/* roulang page: index */
:root {
  --bg-primary: #0A0E14;
  --bg-secondary: #10161F;
  --bg-card: #131A24;
  --border-color: rgba(255, 255, 255, 0.08);
  --text-primary: #E8EAED;
  --text-secondary: #A6B0BC;
  --accent: #C9A87C;
  --accent-hover: #DFC396;
  --success: #7FB59A;
  --warning: #C47A72;
  --radius-card: 16px;
  --radius-btn: 999px;
  --shadow-card: 0 12px 40px rgba(0, 0, 0, 0.35);
  --shadow-hover: 0 20px 60px rgba(0, 0, 0, 0.45);
  --transition: 0.35s cubic-bezier(0.2, 0.6, 0.2, 1);
  --container-w: 1200px;
  --serif: 'Noto Serif SC', 'Source Han Serif SC', 'Songti SC', 'SimSun', serif;
  --sans: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent-hover); }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; }
input, textarea { font-family: inherit; }
.container { max-width: var(--container-w); margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; position: relative; }
.section-secondary { background: var(--bg-secondary); }
.section-title {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 36px;
  line-height: 1.35;
  color: var(--text-primary);
  position: relative;
  padding-left: 18px;
  margin-bottom: 16px;
}
.section-title::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 4px;
  height: 22px;
  background: var(--accent);
  border-radius: 2px;
}
.section-sub {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 640px;
  margin-bottom: 56px;
  padding-left: 18px;
  line-height: 1.7;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 30px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 500;
  border: 1px solid transparent;
  transition: all var(--transition);
  text-decoration: none;
  line-height: 1;
  gap: 8px;
}
.btn-primary {
  background: var(--accent);
  color: var(--bg-primary);
  border-color: var(--accent);
}
.btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: var(--bg-primary);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(201, 168, 124, 0.25);
}
.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.3);
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}
.btn:focus-visible, a:focus-visible {
  outline: 2px solid var(--accent-hover);
  outline-offset: 3px;
}

/* ========== 悬浮胶囊导航 ========== */
.site-header {
  position: fixed;
  top: 16px;
  left: 0;
  right: 0;
  z-index: 1000;
  display: flex;
  justify-content: center;
  padding: 0 24px;
  pointer-events: none;
}
.site-nav {
  pointer-events: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  background: rgba(10, 14, 20, 0.76);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-color);
  border-radius: 999px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  padding: 10px 24px 10px 20px;
  width: 100%;
  max-width: 1100px;
}
.brand {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 18px;
  color: var(--text-primary);
  letter-spacing: 0.02em;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 8px;
}
.brand::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px rgba(201, 168, 124, 0.6);
  flex-shrink: 0;
}
.brand:hover { color: var(--accent); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 14px;
  color: var(--text-secondary);
  transition: all var(--transition);
  position: relative;
}
.nav-link:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
}
.nav-link.active {
  color: var(--accent);
}
.nav-link.active::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  display: inline-block;
}
.nav-cta {
  padding: 10px 24px;
  font-size: 14px;
  border-radius: 999px;
  white-space: nowrap;
}
.nav-toggle {
  display: none;
  background: none;
  border: none;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  color: var(--text-primary);
  font-size: 20px;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}
.nav-toggle:hover {
  background: rgba(255, 255, 255, 0.08);
}

/* ========== Hero ========== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 160px 24px 120px;
  background: linear-gradient(rgba(10, 14, 20, 0.78), rgba(10, 14, 20, 0.85)), url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
  overflow: hidden;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 120px;
  background: linear-gradient(to bottom, transparent, var(--bg-primary));
  pointer-events: none;
}
.hero-content {
  max-width: 860px;
  position: relative;
  z-index: 2;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  border-radius: 999px;
  border: 1px solid rgba(201, 168, 124, 0.3);
  background: rgba(201, 168, 124, 0.08);
  color: var(--accent);
  font-size: 13px;
  letter-spacing: 0.04em;
  margin-bottom: 32px;
  backdrop-filter: blur(4px);
}
.hero h1 {
  font-family: var(--serif);
  font-size: 52px;
  font-weight: 600;
  line-height: 1.28;
  color: var(--text-primary);
  margin-bottom: 28px;
  letter-spacing: 0.01em;
}
.hero h1 .highlight {
  color: var(--accent);
}
.hero-sub {
  font-size: 18px;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 640px;
  margin: 0 auto 40px;
}
.hero-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}
.hero-trust {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
}
.hero-trust span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-secondary);
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--border-color);
  background: rgba(16, 22, 31, 0.6);
  backdrop-filter: blur(4px);
}
.hero-trust span::before {
  content: '✓';
  color: var(--success);
  font-size: 12px;
}

