/* roulang page: index */
:root {
  --page-bg: #F5F8FC;
  --primary: #3B7DD8;
  --primary-dark: #2B5FA8;
  --primary-light: #E0EAF5;
  --accent: #C8A45D;
  --text-main: #2A3441;
  --text-secondary: #68788C;
  --border-color: #DCE5EF;
  --card-bg: #FFFFFF;
  --footer-bg: #1F2A38;
  --footer-text: #8A9CB0;
  --radius-card: 8px;
  --radius-btn: 4px;
  --radius-panel: 12px;
  --shadow-sm: 0 2px 12px rgba(43, 95, 168, 0.06);
  --shadow-md: 0 6px 24px rgba(43, 95, 168, 0.12);
  --transition: all 0.3s ease;
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--page-bg);
  color: var(--text-main);
  line-height: 1.6;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}
a:hover {
  color: var(--primary);
}
button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}
input {
  font-family: inherit;
}
ul {
  list-style: none;
}
.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}
.section {
  padding: 88px 0;
}
.section-gray {
  background: var(--page-bg);
}
.section-blue {
  background: var(--primary-light);
}
.section-header {
  margin-bottom: 48px;
  max-width: 640px;
}
.section-header.with-link {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  max-width: 100%;
  gap: 24px;
}
.section-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.3;
  margin-bottom: 8px;
}
.section-subtitle {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}
.section-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  white-space: nowrap;
}
.section-link:hover {
  border-bottom-color: var(--primary);
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 28px;
  background: var(--primary);
  color: #fff;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 500;
  border: 1px solid var(--primary);
  transition: var(--transition);
  white-space: nowrap;
}
.btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn-primary:active {
  transform: translateY(1px);
  box-shadow: none;
}
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 28px;
  background: #fff;
  color: var(--primary);
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 500;
  border: 1px solid var(--primary);
  transition: var(--transition);
  white-space: nowrap;
}
.btn-secondary:hover {
  background: var(--primary-light);
  border-color: var(--primary-dark);
  transform: translateY(-1px);
}
.btn-secondary:active {
  transform: translateY(1px);
}
.input-field,
.cta-input {
  height: 44px;
  padding: 0 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-btn);
  background: #fff;
  font-size: 14px;
  color: var(--text-main);
  transition: var(--transition);
  outline: none;
}
.input-field:focus,
.cta-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(59, 125, 216, 0.15);
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #fff;
  border-bottom: 1px solid var(--border-color);
}
.site-header.scrolled {
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(8px);
  box-shadow: var(--shadow-sm);
}
.header-top {
  height: 40px;
  border-bottom: 1px solid var(--border-color);
}
.header-top-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 16px;
}
.brand-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}
.logo-mark {
  width: 24px;
  height: 24px;
  background: var(--primary);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.5px;
}
.logo-text {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: 0.3px;
}
.header-tools {
  display: flex;
  align-items: center;
  gap: 14px;
}
.header-search {
  display: flex;
  align-items: center;
  position: relative;
}
.header-search input {
  width: 180px;
  height: 28px;
  padding: 0 30px 0 10px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background: var(--page-bg);
  font-size: 12px;
  color: var(--text-main);
  transition: var(--transition);
  outline: none;
}
.header-search input:focus {
  width: 240px;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(59, 125, 216, 0.12);
  background: #fff;
}
.header-search button {
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  color: var(--text-secondary);
  transition: var(--transition);
}
.header-search button:hover {
  color: var(--primary);
}
.hot-keywords {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-secondary);
}
.hot-label {
  color: var(--text-secondary);
  font-weight: 500;
  margin-right: 2px;
}
.hot-keywords a {
  background: var(--page-bg);
  border-radius: 3px;
  padding: 2px 6px;
  font-size: 12px;
  color: var(--text-secondary);
  transition: var(--transition);
}
.hot-keywords a:hover {
  background: var(--primary-light);
  color: var(--primary);
}
.header-bottom {
  height: 48px;
}
.header-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}
.main-nav {
  display: flex;
  align-items: center;
  height: 100%;
  gap: 0;
}
.main-nav .nav-link {
  display: flex;
  align-items: center;
  height: 100%;
  padding: 0 20px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-main);
  position: relative;
  white-space: nowrap;
}
.main-nav .nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 16px;
  right: 16px;
  height: 2px;
  background: var(--primary);
  border-radius: 1px;
  opacity: 0;
  transition: var(--transition);
}
.main-nav .nav-link:hover,
.main-nav .nav-link.active {
  color: var(--primary);
}
.main-nav .nav-link:hover::after,
.main-nav .nav-link.active::after {
  opacity: 1;
}
.nav-toggle {
  display: none;
  width: 36px;
  height: 36px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  align-items: center;
  justify-content: center;
  color: var(--text-main);
  transition: var(--transition);
}
.nav-toggle:hover {
  border-color: var(--primary);
  color: var(--primary);
}
.hero {
  background-color: #E9F0F8;
  padding: 72px 0 64px;
  overflow: hidden;
  position: relative;
}
.hero-grid {
  display: flex;
  align-items: center;
  gap: 56px;
}
.hero-content {
  flex: 1;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 12px;
  font-weight: 500;
  padding: 5px 12px;
  border-radius: 4px;
  margin-bottom: 18px;
}
.hero-title {
  font-size: 36px;
  font-weight: 800;
  line-height: 1.3;
  color: var(--text-main);
  margin-bottom: 16px;
}
.hero-subtitle {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-secondary);
  max-width: 460px;
  margin-bottom: 28px;
}
.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.live-bar {
  display: flex;
  align-items: center;
  margin-top: 28px;
  background: #fff;
  border-left: 3px solid var(--accent);
  padding: 12px 16px;
  border-radius: 0 8px 8px 0;
  max-width: 480px;
  font-size: 13px;
  color: var(--text-secondary);
  box-shadow: var(--shadow-sm);
}
.live-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #4CAF50;
  margin-right: 10px;
  flex-shrink: 0;
  animation: pulseDot 1.5s infinite;
}
@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}
.hero-visual {
  flex: 1;
  position: relative;
}
.hero-visual img {
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  width: 100%;
  height: 340px;
  object-fit: cover;
}
.hero-info-card {
  position: absolute;
  bottom: 22px;
  left: -28px;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(6px);
  border-radius: 12px;
  padding: 14px 18px;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 10px;
}
.info-check {
  width: 30px;
  height: 30px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  flex-shrink: 0;
}
.hero-info-card strong {
  display: block;
  font-size: 14px;
  color: var(--text-main);
}
.hero-info-card p {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 2px;
}
.brand-story {
  background: #fff;
}
.story-grid {
  display: flex;
  gap: 64px;
  align-items: center;
}
.story-content {
  flex: 55%;
}
.story-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 500;
  color: var(--primary);
  background: var(--primary-light);
  padding: 5px 12px;
  border-radius: 4px;
  margin-bottom: 14px;
}
.story-content .section-title {
  margin-bottom: 18px;
}
.story-text {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 24px;
}
.story-quote {
  border-left: 3px solid var(--primary);
  background: var(--primary-light);
  padding: 16px 20px;
  border-radius: 0 8px 8px 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-main);
  margin: 0;
}
.story-visual {
  flex: 45%;
}
.story-visual img {
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  width: 100%;
  height: 320px;
  object-fit: cover;
}
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.service-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-card);
  padding: 28px 24px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.service-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: var(--primary-light);
}
.service-icon {
  width: 48px;
  height: 48px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}
.service-card-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 10px;
}
.service-card-text {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 20px;
}
