/* roulang page: index */
:root {
  --color-primary: #E8541E;
  --color-primary-dark: #C03E12;
  --color-primary-light: #FFECE3;
  --color-secondary: #1E8E9E;
  --color-secondary-light: #E0F5F7;
  --color-bg: #F7F4F0;
  --color-surface: #FFFFFF;
  --color-text: #1E1B18;
  --color-text-muted: #6E675F;
  --color-border: #E8E0D8;
  --color-warning: #E8A020;
  --color-success: #2F9E6E;
  --color-footer-bg: #171310;
  --color-footer-text: #B5ACA3;
  --shadow-sm: 0 2px 8px rgba(30, 20, 10, 0.06);
  --shadow-md: 0 6px 24px rgba(30, 20, 10, 0.09);
  --shadow-lg: 0 14px 44px rgba(30, 20, 10, 0.12);
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-pill: 999px;
  --container-width: 1200px;
  --transition: 0.3s ease;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", system-ui, sans-serif;
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.75;
  font-size: 1rem;
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
}
a:hover {
  color: var(--color-primary);
}
img {
  max-width: 100%;
  display: block;
}
button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}
button {
  cursor: pointer;
  border: none;
  background: none;
}
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: 4px;
}
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding-left: 16px;
  padding-right: 16px;
}
@media (min-width: 768px) {
  .container {
    padding-left: 24px;
    padding-right: 24px;
  }
}
::selection {
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 0.9375rem;
  border-radius: var(--radius-md);
  padding: 0.75rem 1.5rem;
  transition: all var(--transition);
  border: 1.5px solid transparent;
  text-align: center;
  white-space: nowrap;
}
.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  color: inherit;
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: #fff;
}
.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-outline:hover {
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
}
.btn-light {
  background: rgba(255,255,255,0.92);
  color: var(--color-text);
  border-color: transparent;
}
.btn-light:hover {
  background: #fff;
  color: var(--color-primary);
}
.btn-lg {
  padding: 0.9375rem 2rem;
  font-size: 1rem;
}
.badge {
  display: inline-block;
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 0.3rem 0.8rem;
  border-radius: var(--radius-pill);
}
.section-tag {
  display: inline-block;
  background: var(--color-secondary-light);
  color: var(--color-secondary);
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 0.35rem 1rem;
  border-radius: var(--radius-pill);
  margin-bottom: 0.75rem;
  letter-spacing: 0.02em;
}
.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 3rem;
}
.section-head h2 {
  font-size: clamp(1.5rem, 3.5vw, 2.25rem);
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-text);
  margin-bottom: 0.75rem;
}
.section-head p {
  color: var(--color-text-muted);
  font-size: 1rem;
  line-height: 1.7;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition);
}
.site-header:hover {
  box-shadow: var(--shadow-sm);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 16px;
}
.logo {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.01em;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 6px;
}
.logo::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 3px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  display: inline-block;
  flex-shrink: 0;
}
.logo:hover {
  color: var(--color-primary);
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.nav-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text);
  position: relative;
  padding: 0.25rem 0;
  transition: color var(--transition);
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 100%;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.25s ease;
}
.nav-link:hover {
  color: var(--color-primary);
}
.nav-link:hover::after,
.nav-link.active::after {
  transform: scaleX(1);
}
.nav-link.active {
  color: var(--color-primary);
  font-weight: 600;
}
.nav-cta {
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-md);
  padding: 0.625rem 1.375rem;
  font-weight: 600;
  font-size: 0.9rem;
  transition: all var(--transition);
  border: 1.5px solid var(--color-primary);
  white-space: nowrap;
}
.nav-cta:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(232,84,30,0.3);
}
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  align-items: center;
