/* roulang page: index */
:root {
  --brand-primary: #1b2a4a;
  --brand-secondary: #f0b429;
  --brand-secondary-dark: #d99f1b;
  --brand-dark: #0f1a30;
  --brand-bg: #f5f7fb;
  --brand-white: #ffffff;
  --brand-text: #1f2a3d;
  --brand-text-light: #6d7a90;
  --brand-border: #e6eaf0;
  --brand-radius-lg: 20px;
  --brand-radius-md: 14px;
  --brand-radius-sm: 8px;
  --brand-shadow-sm: 0 2px 10px rgba(27, 42, 74, 0.06);
  --brand-shadow-md: 0 6px 24px rgba(27, 42, 74, 0.10);
  --brand-shadow-lg: 0 12px 40px rgba(27, 42, 74, 0.14);
  --brand-transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --sidebar-width: 280px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--brand-bg);
  color: var(--brand-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: var(--brand-transition); }
ul, ol { list-style: none; }
button { border: none; background: none; cursor: pointer; font-family: inherit; }
input, textarea { font-family: inherit; }

/* ====== Sidebar 左侧竖向导航 ====== */
.sidebar {
  position: fixed;
  top: 0; left: 0; bottom: 0;
  width: var(--sidebar-width);
  background: linear-gradient(180deg, #16233d 0%, #1b2a4a 100%);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 40px 28px;
  z-index: 100;
  overflow-y: auto;
}
.sidebar-brand {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.sidebar-brand .logo {
  font-size: 28px;
  font-weight: 800;
  color: var(--brand-white);
  letter-spacing: 1px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.sidebar-brand .logo i {
  color: var(--brand-secondary);
  font-size: 24px;
}
.sidebar-brand .logo-tag {
  color: rgba(255,255,255,0.6);
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding-left: 4px;
  border-left: 2px solid var(--brand-secondary);
}
.sidebar-nav {
  margin: 48px 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.sidebar-nav .nav-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 13px 16px;
  border-radius: var(--brand-radius-md);
  color: rgba(255,255,255,0.72);
  font-size: 15px;
  font-weight: 500;
  position: relative;
  transition: var(--brand-transition);
  border: 1px solid transparent;
}
.sidebar-nav .nav-item i {
  width: 20px;
  text-align: center;
  font-size: 16px;
  opacity: 0.8;
}
.sidebar-nav .nav-item:hover {
  background: rgba(255,255,255,0.08);
  color: var(--brand-white);
  transform: translateX(4px);
}
.sidebar-nav .nav-item.active {
  background: rgba(240, 180, 41, 0.16);
  border-color: rgba(240, 180, 41, 0.30);
  color: var(--brand-secondary);
  font-weight: 600;
}
.sidebar-nav .nav-item.active::before {
  content: '';
  position: absolute;
  left: -28px;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 24px;
  background: var(--brand-secondary);
  border-radius: 0 4px 4px 0;
}
.sidebar-footer {
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.10);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.sidebar-footer p {
  color: rgba(255,255,255,0.45);
  font-size: 12px;
  margin: 0;
}
.sidebar-footer .domain-line {
  font-family: "SF Mono", "Fira Code", monospace;
  font-size: 11px;
  letter-spacing: 0.5px;
  color: rgba(255,255,255,0.35);
}
.sidebar-social {
  display: flex;
  gap: 12px;
}
.sidebar-social a {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,0.7);
  font-size: 14px;
  transition: var(--brand-transition);
}
.sidebar-social a:hover {
  background: var(--brand-secondary);
  color: var(--brand-dark);
  transform: translateY(-3px);
}

/* ====== Mobile Header ====== */
.mobile-header {
  display: none;
  position: sticky;
  top: 0;
  z-index: 200;
  background: var(--brand-primary);
  padding: 14px 20px;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 2px 12px rgba(0,0,0,0.15);
}
.mobile-header .logo {
  color: var(--brand-white);
  font-size: 20px;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 8px;
}
.mobile-header .logo i { color: var(--brand-secondary); }
.menu-toggle {
  width: 42px; height: 42px;
  border-radius: var(--brand-radius-sm);
  background: rgba(255,255,255,0.10);
  color: var(--brand-white);
  font-size: 18px;
  display: flex; align-items: center; justify-content: center;
  transition: var(--brand-transition);
}
.menu-toggle:hover { background: rgba(255,255,255,0.20); }
.mobile-menu {
  display: none;
  position: fixed;
  top: 72px; left: 0; right: 0;
  background: var(--brand-primary);
  padding: 16px 20px;
  z-index: 199;
  flex-direction: column;
  gap: 4px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.20);
}
.mobile-menu a {
  color: rgba(255,255,255,0.8);
  font-size: 15px;
  font-weight: 500;
  padding: 12px 14px;
  border-radius: var(--brand-radius-sm);
  display: flex;
  align-items: center;
  gap: 12px;
}
.mobile-menu a i { width: 18px; text-align: center; }
.mobile-menu a:hover { background: rgba(255,255,255,0.08); color: var(--brand-white); }
.mobile-menu a.active { background: rgba(240,180,41,0.15); color: var(--brand-secondary); }
.mobile-menu.open { display: flex; }

/* ====== Main Wrapper ====== */
.main-wrapper {
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.content-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 48px;
  width: 100%;
}

/* ====== Hero Section ====== */
.hero-section {
  position: relative;
  padding: 100px 0;
  background:
    linear-gradient(135deg, rgba(15, 26, 48, 0.92) 0%, rgba(27, 42, 74, 0.82) 50%, rgba(27, 42, 74, 0.60) 100%),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  overflow: hidden;
}
.hero-section::after {
  content: '';
  position: absolute;
  bottom: -80px; right: -80px;
  width: 320px; height: 320px;
  background: radial-gradient(circle, rgba(240,180,41,0.18) 0%, transparent 70%);
  pointer-events: none;
}
.hero-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 60px;
  position: relative;
  z-index: 2;
}
.hero-left { flex: 1.2; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(240,180,41,0.15);
  border: 1px solid rgba(240,180,41,0.3);
  color: var(--brand-secondary);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 40px;
  letter-spacing: 0.5px;
  margin-bottom: 24px;
  backdrop-filter: blur(4px);
}
.hero-badge .dot-pulse {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--brand-secondary);
  animation: pulse-dot 1.6s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 0 0 rgba(240,180,41,0.6); }
  50% { box-shadow: 0 0 0 6px rgba(240,180,41,0); }
}
.hero-title {
  font-size: 46px;
  line-height: 1.25;
  font-weight: 800;
  color: var(--brand-white);
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}
.hero-title .highlight {
  color: var(--brand-secondary);
  position: relative;
}
.hero-subtitle {
  font-size: 17px;
  line-height: 1.8;
  color: rgba(255,255,255,0.78);
  max-width: 520px;
  margin-bottom: 34px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  transition: var(--brand-transition);
  cursor: pointer;
}
.btn-primary-custom {
  background: var(--brand-secondary);
  color: var(--brand-dark);
  box-shadow: 0 4px 18px rgba(240,180,41,0.35);
}
.btn-primary-custom:hover {
  background: #f7c142;
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(240,180,41,0.45);
}
.btn-outline-light {
  background: transparent;
  color: var(--brand-white);
  border: 1.5px solid rgba(255,255,255,0.5);
}
.btn-outline-light:hover {
  border-color: var(--brand-white);
  background: rgba(255,255,255,0.10);
  transform: translateY(-2px);
}
.hero-right {
  flex: 0.8;
  max-width: 360px;
}
.hero-card {
  background: rgba(255,255,255,0.06);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--brand-radius-lg);
  padding: 28px;
  box-shadow: var(--brand-shadow-lg);
}
.hero-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}
.hero-card-header span {
  color: rgba(255,255,255,0.6);
  font-size: 14px;
  font-weight: 500;
}
.hero-card-header .live-badge {
  background: rgba(240,80,80,0.25);
  color: #ff8a80;
  font-size: 11px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  gap: 4px;
}
.hero-card-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.hero-card-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}
.hero-card-item .icon {
  width: 36px; height: 36px;
  border-radius: 10px;
  background: rgba(240,180,41,0.15);
  color: var(--brand-secondary);
  display: flex; align-items: center; justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
}
.hero-card-item p {
  color: rgba(255,255,255,0.84);
  font-size: 13px;
  line-height: 1.6;
  margin: 0;
}
.hero-card-item p strong {
  display: block;
  color: var(--brand-white);
  font-size: 14px;
  margin-bottom: 2px;
}

