--text-muted);
            transition: color .25s ease-out;
        }

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

        .footer-bottom {
            border-top: 1px solid #D6E1E8;
            margin-top: 50px;
            padding-top: 22px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 10px;
            font-size: 13px;
            color: #768A95;
        }

        .footer-bottom p {
            margin-bottom: 0;
        }

        .back-to-top {
            position: fixed;
            right: 28px;
            bottom: 28px;
            z-index: 1060;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .86);
            border: 1px solid var(--border-main);
            color: var(--brand);
            font-size: 18px;
            line-height: 1;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 8px 24px -16px rgba(21, 52, 66, .4);
            opacity: 0;
            visibility: hidden;
            transform: translateY(12px);
            transition: opacity .25s ease-out, transform .25s ease-out, background-color .25s ease-out, color .25s ease-out;
        }

        .back-to-top.show {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .back-to-top:hover {
            background: var(--brand);
            border-color: var(--brand);
            color: #FFFFFF;
        }

        @media (max-width: 1199.98px) {
            .category-page-hero h1 {
                font-size: 38px;
            }

            .picture-shell img {
                height: 360px;
            }

            .section-heading h2 {
                font-size: 34px;
            }
        }

        @media (max-width: 991.98px) {
            .site-header .navbar {
                min-height: 0;
                padding: 12px 0;
            }

            .site-header .navbar-collapse {
                background: #FFFFFF;
                border: 1px solid var(--line);
                border-radius: var(--radius-card);
                box-shadow: var(--shadow-card);
                margin-top: 14px;
                padding: 14px;
            }

            .site-nav {
                gap: 0;
            }

            .site-nav .nav-item {
                width: 100%;
            }

            .site-nav .nav-item + .nav-item {
                border-top: 1px solid #EEF2F5;
            }

            .site-nav .nav-link {
                display: block;
                margin: 0;
                padding: 14px 12px;
                border-radius: 8px;
                font-size: 15px;
            }

            .site-nav .nav-link.active {
                background: var(--accent-soft);
            }

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

            .header-cta {
                margin-top: 14px;
                width: 100%;
            }

            .header-cta .btn {
                display: flex;
                width: 100%;
                justify-content: center;
            }

            .category-page-hero {
                padding: 68px 0 60px;
            }

            .category-page-hero h1 {
                font-size: 34px;
            }

            .hero-lead {
                font-size: 16px;
            }

            .picture-shell {
                margin-top: 24px;
            }

            .picture-shell img {
                height: 340px;
            }

            .section-read-list,
            .section-guide {
                padding: 80px 0 72px;
            }

            .section-heading {
                flex-direction: column;
                align-items: flex-start;
                gap: 16px;
                margin-bottom: 40px;
            }

            .section-heading-note {
                max-width: 680px;
            }

            .info-thumb {
                width: 130px;
            }

            .info-thumb img {
                height: 100%;
            }

            .cta-section {
                padding: 72px 0 80px;
            }

            .cta-box {
                padding: 36px 32px;
            }
        }

        @media (max-width: 767.98px) {
            .category-page-hero h1 {
                font-size: 29px;
            }

            .section-heading-main h2 {
                font-size: 28px;
            }

            .info-list-item > .info-card-link {
                flex-direction: column;
            }

            .info-thumb,
            .info-thumb img {
                width: 100%;
                min-height: 0;
                height: 220px;
            }

            .guide-card {
                padding: 24px;
            }

            .guide-row + .guide-row {
                margin-top: 32px;
            }

            .cta-box {
                padding: 30px 24px;
            }

            .cta-box h2 {
                font-size: 25px;
            }

            .cta-box .btn {
                margin-top: 18px;
            }
        }

        @media (max-width: 575.98px) {
            .category-page-hero h1 {
                font-size: 27px;
            }

            .hero-lead {
                font-size: 15px;
            }

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

            .picture-shell img {
                height: 250px;
            }

            .section-read-list,
            .section-guide {
                padding: 64px 0 56px;
            }

            .section-heading-main h2 {
                font-size: 25px;
            }

            .info-body {
                padding: 20px;
            }

            .info-body h3 {
                font-size: 18px;
            }

            .footer {
                padding-top: 56px;
            }

            .back-to-top {
                right: 16px;
                bottom: 16px;
            }
        }