  border-radius: var(--radius-md);
  transition: background var(--transition);
}
.nav-toggle:hover {
  background: var(--color-primary-light);
}
.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all 0.3s ease;
}
.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}
.hero {
  position: relative;
  background: linear-gradient(120deg, var(--color-bg) 0%, #fff8f2 55%, var(--color-primary-light) 100%);
  padding: 4rem 0 5rem;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, rgba(232,84,30,0.08) 0%, transparent 70%);
  top: -160px;
  right: -120px;
  border-radius: 50%;
  pointer-events: none;
}
.hero::after {
  content: "";
  position: absolute;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(30,142,158,0.08) 0%, transparent 70%);
  bottom: -80px;
  left: -60px;
  border-radius: 50%;
  pointer-events: none;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  position: relative;
  z-index: 2;
}
.hero-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-primary);
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 0.4rem 1rem;
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-sm);
  margin-bottom: 1.25rem;
}
.hero-badge::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--color-success);
  border-radius: 50%;
  box-shadow: 0 0 0 3px rgba(47,158,110,0.2);
}
.hero h1 {
  font-size: clamp(1.9rem, 5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--color-text);
  margin-bottom: 1.25rem;
  letter-spacing: -0.01em;
}
.hero h1 span {
  color: var(--color-primary);
}
.hero-desc {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  max-width: 540px;
  margin-bottom: 2rem;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
}
.hero-trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-top: 2.25rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}
.hero-trust-row .trust-point {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}
.hero-trust-row .trust-point strong {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
}
.hero-trust-row .trust-point span {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}
.hero-visual {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  min-height: 360px;
  background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: flex-end;
  padding: 1.5rem;
}
.hero-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(23,19,16,0.75) 0%, rgba(23,19,16,0.15) 50%, rgba(23,19,16,0) 100%);
  border-radius: 20px;
}
.hero-visual .hero-visual-card {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  width: 100%;
}
.hero-visual .hero-float-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  z-index: 3;
  background: rgba(255,255,255,0.92);
  color: var(--color-primary);
  font-size: 0.8125rem;
  font-weight: 700;
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(6px);
}
.hero-visual .hero-float-badge::before {
  content: "● ";
  color: var(--color-success);
  font-size: 0.7rem;
  vertical-align: middle;
}
.hero-visual .hero-visual-label {
  color: rgba(255,255,255,0.9);
  font-size: 0.875rem;
  line-height: 1.5;
  max-width: 260px;
}
.hero-visual .btn {
  align-self: flex-start;
}
.stats-bar {
  background: var(--color-footer-bg);
  padding: 2.5rem 0;
  color: #fff;
}
.stats-inner {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  text-align: center;
}
.stat-item strong {
  display: block;
  font-size: 1.75rem;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
}
.stat-item span {
  display: block;
  font-size: 0.8125rem;
  color: var(--color-footer-text);
  margin-top: 0.25rem;
}
.stat-item strong em {
  font-style: normal;
  color: var(--color-warning);
}
.painpoints {
  padding: 4.5rem 0 3.5rem;
}
.grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}
.card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 1rem;
}
.card-icon.secondary {
  background: var(--color-secondary-light);
}
.card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--color-text);
}
.card p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}
.steps-section {
  padding: 3.5rem 0 4.5rem;
  background: var(--color-surface);
}
.steps-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
.step-item {
  position: relative;
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.5rem 1.5rem 4.5rem;
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}
.step-item:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}