.service-card-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: var(--transition);
}
.service-card-link:hover {
  color: var(--primary-dark);
  gap: 8px;
}
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.news-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.news-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.news-thumb {
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: var(--primary-light);
}
.news-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.news-card:hover .news-thumb img {
  transform: scale(1.03);
}
.news-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.category-tag {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 12px;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: 4px;
  margin-bottom: 10px;
  align-self: flex-start;
}
.news-title {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.45;
  color: var(--text-main);
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-title a:hover {
  color: var(--primary);
}
.news-summary {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 14px;
  flex: 1;
}
.news-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 12px;
  border-top: 1px solid var(--border-color);
}
.news-date {
  font-size: 12px;
  color: var(--text-secondary);
}
.news-more {
  font-size: 13px;
  font-weight: 500;
  color: var(--primary);
}
.news-more:hover {
  color: var(--primary-dark);
}
.news-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 64px 24px;
  background: #fff;
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-card);
  color: var(--text-secondary);
  font-size: 16px;
}
.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}
.trust-item {
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-card);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.trust-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.trust-number {
  font-size: 32px;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 6px;
  line-height: 1.2;
}
.trust-label {
  font-size: 14px;
  color: var(--text-secondary);
}
.trust-brands {
  text-align: center;
  padding: 28px 24px;
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-sm);
}
.brands-label {
  font-size: 13px;
  color: var(--text-secondary);
  display: block;
  margin-bottom: 16px;
}
.brands-line {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px 32px;
  font-size: 14px;
  color: #A6B3C2;
  font-weight: 500;
}
.faq-grid {
  max-width: 820px;
  margin: 0 auto;
}
.faq-item {
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-card);
  margin-bottom: 12px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item.active {
  border-color: var(--primary-light);
  box-shadow: var(--shadow-sm);
}
.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: 16px 20px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-main);
  background: transparent;
  text-align: left;
  transition: var(--transition);
}
.faq-question:hover {
  color: var(--primary);
}
.faq-icon {
  width: 18px;
  height: 18px;
  position: relative;
  flex-shrink: 0;
  margin-left: 16px;
}
.faq-icon::before,
.faq-icon::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--primary);
  border-radius: 1px;
}
.faq-icon::before {
  width: 14px;
  height: 2px;
}
.faq-icon::after {
  width: 2px;
  height: 14px;
  transition: transform 0.3s ease;
}
.faq-item.active .faq-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}
.faq-answer {
  max-height: 0;
  padding: 0 20px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
}
.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 0 20px 18px;
}
.cta-panel {
  background: linear-gradient(180deg, #3B7DD8 0%, #2B5FA8 100%);
  border-radius: var(--radius-panel);
  padding: 56px 48px;
  position: relative;
  overflow: hidden;
}
.cta-panel::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 220px;
  height: 220px;
  background: url('/assets/images/backpic/back-2.png') no-repeat center center / cover;
  opacity: 0.14;
  border-radius: 50%;
}
.cta-grid {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
}
.cta-content {
  flex: 1;
}
.cta-title {
  font-size: 24px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
}
.cta-text {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.85);
  max-width: 420px;
}
.cta-form-wrap {
  flex: 1;
  max-width: 380px;
}
.cta-form {
  display: flex;
  gap: 10px;
  margin-bottom: 14px;
}
.cta-input {
  flex: 1;
  border-color: rgba(255, 255, 255, 0.35);
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
}
.cta-input::placeholder {
  color: rgba(255, 255, 255, 0.75);
}
.cta-input:focus {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.22);
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.18);
}
.cta-subscribe {
  background: #fff;
  color: var(--primary);
  border-color: #fff;
  flex-shrink: 0;
}
.cta-subscribe:hover {
  background: var(--primary-light);
  color: var(--primary-dark);
  border-color: var(--primary-light);
}
.cta-entry {
  width: 100%;
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.7);
}
.cta-entry:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: #fff;
  color: #fff;
}
.form-status {
  display: none;
  align-items: center;
  justify-content: center;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-btn);
  color: #fff;
  font-size: 14px;
  margin-top: 12px;
}
.form-status.error {
  background: rgba(220, 80, 80, 0.3);
}
.site-footer {
  background: var(--footer-bg);
  color: var(--footer-text);
  padding: 64px 0 0;
  margin-top: 88px;
}
.footer-main {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-logo {
  display: inline-block;
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 14px;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--footer-text);
  margin-top: 12px;
}
.footer-column .footer-title {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
}
.footer-links li {
  font-size: 14px;
  line-height: 2.2;
}
.footer-links a {
  color: var(--footer-text);
  transition: var(--transition);
}
.footer-links a:hover {
  color: #fff;
  padding-left: 4px;
}
.footer-info {
  font-size: 14px;
  line-height: 1.8;
  color: var(--footer-text);
}
.footer-bottom {
  padding: 20px 0;
  text-align: center;
  font-size: 12px;
  color: var(--footer-text);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}
.footer-bottom p {
  font-size: 12px;
  color: var(--footer-text);
}
@media (max-width: 1024px) {
  .hero-grid {
    gap: 32px;
  }
  .hero-title {
    font-size: 30px;
  }
  .hero-visual img {
    height: 280px;
  }
  .service-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .news-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-main {
    grid-template-columns: repeat(2, 1fr);
  }
  .cta-grid {
    flex-direction: column;
    gap: 32px;
  }
  .cta-form-wrap {
    max-width: 100%;
    width: 100%;
  }
}
@media (max-width: 768px) {
  .section {
    padding: 64px 0;
  }
  .hero {
    padding: 48px 0;
  }
  .hero-grid {
    flex-direction: column;
  }
  .hero-title {
    font-size: 24px;
  }
  .hero-visual {
    width: 100%;
  }
  .hero-visual img {
    height: 220px;
  }
  .hero-info-card {
    left: 12px;
    bottom: 12px;
  }
  .story-grid {
    flex-direction: column;
    gap: 32px;
  }
  .story-content {
    flex: auto;
  }
  .story-visual {
    flex: auto;
  }
  .service-grid {
    grid-template-columns: 1fr;
  }
  .news-grid {
    grid-template-columns: 1fr;
  }
  .trust-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-main {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .header-tools {
    gap: 8px;
  }
  .hot-keywords {
    display: none;
  }
  .header-search input {
    width: 120px;
  }
  .header-search input:focus {
    width: 160px;
  }
  .nav-toggle {
    display: flex;
  }
  .main-nav {
    display: none;
    position: absolute;
    top: 88px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    height: auto;
    box-shadow: var(--shadow-md);
    border-bottom: 1px solid var(--border-color);
  }
  .main-nav.open {
    display: flex;
  }
  .main-nav .nav-link {
    height: 48px;
    padding: 0 24px;
    border-bottom: 1px solid var(--border-color);
  }
  .main-nav .nav-link::after {
    display: none;
  }
  .main-nav .nav-link.active,
  .main-nav .nav-link:hover {
    background: var(--primary-light);
  }
  .cta-panel {
    padding: 40px 24px;
  }
  .cta-form {
    flex-direction: column;
  }
  .cta-subscribe {
    width: 100%;
  }
  .section-header.with-link {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}
@media (max-width: 520px) {
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  .hero-actions .btn-primary,
  .hero-actions .btn-secondary {
    width: 100%;
  }
  .trust-grid {
    grid-template-columns: 1fr;
  }
  .brands-line {
    gap: 12px 20px;
  }
  .header-search input {
    width: 90px;
  }
  .header-search input:focus {
    width: 130px;
  }
  .service-card {
    padding: 20px;
  }
}