/* ====== Ticker Section ====== */
.ticker-section {
  background: var(--brand-primary);
  border-bottom: 3px solid var(--brand-secondary);
  overflow: hidden;
  white-space: nowrap;
}
.ticker-track {
  display: inline-block;
  padding: 12px 40px;
  animation: ticker-scroll 30s linear infinite;
  font-size: 14px;
  color: rgba(255,255,255,0.85);
  letter-spacing: 0.3px;
}
.ticker-track i {
  color: var(--brand-secondary);
  margin-right: 6px;
}
.ticker-track span.sep {
  margin: 0 18px;
  color: rgba(255,255,255,0.3);
}
@keyframes ticker-scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ====== Section Common ====== */
.section {
  padding: 80px 0;
}
.section-dark {
  background: var(--brand-dark);
  color: var(--brand-white);
}
.section-muted {
  background: linear-gradient(180deg, #eef2f8 0%, #f5f7fb 100%);
}
.section-header {
  text-align: center;
  margin-bottom: 52px;
}
.section-header .eyebrow {
  display: inline-block;
  color: var(--brand-secondary);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-header h2 {
  font-size: 34px;
  font-weight: 800;
  color: var(--brand-text);
  line-height: 1.3;
  margin-bottom: 16px;
  letter-spacing: -0.3px;
}
.section-header p {
  font-size: 16px;
  color: var(--brand-text-light);
  max-width: 600px;
  margin: 0 auto;
}
.section-header.light h2 { color: var(--brand-white); }
.section-header.light p { color: rgba(255,255,255,0.6); }

/* ====== Features ====== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.feature-card {
  background: var(--brand-white);
  border-radius: var(--brand-radius-lg);
  padding: 36px 30px;
  border: 1px solid var(--brand-border);
  box-shadow: var(--brand-shadow-sm);
  transition: var(--brand-transition);
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--brand-secondary), #ffca5e);
  opacity: 0;
  transition: var(--brand-transition);
}
.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--brand-shadow-lg);
}
.feature-card:hover::before { opacity: 1; }
.feature-icon {
  width: 64px; height: 64px;
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(240,180,41,0.12), rgba(240,180,41,0.04));
  display: flex; align-items: center; justify-content: center;
  font-size: 24px;
  color: var(--brand-primary);
  margin-bottom: 22px;
}
.feature-card h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--brand-text);
  margin-bottom: 12px;
}
.feature-card p {
  font-size: 14px;
  color: var(--brand-text-light);
  line-height: 1.7;
  margin: 0;
}

/* ====== Category Cards ====== */
.category-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}
.category-card {
  background: var(--brand-white);
  border-radius: var(--brand-radius-lg);
  overflow: hidden;
  border: 1px solid var(--brand-border);
  box-shadow: var(--brand-shadow-sm);
  transition: var(--brand-transition);
  display: flex;
  flex-direction: column;
}
.category-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--brand-shadow-lg);
}
.category-card .cat-image {
  position: relative;
  height: 200px;
  overflow: hidden;
}
.category-card .cat-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.category-card:hover .cat-image img {
  transform: scale(1.06);
}
.category-card .cat-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(15,26,48,0) 40%, rgba(15,26,48,0.6) 100%);
}
.category-card .cat-body {
  padding: 28px 28px 32px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.category-card .cat-body .cat-label {
  display: inline-block;
  background: rgba(240,180,41,0.12);
  color: #c98d0a;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
  align-self: flex-start;
  margin-bottom: 14px;
  letter-spacing: 0.5px;
}
.category-card h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--brand-text);
}
.category-card p {
  font-size: 14px;
  color: var(--brand-text-light);
  flex: 1;
  margin-bottom: 22px;
  line-height: 1.7;
}
.category-card .cat-link {
  color: var(--brand-primary);
  font-weight: 600;
  font-size: 15px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.category-card .cat-link i {
  transition: transform 0.3s ease;
}
.category-card .cat-link:hover i {
  transform: translateX(6px);
}

/* ====== Latest News / CMS List ====== */
.news-layout {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 44px;
  align-items: start;
}
.news-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.news-item {
  background: var(--brand-white);
  border: 1px solid var(--brand-border);
  border-radius: var(--brand-radius-md);
  padding: 24px 26px;
  transition: var(--brand-transition);
  display: flex;
  gap: 18px;
  align-items: flex-start;
}
.news-item:hover {
  box-shadow: var(--brand-shadow-md);
  transform: translateX(4px);
  border-left: 3px solid var(--brand-secondary);
}
.news-item .news-content { flex: 1; }
.news-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}
.news-meta .news-cat {
  background: var(--brand-primary);
  color: var(--brand-white);
  font-size: 11px;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: 20px;
}
.news-meta .news-date {
  font-size: 12px;
  color: var(--brand-text-light);
  display: flex;
  align-items: center;
  gap: 5px;
}
.news-item h3 {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 8px;
}
.news-item h3 a {
  color: var(--brand-text);
}
.news-item h3 a:hover { color: var(--brand-primary); }
.news-item .news-summary {
  font-size: 14px;
  color: var(--brand-text-light);
  line-height: 1.7;
  margin: 0;
}
.news-empty {
  background: var(--brand-white);
  border: 1px dashed var(--brand-border);
  border-radius: var(--brand-radius-md);
  padding: 40px;
  text-align: center;
  color: var(--brand-text-light);
  font-size: 15px;
}
.news-aside {
  background: var(--brand-white);
  border-radius: var(--brand-radius-lg);
  border: 1px solid var(--brand-border);
  box-shadow: var(--brand-shadow-sm);
  padding: 28px;
  position: sticky;
  top: 30px;
}
.news-aside .aside-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--brand-text);
}
.news-aside .aside-title i { color: var(--brand-secondary); }
.aside-tips {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.aside-tip-item {
  display: flex;
  gap: 12px;
  padding: 14px;
  background: var(--brand-bg);
  border-radius: var(--brand-radius-sm);
  border-left: 3px solid var(--brand-primary);
}
.aside-tip-item i {
  color: var(--brand-secondary);
  font-size: 16px;
  margin-top: 2px;
}
.aside-tip-item p {
  font-size: 13px;
  color: var(--brand-text-light);
  margin: 0;
  line-height: 1.6;
}
.aside-tip-item p strong {
  color: var(--brand-text);
  display: block;
  margin-bottom: 2px;
  font-size: 14px;
}

/* ====== Stats & Process ====== */
.stats-process-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 44px;
  align-items: center;
}
.stats-block {
  background: var(--brand-white);
  border-radius: var(--brand-radius-lg);
  border: 1px solid var(--brand-border);
  padding: 36px;
  box-shadow: var(--brand-shadow-sm);
}
.stats-number-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}
.stat-number {
  text-align: center;
  padding: 20px 12px;
  border-radius: var(--brand-radius-md);
  background: var(--brand-bg);
  transition: var(--brand-transition);
}
.stat-number:hover {
  background: var(--brand-white);
  box-shadow: var(--brand-shadow-sm);
}
.stat-number .num {
  font-size: 36px;
  font-weight: 800;
  color: var(--brand-primary);
  line-height: 1.2;
}
.stat-number .num em {
  font-style: normal;
  color: var(--brand-secondary);
}
.stat-number .label {
  font-size: 13px;
  color: var(--brand-text-light);
  margin-top: 6px;
}
.process-block {
  background: var(--brand-dark);
  border-radius: var(--brand-radius-lg);
  padding: 40px;
  color: var(--brand-white);
  position: relative;
  overflow: hidden;
}
.process-block::after {
  content: '';
  position: absolute;
  top: -40px; right: -40px;
  width: 160px; height: 160px;
  background: rgba(240,180,41,0.08);
  border-radius: 50%;
}
.process-block h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 28px;
  position: relative;
  z-index: 2;
}
.process-steps {
  display: flex;
  flex-direction: column;
  gap: 22px;
  position: relative;
  z-index: 2;
}
.process-step {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  position: relative;
}
.process-step:not(:last-child)::before {
  content: '';
  position: absolute;
  left: 20px; top: 46px; bottom: -22px;
  width: 2px;
  background: rgba(255,255,255,0.12);
}
.process-step .step-num {
  width: 42px; height: 42px;
  border-radius: 50%;
  background: var(--brand-secondary);
  color: var(--brand-dark);
  font-weight: 700;
  font-size: 16px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 4px 14px rgba(240,180,41,0.3);
  position: relative;
  z-index: 2;
}
.process-step .step-body h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}
.process-step .step-body p {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  margin: 0;
  line-height: 1.6;
}

/* ====== FAQ ====== */
.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.faq-item {
  background: var(--brand-white);
  border: 1px solid var(--brand-border);
  border-radius: var(--brand-radius-md);
  overflow: hidden;
  transition: var(--brand-transition);
}
.faq-item:hover {
  border-color: rgba(240,180,41,0.4);
  box-shadow: var(--brand-shadow-sm);
}
.faq-item summary {
  padding: 22px 28px;
  font-size: 16px;
  font-weight: 600;
  color: var(--brand-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '\f078';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  font-size: 14px;
  color: var(--brand-secondary);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}
.faq-item[open] summary::after {
  transform: rotate(180deg);
}
.faq-item .faq-answer {
  padding: 0 28px 24px;
  color: var(--brand-text-light);
  font-size: 14px;
  line-height: 1.8;
  border-top: 1px solid var(--brand-border);
  margin-top: 4px;
  padding-top: 18px;
}
.faq-item[open] .faq-answer { display: block; }