/* ========== 痛点区 ========== */
.pain-section {
  background: var(--bg-primary);
}
.pain-wrap {
  display: flex;
  gap: 80px;
  align-items: flex-start;
}
.pain-list {
  flex: 0 0 55%;
  max-width: 55%;
}
.pain-item {
  padding: 28px 0 28px 0;
  border-bottom: 1px solid var(--border-color);
  transition: background var(--transition);
}
.pain-item:first-child {
  padding-top: 0;
}
.pain-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}
.pain-num {
  font-family: var(--serif);
  font-size: 48px;
  font-weight: 300;
  color: var(--accent);
  line-height: 1;
  display: block;
  margin-bottom: 10px;
  transition: color var(--transition);
}
.pain-item:hover .pain-num {
  color: var(--accent-hover);
}
.pain-title {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.pain-desc {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
}
.pain-visual {
  flex: 0 0 45%;
  max-width: 45%;
  position: sticky;
  top: 120px;
}
.pain-visual img {
  width: 100%;
  border-radius: var(--radius-card);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-card);
  object-fit: cover;
  aspect-ratio: 4 / 5;
}

/* ========== 解决方案区 ========== */
.solution-section {
  background: var(--bg-secondary);
}
.solution-row {
  display: flex;
  align-items: center;
  gap: 80px;
  padding: 64px 0;
  border-bottom: 1px solid var(--border-color);
}
.solution-row:last-child {
  border-bottom: none;
}
.solution-row:nth-child(even) {
  flex-direction: row-reverse;
}
.solution-img {
  flex: 0 0 46%;
  max-width: 46%;
}
.solution-img img {
  width: 100%;
  border-radius: var(--radius-card);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-card);
  object-fit: cover;
  aspect-ratio: 16 / 10;
  transition: transform var(--transition), box-shadow var(--transition);
}
.solution-img:hover img {
  transform: scale(1.02);
  box-shadow: var(--shadow-hover);
}
.solution-text {
  flex: 0 0 46%;
  max-width: 46%;
}
.solution-num {
  font-family: var(--serif);
  font-size: 36px;
  font-weight: 300;
  color: var(--accent);
  display: block;
  margin-bottom: 12px;
}
.solution-text h3 {
  font-family: var(--serif);
  font-size: 26px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
}
.solution-text p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 20px;
}
.solution-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.solution-tags .tag {
  background: rgba(201, 168, 124, 0.1);
  border: 1px solid rgba(201, 168, 124, 0.25);
  color: var(--accent);
}

/* ========== 成果证据区 ========== */
.results-section {
  background: var(--bg-primary);
}
.results-list {
  max-width: 880px;
  margin: 0 auto;
}
.result-row {
  display: flex;
  align-items: baseline;
  gap: 32px;
  padding: 22px 0;
  border-bottom: 1px solid var(--border-color);
  position: relative;
}
.result-row:last-child {
  border-bottom: none;
}
.result-number {
  font-family: var(--sans);
  font-size: 64px;
  font-weight: 300;
  line-height: 1;
  color: var(--accent);
  min-width: 160px;
  letter-spacing: 0.01em;
}
.result-label {
  font-size: 18px;
  color: var(--text-primary);
  flex: 1;
  font-weight: 500;
}
.result-line {
  position: absolute;
  bottom: -1px;
  left: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  opacity: 0.5;
  transition: width 0.8s ease;
}

/* ========== 证言区 ========== */
.testimonial-section {
  background: var(--bg-secondary);
}
.testimonial-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-card);
  padding: 32px;
  box-shadow: var(--shadow-card);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  display: flex;
  flex-direction: column;
}
.testimonial-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(201, 168, 124, 0.25);
}
.testimonial-card.featured {
  grid-column: span 2;
  padding: 40px;
}
.testimonial-stars {
  color: var(--accent);
  font-size: 16px;
  letter-spacing: 2px;
  margin-bottom: 20px;
}
.testimonial-quote {
  font-size: 17px;
  line-height: 1.8;
  color: var(--text-primary);
  flex: 1;
  margin-bottom: 24px;
  font-family: var(--serif);
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 14px;
}
.testimonial-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(201, 168, 124, 0.25);
  border: 1px solid rgba(201, 168, 124, 0.3);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--accent);
  font-weight: 500;
}
.testimonial-name {
  font-size: 14px;
  color: var(--text-primary);
  font-weight: 500;
}
.testimonial-role {
  font-size: 12px;
  color: var(--text-secondary);
}

/* ========== 资讯区 ========== */
.news-section {
  background: var(--bg-primary);
}
.news-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.news-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-card);
  padding: 28px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  display: flex;
  flex-direction: column;
}
.news-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(201, 168, 124, 0.3);
}
.news-card-tags {
  margin-bottom: 14px;
}
.tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  background: rgba(201, 168, 124, 0.1);
  border: 1px solid rgba(201, 168, 124, 0.25);
  color: var(--accent);
}
.news-card-title {
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text-primary);
  margin-bottom: 12px;
}
.news-card-title a {
  color: inherit;
}
.news-card-title a:hover {
  color: var(--accent);
}
.news-card-excerpt {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border-color);
  padding-top: 16px;
}
.news-card-date {
  font-size: 13px;
  color: var(--text-secondary);
}
.news-card-link {
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap var(--transition);
}
.news-card-link:hover {
  gap: 8px;
  color: var(--accent-hover);
}
.news-empty {
  grid-column: span 2;
  border: 1px dashed rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-card);
  padding: 60px 24px;
  text-align: center;
  background: rgba(255, 255, 255, 0.02);
}
.news-empty-icon {
  font-size: 36px;
  margin-bottom: 12px;
  display: block;
}
.news-empty p {
  color: var(--text-secondary);
  font-size: 15px;
}