.step-num {
  position: absolute;
  left: 1.25rem;
  top: 1.5rem;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--color-primary);
  color: #fff;
  font-weight: 700;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
.step-item h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
}
.step-item p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}
.step-arrow {
  display: none;
}
.achievements {
  padding: 4.5rem 0;
}
.achievements-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}
.achievements-text {
  order: 2;
}
.achievements-visual {
  order: 1;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  position: relative;
}
.achievements-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 280px;
}
.achievements-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(45deg, rgba(232,84,30,0.12), transparent 60%);
  pointer-events: none;
}
.achievements h2 {
  font-size: clamp(1.35rem, 2.8vw, 2rem);
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 0.75rem;
}
.achievements > .achievements-text > p {
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
}
.mini-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.875rem;
}
.mini-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1rem;
  transition: all var(--transition);
}
.mini-card:hover {
  border-color: var(--color-secondary);
  box-shadow: var(--shadow-sm);
}
.mini-card strong {
  display: block;
  font-size: 1.375rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.2;
  margin-bottom: 0.25rem;
}
.mini-card span {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}
.news-section {
  padding: 4.5rem 0;
  background: var(--color-surface);
}
.news-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}
.news-list {
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}
.news-item {
  background: var(--color-bg);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}
.news-item:hover {
  border-left: 4px solid var(--color-primary);
  transform: translateX(4px);
  box-shadow: var(--shadow-sm);
  background: #fff;
}
.news-item-main {
  flex: 1;
  min-width: 0;
}
.news-badge {
  display: inline-block;
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.2rem 0.7rem;
  border-radius: var(--radius-pill);
  margin-bottom: 0.5rem;
}
.news-title {
  font-size: 1.0625rem;
  font-weight: 600;
  line-height: 1.45;
  margin-bottom: 0.3rem;
}
.news-title a {
  color: var(--color-text);
  transition: color var(--transition);
}
.news-title a:hover {
  color: var(--color-primary);
}
.news-excerpt {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 0.5rem;
}
.news-meta {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}
.news-meta span {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}
.news-meta .news-views::before {
  content: "👁";
  font-size: 0.85em;
}
.news-meta .news-time::before {
  content: "🕒";
  font-size: 0.85em;
}
.news-arrow {
  color: var(--color-primary);
  font-size: 1.25rem;
  font-weight: 700;
  flex-shrink: 0;
  transition: transform var(--transition);
  margin-top: 0.25rem;
}
.news-item:hover .news-arrow {
  transform: translateX(4px);
}
.news-empty {
  text-align: center;
  padding: 3rem 1.5rem;
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  border: 1px dashed var(--color-border);
}
.news-empty-icon {
  font-size: 2.5rem;
  display: block;
  margin-bottom: 0.5rem;
  opacity: 0.5;
}
.news-empty p {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}
.news-aside {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.aside-card {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  border: 1px solid var(--color-border);
}
.aside-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--color-border);
}
.aside-card .aside-link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0;
  font-size: 0.875rem;
  color: var(--color-text);
  transition: all var(--transition);
  border-bottom: 1px solid rgba(232,224,216,0.5);
}
.aside-card .aside-link:last-child {
  border-bottom: none;
}
.aside-card .aside-link:hover {
  color: var(--color-primary);
  padding-left: 4px;
}
.aside-card .aside-link span {
  color: var(--color-text-muted);
  font-size: 0.75rem;
  white-space: nowrap;
}
.topics {
  padding: 4.5rem 0;
}
.topics-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}
.topic-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-height: 200px;
