/* ==========================================================================
   蓝气球官网 2.0 全局样式系统
   规范：深空科技蓝 (#0A192F / #165DFF) + 现代 Bento Grid + 响应式精细交互
   ========================================================================== */

:root {
  /* 品牌核心色彩 */
  --primary: #165DFF;
  --primary-hover: #0E42D2;
  --primary-light: #E8F3FF;
  --primary-glow: rgba(22, 93, 255, 0.25);
  
  --dark-navy: #0A192F;
  --dark-surface: #0F223D;
  --dark-border: rgba(255, 255, 255, 0.12);
  
  /* 辅助功能色 */
  --accent-green: #00B42A;
  --accent-green-bg: #E8FFEA;
  --accent-orange: #FF7D00;
  --accent-orange-bg: #FFF7E8;
  
  /* 中性字色与背景 */
  --ink-primary: #1D2129;
  --ink-regular: #4E5969;
  --ink-secondary: #86909C;
  --ink-disabled: #C9CDD4;
  
  --bg-page: #FFFFFF;
  --bg-subtle: #F7F8FA;
  --bg-card: #FFFFFF;
  
  /* 边框与阴影 */
  --border-light: #E5E6EB;
  --border-focus: #165DFF;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 6px 18px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 12px 32px rgba(10, 25, 47, 0.08);
  --shadow-hover: 0 16px 36px rgba(22, 93, 255, 0.14);
  
  --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
}

/* 基础重置 */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  color: var(--ink-primary);
  background-color: var(--bg-page);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: all 0.2s ease;
}

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

.wrap {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* 按钮规范 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #165DFF 0%, #0E42D2 100%);
  color: #FFFFFF !important;
  box-shadow: 0 4px 14px rgba(22, 93, 255, 0.35);
}
.btn-primary:hover {
  background: linear-gradient(135deg, #2b6cff 0%, #165DFF 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(22, 93, 255, 0.45);
}

.btn-erp {
  background: linear-gradient(135deg, #00B42A 0%, #00871F 100%);
  color: #FFFFFF !important;
  box-shadow: 0 4px 14px rgba(0, 180, 42, 0.3);
}
.btn-erp:hover {
  background: linear-gradient(135deg, #12c93d 0%, #00a827 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 180, 42, 0.4);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.1);
  color: #FFFFFF !important;
  border: 1px solid rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.4);
  transform: translateY(-2px);
}

.btn-outline {
  background: #FFFFFF;
  color: var(--ink-primary);
  border: 1px solid var(--border-light);
}
.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-light);
}

.btn-lg {
  padding: 13px 26px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-md);
}

/* ==========================================================================
   顶部导航栏（现代化精细交互）
   ========================================================================== */
.hd {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-light);
  transition: all 0.3s ease;
}

.hd-in {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
.brand img {
  height: 40px;
  width: auto;
}
.brand-badge {
  font-size: 11px;
  color: var(--primary);
  background: var(--primary-light);
  padding: 3px 8px;
  border-radius: 999px;
  font-weight: 600;
  letter-spacing: 0.3px;
}

.nav {
  display: none;
}

.nav-link {
  font-size: 14.5px;
  color: var(--ink-primary);
  font-weight: 500;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-link:hover, .nav-link.on {
  color: var(--primary);
  background: var(--primary-light);
}

.nav-tag-erp {
  font-size: 10px;
  background: #E8FFEA;
  color: #00B42A;
  padding: 1px 6px;
  border-radius: 4px;
  font-weight: 700;
}

.dd {
  position: relative;
}
.dd-panel {
  display: none;
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1);
  padding: 8px;
  min-width: 180px;
  z-index: 100;
  transition: opacity 0.2s, transform 0.2s;
}
.dd:hover .dd-panel {
  display: block;
}
.dd-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 14px;
  font-size: 13.5px;
  color: var(--ink-regular);
  border-radius: var(--radius-sm);
}
.dd-link:hover, .dd-link.on {
  background: var(--bg-subtle);
  color: var(--primary);
}

.burger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  cursor: pointer;
}
.burger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink-primary);
  border-radius: 2px;
  transition: 0.3s;
}