/* roulang page: category1 */
:root {
  --page-bg: #F5F8FC;
  --primary: #3B7DD8;
  --primary-dark: #2B5FA8;
  --secondary: #E0EAF5;
  --accent: #C8A45D;
  --text-main: #2A3441;
  --text-sub: #68788C;
  --border: #DCE5EF;
  --card-bg: #FFFFFF;
  --footer-bg: #1F2A38;
  --radius-card: 8px;
  --radius-btn: 4px;
  --radius-panel: 12px;
  --shadow-card: 0 2px 12px rgba(43, 95, 168, 0.06);
  --shadow-hover: 0 6px 24px rgba(43, 95, 168, 0.12);
  --transition: all 0.3s ease;
  --container: 1240px;
  --space: 92px;
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--page-bg);
  color: var(--text-main);
  font-size: 15px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}
img {
  max-width: 100%;
  display: block;
}
ul, ol {
  list-style: none;
}
button, input {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
  background: none;
}
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.header-top {
  border-bottom: 1px solid var(--border);
  background: #fff;
}
.header-top-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 40px;
  gap: 16px;
}
.brand-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}
.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  background: var(--primary);
  color: #fff;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.5px;
  border-radius: var(--radius-btn);
}
.logo-text {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  white-space: nowrap;
}
.header-tools {
  display: flex;
  align-items: center;
  gap: 18px;
}
.header-search {
  display: flex;
  align-items: center;
  background: #f2f5f9;
  border: 1px solid var(--border);
  border-radius: var(--radius-btn);
  padding: 4px 10px;
  width: 180px;
  transition: var(--transition);
}
.header-search:focus-within {
  width: 240px;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(59, 125, 216, 0.15);
  background: #fff;
}
.header-search input {
  flex: 1;
  border: none;
  background: transparent;
  font-size: 13px;
  color: var(--text-main);
  padding: 4px 0;
}
.header-search input::placeholder {
  color: var(--text-sub);
}
.header-search button {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-sub);
  cursor: pointer;
  transition: var(--transition);
}
.header-search button:hover {
  color: var(--primary);
}
.hot-keywords {
  display: flex;
  align-items: center;
  gap: 10px;
}
.hot-label {
  font-size: 12px;
  color: var(--text-sub);
  background: #F0F3F8;
  border-radius: 4px;
  padding: 2px 8px;
}
.hot-keywords a {
  font-size: 13px;
  color: var(--text-sub);
}
.hot-keywords a:hover {
  color: var(--primary);
}
.header-bottom {
  background: #fff;
}
.header-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 48px;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-main);
  padding: 12px 2px;
  position: relative;
  white-space: nowrap;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--primary);
  border-radius: 3px 3px 0 0;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}
.nav-link:hover {
  color: var(--primary);
}
.nav-link.active {
  color: var(--primary);
  font-weight: 600;
}
.nav-link.active::after {
  transform: scaleX(1);
}
.nav-toggle {
  display: none;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-btn);
  cursor: pointer;
  color: var(--text-main);
}
.nav-toggle:hover {
  background: var(--secondary);
}
/* ===== Category Hero ===== */
.category-hero {
  background: linear-gradient(135deg, #E9F0F8 0%, #F5F8FC 100%);
  border-bottom: 1px solid var(--border);
  padding: 64px 0;
}
.category-hero-inner {
  display: flex;
  align-items: flex-start;
  gap: 48px;
}
.category-hero-text {
  flex: 1;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--secondary);
  color: var(--primary);
  font-size: 12px;
  font-weight: 500;
  padding: 4px 12px;
  border-radius: 4px;
  margin-bottom: 16px;
  letter-spacing: 1px;
}
.category-hero h1 {
  font-size: 32px;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.3;
  margin-bottom: 14px;
}
.category-hero .hero-desc {
  font-size: 15px;
  color: var(--text-sub);
  line-height: 1.8;
  max-width: 640px;
  margin-bottom: 24px;
}
.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 28px;
  background: var(--primary);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-btn);
  cursor: pointer;
  transition: var(--transition);
  border: none;
}
.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(59, 125, 216, 0.22);
}
.btn-primary:active {
  transform: translateY(0);
}
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 28px;
  background: #fff;
  color: var(--primary);
  font-size: 15px;
  font-weight: 600;
  border: 1px solid var(--primary);
  border-radius: var(--radius-btn);
  cursor: pointer;
  transition: var(--transition);
}
.btn-secondary:hover {
  background: var(--secondary);
}
.btn-secondary:active {
  transform: translateY(1px);
}
.category-hero-pic {
  flex-shrink: 0;
  width: 420px;
  height: 240px;
  border-radius: var(--radius-panel);
  overflow: hidden;
  background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  position: relative;
  box-shadow: var(--shadow-card);
}
.category-hero-pic::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(47, 77, 120, 0.25), transparent 60%);
}
/* ===== Page Main ===== */
.page-main {
  padding: 72px 0;
}
.section-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
  line-height: 1.4;
}
.section-subtitle {
  font-size: 14px;
  color: var(--text-sub);
  margin-bottom: 32px;
  line-height: 1.7;
}
/* ===== Guide Points ===== */
.points-section {
  margin-bottom: 72px;
}
.points-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.point-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 24px;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}
.point-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}
.point-icon {
  width: 42px;
  height: 42px;
  background: var(--secondary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  margin-bottom: 16px;
  font-size: 18px;
  font-weight: 700;
}
.point-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 10px;
  line-height: 1.5;
}
.point-card p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-sub);
}
/* ===== Content List (vertical) ===== */
.list-section {
  background: #fff;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 72px 0;
  margin-bottom: 72px;
}
.list-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 32px;
  flex-wrap: wrap;
  gap: 12px;
}
.list-head .section-title {
  margin-bottom: 0;
}
.list-more {
  font-size: 14px;
  color: var(--primary);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.list-more:hover {
  color: var(--primary-dark);
}
.content-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.content-row {
  display: flex;
  gap: 20px;
  padding: 24px 0;
  border-bottom: 1px dashed var(--border);
  transition: var(--transition);
  align-items: flex-start;
}
.content-row:last-child {
  border-bottom: none;
  padding-bottom: 8px;
}
.content-row:hover {