  background-size: cover;
  background-position: center;
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: flex-end;
  transition: all var(--transition);
}
.topic-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.topic-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(23,19,16,0.8) 0%, rgba(23,19,16,0.25) 55%, rgba(23,19,16,0) 100%);
  border-radius: var(--radius-lg);
}
.topic-card-plain::before {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  opacity: 0.95;
}
.topic-card-plain-2::before {
  background: linear-gradient(135deg, var(--color-secondary) 0%, #135e6b 100%);
  opacity: 0.95;
}
.topic-content {
  position: relative;
  z-index: 2;
  padding: 1.5rem;
  width: 100%;
}
.topic-tag {
  display: inline-block;
  background: rgba(255,255,255,0.2);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-pill);
  margin-bottom: 0.5rem;
  backdrop-filter: blur(4px);
}
.topic-card-plain .topic-tag,
.topic-card-plain-2 .topic-tag {
  background: rgba(255,255,255,0.22);
}
.topic-content h3 {
  font-size: 1.125rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.25rem;
}
.topic-content p {
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.85);
  line-height: 1.5;
  margin-bottom: 0.75rem;
}
.topic-stats {
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.9);
  background: rgba(255,255,255,0.15);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-pill);
  backdrop-filter: blur(4px);
}
.testimonials {
  padding: 4.5rem 0;
  background: var(--color-bg);
}
.testimonial-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}
.testimonial-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: all var(--transition);
}
.testimonial-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.testimonial-card::before {
  content: "“";
  position: absolute;
  top: 0.5rem;
  left: 1.25rem;
  font-size: 3.5rem;
  color: var(--color-primary-light);
  font-weight: 800;
  line-height: 1;
}
.testimonial-card p {
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--color-text);
  margin: 1rem 0 1.25rem;
  position: relative;
  z-index: 1;
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.testimonial-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--color-secondary-light);
  color: var(--color-secondary);
  font-weight: 700;
  font-size: 0.8125rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.testimonial-name {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
}
.testimonial-role {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}
.faq-section {
  padding: 4.5rem 0;
  background: var(--color-surface);
}
.faq-list {
  max-width: 780px;
  margin: 0 auto;
}
.faq-item {
  border: 1px solid var(--color-border);
  border-radius: 12px;
  margin-bottom: 0.75rem;
  background: var(--color-bg);
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}
.faq-item[open] {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
  background: var(--color-surface);
}
.faq-item summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 1rem;
  padding: 1.125rem 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  list-style: none;
  color: var(--color-text);
  transition: color 0.2s ease;
}
.faq-item summary:hover {
  color: var(--color-primary);
}
.faq-item summary::-webkit-details-marker {
  display: none;
}
.faq-item summary::after {
  content: "+";
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--color-primary);
  line-height: 1;
  transition: transform 0.25s ease;
  flex-shrink: 0;
}
.faq-item[open] summary::after {
  transform: rotate(45deg);
}
.faq-answer {
  padding: 0 1.25rem 1.25rem;
  color: var(--color-text-muted);
  line-height: 1.75;
  font-size: 0.9375rem;
}
.cta-section {
  background: linear-gradient(120deg, var(--color-footer-bg) 0%, #2a211c 100%);
  padding: 4.5rem 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(232,84,30,0.2) 0%, transparent 70%);
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  border-radius: 50%;
}
.cta-section::after {
  content: "";
  position: absolute;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(30,142,158,0.15) 0%, transparent 70%);
  bottom: -150px;
  right: -80px;
  border-radius: 50%;
}
.cta-inner {
  position: relative;
  z-index: 2;
  max-width: 680px;
  margin: 0 auto;
  padding: 0 16px;
}
.cta-inner h2 {
  font-size: clamp(1.625rem, 4vw, 2.5rem);
