/* roulang page: index */
/* ===== 设计变量 ===== */
:root {
  --primary: #16C46A;
  --primary-hover: #0FA555;
  --accent: #0FD9CD;
  --bg: #F7F8F5;
  --dark: #0B1410;
  --heading: #111A14;
  --body: #2A352E;
  --muted: #64736A;
  --disable: #9AA7A0;
  --card: #FFFFFF;
  --border: #E4E9E4;
  --warning: #F5A623;
  --error: #E8534A;
  --r-lg: 20px;
  --r-md: 14px;
  --r-btn: 12px;
  --r-pill: 999px;
  --r-badge: 8px;
  --shadow-sm: 0 2px 8px rgba(11,20,16,0.04);
  --shadow-md: 0 8px 24px rgba(11,20,16,0.10);
  --shadow-lg: 0 16px 48px rgba(11,20,16,0.25);
  --container: 1200px;
  --spacing: clamp(64px, 10vw, 112px);
}

/* ===== Reset ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  background: var(--bg);
  color: var(--body);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}
button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
}
input {
  font-family: inherit;
  font-size: 15px;
}
ul, ol {
  list-style: none;
}
h1, h2, h3, h4, h5 {
  color: var(--heading);
  line-height: 1.3;
}

/* ===== 容器 ===== */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding-left: clamp(16px, 4vw, 40px);
  padding-right: clamp(16px, 4vw, 40px);
}

/* ===== 按钮 ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  color: #fff;
  font-weight: 600;
  font-size: 15px;
  padding: 14px 28px;
  border-radius: var(--r-btn);
  box-shadow: 0 4px 16px rgba(22,196,106,0.3);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  line-height: 1.2;
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(22,196,106,0.4);
}
.btn-primary:active {
  transform: translateY(1px);
  box-shadow: 0 2px 8px rgba(22,196,106,0.3);
}
.btn-primary:focus-visible,
.btn-secondary:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: #fff;
  color: var(--primary);
  font-weight: 600;
  font-size: 15px;
  padding: 14px 28px;
  border-radius: var(--r-btn);
  border: 1.5px solid var(--primary);
  transition: background 0.2s ease, transform 0.2s ease;
}
.btn-secondary:hover {
  background: rgba(22,196,106,0.05);
  transform: translateY(-1px);
}
.btn-secondary:active {
  transform: translateY(1px);
}

/* ===== 导航 ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: transparent;
  transition: background 0.3s ease, backdrop-filter 0.3s ease, box-shadow 0.3s ease;
}
.header.scrolled {
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 2px 12px rgba(11,20,16,0.06);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.nav-logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--dark);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-weight: 800;
  font-size: 15px;
  letter-spacing: -0.5px;
  box-shadow: 0 4px 12px rgba(11,20,16,0.2);
}
.nav-logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}
.nav-logo-text strong {
  font-size: 17px;
  font-weight: 700;
  color: var(--heading);
  letter-spacing: -0.02em;
}
.nav-logo-text span {
  font-size: 11px;
  color: var(--muted);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  margin: 0 auto;
}
.nav-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--body);
  padding: 6px 0;
  position: relative;
  transition: color 0.2s ease;
}
.nav-link:hover {
  color: var(--primary);
}
.nav-link.active {
  color: var(--primary);
  font-weight: 600;
}
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: var(--primary);
}
.nav-tools {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}
.nav-search {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #F1F3F0;
  border-radius: var(--r-pill);
  padding: 8px 16px;
  width: 220px;
  cursor: pointer;
  transition: background 0.2s ease, box-shadow 0.2s ease;
}
.nav-search:hover {
  background: #E9ECE8;
}
.nav-search svg {
  width: 16px;
  height: 16px;
  color: var(--muted);
  flex-shrink: 0;
}
.nav-search span {
  font-size: 13px;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.nav-search kbd {
  font-size: 11px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2px 6px;
  color: var(--muted);
  margin-left: auto;
  font-family: inherit;
}
.nav-bell {
  position: relative;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #F1F3F0;
  transition: background 0.2s ease;
}
.nav-bell:hover {
  background: #E9ECE8;
}
.nav-bell svg {
  width: 18px;
  height: 18px;
  color: var(--body);
}
.nav-bell .dot {
  position: absolute;
  top: 8px;
  right: 10px;
  width: 8px;
  height: 8px;
  background: var(--error);
  border-radius: 50%;
  border: 2px solid #fff;
}
.nav-cta {
  font-size: 14px;
  font-weight: 600;
  padding: 10px 22px;
}
.nav-burger {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: #F1F3F0;
  align-items: center;
  justify-content: center;
}
.nav-burger span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--body);
  position: relative;
  transition: background 0.2s ease;
}
.nav-burger span::before,
.nav-burger span::after {
  content: '';
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background: var(--body);
  transition: transform 0.2s ease;
}
.nav-burger span::before {
  top: -6px;
}
.nav-burger span::after {
  top: 6px;
}
.nav-burger:hover {
  background: #E9ECE8;
}
.nav-burger.open span {
  background: transparent;
}
.nav-burger.open span::before {
  transform: rotate(45deg);
  top: 0;
}
.nav-burger.open span::after {
  transform: rotate(-45deg);
  top: 0;
}
.nav-drawer {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  bottom: 0;
  background: #fff;
  padding: 32px clamp(16px, 4vw, 40px);
  z-index: 999;
  overflow-y: auto;
  box-shadow: 0 8px 32px rgba(11,20,16,0.1);
}
.nav-drawer.open {
  display: block;
}
.nav-drawer .drawer-search {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #F1F3F0;
  border-radius: 12px;
  padding: 14px 18px;
  margin-bottom: 24px;
}
.nav-drawer .drawer-search input {
  border: none;
  background: transparent;
  flex: 1;
  font-size: 15px;
  outline: none;
}
.nav-drawer .drawer-links {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.nav-drawer .drawer-link {
  font-size: 18px;
  font-weight: 600;
  color: var(--heading);
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
}
.nav-drawer .drawer-link:hover {
  color: var(--primary);
}
.nav-drawer .drawer-link.active {
  color: var(--primary);
}
.nav-drawer .drawer-cta {
  margin-top: 24px;
  width: 100%;
}

/* ===== Hero ===== */
.hero {
  background: var(--dark);
  padding: 160px 0 80px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -80px;
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, rgba(22,196,106,0.12) 0%, transparent 70%);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  opacity: 0.15;
  pointer-events: none;
}
.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
}
.hero-text .hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(22,196,106,0.15);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: var(--r-pill);
  margin-bottom: 20px;
}
.hero-text .hero-badge .pulse {
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}
.hero-text h1 {
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #fff;
  line-height: 1.15;
  margin-bottom: 20px;
}
.hero-text h1 .highlight {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-text p {
  font-size: 17px;
  color: rgba(255,255,255,0.75);
  line-height: 1.7;
  margin-bottom: 32px;
  max-width: 480px;
}
.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}
.hero-cta .btn-secondary {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.3);
  color: #fff;
}
.hero-cta .btn-secondary:hover {
  background: rgba(255,255,255,0.15);
}
.hero-trust {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}
.hero-trust li {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: rgba(255,255,255,0.6);
}
.hero-trust li::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--primary);
  border-radius: 50%;
  flex-shrink: 0;
}

