/* ===== 基础变量与重置 ===== */
:root {
  --brand-red: #E93B3D;
  --brand-red-dark: #C82E30;
  --brand-red-light: #FF6B4A;
  --brand-orange: #FF8A3D;
  --text-primary: #1A1A1A;
  --text-secondary: #4A4A4A;
  --text-tertiary: #8A8A8A;
  --text-white: #FFFFFF;
  --bg-white: #FFFFFF;
  --bg-gray: #F7F8FA;
  --bg-light: #FAFBFC;
  --bg-light-peach: #FFF7F5;
  --bg-light-blue: #F5F8FF;
  --border-color: #EBEDF0;
  --border-light: #F0F2F5;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.08);
  --shadow-xl: 0 24px 64px rgba(0, 0, 0, 0.12);
  --shadow-red: 0 8px 24px rgba(233, 59, 61, 0.25);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-2xl: 32px;
  --radius-full: 9999px;
  --container-width: 1240px;
  --nav-height: 68px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }
img { max-width: 100%; display: block; }
svg { flex-shrink: 0; max-width: 100%; height: auto; }

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== 通用按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-weight: 500;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  font-family: inherit;
}
.btn svg { width: 16px; height: 16px; }
.btn-sm { padding: 8px 20px; font-size: 13px; }
.btn-lg { padding: 12px 28px; font-size: 15px; }
.btn-xl { padding: 16px 36px; font-size: 16px; font-weight: 600; }

.btn-primary {
  background: linear-gradient(135deg, var(--brand-red) 0%, var(--brand-red-light) 100%);
  color: var(--text-white);
  box-shadow: 0 4px 14px rgba(233, 59, 61, 0.3);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(233, 59, 61, 0.4);
}

.btn-outline {
  background: var(--bg-white);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}
.btn-outline:hover {
  border-color: var(--brand-red);
  color: var(--brand-red);
}

.btn-outline-red {
  background: rgba(233, 59, 61, 0.06);
  color: var(--brand-red);
  border: 1px solid rgba(233, 59, 61, 0.2);
}
.btn-outline-red:hover {
  background: var(--brand-red);
  color: white;
}

.btn-ghost {
  background: rgba(0,0,0,0.05);
  color: var(--text-primary);
}
.btn-ghost:hover {
  background: rgba(0,0,0,0.1);
}

.btn-white {
  background: white;
  color: var(--brand-red);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.1);
}
.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.btn-outline-white {
  background: transparent;
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.4);
}
.btn-outline-white:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.7);
}

/* ===== 导航栏 ===== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-height);
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  z-index: 1000;
  border-bottom: 1px solid transparent;
  transition: var(--transition);
}
.nav.scrolled {
  border-bottom-color: var(--border-light);
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}
.nav-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  display: flex; align-items: center; gap: 8px;
  font-size: 20px; font-weight: 700;
  color: var(--text-primary);
}
.logo-mark {
  width: 38px; height: 38px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--brand-red) 0%, var(--brand-red-light) 100%);
  color: white;
  border-radius: 10px;
  font-size: 18px; font-weight: 700;
  box-shadow: 0 4px 10px rgba(233, 59, 61, 0.3);
}
.logo-text { letter-spacing: -0.5px; }

.nav-menu { display: flex; align-items: center; gap: 32px; }
.nav-link {
  display: flex; align-items: center; gap: 2px;
  font-size: 15px; font-weight: 500;
  color: var(--text-secondary);
  position: relative; padding: 8px 0;
}
.nav-link:hover { color: var(--brand-red); }
.nav-link .chev {
  width: 14px; height: 14px;
  transition: var(--transition);
}
.nav-link:hover .chev { transform: rotate(180deg); }

.nav-actions { display: flex; align-items: center; gap: 16px; }
.nav-cta { box-shadow: 0 4px 12px rgba(233, 59, 61, 0.25); }

/* ===== 通用 Section ===== */
.section { padding: 100px 0; }
.section-gray { background: var(--bg-gray); }
.section-light-peach { background: var(--bg-light-peach); }
.section-light-blue { background: var(--bg-light-blue); }

.section-head {
  text-align: center;
  margin-bottom: 56px;
}
.section-head-large { margin-bottom: 64px; }
.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 18px;
  background: rgba(233, 59, 61, 0.08);
  color: var(--brand-red);
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 16px;
}
.section-eyebrow svg { width: 14px; height: 14px; }
.eyebrow-ai {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.12) 0%, rgba(233, 59, 61, 0.1) 100%);
  color: #7C3AED;
}
.eyebrow-purple {
  background: rgba(139, 92, 246, 0.1);
  color: #7C3AED;
}
.eyebrow-blue {
  background: rgba(59, 130, 246, 0.1);
  color: #3B82F6;
}