/* roulang page: category4 */
:root {
  --body-bg: #F5F8FA;
  --card-bg: #FFFFFF;
  --primary: #23597A;
  --primary-dark: #153F59;
  --accent: #0E8C86;
  --accent-soft: #E2F2F0;
  --text: #1D3B4C;
  --muted: #5E727E;
  --line: #E3EAF0;
  --soft-bg: #EDF3F7;
  --r-sm: 8px;
  --r-md: 16px;
  --r-lg: 20px;
  --shadow: 0 1px 3px rgba(21, 52, 66, 0.05), 0 12px 32px -18px rgba(21, 52, 66, 0.18);
  --shadow-hover: 0 6px 18px rgba(21, 52, 66, 0.08), 0 24px 50px -24px rgba(21, 52, 66, 0.28);
  --font-stack: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}

body {
  margin: 0;
  background: var(--body-bg);
  color: var(--text);
  font-family: var(--font-stack);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.25s ease-out, background-color 0.25s ease-out, border-color 0.25s ease-out;
}

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

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

h1, h2, h3, h4, h5, h6 {
  margin-top: 0;
  margin-bottom: 0.6rem;
  color: var(--text);
  font-weight: 700;
  line-height: 1.3;
}

p {
  margin-top: 0;
  margin-bottom: 1rem;
  color: var(--text);
}

.container {
  max-width: 1320px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.625rem 1.5rem;
  border-radius: var(--r-sm);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  transition: color 0.25s ease-out, background-color 0.25s ease-out, border-color 0.25s ease-out, transform 0.25s ease-out, box-shadow 0.25s ease-out;
}

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

.btn-primary:hover,
.btn-primary:focus {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 12px 24px -14px rgba(21, 63, 89, 0.5);
}

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

.btn-outline-primary:hover,
.btn-outline-primary:focus {
  background: var(--accent-soft);
  border-color: var(--primary);
  color: var(--primary-dark);
  transform: translateY(-2px);
}

.btn-lg {
  min-height: 52px;
  padding: 0.75rem 1.875rem;
  font-size: 16px;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
  border-radius: 6px;
}

.section {
  padding: 88px 0;
}

.section-white {
  background: #ffffff;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section-head {
  margin-bottom: 48px;
}

.section-eyebrow {
  display: inline-block;
  margin-bottom: 10px;
  padding: 4px 12px;
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.section-title {
  position: relative;
  margin-bottom: 18px;
  padding-left: 18px;
  font-size: 30px;
  font-weight: 800;
  line-height: 1.3;
}

.section-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 5px;
  height: calc(100% - 12px);
  border-radius: 6px;
  background: var(--accent);
}

.section-desc {
  max-width: 720px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.8;
}

/* ---------- Site Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1040;
  background: #ffffff;
  border-bottom: 1px solid var(--line);
}

.site-header .navbar {
  min-height: 76px;
  padding: 0;
}

.logo-brand {
  display: inline-flex;
  align-items: baseline;
  gap: 2px;
  font-size: 1.3rem;
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--primary);
  white-space: nowrap;
}

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

.logo-brand .logo-qm {
  font-size: 1rem;
  font-weight: 800;
  color: var(--accent);
}

.site-nav {
  column-gap: 4px;
}

.site-nav .nav-item {
  position: relative;
}

.site-nav .nav-link {
  display: inline-block;
  padding: 26px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  white-space: nowrap;
}

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

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

.site-nav .nav-link.active::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: -1px;
  height: 3px;
  border-radius: 3px 3px 0 0;
  background: var(--accent);
}

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

.header-cta .btn {
  min-height: 40px;
  padding: 0.5rem 1.25rem;
}

.navbar-toggler {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
  border-radius: var(--r-sm);
}

.navbar-toggler:focus {
  outline: none;
  box-shadow: 0 0 0 4px rgba(35, 89, 122, 0.12);
}

.navbar-toggler .nav-toggler-bar {
  display: block;
  width: 24px;
  height: 2px;
  border-radius: 2px;
  background: var(--primary);
}

/* ---------- Breadcrumb ---------- */
.crumb-nav {
  margin-bottom: 22px;
}

.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--muted);
}

.breadcrumb-list li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb-list li + li::before {
  content: "/";
  color: var(--line);
}

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

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

.breadcrumb-list .current {
  color: var(--primary);
  font-weight: 700;
}

/* ---------- Page Hero ---------- */
.page-hero {
  padding: 72px 0 80px;
  background: var(--soft-bg);
  border-bottom: 1px solid var(--line);
  position: relative;
}

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

.page-hero-title {
  margin-bottom: 22px;
  font-size: clamp(2.25rem, 3vw + 1rem, 3.2rem);
  font-weight: 800;
  line-height: 1.22;
  scroll-margin-top: 90px;
}