/* 数据看板 */
.hero-dashboard {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--r-lg);
  padding: 28px;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.dashboard-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}
.dashboard-head h3 {
  font-size: 15px;
  font-weight: 600;
  color: rgba(255,255,255,0.9);
}
.dashboard-live {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 700;
  color: var(--primary);
  background: rgba(22,196,106,0.15);
  padding: 4px 10px;
  border-radius: var(--r-badge);
  letter-spacing: 0.05em;
}
.dashboard-live .dot {
  width: 6px;
  height: 6px;
  background: var(--primary);
  border-radius: 50%;
  animation: pulse 1.5s infinite;
}
.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: rgba(255,255,255,0.08);
  border-radius: 12px;
  overflow: hidden;
}
.dashboard-cell {
  background: rgba(255,255,255,0.04);
  padding: 20px;
  transition: background 0.2s ease;
}
.dashboard-cell:hover {
  background: rgba(255,255,255,0.08);
}
.dashboard-cell .label {
  font-size: 12px;
  color: rgba(255,255,255,0.5);
  margin-bottom: 6px;
}
.dashboard-cell .value {
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.dashboard-cell .value .num {
  font-size: 24px;
  font-weight: 700;
  color: #fff;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}
.dashboard-cell .value .trend {
  font-size: 12px;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: 4px;
}
.trend-up {
  color: var(--primary);
  background: rgba(22,196,106,0.15);
}
.trend-down {
  color: var(--accent);
  background: rgba(15,217,205,0.15);
}
.dashboard-chart {
  margin-top: 20px;
  height: 60px;
  display: flex;
  align-items: flex-end;
}
.dashboard-chart svg {
  width: 100%;
  height: 100%;
}

/* ===== 指标条带 ===== */
.stats-bar {
  background: #fff;
  border-bottom: 1px solid var(--border);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  padding: 40px 0;
}
.stat-item {
  text-align: center;
  padding: 16px 8px;
}
.stat-item .num {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  color: var(--heading);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
  line-height: 1.2;
}
.stat-item .num .unit {
  font-size: 16px;
  color: var(--muted);
  font-weight: 500;
  margin-left: 4px;
}
.stat-item .label {
  font-size: 14px;
  color: var(--muted);
  margin-top: 6px;
}
.stat-item .compare {
  font-size: 12px;
  color: var(--primary);
  margin-top: 4px;
}

/* ===== 服务矩阵 ===== */
.services {
  padding: var(--spacing) 0;
}
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 40px;
  flex-wrap: wrap;
  gap: 16px;
}
.section-head h2 {
  font-size: clamp(28px, 3.5vw, 40px);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}
.section-head .subtitle {
  font-size: 16px;
  color: var(--muted);
}
.section-head .more-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.2s ease;
}
.section-head .more-link:hover {
  gap: 10px;
}
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card {
  background: var(--card);
  border-radius: var(--r-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  opacity: 0;
  transition: opacity 0.3s ease;
}
.service-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}
.service-card:hover::before {
  opacity: 1;
}
.service-card.span-2 {
  grid-column: span 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: center;
}
.service-card .card-icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(22,196,106,0.12), rgba(15,217,205,0.12));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 16px;
}
.service-card h3 {
  font-size: 19px;
  font-weight: 600;
  margin-bottom: 10px;
}
.service-card p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 16px;
}
.service-card .card-more {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap 0.2s ease;
}
.service-card .card-more:hover {
  gap: 8px;
}
.service-card .card-img {
  border-radius: 12px;
  overflow: hidden;
  height: 160px;
}
.service-card .card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ===== 内容动态 ===== */
.updates {
  padding: var(--spacing) 0;
  background: #fff;
}
.news-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.news-item {
  display: flex;
  align-items: center;
  gap: 24px;
  background: #fff;
  border-radius: var(--r-md);
  padding: 16px 20px;
  border: 1px solid var(--border);
  box-shadow: 0 1px 4px rgba(11,20,16,0.02);
  transition: box-shadow 0.3s ease, border-color 0.3s ease;
  margin-bottom: 12px;
  position: relative;
}
.news-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  opacity: 0;
  transition: opacity 0.3s ease;
}
.news-item:hover {
  box-shadow: var(--shadow-md);
}
.news-item:hover::before {
  opacity: 1;
}
.news-thumb {
  width: 120px;
  height: 80px;
  border-radius: var(--r-md);
  overflow: hidden;
  flex-shrink: 0;
  background: #F1F3F0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.news-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.news-content {
  flex: 1;
  min-width: 0;
}
.news-content h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color 0.2s ease;
}
.news-item:hover .news-content h3 {
  color: var(--primary);
}
.news-content p {
  font-size: 14px;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.news-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}
.news-meta .tag {
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  background: rgba(22,196,106,0.1);
  padding: 4px 10px;
  border-radius: var(--r-pill);
}
.news-meta .date {
  font-size: 13px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}
.news-meta .arrow {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1.5px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--muted);
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.news-item:hover .news-meta .arrow {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.news-empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--muted);
}
.news-empty .empty-icon {
  font-size: 48px;
  margin-bottom: 16px;
  opacity: 0.4;
}
.news-empty p {
  font-size: 16px;
}
.load-more-wrap {
  text-align: center;
  margin-top: 32px;
}
.load-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  background: #fff;
  border: 1.5px solid var(--primary);
  padding: 12px 28px;
  border-radius: var(--r-btn);
  transition: background 0.2s ease, color 0.2s ease;
}
.load-more:hover {
  background: var(--primary);
  color: #fff;
}

/* ===== 结果对比 ===== */
.comparison {
  padding: var(--spacing) 0;
}
.compare-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  position: relative;
}
.compare-card {
  background: #fff;
  border-radius: var(--r-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
}
.compare-card.left {
  border-left: 4px solid var(--primary);
}
.compare-card.right {
  border-left: 4px solid var(--warning);
}
.compare-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 20px;
}
.compare-row {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid #F0F2EF;
}
.compare-row:last-child {
  border-bottom: none;
}
.compare-row .row-label {
  font-size: 14px;
  color: var(--muted);
  width: 90px;
  flex-shrink: 0;
}
.compare-row .progress {
  flex: 1;
  height: 8px;
  background: #F1F3F0;
  border-radius: 4px;
  overflow: hidden;
}
.compare-row .progress-bar {
  height: 100%;
  border-radius: 4px;
  transition: width 0.6s ease;
}
.compare-card.left .progress-bar {
  background: linear-gradient(90deg, var(--primary), var(--accent));
}
.compare-card.right .progress-bar {
  background: var(--warning);
}
.compare-row .row-value {
  font-size: 15px;
  font-weight: 700;
  color: var(--heading);
  width: 60px;
  text-align: right;
  font-variant-numeric: tabular-nums;
}
.compare-center {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 110px;
  height: 110px;
  border-radius: 50%;
  background: var(--dark);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: var(--shadow-lg);
  z-index: 2;
  border: 4px solid var(--bg);
}
.compare-center .big {
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
}
.compare-center .small {
  font-size: 12px;
  color: rgba(255,255,255,0.6);
}

/* ===== FAQ ===== */
.faq {
  padding: var(--spacing) 0;
  background: #fff;
}
.faq-wrap {
  max-width: 860px;
  margin: 0 auto;
}
.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-item:first-child {
  border-top: 1px solid var(--border);
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
  cursor: pointer;
  font-size: 17px;
  font-weight: 600;
  color: var(--heading);
  transition: color 0.2s ease;
  background: none;
  width: 100%;
  text-align: left;
}
.faq-question:hover {
  color: var(--primary);
}
.faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1.5px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--muted);
  transition: transform 0.3s ease, background 0.3s ease, color 0.3s ease;
  flex-shrink: 0;
  margin-left: 16px;
}
.faq-item.active .faq-icon {
  transform: rotate(45deg);
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
  padding: 0;
}
.faq-answer p {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.7;
  padding-bottom: 24px;
}