.section-title {
  font-size: 36px;
  font-weight: 900;
  line-height: 1.3;
  letter-spacing: -1px;
  margin-bottom: 16px;
  color: var(--text-primary);
}
.section-title-xl {
  font-size: 44px;
  line-height: 1.25;
  letter-spacing: -1.5px;
}
.section-desc {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.7;
}
.section-desc-lg { font-size: 18px; }

.text-gradient {
  background: linear-gradient(135deg, var(--brand-red) 0%, var(--brand-orange) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
/* ===== 2. Hero 首屏 ===== */
.hero {
  position: relative;
  padding-top: calc(var(--nav-height) + 80px);
  padding-bottom: 120px;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  z-index: 0;
}
.hero-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
}
.hero-blob-1 {
  width: 600px; height: 600px;
  top: -200px; left: -150px;
  background: radial-gradient(circle, rgba(255, 200, 200, 0.6) 0%, transparent 70%);
}
.hero-blob-2 {
  width: 500px; height: 500px;
  top: -100px; right: -100px;
  background: radial-gradient(circle, rgba(200, 220, 255, 0.5) 0%, transparent 70%);
}
.hero-blob-3 {
  width: 500px; height: 500px;
  bottom: -200px; left: 40%;
  background: radial-gradient(circle, rgba(255, 220, 200, 0.5) 0%, transparent 70%);
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  background: rgba(233, 59, 61, 0.08);
  color: var(--brand-red);
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 28px;
}
.badge-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--brand-red);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.2); }
}

.hero-title {
  font-size: 64px;
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -2.5px;
  margin-bottom: 28px;
  color: var(--text-primary);
}

.hero-subtitle {
  font-size: 18px;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 40px;
}

.hero-cta {
  display: flex;
  gap: 16px;
  margin-bottom: 56px;
}

.hero-trust {
  display: flex;
  align-items: center;
  gap: 40px;
}
.trust-item { display: flex; flex-direction: column; gap: 6px; }
.trust-num {
  font-size: 28px;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.5px;
}
.trust-label { font-size: 14px; color: var(--text-tertiary); }
.trust-divider {
  width: 1px;
  height: 40px;
  background: var(--border-color);
}

/* Hero Visual */
.hero-visual { position: relative; }
.hero-img-wrap {
  position: relative;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  transform: perspective(1200px) rotateY(-6deg) rotateX(4deg);
  transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}
.hero-img-wrap:hover {
  transform: perspective(1200px) rotateY(-3deg) rotateX(2deg);
}
.hero-img { width: 100%; height: auto; display: block; }

.float-card {
  position: absolute;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 14px 18px;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 12px;
  animation: floatY 5s ease-in-out infinite;
}
.float-card-1 { top: 10%; left: -30px; animation-delay: 0s; }
.float-card-2 { bottom: 25%; right: -20px; animation-delay: 1.5s; }
.float-card-3 { bottom: 5%; left: 10%; animation-delay: 3s; }

@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.fc-icon {
  width: 42px; height: 42px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
}
.fc-icon svg { width: 20px; height: 20px; color: white; }
.fc-green { background: linear-gradient(135deg, #10B981 0%, #34D399 100%); }
.fc-orange { background: linear-gradient(135deg, #F59E0B 0%, #FBBF24 100%); }
.fc-blue { background: linear-gradient(135deg, #3B82F6 0%, #60A5FA 100%); }
.fc-title { font-size: 12px; color: var(--text-tertiary); }
.fc-value {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
}

/* ===== 3. AI获客板块 ===== */
.ai-customer { padding-top: 80px; }
.ai-brand-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}
.ai-brand-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px 24px;
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}
.ai-brand-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}
.ai-brand-logo {
  width: 72px; height: 72px;
  border-radius: 18px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}
.ai-brand-logo img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
  padding: 10px;
  box-sizing: border-box;
  image-rendering: -webkit-optimize-contrast;
}
.ai-logo-bebebus { background: #fff; }
.ai-logo-gxg { background: #fff; }
.ai-logo-nova { background: #fff; }
.ai-logo-mammut { background: #fff; }

.ai-brand-body h4 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 4px;
}
.ai-brand-body p {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.5;
}
.ai-cta-row { text-align: center; }

