:root {
  --site-primary: #1677ff;
  --site-primary-dark: #0958d9;
  --site-primary-light: #e6f4ff;
  --site-accent: #722ed1;
  --site-text: #1f2937;
  --site-muted: #6b7280;
  --site-border: #e5e7eb;
  --site-bg: #f5f8fc;
  --site-white: #ffffff;
  --site-shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
  --site-shadow-lg: 0 20px 60px rgba(15, 23, 42, 0.12);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body.site-page {
  margin: 0;
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--site-text);
  background: var(--site-bg);
  line-height: 1.6;
}

a { text-decoration: none; }

/* ========== 顶栏 ========== */
.site-topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  box-shadow: 0 1px 8px rgba(0, 0, 0, 0.04);
}

.site-topbar-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.site-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--site-text);
  font-weight: 700;
  font-size: 1.15rem;
  flex-shrink: 0;
}

.site-brand img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  object-fit: contain;
}

.site-menu {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-menu a {
  color: var(--site-muted);
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s;
}

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

.site-topbar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.site-btn i,
.site-scenario-thumb i,
.site-industry h3 i,
.site-map-pin i {
  display: inline-block;
  line-height: 1;
  font-style: normal;
}

.site-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 0.55rem 1.25rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.92rem;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

.site-btn-lg {
  padding: 0.75rem 2rem;
  font-size: 1rem;
  border-radius: 10px;
}

.site-btn-primary {
  color: #fff !important;
  background: var(--site-primary);
  box-shadow: 0 4px 14px rgba(22, 119, 255, 0.35);
}

.site-btn-primary:hover {
  background: var(--site-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(22, 119, 255, 0.4);
  color: #fff;
}

.site-btn-outline {
  color: var(--site-primary) !important;
  background: #fff;
  border: 1px solid var(--site-primary);
}

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

.site-btn-ghost {
  color: var(--site-muted) !important;
  background: transparent;
  border: 1px solid var(--site-border);
}

.site-btn-ghost:hover {
  color: var(--site-primary) !important;
  border-color: var(--site-primary);
}

.site-menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.4rem;
  color: var(--site-text);
  cursor: pointer;
  padding: 4px;
}

/* ========== Hero ========== */
.site-hero {
  position: relative;
  padding: 120px 24px 80px;
  overflow: hidden;
  background: linear-gradient(135deg, #e8f4ff 0%, #f0f5ff 40%, #f9f0ff 100%);
}

.site-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 50%, rgba(22, 119, 255, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(114, 46, 209, 0.06) 0%, transparent 40%);
  pointer-events: none;
}

.site-hero-inner {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.site-hero-text h2 {
  margin: 0 0 12px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--site-primary);
  letter-spacing: 0.02em;
}

.site-hero-text h1 {
  margin: 0 0 20px;
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  line-height: 1.25;
  color: #111827;
}

.site-hero-text h1 em {
  font-style: normal;
  color: var(--site-primary);
}

.site-hero-desc {
  margin: 0 0 12px;
  font-size: 1.05rem;
  color: var(--site-muted);
  line-height: 1.8;
}

.site-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.site-hero-visual {
  position: relative;
}

.site-map-mock {
  background: var(--site-white);
  border-radius: 16px;
  box-shadow: var(--site-shadow-lg);
  overflow: hidden;
  border: 1px solid var(--site-border);
}

.site-map-mock-header {
  padding: 12px 16px;
  background: #fafafa;
  border-bottom: 1px solid var(--site-border);
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--site-muted);
}

.site-map-mock-dots {
  display: flex;
  gap: 5px;
}

.site-map-mock-dots span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #d1d5db;
}

.site-map-mock-body {
  position: relative;
  height: 340px;
  background:
    linear-gradient(rgba(22, 119, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(22, 119, 255, 0.04) 1px, transparent 1px),
    linear-gradient(160deg, #dbeafe 0%, #eff6ff 50%, #f0fdf4 100%);
  background-size: 32px 32px, 32px 32px, 100% 100%;
}

