/* roulang page: index */
:root {
  --primary: #0d1f2d;
  --primary-light: #1b3a4b;
  --accent: #e8a33d;
  --accent-hover: #d48f2a;
  --accent-soft: #fdf0df;
  --bg: #f4f6f9;
  --bg-alt: #ffffff;
  --card-bg: #ffffff;
  --text: #1c2633;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 8px 30px rgba(13, 31, 45, 0.06);
  --shadow-lg: 0 16px 48px rgba(13, 31, 45, 0.10);
  --transition: all 0.3s ease;
  --container: 1200px;
  --header-height: 76px;
}
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  font-size: 16px;
  overflow-x: hidden;
}
a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}
img {
  display: block;
  max-width: 100%;
  height: auto;
}
button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}
input,
textarea {
  font-family: inherit;
  font-size: 1rem;
}
ul,
ol {
  list-style: none;
}
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
.section {
  padding: 90px 0;
}
.section-alt {
  background: var(--bg-alt);
}
.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 56px;
}
.section-tag {
  display: inline-block;
  background: var(--accent-soft);
  color: var(--accent-hover);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  padding: 6px 18px 8px;
  border-radius: 40px;
  margin-bottom: 16px;
}
.section-head h2 {
  font-size: 36px;
  font-weight: 800;
  line-height: 1.25;
  color: var(--primary);
  letter-spacing: -0.5px;
  margin-bottom: 12px;
}
.section-head p {
  color: var(--text-muted);
  font-size: 16px;
  line-height: 1.7;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 60px;
  font-weight: 600;
  font-size: 15px;
  line-height: 1.2;
  transition: var(--transition);
  white-space: nowrap;
  border: 1px solid transparent;
}
.btn-primary {
  background: var(--accent);
  color: #1a1306;
  box-shadow: 0 6px 20px rgba(232, 163, 61, 0.35);
}
.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(232, 163, 61, 0.45);
}
.btn-ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.5);
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: #fff;
}
.btn-dark {
  background: var(--primary);
  color: #fff;
}
.btn-dark:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}
.btn-block {
  width: 100%;
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
  height: var(--header-height);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
}
.logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: var(--primary);
  color: var(--accent);
  border-radius: 10px;
  font-size: 16px;
}
.logo span {
  color: var(--accent);
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  border-radius: 40px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-muted);
  transition: var(--transition);
}
.nav-link:hover {
  color: var(--primary);
  background: #f1f4f8;
}
.nav-link.active {
  color: var(--primary);
  background: var(--accent-soft);
}
.nav-link .nav-arrow {
  font-size: 12px;
  color: var(--accent);
  display: none;
}
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg-alt);
  color: var(--primary);
  font-size: 18px;
  align-items: center;
  justify-content: center;
}
.nav-sidebar {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 300px;
  max-width: 80vw;
  background: var(--bg-alt);
  box-shadow: -20px 0 60px rgba(0, 0, 0, 0.15);
  z-index: 120;
  padding: 80px 32px 32px;
  transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}
.nav-sidebar.open {
  transform: translateX(0);
}
.nav-sidebar .close-nav {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #f1f4f8;
  color: var(--primary);
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.nav-sidebar .side-nav-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.nav-sidebar .side-nav-list a {
  padding: 14px 18px;
  border-radius: 14px;
  font-weight: 600;
  color: var(--text);
  background: #f8fafc;
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav-sidebar .side-nav-list a.active {
  background: var(--accent-soft);
  color: var(--primary);
}
.sidebar-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 110;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}
.sidebar-overlay.open {
  opacity: 1;
  visibility: visible;
}

/* Hero */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  margin-top: var(--header-height);
  background-image: linear-gradient(115deg, rgba(13, 31, 45, 0.92) 20%, rgba(13, 31, 45, 0.55) 60%, rgba(13, 31, 45, 0.35)), url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: #fff;
  padding: 80px 0;
}
.hero-inner {
  max-width: 700px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(8px);
  padding: 8px 20px;
  border-radius: 40px;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 28px;
  color: #f0e5d0;
}
.hero-badge i {
  color: var(--accent);
}
.hero h1 {
  font-size: 56px;
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 20px;
  color: #fff;
}
.hero-desc {
  font-size: 18px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 36px;
  max-width: 560px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 52px;
}
.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
}
.hero-stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.hero-stat strong {
  font-size: 30px;
  font-weight: 800;
  color: var(--accent);
}
.hero-stat span {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
}

/* Features */
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}
.feature-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 32px 28px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), transparent);
  opacity: 0;
  transition: var(--transition);
}
.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.feature-card:hover::before {
  opacity: 1;
}
.feature-icon {
  width: 58px;
  height: 58px;
  border-radius: 16px;
  background: var(--accent-soft);
  color: var(--accent-hover);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 24px;
}
.feature-card h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 10px;
}
.feature-card p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* Showcase */
.showcase-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  padding: 40px 0;
}
.showcase-row + .showcase-row {
  margin-top: 40px;
  padding-top: 60px;
  border-top: 1px solid var(--border);
}
.showcase-image {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.showcase-image img {
  width: 100%;
  height: 340px;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.showcase-image:hover img {
  transform: scale(1.03);
}
.showcase-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(13, 31, 45, 0.2), transparent 60%);
}
.showcase-content h2 {
  font-size: 30px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.3;
  margin-bottom: 16px;
}
.showcase-content > p {
  color: var(--text-muted);
  font-size: 16px;
  line-height: 1.75;
  margin-bottom: 24px;
}
.showcase-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.showcase-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 18px;
  background: #f8fafc;
  border-radius: var(--radius-sm);
  border: 1px solid #f0f2f5;
}
.showcase-list li i {
  color: var(--accent);
  font-size: 16px;
  margin-top: 3px;
}
.showcase-list li span {
  font-size: 15px;
  color: var(--text);
  line-height: 1.6;
  font-weight: 500;
}