.navt { display: none; }
.navt:checked ~ .nav {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: 68px;
  left: 0;
  right: 0;
  background: #FFFFFF;
  border-bottom: 1px solid var(--border-light);
  box-shadow: var(--shadow-lg);
  padding: 16px 24px 24px;
  gap: 8px;
}
.navt:checked ~ .nav .dd-panel {
  display: flex;
  flex-direction: column;
  position: static;
  transform: none;
  border: none;
  box-shadow: none;
  padding: 4px 0 4px 16px;
  background: var(--bg-subtle);
  border-radius: var(--radius-sm);
}

/* ==========================================================================
   Hero 首屏区（深空科技蓝）
   ========================================================================== */
.hero {
  position: relative;
  background: radial-gradient(120% 100% at 50% 0%, #112d59 0%, #0A192F 100%);
  color: #FFFFFF;
  padding: 68px 0 84px;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 48px;
  background: linear-gradient(180deg, transparent 0%, var(--bg-page) 100%);
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(22, 93, 255, 0.2);
  border: 1px solid rgba(22, 93, 255, 0.4);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 13px;
  color: #79A7FF;
  margin-bottom: 20px;
  backdrop-filter: blur(6px);
}
.hero-pill-dot {
  width: 8px;
  height: 8px;
  background: #00B42A;
  border-radius: 50%;
  box-shadow: 0 0 10px #00B42A;
}

.hero-title {
  font-size: 32px;
  line-height: 1.28;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 18px;
}
.hero-title span {
  background: linear-gradient(135deg, #79A7FF 0%, #00F0FF 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 15.5px;
  color: #A3B5CC;
  max-width: 720px;
  line-height: 1.7;
  margin-bottom: 30px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 44px;
}

.hero-platforms {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  padding-top: 22px;
  border-top: 1px solid var(--dark-border);
}
.hero-platforms-label {
  font-size: 13px;
  color: #6C829E;
}
.hero-plat-icons {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.hero-plat-icons img {
  height: 30px;
  width: auto;
  border-radius: 6px;
  background: #FFFFFF;
  padding: 2px 6px;
  transition: transform 0.2s;
}
.hero-plat-icons img:hover {
  transform: translateY(-2px);
}

/* ==========================================================================
   通用页面标头（子页面 Hero）
   ========================================================================== */
.page-hero {
  background: linear-gradient(180deg, #F0F5FF 0%, #FFFFFF 100%);
  padding: 48px 0 36px;
  border-bottom: 1px solid var(--border-light);
}
.crumb {
  font-size: 13px;
  color: var(--ink-secondary);
  margin-bottom: 12px;
}
.crumb a {
  color: var(--ink-regular);
}
.crumb a:hover {
  color: var(--primary);
}
.page-hero h1 {
  font-size: 28px;
  font-weight: 700;
  color: var(--ink-primary);
  line-height: 1.3;
}
.ph-sub {
  font-size: 15px;
  color: var(--ink-regular);
  margin-top: 8px;
}

/* 数字指标条 */
.stat-bar {
  margin-top: -32px;
  position: relative;
  z-index: 20;
}
.stat-card {
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-light);
  padding: 24px 32px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.stat-item {
  display: flex;
  flex-direction: column;
}
.stat-num {
  font-size: 32px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
}
.stat-num em {
  font-style: normal;
  font-size: 18px;
  margin-left: 2px;
}
.stat-label {
  font-size: 13.5px;
  color: var(--ink-regular);
  margin-top: 4px;
}

/* ==========================================================================
   通用 Section 规范
   ========================================================================== */
.sec {
  padding: 72px 0;
}
.sec-subtle {
  background-color: var(--bg-subtle);
}
.sec-dark {
  background-color: var(--dark-navy);
  color: #FFFFFF;
}

.sec-head {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 48px;
}
.sec-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-light);
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 12px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}
.sec-tag-green {
  color: #00B42A;
  background: #E8FFEA;
}
.sec-title {
  font-size: 26px;
  font-weight: 700;
  color: var(--ink-primary);
  line-height: 1.35;
  margin-bottom: 10px;
}
.sec-dark .sec-title {
  color: #FFFFFF;
}
.sec-desc {
  font-size: 14.5px;
  color: var(--ink-regular);
  line-height: 1.6;
}
.sec-dark .sec-desc {
  color: #8D9FAF;
}

/* ==========================================================================
   Bento Grid 双引擎模块
   ========================================================================== */
.dual-engine-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.engine-card {
  background: #FFFFFF;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  padding: 32px 28px;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
}
.engine-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.engine-erp {
  background: linear-gradient(180deg, #FAFCFA 0%, #FFFFFF 100%);
  border-top: 4px solid var(--accent-green);
}
.engine-agency {
  background: linear-gradient(180deg, #F8FAFF 0%, #FFFFFF 100%);
  border-top: 4px solid var(--primary);
}