/* ===== 4. 智能化运营主板块 ===== */
.smart-ops { padding-bottom: 120px; }

.ops-stats {
  display: flex;
  justify-content: center;
  gap: 80px;
  padding: 48px 0 64px;
}
.ops-stat { text-align: center; }
.ops-stat-num {
  font-size: 52px;
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -1.5px;
  background: linear-gradient(135deg, var(--brand-red) 0%, var(--brand-orange) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.num-display { display: inline; }
.ops-stat-num .unit {
  font-size: 22px;
  font-weight: 700;
  vertical-align: top;
  margin-left: 2px;
  -webkit-text-fill-color: currentColor;
}
.ops-stat-label {
  font-size: 15px;
  color: var(--text-secondary);
  margin-top: 10px;
}

.ops-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.ops-card-wide {
  grid-column: span 2;
}
.ops-card {
  position: relative;
  background: var(--bg-white);
  border-radius: var(--radius-xl);
  padding: 48px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  overflow: hidden;
  border: 1px solid var(--border-light);
  transition: var(--transition);
  cursor: pointer;
}
.ops-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: transparent;
  transform: translateY(-4px);
}
.ops-card-wide {
  background: linear-gradient(135deg, #FFF5F5 0%, #FFFFFF 60%);
}

.ops-card-tag {
  display: inline-block;
  padding: 6px 14px;
  background: rgba(233, 59, 61, 0.1);
  color: var(--brand-red);
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 16px;
}
.tag-orange { background: rgba(249, 115, 22, 0.1); color: #F97316; }
.tag-green { background: rgba(16, 185, 129, 0.1); color: #10B981; }
.tag-red { background: rgba(233, 59, 61, 0.1); color: var(--brand-red); }

.ops-card-title {
  font-size: 28px;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 14px;
  letter-spacing: -0.5px;
}
.ops-card-wide .ops-card-title { font-size: 32px; }

.ops-card-desc {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.ops-card-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 15px;
  font-weight: 600;
  color: var(--brand-red);
}

.ops-card-phone {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: var(--bg-light);
  border-radius: var(--radius-full);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 20px;
}
.ops-card-phone svg {
  width: 18px; height: 18px;
  color: var(--brand-red);
}

.ops-card-visual {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.ops-card-visual img {
  width: 100%;
  height: auto;
  transition: transform 0.6s ease;
}
.ops-card:hover .ops-card-visual img {
  transform: scale(1.05);
}

/* ===== 5. 智能化的客户运营 ===== */
.customer-ops { padding: 120px 0; background: var(--bg-white); }
.customer-ops-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.customer-ops-content .section-eyebrow { margin-bottom: 20px; }
.customer-ops-content .section-title { text-align: left; margin-bottom: 20px; }
.customer-ops-content .section-desc {
  text-align: left;
  margin: 0 0 32px;
  max-width: 100%;
}

.product-tabs {
  display: flex;
  gap: 12px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}
.product-tab {
  padding: 10px 20px;
  background: var(--bg-gray);
  border-radius: var(--radius-full);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
  cursor: pointer;
}
.product-tab.active {
  background: rgba(233, 59, 61, 0.1);
  color: var(--brand-red);
  font-weight: 600;
}
.product-tab:hover:not(.active) { background: var(--border-light); }

.customer-ops-visual {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}
.customer-ops-visual img { width: 100%; height: auto; }

/* ===== 6/7/8 图标网格通用 ===== */
.icon-grid {
  display: grid;
  gap: 20px;
}
.icon-grid-4 { grid-template-columns: repeat(4, 1fr); }

.icon-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  border: 1px solid var(--border-light);
  transition: var(--transition);
  cursor: pointer;
}
.icon-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}

.icon-card-icon {
  width: 68px; height: 68px;
  border-radius: 18px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px;
}
.icon-card-icon svg { width: 28px; height: 28px; color: white; }

.icon-card-icon.icon-img {
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}
.icon-card-icon.icon-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: 18px;
}