/* Category Entry */
.category-entry {
  position: relative;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  overflow: hidden;
}
.category-entry::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(13, 31, 45, 0.95) 30%, rgba(13, 31, 45, 0.7) 70%, rgba(13, 31, 45, 0.45));
}
.category-entry .container {
  position: relative;
}
.category-wrap {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: center;
}
.category-info h2 {
  color: #fff;
  font-size: 34px;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 14px;
}
.category-info > p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 16px;
  line-height: 1.75;
  margin-bottom: 28px;
}
.category-points {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
}
.category-points li {
  display: flex;
  align-items: center;
  gap: 12px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 15px;
}
.category-points li i {
  color: var(--accent);
  font-size: 14px;
}
.category-entry-card {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(12px);
  border-radius: 24px;
  padding: 40px 36px;
  text-align: center;
}
.category-entry-card img {
  border-radius: 16px;
  height: 180px;
  object-fit: cover;
  margin-bottom: 24px;
  width: 100%;
}
.category-entry-card h3 {
  color: #fff;
  font-size: 22px;
  margin-bottom: 10px;
}
.category-entry-card p {
  color: rgba(255, 255, 255, 0.75);
  font-size: 14px;
  margin-bottom: 22px;
}

/* News */
.news-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.news-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.news-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.news-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.news-cat {
  display: inline-block;
  background: var(--accent-soft);
  color: var(--accent-hover);
  font-size: 13px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 30px;
}
.news-meta time {
  font-size: 13px;
  color: var(--text-muted);
}
.news-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.4;
}
.news-card:hover .news-title {
  color: var(--accent-hover);
}
.news-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  flex: 1;
}
.news-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 6px;
}
.news-link i {
  font-size: 12px;
  transition: transform 0.3s;
}
.news-card:hover .news-link i {
  transform: translateX(4px);
}
.empty-state {
  grid-column: 1 / -1;
  background: var(--card-bg);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: 60px 24px;
  text-align: center;
  color: var(--text-muted);
}
.empty-state i {
  font-size: 42px;
  color: #cbd5e1;
  margin-bottom: 16px;
}
.empty-state p {
  font-size: 15px;
}

/* Process */
.process-section {
  background: var(--bg-alt);
}
.process-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  position: relative;
}
.process-steps::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 12%;
  right: 12%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), #d4e2ee, var(--accent));
  opacity: 0.5;
}
.process-step {
  position: relative;
  text-align: center;
  padding: 0 16px;
}
.step-num {
  position: relative;
  z-index: 1;
  width: 82px;
  height: 82px;
  margin: 0 auto 24px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  font-weight: 800;
  box-shadow: 0 0 0 6px #fff, 0 12px 30px rgba(13, 31, 45, 0.18);
}
.process-step h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 10px;
}
.process-step p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 260px;
  margin: 0 auto;
}
.process-note {
  text-align: center;
  margin-top: 48px;
  background: var(--accent-soft);
  color: var(--accent-hover);
  display: inline-block;
  padding: 10px 28px;
  border-radius: 40px;
  font-size: 14px;
  font-weight: 600;
}
.process-note-wrap {
  text-align: center;
}

/* FAQ */
.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.faq-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover {
  border-color: #d0d9e4;
}
.faq-item.open {
  border-color: var(--accent);
  box-shadow: 0 4px 20px rgba(232, 163, 61, 0.12);
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 28px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  text-align: left;
  transition: var(--transition);
}
.faq-question:hover {
  color: var(--primary);
}
.faq-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent-hover);
  font-size: 12px;
  flex-shrink: 0;
  transition: transform 0.3s;
}
.faq-item.open .faq-icon {
  transform: rotate(45deg);
  background: var(--accent);
  color: #fff;
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}
.faq-answer-inner {
  padding: 0 28px 24px;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.75;
}

/* CTA */
.cta-section {
  position: relative;
  background-image: linear-gradient(105deg, rgba(13, 31, 45, 0.95) 25%, rgba(13, 31, 45, 0.7)), url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  padding: 90px 0;
  color: #fff;
  text-align: center;
}
.cta-inner h2 {
  font-size: 38px;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 16px;
  color: #fff;
}
.cta-inner p {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.8);
  max-width: 520px;
  margin: 0 auto 36px;
  line-height: 1.7;
}
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
}
.cta-tip {
  margin-top: 28px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
}

/* Footer */
.site-footer {
  background: var(--primary);
  color: rgba(255, 255, 255, 0.75);
  padding: 60px 0 30px;
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  margin-bottom: 28px;
}
.footer-brand .logo {
  color: #fff;
  margin-bottom: 14px;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  max-width: 320px;
  color: rgba(255, 255, 255, 0.6);
}
.footer-nav h4 {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}
.footer-nav a {
  display: block;
  padding: 6px 0;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  transition: var(--transition);
}
.footer-nav a:hover {
  color: var(--accent);
}
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
}

/* Bottom Tabbar */
.bottom-tabbar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  padding: 6px 8px calc(6px + env(safe-area-inset-bottom));
  justify-content: space-around;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.06);
}
.tab-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 8px 20px;
  border-radius: 14px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  transition: var(--transition);
}
.tab-item i {
  font-size: 20px;
}
.tab-item:hover {
  color: var(--primary);
}
.tab-item.active {
  color: var(--accent-hover);
}
.tab-item.active i {
  transform: translateY(-2px);
}

/* Empty state for CMS */
.cms-empty {
  background: var(--card-bg);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: 60px 24px;
  text-align: center;
  color: var(--text-muted);
}
.cms-empty i {
  font-size: 40px;
  color: #cbd5e1;
  margin-bottom: 14px;
  display: block;
}

/* Scroll to top */
.scroll-top {
  position: fixed;
  bottom: 90px;
  right: 24px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--accent);
  color: #1a1306;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: var(--transition);
  z-index: 90;
}
.scroll-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.scroll-top:hover {
  background: var(--accent-hover);
  color: #fff;
}