.engine-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 16px;
}
.engine-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--ink-primary);
}
.engine-badge {
  font-size: 11.5px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 6px;
}
.badge-green {
  background: var(--accent-green-bg);
  color: var(--accent-green);
}
.badge-blue {
  background: var(--primary-light);
  color: var(--primary);
}

.engine-lead {
  font-size: 14.5px;
  color: var(--ink-regular);
  margin-bottom: 20px;
}

.engine-features {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-bottom: 28px;
}
.engine-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13.5px;
  color: var(--ink-primary);
  line-height: 1.5;
}
.engine-features li svg {
  flex-shrink: 0;
  margin-top: 3px;
}

.engine-footer {
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

/* ==========================================================================
   聚财 ERP 专题深空板块
   ========================================================================== */
.erp-showcase {
  background: linear-gradient(180deg, #0A192F 0%, #081426 100%);
  color: #FFFFFF;
}

.erp-qa-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: 36px;
}

.erp-qa-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  padding: 22px;
  transition: all 0.2s;
}
.erp-qa-card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(0, 180, 42, 0.4);
  transform: translateY(-2px);
}
.erp-qa-num {
  font-size: 12.5px;
  font-weight: 700;
  color: #00B42A;
  margin-bottom: 6px;
}
.erp-qa-q {
  font-size: 16px;
  font-weight: 600;
  color: #FFFFFF;
  margin-bottom: 8px;
}
.erp-qa-a {
  font-size: 13.5px;
  color: #A3B5CC;
  line-height: 1.6;
}

.erp-banner-box {
  background: radial-gradient(100% 100% at 50% 0%, #112F4C 0%, #0D2238 100%);
  border: 1px solid rgba(0, 180, 42, 0.3);
  border-radius: var(--radius-xl);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  align-items: center;
  text-align: center;
}
.erp-banner-text h3 {
  font-size: 20px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 6px;
}
.erp-banner-text p {
  font-size: 13.5px;
  color: #92AEC7;
}

/* ==========================================================================
   案例分类导航与全量案例画廊系统 (Case Gallery)
   ========================================================================== */
.case-filter-nav {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}
.case-tab-btn {
  padding: 8px 18px;
  font-size: 14px;
  border-radius: 999px;
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  color: var(--ink-regular);
  cursor: pointer;
  transition: all 0.2s;
  font-weight: 500;
}
.case-tab-btn:hover, .case-tab-btn.active {
  background: var(--primary);
  color: #FFFFFF !important;
  border-color: var(--primary);
  box-shadow: 0 4px 12px rgba(22, 93, 255, 0.25);
}

.case-matrix {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

/* 丰富多样的瀑布流与画廊卡片 */
.case-gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 22px;
}

.gallery-card {
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
  cursor: pointer;
  position: relative;
}
.gallery-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(22, 93, 255, 0.4);
}
.gallery-card-thumb {
  height: 240px;
  overflow: hidden;
  background: #EEF2F8;
  position: relative;
}
.gallery-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
  transition: transform 0.4s;
}
.gallery-card:hover .gallery-card-thumb img {
  transform: scale(1.06);
}
.gallery-tag-float {
  position: absolute;
  top: 10px;
  left: 10px;
  background: rgba(10, 25, 47, 0.82);
  backdrop-filter: blur(4px);
  color: #FFFFFF;
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 4px;
  font-weight: 500;
  z-index: 2;
}
.gallery-zoom-icon {
  position: absolute;
  bottom: 10px;
  right: 10px;
  width: 32px;
  height: 32px;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
  opacity: 0;
  transform: translateY(6px);
  transition: all 0.25s;
  z-index: 2;
}
.gallery-card:hover .gallery-zoom-icon {
  opacity: 1;
  transform: translateY(0);
}

.gallery-card-body {
  padding: 16px 18px 18px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}
.gallery-card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-primary);
  margin-bottom: 6px;
  line-height: 1.4;
}
.gallery-card-desc {
  font-size: 12.5px;
  color: var(--ink-regular);
  line-height: 1.5;
  margin-bottom: 12px;
}
.gallery-card-foot {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 10px;
  border-top: 1px solid var(--border-light);
  font-size: 12px;
  color: var(--primary);
  font-weight: 500;
}