/* ========== FAQ ========== */
.faq-section {
  background: var(--bg-secondary);
}
.faq-wrap {
  max-width: 800px;
  margin: 0 auto;
}
.faq-item {
  border-bottom: 1px solid var(--border-color);
}
.faq-item:first-child {
  border-top: 1px solid var(--border-color);
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 24px 0;
  cursor: pointer;
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  font-size: 17px;
  font-weight: 500;
  color: var(--text-primary);
  font-family: var(--serif);
  transition: color var(--transition);
}
.faq-question:hover {
  color: var(--accent);
}
.faq-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 300;
  color: var(--accent);
  transition: transform var(--transition), background var(--transition);
}
.faq-item.active .faq-icon {
  transform: rotate(45deg);
  background: var(--accent);
  color: var(--bg-primary);
  border-color: var(--accent);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}
.faq-answer-inner {
  padding: 0 0 24px;
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.75;
  max-width: 680px;
}

/* ========== CTA ========== */
.cta-section {
  position: relative;
  padding: 120px 24px;
  text-align: center;
  background: linear-gradient(rgba(10, 14, 20, 0.82), rgba(10, 14, 20, 0.88)), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
}
.cta-section .container {
  max-width: 720px;
}
.cta-title {
  font-family: var(--serif);
  font-size: 38px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 20px;
  line-height: 1.3;
}
.cta-desc {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 40px;
}
.cta-note {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 20px;
}

/* ========== 页脚 ========== */
.site-footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--border-color);
  padding: 64px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}
.footer-brand::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px rgba(201, 168, 124, 0.5);
}
.footer-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 320px;
}
.footer-col h4 {
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
  text-transform: none;
  letter-spacing: 0.04em;
  margin-bottom: 18px;
}
.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-col a {
  font-size: 14px;
  color: var(--text-primary);
  transition: color var(--transition), padding-left var(--transition);
}
.footer-col a:hover {
  color: var(--accent);
  padding-left: 4px;
}
.footer-col .footer-contact {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
}
.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom p {
  font-size: 13px;
  color: var(--text-secondary);
}
.footer-domain {
  color: var(--text-secondary);
  opacity: 0.7;
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .hero h1 {
    font-size: 42px;
  }
  .hero-sub {
    font-size: 16px;
  }
  .pain-wrap {
    gap: 40px;
  }
  .solution-row {
    gap: 40px;
  }
  .section-title {
    font-size: 30px;
  }
  .cta-title {
    font-size: 32px;
  }
}
@media (max-width: 768px) {
  .site-header {
    top: 12px;
  }
  .site-nav {
    padding: 8px 16px;
    border-radius: 28px;
  }
  .brand {
    font-size: 16px;
  }
  .nav-links {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    background: rgba(10, 14, 20, 0.95);
    backdrop-filter: blur(14px);
    border-radius: 20px;
    border: 1px solid var(--border-color);
    padding: 16px;
    flex-direction: column;
    align-items: stretch;
    display: none;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5);
  }
  .nav-links.open {
    display: flex;
  }
  .nav-link {
    padding: 12px 16px;
    font-size: 15px;
  }
  .nav-cta {
    display: none;
  }
  .nav-cta.open {
    display: inline-flex;
    margin-top: 8px;
    justify-content: center;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .hero {
    padding: 140px 20px 80px;
    min-height: auto;
  }
  .hero h1 {
    font-size: 32px;
    line-height: 1.35;
  }
  .hero-sub {
    font-size: 15px;
  }
  .hero-actions {
    flex-direction: column;
    align-items: center;
  }
  .hero-actions .btn {
    width: 100%;
    max-width: 260px;
  }
  .hero-trust {
    flex-direction: column;
    align-items: center;
  }
  .section {
    padding: 64px 0;
  }
  .section-title {
    font-size: 26px;
  }
  .pain-wrap {
    flex-direction: column;
    gap: 24px;
  }
  .pain-list {
    flex: 0 0 100%;
    max-width: 100%;
  }
  .pain-visual {
    flex: 0 0 100%;
    max-width: 100%;
    position: static;
  }
  .pain-visual img {
    aspect-ratio: 16 / 10;
  }
  .solution-row {
    flex-direction: column !important;
    gap: 24px;
    padding: 40px 0;
  }
  .solution-img,
  .solution-text {
    flex: 0 0 100%;
    max-width: 100%;
  }
  .result-row {
    flex-direction: column;
    gap: 8px;
    padding: 20px 0;
  }
  .result-number {
    font-size: 48px;
    min-width: auto;
  }
  .testimonial-grid {
    grid-template-columns: 1fr;
  }
  .testimonial-card.featured {
    grid-column: span 1;
    padding: 28px;
  }
  .news-grid {
    grid-template-columns: 1fr;
  }
  .news-empty {
    grid-column: span 1;
  }
  .cta-section {
    padding: 80px 20px;
  }
  .cta-title {
    font-size: 26px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}
@media (max-width: 520px) {
  .hero h1 {
    font-size: 28px;
  }
  .pain-num {
    font-size: 36px;
  }
  .result-number {
    font-size: 40px;
  }
  .testimonial-card {
    padding: 24px;
  }
  .news-card {
    padding: 22px;
  }
}

