/* =============================================
   CSS 变量 & 主题
   ============================================= */
:root {
  --color-primary: #29ABE2;
  --color-secondary: #3DC98B;
  --color-accent: #52E0B5;
  --color-primary-light: #1E90D4;
  --color-secondary-light: #5DEAB8;
  --gradient-main: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  --gradient-hero: linear-gradient(135deg, #051828 0%, #093857 40%, #0a3040 100%);
  --gradient-card: linear-gradient(145deg, rgba(41,171,226,0.08) 0%, rgba(61,201,139,0.08) 100%);
  --gradient-glow: linear-gradient(135deg, rgba(41,171,226,0.3), rgba(61,201,139,0.3));
  --color-dark: #041218;
  --color-dark-2: #081828;
  --color-dark-3: #0a1e3a;
  --color-text: #1a1f36;
  --color-text-muted: #5a6279;
  --color-text-light: #8893a8;
  --color-bg: #f8fafd;
  --color-bg-alt: #f0f4f9;
  --color-white: #ffffff;
  --color-border: rgba(41,171,226,0.12);
  --border-radius: 16px;
  --border-radius-sm: 10px;
  --border-radius-lg: 24px;
  --shadow-sm: 0 2px 12px rgba(41,171,226,0.08);
  --shadow-md: 0 8px 32px rgba(41,171,226,0.12);
  --shadow-lg: 0 20px 60px rgba(41,171,226,0.18);
  --shadow-glow: 0 0 40px rgba(61,201,139,0.25);
  --font-family: 'Inter', -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-size-base: 16px;
  --nav-height: 72px;
  --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
  --transition-slow: all 0.6s cubic-bezier(0.4,0,0.2,1);
}

/* =============================================
   Reset & Base
   ============================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: var(--nav-height); font-size: var(--font-size-base); }
body {
  font-family: var(--font-family);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, select, textarea { font-family: inherit; }

/* =============================================
   导航栏
   ============================================= */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: rgba(5,14,31,0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(61,201,139,0.12);
  transition: var(--transition);
}
#navbar.scrolled {
  background: rgba(5,14,31,0.97);
  box-shadow: 0 4px 30px rgba(0,0,0,0.3);
}
.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 40px;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 40px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon { flex-shrink: 0; display: flex; align-items: center; }
.logo-icon img { height: 36px; width: auto; display: block; border-radius: 4px; }
footer .logo-icon img { height: 32px; }
.company-name {
  font-size: 16px;
  font-weight: 700;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  white-space: nowrap;
}
.nav-links {
  display: flex;
  gap: 8px;
  margin-left: auto;
}
.nav-links a {
  color: rgba(255,255,255,0.75);
  font-size: 14.5px;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 8px;
  transition: var(--transition);
  position: relative;
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--color-secondary);
  background: rgba(61,201,139,0.08);
}
.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  background: var(--gradient-main);
  border-radius: 2px;
}
.nav-cta {
  background: var(--gradient-main);
  color: white !important;
  padding: 9px 22px !important;
  border-radius: 50px !important;
  font-size: 14px !important;
  font-weight: 600 !important;
  transition: var(--transition) !important;
  flex-shrink: 0;
  box-shadow: 0 4px 15px rgba(61,201,139,0.3);
}
.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 25px rgba(61,201,139,0.45) !important;
}
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  margin-left: auto;
}
.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: white;
  border-radius: 2px;
  transition: var(--transition);
}

/* =============================================
   按钮
   ============================================= */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--gradient-main);
  color: white;
  padding: 13px 30px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(61,201,139,0.35);
  border: none;
  cursor: pointer;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(61,201,139,0.5);
}
.btn-primary.large { padding: 16px 40px; font-size: 16px; }
.btn-primary.full { width: 100%; justify-content: center; }

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--color-secondary);
  padding: 12px 28px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  border: 1.5px solid var(--color-secondary);
  transition: var(--transition);
}
.btn-outline:hover {
  background: rgba(61,201,139,0.1);
  transform: translateY(-2px);
}
.btn-outline.light {
  color: white;
  border-color: rgba(255,255,255,0.4);
}
.btn-outline.light:hover {
  background: rgba(255,255,255,0.1);
  border-color: white;
}
.btn-outline.large { padding: 15px 38px; font-size: 16px; }

/* =============================================
   Hero 区（首页）
   ============================================= */
.hero {
  min-height: 100vh;
  background: var(--gradient-hero);
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: calc(var(--nav-height) + 60px) 40px 80px;
}
#particle-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
.hero-bg-shapes { position: absolute; inset: 0; overflow: hidden; pointer-events: none; }
.shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.15;
  animation: shapeFloat 8s ease-in-out infinite;
}
.shape-1 {
  width: 600px; height: 600px;
  background: var(--color-primary);
  top: -200px; right: -100px;
  animation-delay: 0s;
}
.shape-2 {
  width: 400px; height: 400px;
  background: var(--color-secondary);
  bottom: -100px; left: 20%;
  animation-delay: 3s;
}
.shape-3 {
  width: 300px; height: 300px;
  background: var(--color-accent);
  top: 30%; left: 5%;
  animation-delay: 5s;
  opacity: 0.08;
}
@keyframes shapeFloat {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-30px) scale(1.05); }
}