.icon-red { background: linear-gradient(135deg, #EF4444 0%, #F87171 100%); box-shadow: 0 4px 12px rgba(239, 68, 68, 0.25); }
.icon-blue { background: linear-gradient(135deg, #3B82F6 0%, #60A5FA 100%); box-shadow: 0 4px 12px rgba(59, 130, 246, 0.25); }
.icon-purple { background: linear-gradient(135deg, #8B5CF6 0%, #A78BFA 100%); box-shadow: 0 4px 12px rgba(139, 92, 246, 0.25); }
.icon-pink { background: linear-gradient(135deg, #EC4899 0%, #F472B6 100%); box-shadow: 0 4px 12px rgba(236, 72, 153, 0.25); }
.icon-orange { background: linear-gradient(135deg, #F97316 0%, #FB923C 100%); box-shadow: 0 4px 12px rgba(249, 115, 22, 0.25); }
.icon-green { background: linear-gradient(135deg, #10B981 0%, #34D399 100%); box-shadow: 0 4px 12px rgba(16, 185, 129, 0.25); }
.icon-indigo { background: linear-gradient(135deg, #6366F1 0%, #818CF8 100%); box-shadow: 0 4px 12px rgba(99, 102, 241, 0.25); }
.icon-yellow { background: linear-gradient(135deg, #EAB308 0%, #FACC15 100%); box-shadow: 0 4px 12px rgba(234, 179, 8, 0.25); }
.icon-teal { background: linear-gradient(135deg, #14B8A6 0%, #2DD4BF 100%); box-shadow: 0 4px 12px rgba(20, 184, 166, 0.25); }

.icon-card h4 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
}
.icon-card p {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-secondary);
  margin-bottom: 16px;
  min-height: 40px;
}
.icon-card-link {
  font-size: 13px;
  font-weight: 600;
  color: var(--brand-red);
}

/* ===== 9. 商家案例 ===== */
.cases-section { padding-bottom: 100px; }

/* 列表式案例 */
.case-list-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 48px;
}
.case-list-grid-3 { grid-template-columns: repeat(3, 1fr); }
.case-list-item {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 24px;
  border: 1px solid var(--border-light);
  transition: var(--transition);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.case-list-item:hover {
  box-shadow: var(--shadow-md);
  border-color: transparent;
  transform: translateY(-3px);
}

.cli-logo {
  width: 48px; height: 48px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.cli-logo span {
  font-size: 18px;
  font-weight: 700;
  color: white;
}
.cli-1 { background: linear-gradient(135deg, #F59E0B 0%, #FBBF24 100%); }
.cli-2 { background: linear-gradient(135deg, #EC4899 0%, #F472B6 100%); }
.cli-3 { background: linear-gradient(135deg, #8B5CF6 0%, #A78BFA 100%); }
.cli-4 { background: linear-gradient(135deg, #10B981 0%, #34D399 100%); }
.cli-5 { background: linear-gradient(135deg, #F97316 0%, #FB923C 100%); }
.cli-6 { background: linear-gradient(135deg, #6366F1 0%, #818CF8 100%); }
.cli-logo {
  width: 88px; height: 88px;
  border-radius: 20px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}
.cli-logo img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
  padding: 12px;
  box-sizing: border-box;
  image-rendering: -webkit-optimize-contrast;
}
.cli-3d { background: #fff; }
.cli-re { background: #fff; }
.cli-mcd { background: #fff; }
.cli-shidian { background: #fff; }
.cli-jin { background: #fff; }
.cli-ge { background: #fff; }
.cli-skg { background: #fff; }
.cli-bochong { background: #fff; }
.cli-heise { background: #fff; }
.cli-kappa { background: #fff; }

.cli-industry {
  font-size: 12px;
  color: var(--brand-red);
  font-weight: 600;
  margin-bottom: 6px;
}
.cli-content h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 6px;
  line-height: 1.4;
}
.cli-content > p {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-secondary);
}

.cli-metrics {
  display: flex;
  gap: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--border-light);
}
.cli-metric { display: flex; flex-direction: column; gap: 2px; }
.cli-num {
  font-size: 18px;
  font-weight: 800;
  color: var(--brand-red);
  line-height: 1.2;
}
.cli-label {
  font-size: 11px;
  color: var(--text-tertiary);
}

.case-more { text-align: center; }

/* ===== 12. 安全认证 ===== */
.security-section { padding: 80px 0; }
.security-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 20px;
}
.security-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  text-align: center;
  border: 1px solid var(--border-light);
  transition: var(--transition);
}
.security-card:hover {
  box-shadow: var(--shadow-md);
  border-color: transparent;
  transform: translateY(-3px);
}
.security-icon {
  width: 60px; height: 60px;
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 14px;
}
.security-icon svg { width: 26px; height: 26px; color: white; }
.sec-icon-1 { background: linear-gradient(135deg, #EF4444 0%, #F87171 100%); }
.sec-icon-2 { background: linear-gradient(135deg, #3B82F6 0%, #60A5FA 100%); }
.sec-icon-3 { background: linear-gradient(135deg, #8B5CF6 0%, #A78BFA 100%); }
.sec-icon-4 { background: linear-gradient(135deg, #F59E0B 0%, #FBBF24 100%); }
.sec-icon-5 { background: linear-gradient(135deg, #10B981 0%, #34D399 100%); }
.sec-icon-6 { background: linear-gradient(135deg, var(--brand-red) 0%, var(--brand-orange) 100%); }