/* Responsive */
@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  .showcase-row {
    gap: 40px;
  }
  .showcase-image img {
    height: 300px;
  }
  .hero h1 {
    font-size: 44px;
  }
}

@media (max-width: 767px) {
  .section {
    padding: 64px 0;
  }
  .section-head h2 {
    font-size: 28px;
  }
  .section-head p {
    font-size: 15px;
  }
  .site-header {
    height: 64px;
  }
  .header-inner {
    height: 64px;
  }
  .main-nav {
    display: none;
  }
  .nav-toggle {
    display: flex;
  }
  .hero {
    min-height: 80vh;
    padding: 60px 0;
    margin-top: 64px;
  }
  .hero h1 {
    font-size: 34px;
  }
  .hero-desc {
    font-size: 16px;
  }
  .hero-stats {
    gap: 24px;
  }
  .hero-stat strong {
    font-size: 24px;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .showcase-row {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .showcase-row.reverse {
    grid-template-columns: 1fr;
  }
  .showcase-row + .showcase-row {
    margin-top: 20px;
    padding-top: 40px;
  }
  .showcase-image img {
    height: 220px;
  }
  .showcase-content h2 {
    font-size: 24px;
  }
  .category-wrap {
    grid-template-columns: 1fr;
  }
  .category-info h2 {
    font-size: 26px;
  }
  .category-entry-card {
    padding: 28px 20px;
  }
  .news-list {
    grid-template-columns: 1fr;
  }
  .process-steps {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .process-steps::before {
    display: none;
  }
  .process-step {
    padding: 0;
  }
  .cta-inner h2 {
    font-size: 28px;
  }
  .cta-actions {
    flex-direction: column;
    align-items: center;
  }
  .cta-actions .btn {
    width: 100%;
    max-width: 280px;
  }
  .footer-inner {
    flex-direction: column;
    gap: 32px;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  .bottom-tabbar {
    display: flex;
  }
  body {
    padding-bottom: 70px;
  }
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .hero-actions .btn {
    justify-content: center;
  }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .category-wrap {
    grid-template-columns: 1fr;
  }
  .category-entry-card {
    max-width: 480px;
  }
  .features-grid {
    gap: 16px;
  }
  .showcase-row {
    gap: 28px;
  }
  .showcase-image img {
    height: 260px;
  }
  .process-steps {
    gap: 16px;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 18px;
  }
  .hero h1 {
    font-size: 30px;
  }
  .hero-badge {
    font-size: 13px;
  }
  .hero-stat strong {
    font-size: 20px;
  }
  .news-card {
    padding: 20px;
  }
  .faq-question {
    padding: 18px 20px;
    font-size: 15px;
  }
  .faq-answer-inner {
    padding: 0 20px 20px;
  }
  .btn {
    padding: 13px 22px;
    font-size: 14px;
  }
  .section-head {
    margin-bottom: 36px;
  }
}

/* roulang page: category1 */
:root {
      --primary: #1a4d8f;
      --primary-dark: #0e3a6f;
      --accent: #d99a2b;
      --accent-dark: #c07f16;
      --bg: #f4f7fb;
      --surface: #ffffff;
      --text: #16283f;
      --text-weak: #5f7288;
      --border: #e3eaf2;
      --radius-sm: 10px;
      --radius-md: 16px;
      --radius-lg: 24px;
      --shadow-sm: 0 2px 10px rgba(22, 40, 63, .05);
      --shadow-md: 0 10px 30px rgba(22, 40, 63, .08);
      --shadow-lg: 0 20px 50px rgba(22, 40, 63, .12);
      --transition: .25s ease;
      --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
    }
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: var(--font);
      background: var(--bg);
      color: var(--text);
      line-height: 1.65;
    }
    a {
      color: inherit;
      text-decoration: none;
    }
    img {
      max-width: 100%;
      display: block;
    }
    ul,
    ol {
      list-style: none;
    }
    button,
    input {
      font-family: inherit;
    }
    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* Header */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, .92);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: .02em;
    }
    .logo-icon {
      width: 38px;
      height: 38px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      color: #fff;
      border-radius: 12px;
      font-size: 16px;
    }
    .logo span {
      color: var(--accent);
    }
    .desktop-nav {
      display: flex;
      gap: 36px;
      align-items: center;
    }
    .desktop-nav a {
      position: relative;
      font-weight: 500;
      color: var(--text);
      padding: 8px 2px;
      transition: color var(--transition);
    }
    .desktop-nav a:hover {
      color: var(--primary);
    }
    .desktop-nav a.active {
      color: var(--primary);
    }
    .desktop-nav a.active::after {
      content: '';
      position: absolute;
      left: 0;
      right: 0;
      bottom: -4px;
      height: 3px;
      border-radius: 3px;
      background: var(--accent);
    }

    /* Page Banner */
    .page-banner {
      position: relative;
      background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
      padding: 120px 0 110px;
      color: #fff;
      text-align: center;
    }
    .page-banner::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(14, 58, 111, .85), rgba(26, 77, 143, .68), rgba(217, 154, 43, .35));
    }
    .page-banner .container {
      position: relative;
      z-index: 2;
    }
    .banner-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(255, 255, 255, .16);
      border: 1px solid rgba(255, 255, 255, .35);
      padding: 6px 16px;
      border-radius: 999px;
      font-size: 13px;
      margin-bottom: 18px;
      letter-spacing: .04em;
    }
    .page-banner h1 {
      font-size: 42px;
      font-weight: 700;
      margin-bottom: 14px;
      letter-spacing: .02em;
    }
    .page-banner p {
      max-width: 620px;
      margin: 0 auto 30px;
      color: rgba(255, 255, 255, .9);
      font-size: 16px;
    }
    .banner-breadcrumb {
      font-size: 14px;
      color: rgba(255, 255, 255, .8);
      display: flex;
      gap: 8px;
      justify-content: center;
    }
    .banner-breadcrumb a {
      color: #fff;
      opacity: .85;
      transition: opacity var(--transition);
    }
    .banner-breadcrumb a:hover {
      opacity: 1;
    }
    .banner-breadcrumb i {
      font-size: 11px;
      opacity: .7;
      align-self: center;
    }