.hero > * { position: relative; z-index: 1; }
.hero {
  max-width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-left: 40px;
  padding-right: 40px;
}
.hero-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  max-width: 880px;
  width: 100%;
}
.hero-visual { display: flex; align-items: center; justify-content: center; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(61,201,139,0.12);
  border: 1px solid rgba(61,201,139,0.25);
  color: var(--color-secondary);
  padding: 8px 18px;
  border-radius: 50px;
  font-size: 13.5px;
  font-weight: 500;
  margin-bottom: 32px;
}
.badge-dot {
  width: 8px; height: 8px;
  background: var(--color-secondary);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-title {
  font-size: clamp(42px, 5vw, 68px);
  font-weight: 800;
  line-height: 1.15;
  color: white;
  margin-bottom: 20px;
  background: linear-gradient(135deg, #ffffff 30%, var(--color-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: 22px;
  font-weight: 500;
  color: var(--color-secondary);
  margin-bottom: 24px;
}
.hero-desc {
  font-size: 16.5px;
  color: rgba(255,255,255,0.7);
  line-height: 1.8;
  max-width: 640px;
  margin: 0 auto 40px;
}
.hero-btns {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 56px;
}
.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
}
.stat-item { text-align: center; }
.stat-num {
  font-size: 30px;
  font-weight: 800;
  color: white;
  line-height: 1;
}
.stat-num em {
  font-style: normal;
  font-size: 18px;
  color: var(--color-secondary);
  margin-left: 2px;
}
.stat-label {
  font-size: 12.5px;
  color: rgba(255,255,255,0.5);
  margin-top: 4px;
}
.stat-divider {
  width: 1px;
  height: 40px;
  background: rgba(255,255,255,0.15);
}

/* Dashboard Mockup */
.hero-visual { display: flex; align-items: stretch; justify-content: center; }
.dashboard-mockup {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(61,201,139,0.2);
  border-radius: 20px;
  padding: 0;
  overflow: hidden;
  width: 100%;
  max-width: 480px;
  height: 100%;
  display: flex;
  flex-direction: column;
  box-shadow: 0 30px 80px rgba(0,0,0,0.4), 0 0 60px rgba(61,201,139,0.1);
  animation: floatMockup 6s ease-in-out infinite;
}
@keyframes floatMockup {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
.mockup-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 20px;
  background: rgba(255,255,255,0.04);
  border-bottom: 1px solid rgba(61,201,139,0.1);
}
.dot { width: 12px; height: 12px; border-radius: 50%; }
.dot.red { background: #ff5f57; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #28c840; }
.mockup-title {
  margin-left: 8px;
  font-size: 13px;
  color: rgba(255,255,255,0.6);
}
.mockup-body { padding: 24px; flex: 1; display: flex; flex-direction: column; justify-content: center; }
.mockup-chart { margin-bottom: 20px; }
.chart-bars {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  height: 100px;
  margin-bottom: 8px;
}
.bar {
  flex: 1;
  background: linear-gradient(to top, rgba(41,171,226,0.4), rgba(61,201,139,0.3));
  border-radius: 4px 4px 0 0;
  transition: var(--transition);
  border: 1px solid rgba(61,201,139,0.15);
}
.bar.active {
  background: linear-gradient(to top, var(--color-primary), var(--color-secondary));
  box-shadow: 0 0 20px rgba(61,201,139,0.4);
}
.chart-label {
  font-size: 11px;
  color: rgba(255,255,255,0.4);
  text-align: center;
}
.mockup-metrics {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 16px;
}
.metric-card {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(61,201,139,0.1);
  border-radius: 10px;
  padding: 10px 14px;
}
.metric-icon { font-size: 18px; }
.metric-val {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-secondary);
}
.metric-name { font-size: 11px; color: rgba(255,255,255,0.5); }
.mockup-platforms {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.platform-tag {
  background: rgba(61,201,139,0.1);
  border: 1px solid rgba(61,201,139,0.2);
  color: var(--color-secondary);
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 12px;
}

/* =============================================
   通用 Section 样式
   ============================================= */
.section {
  padding: 100px 0;
  position: relative;
}
.section-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 40px;
}
.section-header {
  text-align: center;
  margin-bottom: 64px;
}
.section-header.light h2,
.section-header.light p { color: white; }
.section-header.light p { color: rgba(255,255,255,0.65); }
.section-tag {
  display: inline-block;
  background: linear-gradient(135deg, rgba(41,171,226,0.1), rgba(61,201,139,0.1));
  border: 1px solid rgba(61,201,139,0.25);
  color: var(--color-secondary);
  padding: 5px 16px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 16px;
}
.section-header h2 {
  font-size: clamp(30px, 4vw, 44px);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--color-text) 40%, var(--color-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-header p {
  font-size: 17px;
  color: var(--color-text-muted);
  max-width: 560px;
  margin: 0 auto;
}
.dark-section {
  background: var(--gradient-hero);
}
.dark-section .section-tag {
  background: rgba(61,201,139,0.15);
}

/* =============================================
   特性卡片
   ============================================= */
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.feature-card {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: 32px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-card);
  opacity: 0;
  transition: var(--transition);
}
.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(61,201,139,0.3);
}
.feature-card:hover::before { opacity: 1; }
.feature-icon {
  width: 56px; height: 56px;
  border-radius: 14px;
  margin-bottom: 20px;
  position: relative;
}
.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 12px;
}
.feature-card p {
  font-size: 14.5px;
  color: var(--color-text-muted);
  line-height: 1.7;
}
.feature-num {
  position: absolute;
  top: 24px;
  right: 28px;
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  opacity: 0.18;
  line-height: 1;
  font-family: 'Inter', sans-serif;
}