/* ==========================================================================
   案例深度复盘页样式（战报拆解 + 沉浸式 Mockup 视窗展台）
   ========================================================================== */
.case-detail-wrap {
  max-width: 1000px;
  margin: 0 auto;
}

.case-report-bento {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: 40px;
}
.case-report-card {
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 22px;
  box-shadow: var(--shadow-sm);
}
.case-report-card h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-primary);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.case-report-card p {
  font-size: 13.5px;
  color: var(--ink-regular);
  line-height: 1.6;
}

.case-gallery-head {
  text-align: center;
  margin-bottom: 28px;
}
.case-gallery-head h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--ink-primary);
}
.case-gallery-head p {
  font-size: 13.5px;
  color: var(--ink-secondary);
  margin-top: 6px;
}

/* 沉浸式详情页视窗容器 Mockup Window */
.mockup-window {
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  margin-bottom: 36px;
  transition: all 0.3s;
}
.mockup-window:hover {
  box-shadow: var(--shadow-hover);
}

.mockup-bar {
  background: #F0F2F5;
  border-bottom: 1px solid var(--border-light);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.mockup-dots {
  display: flex;
  gap: 6px;
}
.mockup-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: block;
}
.dot-red { background: #FF5F56; }
.dot-yellow { background: #FFBD2E; }
.dot-green { background: #27C93F; }

.mockup-title {
  font-size: 12.5px;
  font-weight: 500;
  color: var(--ink-regular);
}
.mockup-action-tip {
  font-size: 11.5px;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 4px;
}

/* 具有固定高度、可丝滑滚动的长图视窗 */
.mockup-viewport {
  height: 520px;
  overflow-y: auto;
  overflow-x: hidden;
  position: relative;
  background: #F8F9FB;
  cursor: grab;
}
.mockup-viewport::-webkit-scrollbar {
  width: 6px;
}
.mockup-viewport::-webkit-scrollbar-track {
  background: #F0F2F5;
}
.mockup-viewport::-webkit-scrollbar-thumb {
  background: #C9CDD4;
  border-radius: 3px;
}
.mockup-viewport::-webkit-scrollbar-thumb:hover {
  background: var(--primary);
}
.mockup-viewport img {
  width: 100%;
  height: auto;
  display: block;
  cursor: zoom-in;
}

.mockup-footer {
  padding: 14px 20px;
  background: #FFFFFF;
  border-top: 1px solid var(--border-light);
  font-size: 13px;
  color: var(--ink-regular);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

/* 全屏 Lightbox 弹窗 */
.lightbox-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(10, 25, 47, 0.94);
  z-index: 9999;
  backdrop-filter: blur(10px);
  padding: 20px;
  align-items: center;
  justify-content: center;
}
.lightbox-modal.active {
  display: flex;
}
.lightbox-content {
  max-width: 92vw;
  max-height: 92vh;
  overflow-y: auto;
  background: #FFFFFF;
  border-radius: var(--radius-md);
  position: relative;
  box-shadow: 0 20px 60px rgba(0,0,0,0.6);
}
.lightbox-content img {
  width: 100%;
  height: auto;
  display: block;
}
.lightbox-close {
  position: fixed;
  top: 24px;
  right: 28px;
  width: 44px;
  height: 44px;
  background: rgba(255,255,255,0.2);
  color: #FFFFFF;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 26px;
  border: 1px solid rgba(255,255,255,0.4);
  z-index: 10000;
  transition: all 0.2s;
}
.lightbox-close:hover {
  background: #FF5F56;
  border-color: #FF5F56;
}

/* ==========================================================================
   优势与团队背书
   ========================================================================== */
.adv-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}
.adv-card {
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 22px;
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.adv-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.adv-info h4 {
  font-size: 15.5px;
  font-weight: 600;
  color: var(--ink-primary);
  margin-bottom: 4px;
}
.adv-info p {
  font-size: 13px;
  color: var(--ink-regular);
  line-height: 1.6;
}

/* ==========================================================================
   全局 CTA 留资转化区
   ========================================================================== */
.cta-section {
  background: linear-gradient(135deg, #0A192F 0%, #165DFF 100%);
  color: #FFFFFF;
  padding: 68px 0;
  position: relative;
  overflow: hidden;
}
.cta-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: center;
}
.cta-left h2 {
  font-size: 26px;
  font-weight: 700;
  margin-bottom: 12px;
  line-height: 1.3;
}
.cta-left p {
  font-size: 14.5px;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 22px;
  line-height: 1.6;
}
.cta-direct {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 13.5px;
}
.cta-direct-item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #FFFFFF;
}

