/* ===== 企业AI服务商官网 - 共享样式 ===== */
:root {
  --navy-900: #061024;
  --navy-800: #0B1A2E;
  --navy-700: #112240;
  --navy-600: #1A3359;
  --navy-500: #23426B;
  --blue-600: #2563EB;
  --blue-500: #3B82F6;
  --blue-400: #60A5FA;
  --cyan-500: #0EA5E9;
  --cyan-400: #38BDF8;
  --green-500: #10B981;
  --green-400: #34D399;
  --orange-500: #F97316;
  --orange-400: #FB923C;
  --slate-100: #F1F5F9;
  --slate-200: #E2E8F0;
  --slate-300: #CBD5E1;
  --slate-400: #94A3B8;
  --slate-500: #64748B;
  --slate-600: #475569;
  --white: #FFFFFF;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --shadow-glow: 0 0 40px rgba(37, 99, 235, 0.15);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Roboto, sans-serif;
  color: var(--slate-800, #1E293B);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

img { max-width: 100%; display: block; }

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== 导航栏 ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(11, 26, 46, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: all 0.3s ease;
}

.navbar.scrolled {
  background: rgba(6, 16, 36, 0.95);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--white);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.nav-logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--blue-500), var(--cyan-400));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 800;
  color: var(--white);
}

.nav-logo-text {
  font-size: 17px;
  font-weight: 700;
}

.nav-logo-sub {
  font-size: 11px;
  font-weight: 400;
  color: var(--slate-400);
  display: block;
  letter-spacing: 1px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: block;
  padding: 8px 14px;
  color: var(--slate-300);
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

.nav-link:hover {
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
}

.nav-link.active {
  color: var(--cyan-400);
}

.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  min-width: 260px;
  background: rgba(17, 34, 64, 0.98);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: all 0.25s ease;
  box-shadow: var(--shadow-xl);
}

.nav-item:hover .nav-dropdown {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.nav-dropdown-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  color: var(--slate-300);
  font-size: 13.5px;
  border-radius: var(--radius-sm);
  transition: all 0.15s ease;
}

.nav-dropdown-link:hover {
  background: rgba(59, 130, 246, 0.12);
  color: var(--white);
}

.nav-dropdown-icon {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: rgba(59, 130, 246, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
}

.nav-cta {
  background: linear-gradient(135deg, var(--blue-500), var(--cyan-500));
  color: var(--white) !important;
  padding: 9px 20px !important;
  border-radius: var(--radius-sm) !important;
  font-weight: 600 !important;
  font-size: 13.5px !important;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(37, 99, 235, 0.4);
}

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-hamburger span {
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.nav-mobile-menu {
  display: none;
  position: fixed;
  top: 68px;
  left: 0;
  right: 0;
  background: rgba(6, 16, 36, 0.98);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding: 16px;
  z-index: 999;
  max-height: calc(100vh - 68px);
  overflow-y: auto;
}

.nav-mobile-menu.open { display: block; }

.mobile-nav-item {
  list-style: none;
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  color: var(--slate-300);
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--radius-sm);
}

.mobile-nav-link:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--white);
}

.mobile-nav-link.active { color: var(--cyan-400); }

.mobile-submenu {
  padding: 4px 0 8px 16px;
  display: none;
}

.mobile-submenu.open { display: block; }

.mobile-sub-link {
  display: block;
  padding: 10px 16px;
  color: var(--slate-400);
  font-size: 14px;
  border-radius: var(--radius-sm);
}

.mobile-sub-link:hover { color: var(--white); background: rgba(255,255,255,0.04); }

/* ===== 页面头部 Hero ===== */
.page-hero {
  padding: 140px 0 80px;
  background: linear-gradient(180deg, var(--navy-900) 0%, var(--navy-800) 50%, var(--navy-700) 100%);
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image:
    linear-gradient(rgba(59, 130, 246, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59, 130, 246, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 40%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 40%, transparent 75%);
}

.page-hero::after {
  content: '';
  position: absolute;
  top: 20%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 500px;
  background: radial-gradient(ellipse, rgba(59, 130, 246, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(59, 130, 246, 0.12);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: 100px;
  color: var(--cyan-400);
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 28px;
}

.hero-badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green-400);
  box-shadow: 0 0 8px var(--green-400);
}

.hero-title {
  font-size: 48px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--white);
  letter-spacing: -1px;
  margin-bottom: 20px;
}