  background: #F8FBFE;
}
.row-thumb {
  flex-shrink: 0;
  width: 120px;
  height: 80px;
  border-radius: var(--radius-card);
  overflow: hidden;
  background: linear-gradient(135deg, #E9F0F8, #DEE8F4);
  position: relative;
}
.row-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.content-row:hover .row-thumb img {
  transform: scale(1.04);
}
.row-body {
  flex: 1;
  min-width: 0;
}
.row-body h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.5;
  margin-bottom: 8px;
  transition: var(--transition);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.content-row:hover .row-body h3 {
  color: var(--primary);
}
.row-body p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.row-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 12px;
  color: var(--text-sub);
}
.row-time {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.row-tag {
  display: inline-block;
  background: var(--secondary);
  color: var(--primary);
  font-size: 12px;
  padding: 2px 10px;
  border-radius: 4px;
}
.row-link {
  margin-left: auto;
  font-size: 13px;
  color: var(--primary);
  font-weight: 500;
  white-space: nowrap;
}
.row-link:hover {
  color: var(--primary-dark);
}
/* ===== Steps Section ===== */
.steps-section {
  margin-bottom: 72px;
}
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.step-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 24px;
  position: relative;
  box-shadow: var(--shadow-card);
}
.step-number {
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 1px;
  margin-bottom: 10px;
  display: block;
}
.step-item h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 8px;
}
.step-item p {
  font-size: 13px;
  color: var(--text-sub);
  line-height: 1.7;
}
/* ===== FAQ ===== */
.faq-section {
  margin-bottom: 72px;
}
.faq-list {
  max-width: 820px;
  margin: 0 auto;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-panel);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-item:last-child {
  border-bottom: none;
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-main);
  transition: var(--transition);
  gap: 16px;
}
.faq-question:hover {
  background: #F7FAFD;
  color: var(--primary);
}
.faq-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--primary);
  transition: transform 0.3s ease;
  font-weight: 300;
}
.faq-item.open .faq-icon {
  transform: rotate(45deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}
.faq-answer-inner {
  padding: 0 24px 18px;
  font-size: 13px;
  color: var(--text-sub);
  line-height: 1.7;
}
.faq-item.open .faq-answer {
  max-height: 300px;
}
/* ===== CTA ===== */
.cta-section {
  margin-bottom: 0;
}
.cta-panel {
  background: linear-gradient(135deg, #3B7DD8 0%, #2B5FA8 100%);
  border-radius: var(--radius-panel);
  padding: 56px;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.cta-text h2 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}
.cta-text p {
  font-size: 14px;
  opacity: 0.9;
  line-height: 1.7;
  max-width: 460px;
}
.cta-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 240px;
}
.cta-actions .btn-primary {
  background: #fff;
  color: var(--primary);
}
.cta-actions .btn-primary:hover {
  background: #F0F5FF;
  color: var(--primary-dark);
}
.cta-actions .btn-outline-light {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 28px;
  background: transparent;
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: var(--radius-btn);
  cursor: pointer;
  transition: var(--transition);
}
.cta-actions .btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: #fff;
}
/* ===== Footer ===== */
.site-footer {
  background: var(--footer-bg);
  color: #AAB8C8;
  padding-top: 60px;
  margin-top: 72px;
}
.footer-main {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}
.footer-logo {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  display: inline-block;
  margin-bottom: 12px;
}
.footer-brand p {
  font-size: 13px;
  line-height: 1.7;
  color: #8A9CB0;
  max-width: 280px;
}
.footer-title {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
}
.footer-links li {
  font-size: 13px;
  margin-bottom: 10px;
  color: #8A9CB0;
}
.footer-links a {
  color: #8A9CB0;
}
.footer-links a:hover {
  color: #fff;
}
.footer-info {
  font-size: 13px;
  color: #8A9CB0;
  line-height: 1.8;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 20px 0;
  text-align: center;
  font-size: 12px;
  color: #8A9CB0;
}
/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .points-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .footer-main {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .category-hero-pic {
    width: 320px;
  }
  .cta-panel {
    padding: 40px;
  }
}
@media (max-width: 768px) {
  :root {
    --space: 56px;
  }
  .header-top-inner {
    flex-wrap: wrap;
    padding: 8px 24px;
  }
  .header-search {
    width: 100%;
    order: 3;
  }
  .header-search:focus-within {
    width: 100%;
  }
  .header-tools {
    flex-wrap: wrap;
    gap: 12px;
    width: auto;
  }
  .hot-keywords {
    display: none;
  }
  .header-bottom {
    position: relative;
  }
  .nav-toggle {
    display: flex;
  }
  .main-nav {
    display: none;
    position: absolute;
    top: 48px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 8px 24px;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 8px 24px rgba(31, 42, 56, 0.08);
    gap: 0;
    z-index: 99;
  }
  .main-nav.open {
    display: flex;
  }
  .main-nav .nav-link {
    padding: 14px 4px;
    border-bottom: 1px solid var(--border);
    font-size: 15px;
  }
  .main-nav .nav-link:last-child {
    border-bottom: none;
  }
  .category-hero {
    padding: 48px 0;
  }
  .category-hero-inner {
    flex-direction: column;
    gap: 24px;
  }
  .category-hero-pic {
    width: 100%;
    height: 200px;
  }
  .category-hero h1 {
    font-size: 28px;
  }
  .content-row {
    flex-direction: column;
    gap: 12px;
    padding: 20px 0;
  }
  .row-thumb {
    width: 100%;
    height: 160px;
  }
  .row-meta {
    flex-wrap: wrap;
    gap: 8px;
  }
  .row-link {
    margin-left: 0;
  }
  .points-grid {
    grid-template-columns: 1fr;
  }
  .steps-grid {
    grid-template-columns: 1fr;
  }
  .footer-main {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .cta-panel {
    padding: 32px 24px;
    flex-direction: column;
    text-align: center;
  }
  .cta-actions {
    width: 100%;
    flex-direction: row;
  }
  .faq-question {
    padding: 16px;
    font-size: 13px;
  }
  .faq-answer-inner {
    padding: 0 16px 14px;
  }
  .page-main {
    padding: 48px 0;
  }
  .list-section {
    padding: 48px 0;
  }
}
@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }
  .brand-logo .logo-text {
    font-size: 14px;
  }
  .cta-actions {
    flex-direction: column;
  }
  .cta-actions .btn-primary,
  .cta-actions .btn-outline-light {
    width: 100%;
  }
  .hero-actions {
    width: 100%;
  }
  .btn-primary, .btn-secondary {
    flex: 1;
    padding: 0 16px;
  }
  .section-title {
    font-size: 20px;
  }
}