/* ====== CTA Section ====== */
.cta-section {
  background:
    linear-gradient(120deg, rgba(15,26,48,0.93), rgba(27,42,74,0.80)),
    url('/assets/images/backpic/back-2.png') center/cover fixed no-repeat;
  padding: 90px 0;
  text-align: center;
  position: relative;
}
.cta-section::before {
  content: '';
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 80px; height: 4px;
  background: var(--brand-secondary);
  border-radius: 0 0 4px 4px;
}
.cta-section h2 {
  font-size: 36px;
  font-weight: 800;
  color: var(--brand-white);
  line-height: 1.3;
  margin-bottom: 16px;
}
.cta-section p {
  font-size: 16px;
  color: rgba(255,255,255,0.7);
  max-width: 560px;
  margin: 0 auto 36px;
  line-height: 1.8;
}
.cta-section .btn { margin: 0 8px; }

/* ====== Footer ====== */
.footer {
  background: var(--brand-dark);
  color: rgba(255,255,255,0.6);
  padding: 60px 0 30px;
  margin-top: 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-logo {
  font-size: 24px;
  font-weight: 800;
  color: var(--brand-white);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.footer-logo i { color: var(--brand-secondary); }
.footer-desc {
  font-size: 14px;
  color: rgba(255,255,255,0.5);
  line-height: 1.8;
  max-width: 300px;
}
.footer-col h4 {
  color: var(--brand-white);
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 18px;
  letter-spacing: 0.5px;
}
.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-col ul a {
  color: rgba(255,255,255,0.5);
  font-size: 14px;
}
.footer-col ul a:hover {
  color: var(--brand-secondary);
  padding-left: 6px;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.10);
  padding-top: 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: rgba(255,255,255,0.38);
  flex-wrap: wrap;
  gap: 10px;
}
.footer-bottom .footer-copyright a {
  color: rgba(255,255,255,0.5);
  font-family: "SF Mono", "Fira Code", monospace;
}
.footer-bottom .footer-copyright a:hover { color: var(--brand-secondary); }

/* ====== Button focus ====== */
.btn:focus-visible {
  outline: 3px solid rgba(240,180,41,0.5);
  outline-offset: 3px;
}
a:focus-visible {
  outline: 2px solid rgba(240,180,41,0.5);
  outline-offset: 2px;
  border-radius: 4px;
}
.sidebar-nav .nav-item:focus-visible,
.mobile-menu a:focus-visible {
  outline-color: var(--brand-secondary);
}

/* ====== Responsive ====== */
@media screen and (max-width: 1024px) {
  .sidebar { display: none; }
  .mobile-header { display: flex; }
  .main-wrapper { margin-left: 0; }
  .content-container { padding: 0 32px; }
  .hero-section { padding: 70px 0; }
  .hero-inner { flex-direction: column; gap: 40px; }
  .hero-right { max-width: 100%; width: 100%; }
  .feature-grid { grid-template-columns: repeat(3, 1fr); }
  .category-grid { grid-template-columns: 1fr 1fr; }
  .news-layout { grid-template-columns: 1fr; gap: 32px; }
  .news-aside { position: static; }
  .stats-process-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media screen and (max-width: 768px) {
  .content-container { padding: 0 24px; }
  .hero-section { padding: 56px 0; }
  .hero-title { font-size: 32px; }
  .hero-subtitle { font-size: 15px; }
  .section { padding: 56px 0; }
  .section-header h2 { font-size: 26px; }
  .section-header p { font-size: 14px; }
  .feature-grid { grid-template-columns: 1fr; gap: 18px; }
  .category-grid { grid-template-columns: 1fr; }
  .stats-number-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  .stat-number .num { font-size: 30px; }
  .process-block { padding: 30px 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .cta-section { padding: 60px 0; }
  .cta-section h2 { font-size: 26px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { justify-content: center; }
  .news-item { flex-direction: column; gap: 12px; padding: 18px; }
}
@media screen and (max-width: 520px) {
  .content-container { padding: 0 16px; }
  .hero-title { font-size: 28px; }
  .hero-card { padding: 20px; }
  .hero-card-item p { font-size: 12px; }
  .stats-number-grid { grid-template-columns: 1fr; }
  .news-meta { gap: 8px; }
  .news-item h3 { font-size: 16px; }
  .btn { padding: 12px 22px; font-size: 14px; width: 100%; }
  .faq-item summary { padding: 18px 20px; font-size: 15px; }
  .faq-item .faq-answer { padding: 0 20px 20px; }
  .ticker-track { font-size: 12px; padding: 10px 20px; }
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
:root {
  --primary: #2563eb;
  --primary-dark: #1e40af;
  --primary-light: #eff6ff;
  --accent: #f59e0b;
  --accent-light: #fef3c7;
  --success: #10b981;
  --success-light: #d1fae5;
  --bg: #f8fafc;
  --surface: #ffffff;
  --text: #0f172a;
  --text-light: #64748b;
  --border: #e2e8f0;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --shadow: 0 4px 20px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 12px 40px rgba(15, 23, 42, 0.1);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --sidebar-width: 240px;
}

/* ===== 基础 Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary-dark); }
img { max-width: 100%; display: block; }
button, input, select, textarea { font-family: inherit; font-size: inherit; line-height: inherit; }
ul, ol { list-style: none; }

/* ===== 布局容器 ===== */
.app-layout { display: flex; min-height: 100vh; }

.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  display: flex;
  flex-direction: column;
}

/* ===== 侧边导航 ===== */
.sidebar {
  width: var(--sidebar-width);
  background: var(--surface);
  border-right: 1px solid var(--border);
  position: fixed;
  top: 0; bottom: 0; left: 0;
  z-index: 300;
  display: flex;
  flex-direction: column;
  padding: 28px 18px 20px;
  overflow-y: auto;
  transition: transform 0.3s ease;
}
.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 800;
  color: var(--text);
  padding: 0 8px 22px;
  border-bottom: 1px solid var(--border);
}
.sidebar-brand i { color: var(--primary); font-size: 26px; }
.sidebar-nav { display: flex; flex-direction: column; gap: 6px; padding-top: 22px; flex: 1; }
.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-light);
  font-weight: 600;
  font-size: 15px;
  transition: all var(--transition);
}
.nav-item i { width: 20px; text-align: center; font-size: 16px; }
.nav-item:hover {
  background: var(--primary-light);
  color: var(--primary);
  transform: translateX(4px);
}
.nav-item.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 6px 16px rgba(37, 99, 235, 0.3);
}
.sidebar-footer {
  margin-top: auto;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-light);
  text-align: center;
}

/* ===== 移动端顶部导航 ===== */
.mobile-header {
  display: none;
  position: sticky;
  top: 0;
  z-index: 200;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 12px 16px;
  align-items: center;
  justify-content: space-between;
}
.mobile-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  font-size: 19px;
  color: var(--text);
}
.mobile-brand i { color: var(--primary); }
.mobile-toggle {
  background: transparent;
  border: 1px solid var(--border);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text);
  transition: background var(--transition);
}
.mobile-toggle:hover { background: var(--primary-light); }
.mobile-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0; right: 0;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 12px 16px 16px;
  flex-direction: column;
  gap: 6px;
  box-shadow: var(--shadow-lg);
}
.mobile-menu.open { display: flex; }
.mobile-nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-light);
  font-weight: 600;
}
.mobile-nav-link i { width: 20px; text-align: center; }
.mobile-nav-link:hover { background: var(--primary-light); color: var(--primary); }
.mobile-nav-link.active { background: var(--primary); color: #fff; }

/* ===== 通用按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 15px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
  justify-content: center;
}
.btn i { font-size: 15px; }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 6px 18px rgba(37,99,235,0.3); }
.btn-primary:hover { background: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 10px 26px rgba(37,99,235,0.35); }
.btn-outline { background: transparent; color: var(--primary); border-color: var(--primary); }
.btn-outline:hover { background: var(--primary-light); color: var(--primary-dark); transform: translateY(-2px); }
.btn-accent { background: var(--accent); color: #fff; box-shadow: 0 6px 18px rgba(245,158,11,0.3); }
.btn-accent:hover { background: #d97706; color: #fff; transform: translateY(-2px); }
.btn-white { background: #fff; color: var(--text); }
.btn-white:hover { background: var(--primary-light); color: var(--primary); transform: translateY(-2px); }

/* ===== 标签/徽章 ===== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 700;
  background: var(--primary-light);
  color: var(--primary);
}
.badge-accent { background: var(--accent-light); color: #b45309; }
.badge-success { background: var(--success-light); color: #047857; }
.tag {
  display: inline-block;
  padding: 3px 12px;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 600;
  background: var(--primary-light);
  color: var(--primary);
}

/* ===== Hero ===== */
.page-hero {
  position: relative;
  background: linear-gradient(135deg, rgba(15,23,42,0.85) 0%, rgba(30,64,175,0.7) 100%), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  padding: 88px 10% 76px;
  color: #fff;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  overflow: hidden;
}
.page-hero .hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  border-radius: 50px;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(6px);
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 20px;
  border: 1px solid rgba(255,255,255,0.2);
}
.hero-badge i { color: #fbbf24; }
.page-hero h1 {
  font-size: clamp(32px, 4vw, 52px);
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: 1px;
}
.page-hero p {
  font-size: 17px;
  color: rgba(255,255,255,0.85);
  max-width: 620px;
  margin-bottom: 32px;
  line-height: 1.8;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 30px; }
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  font-size: 14px;
  color: rgba(255,255,255,0.75);
}
.hero-meta i { margin-right: 6px; }