/* ========== 动画 ========== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}
.fade-in {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.5s cubic-bezier(0.2, 0.6, 0.2, 1), transform 0.5s cubic-bezier(0.2, 0.6, 0.2, 1);
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}

/* roulang page: category1 */
:root {
  --bg-primary: #0A0E14;
  --bg-secondary: #10161F;
  --bg-card: #131A24;
  --text-primary: #E8EAED;
  --text-secondary: #A6B0BC;
  --accent: #C9A87C;
  --accent-hover: #DFC396;
  --border: rgba(255,255,255,0.08);
  --success: #7FB59A;
  --warning: #C47A72;
  --radius-card: 16px;
  --radius-input: 10px;
  --radius-btn: 999px;
  --shadow-card: 0 12px 40px rgba(0,0,0,0.35);
  --shadow-hover: 0 20px 60px rgba(0,0,0,0.45);
  --container: 1200px;
  --transition: 0.3s cubic-bezier(0.2, 0.6, 0.2, 1);
  --font-serif: "Noto Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --font-sans: "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe 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(--bg-primary);
  color: var(--text-primary);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.25s ease;
}

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

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

input, textarea {
  font-family: inherit;
}

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

/* ===== 导航 ===== */
.site-header {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1000;
  width: min(1200px, calc(100% - 32px));
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  background: rgba(10, 14, 20, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  padding: 10px 14px 10px 24px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.brand {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.02em;
  white-space: nowrap;
  transition: color 0.25s;
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-link {
  position: relative;
  font-size: 14px;
  color: var(--text-secondary);
  padding: 6px 0;
  letter-spacing: 0.02em;
  transition: color 0.25s;
}

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

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

.nav-link.active::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -2px;
  transform: translateX(-50%);
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent);
}

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

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  transition: border-color 0.25s;
}

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

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-btn);
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: all 0.3s cubic-bezier(0.2, 0.6, 0.2, 1);
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 2px solid var(--accent-hover);
  outline-offset: 3px;
}

.btn-primary {
  background: var(--accent);
  color: var(--bg-primary);
  border: 1px solid transparent;
}

.btn-primary:hover {
  background: var(--accent-hover);
  color: var(--bg-primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(201, 168, 124, 0.25);
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

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

/* ===== 面包屑 ===== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
}

.breadcrumb a {
  color: var(--text-secondary);
  transition: color 0.25s;
}

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

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

.breadcrumb .current {
  color: var(--accent);
}

/* ===== 分类页 Hero ===== */
.category-hero {
  position: relative;
  padding: 170px 0 64px;
  background: var(--bg-primary);
  overflow: hidden;
}

.category-hero-bg {
  position: absolute;
  inset: 0;
  background: url("/assets/images/backpic/back-1.webp") center 30% / cover no-repeat;
  opacity: 0.5;
}

.category-hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 14, 20, 0.82) 0%, rgba(10, 14, 20, 0.72) 40%, rgba(10, 14, 20, 0.78) 70%, #0A0E14 100%);
}

.category-hero .container {
  position: relative;
  z-index: 2;
  max-width: 860px;
  text-align: center;
}

.category-hero .breadcrumb {
  justify-content: center;
  margin-bottom: 26px;
}

.category-hero h1 {
  font-family: var(--font-serif);
  font-size: 48px;
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: 0.01em;
  margin-bottom: 18px;
}

.category-lead {
  font-size: 17px;
  line-height: 1.8;
  color: var(--text-secondary);
  max-width: 680px;
  margin: 0 auto;
}

/* ===== 页内锚点 ===== */
.page-anchors {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 32px;
  margin-top: 38px;
}

.page-anchors a {
  font-size: 14px;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
  padding-bottom: 4px;
  border-bottom: 1px solid transparent;
  transition: color 0.25s, border-color 0.25s;
}

.page-anchors a:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ===== 板块标题 ===== */
.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}

.section-eyebrow::before {
  content: "";
  width: 20px;
  height: 20px;
  border-left: 4px solid var(--accent);
  border-radius: 2px;
}