/* roulang page: article */
:root {
  --bg: #F5F8FC;
  --primary: #3B7DD8;
  --primary-dark: #2B5FA8;
  --primary-light: #E0EAF5;
  --accent: #C8A45D;
  --text: #2A3441;
  --text-secondary: #68788C;
  --border: #DCE5EF;
  --card-bg: #FFFFFF;
  --radius: 8px;
  --radius-sm: 4px;
  --radius-lg: 12px;
  --shadow: 0 2px 12px rgba(43, 95, 168, 0.06);
  --shadow-hover: 0 6px 24px rgba(43, 95, 168, 0.12);
  --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --container-max: 1240px;
  --trans: all 0.25s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

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

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

button,
input {
  font-family: inherit;
  font-size: inherit;
  border: none;
  background: none;
  outline: none;
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 24px;
  height: 44px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--trans);
  border: 1px solid transparent;
  white-space: nowrap;
}

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

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-hover);
}

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

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

.btn-outline:hover {
  background: var(--primary-light);
}

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

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

/* 徽章 */
.badge {
  display: inline-block;
  padding: 3px 10px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 12px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  line-height: 1.6;
}

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow 0.3s ease;
}

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

.header-top {
  border-bottom: 1px solid var(--border);
  background: #fff;
}

.header-top-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 40px;
  gap: 16px;
}

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

.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: var(--primary);
  color: #fff;
  font-size: 12px;
  font-weight: 800;
  border-radius: 6px;
  letter-spacing: 0.5px;
}

.logo-text {
  font-size: 16px;
  font-weight: 700;
  color: #1F2A38;
  white-space: nowrap;
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 16px;
  flex: 1;
  justify-content: flex-end;
}

.header-search {
  display: flex;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: var(--bg);
  height: 30px;
  padding: 0 10px;
  width: 180px;
  transition: var(--trans);
}

.header-search:focus-within {
  width: 240px;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(59, 125, 216, 0.15);
}

.header-search input {
  flex: 1;
  font-size: 13px;
  color: var(--text);
  background: transparent;
  border: none;
  outline: none;
  width: 100%;
}

.header-search input::placeholder {
  color: var(--text-secondary);
}

.header-search button {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 4px;
  border: none;
  background: none;
  transition: var(--trans);
}

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

.hot-keywords {
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}

.hot-label {
  font-size: 12px;
  color: var(--accent);
  font-weight: 600;
}

.hot-keywords a {
  font-size: 12px;
  color: var(--text-secondary);
  padding: 2px 8px;
  background: var(--bg);
  border-radius: 12px;
  transition: var(--trans);
}

.hot-keywords a:hover {
  color: var(--primary);
  background: var(--primary-light);
}

.header-bottom {
  background: #fff;
}

.header-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 48px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  display: inline-block;
  padding: 6px 18px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  border-radius: var(--radius-sm);
  position: relative;
  transition: var(--trans);
}

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

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

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 18px;
  right: 18px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  color: var(--text);
  cursor: pointer;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: #fff;
  transition: var(--trans);
}