/* ===== 快讯滚动条 ===== */
.ticker-section { padding: 20px 4% 0; }
.ticker-bar {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  overflow: hidden;
  box-shadow: var(--shadow);
}
.ticker-label {
  background: var(--primary);
  color: #fff;
  padding: 12px 22px;
  font-weight: 800;
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  flex-shrink: 0;
}
.ticker-wrapper { flex: 1; overflow: hidden; position: relative; padding: 12px 18px; }
.ticker-list {
  white-space: nowrap;
  display: inline-block;
  animation: ticker-scroll 26s linear infinite;
}
.ticker-list span { margin-right: 46px; font-size: 14px; color: var(--text-light); }
.ticker-list span i { color: var(--success); margin-right: 6px; font-size: 10px; }
@keyframes ticker-scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ===== 通用板块 ===== */
.section { padding: 68px 4%; }
.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 40px;
}
.section-title {
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 800;
  line-height: 1.3;
  position: relative;
  padding-left: 18px;
}
.section-title::before {
  content: "";
  position: absolute;
  left: 0; top: 4px; bottom: 4px;
  width: 5px;
  border-radius: 4px;
  background: linear-gradient(180deg, var(--primary), var(--accent));
}
.section-subtitle {
  color: var(--text-light);
  font-size: 15px;
  margin-top: 8px;
}
.section-more {
  color: var(--primary);
  font-weight: 700;
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: gap var(--transition);
}
.section-more:hover { gap: 10px; }

/* ===== 资讯卡片网格 ===== */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
.news-card {
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: all var(--transition);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
}
.news-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(37,99,235,0.25);
}
.news-card-image {
  position: relative;
  height: 195px;
  overflow: hidden;
  background: var(--primary-light);
}
.news-card-image img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.news-card:hover .news-card-image img { transform: scale(1.06); }
.news-card-image .tag {
  position: absolute;
  top: 14px; left: 14px;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(4px);
  color: var(--primary);
  font-weight: 700;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}
.news-card-body { padding: 22px 22px 18px; display: flex; flex-direction: column; flex: 1; }
.news-title {
  font-size: 17px;
  font-weight: 800;
  line-height: 1.5;
  margin-bottom: 10px;
  color: var(--text);
  transition: color var(--transition);
}
.news-card:hover .news-title { color: var(--primary); }
.news-excerpt {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 16px;
  flex: 1;
}
.news-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 12px;
  color: var(--text-light);
  padding-top: 14px;
  border-top: 1px solid var(--border);
}
.news-meta i { margin-right: 4px; }

/* ===== 热点专题 ===== */
.feature-section {
  background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 100%);
  color: #fff;
  border-radius: var(--radius-lg);
  margin: 0 4% 20px;
  padding: 60px 5%;
}
.feature-section .section-title { color: #fff; }
.feature-section .section-subtitle { color: rgba(255,255,255,0.7); }
.feature-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 30px; margin-top: 40px; }
.feature-main {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  min-height: 380px;
  display: flex;
  align-items: flex-end;
  cursor: pointer;
  transition: transform var(--transition);
}
.feature-main:hover { transform: scale(1.01); }
.feature-main img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.feature-main-overlay {
  position: relative;
  width: 100%;
  padding: 32px 28px;
  background: linear-gradient(0deg, rgba(0,0,0,0.75) 0%, rgba(0,0,0,0.05) 100%);
}
.feature-main-overlay h3 { font-size: 22px; margin-bottom: 8px; font-weight: 800; }
.feature-main-overlay p { font-size: 13px; color: rgba(255,255,255,0.85); margin-bottom: 12px; }
.feature-side {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.side-card {
  background: rgba(255,255,255,0.09);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  gap: 16px;
  align-items: center;
  transition: all var(--transition);
  cursor: pointer;
}
.side-card:hover { background: rgba(255,255,255,0.16); transform: translateX(4px); }
.side-card img { width: 72px; height: 72px; border-radius: var(--radius-sm); object-fit: cover; flex-shrink: 0; }
.side-card h4 { font-size: 15px; font-weight: 700; line-height: 1.5; margin-bottom: 4px; }
.side-card p { font-size: 12px; color: rgba(255,255,255,0.6); }
.side-card .tag { background: rgba(255,255,255,0.1); color: #fbbf24; }

/* ===== 数据板块 ===== */
.stats-section {
  position: relative;
  background: linear-gradient(135deg, rgba(15,23,42,0.88) 0%, rgba(30,64,175,0.65) 100%), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  padding: 70px 6%;
  border-radius: var(--radius-lg);
  margin: 20px 4% 68px;
  color: #fff;
  text-align: center;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  margin-top: 40px;
}
.stat-item {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius);
  padding: 30px 20px;
  backdrop-filter: blur(4px);
  transition: transform var(--transition);
}
.stat-item:hover { transform: translateY(-6px); background: rgba(255,255,255,0.14); }
.stat-number { font-size: clamp(28px, 4vw, 42px); font-weight: 900; color: #fbbf24; line-height: 1.2; }
.stat-label { font-size: 14px; color: rgba(255,255,255,0.85); margin-top: 8px; font-weight: 600; }
.stats-section .section-title { color: #fff; }
.stats-section .section-subtitle { color: rgba(255,255,255,0.7); }

/* ===== 快讯时间线 ===== */
.flash-section { padding: 20px 4% 68px; }
.flash-list {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.flash-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 20px 26px;
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}
.flash-item:last-child { border-bottom: none; }
.flash-item:hover { background: var(--primary-light); }
.flash-time {
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  flex-shrink: 0;
}
.flash-content { flex: 1; }
.flash-content h4 { font-size: 16px; font-weight: 700; margin-bottom: 4px; color: var(--text); }
.flash-content p { font-size: 14px; color: var(--text-light); line-height: 1.6; }
.flash-icon {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--success-light);
  color: var(--success);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  flex-shrink: 0;
}

/* ===== FAQ ===== */
.faq-section { background: var(--surface); border-top: 1px solid var(--border); padding: 68px 4%; }
.faq-grid { max-width: 860px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 16px;
  overflow: hidden;
  transition: box-shadow var(--transition);
  background: var(--surface);
}
.faq-item:hover { box-shadow: var(--shadow); }
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 20px 24px;
  cursor: pointer;
  font-weight: 700;
  font-size: 16px;
  background: transparent;
  border: none;
  width: 100%;
  text-align: left;
  color: var(--text);
  transition: background var(--transition);
}
.faq-question:hover { background: var(--primary-light); }
.faq-question i { color: var(--primary); transition: transform var(--transition); flex-shrink: 0; }
.faq-item.active .faq-question i { transform: rotate(180deg); }
.faq-answer {
  display: none;
  padding: 0 24px 20px;
  color: var(--text-light);
  font-size: 15px;
  line-height: 1.8;
}
.faq-item.active .faq-answer { display: block; }

/* ===== CTA ===== */
.cta-section {
  position: relative;
  background: linear-gradient(135deg, rgba(15,23,42,0.85) 0%, rgba(37,99,235,0.75) 100%), url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  border-radius: var(--radius-lg);
  margin: 20px 4% 68px;
  padding: 60px 6%;
  color: #fff;
  text-align: center;
}
.cta-section h2 { font-size: clamp(26px, 3vw, 38px); font-weight: 800; margin-bottom: 12px; }
.cta-section p { font-size: 16px; color: rgba(255,255,255,0.85); max-width: 560px; margin: 0 auto 30px; }
.cta-form { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.cta-input {
  border: 2px solid rgba(255,255,255,0.25);
  background: rgba(255,255,255,0.15);
  border-radius: 50px;
  padding: 14px 26px;
  width: 340px;
  color: #fff;
  outline: none;
  transition: border-color var(--transition);
}
.cta-input::placeholder { color: rgba(255,255,255,0.65); }
.cta-input:focus { border-color: #fff; }

/* ===== Footer ===== */
.footer {
  background: #0f172a;
  color: rgba(255,255,255,0.75);
  padding: 60px 4% 24px;
  margin-top: auto;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 40px;
  max-width: 1200px;
  margin: 0 auto 36px;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 14px;
}
.footer-logo i { color: #fbbf24; }
.footer-desc { font-size: 14px; line-height: 1.8; color: rgba(255,255,255,0.6); max-width: 320px; }
.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 8px;
}
.footer-col h4::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 28px;
  height: 3px;
  border-radius: 2px;
  background: #fbbf24;
}
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col a { color: rgba(255,255,255,0.6); font-size: 14px; transition: all var(--transition); }
.footer-col a:hover { color: #fff; padding-left: 4px; }
.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 22px;
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 13px;
  color: rgba(255,255,255,0.45);
}
.footer-copyright a { color: rgba(255,255,255,0.6); }
.footer-copyright a:hover { color: #fff; }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .page-hero { padding: 70px 6% 60px; }
}