/* ===== 登录表单 ===== */
.login-section {
  padding: var(--spacing) 0;
}
.login-card {
  max-width: 720px;
  margin: 0 auto;
  background: #fff;
  border-radius: var(--r-lg);
  padding: 48px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
}
.login-card h2 {
  font-size: clamp(26px, 3vw, 34px);
  font-weight: 700;
  text-align: center;
  margin-bottom: 10px;
}
.login-card .subtitle {
  font-size: 15px;
  color: var(--muted);
  text-align: center;
  margin-bottom: 36px;
}
.form-group {
  margin-bottom: 20px;
}
.form-group label {
  font-size: 14px;
  font-weight: 600;
  color: var(--heading);
  display: block;
  margin-bottom: 8px;
}
.form-input {
  width: 100%;
  height: 48px;
  border: none;
  background: #F3F5F2;
  border-radius: var(--r-btn);
  padding: 0 18px;
  font-size: 15px;
  color: var(--heading);
  transition: background 0.2s ease, box-shadow 0.2s ease;
  outline: none;
}
.form-input:focus {
  background: #fff;
  box-shadow: 0 0 0 2px var(--primary);
}
.form-input::placeholder {
  color: var(--disable);
}
.form-captcha {
  display: flex;
  gap: 12px;
}
.form-captcha .form-input {
  flex: 1;
}
.captcha-box {
  width: 120px;
  height: 48px;
  background: linear-gradient(135deg, rgba(22,196,106,0.15), rgba(15,217,205,0.15));
  border-radius: var(--r-btn);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
  font-style: italic;
  letter-spacing: 6px;
  user-select: none;
  cursor: pointer;
  transition: transform 0.2s ease;
}
.captcha-box:hover {
  transform: scale(1.02);
}
.login-btn {
  width: 100%;
  margin-top: 12px;
}
.login-links {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid #F0F2EF;
}
.login-links a {
  font-size: 14px;
  color: var(--muted);
  transition: color 0.2s ease;
}
.login-links a:hover {
  color: var(--primary);
}

/* ===== 页脚 ===== */
.footer {
  background: var(--dark);
  padding: 64px 0 0;
  color: rgba(255,255,255,0.7);
}
.footer-top {
  border-top: 1px solid rgba(22,196,106,0.3);
  padding-top: 48px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
}
.footer-brand .footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}
.footer-brand .footer-logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: #fff;
  font-size: 14px;
}
.footer-brand .footer-logo strong {
  font-size: 18px;
  color: #fff;
}
.footer-brand p {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  line-height: 1.6;
  margin-bottom: 20px;
  max-width: 280px;
}
.footer-social {
  display: flex;
  gap: 12px;
}
.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.7);
  font-size: 14px;
  transition: background 0.2s ease, color 0.2s ease;
}
.footer-social a:hover {
  background: var(--primary);
  color: #fff;
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
}
.footer-col ul li {
  margin-bottom: 10px;
}
.footer-col ul li a {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  transition: color 0.2s ease;
}
.footer-col ul li a:hover {
  color: var(--primary);
}
.footer-contact li {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  margin-top: 48px;
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}
.footer-bottom a {
  color: rgba(255,255,255,0.4);
  transition: color 0.2s ease;
}
.footer-bottom a:hover {
  color: var(--primary);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .hero-dashboard {
    max-width: 560px;
  }
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .service-card.span-2 {
    grid-column: span 2;
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .nav-search {
    display: none;
  }
  .compare-wrap {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .compare-center {
    position: static;
    transform: none;
    margin: 0 auto;
  }
}
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .nav-cta {
    display: none;
  }
  .nav-burger {
    display: flex;
  }
  .nav-drawer {
    display: none;
  }
  .nav-drawer.open {
    display: block;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .services-grid {
    grid-template-columns: 1fr;
  }
  .service-card.span-2 {
    grid-column: span 1;
    grid-template-columns: 1fr;
  }
  .news-item {
    flex-wrap: wrap;
    gap: 12px;
  }
  .news-thumb {
    width: 100%;
    height: 140px;
  }
  .news-meta {
    width: 100%;
    justify-content: space-between;
  }
  .login-card {
    padding: 32px 24px;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .hero {
    padding: 130px 0 60px;
  }
  .hero-text h1 {
    font-size: 32px;
  }
}
@media (max-width: 520px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }
  .compare-wrap {
    gap: 16px;
  }
  .compare-card {
    padding: 20px;
  }
  .form-captcha {
    flex-wrap: wrap;
  }
  .captcha-box {
    width: 100%;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* roulang page: article */
/*========== 设计变量 ==========*/
        :root {
            --primary: #16C46A;
            --primary-hover: #0FA555;
            --accent: #0FD9CD;
            --bg: #F7F8F5;
            --dark: #0B1410;
            --text-h: #111A14;
            --text-b: #2A352E;
            --text-m: #64736A;
            --text-disabled: #9AA7A0;
            --card-bg: #FFFFFF;
            --border: #E4E9E4;
            --warning: #F5A623;
            --danger: #E8534A;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 12px;
            --radius-pill: 999px;
            --shadow-sm: 0 2px 8px rgba(11,20,16,0.04);
            --shadow-md: 0 8px 24px rgba(11,20,16,0.10);
            --shadow-lg: 0 16px 48px rgba(11,20,16,0.25);
            --gradient: linear-gradient(135deg, #16C46A 0%, #0FD9CD 100%);
            --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            --font-num: "DIN Alternate", "Bebas Neue", "JetBrains Mono", "SF Mono", monospace;
            --container: 1200px;
            --gap: clamp(64px, 10vw, 112px);
        }

        /*========== Reset ==========*/
        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text-b);
            line-height: 1.75;
            font-size: 16px;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
            border: 0;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }
        input, textarea {
            font-family: inherit;
            font-size: 1rem;
        }
        ul, ol {
            list-style: none;
        }

        /*========== 容器 ==========*/
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding-left: clamp(16px, 4vw, 40px);
            padding-right: clamp(16px, 4vw, 40px);
        }

        /*========== 按钮 ==========*/
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--gradient);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            padding: 14px 28px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255,255,255,0.2);
            box-shadow: 0 4px 16px rgba(22,196,106,0.25);
            transition: all 0.25s ease;
            white-space: nowrap;
        }
        .btn-primary:hover {
            transform: translateY(-1px);
            box-shadow: 0 8px 24px rgba(22,196,106,0.35);
        }
        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: 0 2px 8px rgba(22,196,106,0.2);
        }
        .btn-primary:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: #fff;
            color: var(--primary);
            font-weight: 600;
            font-size: 15px;
            padding: 13px 26px;
            border-radius: var(--radius-sm);
            border: 1.5px solid var(--primary);
            transition: all 0.25s ease;
            white-space: nowrap;
        }
        .btn-outline:hover {
            background: rgba(22,196,106,0.06);
        }
        .btn-outline:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        /*========== 导航 ==========*/
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255,255,255,0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(228,233,228,0.8);
            transition: all 0.3s ease;
        }
        .header.scrolled {
            box-shadow: 0 4px 24px rgba(11,20,16,0.06);
        }
        .nav {
            display: flex;
            align-items: center;
            height: 72px;
            gap: 32px;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .nav-logo-icon {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: var(--dark);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 800;
            letter-spacing: 0.5px;
            box-shadow: 0 2px 8px rgba(11,20,16,0.2);
        }
        .nav-logo-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }
        .nav-logo-text strong {
            font-size: 17px;
            font-weight: 800;
            color: var(--text-h);
            letter-spacing: -0.01em;
        }
        .nav-logo-text span {
            font-size: 11px;
            color: var(--text-m);
            letter-spacing: 0.02em;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            margin-left: 8px;
        }
        .nav-link {
            position: relative;
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-m);
            border-radius: 10px;
            transition: all 0.2s ease;
        }
        .nav-link:hover {
            color: var(--text-h);
            background: rgba(22,196,106,0.06);
        }
        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 2px;
            height: 2px;
            border-radius: 2px;
            background: var(--primary);
        }
        .nav-tools {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-left: auto;
        }
        .nav-search {
            display: flex;
            align-items: center;
            gap: 8px;
            background: #F0F2EE;
            border: 1px solid transparent;
            border-radius: var(--radius-pill);
            padding: 8px 14px;
            width: 232px;
            cursor: pointer;
            transition: all 0.25s ease;
        }
        .nav-search:hover {
            border-color: var(--border);
            background: #fff;
            box-shadow: var(--shadow-sm);
        }
        .nav-search svg {
            width: 16px;
            height: 16px;
            color: var(--text-m);
            flex-shrink: 0;
        }
        .nav-search span {
            flex: 1;
            font-size: 13px;
            color: var(--text-disabled);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .nav-search kbd {
            font-family: var(--font-sans);
            font-size: 11px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 6px;
            padding: 2px 8px;
            color: var(--text-m);
            box-shadow: 0 1px 0 rgba(11,20,16,0.04);
        }
        .nav-bell {
            position: relative;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-m);
            transition: all 0.2s ease;
        }
        .nav-bell:hover {
            background: #F0F2EE;
            color: var(--text-h);
        }
        .nav-bell svg {
            width: 19px;
            height: 19px;
        }
        .nav-bell .dot {
            position: absolute;
            top: 8px;
            right: 9px;
            width: 7px;
            height: 7px;
            background: var(--danger);
            border-radius: 50%;
            border: 2px solid #fff;
        }
        .nav-cta {
            padding: 10px 22px;
            font-size: 14px;
        }
        .nav-burger {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            align-items: center;
            justify-content: center;
            background: #F0F2EE;
        }
        .nav-burger span {
            position: relative;
            width: 18px;
            height: 2px;
            background: var(--text-h);
            border-radius: 2px;
        }
        .nav-burger span::before,
        .nav-burger span::after {
            content: "";
            position: absolute;
            left: 0;
            width: 18px;
            height: 2px;
            background: var(--text-h);
            border-radius: 2px;
        }
        .nav-burger span::before {
            top: -6px;
        }
        .nav-burger span::after {
            top: 6px;
        }