/* =============================================
   平台流程图
   ============================================= */
.platforms { overflow: hidden; }
.platform-flow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
}
.flow-sources, .flow-targets {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.source-item, .target-item {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(61,201,139,0.15);
  border-radius: var(--border-radius);
  padding: 18px 24px;
  display: flex;
  align-items: center;
  gap: 14px;
  transition: var(--transition);
  min-width: 180px;
}
.source-item:hover, .target-item:hover {
  background: rgba(61,201,139,0.1);
  border-color: rgba(61,201,139,0.35);
  transform: translateX(4px);
}
.source-icon, .target-icon { font-size: 24px; }
.source-name, .target-name {
  font-size: 15px;
  font-weight: 600;
  color: white;
}
.source-desc, .target-desc {
  font-size: 12px;
  color: rgba(255,255,255,0.5);
  margin-top: 2px;
}
.flow-arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}
.arrow-line {
  width: 2px;
  height: 50px;
  background: linear-gradient(to bottom, transparent, var(--color-secondary), transparent);
}
.flow-center {
  background: var(--gradient-main);
  border-radius: 50%;
  width: 100px;
  height: 100px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-glow);
  animation: pulse-center 3s ease-in-out infinite;
}
@keyframes pulse-center {
  0%, 100% { box-shadow: 0 0 30px rgba(61,201,139,0.3); }
  50% { box-shadow: 0 0 60px rgba(61,201,139,0.6); }
}
.flow-center-icon { font-size: 28px; }
.flow-center-text { font-size: 11px; color: white; font-weight: 600; margin-top: 4px; text-align: center; }

/* =============================================
   数字统计
   ============================================= */
.numbers {
  background: linear-gradient(135deg, rgba(41,171,226,0.04), rgba(61,201,139,0.04));
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.numbers-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.number-item {
  text-align: center;
  padding: 40px 20px;
  position: relative;
}
.number-item::after {
  content: '';
  position: absolute;
  right: 0;
  top: 25%;
  height: 50%;
  width: 1px;
  background: var(--color-border);
}
.number-item:last-child::after { display: none; }
.number-val {
  display: inline;
  font-size: 52px;
  font-weight: 900;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}
.number-suffix {
  display: inline;
  font-size: 28px;
  font-weight: 700;
  color: var(--color-secondary);
  margin-left: 2px;
}
.number-label {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-top: 10px;
}

/* =============================================
   CTA 区
   ============================================= */
.cta-section {
  position: relative;
  overflow: hidden;
  background: var(--gradient-hero);
  padding: 100px 0;
}
.cta-bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(61,201,139,0.2) 0%, transparent 60%),
              radial-gradient(ellipse at 70% 50%, rgba(41,171,226,0.3) 0%, transparent 60%);
}
.cta-content {
  position: relative;
  text-align: center;
  z-index: 1;
}
.cta-content h2 {
  font-size: clamp(30px, 4vw, 44px);
  font-weight: 800;
  color: white;
  margin-bottom: 16px;
}
.cta-content p {
  font-size: 18px;
  color: rgba(255,255,255,0.7);
  margin-bottom: 40px;
}
.cta-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* =============================================
   页面内页 Hero
   ============================================= */
.page-hero {
  background: var(--gradient-hero);
  padding: calc(var(--nav-height) + 80px) 0 80px;
  position: relative;
  overflow: hidden;
}
.page-hero-bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 60% 50%, rgba(61,201,139,0.15) 0%, transparent 60%),
              radial-gradient(ellipse at 20% 80%, rgba(41,171,226,0.2) 0%, transparent 50%);
}
.page-hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
}
.page-hero-content h1 {
  font-size: clamp(36px, 5vw, 60px);
  font-weight: 800;
  color: white;
  margin: 16px 0 12px;
}
.page-hero-content p {
  font-size: 18px;
  color: rgba(255,255,255,0.65);
}
.page-hero-content .section-tag {
  background: rgba(61,201,139,0.15);
  color: var(--color-secondary);
}

/* =============================================
   解决方案页 - Tabs
   ============================================= */
.solution-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 48px;
}
.tab-btn {
  padding: 12px 24px;
  border-radius: 50px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--color-text-muted);
  background: white;
  border: 1.5px solid var(--color-border);
  transition: var(--transition);
}
.tab-btn:hover,
.tab-btn.active {
  background: var(--gradient-main);
  color: white;
  border-color: transparent;
  box-shadow: 0 4px 20px rgba(61,201,139,0.3);
}
.tab-content { display: none; }
.tab-content.active { display: block; }
.tab-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.tab-info h3 {
  font-size: 30px;
  font-weight: 800;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--color-text), var(--color-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.tab-info p {
  color: var(--color-text-muted);
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 24px;
}
.feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 32px;
}
.feature-list li {
  font-size: 15px;
  color: var(--color-text);
  padding: 8px 0;
  border-bottom: 1px solid var(--color-border);
}