.nav-toggle:hover {
  color: var(--primary);
  border-color: var(--primary);
}

/* ===== 面包屑 ===== */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--text-secondary);
  margin: 24px 0 16px;
  gap: 6px;
}

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

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

.breadcrumb-sep {
  color: var(--border);
}

.breadcrumb-current {
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 480px;
}

/* ===== 实时状态条 ===== */
.live-status-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 16px;
  margin: 0 0 8px;
  font-size: 13px;
  color: var(--text-secondary);
}

.live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #4CAF50;
  position: relative;
  flex-shrink: 0;
}

.live-dot::after {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  border: 2px solid rgba(76, 175, 80, 0.4);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.8); opacity: 1; }
  100% { transform: scale(1.4); opacity: 0; }
}

.live-status-bar strong {
  color: var(--text);
  font-weight: 600;
}

.live-arrow {
  margin-left: auto;
  color: var(--primary);
  font-weight: 600;
}

/* ===== 文章区域 ===== */
.article-main {
  padding-bottom: 40px;
}

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

.article-header {
  margin-bottom: 24px;
}

.article-header h1 {
  font-size: 32px;
  font-weight: 800;
  color: #1F2A38;
  line-height: 1.3;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 13px;
  color: var(--text-secondary);
}

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

.article-meta-item svg {
  color: var(--primary);
  flex-shrink: 0;
}

.article-divider {
  height: 1px;
  background: var(--border);
  margin-bottom: 32px;
}

/* 正文排版 */
.article-content {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
}

.article-content h2 {
  font-size: 20px;
  font-weight: 700;
  color: #1F2A38;
  margin: 32px 0 16px;
  padding-left: 12px;
  border-left: 3px solid var(--primary);
  line-height: 1.4;
}

.article-content h3 {
  font-size: 18px;
  font-weight: 600;
  color: #1F2A38;
  margin: 28px 0 12px;
  line-height: 1.4;
}

.article-content p {
  margin: 0 0 16px;
  color: var(--text);
}

.article-content a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

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

.article-content blockquote {
  margin: 24px 0;
  padding: 16px 20px;
  background: var(--primary-light);
  border-left: 3px solid var(--primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-secondary);
  font-size: 15px;
}

.article-content ul,
.article-content ol {
  margin: 16px 0 24px;
  padding: 0 0 0 24px;
}

.article-content ul {
  list-style: disc;
}

.article-content ol {
  list-style: decimal;
}

.article-content li {
  margin-bottom: 8px;
  line-height: 1.8;
}

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

.article-content figcaption {
  font-size: 14px;
  color: var(--text-secondary);
  text-align: center;
  margin-top: -16px;
  margin-bottom: 24px;
}

.article-content hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 32px 0;
}

/* 标签区 */
.article-tags {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.article-tag {
  padding: 4px 14px;
  background: var(--bg);
  color: var(--text-secondary);
  font-size: 13px;
  border-radius: 16px;
  transition: var(--trans);
}

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

/* 空状态 */
.article-empty {
  text-align: center;
  padding: 60px 24px;
}

.article-empty p {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

/* ===== 相关推荐 ===== */
.related-section {
  margin-bottom: 48px;
}

.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.section-head h2 {
  font-size: 24px;
  font-weight: 700;
  color: #1F2A38;
  line-height: 1.4;
}

.text-link {
  font-size: 14px;
  color: var(--primary);
  font-weight: 500;
}

.text-link:hover {
  color: var(--primary-dark);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.related-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--trans);
  display: flex;
  flex-direction: column;
}

.related-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.related-thumb {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: var(--primary-light);
}

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

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

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

.related-body h3 {
  font-size: 16px;
  font-weight: 600;
  color: #1F2A38;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin: 0;
}

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

.related-date {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: auto;
}

/* ===== CTA 区块 ===== */
.article-cta {
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, #3B7DD8 0%, #2B5FA8 100%);
  padding: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  color: #fff;
  margin-bottom: 48px;
}

.article-cta .cta-content h2 {
  font-size: 24px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 8px;
}

.article-cta .cta-content p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.85);
  max-width: 520px;
}

.article-cta .btn-light {
  margin-top: 16px;
}

/* ===== Footer ===== */
.site-footer {
  background: #1F2A38;
  color: #A8B8C8;
  padding: 56px 0 0;
  margin-top: 40px;
}

.footer-main {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand .footer-logo {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
  display: inline-block;
}

.footer-brand p {
  font-size: 13px;
  line-height: 1.7;
  color: #8A9CB0;
  max-width: 260px;
}

.footer-title {
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 10px;
  font-size: 13px;
  color: #8A9CB0;
  line-height: 1.6;
}

.footer-links a {
  color: #8A9CB0;
}

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

.footer-info {
  font-size: 13px;
  color: #8A9CB0;
  margin-bottom: 8px;
  line-height: 1.6;
}

.footer-bottom {
  text-align: center;
  padding: 20px 0;
  font-size: 12px;
  color: #8A9CB0;
}

/* ===== 响应式 ===== */
@media (min-width: 1025px) {
  .related-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 768px) and (max-width: 1024px) {
  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .article-card {
    padding: 36px;
  }

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

  .header-tools {
    gap: 10px;
  }

  .header-search {
    width: 140px;
  }

  .header-search:focus-within {
    width: 180px;
  }

  .hot-keywords a:nth-child(3) {
    display: none;
  }
}

@media (max-width: 767px) {
  .header-top-inner {
    height: auto;
    flex-wrap: wrap;
    padding: 8px 0;
    gap: 8px;
  }

  .header-tools {
    width: 100%;
    justify-content: space-between;
    flex-wrap: wrap;
  }

  .header-search {
    flex: 1;
    width: 100%;
    max-width: 200px;
  }

  .header-search:focus-within {
    width: 100%;
    max-width: 220px;
  }

  .hot-keywords {
    font-size: 12px;
  }

  .header-bottom {
    position: relative;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 8px 16px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
    z-index: 99;
  }

  .main-nav.open {
    display: flex;
  }

  .nav-link {
    padding: 12px 16px;
    border-radius: var(--radius);
  }

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

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

  .nav-toggle {
    display: flex;
  }

  .breadcrumb {
    font-size: 12px;
    margin: 16px 0 12px;
  }

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

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

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

  .article-meta {
    gap: 10px;
  }

  .article-content {
    font-size: 14px;
  }

  .article-content h2 {
    font-size: 18px;
  }

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

  .section-head h2 {
    font-size: 20px;
  }

  .article-cta {
    flex-direction: column;
    padding: 32px 24px;
    text-align: center;
  }