        /*========== 面包屑 ==========*/
        .breadcrumb-wrap {
            padding-top: 120px;
            padding-bottom: 12px;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-m);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-m);
            transition: color 0.2s ease;
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: var(--text-disabled);
            font-size: 12px;
        }
        .breadcrumb .current {
            color: var(--text-h);
            font-weight: 600;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            max-width: 420px;
        }

        /*========== 文章头 ==========*/
        .article-header {
            padding: 32px 0 8px;
        }
        .article-header-inner {
            max-width: 820px;
            margin: 0 auto;
        }
        .article-title {
            font-size: clamp(32px, 4.5vw, 48px);
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.02em;
            color: var(--text-h);
            margin-bottom: 20px;
        }
        .article-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 14px;
            color: var(--text-m);
            margin-bottom: 28px;
        }
        .article-meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .article-meta-item svg {
            width: 15px;
            height: 15px;
            color: var(--text-disabled);
        }
        .article-meta .tag {
            display: inline-flex;
            align-items: center;
            background: rgba(22,196,106,0.1);
            color: var(--primary-hover);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: var(--radius-pill);
        }
        .article-summary {
            background: #F3F7F3;
            border-left: 4px solid var(--primary);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            padding: 20px 24px;
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-b);
            margin-bottom: 12px;
        }

        /*========== 正文 ==========*/
        .article-main {
            padding: 24px 0 40px;
        }
        .article-content {
            max-width: 820px;
            margin: 0 auto;
        }
        .article-body {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-b);
        }
        .article-body p {
            margin-bottom: 28px;
        }
        .article-body h2 {
            font-size: clamp(24px, 3vw, 30px);
            font-weight: 700;
            color: var(--text-h);
            margin: 48px 0 20px;
            letter-spacing: -0.01em;
        }
        .article-body h3 {
            font-size: 21px;
            font-weight: 700;
            color: var(--text-h);
            margin: 36px 0 16px;
        }
        .article-body blockquote {
            border-left: 4px solid var(--primary);
            background: rgba(22,196,106,0.05);
            padding: 16px 24px;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            margin: 0 0 28px;
            color: var(--text-m);
            font-style: normal;
        }
        .article-body ul {
            margin: 0 0 28px;
            padding-left: 8px;
        }
        .article-body ul li {
            position: relative;
            padding-left: 24px;
            margin-bottom: 10px;
        }
        .article-body ul li::before {
            content: "";
            position: absolute;
            left: 4px;
            top: 12px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--primary);
        }
        .article-body img {
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            margin: 0 0 28px;
            background: #E4E9E4;
        }
        .article-not-found {
            text-align: center;
            padding: 60px 20px;
        }
        .article-not-found .nf-icon {
            font-size: 48px;
            margin-bottom: 16px;
        }
        .article-not-found h2 {
            font-size: 24px;
            color: var(--text-h);
            margin-bottom: 12px;
        }
        .article-not-found p {
            color: var(--text-m);
            margin-bottom: 24px;
        }

        /*========== 文末 ==========*/
        .article-footer {
            max-width: 820px;
            margin: 0 auto;
            padding: 32px 0 24px;
            border-top: 1px solid var(--border);
        }
        .article-tags {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            margin-bottom: 32px;
        }
        .article-tags .label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-m);
        }
        .article-tags .tag {
            background: #F0F2EE;
            color: var(--text-b);
            font-size: 13px;
            padding: 5px 14px;
            border-radius: var(--radius-pill);
            transition: all 0.2s ease;
        }
        .article-tags .tag:hover {
            background: rgba(22,196,106,0.1);
            color: var(--primary-hover);
        }
        .article-pager {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        .pager-item {
            display: flex;
            flex-direction: column;
            gap: 6px;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 18px 22px;
            transition: all 0.25s ease;
            box-shadow: var(--shadow-sm);
        }
        .pager-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .pager-item.next {
            text-align: right;
        }
        .pager-item .dir {
            font-size: 13px;
            color: var(--text-disabled);
        }
        .pager-item .title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-h);
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        /*========== 相关推荐 ==========*/
        .related-section {
            padding: 50px 0 30px;
        }
        .related-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 28px;
        }
        .related-header h2 {
            font-size: clamp(22px, 2.8vw, 28px);
            font-weight: 700;
            color: var(--text-h);
            letter-spacing: -0.01em;
        }
        .related-header a {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .related-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all 0.3s ease;
            box-shadow: var(--shadow-sm);
        }
        .related-card:hover {
            transform: translateY(-4px);
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
        }
        .related-card img {
            width: 100%;
            height: 160px;
            object-fit: cover;
            background: #E8EBE6;
        }
        .related-card-body {
            padding: 18px 20px 20px;
        }
        .related-card-body h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-h);
            line-height: 1.5;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            min-height: 48px;
        }
        .related-card-body .date {
            font-size: 13px;
            color: var(--text-m);
            font-family: var(--font-num);
        }

        /*========== CTA ==========*/
        .cta-section {
            padding: 24px 0 var(--gap);
        }
        .cta-box {
            background: var(--dark);
            border-radius: var(--radius-lg);
            padding: clamp(40px, 6vw, 64px);
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-box::before {
            content: "";
            position: absolute;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(22,196,106,0.12);
            filter: blur(80px);
            top: -100px;
            right: -60px;
            pointer-events: none;
        }
        .cta-box h2 {
            font-size: clamp(26px, 3.5vw, 36px);
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
            margin-bottom: 14px;
            position: relative;
        }
        .cta-box p {
            font-size: 16px;
            color: rgba(255,255,255,0.7);
            max-width: 560px;
            margin: 0 auto 32px;
            position: relative;
        }
        .cta-box .btn-primary {
            position: relative;
            font-size: 16px;
            padding: 16px 36px;
        }