    /* Section */
    .section {
      padding: 80px 0;
    }
    .section-head {
      text-align: center;
      max-width: 720px;
      margin: 0 auto 48px;
    }
    .section-eyebrow {
      display: inline-block;
      color: var(--accent-dark);
      font-weight: 600;
      letter-spacing: .08em;
      font-size: 13px;
      background: rgba(217, 154, 43, .12);
      padding: 4px 14px;
      border-radius: 999px;
      margin-bottom: 10px;
    }
    .section-head h2 {
      font-size: 30px;
      color: var(--text);
      margin-bottom: 12px;
      letter-spacing: .02em;
    }
    .section-head p {
      color: var(--text-weak);
      font-size: 15px;
    }

    /* Entry Cards */
    .entry-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
    }
    .entry-card {
      background: var(--surface);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      border: 1px solid var(--border);
      transition: transform var(--transition), box-shadow var(--transition);
    }
    .entry-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-lg);
    }
    .entry-cover {
      height: 180px;
      overflow: hidden;
      position: relative;
    }
    .entry-cover::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 60%, rgba(22, 40, 63, .18));
    }
    .entry-cover img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .45s ease;
    }
    .entry-card:hover .entry-cover img {
      transform: scale(1.06);
    }
    .entry-body {
      padding: 22px 22px 24px;
    }
    .entry-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(26, 77, 143, .08);
      color: var(--primary);
      font-size: 12px;
      font-weight: 600;
      padding: 4px 12px;
      border-radius: 999px;
      margin-bottom: 12px;
    }
    .entry-body h3 {
      font-size: 19px;
      margin-bottom: 8px;
      color: var(--text);
    }
    .entry-body p {
      font-size: 14px;
      color: var(--text-weak);
    }

    /* Scenario */
    .scenario-section {
      background: linear-gradient(180deg, #f4f7fb 0%, #eef3fa 100%);
    }
    .scenario-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      align-items: center;
      gap: 50px;
    }
    .scenario-image {
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-lg);
    }
    .scenario-image img {
      width: 100%;
      height: 340px;
      object-fit: cover;
    }
    .scenario-content .section-eyebrow {
      margin-bottom: 10px;
    }
    .scenario-content h2 {
      font-size: 30px;
      line-height: 1.3;
      margin-bottom: 14px;
    }
    .scenario-content p {
      color: var(--text-weak);
      font-size: 15px;
      margin-bottom: 22px;
    }
    .scenario-list {
      display: grid;
      gap: 12px;
    }
    .scenario-list li {
      display: flex;
      gap: 10px;
      align-items: flex-start;
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      padding: 14px 16px;
      font-size: 14px;
      box-shadow: var(--shadow-sm);
    }
    .scenario-list li i {
      color: var(--accent);
      margin-top: 4px;
    }

    /* Steps */
    .steps-wrap {
      max-width: 820px;
      margin: 0 auto;
      position: relative;
    }
    .steps-wrap::before {
      content: '';
      position: absolute;
      left: 43px;
      top: 8px;
      bottom: 8px;
      width: 3px;
      border-radius: 3px;
      background: linear-gradient(to bottom, var(--primary), var(--accent));
      opacity: .25;
    }
    .step-item {
      display: flex;
      gap: 22px;
      padding-bottom: 36px;
      position: relative;
    }
    .step-item:last-child {
      padding-bottom: 0;
    }
    .step-node {
      width: 44px;
      height: 44px;
      flex-shrink: 0;
      background: var(--surface);
      border: 2px solid var(--primary);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 15px;
      color: var(--primary);
      box-shadow: 0 0 0 5px rgba(26, 77, 143, .08);
      z-index: 1;
      background: #fff;
    }
    .step-card {
      background: var(--surface);
      border-radius: var(--radius-md);
      padding: 22px 26px;
      box-shadow: var(--shadow-sm);
      border: 1px solid var(--border);
      flex: 1;
      transition: box-shadow var(--transition), transform var(--transition);
    }
    .step-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-2px);
    }
    .step-card h3 {
      font-size: 17px;
      margin-bottom: 4px;
    }
    .step-card p {
      color: var(--text-weak);
      font-size: 14px;
    }
    .progress-bar {
      height: 6px;
      background: var(--border);
      border-radius: 999px;
      overflow: hidden;
      margin-top: 14px;
    }
    .progress-bar span {
      display: block;
      height: 100%;
      background: linear-gradient(90deg, var(--primary), var(--accent));
      border-radius: 999px;
    }

    /* Safety */
    .safety-section {
      background: var(--surface);
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
    }
    .safety-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .safety-card {
      background: var(--bg);
      border-left: 4px solid var(--primary);
      padding: 22px;
      border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
      box-shadow: var(--shadow-sm);
      transition: transform var(--transition), box-shadow var(--transition);
    }
    .safety-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-md);
    }
    .safety-card .icon {
      width: 44px;
      height: 44px;
      border-radius: 12px;
      background: rgba(217, 154, 43, .14);
      color: var(--accent-dark);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      margin-bottom: 14px;
    }
    .safety-card h3 {
      font-size: 15px;
      margin-bottom: 6px;
    }
    .safety-card p {
      font-size: 13px;
      color: var(--text-weak);
    }

    /* FAQ */
    .faq-list {
      max-width: 820px;
      margin: 0 auto;
    }
    .faq-item {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      margin-bottom: 12px;
      overflow: hidden;
      transition: box-shadow var(--transition);
    }
    .faq-item:hover {
      box-shadow: var(--shadow-sm);
    }
    .faq-question {
      padding: 20px 22px;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-weight: 600;
      font-size: 15px;
      color: var(--text);
      transition: background var(--transition);
      user-select: none;
    }
    .faq-question:hover {
      background: rgba(26, 77, 143, .03);
    }
    .faq-question i {
      color: var(--primary);
      transition: transform .3s ease;
    }
    .faq-item.open .faq-question i {
      transform: rotate(180deg);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height .35s ease, padding .3s ease, border-color .3s ease;
      padding: 0 22px;
      color: var(--text-weak);
      font-size: 14px;
      border-top: 1px solid transparent;
      line-height: 1.75;
    }
    .faq-item.open .faq-answer {
      max-height: 300px;
      padding: 16px 22px 18px;
      border-top-color: var(--border);
    }