.cta-form-card {
  background: #FFFFFF;
  border-radius: var(--radius-xl);
  padding: 30px 24px;
  color: var(--ink-primary);
  box-shadow: var(--shadow-lg);
}
.cta-form-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 4px;
}
.cta-form-sub {
  font-size: 12.5px;
  color: var(--ink-secondary);
  margin-bottom: 18px;
}

.form-group {
  margin-bottom: 14px;
}
.form-label {
  display: block;
  font-size: 12.5px;
  font-weight: 600;
  margin-bottom: 5px;
  color: var(--ink-primary);
}
.form-control {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  color: var(--ink-primary);
  outline: none;
  transition: all 0.2s;
  font-family: inherit;
}
.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(22, 93, 255, 0.12);
}

.radio-group {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.radio-chip {
  position: relative;
}
.radio-chip input {
  position: absolute;
  opacity: 0;
}
.radio-chip span {
  display: block;
  padding: 6px 11px;
  font-size: 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-light);
  background: var(--bg-subtle);
  color: var(--ink-regular);
  cursor: pointer;
  transition: 0.2s;
}
.radio-chip input:checked + span {
  background: var(--primary-light);
  border-color: var(--primary);
  color: var(--primary);
  font-weight: 600;
}

/* ==========================================================================
   精炼页脚 Footer
   ========================================================================== */
.ft {
  background: #081220;
  color: #8D9FAF;
  padding: 56px 0 24px;
  font-size: 13.5px;
}
.ft-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-bottom: 40px;
}
.ft-brand-logo {
  height: 40px;
  width: auto;
  margin-bottom: 14px;
  background: #FFFFFF;
  padding: 4px 8px;
  border-radius: 6px;
}
.ft-col h4 {
  font-size: 14.5px;
  font-weight: 600;
  color: #FFFFFF;
  margin-bottom: 14px;
}
.ft-col a, .ft-col p {
  display: block;
  font-size: 13px;
  color: #8D9FAF;
  margin-bottom: 7px;
}
.ft-col a:hover {
  color: #FFFFFF;
}

.ft-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 12px;
  color: #617385;
}
.ft-bottom a:hover {
  color: #FFFFFF;
}

/* ==========================================================================
   响应式媒体查询（桌面端适配）
   ========================================================================== */
@media (min-width: 860px) {
  .burger { display: none; }
  .nav {
    display: flex !important;
    position: static;
    flex-direction: row;
    align-items: center;
    gap: 18px;
    background: none;
    border: none;
    box-shadow: none;
    padding: 0;
  }
  .nav-cta {
    margin-left: 8px;
  }
  
  .hero {
    padding: 88px 0 100px;
  }
  .hero-title {
    font-size: 44px;
  }
  .hero-desc {
    font-size: 17px;
  }
  
  .stat-card {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .dual-engine-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .erp-qa-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .erp-banner-box {
    flex-direction: row;
    text-align: left;
    justify-content: space-between;
  }
  
  .case-matrix {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .case-report-bento {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .adv-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .cta-grid {
    grid-template-columns: 1fr 1fr;
  }
  
  .ft-grid {
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  }
  
  .mockup-viewport {
    height: 600px;
  }
}

/* 兼容保留：案例矩阵卡片（首页与旧版案例卡片使用） */
.case-item {
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s;
  display: flex;
  flex-direction: column;
  color: inherit;
  cursor: pointer;
}
.case-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(22, 93, 255, 0.4);
}
.case-thumb {
  height: 220px;
  overflow: hidden;
  background: #EEF2F8;
  position: relative;
}
.case-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
  transition: transform 0.4s;
}
.case-item:hover .case-thumb img {
  transform: scale(1.04);
}
.case-tag-float {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(10, 25, 47, 0.85);
  backdrop-filter: blur(4px);
  color: #FFFFFF;
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 4px;
}