@media (max-width: 768px) {
  .sidebar { display: none; }
  .mobile-header { display: flex; }
  .main-content { margin-left: 0; }
  .page-hero { padding: 56px 20px 48px; border-radius: 0 0 var(--radius) var(--radius); }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 100%; }
  .section { padding: 50px 16px; }
  .news-grid { grid-template-columns: 1fr; }
  .feature-section { padding: 40px 16px; margin: 0 12px 16px; }
  .stats-section { margin: 16px 12px 50px; padding: 50px 16px; }
  .flash-item { padding: 16px; gap: 14px; flex-direction: column; }
  .flash-time { align-self: flex-start; }
  .cta-section { margin: 16px 12px 50px; padding: 44px 16px; }
  .cta-input { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .ticker-label { display: none; }
  .ticker-wrapper { padding: 12px 14px; }
}

@media (max-width: 520px) {
  .news-grid { gap: 18px; }
  .section-title { font-size: 22px; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .stat-item { padding: 20px 12px; }
  .footer-bottom { flex-direction: column; text-align: center; justify-content: center; }
  .feature-main { min-height: 260px; }
  .side-card { flex-direction: column; text-align: center; }
  .page-hero h1 { font-size: 28px; }
}

/* ===== 滚动条样式 ===== */
::-webkit-scrollbar { width: 8px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary); }

/* ===== 可访问性 ===== */
a:focus, button:focus, input:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(37,99,235,0.4);
}

/* roulang page: article */
:root{
  --primary:#0a1a3f;
  --primary-lt:#182b5c;
  --accent:#f0a500;
  --accent-dk:#d18a00;
  --bg:#f4f6fb;
  --card:#ffffff;
  --text:#16213b;
  --muted:#64748b;
  --border:#e3e8f0;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 8px 28px rgba(15,23,42,.07);
  --shadow-lg:0 16px 46px rgba(15,23,42,.11);
  --transition:.25s ease;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'PingFang SC','Microsoft YaHei',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
ul,ol{padding:0;margin:0;list-style:none}
button,input,textarea{font-family:inherit}
h1,h2,h3,h4,h5,h6{margin:0;font-weight:700;line-height:1.3}

.app-shell{display:flex;min-height:100vh}
.sidebar{
  width:250px;
  position:fixed;
  left:0;top:0;bottom:0;
  z-index:120;
  background:linear-gradient(180deg,#0a1a3f 0%,#10264e 100%);
  display:flex;
  flex-direction:column;
  padding:26px 18px 22px;
  transition:transform .35s cubic-bezier(.4,0,.2,1);
}
.sidebar-brand{padding:0 8px 30px;border-bottom:1px solid rgba(255,255,255,.1)}
.brand-logo{
  display:flex;
  align-items:center;
  gap:12px;
  color:#fff;
  font-size:22px;
  font-weight:800;
  letter-spacing:.5px;
}
.brand-logo i{
  width:40px;height:40px;
  background:linear-gradient(135deg,var(--accent),#ffb547);
  border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  color:#0a1a3f;
  font-size:18px;
  box-shadow:0 6px 18px rgba(240,165,0,.35);
}
.sidebar-nav{margin-top:24px;display:flex;flex-direction:column;gap:6px}
.nav-item{
  display:flex;
  align-items:center;
  gap:12px;
  padding:13px 16px;
  border-radius:12px;
  color:rgba(255,255,255,.72);
  font-size:15px;
  font-weight:500;
  transition:var(--transition);
  position:relative;
}
.nav-item i{width:20px;text-align:center;font-size:16px}
.nav-item:hover{background:rgba(255,255,255,.08);color:#fff;transform:translateX(3px)}
.nav-item.active{background:linear-gradient(135deg,var(--accent),#ffb547);color:#0a1a3f;font-weight:700;box-shadow:0 8px 24px rgba(240,165,0,.28)}
.nav-item.active i{color:#0a1a3f}
.sidebar-footer{margin-top:auto;padding-top:20px}
.sidebar-card{
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.1);
  border-radius:14px;
  padding:16px;
  display:flex;
  gap:12px;
  align-items:center;
}
.sidebar-card .icon{
  width:36px;height:36px;
  background:rgba(240,165,0,.18);
  border-radius:9px;
  display:flex;align-items:center;justify-content:center;
  color:var(--accent);font-size:15px;
  flex-shrink:0;
}
.sidebar-card strong{color:#fff;font-size:14px;display:block}
.sidebar-card p{margin:2px 0 0;color:rgba(255,255,255,.55);font-size:12px;line-height:1.5}

.main-wrapper{
  flex:1;
  margin-left:250px;
  display:flex;
  flex-direction:column;
  min-width:0;
}
.topbar{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(255,255,255,.85);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(227,232,240,.7);
  display:flex;
  align-items:center;
  gap:16px;
  padding:14px 28px;
}
.menu-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:10px;
  border:1px solid var(--border);
  background:var(--card);
  color:var(--text);
  font-size:17px;
  cursor:pointer;
  align-items:center;
  justify-content:center;
  transition:var(--transition);
}
.menu-toggle:hover{border-color:var(--accent);color:var(--accent)}
.topbar-search{
  flex:1;
  max-width:460px;
  display:flex;
  background:#f2f4f9;
  border-radius:12px;
  padding:5px;
  border:1px solid transparent;
  transition:var(--transition);
}
.topbar-search:focus-within{border-color:var(--accent);background:#fff;box-shadow:0 0 0 4px rgba(240,165,0,.12)}
.topbar-search input{
  flex:1;
  border:none;
  background:transparent;
  padding:9px 14px;
  font-size:14px;
  color:var(--text);
  outline:none;
}
.topbar-search button{
  border:none;
  background:#0a1a3f;
  color:#fff;
  width:38px;height:38px;
  border-radius:9px;
  cursor:pointer;
  transition:var(--transition);
  font-size:14px;
}
.topbar-search button:hover{background:var(--accent);color:#0a1a3f}
.live-badge{
  margin-left:auto;
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(240,165,0,.1);
  border:1px solid rgba(240,165,0,.25);
  color:#b47700;
  font-size:13px;
  font-weight:600;
  padding:8px 16px;
  border-radius:30px;
  white-space:nowrap;
}
.live-badge i{font-size:9px;color:#22c55e;animation:pulse 1.8s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}

.main-content{flex:1;padding:0 0 40px}
.page-banner{
  position:relative;
  padding:68px 0 60px;
  background:var(--primary);
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  color:#fff;
  overflow:hidden;
}
.page-banner-overlay{
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(10,26,63,.92) 0%,rgba(10,26,63,.72) 60%,rgba(10,26,63,.35) 100%);
}
.page-banner-content{position:relative;z-index:2;max-width:1140px;margin:0 auto;padding:0 28px}
.banner-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.2);
  border-radius:30px;
  padding:7px 18px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.5px;
  color:#ffd993;
  margin-bottom:18px;
}
.page-banner h2{font-size:34px;font-weight:800;letter-spacing:.5px;margin-bottom:8px}
.page-banner p{color:rgba(255,255,255,.72);font-size:15px;max-width:520px}

.container{max-width:1140px;margin:0 auto;padding:0 28px}

.article-section{padding:36px 0 10px}
.article-container{max-width:900px;margin:0 auto}
.crumb{
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--muted);
  margin-bottom:22px;
}
.crumb a{color:var(--muted);transition:var(--transition)}
.crumb a:hover{color:var(--accent-dk)}
.crumb .fa-chevron-right{font-size:10px;color:#c1c9d8}
.crumb span{color:var(--text);font-weight:500}

.article-card{
  background:var(--card);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:42px 46px 38px;
  border:1px solid rgba(226,232,240,.65);
  position:relative;
  overflow:hidden;
}
.article-card::before{
  content:'';
  position:absolute;
  top:0;left:0;right:0;
  height:4px;
  background:linear-gradient(90deg,var(--accent),#ffb547,var(--accent),#ffb547);
  background-size:200% 100%;
  animation:slidebar 8s linear infinite;
}
@keyframes slidebar{0%{background-position:0% 0}100%{background-position:200% 0}}
.article-title{font-size:30px;font-weight:800;line-height:1.45;margin-bottom:18px;color:var(--primary)}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  gap:18px;
  padding-bottom:22px;
  border-bottom:1px solid var(--border);
  margin-bottom:24px;
}
.meta-item{display:inline-flex;align-items:center;gap:7px;color:var(--muted);font-size:14px}
.meta-item i{color:var(--accent-dk);font-size:13px}
.article-cover{
  border-radius:14px;
  overflow:hidden;
  margin-bottom:28px;
  position:relative;
  box-shadow:0 10px 32px rgba(10,26,63,.12);
}
.article-cover img{width:100%;height:auto;object-fit:cover}
.article-cover::after{
  content:'开云电子';
  position:absolute;
  right:14px;bottom:12px;
  background:rgba(10,26,63,.65);
  color:#fff;
  font-size:12px;
  padding:5px 14px;
  border-radius:20px;
  letter-spacing:1px;
  backdrop-filter:blur(4px);
}