        /*========== 页脚 ==========*/
        .footer {
            background: var(--dark);
            color: rgba(255,255,255,0.75);
            border-top: 2px solid transparent;
            border-image: var(--gradient) 1;
        }
        .footer-top {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 48px;
            padding: 64px 0 48px;
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }
        .footer-logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            font-weight: 800;
        }
        .footer-logo strong {
            font-size: 18px;
            font-weight: 800;
            color: #fff;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255,255,255,0.55);
            margin-bottom: 20px;
            max-width: 320px;
        }
        .footer-social {
            display: flex;
            gap: 10px;
        }
        .footer-social a {
            width: 36px;
            height: 36px;
            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);
            transition: all 0.25s ease;
        }
        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 18px;
        }
        .footer-col ul li {
            margin-bottom: 12px;
        }
        .footer-col ul a {
            font-size: 14px;
            color: rgba(255,255,255,0.55);
            transition: all 0.2s ease;
        }
        .footer-col ul a:hover {
            color: var(--primary);
            padding-left: 4px;
        }
        .footer-contact ul li {
            font-size: 14px;
            color: rgba(255,255,255,0.55);
            margin-bottom: 12px;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 24px 0;
            border-top: 1px solid rgba(255,255,255,0.08);
            font-size: 13px;
            color: rgba(255,255,255,0.4);
        }
        .footer-bottom a {
            color: rgba(255,255,255,0.5);
            transition: color 0.2s ease;
        }
        .footer-bottom a:hover {
            color: var(--primary);
        }

        /*========== 响应式 ==========*/
        @media (max-width: 1024px) {
            .nav {
                gap: 16px;
            }
            .nav-search {
                width: 180px;
            }
            .nav-links {
                display: none;
            }
            .nav-burger {
                display: flex;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 40px;
            }
        }
        @media (max-width: 640px) {
            .nav {
                height: 64px;
                gap: 10px;
            }
            .nav-logo-icon {
                width: 34px;
                height: 34px;
                font-size: 12px;
            }
            .nav-logo-text strong {
                font-size: 15px;
            }
            .nav-logo-text span {
                font-size: 10px;
            }
            .nav-search {
                display: none;
            }
            .nav-bell {
                display: none;
            }
            .nav-cta {
                padding: 8px 16px;
                font-size: 13px;
            }
            .breadcrumb-wrap {
                padding-top: 96px;
            }
            .breadcrumb .current {
                max-width: 220px;
            }
            .article-title {
                font-size: 28px;
            }
            .article-meta {
                gap: 12px;
                font-size: 13px;
            }
            .article-summary {
                padding: 16px 18px;
                font-size: 15px;
            }
            .article-pager {
                grid-template-columns: 1fr;
            }
            .pager-item.next {
                text-align: left;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .related-card img {
                height: 180px;
            }
            .cta-box {
                padding: 36px 24px;
            }
            .cta-box h2 {
                font-size: 24px;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 32px;
                padding: 48px 0 32px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 8px;
                text-align: center;
            }
        }

/* roulang page: category1 */
:root {
  --primary: #16C46A;
  --primary-dark: #0FA555;
  --accent: #0FD9CD;
  --dark: #0B1410;
  --bg: #F7F8F5;
  --text: #111A14;
  --text-body: #2A352E;
  --text-muted: #64736A;
  --text-placeholder: #9AA7A0;
  --border: #E4E9E4;
  --white: #FFFFFF;
  --warning: #F5A623;
  --error: #E8534A;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 12px;
  --radius-pill: 999px;
  --shadow-sm: 0 2px 8px rgba(11,20,16,0.04);
  --shadow-md: 0 8px 24px rgba(11,20,16,0.10);
  --shadow-lg: 0 16px 48px rgba(11,20,16,0.25);
  --gradient: 135deg, #16C46A 0%, #0FD9CD 100%;
  --font-main: -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  --font-num: "DIN Alternate", "Bebas Neue", "JetBrains Mono", monospace;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-body);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4, h5, h6 { margin: 0; color: var(--text); font-weight: 700; line-height: 1.3; }
p { margin: 0; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input { font-family: inherit; }
ul { margin: 0; padding: 0; list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 clamp(16px, 4vw, 40px); }
.section { padding: clamp(64px, 10vw, 112px) 0; }
.section + .section { padding-top: 0; }

/* 按钮 */
.btn-primary {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: linear-gradient(var(--gradient));
  color: #fff; font-weight: 600; font-size: 15px; line-height: 1;
  padding: 14px 28px; border-radius: var(--radius-sm);
  border: 1px solid rgba(255,255,255,0.35);
  box-shadow: 0 4px 16px rgba(22,196,106,0.3);
  transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 8px 24px rgba(22,196,106,0.4); }
.btn-primary:active { transform: translateY(1px); box-shadow: 0 2px 8px rgba(22,196,106,0.3); }
.btn-primary:focus-visible, .btn-outline:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.btn-outline {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: var(--white); color: var(--primary); font-weight: 600; font-size: 15px;
  padding: 13px 27px; border-radius: var(--radius-sm);
  border: 1.5px solid var(--primary);
  transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}
.btn-outline:hover { background: rgba(22,196,106,0.05); transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.btn-outline:active { transform: translateY(1px); }
.btn-text {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--primary); font-weight: 600; font-size: 15px;
  transition: gap 0.2s ease;
}
.btn-text:hover { gap: 10px; }
.btn-text .arrow { transition: transform 0.2s ease; }
.btn-text:hover .arrow { transform: translateX(4px); }

/* 标签 */
.tag {
  display: inline-flex; align-items: center;
  background: rgba(22,196,106,0.1); color: var(--primary-dark);
  font-size: 12px; font-weight: 600; padding: 4px 12px; border-radius: var(--radius-pill);
}

/* 导航 */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(228,233,228,0.8);
  transition: box-shadow 0.3s ease, background 0.3s ease;
}
.header.scrolled { box-shadow: 0 4px 24px rgba(11,20,16,0.06); }
.nav {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px; gap: 16px;
}
.nav-logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.nav-logo-icon {
  width: 40px; height: 40px; border-radius: 12px;
  background: linear-gradient(var(--gradient));
  color: #fff; font-weight: 800; font-size: 15px;
  display: flex; align-items: center; justify-content: center;
  letter-spacing: -0.02em;
}
.nav-logo-text { display: flex; flex-direction: column; line-height: 1.2; }
.nav-logo-text strong { font-size: 17px; font-weight: 800; color: var(--text); letter-spacing: -0.02em; }
.nav-logo-text span { font-size: 11px; color: var(--text-muted); }
.nav-links { display: flex; align-items: center; gap: 4px; margin-left: 24px; }
.nav-link {
  display: inline-flex; align-items: center;
  padding: 8px 14px; border-radius: var(--radius-sm);
  font-size: 15px; font-weight: 500; color: var(--text-body);
  transition: color 0.2s ease, background 0.2s ease;
  position: relative;
}
.nav-link::after {
  content: ''; position: absolute; left: 14px; right: 14px; bottom: 2px; height: 2px;
  border-radius: 2px; background: var(--primary); opacity: 0; transform: scaleX(0.5);
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.nav-link:hover { color: var(--primary); background: rgba(22,196,106,0.04); }
.nav-link.active { color: var(--primary); font-weight: 600; }
.nav-link.active::after { opacity: 1; transform: scaleX(1); }
.nav-tools { display: flex; align-items: center; gap: 12px; }
.nav-search {
  display: flex; align-items: center; gap: 8px;
  background: #F3F5F2; border: 1px solid transparent;
  border-radius: var(--radius-pill); padding: 8px 14px;
  min-width: 200px; color: var(--text-muted); font-size: 13px;
  cursor: pointer; transition: border-color 0.2s ease, background 0.2s ease;
}
.nav-search:hover { border-color: var(--primary); background: #fff; }
.nav-search svg { width: 16px; height: 16px; flex-shrink: 0; }
.nav-search kbd {
  margin-left: auto; font-size: 11px; font-family: var(--font-num);
  background: #E4E9E4; padding: 2px 6px; border-radius: 6px; color: var(--text-muted);
}
.nav-bell { position: relative; width: 40px; height: 40px; border-radius: 12px; display: flex; align-items: center; justify-content: center; color: var(--text-muted); transition: background 0.2s ease, color 0.2s ease; }
.nav-bell:hover { background: #F3F5F2; color: var(--text); }
.nav-bell svg { width: 20px; height: 20px; }
.nav-bell .dot { position: absolute; top: 8px; right: 9px; width: 7px; height: 7px; border-radius: 50%; background: var(--error); border: 2px solid var(--white); }
.nav-cta { padding: 10px 20px; font-size: 14px; }
.nav-burger { display: none; flex-direction: column; gap: 5px; width: 40px; height: 40px; align-items: center; justify-content: center; border-radius: 12px; transition: background 0.2s ease; }
.nav-burger span { display: block; width: 18px; height: 2px; border-radius: 2px; background: var(--text); transition: transform 0.3s ease, opacity 0.3s ease; }
.nav-burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-burger.open span:nth-child(2) { opacity: 0; }
.mobile-menu {
  position: fixed; top: 72px; left: 0; right: 0; z-index: 999;
  background: var(--white); border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-md);
  display: flex; flex-direction: column; padding: 16px clamp(16px, 4vw, 40px) 24px;
  transform: translateY(-100%); opacity: 0; visibility: hidden;
  transition: transform 0.3s ease, opacity 0.3s ease, visibility 0.3s;
}
.mobile-menu.open { transform: translateY(0); opacity: 1; visibility: visible; }
.mobile-menu .nav-link { width: 100%; justify-content: flex-start; padding: 14px; font-size: 16px; }
.mobile-menu .nav-link::after { display: none; }
.mobile-search {
  display: flex; align-items: center; gap: 8px;
  background: #F3F5F2; border-radius: var(--radius-sm);
  padding: 12px 16px; margin-bottom: 8px; color: var(--text-muted); font-size: 14px;
}
.mobile-search svg { width: 18px; height: 18px; }
.mobile-search kbd { margin-left: auto; font-size: 12px; font-family: var(--font-num); background: #E4E9E4; padding: 2px 8px; border-radius: 6px; }
.mobile-menu .btn-primary { margin-top: 12px; width: 100%; }