/* =============================================
   解决方案六大自动化卡片
   ============================================= */
.solution-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.sol-card {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: 32px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.sol-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-card);
  opacity: 0;
  transition: var(--transition);
}
.sol-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(61,201,139,0.3);
}
.sol-card:hover::before { opacity: 1; }
.sol-num {
  position: absolute;
  top: 24px;
  right: 28px;
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  opacity: 0.18;
  line-height: 1;
  font-family: 'Inter', sans-serif;
}
.sol-icon {
  width: 56px; height: 56px;
  border-radius: 14px;
  margin-bottom: 20px;
  position: relative;
}
.sol-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 12px;
}
.sol-card p {
  font-size: 14.5px;
  color: var(--color-text-muted);
  line-height: 1.7;
}
.visual-card {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: 28px;
  box-shadow: var(--shadow-md);
}
.visual-header {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-text-muted);
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.visual-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 20px;
}
.vs-item { text-align: center; }
.vs-label { font-size: 11px; color: var(--color-text-light); margin-bottom: 4px; }
.vs-val { font-size: 22px; font-weight: 800; color: var(--color-text); }
.vs-val.primary {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.visual-chart { border-top: 1px solid var(--color-border); padding-top: 16px; }
.mini-bars {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  height: 70px;
}
.mini-bar {
  flex: 1;
  background: linear-gradient(to top, rgba(41,171,226,0.2), rgba(61,201,139,0.2));
  border-radius: 3px 3px 0 0;
}
.mini-bar.active {
  background: var(--gradient-main);
}
.content-types { display: flex; flex-direction: column; gap: 14px; }
.content-type {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13.5px;
}
.content-type span:first-child { min-width: 80px; color: var(--color-text-muted); }
.progress-bar {
  flex: 1;
  height: 8px;
  background: var(--color-bg-alt);
  border-radius: 4px;
  overflow: hidden;
}
.progress {
  height: 100%;
  background: var(--gradient-main);
  border-radius: 4px;
  transition: width 1s ease;
}
.content-type span:last-child { font-weight: 600; color: var(--color-primary); min-width: 40px; text-align: right; }
.data-circles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  text-align: center;
}
.data-circle { padding: 16px 8px; }
.circle-val { font-size: 20px; font-weight: 800; background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.circle-label { font-size: 12px; color: var(--color-text-light); margin-top: 4px; }
.private-stats { display: flex; flex-direction: column; gap: 14px; }
.ps-item { display: flex; align-items: center; gap: 14px; padding: 12px; background: var(--color-bg-alt); border-radius: 10px; }
.ps-icon { font-size: 20px; }
.ps-val { font-size: 18px; font-weight: 700; color: var(--color-primary); }
.ps-label { font-size: 12px; color: var(--color-text-light); }

/* =============================================
   流程步骤
   ============================================= */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.process-step {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(61,201,139,0.15);
  border-radius: var(--border-radius);
  padding: 28px 22px 22px;
  text-align: center;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.process-step:hover {
  background: rgba(61,201,139,0.1);
  transform: translateY(-4px);
  border-color: rgba(61,201,139,0.4);
}
.step-top { margin-bottom: 20px; }
.step-num { font-size: 11px; font-weight: 700; color: var(--color-secondary); letter-spacing: 1px; margin-bottom: 12px; }
.step-icon { font-size: 32px; margin-bottom: 14px; display: flex; align-items: center; justify-content: center; }
.process-step h3 { font-size: 16px; font-weight: 700; color: white; margin-bottom: 10px; }
.process-step p { font-size: 13.5px; color: rgba(255,255,255,0.6); line-height: 1.6; }
.step-screenshot {
  margin-top: auto;
  border-radius: 12px;
  overflow: hidden;
  background: rgba(0,0,0,0.3);
  border: 1px solid rgba(61,201,139,0.18);
  box-shadow: 0 8px 24px rgba(0,0,0,0.35);
  aspect-ratio: 750 / 1334;
  display: flex;
  align-items: center;
  justify-content: center;
}
.step-screenshot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  display: block;
}

/* =============================================
   产品架构三层能力
   ============================================= */
.architecture {
  background: var(--color-bg);
  position: relative;
}
.architecture::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 0%, rgba(41,171,226,0.06) 0%, transparent 60%);
  pointer-events: none;
}
.arch-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  position: relative;
  z-index: 1;
}
.arch-card {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: 32px 28px 28px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.arch-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(41,171,226,0.25);
}
.arch-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--gradient-main);
  opacity: 0.8;
}
.arch-badge {
  display: inline-block;
  align-self: flex-start;
  background: linear-gradient(135deg, rgba(41,171,226,0.1), rgba(61,201,139,0.1));
  border: 1px solid rgba(61,201,139,0.25);
  color: var(--color-secondary);
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 700;
  margin-bottom: 18px;
  letter-spacing: 1px;
}
.arch-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(41,171,226,0.12), rgba(61,201,139,0.12));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}
.arch-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 6px;
}
.arch-role {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 12px;
  letter-spacing: 0.5px;
}
.arch-desc {
  font-size: 14.5px;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 24px;
}
.arch-visual {
  margin-top: auto;
  border-radius: 12px;
  overflow: hidden;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  aspect-ratio: 4 / 3;
  display: flex;
  align-items: center;
  justify-content: center;
}
.arch-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  display: block;
}
.arch-visual-svg {
  background: linear-gradient(145deg, rgba(41,171,226,0.08), rgba(61,201,139,0.08));
  padding: 18px;
}
.arch-server-svg {
  width: 100%;
  height: 100%;
  max-width: 280px;
}
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  max-width: 960px;
  margin: 0 auto;
}
.pricing-card {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: 40px 32px;
  position: relative;
  transition: var(--transition);
}
.pricing-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.pricing-card.featured {
  background: var(--gradient-hero);
  border-color: rgba(61,201,139,0.4);
  box-shadow: 0 20px 60px rgba(61,201,139,0.2);
}
.plan-badge {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-main);
  color: white;
  padding: 4px 20px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 700;
}
.plan-name { font-size: 18px; font-weight: 700; margin-bottom: 16px; color: var(--color-text); }
.pricing-card.featured .plan-name { color: white; }
.plan-price { font-size: 36px; font-weight: 900; color: var(--color-primary); margin-bottom: 8px; }
.pricing-card.featured .plan-price { color: var(--color-secondary); }
.plan-price span { font-size: 16px; font-weight: 500; color: var(--color-text-muted); }
.pricing-card.featured .plan-price span { color: rgba(255,255,255,0.5); }
.plan-note { font-size: 13px; color: var(--color-secondary); margin-top: -4px; margin-bottom: 16px; font-weight: 500; letter-spacing: 0.5px; }
.pricing-card.featured .plan-note { color: var(--color-secondary); }
.plan-features { display: flex; flex-direction: column; gap: 10px; margin: 24px 0 32px; }
.plan-features li { font-size: 14px; color: var(--color-text); }
.pricing-card.featured .plan-features li { color: rgba(255,255,255,0.8); }
.plan-features li.disabled { color: var(--color-text-light) !important; }
.pricing-card.featured .btn-outline { border-color: rgba(255,255,255,0.3); color: white; }