  font-weight: 800;
  color: #fff;
  line-height: 1.25;
  margin-bottom: 1rem;
}
.cta-inner p {
  color: rgba(255,255,255,0.75);
  font-size: 1.0625rem;
  line-height: 1.7;
  margin-bottom: 2rem;
}
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
  justify-content: center;
}
.cta-actions .btn-outline {
  color: #fff;
  border-color: rgba(255,255,255,0.6);
}
.cta-actions .btn-outline:hover {
  background: rgba(255,255,255,0.1);
  color: #fff;
  border-color: #fff;
}
.site-footer {
  background: var(--color-footer-bg);
  color: var(--color-footer-text);
  padding: 3.5rem 0 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-logo {
  font-size: 1.375rem;
  font-weight: 800;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}
.footer-logo::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 3px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  display: inline-block;
}
.footer-brand p {
  font-size: 0.9375rem;
  line-height: 1.7;
  max-width: 340px;
}
.footer-col h4 {
  font-size: 0.9375rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 1rem;
}
.footer-col ul {
  list-style: none;
}
.footer-col ul li {
  margin-bottom: 0.5rem;
}
.footer-col ul a {
  font-size: 0.875rem;
  color: var(--color-footer-text);
  transition: all var(--transition);
}
.footer-col ul a:hover {
  color: var(--color-primary);
  padding-left: 4px;
}
.footer-bottom {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  align-items: center;
  padding-top: 1.5rem;
  font-size: 0.8125rem;
  color: rgba(181,172,163,0.6);
  text-align: center;
}
.footer-bottom a {
  color: rgba(181,172,163,0.7);
}
.footer-bottom a:hover {
  color: var(--color-primary);
}
@media (min-width: 640px) {
  .grid-3,
  .testimonial-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .topics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .stats-inner {
    grid-template-columns: repeat(4, 1fr);
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 768px) {
  .hero-inner {
    grid-template-columns: 7fr 5fr;
    gap: 3rem;
  }
  .hero {
    padding: 5.5rem 0 6rem;
  }
  .hero-visual {
    min-height: 420px;
  }
  .steps-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
  }
  .step-item {
    padding: 1.5rem 1.25rem;
    text-align: center;
  }
  .step-num {
    position: static;
    margin: 0 auto 0.75rem;
    width: 40px;
    height: 40px;
  }
  .step-arrow {
    display: none;
  }
  .achievements-inner {
    grid-template-columns: 1fr 1fr;
    gap: 3.5rem;
  }
  .achievements-text {
    order: 1;
  }
  .achievements-visual {
    order: 2;
  }
  .news-layout {
    grid-template-columns: 2fr 1fr;
    gap: 2.5rem;
  }
  .topics-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .testimonial-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr;
    gap: 2rem;
  }
}
@media (min-width: 1024px) {
  .painpoints {
    padding: 6rem 0 4.5rem;
  }
  .steps-section {
    padding: 4.5rem 0 5.5rem;
  }
  .achievements {
    padding: 6rem 0;
  }
  .news-section {
    padding: 6rem 0;
  }
  .topics {
    padding: 6rem 0;
  }
  .testimonials {
    padding: 6rem 0;
  }
  .faq-section {
    padding: 6rem 0;
  }
  .cta-section {
    padding: 6rem 0;
  }
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
  .steps-grid {
    gap: 1.5rem;
  }
}
@media (max-width: 767px) {
  .main-nav {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--color-surface);
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
    padding: 1rem 1.5rem 1.5rem;
    box-shadow: var(--shadow-lg);
    border-bottom: 1px solid var(--color-border);
    z-index: 99;
  }
  .main-nav.open {
    display: flex;
  }
  .nav-link {
    width: 100%;
    padding: 0.75rem 0;
  }
  .nav-link::after {
    display: none;
  }
  .nav-link.active {
    color: var(--color-primary);
    background: var(--color-primary-light);
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    width: auto;
  }
  .nav-cta {
    display: none;
  }
  .nav-toggle {
    display: flex;
  }
  .nav-toggle + .main-nav + .nav-cta {
    display: none;
  }
  .main-nav.open + .nav-cta {
    display: block;
    margin-top: 0.5rem;
  }
  .news-item {
    flex-direction: column;
    padding: 1rem 1.25rem;
  }
  .news-arrow {
    display: none;
  }
  .hero-trust-row {
    gap: 1rem;
  }
  .hero-trust-row .trust-point strong {
    font-size: 1.125rem;
  }
}

