/* ========================================
   创翌霏凡 — 全局样式
   亮青蓝现代商务科技风（主色取自 logo #15B0ED）
   ======================================== */

/* --- CSS 自定义属性 --- */
:root {
  /* 配色（取自创翌霏凡 logo） */
  --color-primary: #15B0ED;        /* logo 原色，主色 */
  --color-primary-dark: #0E8FC0;   /* 主色加深，hover */
  --color-primary-deeper: #0F2F3F; /* 深青蓝，标题 */
  --color-accent: #0891b2;         /* 辅助青 */

  /* 文字色（取自 logo 文字灰） */
  --color-heading: #0F2F3F;        /* 深青蓝标题 */
  --color-text: #5F5D5D;           /* logo 原灰，正文 */
  --color-text-light: #7a7878;     /* 浅灰辅助 */
  --color-text-muted: #9ca3af;     /* 更浅灰 */

  /* 背景 */
  --color-bg: #ffffff;
  --color-bg-soft: #fafbfc;        /* 浅灰区块背景 */
  --color-bg-tint: #f5fbfe;        /* 极浅青蓝底 */
  --color-white: #ffffff;

  /* 边框 */
  --color-border: #e2e8f0;
  --color-border-tint: #d4eefb;    /* 青蓝细边框 */
  --color-border-light: #f1f5f9;

  /* 深色块 */
  --color-dark-bg: #0F2F3F;        /* Footer 等深色区 */
  --color-dark-bg-soft: #1a3a4d;

  /* 渐变 */
  --gradient-primary: linear-gradient(180deg, #e8f7fe 0%, #f5fcff 60%, #ffffff 100%);
  --gradient-hero: linear-gradient(135deg, #e8f7fe 0%, #f0fbff 100%);

  /* 圆角（商务风，克制） */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-full: 999px;

  /* 阴影 */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 2px 8px rgba(21, 176, 237, 0.06);
  --shadow-lg: 0 4px 16px rgba(21, 176, 237, 0.1);
  --shadow-btn: 0 2px 8px rgba(21, 176, 237, 0.3);

  /* 间距（大气留白） */
  --spacing-xs: 10px;
  --spacing-sm: 18px;
  --spacing-md: 24px;
  --spacing-lg: 40px;
  --spacing-xl: 64px;
  --spacing-2xl: 88px;

  /* 布局 */
  --max-width: 1280px;
  --header-height: 68px;

  /* 字体 */
  --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  --font-hero: 76px;
  --font-section: 40px;
  --font-card-title: 22px;
  --font-body: 17px;
  --font-small: 14px;

  /* 过渡 */
  --transition: 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

/* 锚点跳转留出顶部 header 高度 */
section[id] {
  scroll-margin-top: var(--header-height);
}

body {
  font-family: var(--font-family);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

a {
  color: var(--color-primary-dark);
  text-decoration: none;
  transition: color var(--transition);
}

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

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

ul {
  list-style: none;
}

/* --- Banner 鼠标随动动效 canvas（5 种，由 js/banner-fx.js 驱动） --- */
canvas.banner-fx {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* --- 容器 --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* --- 章节 --- */
.section {
  padding: var(--spacing-xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.section-title {
  font-size: var(--font-section);
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: var(--spacing-sm);
}

.section-subtitle {
  font-size: var(--font-body);
  color: var(--color-text);
  max-width: 640px;
  margin: 0 auto;
}

/* --- 排版 --- */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-heading);
  line-height: 1.3;
}

/* ========================================
   组件样式
   ======================================== */

/* --- 卡片（商务风：白底 + 细灰边框 + 顶部青蓝线） --- */
.glass-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-primary);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.glass-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-top-color: var(--color-primary-dark);
}

.glass-card .card-icon {
  font-size: 36px;
  margin-bottom: var(--spacing-sm);
}

.glass-card .card-title {
  font-size: var(--font-card-title);
  font-weight: 600;
  color: var(--color-heading);
  margin-bottom: var(--spacing-xs);
}

.glass-card .card-desc {
  font-size: var(--font-small);
  color: var(--color-text);
  line-height: 1.7;
}

/* --- 按钮 --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  text-decoration: none;
  white-space: nowrap;
  font-family: var(--font-family);
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-btn);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  color: #fff;
}

.btn-outline {
  background: var(--color-white);
  border: 1px solid var(--color-primary);
  color: var(--color-primary-dark);
}

.btn-outline:hover {
  background: var(--color-bg-tint);
  color: var(--color-primary);
}

.btn-link {
  background: transparent;
  color: var(--color-primary-dark);
  padding: 12px 20px;
}

.btn-link:hover {
  color: var(--color-primary);
}

/* --- 标签 --- */
.tag {
  display: inline-block;
  padding: 4px 14px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 500;
  background: var(--color-bg-tint);
  color: var(--color-primary-dark);
  border: 1px solid var(--color-border-tint);
}

/* --- 编号步骤 --- */
.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--color-primary);
  color: #fff;
  font-weight: 700;
  font-size: 16px;
  margin-bottom: var(--spacing-sm);
}

/* ========================================
   导航栏
   ======================================== */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 2px solid var(--color-primary);
  transition: box-shadow var(--transition);
}