  .article-cta .cta-content p {
    max-width: 100%;
  }

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

@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }

  .hot-label {
    display: none;
  }

  .hot-keywords a {
    font-size: 11px;
    padding: 2px 6px;
  }

  .header-search {
    max-width: 150px;
  }

  .logo-text {
    font-size: 14px;
  }

  .logo-mark {
    width: 24px;
    height: 24px;
    font-size: 10px;
  }

  .article-card {
    padding: 20px 16px;
  }

  .article-header h1 {
    font-size: 22px;
  }

  .article-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }

  .related-body {
    padding: 16px;
  }

  .article-cta {
    padding: 28px 20px;
  }

  .article-cta .cta-content h2 {
    font-size: 20px;
  }
}

/* roulang page: category2 */
:root {
  --bg: #F5F8FC;
  --white: #FFFFFF;
  --primary: #3B7DD8;
  --primary-dark: #2B5FA8;
  --primary-light: #E0EAF5;
  --accent: #C8A45D;
  --text-main: #2A3441;
  --text-sub: #68788C;
  --border: #DCE5EF;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --shadow: 0 2px 12px rgba(43,95,168,0.06);
  --shadow-lg: 0 6px 24px rgba(43,95,168,0.12);
  --container: 1240px;
  --space-section: 88px;
  --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background: var(--bg);
  color: var(--text-main);
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

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

ul, ol {
  list-style: none;
}

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

input {
  font-family: inherit;
  outline: none;
}

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

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.header-top {
  height: 40px;
  border-bottom: 1px solid rgba(220, 229, 239, 0.7);
}

.header-top-inner {
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

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

.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: #fff;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.5px;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  line-height: 1.4;
}

.logo-text {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: 0.5px;
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 16px;
}

.header-search {
  display: flex;
  align-items: center;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0 8px;
  height: 26px;
  width: 180px;
  transition: width 0.3s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.header-search:focus-within {
  width: 240px;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(59, 125, 216, 0.15);
}

.header-search input {
  flex: 1;
  border: none;
  background: transparent;
  font-size: 13px;
  color: var(--text-main);
  width: 100%;
}

.header-search input::placeholder {
  color: #9AACBF;
}

.header-search button {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-sub);
  padding: 2px 0 2px 6px;
  flex-shrink: 0;
}

.hot-keywords {
  display: flex;
  align-items: center;
  gap: 10px;
}

.hot-label {
  font-size: 12px;
  color: var(--text-sub);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 1px 6px;
}

.hot-keywords a {
  font-size: 12px;
  color: var(--text-sub);
  white-space: nowrap;
}

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

.header-bottom {
  background: transparent;
}

.header-nav {
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.main-nav {
  display: flex;
  align-items: center;
  height: 48px;
  gap: 32px;
}

.main-nav .nav-link {
  position: relative;
  display: flex;
  align-items: center;
  height: 100%;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-main);
  white-space: nowrap;
}

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

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

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

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--white);
  color: var(--text-main);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  padding: 0 28px;
  height: 44px;
  border: 1px solid transparent;
  transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease, color 0.2s ease, border-color 0.2s ease;
  white-space: nowrap;
}

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

.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(43, 95, 168, 0.28);
}

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

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

.btn-outline:hover {
  background: var(--primary-light);
  color: var(--primary);
}

.btn-outline-light {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.8);
}

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

.btn-lg {
  height: 48px;
  padding: 0 36px;
  font-size: 15px;
}

.btn-sm {
  height: 38px;
  padding: 0 18px;
  font-size: 13px;
}

/* ---------- Badge ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 12px;
  font-weight: 500;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  line-height: 1.2;
  white-space: nowrap;
}

.badge-accent {
  background: #F4E9D3;
  color: #A3823E;
}

/* ---------- Section ---------- */
.section {
  padding: var(--space-section) 0;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 40px;
}

.section-head-left {
  max-width: 640px;
}

.section-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.3;
  margin-bottom: 8px;
}

.section-sub {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.6;
}

/* ---------- Category Hero ---------- */
.category-hero {
  background: #E9F0F8;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  position: relative;
  padding: 56px 0;
  border-bottom: 1px solid var(--border);
}

.category-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(233, 240, 248, 0.96) 0%, rgba(233, 240, 248, 0.82) 50%, rgba(233, 240, 248, 0.55) 100%);
}

.category-hero .container {
  position: relative;
  z-index: 2;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-sub);
  margin-bottom: 20px;
}

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

.breadcrumb .sep {
  color: #B8C6D6;
}

.category-hero h1 {
  font-size: 28px;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.3;
  margin-bottom: 12px;
}

.category-hero .hero-desc {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
  max-width: 620px;
}

/* ---------- Feature Cards ---------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  box-shadow: var(--shadow);
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.feature-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.feature-icon {
  width: 44px;
  height: 44px;
  background: var(--primary-light);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  margin-bottom: 18px;
}

.feature-card h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 10px;
  line-height: 1.4;
}

.feature-card p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
}

/* ---------- Split Section ---------- */
.split {
  display: grid;
  grid-template-columns: 55% 45%;
  gap: 56px;
  align-items: center;
}

.split-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
}

.split-image img {
  width: 100%;
  height: 360px;
  object-fit: cover;
}

.split-content h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 16px;
  line-height: 1.3;
}

.split-content p {
  font-size: 15px;
  color: var(--text-sub);
  line-height: 1.8;
  margin-bottom: 16px;
}

.scene-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 20px;
  margin-top: 20px;
}

.scene-list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  color: var(--text-main);
  line-height: 1.6;
}

.scene-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  background: var(--primary);
  border-radius: 50%;
}

/* ---------- Steps ---------- */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.step-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px 22px;
  position: relative;
  box-shadow: var(--shadow);
}

.step-num {
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  background: #F7EFE0;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.step-item h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 8px;
}

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

/* ---------- Article List ---------- */
.article-list {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 8px 24px 8px;
  box-shadow: var(--shadow);
}