/* 面包屑 */
.breadcrumb { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; font-size: 13px; color: var(--text-muted); }
.breadcrumb a { color: var(--text-muted); transition: color 0.2s ease; }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: #C6CEC7; }
.breadcrumb .current { color: var(--text-body); font-weight: 500; }

/* 分类页 Hero */
.page-hero {
  position: relative; overflow: hidden;
  background: linear-gradient(135deg, #EAF6F0 0%, #F7F8F5 45%, #E3F2EC 100%);
  padding-top: 160px; padding-bottom: clamp(48px, 8vw, 96px);
}
.page-hero::before {
  content: ''; position: absolute; inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover; background-position: center;
  opacity: 0.18; pointer-events: none;
}
.page-hero::after {
  content: ''; position: absolute; right: -120px; top: -120px; width: 360px; height: 360px;
  background: radial-gradient(circle, rgba(22,196,106,0.15) 0%, transparent 70%);
  border-radius: 50%; pointer-events: none;
}
.page-hero .container { position: relative; z-index: 1; display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: center; }
.page-hero-content { max-width: 560px; }
.page-hero .breadcrumb { margin-bottom: 24px; }
.page-hero h1 { font-size: clamp(36px, 5vw, 52px); font-weight: 800; letter-spacing: -0.02em; line-height: 1.2; margin-bottom: 16px; }
.page-hero h1 .accent { background: linear-gradient(var(--gradient)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.page-hero-lead { font-size: 17px; line-height: 1.8; color: var(--text-muted); margin-bottom: 28px; max-width: 480px; }
.page-hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 32px; }
.page-hero-stats { display: flex; gap: 32px; flex-wrap: wrap; }
.hero-stat { display: flex; flex-direction: column; }
.hero-stat .num { font-family: var(--font-num); font-size: clamp(24px, 3vw, 36px); font-weight: 700; color: var(--text); letter-spacing: -0.01em; }
.hero-stat .label { font-size: 13px; color: var(--text-muted); margin-top: 2px; }
.hero-stat .label.up { color: var(--primary-dark); }
.hero-visual { position: relative; }
.hero-panel {
  background: linear-gradient(145deg, var(--dark) 0%, #101B15 60%, #0B1410 100%);
  border-radius: var(--radius-lg); padding: 28px;
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255,255,255,0.06);
  position: relative; overflow: hidden;
}
.hero-panel::before {
  content: ''; position: absolute; top: -80px; right: -80px; width: 200px; height: 200px;
  background: radial-gradient(circle, rgba(22,196,106,0.25) 0%, transparent 70%);
}
.hero-panel-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; position: relative; z-index: 1; }
.hero-panel-title { color: rgba(255,255,255,0.92); font-size: 15px; font-weight: 600; }
.live-badge { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 700; color: var(--primary); background: rgba(22,196,106,0.12); border: 1px solid rgba(22,196,106,0.3); padding: 4px 10px; border-radius: var(--radius-pill); }
.live-badge::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--primary); animation: pulse 1.6s ease-in-out infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.4; transform: scale(0.75); } }
.hero-metrics { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.08); border-radius: 14px; overflow: hidden; position: relative; z-index: 1; }
.hero-metric { background: rgba(11,20,16,0.9); padding: 18px; }
.hero-metric .meta-label { font-size: 12px; color: rgba(255,255,255,0.5); }
.hero-metric .meta-num { font-family: var(--font-num); font-size: clamp(22px, 2.4vw, 30px); font-weight: 700; color: #fff; margin-top: 4px; letter-spacing: -0.01em; }
.hero-metric .meta-trend { display: inline-flex; align-items: center; gap: 4px; font-size: 12px; font-weight: 600; margin-top: 6px; padding: 2px 8px; border-radius: 6px; }
.hero-metric .meta-trend.up { color: var(--primary); background: rgba(22,196,106,0.12); }
.hero-metric .meta-trend.ok { color: var(--accent); background: rgba(15,217,205,0.12); }
.hero-metric .meta-trend.down { color: var(--accent); background: rgba(15,217,205,0.12); }
.hero-chart { margin-top: 20px; height: 56px; position: relative; z-index: 1; }
.hero-chart svg { width: 100%; height: 100%; }
.hero-float {
  position: absolute; right: -12px; top: -16px; z-index: 2;
  background: #fff; border-radius: var(--radius-md); padding: 12px 16px;
  box-shadow: var(--shadow-md); display: flex; align-items: center; gap: 10px;
  border: 1px solid var(--border);
}
.hero-float .icon { width: 36px; height: 36px; border-radius: 10px; background: rgba(22,196,106,0.12); display: flex; align-items: center; justify-content: center; font-size: 18px; }
.hero-float .txt { display: flex; flex-direction: column; line-height: 1.3; }
.hero-float .txt strong { font-size: 14px; color: var(--text); }
.hero-float .txt span { font-size: 12px; color: var(--text-muted); }

/* 分类简介 */
.intro-card {
  margin-top: -1px; background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: clamp(24px, 4vw, 40px);
  display: flex; gap: 32px; flex-wrap: wrap; align-items: flex-start;
  box-shadow: var(--shadow-sm);
}
.intro-card-main { flex: 1 1 500px; }
.intro-card-main h2 { font-size: clamp(22px, 2.4vw, 30px); font-weight: 700; margin-bottom: 12px; }
.intro-card-main p { color: var(--text-muted); font-size: 16px; line-height: 1.8; }
.intro-card-tags { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 18px; }
.intro-card-side { flex: 0 0 220px; display: flex; flex-direction: column; justify-content: center; gap: 8px; padding-left: 32px; border-left: 1px solid var(--border); }
.intro-card-side .item { display: flex; justify-content: space-between; align-items: baseline; }
.intro-card-side .item .name { font-size: 14px; color: var(--text-muted); }
.intro-card-side .item .val { font-family: var(--font-num); font-size: 18px; font-weight: 700; color: var(--text); }