.security-icon-img {
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  overflow: hidden;
}
.security-icon-img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  padding: 4px;
  box-sizing: border-box;
}

.security-card h4 {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 6px;
  line-height: 1.4;
}
.security-card p {
  font-size: 12px;
  color: var(--text-tertiary);
}
.sec-highlight {
  background: linear-gradient(135deg, #FEF2F2 0%, #FFFFFF 100%);
  border: 1px solid rgba(233, 59, 61, 0.15);
  position: relative;
}
.sec-percent {
  margin-top: 12px;
  font-size: 24px;
  font-weight: 900;
  color: var(--brand-red);
  letter-spacing: -0.5px;
}

/* ===== 14. 底部CTA ===== */
.bottom-cta {
  position: relative;
  padding: 120px 0;
  background: linear-gradient(135deg, #E93B3D 0%, #FF6B4A 100%);
  overflow: hidden;
}
.bottom-cta-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}
.cta-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
}
.cta-blob-1 {
  width: 400px; height: 400px;
  top: -100px; left: -50px;
  background: rgba(255, 255, 255, 0.15);
}
.cta-blob-2 {
  width: 500px; height: 500px;
  bottom: -200px; right: -100px;
  background: rgba(255, 200, 150, 0.2);
}

.bottom-cta-inner {
  position: relative;
  z-index: 1;
  text-align: center;
  color: white;
  max-width: 720px;
  margin: 0 auto;
}
.bottom-cta-title {
  font-size: 48px;
  font-weight: 900;
  letter-spacing: -1.5px;
  margin-bottom: 16px;
  line-height: 1.2;
}
.bottom-cta-desc {
  font-size: 18px;
  line-height: 1.8;
  opacity: 0.9;
  margin-bottom: 36px;
}
.bottom-cta-desc strong { font-weight: 700; }

.bottom-cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 36px;
}

.cta-form-wrap {
  display: flex;
  gap: 12px;
  justify-content: center;
  max-width: 520px;
  margin: 0 auto;
}
.cta-input-lg {
  flex: 1;
  padding: 16px 24px;
  font-size: 16px;
  border: none;
  border-radius: var(--radius-full);
  outline: none;
  font-family: inherit;
  background: rgba(255, 255, 255, 0.95);
}
.cta-input-lg::placeholder { color: var(--text-tertiary); }
.cta-input-lg:focus {
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.3);
}
.cta-submit-btn { flex-shrink: 0; }

/* ===== 15. 页脚 ===== */
.footer {
  background: #111114;
  color: rgba(255, 255, 255, 0.6);
  padding: 72px 0 28px;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 56px;
}
.footer-brand-col { grid-column: span 1; }

.footer-logo {
  display: flex; align-items: center; gap: 8px;
  font-size: 20px; font-weight: 700;
  color: white;
  margin-bottom: 12px;
}
.logo-mark-light {
  background: linear-gradient(135deg, var(--brand-red) 0%, var(--brand-red-light) 100%);
}
.logo-text-light { color: white; }

.footer-slogan {
  font-size: 16px;
  font-weight: 600;
  color: white;
  margin-bottom: 8px;
}
.footer-desc {
  font-size: 13px;
  line-height: 1.6;
  margin-bottom: 20px;
  opacity: 0.6;
}
.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 24px;
}
.contact-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
}
.contact-item svg {
  width: 16px; height: 16px;
  color: var(--brand-red);
}

.footer-social {
  display: flex;
  gap: 10px;
}
.social-icon {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.social-icon svg {
  width: 18px; height: 18px;
  color: rgba(255, 255, 255, 0.7);
  transition: var(--transition);
}
.social-icon:hover { background: var(--brand-red); }
.social-icon:hover svg { color: white; opacity: 1; }

.footer-title {
  font-size: 14px;
  font-weight: 600;
  color: white;
  margin-bottom: 20px;
}
.footer-links { display: flex; flex-direction: column; gap: 12px; }
.footer-links a {
  font-size: 13px;
  opacity: 0.6;
  transition: var(--transition);
}
.footer-links a:hover { opacity: 1; color: white; }

.footer-divider {
  height: 1px;
  background: rgba(255, 255, 255, 0.08);
  margin-bottom: 24px;
}
.footer-bottom { text-align: center; }
.footer-copyright {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 12px;
  opacity: 0.4;
}