.case-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}
.case-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--ink-secondary);
  margin-bottom: 8px;
}
.case-name {
  font-size: 16.5px;
  font-weight: 600;
  color: var(--ink-primary);
  margin-bottom: 8px;
}
.case-desc {
  font-size: 13px;
  color: var(--ink-regular);
  line-height: 1.5;
  margin-bottom: 16px;
}
.case-foot {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 12px;
  border-top: 1px solid var(--border-light);
  font-size: 13px;
  color: var(--primary);
  font-weight: 500;
}

/* 兼容保留：页脚隐私/备案链接组 */
.ft-legal {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
}

/* ==========================================================================
   页头标头统一美化（面包屑 + 页面标题）—— 8 个子页面共用
   2026-10-29 定稿：居中排布（中轴线 + 标题下短蓝线），与板块标题 .sec-head
   同一套语言；此前 .page-hero / .crumb / .ph-sub 无样式，为浏览器默认裸渲染
   ========================================================================== */
.page-hero {
  background:
    radial-gradient(circle at 50% -25%, rgba(22, 93, 255, 0.11) 0%, transparent 46%),
    radial-gradient(circle at -6% 130%, rgba(22, 93, 255, 0.05) 0%, transparent 42%),
    linear-gradient(168deg, #F0F6FF 0%, #FFFFFF 62%);
  border-bottom: 1px solid var(--border-light);
  padding: 50px 0 54px;
  position: relative;
  overflow: hidden;
  text-align: center;
}
/* 左右对称装饰圆环，配合中轴线平衡 */
.page-hero::before,
.page-hero::after {
  content: "";
  position: absolute;
  width: 280px;
  height: 280px;
  border: 1.5px dashed rgba(22, 93, 255, 0.15);
  border-radius: 50%;
  pointer-events: none;
}
.page-hero::before { left: -110px; bottom: -140px; }
.page-hero::after { right: -110px; top: -140px; }
.page-hero .wrap { position: relative; z-index: 1; }
.crumb {
  display: inline-flex;
  align-items: center;
  font-size: 13px;
  color: var(--ink-secondary);
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: 999px;
  padding: 5px 14px;
  margin-bottom: 20px;
  box-shadow: var(--shadow-sm);
}
.crumb a { color: var(--primary); text-decoration: none; font-weight: 500; }
.crumb a:hover { text-decoration: underline; }
.page-hero h1 {
  font-size: 36px;
  font-weight: 800;
  color: var(--ink-primary);
  letter-spacing: -0.01em;
  line-height: 1.3;
  margin: 0;
}
/* 标题下短蓝线：居中版的视觉落点，替代原先的左侧竖条 */
.page-hero h1::after {
  content: "";
  display: block;
  width: 44px;
  height: 3px;
  border-radius: 2px;
  background: linear-gradient(90deg, #165DFF 0%, #4096FF 100%);
  margin: 16px auto 0;
}
.ph-sub {
  font-size: 15px;
  color: var(--ink-regular);
  line-height: 1.75;
  max-width: 700px;
  margin: 16px auto 0;
}
@media (max-width: 768px) {
  .page-hero { padding: 36px 0 40px; }
  .page-hero h1 { font-size: 22px; line-height: 1.42; }
  .page-hero h1::after { margin-top: 12px; }
  .ph-sub { font-size: 13.5px; margin-top: 12px; }
  .page-hero::before,
  .page-hero::after { display: none; }
}

/* ==========================================================================
   手机端打磨层（≤640px）：压缩板块留白 / 缩高 CTA / 加大触控目标 /
   详情长图视口改自适应高度（小屏不空耗一大段）
   ========================================================================== */
@media (max-width: 640px) {
  .sec { padding: 52px 0; }
  .cta-section { padding: 46px 0; }
  .mockup-viewport { height: 62vh; min-height: 360px; }
  .ft-grid { gap: 26px; margin-bottom: 30px; }
  .ft-col a, .ft-col p { margin-bottom: 9px; }
  .filter-pills .filter-pill { padding: 10px 16px; font-size: 14px; }
}