.hero-title-gradient {
  background: linear-gradient(135deg, var(--blue-400), var(--cyan-400));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 18px;
  line-height: 1.7;
  color: var(--slate-400);
  margin-bottom: 36px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.3s ease;
  text-decoration: none;
  font-family: inherit;
}

.btn-primary {
  background: linear-gradient(135deg, var(--blue-500), var(--cyan-500));
  color: var(--white);
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.45);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.35);
}

/* ===== 通用区块 ===== */
.section {
  padding: 100px 0;
}

.section-dark {
  background: var(--navy-800);
  color: var(--white);
}

.section-slate {
  background: var(--slate-100);
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 64px;
}

.section-label {
  display: inline-block;
  padding: 5px 14px;
  background: rgba(59, 130, 246, 0.1);
  color: var(--blue-600);
  font-size: 13px;
  font-weight: 600;
  border-radius: 100px;
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}

.section-dark .section-label {
  background: rgba(59, 130, 246, 0.15);
  color: var(--cyan-400);
}

.section-title {
  font-size: 38px;
  font-weight: 700;
  line-height: 1.25;
  color: var(--navy-900);
  letter-spacing: -0.5px;
  margin-bottom: 16px;
}

.section-dark .section-title {
  color: var(--white);
}

.section-desc {
  font-size: 17px;
  line-height: 1.7;
  color: var(--slate-600);
}

.section-dark .section-desc {
  color: var(--slate-400);
}

/* ===== 业务卡片网格 ===== */
.biz-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
}

.biz-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px;
  border: 1px solid var(--slate-200);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.section-dark .biz-card {
  background: rgba(17, 34, 64, 0.6);
  border-color: rgba(255, 255, 255, 0.08);
}

.biz-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--blue-400);
}

.section-dark .biz-card:hover {
  background: rgba(26, 51, 89, 0.7);
  border-color: rgba(59, 130, 246, 0.3);
}

.biz-card-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.12), rgba(14, 165, 233, 0.12));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 24px;
}

.biz-card-num {
  position: absolute;
  top: 24px;
  right: 28px;
  font-size: 48px;
  font-weight: 800;
  color: var(--slate-100);
  line-height: 1;
  letter-spacing: -2px;
}

.section-dark .biz-card-num {
  color: rgba(255, 255, 255, 0.04);
}

.biz-card-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--navy-900);
  margin-bottom: 12px;
}

.section-dark .biz-card-title {
  color: var(--white);
}

.biz-card-desc {
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--slate-600);
  margin-bottom: 20px;
}

.section-dark .biz-card-desc {
  color: var(--slate-400);
}

.biz-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.biz-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  background: var(--slate-100);
  color: var(--slate-600);
  font-size: 12px;
  border-radius: 6px;
  font-weight: 500;
}

.section-dark .biz-tag {
  background: rgba(255, 255, 255, 0.06);
  color: var(--slate-400);
}

.biz-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 18px;
  border-top: 1px solid var(--slate-200);
}

.section-dark .biz-card-footer {
  border-top-color: rgba(255, 255, 255, 0.08);
}

.savings-label {
  font-size: 12px;
  color: var(--slate-500);
  margin-bottom: 4px;
}

.section-dark .savings-label {
  color: var(--slate-500);
}

.savings-amount {
  font-size: 20px;
  font-weight: 800;
  color: var(--green-500);
  letter-spacing: -0.5px;
}

.savings-amount.orange {
  color: var(--orange-500);
}

.biz-card-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--blue-600);
  font-size: 13.5px;
  font-weight: 600;
}

.section-dark .biz-card-link {
  color: var(--cyan-400);
}

.biz-card-link:hover {
  gap: 8px;
}

/* ===== 子业务卡片 ===== */
.sub-biz-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 28px;
}

.sub-biz-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--slate-200);
  overflow: hidden;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}

.sub-biz-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--blue-400);
}

.sub-biz-header {
  padding: 24px 28px 20px;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.04), rgba(14, 165, 233, 0.04));
  border-bottom: 1px solid var(--slate-200);
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.sub-biz-num {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--blue-500), var(--cyan-500));
  color: var(--white);
  font-size: 15px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.sub-biz-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--navy-900);
  line-height: 1.4;
}

.sub-biz-body {
  padding: 20px 28px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.sub-biz-desc {
  font-size: 14px;
  line-height: 1.75;
  color: var(--slate-600);
  margin-bottom: 20px;
}

.sub-biz-meta {
  margin-bottom: 18px;
  padding: 14px 16px;
  background: var(--slate-100);
  border-radius: var(--radius-sm);
}