.section-title {
  font-family: var(--font-serif);
  font-size: 34px;
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: 0.01em;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.section-sub {
  font-size: 15px;
  color: var(--text-secondary);
  max-width: 520px;
  line-height: 1.7;
}

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

.section-head.center {
  text-align: center;
}

.section-head.center .section-sub {
  margin: 0 auto;
}

.section-head.center .section-eyebrow {
  justify-content: center;
}

/* ===== 内容段落区 ===== */
.category-intro {
  padding: 96px 0;
  background: var(--bg-primary);
}

.intro-split {
  display: grid;
  grid-template-columns: 6fr 5fr;
  gap: 72px;
  align-items: center;
}

.intro-text p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.intro-text p strong {
  color: var(--text-primary);
  font-weight: 600;
}

.intro-text .para-lead {
  font-size: 16px;
  color: var(--text-primary);
}

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

.intro-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 4 / 3;
}

/* ===== 核心模块列表 ===== */
.category-modules {
  padding: 96px 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.module-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.module-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 28px 30px;
  display: flex;
  gap: 20px;
  transition: transform 0.3s cubic-bezier(0.2, 0.6, 0.2, 1), box-shadow 0.3s cubic-bezier(0.2, 0.6, 0.2, 1), border-color 0.3s;
}

.module-item:hover {
  transform: translateY(-4px);
  border-color: rgba(201, 168, 124, 0.4);
  box-shadow: var(--shadow-hover);
}

.module-num {
  font-family: var(--font-serif);
  font-size: 42px;
  font-weight: 500;
  line-height: 1;
  color: var(--accent);
  min-width: 52px;
  opacity: 0.9;
}

.module-content h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
  letter-spacing: 0.01em;
}

.module-content p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-secondary);
}

/* ===== 流程区 ===== */
.category-process {
  padding: 96px 0;
  background: var(--bg-primary);
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  counter-reset: step;
}

.process-step {
  position: relative;
  padding: 32px 24px 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  transition: transform 0.3s cubic-bezier(0.2, 0.6, 0.2, 1), border-color 0.3s, box-shadow 0.3s;
}

.process-step:hover {
  transform: translateY(-4px);
  border-color: rgba(201, 168, 124, 0.4);
  box-shadow: var(--shadow-hover);
}

.step-num {
  font-family: var(--font-serif);
  font-size: 36px;
  font-weight: 500;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 18px;
  display: block;
}

.process-step h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.process-step p {
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-secondary);
}

/* ===== FAQ ===== */
.category-faq {
  padding: 96px 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
}

.faq-list {
  max-width: 860px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--border);
  padding: 22px 0;
}

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

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 500;
  color: var(--text-primary);
  letter-spacing: 0.01em;
  transition: color 0.25s;
  padding: 4px 0;
}

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

.faq-icon {
  position: relative;
  flex-shrink: 0;
  width: 20px;
  height: 20px;
}

.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: background 0.25s, transform 0.35s cubic-bezier(0.2, 0.6, 0.2, 1);
}

.faq-icon::before {
  top: 9px;
  left: 2px;
  width: 16px;
  height: 2px;
}

.faq-icon::after {
  top: 2px;
  left: 9px;
  width: 2px;
  height: 16px;
}

.faq-item.open .faq-icon::after {
  transform: rotate(90deg);
  opacity: 0;
}

.faq-item.open .faq-icon::before {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-secondary);
  transition: max-height 0.35s ease;
}

.faq-answer-inner {
  padding: 12px 32px 4px 0;
}

/* ===== CTA ===== */
.cta-section {
  position: relative;
  padding: 96px 0;
  background: var(--bg-primary);
  overflow: hidden;
}

.cta-bg {
  position: absolute;
  inset: 0;
  background: url("/assets/images/backpic/back-2.png") center / cover no-repeat;
  opacity: 0.4;
}

.cta-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, #0A0E14 0%, rgba(10, 14, 20, 0.78) 50%, #0A0E14 100%);
}

.cta-box {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 620px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 52px 48px;
  box-shadow: var(--shadow-card);
}

.cta-box h2 {
  font-family: var(--font-serif);
  font-size: 30px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 14px;
  letter-spacing: 0.01em;
}

.cta-box p {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 28px;
  line-height: 1.7;
}

.cta-box .btn {
  min-width: 160px;
}

.cta-contact {
  margin-top: 18px;
  font-size: 13px;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--border);
  padding: 64px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
}

.footer-brand {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
  letter-spacing: 0.02em;
}

.footer-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.75;
  max-width: 320px;
}

.footer-col h4 {
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.06em;
  margin-bottom: 18px;
}

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

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

.footer-col ul a {
  font-size: 14px;
  color: var(--text-secondary);
  transition: color 0.25s;
}

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

.footer-contact p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-secondary);
  gap: 12px;
  flex-wrap: wrap;
}

.footer-domain {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
  letter-spacing: 0.04em;
}