/* =============================================
   关于我们页
   ============================================= */
.about-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.about-text p { color: var(--color-text-muted); line-height: 1.8; margin-bottom: 16px; }
.about-highlights { display: flex; flex-direction: column; gap: 16px; margin-top: 28px; }
.highlight-item { display: flex; align-items: center; gap: 16px; }
.highlight-icon { font-size: 28px; }
.highlight-title { font-size: 15px; font-weight: 700; color: var(--color-text); }
.highlight-desc { font-size: 13px; color: var(--color-text-muted); }
.about-card-stack { position: relative; height: 360px; }
.about-card {
  position: absolute;
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: 28px;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}
.about-card:hover { transform: scale(1.02); }
.main-card { width: 280px; top: 40px; left: 50px; z-index: 3; }
.side-card-1 { width: 220px; top: 0; right: 0; z-index: 2; background: linear-gradient(135deg, #f0f9ff, #e0f7f4); }
.side-card-2 { width: 220px; bottom: 0; left: 0; z-index: 2; background: linear-gradient(135deg, #f0f4ff, #e8f0fe); }
.ac-icon { font-size: 28px; margin-bottom: 12px; }
.ac-title { font-size: 16px; font-weight: 700; color: var(--color-text); margin-bottom: 8px; }
.ac-desc { font-size: 13.5px; color: var(--color-text-muted); line-height: 1.6; }

/* 时间线 */
.timeline-list { position: relative; max-width: 860px; margin: 0 auto; }
.timeline-item {
  display: grid;
  grid-template-columns: 88px 24px 1fr;
  column-gap: 14px;
  align-items: start;
}
.timeline-date {
  text-align: right;
  padding-top: 18px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.3px;
  color: var(--color-secondary);
  white-space: nowrap;
}
.timeline-rail {
  position: relative;
  display: flex;
  justify-content: center;
}
.timeline-rail::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: -44px;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  background: linear-gradient(to bottom, var(--color-primary), var(--color-secondary));
  opacity: 0.35;
}
.timeline-rail::after {
  content: '';
  position: relative;
  z-index: 1;
  margin-top: 20px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #0a3040;
  border: 3px solid var(--color-secondary);
  box-shadow: 0 0 0 4px rgba(61,201,139,0.12);
  transition: var(--transition);
}
.timeline-rail.active::after {
  background: var(--color-secondary);
  box-shadow: 0 0 14px rgba(61,201,139,0.7), 0 0 0 4px rgba(61,201,139,0.18);
}
.timeline-item:last-child .timeline-rail::before { display: none; }
.timeline-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(61,201,139,0.16);
  border-left: 3px solid var(--color-secondary);
  border-radius: 12px;
  padding: 18px 22px;
  margin-bottom: 44px;
  transition: var(--transition);
}
.timeline-card:hover {
  background: rgba(61,201,139,0.08);
  border-color: rgba(61,201,139,0.4);
  transform: translateX(4px);
}
.timeline-phase { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 8px; }
.timeline-card p { font-size: 14px; color: rgba(255,255,255,0.64); line-height: 1.75; }
@media (max-width: 640px) {
  .timeline-item { grid-template-columns: 62px 18px 1fr; column-gap: 10px; }
  .timeline-date { font-size: 13px; padding-top: 16px; }
  .timeline-rail::after { margin-top: 18px; width: 12px; height: 12px; }
  .timeline-card { padding: 14px 16px; margin-bottom: 32px; }
  .timeline-card p { font-size: 13px; }
}

/* 团队 */
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.team-card {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: 28px 24px;
  text-align: center;
  transition: var(--transition);
}
.team-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.team-avatar {
  width: 72px; height: 72px;
  border-radius: 50%;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  font-weight: 700;
  color: white;
}
.team-info h3 { font-size: 17px; font-weight: 700; margin-bottom: 4px; }
.team-title { font-size: 12.5px; color: var(--color-secondary); font-weight: 600; margin-bottom: 10px; line-height: 1.45; letter-spacing: 0.2px; }
.team-info p { font-size: 13px; color: var(--color-text-muted); line-height: 1.6; }

/* 荣誉 */
.honors-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.honor-item {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: 36px 24px;
  text-align: center;
  transition: var(--transition);
}
.honor-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: rgba(61,201,139,0.3); }
.honor-icon { font-size: 40px; margin-bottom: 16px; }
.honor-title { font-size: 15px; font-weight: 700; color: var(--color-text); margin-bottom: 8px; line-height: 1.4; }
.honor-year { font-size: 13px; color: var(--color-secondary); font-weight: 600; }

/* =============================================
   联系我们页
   ============================================= */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 64px;
  align-items: flex-start;
}
.contact-info h2 {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 28px;
  background: linear-gradient(135deg, var(--color-text), var(--color-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.contact-items { display: flex; flex-direction: column; gap: 20px; margin-bottom: 32px; }
.contact-item { display: flex; gap: 16px; align-items: flex-start; }
.ci-icon { font-size: 22px; flex-shrink: 0; }
.ci-label { font-size: 12px; color: var(--color-text-muted); font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 4px; }
.ci-val { font-size: 15px; color: var(--color-text); line-height: 1.6; }
.contact-wechat {
  display: flex;
  align-items: center;
  gap: 20px;
  background: linear-gradient(135deg, rgba(41,171,226,0.06), rgba(61,201,139,0.06));
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: 20px;
}
.qr-placeholder {
  width: 100px; height: 100px;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  overflow: hidden;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: white;
  padding: 4px;
}
.qr-placeholder img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  border-radius: 6px;
}
.wc-title { font-size: 15px; font-weight: 700; color: var(--color-text); margin-bottom: 4px; }
.wc-desc { font-size: 13px; color: var(--color-text-muted); }