.article-body{font-size:16.5px;line-height:2;color:#2d3648}
.article-body h2{
  font-size:24px;
  color:var(--primary);
  margin:36px 0 16px;
  padding-left:14px;
  border-left:4px solid var(--accent);
  border-radius:2px;
}
.article-body h3{
  font-size:19px;
  color:var(--primary);
  margin:28px 0 12px;
}
.article-body p{margin:0 0 1.4em}
.article-body ul,.article-body ol{margin:0 0 1.5em;padding-left:2em}
.article-body ul li{list-style:disc;margin-bottom:8px}
.article-body ol li{list-style:decimal;margin-bottom:8px}
.article-body img{border-radius:12px;margin:24px 0;box-shadow:0 12px 34px rgba(15,23,42,.08)}
.article-body a{color:var(--accent-dk);border-bottom:2px solid rgba(240,165,0,.35);font-weight:500;transition:var(--transition)}
.article-body a:hover{border-color:var(--accent);color:var(--accent-dk)}
.article-body blockquote{
  background:#f8fafc;
  border-left:4px solid var(--accent);
  border-radius:8px;
  padding:20px 24px;
  margin:22px 0;
  color:#52637a;
}
.article-body strong{color:var(--primary)}

.article-tags{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  margin-top:32px;
  padding-top:24px;
  border-top:1px solid var(--border);
}
.tag-label{font-size:14px;font-weight:600;color:var(--muted);margin-right:4px}
.tag-chip{
  background:#f1f4fa;
  border:1px solid #e3e8f0;
  border-radius:30px;
  padding:6px 15px;
  font-size:13px;
  color:var(--primary);
  font-weight:500;
  transition:var(--transition);
}
.tag-chip:hover{background:var(--accent);border-color:var(--accent);color:#fff;transform:translateY(-2px)}
.article-share{
  display:flex;
  align-items:center;
  gap:10px;
  margin-top:22px;
}
.article-share span{font-size:14px;color:var(--muted);font-weight:500}
.share-btn{
  width:38px;height:38px;
  border-radius:10px;
  background:#f1f4fa;
  border:1px solid var(--border);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--primary);
  transition:var(--transition);
  font-size:15px;
}
.share-btn:hover{
  background:var(--primary);
  color:#fff;
  border-color:var(--primary);
  transform:translateY(-2px);
  box-shadow:0 6px 16px rgba(10,26,63,.2);
}

.not-found-section{padding:70px 0}
.not-found-card{
  max-width:560px;
  margin:0 auto;
  text-align:center;
  background:var(--card);
  border-radius:20px;
  box-shadow:var(--shadow-lg);
  padding:52px 40px;
  border:1px solid var(--border);
}
.not-found-card i{font-size:56px;color:var(--accent);margin-bottom:20px;display:block}
.not-found-card h1{font-size:26px;color:var(--primary);margin-bottom:10px}
.not-found-card p{color:var(--muted);font-size:15px;margin-bottom:28px}

.btn-primary,.btn-outline-light{
  display:inline-flex;
  align-items:center;
  gap:9px;
  padding:13px 28px;
  border-radius:12px;
  font-size:15px;
  font-weight:600;
  transition:var(--transition);
  border:2px solid transparent;
  cursor:pointer;
  text-align:center;
}
.btn-primary{
  background:linear-gradient(135deg,var(--accent),#ffb547);
  color:#0a1a3f;
  box-shadow:0 8px 22px rgba(240,165,0,.28);
}
.btn-primary:hover{
  transform:translateY(-2px);
  box-shadow:0 14px 30px rgba(240,165,0,.38);
}
.btn-outline-light{
  background:transparent;
  color:#fff;
  border-color:rgba(255,255,255,.5);
}
.btn-outline-light:hover{background:rgba(255,255,255,.12);border-color:#fff;transform:translateY(-2px)}

.related-section{padding:66px 0 20px}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:34px;
  flex-wrap:wrap;
}
.section-tag{
  display:inline-block;
  font-size:12px;
  font-weight:700;
  letter-spacing:1.5px;
  color:var(--accent-dk);
  background:rgba(240,165,0,.1);
  border-radius:20px;
  padding:5px 14px;
  margin-bottom:9px;
}
.section-title{font-size:28px;font-weight:800;color:var(--primary);line-height:1.3}
.section-link{
  color:var(--primary);
  font-size:14px;
  font-weight:600;
  display:inline-flex;
  align-items:center;
  gap:6px;
  transition:var(--transition);
}
.section-link:hover{color:var(--accent-dk);gap:12px}
.related-card{
  display:flex;
  flex-direction:column;
  background:var(--card);
  border-radius:14px;
  border:1px solid rgba(226,232,240,.7);
  overflow:hidden;
  transition:var(--transition);
  box-shadow:0 4px 16px rgba(15,23,42,.04);
}
.related-card:hover{
  transform:translateY(-5px);
  box-shadow:var(--shadow-lg);
  border-color:rgba(240,165,0,.35);
}
.related-card-img{position:relative;height:168px;overflow:hidden;background:#eef1f7}
.related-card-img img{width:100%;height:100%;object-fit:cover;transition:var(--transition)}
.related-card:hover .related-card-img img{transform:scale(1.06)}
.related-badge{
  position:absolute;
  left:12px;top:12px;
  background:rgba(10,26,63,.85);
  color:#fff;
  font-size:12px;
  font-weight:600;
  padding:5px 12px;
  border-radius:20px;
  backdrop-filter:blur(4px);
}
.related-card-body{padding:18px 18px 16px;flex:1;display:flex;flex-direction:column}
.related-card-body h3{
  font-size:15px;
  font-weight:600;
  line-height:1.55;
  color:var(--primary);
  margin-bottom:8px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.related-card-body p{
  color:var(--muted);
  font-size:13px;
  line-height:1.7;
  flex:1;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-bottom:12px;
}
.related-date{font-size:12px;color:#a0aabd;display:inline-flex;align-items:center;gap:5px}
.empty-state{
  grid-column:1/-1;
  background:var(--card);
  border:2px dashed var(--border);
  border-radius:14px;
  padding:38px;
  text-align:center;
  color:var(--muted);
  font-size:15px;
}

.category-section{padding:50px 0}
.category-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.category-card{
  position:relative;
  border-radius:18px;
  overflow:hidden;
  background:var(--primary);
  color:#fff;
  min-height:210px;
  display:flex;
  align-items:flex-end;
  transition:var(--transition);
  box-shadow:0 12px 32px rgba(10,26,63,.14);
}
.category-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.4;transition:var(--transition)}
.category-card:hover img{opacity:.3;transform:scale(1.06)}
.category-card-body{
  position:relative;
  z-index:2;
  padding:28px;
  width:100%;
  background:linear-gradient(0deg,rgba(10,26,63,.92) 15%,rgba(10,26,63,.2) 100%);
}
.category-card-body h3{font-size:20px;font-weight:700;margin-bottom:6px;display:flex;align-items:center;gap:10px}
.category-card-body h3 i{color:var(--accent);font-size:18px}
.category-card-body p{color:rgba(255,255,255,.78);font-size:14px;margin-bottom:14px}
.category-card-link{
  color:var(--accent);
  font-size:14px;
  font-weight:600;
  display:inline-flex;
  align-items:center;
  gap:6px;
  transition:var(--transition);
}
.category-card:hover .category-card-link{gap:12px;color:#ffb547}

.faq-section{padding:56px 0;background:linear-gradient(180deg,#eef1f7 0%,#f4f6fb 100%)}
.faq-container{max-width:860px;margin:0 auto}
.faq-list{margin-top:34px}
.faq-item{
  background:var(--card);
  border-radius:14px;
  border:1px solid var(--border);
  margin-bottom:14px;
  overflow:hidden;
  transition:var(--transition);
  box-shadow:0 3px 12px rgba(15,23,42,.04);
}
.faq-item.open{border-color:rgba(240,165,0,.4);box-shadow:var(--shadow)}
.faq-question{
  width:100%;
  border:none;
  background:transparent;
  padding:20px 24px;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--primary);
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  transition:var(--transition);
}
.faq-question:hover{background:#f8fafc}
.faq-question i{
  color:var(--accent);
  transition:transform .35s;
  flex-shrink:0;
  font-size:13px;
}
.faq-item.open .faq-question i{transform:rotate(180deg)}
.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height .35s ease;
  padding:0 24px;
}
.faq-item.open .faq-answer{padding:2px 24px 22px;max-height:200px}
.faq-answer p{margin:0;color:var(--muted);font-size:14.5px;line-height:1.9}

.cta-section{
  position:relative;
  padding:76px 0;
  background-image:url('/assets/images/backpic/back-3.png');
  background-size:cover;
  background-position:center;
  background-attachment:fixed;
  color:#fff;
  text-align:center;
}
.cta-overlay{
  position:absolute;
  inset:0;
  background:linear-gradient(135deg,rgba(10,26,63,.92),rgba(15,37,87,.88));
}
.cta-content{position:relative;z-index:2}
.cta-content h2{font-size:32px;font-weight:800;margin-bottom:12px}
.cta-content p{color:rgba(255,255,255,.7);max-width:520px;margin:0 auto 30px;font-size:15px}
.cta-buttons{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