/* ===== Reveal 动画 ===== */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.5s cubic-bezier(0.2, 0.6, 0.2, 1), transform 0.5s cubic-bezier(0.2, 0.6, 0.2, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .btn, .module-item, .process-step, .nav-link, .faq-icon::before, .faq-icon::after {
    transition: none;
  }
}

/* ===== 响应式 ===== */
@media (max-width: 1023px) {
  .category-hero h1 {
    font-size: 38px;
  }

  .intro-split {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .intro-image img {
    max-height: 420px;
  }

  .process-steps {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
}

@media (max-width: 767px) {
  .container {
    padding: 0 20px;
  }

  .site-header {
    top: 12px;
    width: calc(100% - 24px);
  }

  .site-nav {
    padding: 8px 12px 8px 18px;
    border-radius: 999px;
  }

  .brand {
    font-size: 15px;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    background: rgba(10, 14, 20, 0.96);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 20px;
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
  }

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

  .nav-links .nav-cta {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .category-hero {
    padding: 150px 0 48px;
  }

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

  .category-lead {
    font-size: 15px;
    line-height: 1.7;
  }

  .page-anchors {
    gap: 20px;
    margin-top: 28px;
  }

  .page-anchors a {
    font-size: 13px;
  }

  .section-title {
    font-size: 26px;
  }

  .category-intro,
  .category-modules,
  .category-process,
  .category-faq,
  .cta-section {
    padding: 64px 0;
  }

  .module-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .module-item {
    padding: 24px;
    gap: 16px;
  }

  .module-num {
    font-size: 34px;
    min-width: 42px;
  }

  .process-steps {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .process-step {
    padding: 24px 22px;
  }