    /* CTA */
    .cta-wrap {
      max-width: 1100px;
      margin: 0 auto;
      padding: 0 24px;
    }
    .cta-section {
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      border-radius: var(--radius-lg);
      padding: 56px 48px;
      text-align: center;
      color: #fff;
      position: relative;
      overflow: hidden;
      box-shadow: var(--shadow-lg);
    }
    .cta-section::before {
      content: '';
      position: absolute;
      width: 260px;
      height: 260px;
      border-radius: 50%;
      background: rgba(255, 255, 255, .07);
      top: -90px;
      right: -60px;
    }
    .cta-section::after {
      content: '';
      position: absolute;
      width: 180px;
      height: 180px;
      border-radius: 50%;
      background: rgba(217, 154, 43, .18);
      bottom: -80px;
      left: 40px;
    }
    .cta-section h2 {
      font-size: 28px;
      margin-bottom: 10px;
      position: relative;
      z-index: 1;
    }
    .cta-section p {
      color: rgba(255, 255, 255, .85);
      margin-bottom: 28px;
      position: relative;
      z-index: 1;
      font-size: 15px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 12px 30px;
      border-radius: 999px;
      font-weight: 600;
      border: none;
      cursor: pointer;
      transition: all var(--transition);
      font-size: 15px;
    }
    .btn:focus-visible {
      outline: 3px solid var(--accent);
      outline-offset: 2px;
    }
    .btn-primary {
      background: var(--accent);
      color: #16283f;
    }
    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 10px 30px rgba(217, 154, 43, .35);
      background: var(--accent-dark);
    }
    .btn-light {
      background: #fff;
      color: var(--primary);
      margin-left: 10px;
    }
    .btn-light:hover {
      transform: translateY(-2px);
      box-shadow: 0 10px 30px rgba(255, 255, 255, .2);
    }

    /* Footer */
    .site-footer {
      background: #101e30;
      color: rgba(255, 255, 255, .75);
      padding: 56px 0 28px;
      margin-top: 80px;
    }
    .footer-inner {
      display: flex;
      justify-content: space-between;
      gap: 40px;
      padding-bottom: 32px;
      border-bottom: 1px solid rgba(255, 255, 255, .1);
      flex-wrap: wrap;
    }
    .footer-brand {
      max-width: 360px;
    }
    .footer-brand .logo {
      color: #fff;
      margin-bottom: 10px;
    }
    .footer-brand .logo .logo-icon {
      background: linear-gradient(135deg, #1a4d8f, #0e3a6f);
      border: 1px solid rgba(255, 255, 255, .2);
    }
    .footer-brand p {
      font-size: 14px;
      line-height: 1.7;
      margin-top: 8px;
      color: rgba(255, 255, 255, .65);
    }
    .footer-nav {
      display: flex;
      flex-direction: column;
      gap: 10px;
      min-width: 140px;
    }
    .footer-nav h4 {
      color: #fff;
      font-size: 16px;
      margin-bottom: 6px;
      font-weight: 600;
    }
    .footer-nav a {
      font-size: 14px;
      color: rgba(255, 255, 255, .7);
      transition: color var(--transition);
    }
    .footer-nav a:hover {
      color: var(--accent);
    }
    .footer-bottom {
      display: flex;
      justify-content: space-between;
      gap: 12px;
      flex-wrap: wrap;
      padding-top: 24px;
      font-size: 13px;
      color: rgba(255, 255, 255, .5);
    }

    /* Mobile Tab Nav */
    .mobile-tab-nav {
      display: none;
    }

    @media (max-width: 1024px) {
      .entry-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .safety-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .scenario-grid {
        gap: 34px;
      }
    }

    @media (max-width: 768px) {
      body {
        padding-bottom: 72px;
      }
      .desktop-nav {
        display: none;
      }
      .mobile-tab-nav {
        display: block;
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        z-index: 120;
        background: rgba(255, 255, 255, .96);
        backdrop-filter: blur(12px);
        border-top: 1px solid var(--border);
        box-shadow: 0 -4px 20px rgba(22, 40, 63, .06);
      }
      .side-nav-list {
        display: flex;
        padding: 8px 12px;
      }
      .side-nav-list a {
        flex: 1;
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 4px;
        padding: 6px 4px;
        font-size: 12px;
        color: var(--text-weak);
        border-radius: 10px;
        transition: background var(--transition), color var(--transition);
        font-weight: 500;
      }
      .side-nav-list a i {
        font-size: 18px;
      }
      .side-nav-list a.active {
        color: var(--primary);
        background: rgba(26, 77, 143, .08);
      }
      .side-nav-list a.active i {
        transform: translateY(-1px);
      }

      .site-header .header-inner {
        height: 60px;
      }
      .logo {
        font-size: 17px;
      }
      .logo-icon {
        width: 34px;
        height: 34px;
        font-size: 14px;
        border-radius: 10px;
      }

      .page-banner {
        padding: 84px 0 76px;
      }
      .page-banner h1 {
        font-size: 30px;
      }
      .page-banner p {
        font-size: 15px;
      }

      .section {
        padding: 56px 0;
      }
      .section-head {
        margin-bottom: 34px;
      }
      .section-head h2 {
        font-size: 24px;
      }

      .entry-grid {
        grid-template-columns: 1fr;
        gap: 16px;
      }
      .entry-cover {
        height: 200px;
      }

      .scenario-grid {
        grid-template-columns: 1fr;
        gap: 26px;
      }
      .scenario-image img {
        height: 250px;
      }
      .scenario-content h2 {
        font-size: 24px;
      }