/* ==========================================================================
   页脚品牌栏 · 蓝气球电商（2026-10-29 按设计方向重构：白底圆角 logo 块 +
   白粗体名称 + 字距副标 + 蓝色标语行 + 灰蓝描述 + ✓ 检核 chips）
   ========================================================================== */
.ft-brand-head { display: flex; align-items: center; gap: 14px; margin-bottom: 18px; }
.ft-brand-logo-box {
  display: flex; align-items: center; justify-content: center;
  width: 56px; height: 56px; background: #FFFFFF; border-radius: 14px;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.28); flex: 0 0 auto;
}
.ft-brand-logo-box img { width: 42px; height: 42px; object-fit: contain; display: block; }
.ft-brand-name b { display: block; font-size: 20px; font-weight: 800; color: #FFFFFF; letter-spacing: 0.5px; }
.ft-brand-name span { display: block; font-size: 11px; font-weight: 600; letter-spacing: 3px; color: #7E8FA6; margin-top: 3px; }
.ft-brand-slogan { font-size: 15px; font-weight: 700; color: #4D9FFF; margin: 0 0 10px; }
.ft-brand-desc { font-size: 13.5px; line-height: 1.9; color: #8D9FAF; margin: 0 0 18px; }
.ft-brand-chips { display: flex; flex-wrap: wrap; gap: 10px; }
.ft-brand-chips span {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 12.5px; font-weight: 600; color: #C9D6E3;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px; padding: 7px 14px; white-space: nowrap;
}

/* ==========================================================================
   页脚品牌栏微调（2026-10-29 用户反馈）：① 「蓝气球电商」在英文 BLUE BALLOON
   上方水平居中（负字距补偿末位空隙）；② 三枚 ✓ chips 收紧尺寸强制一排，
   与右侧三列视觉节奏对齐；窄屏自动回退换行
   ========================================================================== */
.ft-brand-name { text-align: center; }
.ft-brand-name span { margin-right: -3px; }
.ft-brand-chips { flex-wrap: nowrap; gap: 7px; }
.ft-brand-chips span { font-size: 11.5px; padding: 5px 10px; gap: 5px; }
@media (min-width: 860px) {
  /* 品牌列由 1.5fr 加宽到 1.7fr，保证三枚 chips 一排不溢出 */
  .ft-grid { grid-template-columns: 1.7fr 1fr 1fr 1.2fr; }
}
@media (max-width: 859px) {
  .ft-brand-chips { flex-wrap: wrap; }
  .ft-brand-chips span { font-size: 12.5px; padding: 7px 14px; }
}

/* ==========================================================================
   页脚微信二维码（2026-10-30）：B2B 客户习惯加微信，联系栏内联展示二维码
   ========================================================================== */
.ft-qr { margin-top: 16px; display: flex; align-items: center; gap: 12px; }
.ft-qr img {
  width: 104px; height: 104px; border-radius: 12px;
  background: #FFFFFF; padding: 5px; box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
  flex: 0 0 auto;
}
.ft-qr span { font-size: 12.5px; color: #8D9FAF; font-weight: 600; line-height: 1.7; }

/* ==========================================================================
   无人机航拍展台 2×2（2026-10-30）：桌面两列宽幅展示，窄屏回落单列
   ========================================================================== */
.gallery-grid-2col { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 760px) {
  .gallery-grid-2col { grid-template-columns: 1fr; }
}

/* ==========================================================================
   案例展台四标签筛选（2026-10-30）：静物实拍 / 主图设计 / 详情页制版 / 航拍视频
   ========================================================================== */
.gal-tabs {
  display: flex; flex-wrap: wrap; gap: 10px; justify-content: center;
  margin-bottom: 28px;
}
.gal-tab {
  border: 1.5px solid #D5DEEA; background: #FFFFFF; color: #3D4A5C;
  font-size: 14px; font-weight: 600; padding: 9px 22px; border-radius: 999px;
  cursor: pointer; transition: all 0.2s; font-family: inherit;
}
.gal-tab:hover { border-color: #165DFF; color: #165DFF; }
.gal-tab.active {
  background: linear-gradient(135deg, #0A192F, #165DFF);
  border-color: transparent; color: #FFFFFF;
  box-shadow: 0 6px 18px rgba(22, 93, 255, 0.28);
}
.gal-panel { display: none; }
.gal-panel.active { display: block; animation: galFade 0.35s ease; }
@keyframes galFade {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: none; }
}
.gal-video-card video {
  width: 100%; height: 100%; object-fit: cover; display: block;
}
.gal-video-card .gallery-zoom-icon { display: none; }
.gal-play-badge {
  position: absolute; bottom: 10px; left: 10px;
  background: rgba(255, 255, 255, 0.92); color: #0A192F;
  font-size: 11.5px; font-weight: 700; padding: 5px 10px;
  border-radius: 999px; z-index: 2;
}
.gal-live-dot {
  display: inline-block; width: 7px; height: 7px; border-radius: 50%;
  background: #2ED573; margin-right: 6px; animation: galBlink 1.6s infinite;
}
@keyframes galBlink { 50% { opacity: 0.35; } }
.gal-sublabel {
  margin: 0 0 16px; font-size: 13px; font-weight: 700;
  color: #7B8A9C; letter-spacing: 1px;
}
.gal-sublabel:not(:first-child) { margin-top: 26px; }
@media (max-width: 640px) {
  .gal-tab { font-size: 13px; padding: 8px 15px; }
}