/* 区块标题 */
.section-header { margin-bottom: 40px; display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.section-header .kicker { display: inline-block; font-size: 13px; font-weight: 700; color: var(--primary); background: rgba(22,196,106,0.08); padding: 4px 14px; border-radius: var(--radius-pill); margin-bottom: 10px; }
.section-header h2 { font-size: clamp(28px, 3.5vw, 40px); letter-spacing: -0.02em; }
.section-header .lead { color: var(--text-muted); font-size: 16px; margin-top: 10px; max-width: 560px; }
.section-header .side-link { color: var(--primary); font-weight: 600; font-size: 14px; display: inline-flex; align-items: center; gap: 6px; }

/* 服务矩阵（错位网格） */
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.service-card {
  background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 32px 28px; position: relative; overflow: hidden;
  box-shadow: var(--shadow-sm); transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.service-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: linear-gradient(var(--gradient)); opacity: 0; transition: opacity 0.25s ease; }
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.service-card:hover::before { opacity: 1; }
.service-card.span-2 { grid-column: span 2; }
.service-icon {
  width: 48px; height: 48px; border-radius: 14px;
  background: rgba(22,196,106,0.1); color: var(--primary);
  display: flex; align-items: center; justify-content: center; margin-bottom: 18px;
}
.service-icon svg { width: 24px; height: 24px; }
.service-card h3 { font-size: 19px; font-weight: 600; margin-bottom: 8px; }
.service-card p { color: var(--text-muted); font-size: 14px; line-height: 1.7; }
.service-card .more { display: inline-flex; align-items: center; gap: 6px; color: var(--primary); font-size: 14px; font-weight: 600; margin-top: 16px; }
.service-card .more .arrow { transition: transform 0.2s ease; }
.service-card:hover .more .arrow { transform: translateX(4px); }
.service-guide {
  grid-column: span 1; display: flex; flex-direction: column; justify-content: center;
  background: linear-gradient(var(--gradient)); border: none; color: #fff;
}
.service-guide h3 { color: #fff; font-size: 18px; margin-bottom: 8px; }
.service-guide p { color: rgba(255,255,255,0.85); font-size: 14px; }
.service-guide .more { color: #fff; }

/* 适用场景 */
.scenarios-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.scenario-card {
  background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-lg);
  overflow: hidden; box-shadow: var(--shadow-sm); transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.scenario-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.scenario-card .cover { height: 200px; position: relative; overflow: hidden; background: #E8EDE8; }
.scenario-card .cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.scenario-card:hover .cover img { transform: scale(1.04); }
.scenario-card .cover::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 40%, rgba(11,20,16,0.35) 100%); }
.scenario-card .cover-tag { position: absolute; top: 14px; left: 14px; z-index: 2; }
.scenario-card .body { padding: 24px; }
.scenario-card .body h3 { font-size: 19px; font-weight: 600; margin-bottom: 8px; }
.scenario-card .body p { color: var(--text-muted); font-size: 14px; line-height: 1.7; }
.scenario-card .body .arrow-link { display: inline-flex; align-items: center; gap: 6px; color: var(--primary); font-weight: 600; font-size: 14px; margin-top: 14px; }

/* 流程 */
.process {
  background: var(--dark); position: relative; overflow: hidden;
}
.process::before {
  content: ''; position: absolute; inset: 0;
  background-image: url('/assets/images/backpic/back-2.webp');
  background-size: cover; background-position: center;
  opacity: 0.12;
}
.process .section-header h2, .process .section-header .lead { color: #fff; }
.process .section-header .lead { color: rgba(255,255,255,0.6); }
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; position: relative; z-index: 1; }
.process-step {
  background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg); padding: 28px 24px; position: relative;
  transition: background 0.25s ease, border-color 0.25s ease;
}
.process-step:hover { background: rgba(255,255,255,0.08); border-color: rgba(22,196,106,0.4); }
.process-step .step-num {
  font-family: var(--font-num); font-size: 34px; font-weight: 700;
  background: linear-gradient(var(--gradient)); -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; line-height: 1; margin-bottom: 16px;
}
.process-step h3 { color: #fff; font-size: 18px; margin-bottom: 8px; }
.process-step p { color: rgba(255,255,255,0.55); font-size: 14px; line-height: 1.6; }
.process-step .step-arrow { position: absolute; top: 50%; right: -20px; transform: translateY(-50%); color: rgba(255,255,255,0.25); font-size: 20px; z-index: 2; }
.process-step:last-child .step-arrow { display: none; }

/* 数据对比 */
.compare-grid { display: grid; grid-template-columns: 1fr 88px 1fr; gap: 24px; align-items: center; }
.compare-card {
  background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 32px; box-shadow: var(--shadow-sm);
}
.compare-card .compare-title { font-size: 19px; font-weight: 600; margin-bottom: 20px; display: flex; align-items: center; gap: 10px; }
.compare-card .compare-title .dot { width: 8px; height: 8px; border-radius: 50%; }
.compare-card.old .compare-title .dot { background: #C6CEC7; }
.compare-card.old .compare-title { color: var(--text-muted); }
.compare-card.new .compare-title .dot { background: var(--primary); }
.compare-row { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.compare-row:last-child { margin-bottom: 0; }
.compare-row .row-label { font-size: 13px; color: var(--text-muted); width: 88px; flex-shrink: 0; }
.compare-row .bar { flex: 1; height: 8px; border-radius: 8px; background: #EEF1EE; overflow: hidden; }
.compare-row .bar i { display: block; height: 100%; border-radius: 8px; }
.compare-card.old .bar i { background: #C6CEC7; }
.compare-card.new .bar i { background: linear-gradient(var(--gradient)); }
.compare-row .val { font-family: var(--font-num); font-size: 15px; font-weight: 700; color: var(--text); width: 44px; text-align: right; }
.compare-badge {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  background: linear-gradient(var(--gradient)); color: #fff;
  border-radius: 50%; width: 88px; height: 88px; flex-shrink: 0;
  box-shadow: 0 8px 24px rgba(22,196,106,0.3);
}
.compare-badge .big { font-family: var(--font-num); font-size: 24px; font-weight: 700; line-height: 1; }
.compare-badge .small { font-size: 12px; margin-top: 4px; }

/* 数据面板预览 */
.panel-preview { position: relative; }
.panel-preview .section-header h2 { color: #fff; }
.panel-preview .section-header .lead { color: rgba(255,255,255,0.6); }
.panel {
  background: linear-gradient(145deg, var(--dark) 0%, #0F1713 60%, #0B1410 100%);
  border-radius: var(--radius-lg); padding: clamp(28px, 4vw, 44px);
  border: 1px solid rgba(255,255,255,0.07);
  box-shadow: var(--shadow-lg); position: relative; overflow: hidden;
}
.panel::before {
  content: ''; position: absolute; top: -100px; right: -100px; width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(22,196,106,0.2) 0%, transparent 70%);
}
.panel-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 28px; flex-wrap: wrap; gap: 12px; position: relative; z-index: 1; }
.panel-header h3 { color: #fff; font-size: 20px; font-weight: 600; }
.panel-metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.08); border-radius: 14px; overflow: hidden; position: relative; z-index: 1; }
.panel-metric { background: rgba(11,20,16,0.92); padding: 24px 22px; }
.panel-metric .p-label { font-size: 13px; color: rgba(255,255,255,0.5); }
.panel-metric .p-num { font-family: var(--font-num); font-size: clamp(26px, 3vw, 38px); font-weight: 700; color: #fff; letter-spacing: -0.01em; margin-top: 6px; line-height: 1.1; }
.panel-metric .p-trend { display: inline-flex; align-items: center; gap: 4px; font-size: 12px; font-weight: 600; margin-top: 8px; padding: 3px 8px; border-radius: 6px; }
.panel-metric .p-trend.up { color: var(--primary); background: rgba(22,196,106,0.1); }
.panel-metric .p-trend.down { color: var(--accent); background: rgba(15,217,205,0.1); }
.panel-chart { margin-top: 24px; height: 90px; position: relative; z-index: 1; background: rgba(255,255,255,0.02); border-radius: 12px; }
.panel-chart svg { width: 100%; height: 100%; }