      .steps-wrap::before {
        left: 22px;
      }
      .step-node {
        width: 34px;
        height: 34px;
        font-size: 13px;
        box-shadow: 0 0 0 4px rgba(26, 77, 143, .08);
      }
      .step-item {
        gap: 14px;
        padding-bottom: 26px;
      }
      .step-card {
        padding: 18px 18px;
      }
      .step-card h3 {
        font-size: 16px;
      }

      .safety-grid {
        grid-template-columns: 1fr;
        gap: 14px;
      }

      .cta-section {
        padding: 40px 22px;
        border-radius: 18px;
      }
      .cta-section h2 {
        font-size: 22px;
      }
      .btn {
        padding: 12px 22px;
        font-size: 14px;
      }

      .footer-inner {
        flex-direction: column;
        gap: 24px;
      }
      .footer-bottom {
        flex-direction: column;
        text-align: center;
        justify-content: center;
      }
    }

    @media (max-width: 520px) {
      .container {
        padding: 0 16px;
      }
      .page-banner {
        padding: 66px 0 60px;
      }
      .page-banner h1 {
        font-size: 25px;
      }
      .banner-tag {
        font-size: 12px;
      }
      .entry-cover {
        height: 180px;
      }
      .cta-section {
        padding: 32px 18px;
      }
      .btn-light {
        margin-left: 0;
        margin-top: 10px;
      }
    }

/* roulang page: article */
/* ===== 设计变量 ===== */
:root {
  --primary: #0f2b4f;
  --primary-dark: #081c36;
  --primary-light: #1d4e8a;
  --accent: #d8a94a;
  --accent-dark: #b8892f;
  --accent-light: #f0d492;
  --bg: #f4f6fa;
  --bg-deep: #e9edf4;
  --surface: #ffffff;
  --text: #16243a;
  --text-body: #42546a;
  --text-muted: #7d8da0;
  --border: #dfe5ee;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --shadow: 0 4px 20px rgba(12, 34, 65, 0.07);
  --shadow-lg: 0 14px 40px rgba(12, 34, 65, 0.12);
  --shadow-accent: 0 8px 24px rgba(216, 169, 74, 0.35);
  --transition: 0.3s ease;
  --header-h: 76px;
}

/* ===== 基础重置 ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-body);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; transition: color var(--transition), background var(--transition), box-shadow var(--transition), border-color var(--transition); }
img { max-width: 100%; display: block; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { color: var(--text); line-height: 1.3; font-weight: 700; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

/* ===== 容器 ===== */
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding-left: 24px; padding-right: 24px; }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 4px 14px rgba(15, 43, 79, 0.25); }
.btn-primary:hover { background: var(--primary-light); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(15, 43, 79, 0.3); }
.btn-primary:active { transform: translateY(0); }
.btn-outline { border-color: var(--border); color: var(--text); background: var(--surface); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); background: #f0f4fa; transform: translateY(-2px); }
.btn-light { background: #fff; color: var(--primary); box-shadow: 0 4px 16px rgba(0,0,0,0.2); }
.btn-light:hover { background: var(--accent-light); color: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.25); }
.btn-ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,0.5); }
.btn-ghost:hover { background: rgba(255,255,255,0.12); border-color: #fff; transform: translateY(-2px); }
.btn-block { width: 100%; display: flex; }

/* ===== 徽章 / 标签 ===== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: 30px;
  background: var(--primary);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.5px;
}
.badge-outline { background: var(--bg-deep); color: var(--primary); border: 1px solid var(--border); font-weight: 500; }

/* ===== 顶部导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); }
.logo { display: inline-flex; align-items: center; gap: 10px; font-size: 21px; font-weight: 800; color: var(--primary); letter-spacing: 0.5px; }
.logo span { color: var(--accent); font-weight: 700; }
.logo-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 42px; height: 42px;
  background: linear-gradient(140deg, var(--primary), var(--primary-light));
  border-radius: 14px; color: #fff; font-size: 17px;
  box-shadow: 0 4px 12px rgba(15, 43, 79, 0.3);
}
.desktop-nav { display: flex; align-items: center; gap: 2.4rem; }
.nav-link {
  position: relative; padding: 8px 2px; font-size: 15px; font-weight: 500; color: var(--text);
}
.nav-link::after {
  content: ''; position: absolute; left: 0; bottom: 0; width: 0; height: 2px;
  background: var(--accent); border-radius: 2px; transition: width var(--transition);
}
.nav-link:hover { color: var(--primary); }
.nav-link:hover::after { width: 100%; }
.nav-link.active { color: var(--primary); font-weight: 600; }
.nav-link.active::after { width: 100%; }
.header-cta { padding: 10px 22px; font-size: 14px; }

/* ===== 页面 Banner ===== */
.page-banner {
  position: relative;
  min-height: 340px;
  display: flex;
  align-items: center;
  background-size: cover;
  background-position: center;
  color: #fff;
  overflow: hidden;
}
.banner-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(125deg, rgba(7, 22, 42, 0.93), rgba(15, 43, 79, 0.85) 45%, rgba(29, 78, 138, 0.68));
}
.banner-overlay::before {
  content: ''; position: absolute; inset: 0;
  background-image: radial-gradient(rgba(255,255,255,0.13) 1px, transparent 1px);
  background-size: 28px 28px;
  opacity: 0.35;
}
.banner-content { position: relative; z-index: 2; width: 100%; padding: 56px 0; }
.breadcrumb { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; font-size: 13px; color: rgba(255,255,255,0.7); margin-bottom: 22px; }
.breadcrumb a { color: rgba(255,255,255,0.8); }
.breadcrumb a:hover { color: var(--accent-light); }
.breadcrumb-sep { font-size: 10px; opacity: 0.7; }
.breadcrumb-current { color: var(--accent-light); }
.banner-heading { max-width: 720px; }
.banner-tag {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.2);
  padding: 6px 16px; border-radius: 30px; font-size: 13px; font-weight: 500;
  color: var(--accent-light); margin-bottom: 18px;
}
.banner-title { font-size: 42px; color: #fff; letter-spacing: 1px; font-weight: 800; margin-bottom: 10px; }
.banner-subtitle { font-size: 16px; color: rgba(255,255,255,0.8); max-width: 560px; }