.footer{
  background:#08132f;
  color:#9aa7c4;
  padding:60px 0 0;
  border-top:4px solid var(--accent);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr;
  gap:48px;
  padding-bottom:42px;
}
.footer-logo{
  display:flex;
  align-items:center;
  gap:11px;
  color:#fff;
  font-size:20px;
  font-weight:800;
  margin-bottom:14px;
}
.footer-logo i{color:var(--accent);font-size:18px}
.footer-desc{color:#8a97b5;font-size:14px;line-height:1.85;max-width:300px;margin:0}
.footer-col h4{
  color:#fff;
  font-size:16px;
  font-weight:700;
  margin-bottom:16px;
  position:relative;
  padding-bottom:8px;
}
.footer-col h4::after{
  content:'';
  position:absolute;
  left:0;bottom:0;
  width:28px;height:3px;
  border-radius:3px;
  background:var(--accent);
}
.footer-col li{margin-bottom:11px}
.footer-col a{
  color:#8a97b5;
  font-size:14px;
  transition:var(--transition);
}
.footer-col a:hover{color:var(--accent);padding-left:5px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:22px 0 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  flex-wrap:wrap;
  font-size:13px;
  color:#6b7a97;
}
.footer-bottom a{color:#8a97b5;transition:var(--transition)}
.footer-bottom a:hover{color:var(--accent)}

.sidebar-backdrop{
  position:fixed;
  inset:0;
  background:rgba(8,19,47,.55);
  z-index:110;
  opacity:0;
  visibility:hidden;
  transition:var(--transition);
  backdrop-filter:blur(2px);
}
.sidebar-backdrop.show{opacity:1;visibility:visible}
.reading-progress{
  position:fixed;
  top:0;left:0;
  height:3px;
  background:linear-gradient(90deg,var(--accent),#ffb547);
  z-index:200;
  width:0;
  transition:width .1s linear;
}

@media(max-width:1024px){
  .related-card-img{height:145px}
  .article-card{padding:36px 30px}
  .page-banner h2{font-size:28px}
}
@media(max-width:920px){
  .sidebar{
    transform:translateX(-100%);
    width:270px;
    box-shadow:0 0 60px rgba(0,0,0,.3);
  }
  .sidebar.open{transform:translateX(0)}
  .main-wrapper{margin-left:0}
  .menu-toggle{display:flex}
  .topbar{padding:12px 18px}
  .topbar-search{max-width:none}
  .category-grid{grid-template-columns:1fr;gap:20px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .cta-section{background-attachment:scroll}
}
@media(max-width:640px){
  body{font-size:15px}
  .container{padding:0 18px}
  .page-banner{padding:52px 0 44px}
  .page-banner h2{font-size:23px}
  .page-banner p{font-size:14px}
  .article-card{padding:26px 20px 28px;border-radius:12px}
  .article-title{font-size:22px}
  .article-meta{gap:12px;flex-direction:column;gap:8px}
  .meta-item{font-size:13px}
  .article-body{font-size:15.5px;line-height:1.9}
  .article-body h2{font-size:20px}
  .article-body h3{font-size:17px}
  .section-title{font-size:22px}
  .section-head{margin-bottom:24px}
  .related-card-img{height:128px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;text-align:center;justify-content:center}
  .live-badge{display:none}
  .cta-buttons .btn-primary,.cta-buttons .btn-outline-light{width:100%;justify-content:center}
  .not-found-card{padding:34px 20px}
}
@media(max-width:520px){
  .topbar-search input{font-size:13px;padding:8px 10px}
  .article-cover{margin-bottom:20px}
  .article-tags{gap:6px}
  .tag-chip{font-size:12px;padding:5px 11px}
  .article-share{flex-wrap:wrap}
}