/* 表单 */
.form-card {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: 44px;
  box-shadow: var(--shadow-md);
}
.form-card h2 {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 8px;
  background: linear-gradient(135deg, var(--color-text), var(--color-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.form-card > p {
  font-size: 14.5px;
  color: var(--color-text-muted);
  margin-bottom: 28px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 13.5px; font-weight: 600; color: var(--color-text); margin-bottom: 7px; }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 11px 16px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  font-size: 14.5px;
  color: var(--color-text);
  background: var(--color-bg);
  transition: var(--transition);
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-secondary);
  background: white;
  box-shadow: 0 0 0 3px rgba(61,201,139,0.1);
}
.form-error { color: #ff5470; font-size: 12.5px; margin-top: 6px; font-weight: 500; }
.form-msg { margin: 4px 0 14px; padding: 10px 14px; border-radius: var(--border-radius-sm); font-size: 13px; line-height: 1.6; background: #fff4f4; border: 1px solid #ffd6d6; color: #d63350; }
.form-group input.input-error,
.form-group input.input-error:focus {
  border-color: #ff5470;
  box-shadow: 0 0 0 3px rgba(255,84,112,0.12);
}
.checkbox-group { display: flex; flex-wrap: wrap; gap: 10px; }
.checkbox-item { display: flex; align-items: center; gap: 6px; font-size: 13.5px; cursor: pointer; }
.checkbox-item input { width: auto; accent-color: var(--color-secondary); }
.success-icon { font-size: 48px; text-align: center; margin-bottom: 16px; }
#form-success { text-align: center; padding: 40px 20px; }
#form-success h3 { font-size: 22px; font-weight: 700; margin-bottom: 8px; }
#form-success p { color: var(--color-text-muted); }

/* =============================================
   底部
   ============================================= */
#footer {
  background: var(--color-dark);
  border-top: 1px solid rgba(61,201,139,0.1);
  padding: 60px 0 0;
}
.footer-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 40px;
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 60px;
  padding-bottom: 48px;
}
.footer-brand .company-name { color: white; }
.footer-brand p { font-size: 14px; color: rgba(255,255,255,0.4); margin-top: 12px; }
.footer-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.footer-col h4 { font-size: 14px; font-weight: 700; color: white; margin-bottom: 16px; }
.footer-col a {
  display: block;
  font-size: 13.5px;
  color: rgba(255,255,255,0.45);
  margin-bottom: 10px;
  transition: var(--transition);
}
.footer-col a:hover { color: var(--color-secondary); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 20px 40px;
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  font-size: 12.5px;
  color: rgba(255,255,255,0.25);
}

/* =============================================
   动画
   ============================================= */
.animate-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease calc(var(--delay, 0s)), transform 0.6s ease calc(var(--delay, 0s));
}
.animate-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* =============================================
   响应式
   ============================================= */
@media (max-width: 1100px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .solution-cards { grid-template-columns: repeat(2, 1fr); }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .honors-grid { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .arch-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  .hero {
    padding-left: 24px;
    padding-right: 24px;
  }
  .tab-inner { grid-template-columns: 1fr; }
  .about-split { grid-template-columns: 1fr; }
  .about-card-stack { display: none; }
  .contact-layout { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 400px; }
  .numbers-grid { grid-template-columns: repeat(2, 1fr); }
  .numbers-grid .number-item:nth-child(even)::after { display: none; }
}
@media (max-width: 768px) {
  :root { --nav-height: 64px; }
  .nav-links, .nav-cta { display: none; }
  .nav-hamburger { display: flex; }
  .section { padding: 64px 0; }
  .section-container { padding: 0 20px; }
  .features-grid { grid-template-columns: 1fr; }
  .solution-cards { grid-template-columns: 1fr; }
  .platform-flow { flex-direction: column; }
  .flow-arrow { flex-direction: row; }
  .arrow-line { width: 50px; height: 2px; }
  .process-steps { grid-template-columns: 1fr; }
  .arch-grid { grid-template-columns: 1fr; }
  .footer-container { grid-template-columns: 1fr; gap: 32px; }
  .footer-links { grid-template-columns: repeat(3, 1fr); }
  .form-row { grid-template-columns: 1fr; }
  .form-card { padding: 28px 20px; }
  .nav-links.open { display: flex; flex-direction: column; position: absolute; top: var(--nav-height); left: 0; right: 0; background: rgba(5,14,31,0.97); padding: 20px; border-bottom: 1px solid rgba(61,201,139,0.1); }
}