.meta-row {
  display: flex;
  gap: 8px;
  margin-bottom: 8px;
  font-size: 13px;
  line-height: 1.6;
}

.meta-row:last-child { margin-bottom: 0; }

.meta-label {
  color: var(--slate-500);
  font-weight: 600;
  flex-shrink: 0;
  white-space: nowrap;
}

.meta-value {
  color: var(--slate-700);
}

.savings-banner {
  margin-top: auto;
  padding: 14px 18px;
  background: linear-gradient(135deg, #ECFDF5, #D1FAE5);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.savings-banner.orange {
  background: linear-gradient(135deg, #FFF7ED, #FFEDD5);
}

.savings-banner-label {
  font-size: 12.5px;
  color: var(--slate-600);
  font-weight: 500;
}

.savings-banner-amount {
  font-size: 18px;
  font-weight: 800;
  color: var(--green-500);
  letter-spacing: -0.3px;
  white-space: nowrap;
}

.savings-banner.orange .savings-banner-amount {
  color: var(--orange-500);
}

/* ===== 数据统计区 ===== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.stat-card {
  text-align: center;
  padding: 32px 16px;
  position: relative;
}

.stat-card:not(:last-child)::after {
  content: '';
  position: absolute;
  right: -16px;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 60px;
  background: linear-gradient(180deg, transparent, rgba(148, 163, 184, 0.3), transparent);
}

.section-dark .stat-card:not(:last-child)::after {
  background: linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.1), transparent);
}

.stat-number {
  font-size: 52px;
  font-weight: 800;
  line-height: 1.1;
  background: linear-gradient(135deg, var(--blue-500), var(--cyan-400));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
  letter-spacing: -2px;
}

.stat-label {
  font-size: 15px;
  color: var(--slate-600);
  font-weight: 500;
}

.section-dark .stat-label {
  color: var(--slate-400);
}

/* ===== 核心优势 ===== */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.adv-card {
  padding: 40px 32px;
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--slate-200);
  text-align: center;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.adv-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue-500), var(--cyan-400));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.adv-card:hover::before {
  transform: scaleX(1);
}

.adv-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
}

.adv-icon {
  width: 72px;
  height: 72px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(14, 165, 233, 0.1));
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  font-size: 32px;
}

.adv-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--navy-900);
  margin-bottom: 12px;
}

.adv-desc {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--slate-600);
}

/* ===== 7大业务板块导航 ===== */
.sector-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.sector-card {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 24px;
  background: var(--white);
  border-radius: var(--radius-md);
  border: 1px solid var(--slate-200);
  transition: all 0.3s ease;
}

.sector-card:hover {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.03), rgba(14, 165, 233, 0.03));
  border-color: var(--blue-400);
  transform: translateX(4px);
}

.sector-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--blue-500), var(--cyan-500));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 24px;
  font-weight: 700;
  flex-shrink: 0;
}

.sector-info { flex: 1; min-width: 0; }

.sector-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--navy-900);
  margin-bottom: 4px;
}

.sector-count {
  font-size: 13px;
  color: var(--slate-500);
}

.sector-arrow {
  color: var(--blue-500);
  font-size: 18px;
  transition: transform 0.2s ease;
}

.sector-card:hover .sector-arrow {
  transform: translateX(4px);
}

/* ===== CTA 区块 ===== */
.cta-section {
  padding: 100px 0;
  background: linear-gradient(135deg, var(--navy-900), var(--navy-700));
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 1200px;
  height: 600px;
  background: radial-gradient(ellipse, rgba(59, 130, 246, 0.12) 0%, transparent 60%);
  pointer-events: none;
}

.cta-inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.cta-title {
  font-size: 40px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.cta-desc {
  font-size: 17px;
  color: var(--slate-400);
  margin-bottom: 36px;
  line-height: 1.7;
}

.cta-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ===== 页脚 ===== */
.footer {
  background: var(--navy-900);
  color: var(--slate-400);
  padding: 72px 0 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
}

.footer-brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
}

.footer-brand-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--white);
}

.footer-brand-desc {
  font-size: 14px;
  line-height: 1.75;
  margin-bottom: 24px;
  color: var(--slate-500);
}

.footer-social {
  display: flex;
  gap: 10px;
}

.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--slate-400);
  transition: all 0.2s ease;
  font-size: 14px;
}

.footer-social a:hover {
  background: rgba(59, 130, 246, 0.2);
  color: var(--cyan-400);
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 20px;
}