/* ===== 进场动画 ===== */
.fade-in-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.fade-in-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== 响应式 ===== */
@media (max-width: 1200px) {
  .hero-title { font-size: 52px; }
  .section-title-xl { font-size: 36px; }
  .footer-top { grid-template-columns: 1.5fr 1fr 1fr 1fr; }
}

@media (max-width: 1024px) {
  .hero-inner,
  .customer-ops-inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .hero-visual { max-width: 520px; margin: 0 auto; }
  
  .ops-cards { grid-template-columns: 1fr; }
  .ops-card-wide { grid-column: span 1; }
  .ops-card {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 36px;
  }
  
  .icon-grid-4 { grid-template-columns: repeat(2, 1fr); }
  .ai-brand-row { grid-template-columns: repeat(2, 1fr); }
  .case-list-grid { grid-template-columns: repeat(2, 1fr); }
  .security-grid { grid-template-columns: repeat(3, 1fr); }
  
  .footer-top { grid-template-columns: 1fr 1fr 1fr; gap: 32px; }
  .footer-brand-col { grid-column: span 3; }
  
  .ops-stats { gap: 48px; }
  .ops-stat-num { font-size: 44px; }
}

@media (max-width: 768px) {
  .nav-menu { display: none; }
  .section { padding: 64px 0; }
  .hero { padding-top: calc(var(--nav-height) + 40px); padding-bottom: 64px; }
  .hero-title { font-size: 40px; }
  .section-title-xl { font-size: 28px; }
  .section-title { font-size: 24px; }
  
  .ops-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    padding: 32px 0 48px;
  }
  .ops-stat-num { font-size: 36px; }
  
  .ai-brand-row { grid-template-columns: 1fr; }
  .icon-grid-4 { grid-template-columns: 1fr; }
  .case-list-grid { grid-template-columns: 1fr; }
  .security-grid { grid-template-columns: repeat(2, 1fr); }
  
  .bottom-cta-title { font-size: 32px; }
  .bottom-cta-actions { flex-direction: column; align-items: center; }
  .cta-form-wrap { flex-direction: column; }
  
  .footer-top { grid-template-columns: 1fr 1fr; }
  .footer-brand-col { grid-column: span 2; }
  
  .hero-trust { gap: 20px; }
  .trust-num { font-size: 22px; }
  .trust-divider { height: 30px; }
}

/* ===== 文章详情页 强兜底样式（高优先级） ===== */
body .article-section {
  padding: calc(var(--nav-height) + 40px) 0 80px;
  background: var(--bg-gray);
}
body .article-container {
  max-width: 800px !important;
  margin: 0 auto !important;
  padding: 0 24px !important;
  width: 100% !important;
  box-sizing: border-box !important;
}
body .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-tertiary);
  margin-bottom: 24px;
  flex-wrap: wrap;
}
body .breadcrumb a { color: var(--text-tertiary); text-decoration: none; }
body .breadcrumb a:hover { color: var(--brand-red); }
body .breadcrumb-sep { color: var(--text-tertiary); font-size: 12px; }
body .breadcrumb-current { color: var(--text-secondary); font-weight: 500; }

body .article-header {
  background: var(--bg-white);
  border-radius: var(--radius-xl);
  padding: 48px;
  margin-bottom: 24px;
  text-align: center;
  border: 1px solid var(--border-light);
  box-sizing: border-box;
}
body .article-tag {
  display: inline-block !important;
  padding: 6px 16px !important;
  background: linear-gradient(135deg, var(--brand-red), var(--brand-orange)) !important;
  color: white !important;
  font-size: 13px !important;
  font-weight: 600 !important;
  border-radius: var(--radius-full) !important;
  margin-bottom: 20px !important;
  text-decoration: none !important;
}
body .article-title {
  font-size: 32px !important;
  font-weight: 900 !important;
  color: var(--text-primary) !important;
  line-height: 1.3 !important;
  margin-bottom: 20px !important;
  letter-spacing: -0.5px;
  text-align: center !important;
}
body .article-meta {
  display: flex !important;
  gap: 20px !important;
  justify-content: center !important;
  font-size: 14px !important;
  color: var(--text-tertiary) !important;
  flex-wrap: wrap !important;
  margin: 0 !important;
  padding: 0 !important;
}