/* roulang page: category2 */
:root {
  --primary: #1460f0;
  --primary-light: #3b82f6;
  --primary-dark: #0e4fd0;
  --accent: #ff6a00;
  --accent-light: #ff9f43;
  --dark: #0b1220;
  --dark-2: #111c33;
  --bg: #f5f8fc;
  --white: #ffffff;
  --text: #10243e;
  --text-muted: #64748b;
  --border: #e8eef5;
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 4px 14px rgba(16,36,62,.06);
  --shadow: 0 12px 32px rgba(16,36,62,.10);
  --shadow-lg: 0 24px 60px rgba(16,36,62,.16);
  --transition: all .25s ease;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
a {
  text-decoration: none;
  color: inherit;
}
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
img {
  max-width: 100%;
  display: block;
}
ul, ol {
  list-style: none;
}
button, input, select, textarea {
  font-family: inherit;
}
.row {
  display: flex;
  flex-wrap: wrap;
}
.row .columns {
  float: none;
}
.content-container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 28px;
}
.content-container .row {
  margin: 0 -14px;
  width: auto;
}
.content-container .columns {
  padding: 0 14px;
}
.section-head {
  margin-bottom: 44px;
}
.section-head.center {
  text-align: center;
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}
.section-head h2 {
  font-size: 32px;
  font-weight: 800;
  color: var(--text);
  margin-top: 10px;
  line-height: 1.3;
  letter-spacing: -0.5px;
}
.section-head p {
  color: var(--text-muted);
  margin-top: 12px;
  font-size: 16px;
}
.section-head.light h2 {
  color: #fff;
}
.section-head.light p {
  color: rgba(255,255,255,.75);
}
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 16px;
  border-radius: 999px;
  background: rgba(20,96,240,.10);
  color: var(--primary);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .3px;
}
.section-head.light .section-tag {
  background: rgba(255,255,255,.12);
  color: #ffd9a8;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 15px;
  line-height: 1;
  transition: var(--transition);
  border: 2px solid transparent;
  cursor: pointer;
  text-align: center;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 10px 24px rgba(20,96,240,.30);
}
.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(20,96,240,.35);
}
.btn-ghost-light {
  background: rgba(255,255,255,.08);
  border-color: rgba(255,255,255,.25);
  color: #fff;
  backdrop-filter: blur(6px);
}
.btn-ghost-light:hover {
  background: rgba(255,255,255,.18);
  border-color: rgba(255,255,255,.5);
  transform: translateY(-2px);
}
.btn-outline {
  background: transparent;
  border-color: var(--primary);
  color: var(--primary);
}
.btn-outline:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-2px);
}
.btn-light {
  background: #fff;
  color: var(--primary-dark);
}
.btn-light:hover {
  background: var(--bg);
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(0,0,0,.18);
}
.btn-outline-light {
  background: transparent;
  border-color: rgba(255,255,255,.5);
  color: #fff;
}
.btn-outline-light:hover {
  background: #fff;
  color: var(--primary-dark);
  transform: translateY(-2px);
}
.badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(20,96,240,.12);
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
}
.badge-float {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  background: rgba(10,20,45,.72);
  color: #fff;
  backdrop-filter: blur(4px);
}
.layout {
  min-height: 100vh;
}
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 280px;
  background: linear-gradient(180deg,#0a101f 0%,#0d1730 100%);
  z-index: 50;
  display: flex;
  flex-direction: column;
  transition: transform .35s ease;
  box-shadow: 6px 0 30px rgba(0,0,0,.12);
}
.sidebar-inner {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 28px 20px;
  overflow-y: auto;
}
.sidebar-logo {
  font-size: 26px;
  font-weight: 900;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 12px;
}
.sidebar-logo i {
  color: var(--accent);
  font-size: 22px;
}
.sidebar-slogan {
  color: #64748b;
  font-size: 13px;
  padding: 0 12px;
  margin-top: 8px;
  letter-spacing: 1px;
}
.sidebar-nav {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  border-radius: 12px;
  color: #9aa8c5;
  font-weight: 600;
  font-size: 15px;
  transition: var(--transition);
  border: 1px solid transparent;
}
.nav-item i {
  width: 20px;
  text-align: center;
  font-size: 16px;
}
.nav-item:hover {
  background: rgba(255,255,255,.06);
  color: #fff;
  transform: translateX(4px);
}
.nav-item.active {
  background: linear-gradient(135deg,var(--primary),var(--primary-light));
  color: #fff;
  box-shadow: 0 8px 22px rgba(20,96,240,.38);
}
.sidebar-card {
  margin-top: auto;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 16px;
  padding: 20px 18px;
  margin-bottom: 10px;
}
.sidebar-card i {
  color: var(--accent);
  font-size: 20px;
}
.sidebar-card p {
  color: #8fa0bd;
  font-size: 13px;
  line-height: 1.7;
  margin: 10px 0 14px;
}
.sidebar-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent);
  color: #fff;
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  transition: var(--transition);
}
.sidebar-cta:hover {
  background: var(--accent-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(255,106,0,.30);
}
.sidebar-close {
  display: none;
  position: absolute;
  top: 14px;
  right: 14px;
  background: rgba(255,255,255,.1);
  border: none;
  color: #fff;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}
.sidebar-overlay {
  position: fixed;
  inset: 0;
  background: rgba(5,10,22,.7);
  z-index: 45;
  display: none;
  backdrop-filter: blur(3px);
}
.main-wrap {
  margin-left: 280px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
main {
  flex: 1;
}
.mobile-header {
  display: none;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 40;
}
.mobile-menu-btn {
  background: #fff;
  border: 1px solid var(--border);
  width: 40px;
  height: 40px;
  border-radius: 10px;
  font-size: 16px;
  color: var(--text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.mobile-logo {
  font-size: 20px;
  font-weight: 800;
  color: var(--text);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.mobile-logo i {
  color: var(--accent);
}
.mobile-cta {
  padding: 8px 16px;
  background: var(--primary);
  color: #fff;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
}
.page-hero {
  position: relative;
  background-size: cover;
  background-position: center;
  padding: 120px 0 110px;
  overflow: hidden;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, rgba(5,10,22,.93) 15%, rgba(10,22,44,.72) 55%, rgba(20,96,240,.32));
}
.hero-content {
  position: relative;
  z-index: 2;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: 999px;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.2);
  color: #ffd9a8;
  font-size: 14px;
  font-weight: 600;
  backdrop-filter: blur(6px);
}
.page-hero h1 {
  font-size: 52px;
  font-weight: 900;
  color: #fff;
  margin-top: 20px;
  line-height: 1.15;
  letter-spacing: -1px;
}
.page-hero p {
  color: rgba(255,255,255,.85);
  font-size: 18px;
  max-width: 620px;
  margin-top: 18px;
  line-height: 1.8;
}
.hero-actions {
  display: flex;
  gap: 16px;
  margin-top: 36px;
  flex-wrap: wrap;
}
.stat-bar {
  position: relative;
  z-index: 3;
  padding: 0 16px;
  margin-top: -48px;
  background: transparent;
}
.stat-grid {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 24px 28px;
  border: 1px solid var(--border);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 16px 10px;
  border-radius: var(--radius);
  background: var(--bg);
  border: 1px solid var(--border);
  transition: var(--transition);
}
.stat-item:hover {
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}
.stat-item i {
  color: var(--primary);
  font-size: 20px;
  margin-bottom: 8px;
}
.stat-item strong {
  font-size: 30px;
  font-weight: 900;
  color: var(--text);
  line-height: 1.2;
}
.stat-item span {
  color: var(--text-muted);
  font-size: 13px;
  margin-top: 6px;
}
.category-intro {
  padding: 90px 0;
  background: var(--white);
}
.intro-media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.intro-media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}
.media-badge {
  position: absolute;
  bottom: 16px;
  left: 16px;
  background: rgba(10,20,42,.8);
  color: #fff;
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
  backdrop-filter: blur(6px);
}
.intro-text {
  padding-left: 28px;
}
.intro-text h2 {
  font-size: 32px;
  font-weight: 800;
  margin-top: 14px;
  line-height: 1.3;
}
.intro-text p {
  color: var(--text-muted);
  margin-top: 16px;
  font-size: 16px;
  line-height: 1.9;
}
.check-list {
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.check-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: var(--text);
  font-weight: 500;
}
.check-list li i {
  color: var(--accent);
  margin-top: 5px;
}
.intro-text .btn {
  margin-top: 28px;
}
.guide-cards {
  padding: 90px 0;
  background: var(--bg);
}
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.guide-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: all .35s ease;
  box-shadow: var(--shadow-sm);
}
.guide-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(20,96,240,.20);
}
.card-media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
}
.card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.guide-card:hover .card-media img {
  transform: scale(1.06);
}
.card-body {
  padding: 22px;
}
.card-body h3 {
  font-size: 19px;
  font-weight: 800;
  margin-bottom: 10px;
  color: var(--text);
}
.card-body p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.75;
}
.card-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}
.card-meta {
  color: var(--text-muted);
  font-size: 13px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.card-link {
  color: var(--primary);
  font-weight: 700;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap .25s;
}
.card-link:hover {
  gap: 10px;
  color: var(--primary-dark);
}
.buy-process {
  position: relative;
  background-size: cover;
  background-position: center;
  padding: 100px 0;
}
.process-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(6,12,26,.94), rgba(12,25,55,.85));
}
.process-content {
  position: relative;
  z-index: 2;
}
.process-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  margin-top: 20px;
}
.process-step {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-lg);
  padding: 28px 22px;
  text-align: center;
  backdrop-filter: blur(8px);
  transition: var(--transition);
}
.process-step:hover {
  background: rgba(255,255,255,.12);
  transform: translateY(-4px);
}
.step-num {
  font-size: 34px;
  font-weight: 900;
  color: var(--accent);
  line-height: 1;
}
.process-step h3 {
  color: #fff;
  font-size: 18px;
  margin-top: 16px;
}
.process-step p {
  color: rgba(255,255,255,.7);
  font-size: 13px;
  line-height: 1.7;
  margin-top: 10px;
}
.ranking {
  background: var(--white);
  padding: 90px 0;
}
.ranking-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 920px;
  margin: 0 auto;
}
.ranking-item {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px 24px;
  background: var(--bg);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: var(--transition);
}
.ranking-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
  border-color: rgba(20,96,240,.20);
}
.rank-num {
  font-size: 28px;
  font-weight: 900;
  color: var(--primary);
  opacity: .8;
  width: 48px;
  text-align: center;
  flex-shrink: 0;
}
.rank-info {
  flex: 1;
}
.rank-info h3 {
  font-size: 17px;
  font-weight: 700;
}
.rank-info p {
  color: var(--text-muted);
  font-size: 14px;
  margin-top: 4px;
}
.rank-meta {
  color: var(--accent);
  font-size: 14px;
  white-space: nowrap;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.faq {
  background: var(--bg);
  padding: 90px 0;
}
.faq-grid {
  max-width: 860px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: var(--transition);
}
.faq-item:hover {
  border-color: rgba(20,96,240,.25);
  box-shadow: var(--shadow-sm);
}
.faq-item h3 {
  font-size: 16px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
}
.faq-item h3 i {
  color: var(--primary);
}
.faq-item p {
  color: var(--text-muted);
  margin-top: 12px;
  font-size: 14px;
  line-height: 1.8;
}
.cta-section {
  position: relative;
  background-size: cover;
  background-position: center;
  padding: 100px 0;
}
.cta-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(6,12,26,.92), rgba(20,96,240,.55));
}
.cta-box {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
  color: #fff;
}
.cta-box h2 {
  font-size: 34px;
  font-weight: 800;
  color: #fff;
}
.cta-box p {
  color: rgba(255,255,255,.8);
  margin-top: 14px;
  font-size: 17px;
}
.cta-actions {
  margin-top: 30px;
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}
.footer {
  background: var(--dark);
  color: #7b8ba6;
  padding: 64px 0 0;
  position: relative;
  overflow: hidden;
}
.footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(20,96,240,.5), transparent);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}
.footer-logo {
  font-size: 24px;
  font-weight: 800;
  color: #fff;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.footer-logo i {
  color: var(--accent);
}
.footer-desc {
  color: #7b8ba6;
  line-height: 1.8;
  margin-top: 16px;
  max-width: 360px;
  font-size: 15px;
}
.footer-col h4 {
  color: #fff;
  font-size: 16px;
  margin-bottom: 18px;
  font-weight: 700;
}
.footer-col ul li {
  margin-bottom: 12px;
}
.footer-col ul a {
  color: #7b8ba6;
  transition: var(--transition);
}
.footer-col ul a:hover {
  color: #fff;
  padding-left: 4px;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  color: #5b6b85;
}
.footer-copyright a {
  color: #8ea0bd;
  transition: var(--transition);
}
.footer-copyright a:hover {
  color: #fff;
}
@media (max-width: 1100px) {
  .cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .process-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-hero h1 {
    font-size: 40px;
  }
}
@media (max-width: 1024px) {
  .sidebar {
    transform: translateX(-100%);
    width: 300px;
  }
  .sidebar.open {
    transform: translateX(0);
  }
  .sidebar-close {
    display: flex;
  }
  .main-wrap {
    margin-left: 0;
  }
  .mobile-header {
    display: flex;
  }
  .sidebar-overlay {
    display: none;
  }
  .stat-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
  }
  .intro-text {
    padding-left: 0;
    margin-top: 28px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 768px) {
  .page-hero {
    padding: 90px 0 70px;
  }
  .page-hero h1 {
    font-size: 32px;
  }
  .page-hero p {
    font-size: 16px;
  }
  .stat-bar {
    margin-top: -30px;
  }
  .stat-grid {
    grid-template-columns: 1fr 1fr;
    padding: 18px;
  }
  .cards-grid {
    grid-template-columns: 1fr;
  }
  .process-grid {
    grid-template-columns: 1fr;
  }
  .faq-grid {
    grid-template-columns: 1fr;
  }
  .category-intro {
    padding: 60px 0;
  }
  .guide-cards {
    padding: 60px 0;
  }
  .buy-process {
    padding: 70px 0;
  }
  .ranking {
    padding: 60px 0;
  }
  .faq {
    padding: 60px 0;
  }
  .cta-section {
    padding: 70px 0;
  }
  .section-head h2 {
    font-size: 26px;
  }
  .cta-box h2 {
    font-size: 28px;
  }
  .ranking-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
  .rank-meta {
    margin-left: auto;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer {
    padding-top: 44px;
  }
}
@media (max-width: 520px) {
  .content-container {
    padding: 0 18px;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .cta-actions .btn {
    width: 100%;
  }
  .stat-item strong {
    font-size: 24px;
  }
  .intro-media img {
    aspect-ratio: 4 / 3;
  }
  .page-hero h1 {
    font-size: 28px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}