/* ==========================================================================
   浮层微信咨询（2026-10-30）：右下角悬浮，点击弹出二维码
   ========================================================================== */
.wx-fab {
  position: fixed; right: 18px; bottom: 24px; z-index: 90;
  display: flex; flex-direction: column; align-items: flex-end; gap: 10px;
}
.wx-fab-btn {
  display: inline-flex; align-items: center; gap: 7px;
  border: none; cursor: pointer; font-family: inherit;
  background: linear-gradient(135deg, #07C160, #06AD56); color: #FFFFFF;
  font-size: 14px; font-weight: 600; padding: 11px 18px; border-radius: 999px;
  box-shadow: 0 8px 22px rgba(7,193,96,.38);
  transition: transform .2s, box-shadow .2s;
}
.wx-fab-btn:hover { transform: translateY(-2px); box-shadow: 0 12px 26px rgba(7,193,96,.45); }
.wx-fab-pop {
  display: none; background: #FFFFFF; border-radius: 14px;
  box-shadow: 0 12px 34px rgba(10,25,47,.18); padding: 14px 14px 10px; text-align: center;
}
.wx-fab.open .wx-fab-pop { display: block; }
.wx-fab-pop img { width: 150px; height: 150px; display: block; border-radius: 10px; }
.wx-fab-pop p { margin: 8px 0 2px; font-size: 12px; color: var(--ink-secondary, #6B7A8C); font-weight: 600; }
@media (max-width: 760px) {
  .wx-fab { right: 12px; bottom: 16px; }
  .wx-fab-btn { padding: 10px 14px; font-size: 13px; }
  .wx-fab-pop img { width: 132px; height: 132px; }
}

/* 锚点定位避开吸顶导航 */
.engine-card { scroll-margin-top: 96px; }

/* ==========================================================================
   页头品牌区升级（2026-10-30）：logo + 中英文标准字 + 分隔线，解决「小气」观感
   ========================================================================== */
.brand img { height: 38px; }
.brand-name {
  display: flex; flex-direction: column; align-items: center; text-align: center;
  line-height: 1.1;
  font-size: 16.5px; font-weight: 800; color: var(--ink-primary);
  letter-spacing: 1px; white-space: nowrap;
}
.brand-en {
  font-size: 8px; font-weight: 600; letter-spacing: 2px;
  color: var(--ink-secondary); margin-top: 3px; font-family: Inter, "PingFang SC", sans-serif;
}
.brand-sep {
  width: 1px; height: 22px; background: var(--border-light);
  margin: 0 4px; flex-shrink: 0;
}
.brand-badge {
  font-size: 11.5px; padding: 3px 10px;
  border: 1px solid rgba(22, 93, 255, 0.22);
  white-space: nowrap;
}
@media (max-width: 760px) {
  .brand-en { display: none; }
  .brand-name { font-size: 14px; }
  .brand img { height: 32px; }
  .brand-sep { height: 18px; }
}


/* ==========================================================================
   页脚与首页版完全统一（2026-10-30）：栏宽/间距/字号对齐 home.css
   ========================================================================== */
.ft-grid { grid-template-columns: 2fr 1fr 1fr 1.3fr; gap: 48px; margin-bottom: 48px; }
.ft-bottom { padding-top: 28px; }
.ft-col h4 { font-weight: 700; margin-bottom: 18px; letter-spacing: 0.5px; }
.ft-col a { font-size: 13.5px; color: #94A3B8; margin-bottom: 12px; }
.ft-col a:hover { color: #00D4FF; }
.ft-col p { font-size: 13.5px; line-height: 1.85; margin-bottom: 6px; }
.ft-brand-name { text-align: left; }
.ft-brand-name span { margin-right: 0; }
@media (max-width: 860px) {
  .ft-grid { grid-template-columns: 1fr; gap: 32px; margin-bottom: 40px; }
}