/* FAQ */
.faq-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 0 clamp(24px, 4vw, 48px); }
.faq-list { display: flex; flex-direction: column; }
.faq-item {
  border-bottom: 1px solid var(--border); padding: 20px 0;
  transition: border-color 0.2s ease;
}
.faq-item + .faq-item { border-top: 1px solid var(--border); border-bottom: none; padding-top: 0; }
.faq-item:first-child { border-top: 1px solid var(--border); }
.faq-q {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  font-size: 17px; font-weight: 600; color: var(--text); cursor: pointer;
  padding: 4px 0; transition: color 0.2s ease;
}
.faq-q:hover { color: var(--primary); }
.faq-q .icon { position: relative; width: 24px; height: 24px; flex-shrink: 0; }
.faq-q .icon::before, .faq-q .icon::after { content: ''; position: absolute; background: var(--text-muted); border-radius: 2px; transition: transform 0.3s ease, background 0.3s ease; }
.faq-q .icon::before { top: 11px; left: 3px; width: 18px; height: 2px; }
.faq-q .icon::after { top: 3px; left: 11px; width: 2px; height: 18px; }
.faq-item.open .faq-q .icon::before { transform: rotate(180deg); background: var(--primary); }
.faq-item.open .faq-q .icon::after { transform: rotate(90deg); background: var(--primary); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.35s ease, opacity 0.35s ease; opacity: 0; }
.faq-a-inner { padding: 12px 0 16px; font-size: 15px; color: var(--text-muted); line-height: 1.75; }
.faq-item.open .faq-a { max-height: 300px; opacity: 1; }

/* CTA / 表单 */
.cta-section { background: linear-gradient(135deg, #EAF6F0 0%, #F7F8F5 50%, #E6F4EA 100%); }
.cta-card {
  background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md); padding: clamp(28px, 5vw, 56px);
  max-width: 720px; margin: 0 auto; text-align: center;
}
.cta-card h2 { font-size: clamp(26px, 3.5vw, 36px); font-weight: 800; letter-spacing: -0.02em; margin-bottom: 12px; }
.cta-card .cta-sub { color: var(--text-muted); font-size: 16px; margin-bottom: 32px; }
.form-group { text-align: left; margin-bottom: 18px; }
.form-group label { display: block; font-size: 14px; font-weight: 600; color: var(--text); margin-bottom: 6px; }
.form-group input {
  width: 100%; height: 48px; border-radius: var(--radius-sm); border: 1px solid transparent;
  background: #F3F5F2; padding: 0 16px; font-size: 15px; color: var(--text);
  transition: background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}
.form-group input::placeholder { color: var(--text-placeholder); }
.form-group input:focus { outline: none; background: #fff; border-color: var(--primary); box-shadow: 0 0 0 4px rgba(22,196,106,0.12); }
.form-row { display: flex; gap: 12px; }
.form-row .form-group:first-child { flex: 1; }
.form-row .form-group:last-child { flex: 0 0 120px; }
.captcha-box {
  height: 48px; border-radius: var(--radius-sm);
  background: linear-gradient(135deg, rgba(22,196,106,0.12), rgba(15,217,205,0.12));
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-num); font-size: 18px; font-weight: 700;
  color: var(--primary-dark); letter-spacing: 4px; user-select: none;
  cursor: pointer; border: 1px solid rgba(22,196,106,0.2);
  transform: skewX(-6deg); font-style: italic;
}
.form-actions { margin-top: 24px; }
.form-actions .btn-primary { width: 100%; }
.form-help { display: flex; justify-content: space-between; align-items: center; margin-top: 16px; font-size: 14px; }
.form-help a { color: var(--primary); font-weight: 500; transition: color 0.2s ease; }
.form-help a:hover { color: var(--primary-dark); }
.form-divider { display: flex; align-items: center; gap: 12px; margin-top: 24px; color: var(--text-placeholder); font-size: 13px; }
.form-divider::before, .form-divider::after { content: ''; flex: 1; height: 1px; background: var(--border); }

/* 页脚 */
.footer {
  background: var(--dark); color: rgba(255,255,255,0.7);
  padding-top: 64px; position: relative;
}
.footer::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px; background: linear-gradient(var(--gradient)); }
.footer-top { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 48px; }
.footer-brand .footer-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.footer-logo-icon { width: 40px; height: 40px; border-radius: 12px; background: linear-gradient(var(--gradient)); color: #fff; font-weight: 800; display: flex; align-items: center; justify-content: center; }
.footer-logo strong { color: #fff; font-size: 19px; font-weight: 800; letter-spacing: -0.02em; }
.footer-brand p { font-size: 14px; line-height: 1.8; max-width: 300px; margin-bottom: 20px; }
.footer-social { display: flex; gap: 10px; }
.footer-social a { width: 36px; height: 36px; border-radius: 50%; background: rgba(255,255,255,0.08); color: rgba(255,255,255,0.7); display: flex; align-items: center; justify-content: center; transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease; }
.footer-social a:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
.footer-col h4 { color: #fff; font-size: 15px; font-weight: 600; margin-bottom: 16px; }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col ul li { font-size: 14px; }
.footer-col ul li a { transition: color 0.2s ease, transform 0.2s ease; display: inline-block; }
.footer-col ul li a:hover { color: var(--primary); transform: translateX(2px); }
.footer-contact ul li { display: flex; align-items: center; gap: 8px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding: 20px 0; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; font-size: 13px; color: rgba(255,255,255,0.45); }
.footer-bottom a { color: rgba(255,255,255,0.6); transition: color 0.2s ease; }
.footer-bottom a:hover { color: var(--primary); }

/* 移动端菜单 */
@media (max-width: 1024px) {
  .page-hero .container { grid-template-columns: 1fr; gap: 40px; }
  .page-hero-content { max-width: 100%; }
  .process-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .process-step .step-arrow { display: none; }
  .panel-metrics { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
  .scenarios-grid { grid-template-columns: repeat(2, 1fr); }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .service-card.span-2 { grid-column: span 2; }
}
@media (max-width: 768px) {
  .nav-search { display: none; }
  .nav-links { display: none; }
  .nav-burger { display: flex; }
  .nav-cta { display: none; }
  .compare-grid { grid-template-columns: 1fr; gap: 20px; }
  .compare-badge { width: 64px; height: 64px; margin: 0 auto; }
  .compare-badge .big { font-size: 18px; }
  .faq-wrap { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr; }
  .scenarios-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .service-card.span-2 { grid-column: span 1; }
  .service-guide { grid-column: span 1; }
}
@media (max-width: 520px) {
  .header .nav { height: 64px; }
  .mobile-menu { top: 64px; }
  .page-hero { padding-top: 140px; }
  .page-hero-actions .btn-primary, .page-hero-actions .btn-outline { width: 100%; }
  .hero-float { display: none; }
  .panel-metrics { grid-template-columns: 1fr 1fr; padding: 0; gap: 0; }
  .panel-metric { padding: 16px; }
  .form-row { flex-direction: column; gap: 0; }
  .form-row .form-group:last-child { flex: 1; }
  .footer-top { grid-template-columns: 1fr; gap: 24px; }
  .intro-card-side { border-left: none; padding-left: 0; flex: 1; }
}