.footer-col ul { list-style: none; }

.footer-col li { margin-bottom: 12px; }

.footer-col a {
  font-size: 13.5px;
  color: var(--slate-500);
  transition: color 0.2s ease;
}

.footer-col a:hover {
  color: var(--cyan-400);
}

.footer-contact p {
  font-size: 13.5px;
  margin-bottom: 12px;
  display: flex;
  align-items: flex-start;
  gap: 8px;
  line-height: 1.6;
}

.footer-bottom {
  padding: 24px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 13px;
  color: var(--slate-600);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

/* ===== 面包屑 ===== */
.breadcrumb {
  padding: 24px 0;
  background: var(--slate-100);
  border-bottom: 1px solid var(--slate-200);
}

.breadcrumb-inner {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  color: var(--slate-500);
}

.breadcrumb a { color: var(--slate-500); transition: color 0.2s; }
.breadcrumb a:hover { color: var(--blue-600); }
.breadcrumb .current { color: var(--navy-900); font-weight: 500; }
.breadcrumb-sep { color: var(--slate-400); }

/* ===== 子业务详情页 - 板块介绍 ===== */
.plate-intro {
  padding: 80px 0 60px;
  background: var(--white);
}

.plate-intro-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: center;
}

.plate-intro-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--navy-900);
  margin-bottom: 20px;
  line-height: 1.3;
}

.plate-intro-desc {
  font-size: 16px;
  line-height: 1.8;
  color: var(--slate-600);
  margin-bottom: 28px;
}

.plate-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.plate-feature {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px;
  background: var(--slate-100);
  border-radius: var(--radius-sm);
}

.plate-feature-icon {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  background: var(--green-500);
  color: var(--white);
  font-size: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 1px;
}

.plate-feature-text {
  font-size: 14px;
  color: var(--slate-700);
  font-weight: 500;
  line-height: 1.5;
}

.plate-intro-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.plate-stat-box {
  padding: 28px;
  background: linear-gradient(135deg, var(--navy-800), var(--navy-700));
  border-radius: var(--radius-lg);
  text-align: center;
}

.plate-stat-num {
  font-size: 36px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--blue-400), var(--cyan-400));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 6px;
  letter-spacing: -1px;
}

.plate-stat-label {
  font-size: 13px;
  color: var(--slate-400);
}

/* ===== 岗位智能体详情 ===== */
.agent-role-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
  margin-top: 24px;
}

.agent-role-card {
  padding: 22px;
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-md);
  transition: all 0.25s ease;
}

.agent-role-card:hover {
  border-color: var(--blue-400);
  box-shadow: var(--shadow-lg);
}

.agent-role-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.agent-role-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.12), rgba(14, 165, 233, 0.12));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.agent-role-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--navy-900);
}

.agent-role-body {
  font-size: 13px;
  color: var(--slate-600);
  line-height: 1.65;
  margin-bottom: 14px;
}

.agent-role-savings {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: linear-gradient(135deg, #ECFDF5, #D1FAE5);
  border-radius: 8px;
}

.agent-role-savings-label {
  font-size: 11.5px;
  color: var(--slate-600);
}

.agent-role-savings-amount {
  font-size: 15px;
  font-weight: 800;
  color: var(--green-500);
}

/* ===== 联系表单 ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.contact-info-item {
  display: flex;
  gap: 20px;
  margin-bottom: 28px;
  padding: 24px;
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-md);
  transition: all 0.25s ease;
}

.contact-info-item:hover {
  border-color: var(--blue-400);
  box-shadow: var(--shadow-md);
}

.contact-info-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(14, 165, 233, 0.1));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}

.contact-info-label {
  font-size: 13px;
  color: var(--slate-500);
  margin-bottom: 6px;
}

.contact-info-value {
  font-size: 18px;
  font-weight: 700;
  color: var(--navy-900);
}

.contact-form {
  background: var(--white);
  padding: 36px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--slate-200);
  box-shadow: var(--shadow-lg);
}

.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--navy-900);
  margin-bottom: 8px;
}

.form-input, .form-textarea, .form-select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--slate-300);
  border-radius: var(--radius-sm);
  font-size: 14.5px;
  font-family: inherit;
  color: var(--navy-900);
  background: var(--white);
  transition: all 0.2s ease;
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
  outline: none;
  border-color: var(--blue-500);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
  line-height: 1.6;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.btn-submit {
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, var(--blue-500), var(--cyan-500));
  color: var(--white);
  border: none;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-submit:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.35);
}

/* ===== 关于我们 ===== */
.about-hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.about-stat {
  text-align: center;
  padding: 24px 16px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
}