.site-map-pin {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  animation: pinFloat 3s ease-in-out infinite;
}

.site-map-pin:nth-child(1) { top: 18%; left: 22%; animation-delay: 0s; }
.site-map-pin:nth-child(2) { top: 45%; left: 55%; animation-delay: 0.5s; }
.site-map-pin:nth-child(3) { top: 62%; left: 28%; animation-delay: 1s; }
.site-map-pin:nth-child(4) { top: 30%; left: 72%; animation-delay: 1.5s; }

.site-map-pin i {
  font-size: 1.8rem;
  color: #ef4444;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.2));
}

.site-map-pin span {
  margin-top: 4px;
  padding: 2px 8px;
  background: rgba(255,255,255,0.95);
  border-radius: 4px;
  font-size: 0.72rem;
  color: var(--site-text);
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  white-space: nowrap;
}

@keyframes pinFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

.site-map-card-float {
  position: absolute;
  bottom: 16px;
  right: 16px;
  left: 16px;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(8px);
  border-radius: 12px;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.1);
  border: 1px solid rgba(255,255,255,0.8);
}

.site-map-card-float img {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  object-fit: contain;
}

.site-map-card-float strong {
  display: block;
  font-size: 0.95rem;
}

.site-map-card-float small {
  color: var(--site-muted);
  font-size: 0.8rem;
}

/* ========== 通用区块 ========== */
.site-section {
  padding: 72px 24px;
}

.site-section-alt {
  background: var(--site-white);
}

.site-section-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.site-section-head {
  text-align: center;
  margin-bottom: 48px;
}

.site-section-head h2 {
  margin: 0 0 12px;
  font-size: clamp(1.6rem, 3vw, 2rem);
  font-weight: 800;
  color: #111827;
}

.site-section-head p {
  margin: 0;
  color: var(--site-muted);
  font-size: 1rem;
}

/* ========== 功能特性网格（对标兰图绘） ========== */
.site-feature-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 20px;
}

.site-feature-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 24px 12px;
  background: var(--site-white);
  border: 1px solid var(--site-border);
  border-radius: 14px;
  transition: all 0.25s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.site-feature-item:hover {
  transform: translateY(-3px);
  border-color: rgba(22, 119, 255, 0.35);
  box-shadow: 0 8px 24px rgba(22, 119, 255, 0.12);
}

.site-feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #e6f4ff 0%, #f0f5ff 100%);
  border: 1px solid rgba(22, 119, 255, 0.15);
}

.site-feature-icon i {
  font-size: 1.45rem;
  color: var(--site-primary);
  line-height: 1;
}

.site-feature-item span {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--site-text);
  text-align: center;
}

/* 旧版标签样式保留备用 */
.site-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

.site-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  background: var(--site-white);
  border: 1px solid var(--site-border);
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--site-text);
  transition: all 0.2s ease;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.site-tag i {
  color: var(--site-primary);
  font-size: 0.95rem;
  width: 1.1em;
  text-align: center;
}

/* ========== 场景卡片 ========== */
.site-scenarios {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.site-scenario {
  background: var(--site-white);
  border: 1px solid var(--site-border);
  border-radius: 16px;
  overflow: hidden;
  transition: all 0.25s ease;
  box-shadow: var(--site-shadow);
}

.site-scenario:hover {
  transform: translateY(-4px);
  box-shadow: var(--site-shadow-lg);
  border-color: rgba(22, 119, 255, 0.3);
}

.site-scenario-thumb {
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: #fff;
}

.site-scenario-thumb.c1 { background: linear-gradient(135deg, #1677ff, #69b1ff); }
.site-scenario-thumb.c2 { background: linear-gradient(135deg, #722ed1, #b37feb); }
.site-scenario-thumb.c3 { background: linear-gradient(135deg, #13c2c2, #5cdbd3); }
.site-scenario-thumb.c4 { background: linear-gradient(135deg, #fa8c16, #ffc069); }
.site-scenario-thumb.c5 { background: linear-gradient(135deg, #eb2f96, #ff85c0); }
.site-scenario-thumb.c6 { background: linear-gradient(135deg, #52c41a, #95de64); }