  .faq-question {
    font-size: 15px;
  }

  .cta-box {
    padding: 36px 24px;
  }

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

  .cta-box .btn {
    width: 100%;
    max-width: 360px;
  }

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

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

@media (max-width: 520px) {
  .category-hero h1 {
    font-size: 28px;
  }

  .category-lead {
    font-size: 14px;
  }

  .section-eyebrow {
    font-size: 12px;
  }

  .intro-text p {
    font-size: 14px;
  }

  .module-content h3 {
    font-size: 16px;
  }

  .module-content p {
    font-size: 13px;
  }

  .step-num {
    font-size: 32px;
  }

  .process-step h3 {
    font-size: 15px;
  }

  .process-step p {
    font-size: 12px;
  }

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

  .cta-box p {
    font-size: 14px;
  }
}

/* roulang page: article */
:root {
  --bg: #0A0E14;
  --bg-alt: #10161F;
  --card: #131A24;
  --border: rgba(255,255,255,0.08);
  --text: #E8EAED;
  --text-muted: #A6B0BC;
  --gold: #C9A87C;
  --gold-hover: #DFC396;
  --success: #7FB59A;
  --warning: #C47A72;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 12px 40px rgba(0,0,0,0.35);
  --shadow-hover: 0 20px 60px rgba(0,0,0,0.45);
  --font-serif: "Noto Serif SC","Source Han Serif SC","Songti SC",SimSun,serif;
  --font-sans: "PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --transition: all 0.3s cubic-bezier(0.2,0.6,0.2,1);
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}
ul, ol {
  list-style: none;
}
button, input, textarea {
  font: inherit;
  border: none;
  outline: none;
  background: none;
  color: inherit;
}
::selection {
  background: rgba(201,168,124,0.3);
}
:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
  border-radius: 4px;
}
.container {
  width: min(1200px, 92%);
  margin-inline: auto;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 12px 26px;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.2;
  white-space: nowrap;
  cursor: pointer;
  transition: var(--transition);
}
.btn-primary {
  background: var(--gold);
  color: #0A0E14;
}
.btn-primary:hover {
  background: var(--gold-hover);
  color: #0A0E14;
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}
.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid rgba(255,255,255,0.3);
}
.btn-outline:hover {
  border-color: var(--gold);
  color: var(--gold);
  transform: translateY(-2px);
}
.btn-lg {
  padding: 16px 36px;
  font-size: 15px;
}
.site-header {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1000;
  width: min(1200px, 92%);
}
.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px 10px 20px;
  background: rgba(10,14,20,0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border);
  border-radius: 999px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
}
.brand {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--text);
}
.brand:hover {
  color: var(--gold);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-link {
  font-size: 14px;
  color: var(--text-muted);
  position: relative;
  line-height: 1.4;
}
.nav-link:hover {
  color: var(--text);
}
.nav-link.active {
  color: var(--gold);
}
.nav-link.active::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -8px;
  transform: translateX(-50%);
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--gold);
}
.nav-cta {
  padding: 9px 20px;
  font-size: 13px;
}
.site-nav > .nav-cta {
  display: inline-flex;
}
.nav-links .nav-cta {
  display: none;
}
.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  color: var(--text);
}
.nav-toggle:hover {
  background: rgba(255,255,255,0.06);
  color: var(--gold);
}
.article-page {
  padding-top: 160px;
  padding-bottom: 80px;
  background: var(--bg);
}
.article-head {
  max-width: 860px;
  margin: 0 auto 56px;
  text-align: center;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border);
}
.breadcrumb {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 24px;
}
.breadcrumb a {
  color: var(--text-muted);
}
.breadcrumb a:hover {
  color: var(--gold);
}
.breadcrumb-sep {
  opacity: 0.5;
}
.breadcrumb-current {
  color: var(--text);
}
.article-category {
  display: inline-block;
  font-size: 13px;
  color: var(--gold);
  border: 1px solid rgba(201,168,124,0.35);
  border-radius: 999px;
  padding: 6px 16px;
  margin-bottom: 20px;
  letter-spacing: 0.02em;
}
.article-head h1 {
  font-family: var(--font-serif);
  font-size: 44px;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin: 0 0 24px;
}
.article-meta {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px 32px;
  font-size: 13px;
  color: var(--text-muted);
}
.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.meta-item::before {
  content: "";
  display: inline-block;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--gold);
  opacity: 0.7;
}
.meta-item:first-child::before {
  background: transparent;
}
.article-body {
  max-width: 760px;
  margin: 0 auto;
  font-size: 16px;
  line-height: 1.85;
  color: var(--text);
  word-break: break-word;
}
.article-body p {
  margin-bottom: 24px;
}
.article-body h2 {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 600;
  line-height: 1.4;
  margin: 48px 0 20px;
  padding-left: 14px;
  border-left: 4px solid var(--gold);
}
.article-body h3 {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 600;
  margin: 36px 0 16px;
}
.article-body h4 {
  font-size: 18px;
  font-weight: 600;
  margin: 28px 0 12px;
}
.article-body ul,
.article-body ol {
  margin: 0 0 24px;
  padding-left: 24px;
}
.article-body ul {
  list-style: disc;
}
.article-body ol {
  list-style: decimal;
}
.article-body li {
  margin-bottom: 8px;
}
.article-body li::marker {
  color: var(--gold);
}
.article-body blockquote {
  margin: 32px 0;
  padding: 20px 24px;
  background: var(--bg-alt);
  border-left: 4px solid var(--gold);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-muted);
  font-style: italic;
}
.article-body blockquote p {
  margin-bottom: 0;
}
.article-body a {
  color: var(--gold);
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-color: rgba(201,168,124,0.4);
}
.article-body a:hover {
  color: var(--gold-hover);
  text-decoration-color: var(--gold);
}
.article-body img {
  border-radius: var(--radius);
  margin: 32px auto;
  box-shadow: var(--shadow);
}
.article-body figure {
  margin: 32px 0;
}
.article-body figcaption {
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 12px;
}
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 32px 0;
  font-size: 15px;
}
.article-body th,
.article-body td {
  border: 1px solid var(--border);
  padding: 12px 16px;
  text-align: left;
}
.article-body th {
  background: var(--bg-alt);
  color: var(--gold);
  font-weight: 500;
}
.article-body td {
  color: var(--text);
  background: var(--card);
}
.article-body pre {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 20px 24px;
  overflow-x: auto;
  margin: 32px 0;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text);
}
.article-body code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.9em;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2px 6px;
  color: var(--gold);
}
.article-body pre code {
  background: none;