.article-list-item {
  display: flex;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px dashed var(--border);
  align-items: center;
}

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

.article-list-thumb {
  width: 120px;
  height: 80px;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--primary-light);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-weight: 800;
  font-size: 16px;
}

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

.article-list-content {
  flex: 1;
  min-width: 0;
}

.article-list-content h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 6px;
  line-height: 1.4;
}

.article-list-content h3 a:hover {
  color: var(--primary);
}

.article-list-content p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 13px;
  color: #9AACBF;
  margin-top: 8px;
}

.article-meta a {
  color: var(--primary);
  font-weight: 500;
}

.empty-state {
  text-align: center;
  padding: 56px 20px;
  color: var(--text-sub);
  font-size: 16px;
}

.empty-state .empty-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 50%;
  color: #B8C6D6;
}

/* ---------- Pagination ---------- */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 36px;
}

.pagination a {
  min-width: 36px;
  height: 36px;
  padding: 0 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--white);
  color: var(--text-sub);
  font-size: 14px;
  transition: all 0.2s ease;
}

.pagination a:hover {
  border-color: var(--primary);
  background: var(--primary-light);
  color: var(--primary);
}

.pagination a.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  font-weight: 600;
}

/* ---------- FAQ ---------- */
.faq-wrap {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.faq-item:hover {
  border-color: #C2D4E8;
}

.faq-item.open {
  box-shadow: var(--shadow);
  border-color: #C2D4E8;
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 16px 20px;
  text-align: left;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-main);
  line-height: 1.5;
}

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

.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  background: var(--primary);
  border-radius: 2px;
}

.faq-icon::before {
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  transform: translateX(-50%);
}

.faq-icon::after {
  top: 50%;
  left: 0;
  right: 0;
  height: 2px;
  transform: translateY(-50%);
}

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

.faq-answer {
  padding: 0 20px 18px;
  font-size: 13px;
  color: var(--text-sub);
  line-height: 1.7;
  display: none;
}

.faq-item.open .faq-answer {
  display: block;
}

/* ---------- CTA ---------- */
.cta-section {
  padding: var(--space-section) 0;
}

.cta-panel {
  background: linear-gradient(180deg, #3B7DD8 0%, #2B5FA8 100%);
  border-radius: var(--radius-lg);
  padding: 56px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  box-shadow: 0 12px 32px rgba(43, 95, 168, 0.22);
}

.cta-copy h2 {
  font-size: 24px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
  line-height: 1.3;
}

.cta-copy p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.82);
  line-height: 1.7;
  max-width: 520px;
}

.cta-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}

/* ---------- Footer ---------- */
.site-footer {
  background: #1F2A38;
  color: #B8C6D6;
  padding-top: 56px;
  margin-top: 0;
}

.footer-main {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-logo {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  display: inline-block;
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 13px;
  line-height: 1.7;
  color: #8A9CB0;
  max-width: 280px;
}

.footer-title {
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
}

.footer-links li {
  margin-bottom: 10px;
  font-size: 13px;
  color: #8A9CB0;
  line-height: 1.6;
}

.footer-links a {
  color: #8A9CB0;
}

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

.footer-info {
  font-size: 13px;
  color: #8A9CB0;
  line-height: 1.6;
  margin-bottom: 6px;
}

.footer-bottom {
  text-align: center;
  padding: 20px 0;
  font-size: 12px;
  color: #6A7B8E;
}

.footer-bottom p {
  line-height: 1.6;
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  :root {
    --space-section: 72px;
  }

  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .cta-panel {
    flex-direction: column;
    align-items: flex-start;
    padding: 40px 32px;
  }
}

@media (min-width: 769px) and (max-width: 1023px) {
  .header-tools {
    gap: 12px;
  }

  .header-search {
    width: 140px;
  }

  .header-search:focus-within {
    width: 180px;
  }

  .hot-keywords {
    display: none;
  }

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

  .split-image img {
    height: 280px;
  }
}

@media (max-width: 768px) {
  :root {
    --space-section: 56px;
  }

  .header-top {
    height: auto;
    padding: 8px 0;
  }

  .header-top-inner {
    height: auto;
    flex-wrap: wrap;
    gap: 8px;
  }

  .header-tools {
    width: 100%;
    justify-content: space-between;
  }

  .header-search {
    flex: 1;
    max-width: 220px;
    width: 180px;
  }

  .header-search:focus-within {
    width: 100%;
  }

  .hot-keywords {
    display: none;
  }

  .header-bottom {
    border-top: 1px solid var(--border);
  }

  .header-nav {
    height: 48px;
  }

  .main-nav {
    position: fixed;
    top: 88px;
    right: -260px;
    width: 240px;
    height: calc(100vh - 88px);
    background: var(--white);
    flex-direction: column;
    align-items: flex-start;
    padding: 24px 20px;
    gap: 8px;
    box-shadow: -8px 0 24px rgba(43, 95, 168, 0.12);
    transition: right 0.3s ease;
    border-left: 1px solid var(--border);
    z-index: 99;
  }

  .main-nav.open {
    right: 0;
  }

  .main-nav .nav-link {
    height: 40px;
    width: 100%;
    font-size: 14px;
  }

  .main-nav .nav-link.active::after {
    left: 0;
    right: auto;
    top: 50%;
    bottom: auto;
    width: 3px;
    height: 16px;
    transform: translateY(-50%);
    border-radius: 2px;
  }

  .nav-toggle {
    display: flex;
  }

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

  .section-title {
    font-size: 21px;
  }

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

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

  .split {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .split-image img {
    height: 240px;
  }

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

  .article-list {
    padding: 4px 16px 4px;
  }

  .article-list-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
  }

  .article-list-thumb {
    width: 100%;
    height: 180px;
  }

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

  .cta-panel {
    padding: 32px 24px;
  }

  .cta-actions {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
  }

  .footer-main {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}

@media (max-width: 520px) {
  .steps-grid {
    grid-template-columns: 1fr;
  }

  .feature-card {
    padding: 22px 18px;
  }

  .category-hero h1 {
    font-size: 24px;
  }

  .category-hero {
    padding: 40px 0;
  }

  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 28px;
  }

  .btn {
    width: 100%;
  }

  .cta-actions {
    flex-direction: column;
  }
}