/* ===== 文章主体区域 ===== */
.article-section { padding: 70px 0 80px; }
.article-layout { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 40px; align-items: start; }
.article-main { min-width: 0; }
.article-card {
  position: relative;
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 44px 48px;
  overflow: hidden;
  border: 1px solid rgba(223, 229, 238, 0.6);
}
.article-card::before {
  content: ''; position: absolute; top: 0; left: 0; width: 4px; height: 100%;
  background: linear-gradient(to bottom, var(--accent), var(--accent-dark));
}
.article-header { margin-bottom: 28px; }
.article-title { font-size: 30px; font-weight: 800; line-height: 1.35; color: var(--text); margin-bottom: 18px; letter-spacing: 0.5px; }
.article-meta { display: flex; align-items: center; flex-wrap: wrap; gap: 14px; font-size: 13px; color: var(--text-muted); }
.article-meta .badge { background: var(--bg-deep); color: var(--primary); }
.meta-divider { width: 1px; height: 16px; background: var(--border); }
.article-date { display: inline-flex; align-items: center; gap: 6px; }

/* ===== 文章内容 ===== */
.article-content { font-size: 16px; line-height: 1.9; color: var(--text-body); }
.article-content h2 {
  font-size: 23px; font-weight: 700; color: var(--text);
  margin: 2.2rem 0 1rem; padding-left: 16px;
  border-left: 4px solid var(--accent); border-radius: 0 4px 4px 0;
}
.article-content h3 { font-size: 19px; font-weight: 700; color: var(--text); margin: 1.8rem 0 0.8rem; }
.article-content p { margin: 1.1rem 0; }
.article-content a { color: var(--primary-light); border-bottom: 1px solid transparent; }
.article-content a:hover { border-bottom-color: var(--accent); color: var(--primary); }
.article-content ul, .article-content ol { margin: 1.1rem 0; padding-left: 1.6rem; line-height: 1.8; }
.article-content ul { list-style: disc; }
.article-content ol { list-style: decimal; }
.article-content li { margin: 0.4rem 0; }
.article-content img { max-width: 100%; border-radius: 12px; box-shadow: var(--shadow); margin: 1.6rem 0; }
.article-content blockquote {
  border-left: 4px solid var(--accent); background: #fbf8f2;
  padding: 1rem 1.5rem; margin: 1.6rem 0; border-radius: 0 12px 12px 0; color: var(--text-body);
}
.article-content blockquote p { margin: 0.4rem 0; }
.article-content table { width: 100%; border-collapse: collapse; margin: 1.5rem 0; font-size: 14px; }
.article-content table th, .article-content table td { padding: 10px 14px; border: 1px solid var(--border); text-align: left; }
.article-content table th { background: var(--bg-deep); color: var(--text); font-weight: 600; }

/* ===== 内容未找到 ===== */
.not-found { text-align: center; padding: 48px 20px; }
.not-found-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 72px; height: 72px; background: #fef3e2; color: var(--accent-dark);
  border-radius: 50%; font-size: 30px; margin-bottom: 22px;
}
.not-found h2 { font-size: 24px; margin-bottom: 10px; }
.not-found p { color: var(--text-muted); margin-bottom: 24px; }

/* ===== 文章底部 ===== */
.article-footer {
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px;
  margin-top: 36px; padding-top: 28px; border-top: 1px solid var(--border);
}
.article-tags { display: flex; flex-wrap: wrap; gap: 8px; }

/* ===== 侧边栏 ===== */
.article-sidebar { display: flex; flex-direction: column; gap: 24px; }
.side-widget {
  background: var(--surface); border-radius: var(--radius-lg);
  box-shadow: var(--shadow); padding: 26px;
  border: 1px solid rgba(223, 229, 238, 0.5);
}
.side-widget-title {
  font-size: 16px; font-weight: 700; color: var(--text);
  margin-bottom: 18px; display: flex; align-items: center; gap: 10px;
}
.side-widget-title i { color: var(--accent); font-size: 14px; }

/* 引导卡 */
.guide-card { padding: 0; overflow: hidden; }
.guide-card-img { position: relative; height: 180px; overflow: hidden; }
.guide-card-img img { width: 100%; height: 100%; object-fit: cover; }
.guide-card-overlay {
  position: absolute; inset: 0; background: linear-gradient(to bottom, transparent, rgba(8, 28, 54, 0.65));
}
.guide-card-body { padding: 24px 26px 26px; }
.guide-card-body h3 { font-size: 18px; margin-bottom: 6px; color: var(--text); }
.guide-card-body > p { font-size: 13px; color: var(--text-muted); margin-bottom: 16px; }
.guide-steps { display: flex; flex-direction: column; gap: 10px; margin-bottom: 20px; }
.guide-step {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 14px; background: var(--bg); border-radius: 12px;
  font-size: 13px; font-weight: 500; color: var(--text);
  border: 1px solid transparent; transition: all var(--transition);
}
.guide-step:hover { border-color: var(--accent); background: #fdf9f1; transform: translateX(3px); }
.step-num {
  flex-shrink: 0; width: 28px; height: 28px; display: flex; align-items: center; justify-content: center;
  background: var(--primary); color: #fff; border-radius: 50%; font-size: 11px; font-weight: 700;
}
.guide-step:nth-child(2) .step-num { background: var(--accent); color: var(--primary-dark); }