/* roulang page: article */
:root {
  --color-primary: #E8541E;
  --color-primary-dark: #C03E12;
  --color-primary-light: #FFECE3;
  --color-secondary: #1E8E9E;
  --color-secondary-light: #E0F5F7;
  --color-bg: #F7F4F0;
  --color-surface: #FFFFFF;
  --color-text: #1E1B18;
  --color-text-muted: #6E675F;
  --color-border: #E8E0D8;
  --color-warning: #E8A020;
  --color-success: #2F9E6E;
  --color-footer-bg: #171310;
  --color-footer-text: #B5ACA3;
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 8px;
  --radius-pill: 999px;
  --shadow-sm: 0 2px 10px rgba(30, 20, 10, 0.06);
  --shadow-md: 0 6px 22px rgba(30, 20, 10, 0.09);
  --shadow-lg: 0 16px 44px rgba(30, 20, 10, 0.13);
  --container-max: 1200px;
  --space-section-mobile: 3.5rem;
  --space-section-desktop: 5.5rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", system-ui, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  font-size: 1rem;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

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

input, textarea {
  font-family: inherit;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: 16px;
  padding-right: 16px;
}

@media (min-width: 768px) {
  .container {
    padding-left: 24px;
    padding-right: 24px;
  }
}

/* 顶部导航 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 2px 12px rgba(30, 20, 10, 0.04);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  gap: 16px;
}

.logo {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.logo::before {
  content: '';
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-primary);
  margin-right: 8px;
  box-shadow: 0 0 0 4px var(--color-primary-light);
}

.main-nav {
  display: none;
  gap: 4px;
  align-items: center;
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text);
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  position: relative;
}

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

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

.nav-cta {
  display: none;
  background: var(--color-primary);
  color: #fff;
  font-weight: 600;
  font-size: 0.9375rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  box-shadow: 0 4px 14px rgba(232, 84, 30, 0.28);
}

.nav-cta:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(232, 84, 30, 0.32);
  color: #fff;
}

.nav-toggle {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

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

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

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

@media (min-width: 768px) {
  .main-nav {
    display: flex;
  }

  .nav-cta {
    display: inline-block;
  }

  .nav-toggle {
    display: none;
  }
}

.main-nav.open {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: 68px;
  left: 16px;
  right: 16px;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 16px;
  gap: 8px;
  border: 1px solid var(--color-border);
  z-index: 99;
}

.main-nav.open .nav-link {
  display: block;
  padding: 12px 16px;
  border-radius: var(--radius-md);
}

.main-nav.open .nav-cta {
  display: block;
  text-align: center;
  margin-top: 8px;
}

@media (min-width: 768px) {
  .main-nav.open {
    position: static;
    box-shadow: none;
    border: none;
    padding: 0;
    flex-direction: row;
    gap: 4px;
    background: transparent;
  }

  .main-nav.open .nav-link {
    border-radius: var(--radius-pill);
  }

  .main-nav.open .nav-cta {
    display: none;
  }
}

/* 页面横幅 */
.page-banner {
  position: relative;
  padding: 4rem 0 3.5rem;
  background-color: var(--color-footer-bg);
  overflow: hidden;
}

.banner-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-2.jpg');
  background-size: cover;
  background-position: center;
}

.banner-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(23, 19, 16, 0.86) 0%, rgba(30, 20, 10, 0.62) 60%, rgba(30, 142, 158, 0.28) 100%);
}

.banner-content {
  position: relative;
  z-index: 2;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.72);
  margin-bottom: 1.5rem;
}

.breadcrumb a {
  color: rgba(255, 255, 255, 0.86);
}

.breadcrumb a:hover {
  color: #fff;
  text-decoration: underline;
}

.crumb-sep {
  color: rgba(255, 255, 255, 0.4);
}

.crumb-current {
  color: rgba(255, 255, 255, 0.88);
  max-width: 320px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.crumb-title {
  color: #fff;
  max-width: 380px;
}

.banner-tag {
  display: inline-block;
  background: rgba(255, 255, 255, 0.16);
  color: #fff;
  font-size: 0.8125rem;
  font-weight: 500;
  padding: 5px 16px;
  border-radius: var(--radius-pill);
  letter-spacing: 0.02em;
  margin-bottom: 1rem;
  border: 1px solid rgba(255, 255, 255, 0.26);
  backdrop-filter: blur(6px);
}

.banner-title {
  font-size: clamp(1.6rem, 4.8vw, 2.7rem);
  font-weight: 800;
  line-height: 1.2;
  color: #fff;
  margin-bottom: 0.875rem;
  max-width: 780px;
}

.banner-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.875rem;
}

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

.meta-item::before {
  content: '';
  display: inline-block;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-primary);
  margin-right: 4px;
}

/* 主区域 */
.article-page-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  padding: 2.5rem 16px 4rem;
}

@media (min-width: 1024px) {
  .article-page-layout {
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 2.5rem;
    padding: 3.5rem 24px 5.5rem;
  }
}

/* 文章卡 */
.article-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 1.5rem 1.25rem;
  border: 1px solid var(--color-border);
  min-width: 0;
}