body .article-body {
  background: var(--bg-white);
  border-radius: var(--radius-xl);
  padding: 56px 64px !important;
  margin-bottom: 24px !important;
  border: 1px solid var(--border-light);
  box-sizing: border-box;
}
body .article-body p,
body .article-body ul,
body .article-body ol,
body .article-body h1,
body .article-body h2,
body .article-body h3,
body .article-body h4,
body .article-body h5,
body .article-body h6,
body .article-body table,
body .article-body blockquote {
  margin-left: 0 !important;
  margin-right: 0 !important;
  max-width: 100% !important;
  width: auto !important;
}
body .article-lead {
  font-size: 17px !important;
  line-height: 1.8 !important;
  color: var(--text-secondary) !important;
  padding: 24px 28px !important;
  background: var(--bg-light-peach) !important;
  border-left: 4px solid var(--brand-red) !important;
  border-radius: 0 var(--radius-md) var(--radius-md) 0 !important;
  margin-bottom: 36px !important;
}
body .article-body h1 {
  font-size: 32px !important;
  font-weight: 900 !important;
  color: var(--text-primary) !important;
  margin: 40px 0 20px !important;
  line-height: 1.3 !important;
  border: none !important;
  padding: 0 !important;
}
body .article-body h2 {
  font-size: 24px !important;
  font-weight: 800 !important;
  color: var(--text-primary) !important;
  margin: 40px 0 16px !important;
  padding-bottom: 12px !important;
  border-bottom: 2px solid var(--border-light) !important;
  line-height: 1.4 !important;
  letter-spacing: -0.3px;
  text-align: left !important;
}
body .article-body h2:first-child { margin-top: 0 !important; }
body .article-body h3 {
  font-size: 20px !important;
  font-weight: 700 !important;
  color: var(--text-primary) !important;
  margin: 28px 0 14px !important;
  line-height: 1.4 !important;
  border: none !important;
  padding: 0 !important;
  text-align: left !important;
}
body .article-body p {
  font-size: 16px !important;
  line-height: 1.8 !important;
  color: var(--text-secondary) !important;
  margin-bottom: 18px !important;
  text-align: left !important;
}
body .article-body ul,
body .article-body ol {
  margin-bottom: 20px !important;
  padding-left: 24px !important;
}
body .article-body ul li,
body .article-body ol li {
  font-size: 16px !important;
  line-height: 1.8 !important;
  color: var(--text-secondary) !important;
  margin-bottom: 10px !important;
  text-align: left !important;
}
body .article-body ul li { list-style: disc !important; }
body .article-body ol li { list-style: decimal !important; }
body .article-body strong {
  color: var(--text-primary) !important;
  font-weight: 600 !important;
}
body .article-body img {
  max-width: 100% !important;
  height: auto !important;
  border-radius: var(--radius-md) !important;
  display: block !important;
  margin: 20px 0 !important;
}
body .article-body h2 + p,
body .article-body h3 + p { margin-top: 8px !important; }
body .article-body a {
  color: var(--brand-red) !important;
  text-decoration: none !important;
}
body .article-body a:hover { text-decoration: underline !important; }

body .article-table-wrap {
  overflow-x: auto;
  margin: 20px 0 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
}
body .article-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
body .article-table th {
  background: var(--bg-light-peach);
  color: var(--text-primary);
  font-weight: 700;
  padding: 14px 16px;
  text-align: left;
  border-bottom: 2px solid var(--brand-red);
  white-space: nowrap;
}
body .article-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-light);
  color: var(--text-secondary);
  line-height: 1.6;
}
body .article-table tr:nth-child(even) td { background: var(--bg-light); }
body .article-table tr:last-child td { border-bottom: none; }

/* 文章底部 */
body .article-footer {
  background: var(--bg-white);
  border-radius: var(--radius-xl);
  padding: 24px 48px;
  margin-bottom: 40px;
  border: 1px solid var(--border-light);
  box-sizing: border-box;
}
body .article-tags {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
body .tag-label {
  font-size: 14px;
  color: var(--text-tertiary);
  font-weight: 500;
}
body .article-tag-link {
  padding: 4px 14px !important;
  background: var(--bg-gray) !important;
  border-radius: var(--radius-full) !important;
  font-size: 13px !important;
  color: var(--text-secondary) !important;
  text-decoration: none !important;
  transition: var(--transition);
}
body .article-tag-link:hover {
  background: var(--brand-red) !important;
  color: white !important;
}