.about-stat-num {
  font-size: 36px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--blue-400), var(--cyan-400));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 6px;
}

.about-stat-label {
  font-size: 13.5px;
  color: var(--slate-400);
}

/* ===== 行业方案 ===== */
.industry-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
  gap: 28px;
}

.industry-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--slate-200);
  overflow: hidden;
  transition: all 0.3s ease;
}

.industry-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--blue-400);
}

.industry-banner {
  padding: 32px;
  background: linear-gradient(135deg, var(--navy-800), var(--navy-600));
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.industry-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.3), transparent 70%);
  border-radius: 50%;
}

.industry-icon {
  font-size: 40px;
  margin-bottom: 12px;
  position: relative;
}

.industry-title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 6px;
  position: relative;
}

.industry-sub {
  font-size: 13px;
  color: var(--slate-400);
  position: relative;
}

.industry-body {
  padding: 28px;
}

.industry-agents {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.industry-agent-tag {
  padding: 6px 12px;
  background: rgba(37, 99, 235, 0.08);
  color: var(--blue-600);
  font-size: 12.5px;
  font-weight: 500;
  border-radius: 6px;
}

.industry-value {
  padding: 16px;
  background: linear-gradient(135deg, #ECFDF5, #D1FAE5);
  border-radius: var(--radius-sm);
  margin-bottom: 18px;
}

.industry-value-label {
  font-size: 12px;
  color: var(--slate-600);
  margin-bottom: 4px;
}

.industry-value-text {
  font-size: 14px;
  color: var(--slate-700);
  font-weight: 600;
  line-height: 1.5;
}

.industry-savings {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  background: var(--slate-100);
  border-radius: var(--radius-sm);
}

.industry-savings-label {
  font-size: 13px;
  color: var(--slate-600);
  font-weight: 500;
}

.industry-savings-amount {
  font-size: 18px;
  font-weight: 800;
  color: var(--green-500);
}

/* ===== 客户价值 ===== */
.value-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.value-card {
  padding: 28px 20px;
  text-align: center;
  border-radius: var(--radius-md);
  background: var(--white);
  border: 1px solid var(--slate-200);
  transition: all 0.3s ease;
}

.value-card:hover {
  border-color: var(--blue-400);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.value-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(14, 165, 233, 0.1));
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 24px;
}

.value-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--navy-900);
  margin-bottom: 8px;
}

.value-desc {
  font-size: 13px;
  color: var(--slate-600);
  line-height: 1.6;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .hero-title { font-size: 40px; }
  .section-title { font-size: 32px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .stat-card:not(:last-child)::after { display: none; }
  .advantages-grid { grid-template-columns: 1fr; max-width: 500px; margin: 0 auto; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .plate-intro-grid { grid-template-columns: 1fr; gap: 32px; }
  .contact-grid { grid-template-columns: 1fr; gap: 32px; }
  .value-grid { grid-template-columns: repeat(2, 1fr); }
  .about-hero-stats { grid-template-columns: repeat(2, 1fr); }
  .cta-title { font-size: 32px; }
}

@media (max-width: 768px) {
  .nav-menu { display: none; }
  .nav-hamburger { display: flex; }
  .nav-inner { height: 60px; }
  .page-hero { padding: 110px 0 60px; }
  .hero-title { font-size: 30px; }
  .hero-subtitle { font-size: 16px; }
  .section { padding: 64px 0; }
  .section-title { font-size: 26px; }
  .section-desc { font-size: 15px; }
  .section-header { margin-bottom: 40px; }
  .biz-grid { grid-template-columns: 1fr; }
  .sub-biz-grid { grid-template-columns: 1fr; }
  .sector-grid { grid-template-columns: 1fr; }
  .industry-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .stat-number { font-size: 36px; }
  .stat-label { font-size: 13px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .plate-features { grid-template-columns: 1fr; }
  .plate-intro-title { font-size: 24px; }
  .form-row { grid-template-columns: 1fr; }
  .contact-form { padding: 24px; }
  .value-grid { grid-template-columns: 1fr; max-width: 320px; margin: 0 auto; }
  .about-hero-stats { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .about-stat-num { font-size: 28px; }
  .cta-title { font-size: 26px; }
  .cta-desc { font-size: 15px; }
  .btn { padding: 12px 24px; font-size: 14px; }
  .agent-role-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .hero-title { font-size: 26px; }
  .section-title { font-size: 22px; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
  .stat-card { padding: 20px 10px; }
  .stat-number { font-size: 30px; }
}