/* =============================================
   首页 · 四大核心业务（2026-09 重构）
   ============================================= */
.business { background: var(--color-bg); position: relative; overflow: hidden; }
.business::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 15% 10%, rgba(41,171,226,0.06) 0%, transparent 45%),
              radial-gradient(circle at 85% 90%, rgba(61,201,139,0.07) 0%, transparent 45%);
  pointer-events: none;
}
.biz-grid {
  display: flex;
  flex-direction: column;
  gap: 40px;
  position: relative;
  z-index: 1;
}
.biz-row {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.biz-row:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); border-color: rgba(61,201,139,0.28); }
.biz-row.reverse .biz-media { order: 2; }
.biz-media {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 360px;
  padding: 30px;
  overflow: hidden;
  background:
    radial-gradient(120% 120% at 20% 0%, rgba(41,171,226,0.16) 0%, transparent 55%),
    radial-gradient(120% 120% at 100% 100%, rgba(61,201,139,0.14) 0%, transparent 55%),
    linear-gradient(150deg, #eef6fb 0%, #f2faf7 100%);
}
.biz-media::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(41,171,226,0.18) 1px, transparent 1px);
  background-size: 22px 22px;
  opacity: 0.35;
  pointer-events: none;
}
.biz-svg { width: 100%; max-width: 540px; height: auto; position: relative; z-index: 1; }
.biz-body {
  padding: 48px 46px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
}
.biz-num {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--color-secondary);
  background: linear-gradient(135deg, rgba(41,171,226,0.1), rgba(61,201,139,0.12));
  border: 1px solid rgba(61,201,139,0.28);
  padding: 5px 14px;
  border-radius: 50px;
  margin-bottom: 18px;
}
.biz-body h3 {
  font-size: clamp(23px, 2.5vw, 31px);
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--color-text) 35%, var(--color-primary) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.biz-body > p { color: var(--color-text-muted); font-size: 15px; line-height: 1.9; margin-bottom: 22px; }
.biz-points { list-style: none; display: flex; flex-direction: column; gap: 12px; margin-bottom: 26px; }
.biz-points li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text);
}
.biz-points li::before {
  content: '';
  flex-shrink: 0;
  margin-top: 7px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--gradient-main);
  box-shadow: 0 0 0 3px rgba(61,201,139,0.15);
}
.biz-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.biz-tag {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--color-primary);
  background: rgba(41,171,226,0.08);
  border: 1px solid rgba(41,171,226,0.18);
  padding: 6px 13px;
  border-radius: 50px;
}
.biz-tag.hot { color: var(--color-secondary); background: rgba(61,201,139,0.1); border-color: rgba(61,201,139,0.25); }
@media (max-width: 900px) {
  .biz-row, .biz-row.reverse { grid-template-columns: 1fr; }
  .biz-row.reverse .biz-media { order: 0; }
  .biz-media { min-height: 260px; padding: 22px; }
  .biz-body { padding: 34px 26px; }
}

/* =============================================
   词元工厂页 · 新样式
   ============================================= */
.tok-about-split {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 56px;
  align-items: center;
}
.tok-about-text p { color: var(--color-text-muted); line-height: 1.95; font-size: 15.5px; margin-bottom: 14px; }
.tok-about-text p:last-child { margin-bottom: 0; }
.tok-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.tok-stat {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: 24px 20px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.tok-stat:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.tok-stat b {
  display: block;
  font-size: 30px;
  font-weight: 900;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.2;
}
.tok-stat span { font-size: 13px; color: var(--color-text-muted); }

/* 合作大模型 logo 轮播条（关于词元工厂区块底部） */
.logo-marquee {
  position: relative;
  width: 100%;
  margin-top: 48px;
  padding: 18px 0;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(to right, transparent 0, #000 6%, #000 94%, transparent 100%);
          mask-image: linear-gradient(to right, transparent 0, #000 6%, #000 94%, transparent 100%);
}
.marquee-track {
  display: flex;
  width: max-content;
  animation: marquee-scroll var(--marquee-duration, 32s) linear infinite;
  will-change: transform;
}
.marquee-track:hover { animation-play-state: paused; }
.marquee-list {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
  margin: 0;
  padding: 0 12px;
  flex-shrink: 0;
}
.marquee-item {
  flex-shrink: 0;
  width: 136px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px 16px;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  background: rgba(255,255,255,0.7);
  backdrop-filter: blur(2px);
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.marquee-item:hover {
  transform: translateY(-2px);
  border-color: rgba(41,171,226,0.45);
  box-shadow: 0 6px 18px rgba(41,171,226,0.12);
}
.marquee-item img {
  display: block;
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: saturate(.92);
  opacity: .82;
  user-select: none;
  -webkit-user-drag: none;
  pointer-events: none;
}
.marquee-item:hover img { opacity: 1; }
@keyframes marquee-scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce) {
  .marquee-track { animation: none; transform: translateX(0); overflow-x: auto; }
}
@media (max-width: 768px) {
  .logo-marquee { margin-top: 32px; padding: 14px 0; }
  .marquee-list { gap: 14px; padding: 0 7px; }
  .marquee-item { width: 100px; height: 56px; padding: 8px 10px; border-radius: 10px; }
}
@media (max-width: 480px) {
  .marquee-item { width: 88px; height: 50px; }
}