@media (min-width: 768px) {
  .article-card {
    padding: 2.5rem 2rem;
  }
}

.article-header {
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 1.5rem;
  margin-bottom: 1.75rem;
}

.article-tags {
  margin-bottom: 0.875rem;
}

.tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  letter-spacing: 0.02em;
}

.tag-primary {
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
}

.tag-secondary {
  background: var(--color-secondary-light);
  color: var(--color-secondary);
}

.article-title {
  font-size: clamp(1.4rem, 3.4vw, 2.15rem);
  font-weight: 800;
  line-height: 1.25;
  color: var(--color-text);
  margin-bottom: 1rem;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.article-lead {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text-muted);
  line-height: 1.8;
  padding: 0.875rem 1.25rem;
  background: var(--color-bg);
  border-left: 4px solid var(--color-primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

/* 正文区域 */
.article-body {
  font-size: 1rem;
  line-height: 1.85;
  color: #2D2823;
  overflow-wrap: break-word;
}

.article-body p {
  margin-bottom: 1.5em;
}

.article-body h2 {
  font-size: 1.4rem;
  font-weight: 700;
  margin: 2rem 0 0.875rem;
  color: var(--color-text);
  padding-left: 0.875rem;
  border-left: 4px solid var(--color-primary);
  line-height: 1.3;
}

.article-body h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 1.5rem 0 0.75rem;
  color: var(--color-text);
}

.article-body ul,
.article-body ol {
  margin: 1.25rem 0 1.5rem;
  padding-left: 1.5rem;
}

.article-body li {
  margin-bottom: 0.5em;
}

.article-body blockquote {
  margin: 1.5rem 0;
  padding: 1rem 1.25rem;
  background: var(--color-primary-light);
  border-left: 4px solid var(--color-primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--color-text);
  font-style: normal;
}

.article-body blockquote p {
  margin-bottom: 0.5em;
}

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

.article-body img {
  border-radius: 12px;
  margin: 1.5rem 0;
  box-shadow: var(--shadow-sm);
  max-width: 100%;
  height: auto;
}

.article-body a {
  color: var(--color-primary-dark);
  border-bottom: 1px solid rgba(232, 84, 30, 0.3);
}

.article-body a:hover {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.article-body strong {
  font-weight: 700;
  color: var(--color-text);
}

.article-footer {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* 内容未找到 */
.not-found {
  text-align: center;
  padding: 3.5rem 1rem;
}

.not-found-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.not-found h2 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--color-text);
}

.not-found p {
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 0.875rem 1.75rem;
  border-radius: var(--radius-md);
  transition: all 0.25s ease;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 4px 16px rgba(232, 84, 30, 0.28);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(232, 84, 30, 0.3);
}

.btn-outline {
  border: 1.5px solid var(--color-primary);
  color: var(--color-primary-dark);
  background: transparent;
}

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

.btn-outline-light {
  border: 1.5px solid rgba(255, 255, 255, 0.6);
  color: #fff;
  background: transparent;
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  transform: translateY(-1px);
}

.btn-block {
  width: 100%;
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* 侧边栏 */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  min-width: 0;
}

.sidebar-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.25rem;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.sidebar-card h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--color-text);
  padding-bottom: 0.625rem;
  border-bottom: 2px solid var(--color-bg);
  position: relative;
}

.sidebar-card h3::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 36px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
}

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

.topic-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0.75rem 0.5rem;
  border-bottom: 1px solid var(--color-border);
  transition: background 0.2s ease;
  border-radius: var(--radius-sm);
}

.topic-item:last-child {
  border-bottom: none;
}

.topic-item:hover {
  background: var(--color-bg);
}

.topic-rank {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  color: var(--color-text-muted);
  font-size: 0.8125rem;
  font-weight: 700;
  flex-shrink: 0;
}

.topic-item:nth-child(1) .topic-rank {
  background: var(--color-primary);
  color: #fff;
}

.topic-item:nth-child(2) .topic-rank {
  background: var(--color-warning);
  color: #fff;
}