/* 相关推荐 */
body .article-related {
  background: var(--bg-white);
  border-radius: var(--radius-xl);
  padding: 40px 48px !important;
  border: 1px solid var(--border-light);
  box-sizing: border-box;
}
body .related-title {
  font-size: 22px !important;
  font-weight: 800 !important;
  color: var(--text-primary) !important;
  margin: 0 0 24px !important;
  padding-top: 0 !important;
  border-top: none !important;
  border-bottom: none !important;
  line-height: 1.3 !important;
  text-align: left !important;
}
body .related-grid {
  display: grid !important;
  grid-template-columns: repeat(3, 1fr) !important;
  gap: 20px !important;
}
body .related-card {
  display: block !important;
  padding: 20px !important;
  background: var(--bg-gray) !important;
  border-radius: var(--radius-lg) !important;
  transition: var(--transition) !important;
  text-decoration: none !important;
  color: inherit !important;
  border: 1px solid transparent;
  box-sizing: border-box !important;
}
body .related-card:hover {
  background: var(--bg-light-peach) !important;
  transform: translateY(-3px) !important;
  border-color: var(--border-light) !important;
}
body .related-tag {
  display: inline-block !important;
  padding: 3px 10px !important;
  background: white !important;
  border-radius: var(--radius-full) !important;
  font-size: 12px !important;
  font-weight: 600 !important;
  color: var(--brand-red) !important;
  margin-bottom: 10px !important;
}
body .related-card h4 {
  font-size: 15px !important;
  font-weight: 600 !important;
  line-height: 1.5 !important;
  color: var(--text-primary) !important;
  margin: 0 0 10px !important;
  padding: 0 !important;
  border: none !important;
  display: -webkit-box !important;
  -webkit-line-clamp: 2 !important;
  -webkit-box-orient: vertical !important;
  overflow: hidden !important;
  min-height: 44px !important;
  text-align: left !important;
}
body .related-date {
  font-size: 12px !important;
  color: var(--text-tertiary) !important;
}

/* SVG 全局强约束（防放大） */
body svg {
  max-width: 100% !important;
  height: auto !important;
  flex-shrink: 0 !important;
}
body .related-card svg,
body .news-card svg,
body .article-body svg {
  max-width: 60px !important;
  max-height: 60px !important;
}

/* 移动端响应式 - 文章详情页 */
@media (max-width: 768px) {
  body .article-header { padding: 32px 24px !important; }
  body .article-title { font-size: 24px !important; }
  body .article-body { padding: 28px 20px !important; }
  body .article-body h2 { font-size: 20px !important; }
  body .article-body h3 { font-size: 18px !important; }
  body .article-body p,
  body .article-body ul li,
  body .article-body ol li { font-size: 15px !important; }
  body .article-footer { padding: 20px 24px !important; }
  body .article-related { padding: 28px 24px !important; }
  body .related-grid { grid-template-columns: 1fr !important; }
}

/* ===== 合规：数据来源标注 ===== */
sup.data-src {
  font-size: 10px;
  font-weight: 400;
  color: #999;
  margin-left: 2px;
  vertical-align: super;
  white-space: nowrap;
}
.fc-src {
  display: block;
  font-size: 11px;
  font-weight: 400;
  color: rgba(255,255,255,0.7);
  margin-top: 2px;
}
.sec-percent-note {
  display: block;
  font-size: 12px;
  font-weight: 400;
  color: #999;
  margin-top: 4px;
}
.cta-data-src {
  display: block;
  font-size: 12px;
  color: rgba(255,255,255,0.6);
  margin-top: 8px;
  font-weight: 400;
}
.case-data-src {
  font-size: 11px;
  color: #999;
  margin-top: 6px;
  display: block;
}

/* ===== 文章免责声明 ===== */
.yz-article-disclaimer {
  margin-top: 32px;
  padding: 16px 20px;
  background: #f7f9fc;
  border-left: 3px solid #3b6ef6;
  border-radius: 0 8px 8px 0;
  font-size: 13px;
  color: #666;
  line-height: 1.7;
}
.yz-article-disclaimer p {
  margin: 0;
}
.yz-article-disclaimer strong {
  color: #333;
  font-weight: 600;
}

/* ===== 隐藏平台注入的"豆包工作生成"等水印徽标（CSS兜底） ===== */
[class*="doubao"][class*="badge"],
[class*="doubao"][class*="watermark"],
[class*="doubao"][class*="brand"],
[class*="doubao"][class*="powered"],
[class*="miaoda"][class*="badge"],
[class*="miaoda"][class*="watermark"],
[class*="miaoda"][class*="brand"],
[class*="miaoda"][class*="powered"],
[id*="doubao"][id*="badge"],
[id*="doubao"][id*="watermark"],
[id*="doubao"][id*="brand"],
[id*="miaoda"][id*="badge"],
[id*="miaoda"][id*="watermark"],
[id*="miaoda"][id*="brand"] {
  display: none !important;
  visibility: hidden !important;
  opacity: 0 !important;
  pointer-events: none !important;
  width: 0 !important;
  height: 0 !important;
  overflow: hidden !important;
}