/* 三层整体架构 */
.lay-stack { display: flex; flex-direction: column; gap: 16px; max-width: 980px; margin: 0 auto; }
.lay-row {
  display: flex;
  align-items: center;
  gap: 26px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: 26px 30px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.lay-row::before { content: ''; position: absolute; top: 0; left: 0; bottom: 0; width: 5px; background: var(--gradient-main); }
.lay-row:hover { transform: translateX(6px); box-shadow: var(--shadow-md); }
.lay-icon {
  width: 64px; height: 64px;
  flex-shrink: 0;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(41,171,226,0.12), rgba(61,201,139,0.14));
  display: flex; align-items: center; justify-content: center;
}
.lay-title { font-size: 19px; font-weight: 800; margin-bottom: 4px; color: var(--color-text); }
.lay-sub { font-size: 13px; font-weight: 700; color: var(--color-primary); letter-spacing: 0.6px; margin-bottom: 8px; }
.lay-desc { font-size: 14px; color: var(--color-text-muted); line-height: 1.7; }
.lay-arrow { flex-shrink: 0; color: var(--color-secondary); font-size: 22px; font-weight: 800; }
@media (max-width: 700px) {
  .lay-row { flex-direction: column; text-align: center; gap: 14px; align-items: center; }
  .lay-arrow { transform: rotate(90deg); }
}
/* 五层 AaaS 技术栈 */
.tech-stack { display: flex; flex-direction: column; gap: 10px; max-width: 1000px; margin: 0 auto; }
.stack-row {
  display: flex;
  align-items: center;
  gap: 18px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-left: 4px solid transparent;
  border-radius: 12px;
  padding: 14px 22px;
  transition: var(--transition);
}
.stack-row:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-left-color: var(--color-primary); }
.stack-name {
  min-width: 128px;
  font-size: 15.5px;
  font-weight: 800;
  color: var(--color-text);
  position: relative;
  padding-left: 18px;
}
.stack-name::before {
  content: '';
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--gradient-main);
}
.stack-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.stack-tags span {
  font-size: 12.5px;
  color: var(--color-text-muted);
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  padding: 5px 12px;
  border-radius: 50px;
}
.stack-tags span.gpu { color: var(--color-secondary); background: rgba(61,201,139,0.08); border-color: rgba(61,201,139,0.22); font-weight: 600; }
@media (max-width: 700px) {
  .stack-row { flex-direction: column; align-items: flex-start; gap: 10px; }
  .stack-name { min-width: 0; }
}
/* 词元工厂设备卡 */
.dev-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.dev-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: 32px 22px;
  text-align: center;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  overflow: hidden;
}
.dev-card::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 3px; background: var(--gradient-main); opacity: 0; transition: var(--transition); }
.dev-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: rgba(61,201,139,0.3); }
.dev-card:hover::after { opacity: 1; }
.dev-ic {
  width: 58px; height: 58px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(41,171,226,0.12), rgba(61,201,139,0.14));
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
}
.dev-name { font-size: 16.5px; font-weight: 800; color: var(--color-text); margin-bottom: 6px; }
.dev-brand { font-size: 12.5px; font-weight: 600; color: var(--color-primary); margin-bottom: 8px; }
.dev-desc { font-size: 13px; color: var(--color-text-muted); line-height: 1.6; }
.dev-badge {
  position: absolute;
  top: 14px; right: 14px;
  font-size: 11px;
  font-weight: 700;
  color: var(--color-secondary);
  background: rgba(61,201,139,0.1);
  border: 1px solid rgba(61,201,139,0.22);
  padding: 3px 10px;
  border-radius: 50px;
}

/* 设备卡 · 实物图（4:3 固定比例，统一视觉风格） */
.dev-media {
  position: relative;        /* 为图片绝对铺满提供定位基准 */
  width: 100%;
  aspect-ratio: 4 / 3;
  margin: 18px 0 16px;
  border-radius: var(--border-radius-sm);
  border: 1px solid var(--color-border);
  background: linear-gradient(145deg, rgba(41,171,226,0.06) 0%, rgba(61,201,139,0.08) 100%);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 图片完整铺满容器：宽高 100% + cover，等比填充不变形、不留白 */
.dev-img {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;               /* 铺满容器宽度 */
  height: 100%;              /* 铺满容器高度 */
  max-width: none;           /* 避免主题/框架的 max-width:100% 限制铺满 */
  object-fit: cover;         /* 等比例填充：不拉伸变形、不留白，超出部分居中裁切 */
  object-position: var(--dev-img-pos, center center); /* 可通过 --dev-img-pos 单独调整某张图的视觉焦点 */
  transition: var(--transition);
}

/* 老浏览器无 aspect-ratio 时仍有确定高度，保证 height:100% 生效 */
@supports not (aspect-ratio: 4 / 3) {
  .dev-media { height: 240px; }
}

.dev-card:hover .dev-img { transform: scale(1.04); }

/* 加载失败兜底占位态（占位图为 4:3，cover 同样完整铺满） */
.dev-img.is-fallback { object-fit: cover; opacity: 0.92; }

/* 双栏（调度中台 & 大模型网关） */
.duo-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.duo-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: 36px 32px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.duo-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.duo-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--gradient-main); opacity: 0.85; }
.duo-head { display: flex; align-items: center; gap: 16px; margin-bottom: 20px; }
.duo-ic {
  width: 52px; height: 52px; flex-shrink: 0;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(41,171,226,0.12), rgba(61,201,139,0.14));
  display: flex; align-items: center; justify-content: center;
}
.duo-head h3 { font-size: 20px; font-weight: 800; color: var(--color-text); }
.duo-card ul { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.duo-card ul li { display: flex; gap: 12px; font-size: 14.5px; color: var(--color-text-muted); line-height: 1.7; }
.duo-card ul li b { color: var(--color-text); font-weight: 700; }
.duo-check { color: var(--color-secondary); font-weight: 900; flex-shrink: 0; }
.duo-model-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.duo-model-tags span {
  font-size: 12.5px; color: #fff; font-weight: 600;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  padding: 5px 13px; border-radius: 50px;
}
.duo-big {
  font-size: 40px; font-weight: 900;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
  margin-bottom: 6px;
}
.duo-unit { font-size: 13px; color: var(--color-text-light); margin-bottom: 18px; }
@media (max-width: 900px) {
  .duo-grid { grid-template-columns: 1fr; }
  .dev-grid { grid-template-columns: repeat(2, 1fr); }
  .tok-about-split { grid-template-columns: 1fr; gap: 36px; }
}
@media (max-width: 560px) {
  .dev-grid { grid-template-columns: 1fr; }
  /* 单列时限制图片宽度，避免竖屏下图片过高 */
  .dev-media { max-width: 340px; margin-left: auto; margin-right: auto; }
}

/* 业务流程（词元工厂页复用六大自动化卡片布局，增加横向滚动徽章行） */
.tok-flow-note {
  text-align: center;
  margin-top: 28px;
  font-size: 13.5px;
  color: var(--color-text-light);
}
.tok-flow-note b { color: var(--color-secondary); }