.topic-item:nth-child(3) .topic-rank {
  background: var(--color-secondary);
  color: #fff;
}

.topic-link {
  flex: 1;
  font-size: 0.875rem;
  line-height: 1.4;
  color: var(--color-text);
  word-break: break-all;
}

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

.topic-heat {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  white-space: nowrap;
  flex-shrink: 0;
}

.sidebar-cta {
  background: linear-gradient(135deg, var(--color-primary-light), #FFF7F2);
  border: 1px solid rgba(232, 84, 30, 0.15);
}

.sidebar-cta h3 {
  border-bottom-color: rgba(232, 84, 30, 0.14);
}

.sidebar-cta p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
  line-height: 1.7;
}

/* 相关阅读 */
.related-section {
  padding: 3.5rem 0;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
}

@media (min-width: 768px) {
  .related-section {
    padding: 5.5rem 0;
  }
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.75rem;
}

.section-header h2 {
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--color-text);
  position: relative;
  padding-left: 1rem;
}

.section-header h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 24px;
  background: var(--color-primary);
  border-radius: 4px;
}

.section-more {
  font-size: 0.875rem;
  color: var(--color-primary-dark);
  font-weight: 600;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  background: var(--color-primary-light);
  white-space: nowrap;
}

.section-more:hover {
  background: var(--color-primary);
  color: #fff;
}

.related-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 640px) {
  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .related-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.related-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: block;
}

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

.related-thumb {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  position: relative;
}

.related-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

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

.related-body {
  padding: 1.25rem 1.25rem 1.1rem;
}

.related-body .tag {
  margin-bottom: 0.625rem;
}

.related-body h3 {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--color-text);
  margin-bottom: 0.5rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-card:hover .related-body h3 {
  color: var(--color-primary);
}

.related-date {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

/* 最终 CTA */
.final-cta {
  background: linear-gradient(135deg, #E8541E 0%, #C03E12 100%);
  padding: 4rem 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.final-cta::before {
  content: '';
  position: absolute;
  top: -60%;
  right: -20%;
  width: 420px;
  height: 420px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 50%;
  pointer-events: none;
}

.final-cta::after {
  content: '';
  position: absolute;
  bottom: -80%;
  left: -10%;
  width: 320px;
  height: 320px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 50%;
  pointer-events: none;
}

.final-cta .container {
  position: relative;
  z-index: 1;
}

.final-cta h2 {
  font-size: clamp(1.5rem, 3.5vw, 2.2rem);
  color: #fff;
  font-weight: 800;
  margin-bottom: 0.875rem;
}

.final-cta p {
  color: rgba(255, 255, 255, 0.88);
  font-size: 1rem;
  margin-bottom: 2rem;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

.cta-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
}

.final-cta .btn-primary {
  background: #fff;
  color: var(--color-primary-dark);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.16);
}

.final-cta .btn-primary:hover {
  background: var(--color-footer-bg);
  color: #fff;
}

/* 页脚 */
.site-footer {
  background: var(--color-footer-bg);
  color: var(--color-footer-text);
  padding: 4rem 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
  }
}

.footer-logo {
  font-size: 1.3rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 0.75rem;
}

.footer-logo::before {
  content: '';
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-primary);
  margin-right: 8px;
  box-shadow: 0 0 0 4px rgba(232, 84, 30, 0.2);
}

.footer-brand p {
  font-size: 0.875rem;
  line-height: 1.75;
  max-width: 320px;
}

.footer-col h4 {
  color: #fff;
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

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

.footer-col li {
  margin-bottom: 0.625rem;
}

.footer-col a {
  font-size: 0.875rem;
  color: var(--color-footer-text);
}

.footer-col a:hover {
  color: #fff;
  text-decoration: underline;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  padding: 1.5rem 0;
  font-size: 0.8125rem;
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.5);
}

.footer-bottom a:hover {
  color: #fff;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
  }
}

/* 焦点样式 */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* 通用动效 */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease forwards;
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}