.page-hero-title .brand-mark {
  color: var(--primary);
}

.page-hero-title .accent-text {
  color: var(--accent);
}

.hero-lead {
  max-width: 620px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.9;
  margin-bottom: 32px;
}

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

.hero-figure {
  margin: 0;
  padding: 10px;
  background: #ffffff;
  border-radius: var(--r-lg);
  box-shadow: var(--shadow);
}

.hero-figure img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: calc(var(--r-lg) - 6px);
}

.hero-figure figcaption {
  padding: 14px 6px 4px;
  color: var(--muted);
  font-size: 14px;
  text-align: center;
}

/* ---------- Cards ---------- */
.card-base {
  background: var(--card-bg);
  border-radius: var(--r-md);
  box-shadow: var(--shadow);
  transition: transform 0.25s ease-out, box-shadow 0.25s ease-out;
}

.card-base:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
}

.read-card {
  position: relative;
  display: flex;
  flex-direction: column;
  height: 100%;
  background: #ffffff;
  border-radius: var(--r-md);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: transform 0.25s ease-out, box-shadow 0.25s ease-out;
}

.read-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
}

.read-thumb {
  overflow: hidden;
}

.read-thumb img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  transition: transform 0.3s ease-out;
}

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

.read-body {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 26px 26px 24px;
}

.read-meta-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.badge-tag {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 10px;
  border-radius: 999px;
  background: var(--soft-bg);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
}

.badge-tag:hover {
  background: var(--accent-soft);
  color: var(--accent);
}

.meta-time {
  color: var(--muted);
  font-size: 13px;
}

.read-title {
  font-size: 19px;
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 12px;
}

.read-title a {
  color: var(--text);
}

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

.read-desc {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 18px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.read-card-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  color: var(--muted);
  font-size: 13px;
}

.read-arrow {
  color: var(--accent);
  font-weight: 600;
}

.read-card:hover .read-arrow {
  color: var(--primary-dark);
}

/* ---------- Content Guide ---------- */
.content-guide {
  display: flex;
  flex-direction: column;
  gap: 68px;
}

.guide-row {
  align-items: center;
}

.guide-number {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  color: var(--accent);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.guide-number strong {
  font-size: 26px;
  font-weight: 800;
  color: var(--primary);
}

.guide-title {
  margin-bottom: 14px;
  font-size: 26px;
  font-weight: 700;
}

.guide-copy p {
  color: var(--muted);
  line-height: 1.9;
  margin-bottom: 18px;
}

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

.guide-list li {
  position: relative;
  padding-left: 24px;
  color: var(--muted);
  line-height: 1.8;
  margin-bottom: 10px;
}

.guide-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

.media-box {
  margin: 0;
  overflow: hidden;
  border-radius: var(--r-lg);
  background: #ffffff;
  box-shadow: var(--shadow);
}

.media-box img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.media-box figcaption {
  padding: 14px 18px 16px;
  color: var(--muted);
  font-size: 14px;
  border-top: 1px solid var(--line);
}

/* ---------- FAQ ---------- */
.faq-side-panel {
  height: 100%;
  padding: 36px;
  background: #ffffff;
  border-radius: var(--r-md);
  box-shadow: var(--shadow);
}

.faq-side-panel h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 14px;
}

.faq-side-panel p {
  color: var(--muted);
  line-height: 1.85;
  margin-bottom: 20px;
}

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

.accordion-item {
  border: 1px solid var(--line);
  border-radius: var(--r-md) !important;
  background: #ffffff;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.accordion-button {
  min-height: 60px;
  padding: 18px 22px;
  background: #ffffff;
  color: var(--text);
  font-size: 17px;
  font-weight: 600;
  border: 0;
  box-shadow: none;
  outline: none;
  transition: color 0.25s ease-out, background-color 0.25s ease-out;
}

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

.accordion-button:focus {
  box-shadow: 0 0 0 4px rgba(35, 89, 122, 0.08);
  border-radius: var(--r-md);
}

.accordion-button::after {
  content: "+";
  width: 28px;
  height: 28px;
  margin-left: auto;
  background-image: none;
  color: var(--accent);
  font-size: 24px;
  font-weight: 400;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.accordion-button:not(.collapsed)::after {
  content: "−";
  background-image: none;
}

.accordion-body {
  padding: 4px 24px 26px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.9;
}