/* 最新资讯 */
.latest-list li {
  padding: 13px 0; border-bottom: 1px solid var(--border); transition: padding-left var(--transition);
}
.latest-list li:last-child { border-bottom: none; padding-bottom: 0; }
.latest-list li:hover { padding-left: 8px; }
.latest-list a { display: block; }
.latest-title { display: block; font-size: 14px; font-weight: 500; color: var(--text); line-height: 1.5; margin-bottom: 6px; transition: color var(--transition); }
.latest-list a:hover .latest-title { color: var(--primary-light); }
.latest-meta { display: flex; align-items: center; justify-content: space-between; font-size: 12px; color: var(--text-muted); }
.latest-cat {
  background: var(--bg-deep); padding: 2px 10px; border-radius: 20px; color: var(--primary);
  font-size: 11px; font-weight: 500;
}

/* 安全提示 */
.safety-tip { background: linear-gradient(140deg, #fffaf0, #fffdf8); border-color: #f0e2c6; }
.safety-icon {
  width: 44px; height: 44px; background: var(--accent); border-radius: 50%;
  display: flex; align-items: center; justify-content: center; color: #fff;
  font-size: 18px; margin-bottom: 14px; box-shadow: var(--shadow-accent);
}
.safety-tip p { font-size: 13px; color: var(--text-body); line-height: 1.75; }

.empty-tip { font-size: 13px; color: var(--text-muted); padding: 8px 0; }

/* ===== CTA 区域 ===== */
.cta-section { padding: 20px 0 80px; }
.cta-box {
  position: relative;
  background: linear-gradient(130deg, var(--primary-dark), var(--primary) 55%, var(--primary-light));
  border-radius: var(--radius-lg);
  padding: 56px 48px;
  text-align: center;
  overflow: hidden;
  color: #fff;
  box-shadow: var(--shadow-lg);
}
.cta-box::before {
  content: ''; position: absolute; inset: 0;
  background-image: radial-gradient(rgba(255,255,255,0.12) 1px, transparent 1px);
  background-size: 22px 22px; opacity: 0.4;
}
.cta-box::after {
  content: ''; position: absolute; top: -80px; right: -80px; width: 260px; height: 260px;
  background: rgba(216, 169, 74, 0.2); border-radius: 50%;
}
.cta-inner { position: relative; z-index: 3; max-width: 600px; margin: 0 auto; }
.cta-icon {
  width: 56px; height: 56px; margin: 0 auto 18px;
  background: var(--accent); border-radius: 16px; display: flex;
  align-items: center; justify-content: center; font-size: 22px; color: var(--primary-dark);
  box-shadow: var(--shadow-accent);
}
.cta-box h2 { font-size: 28px; color: #fff; margin-bottom: 12px; letter-spacing: 0.5px; }
.cta-box p { font-size: 15px; color: rgba(255,255,255,0.85); margin-bottom: 28px; }
.cta-actions { display: flex; justify-content: center; flex-wrap: wrap; gap: 14px; }

/* ===== 页脚 ===== */
.site-footer { background: var(--primary-dark); color: rgba(255,255,255,0.7); padding: 64px 0 0; margin-top: 20px; }
.footer-inner { display: grid; grid-template-columns: 1.4fr 1fr; gap: 48px; padding-bottom: 44px; }
.footer-brand .logo { color: #fff; font-size: 20px; margin-bottom: 16px; }
.footer-brand .logo span { color: var(--accent); }
.footer-brand p { font-size: 14px; line-height: 1.8; max-width: 400px; }
.footer-nav h4 { color: #fff; font-size: 16px; margin-bottom: 16px; }
.footer-nav a { display: block; padding: 6px 0; font-size: 14px; color: rgba(255,255,255,0.7); }
.footer-nav a:hover { color: var(--accent-light); padding-left: 6px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding: 20px 0;
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px;
  font-size: 12px; color: rgba(255,255,255,0.5);
}

/* ===== 移动端底部导航 ===== */
.mobile-tabbar {
  position: fixed; bottom: 18px; left: 50%; transform: translateX(-50%);
  display: none; align-items: center; gap: 4px;
  background: var(--primary-dark); border-radius: 60px;
  padding: 6px; z-index: 300;
  box-shadow: 0 10px 36px rgba(7, 22, 42, 0.45);
  border: 1px solid rgba(255,255,255,0.12);
}
.tab-item {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 22px; border-radius: 50px;
  font-size: 14px; font-weight: 500; color: rgba(255,255,255,0.7);
  transition: all var(--transition);
}
.tab-item:hover { color: #fff; background: rgba(255,255,255,0.08); }
.tab-item.active { background: var(--accent); color: var(--primary-dark); font-weight: 600; }
.tab-item i { font-size: 15px; }

/* ===== 响应式 ===== */
@media (max-width: 992px) {
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar { display: grid; grid-template-columns: repeat(3, 1fr); align-items: start; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .page-banner { min-height: 300px; }
}

@media (max-width: 768px) {
  .desktop-nav { display: none; }
  .header-cta { display: none; }
  body { padding-bottom: 90px; }
  .mobile-tabbar { display: flex; }
  .article-section { padding: 40px 0 50px; }
  .article-card { padding: 28px 22px; }
  .article-title { font-size: 23px; }
  .banner-title { font-size: 30px; }
  .article-sidebar { grid-template-columns: 1fr; }
  .cta-box { padding: 40px 24px; }
  .cta-box h2 { font-size: 22px; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 520px) {
  .container { padding-left: 18px; padding-right: 18px; }
  .page-banner { min-height: 250px; }
  .banner-title { font-size: 24px; }
  .banner-subtitle { font-size: 14px; }
  .article-card { padding: 24px 18px; border-radius: 14px; }
  .article-title { font-size: 20px; }
  .article-content { font-size: 15px; }
  .article-meta { gap: 8px; }
  .meta-divider { display: none; }
  .article-footer { flex-direction: column; align-items: flex-start; }
  .cta-actions { flex-direction: column; width: 100%; }
  .cta-actions .btn { width: 100%; }
  .mobile-tabbar { bottom: 12px; }
  .tab-item { padding: 9px 16px; font-size: 13px; gap: 6px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .footer-nav a { padding: 5px 0; }
}