.site-scenario-body {
  padding: 20px 22px 24px;
}

.site-scenario-body h3 {
  margin: 0 0 10px;
  font-size: 1.05rem;
  font-weight: 700;
}

.site-scenario-body p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--site-muted);
  line-height: 1.7;
}

/* ========== 行业应用 ========== */
.site-industries {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.site-industry {
  background: var(--site-bg);
  border: 1px solid var(--site-border);
  border-radius: 14px;
  padding: 24px;
  transition: border-color 0.2s;
}

.site-industry:hover {
  border-color: rgba(22, 119, 255, 0.35);
}

.site-industry h3 {
  margin: 0 0 14px;
  font-size: 1.05rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}

.site-industry h3 i {
  color: var(--site-primary);
}

.site-industry ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-industry li {
  position: relative;
  padding-left: 16px;
  margin-bottom: 8px;
  font-size: 0.88rem;
  color: var(--site-muted);
  line-height: 1.6;
}

.site-industry li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--site-primary);
}

/* ========== 数据统计条 ========== */
.site-stats {
  padding: 48px 24px;
  background: linear-gradient(135deg, #1677ff 0%, #0958d9 100%);
  color: #fff;
}

.site-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.site-stat {
  text-align: center;
}

.site-stat strong {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 4px;
}

.site-stat span {
  font-size: 0.9rem;
  opacity: 0.85;
}

/* ========== 底部 CTA ========== */
.site-cta-banner {
  text-align: center;
  padding: 64px 24px;
  background: linear-gradient(135deg, #f0f5ff 0%, #f9f0ff 100%);
}

.site-cta-banner h2 {
  margin: 0 0 12px;
  font-size: 1.8rem;
  font-weight: 800;
}

.site-cta-banner p {
  margin: 0 0 28px;
  color: var(--site-muted);
  font-size: 1.05rem;
}

/* ========== 页脚 ========== */
.site-footer {
  background: #111827;
  color: #9ca3af;
  padding: 40px 24px 32px;
}

.site-footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}

.site-footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-weight: 600;
}

.site-footer-brand img {
  width: 32px;
  height: 32px;
  border-radius: 6px;
}

.site-footer-links {
  display: flex;
  gap: 24px;
}

.site-footer-links a {
  color: #9ca3af;
  font-size: 0.9rem;
  transition: color 0.2s;
}

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

.site-footer-copy {
  width: 100%;
  text-align: center;
  padding-top: 24px;
  margin-top: 8px;
  border-top: 1px solid rgba(255,255,255,0.08);
  font-size: 0.85rem;
}

.site-footer-copy a {
  color: #60a5fa;
}

/* ========== 响应式 ========== */
@media (max-width: 991.98px) {
  .site-menu { display: none; }
  .site-menu-toggle { display: block; }

  .site-menu.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: #fff;
    padding: 16px 24px;
    border-bottom: 1px solid var(--site-border);
    gap: 16px;
  }

  .site-hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .site-hero-actions { justify-content: center; }
  .site-scenarios { grid-template-columns: repeat(2, 1fr); }
  .site-feature-grid { grid-template-columns: repeat(3, 1fr); }
  .site-industries { grid-template-columns: 1fr; }
  .site-stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 575.98px) {
  .site-hero { padding: 100px 16px 60px; }
  .site-section { padding: 56px 16px; }
  .site-scenarios { grid-template-columns: 1fr; }
  .site-feature-grid { grid-template-columns: repeat(2, 1fr); }
  .site-topbar-actions .site-btn-ghost { display: none; }
  .site-map-mock-body { height: 260px; }
}