  border: none;
  padding: 0;
  color: inherit;
}
.article-body hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 48px 0;
}
.article-body strong {
  color: var(--text);
  font-weight: 600;
}
.article-pager {
  max-width: 760px;
  margin: 64px auto 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.pager-link {
  display: block;
  padding: 24px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: var(--transition);
}
.pager-link:hover {
  border-color: rgba(201,168,124,0.4);
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.pager-link:hover .pager-title {
  color: var(--gold);
}
.pager-label {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 8px;
  letter-spacing: 0.04em;
}
.pager-title {
  display: block;
  font-size: 15px;
  line-height: 1.55;
  color: var(--text);
}
.pager-next {
  text-align: right;
}
.related-section {
  max-width: 1000px;
  margin: 80px auto 0;
}
.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 32px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}
.section-head h2 {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 600;
  color: var(--text);
}
.link-more {
  font-size: 14px;
  color: var(--gold);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}
.link-more:hover {
  color: var(--gold-hover);
  gap: 10px;
}
.related-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.related-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}
.related-card:hover {
  transform: translateY(-4px);
  border-color: rgba(201,168,124,0.4);
  box-shadow: var(--shadow-hover);
}
.related-card > a {
  display: block;
  color: inherit;
}
.related-card > a:hover {
  color: inherit;
}
.related-thumb {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--bg-alt);
}
.related-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s cubic-bezier(0.2,0.6,0.2,1);
}
.related-card:hover .related-thumb img {
  transform: scale(1.05);
}
.related-info {
  padding: 24px;
}
.related-tag {
  display: inline-block;
  font-size: 12px;
  color: var(--gold);
  border: 1px solid rgba(201,168,124,0.3);
  border-radius: 999px;
  padding: 4px 12px;
  margin-bottom: 12px;
  letter-spacing: 0.02em;
}
.related-info h3 {
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 10px;
  color: var(--text);
}
.related-info p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-date {
  font-size: 13px;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.related-date::before {
  content: "";
  display: inline-block;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--gold);
  opacity: 0.6;
}
.article-not-found {
  min-height: 52vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 0;
}
.article-not-found h1 {
  font-family: var(--font-serif);
  font-size: 36px;
  font-weight: 600;
  margin-bottom: 16px;
}
.article-not-found p {
  font-size: 16px;
  color: var(--text-muted);
  margin-bottom: 32px;
}
.cta-section {
  position: relative;
  margin-top: 100px;
  padding: 100px 0;
  text-align: center;
  background-image: url("/assets/images/backpic/back-1.webp");
  background-size: cover;
  background-position: center;
  background-color: var(--bg-alt);
}
.cta-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10,14,20,0.72), rgba(10,14,20,0.88));
}
.cta-section .container {
  position: relative;
  z-index: 1;
}
.cta-section h2 {
  font-family: var(--font-serif);
  font-size: 32px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}
.cta-section p {
  color: var(--text-muted);
  font-size: 16px;
  line-height: 1.7;
  max-width: 560px;
  margin: 0 auto 32px;
}
.cta-note {
  display: block;
  margin-top: 16px;
  font-size: 13px;
  color: rgba(255,255,255,0.55);
}
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg);
  padding: 64px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
}
.footer-brand {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 12px;
}
.footer-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 300px;
}
.footer-col h4 {
  font-size: 13px;
  color: var(--gold);
  font-weight: 500;
  margin-bottom: 16px;
  letter-spacing: 0.04em;
}
.footer-col ul li {
  margin-bottom: 10px;
}
.footer-col ul li a {
  font-size: 14px;
  color: var(--text-muted);
  transition: var(--transition);
}
.footer-col ul li a:hover {
  color: var(--gold);
  padding-left: 4px;
}
.footer-contact p {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 6px;
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  border-top: 1px solid var(--border);
  padding-top: 24px;
  font-size: 13px;
  color: var(--text-muted);
}
.footer-domain {
  color: var(--text-muted);
  letter-spacing: 0.04em;
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html {
    scroll-behavior: auto;
  }
}
@media (max-width: 1023px) {
  .container {
    width: 92%;
  }
  .article-head h1 {
    font-size: 36px;
  }
  .cta-section h2 {
    font-size: 28px;
  }
  .cta-section {
    padding: 80px 0;
  }
  .related-grid {
    gap: 16px;
  }
  .footer-grid {
    gap: 32px;
  }
}
@media (max-width: 767px) {
  .site-header {
    top: 12px;
    left: 0;
    transform: none;
    width: 100%;
    padding: 0 12px;
  }
  .site-nav {
    padding: 10px 14px;
    border-radius: 24px;
  }
  .nav-toggle {
    display: flex;
  }
  .nav-links {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: rgba(10,14,20,0.95);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 16px;
    gap: 4px;
    display: none;
    box-shadow: var(--shadow);
  }
  .nav-links.open {
    display: flex;
  }
  .nav-link {
    padding: 10px 12px;
    font-size: 15px;
  }
  .nav-link.active::after {
    left: 16px;
    transform: none;
  }
  .site-nav > .nav-cta {
    display: none;
  }
  .nav-links .nav-cta {
    display: flex !important;
    margin-top: 8px;
  }
  .article-page {
    padding-top: 120px;
    padding-bottom: 48px;
  }
  .article-head {
    margin-bottom: 40px;
    padding-bottom: 32px;
  }
  .article-head h1 {
    font-size: 30px;
  }
  .article-meta {
    gap: 8px 20px;
  }
  .article-body {
    font-size: 15px;
    line-height: 1.8;
  }
  .article-body h2 {
    font-size: 24px;
    margin: 36px 0 16px;
  }
  .article-body h3 {
    font-size: 20px;
  }
  .article-body blockquote {
    padding: 16px 20px;
  }
  .article-body table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }
  .article-pager {
    grid-template-columns: 1fr;
    margin-top: 48px;
    gap: 16px;
  }
  .pager-next {
    text-align: left;
  }
  .related-section {
    margin-top: 56px;
  }
  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  .section-head h2 {
    font-size: 24px;
  }
  .related-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .related-info {
    padding: 20px;
  }
  .related-info h3 {
    font-size: 18px;
  }
  .cta-section {
    margin-top: 64px;
    padding: 72px 24px;
  }
  .cta-section h2 {
    font-size: 24px;
  }
  .cta-section p {
    font-size: 15px;
  }
  .cta-section .btn {
    width: 100%;
    max-width: 360px;
    margin-inline: auto;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
    padding-bottom: 32px;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
  .article-not-found {
    min-height: 40vh;
  }
  .article-not-found h1 {
    font-size: 28px;
  }
}