.accordion-body p {
  color: var(--muted);
  margin-bottom: 0;
}

/* ---------- Subscribe CTA ---------- */
.subscribe-section {
  background: var(--soft-bg);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.cta-panel {
  background: #ffffff;
  border-radius: var(--r-lg);
  box-shadow: var(--shadow);
  padding: 54px;
}

.cta-text h2 {
  font-size: 30px;
  font-weight: 800;
  margin-bottom: 16px;
}

.cta-text p {
  color: var(--muted);
  line-height: 1.9;
  margin-bottom: 0;
}

.cta-form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
}

.form-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}

.form-control {
  width: 100%;
  height: 50px;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  color: var(--text);
  font-size: 16px;
  background: #ffffff;
  padding: 0.6rem 1rem;
  box-shadow: none;
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(35, 89, 122, 0.1);
  outline: none;
}

.form-control::placeholder {
  color: #94A4AD;
}

/* ---------- Footer ---------- */
.footer {
  background: #EAF0F4;
  padding-top: 72px;
}

.footer .footer-brand-text {
  margin-bottom: 16px;
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--primary);
}

.footer-brand-text .logo-qm {
  color: var(--accent);
  font-weight: 800;
}

.footer-about {
  max-width: 320px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 12px;
}

.footer h4 {
  margin-bottom: 18px;
  color: var(--text);
  font-size: 16px;
  font-weight: 700;
}

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

.footer ul li {
  margin-bottom: 12px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.5;
}

.footer ul a {
  color: var(--muted);
}

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

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 52px;
  padding: 26px 0 30px;
  border-top: 1px solid var(--line);
}

.footer-bottom p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

/* ---------- Responsive ---------- */
@media (max-width: 1199.98px) {
  .section {
    padding: 76px 0;
  }

  .site-nav .nav-link {
    padding-left: 10px;
    padding-right: 10px;
  }

  .header-cta .btn {
    padding-left: 14px;
    padding-right: 14px;
  }
}

@media (max-width: 991.98px) {
  .site-header {
    padding: 10px 0;
  }

  .site-header .navbar {
    min-height: 56px;
  }

  .navbar-collapse {
    margin-top: 10px;
    padding: 16px;
    background: #ffffff;
    border: 1px solid var(--line);
    border-radius: var(--r-md);
    box-shadow: var(--shadow);
  }

  .site-nav {
    width: 100%;
  }

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

  .site-nav .nav-item:last-child {
    border-bottom: 0;
  }

  .site-nav .nav-link {
    display: inline-block;
    width: 100%;
    padding: 14px 2px;
    font-size: 16px;
  }

  .site-nav .nav-link.active::after {
    left: 2px;
    right: auto;
    bottom: 8px;
    width: 22px;
    height: 3px;
  }

  .header-cta {
    width: 100%;
    padding: 16px 0 4px;
    margin-left: 0;
  }

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

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

  .hero-figure {
    margin-top: 16px;
  }

  .section {
    padding: 64px 0;
  }

  .section-title {
    font-size: 27px;
  }

  .content-guide {
    gap: 48px;
  }

  .guide-row {
    row-gap: 24px;
  }

  .guide-media {
    order: 2;
  }

  .guide-row .order-md-first {
    order: 2 !important;
  }

  .guide-row .guide-text {
    order: 1;
  }

  .cta-panel {
    padding: 36px;
  }

  .cta-form {
    grid-template-columns: 1fr;
    margin-top: 24px;
  }
}

@media (max-width: 767.98px) {
  .hero-actions .btn {
    width: 100%;
  }

  .section-title {
    font-size: 24px;
  }

  .section-desc {
    font-size: 15px;
  }

  .read-body {
    padding: 22px 20px;
  }

  .read-title {
    font-size: 18px;
  }

  .cta-panel {
    padding: 28px 22px;
  }

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

  .form-control {
    height: 48px;
  }

  .footer-bottom {
    justify-content: flex-start;
  }
}

@media (max-width: 575.98px) {
  .container {
    padding-left: 20px;
    padding-right: 20px;
  }

  .page-hero {
    padding: 44px 0 52px;
  }

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

  .hero-lead {
    font-size: 16px;
  }

  .section {
    padding: 56px 0;
  }

  .faq-side-panel {
    padding: 24px 20px;
  }

  .accordion-button {
    padding: 16px 18px;
    font-size: 16px;
  }

  .accordion-button::after {
    font-size: 22px;
  }

  .read-card-bottom {
    flex-wrap: wrap;
    gap: 8px;
  }
}