.header.scrolled {
  box-shadow: 0 2px 12px rgba(15, 47, 63, 0.08);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  height: 100%;
}

/* 页眉联合品牌 Logo：长版画幅，独立于 favicon / 资料封面的基础 Logo */
.header-brand {
  display: block;
  flex: 0 0 auto;
  line-height: 0;
  transform: translateX(-36px);
}

.header-logo-img {
  display: block;
  width: 300px;
  height: auto;
  max-width: none;
  transform: translateY(2px);
}

.header-logo {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-heading);
  white-space: nowrap;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 20px;
}

.header-nav a {
  color: var(--color-text);
  font-size: 14px;
  font-weight: 500;
  padding: 8px 0;
  position: relative;
  transition: color var(--transition);
}

.header-nav a:hover,
.header-nav a.active {
  color: var(--color-primary-dark);
}

.header-nav > a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 20px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 1px;
  transition: transform var(--transition);
}

.header-nav > a:hover::after,
.header-nav > a.active::after {
  transform: translateX(-50%) scaleX(1);
}

/* --- 下拉菜单 --- */
.has-dropdown {
  position: relative;
}

.has-dropdown > a::after {
  content: '▾';
  font-size: 13px;
  margin-left: 5px;
  vertical-align: middle;
  opacity: 0.7;
}

.dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-xs) 0;
  min-width: 170px;
  box-shadow: 0 8px 24px rgba(15, 47, 63, 0.1);
  opacity: 0;
  visibility: hidden;
  transition: all 0.2s ease;
}

.has-dropdown:hover .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(4px);
}

.dropdown a {
  display: block;
  padding: 10px 20px;
  font-size: 13px;
  color: var(--color-text) !important;
  white-space: nowrap;
}

.dropdown a:hover {
  background: var(--color-bg-tint);
  color: var(--color-primary-dark) !important;
}

/* 下拉中暂未开放详情页的占位项（不可点击，复用下拉项视觉） */
.dropdown-item {
  display: block;
  padding: 10px 20px;
  font-size: 13px;
  color: var(--color-text-muted);
  white-space: nowrap;
  cursor: default;
  user-select: none;
}

/* --- 导航右侧 --- */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.header-phone {
  font-size: var(--font-small);
  color: var(--color-primary-dark);
  font-weight: 600;
  white-space: nowrap;
}

.header-phone:hover {
  color: var(--color-primary);
}

/* 用友合作伙伴徽章（醒目） */
.header-partner {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  background: linear-gradient(135deg, #fff5f5, #fff);
  border: 1px solid #fecaca;
  border-radius: var(--radius-md);
  white-space: nowrap;
  transition: all var(--transition);
}

.header-partner:hover {
  box-shadow: 0 2px 8px rgba(231, 0, 20, 0.1);
}

.header-partner-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.header-partner-text .label {
  font-size: 10px;
  color: var(--color-text-muted);
  letter-spacing: 1px;
}

.header-partner-text .name {
  font-size: 12px;
  color: var(--color-text);
  font-weight: 600;
}

.header-partner img {
  height: 28px;
  width: auto;
}

/* --- 汉堡菜单 --- */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-heading);
  border-radius: 2px;
  transition: all var(--transition);
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* --- 移动端导航 --- */
.mobile-nav {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.99);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 999;
  padding: var(--spacing-md);
  overflow-y: auto;
}

.mobile-nav.active {
  display: block;
}

.mobile-nav a {
  display: block;
  padding: 14px 0;
  font-size: 16px;
  color: var(--color-heading);
  border-bottom: 1px solid var(--color-border-light);
  font-weight: 500;
}

/* ========================================
   Hero（强化版：精致渐变 + 大光团 + 大字号 + 科技动效）
   ======================================== */

.hero {
  position: relative;
  min-height: 100vh;
  padding: calc(var(--header-height) + 48px) 0 36px;
  overflow: hidden;
  background: #ffffff;
  isolation: isolate;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

/* 点阵纹理（背景层） */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(21, 176, 237, 0.12) 1px, transparent 1px);
  background-size: 32px 32px;
  z-index: -3;
}

/* 透视科技网格地面（占比大，从底部向上铺） */
.hero-grid {
  position: absolute;
  bottom: -60px;
  left: 50%;
  transform: translateX(-50%) perspective(600px) rotateX(62deg);
  width: 200%;
  height: 720px;
  background-image:
    linear-gradient(rgba(21, 176, 237, 0.28) 1px, transparent 1px),
    linear-gradient(90deg, rgba(21, 176, 237, 0.28) 1px, transparent 1px);
  background-size: 56px 56px;
  z-index: -1;
  -webkit-mask-image: linear-gradient(to top, #000 0%, rgba(0,0,0,0.5) 40%, transparent 85%);
  mask-image: linear-gradient(to top, #000 0%, rgba(0,0,0,0.5) 40%, transparent 85%);
  animation: gridScroll 24s linear infinite;
}

@keyframes gridScroll {
  to { background-position: 0 56px; }
}

/* 数据流扫描线（横向缓慢扫过网格区） */
.hero-scan {
  position: absolute;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
  box-shadow: 0 0 14px var(--color-primary);
  opacity: 0;
  z-index: -1;
  animation: scanY 9s ease-in-out infinite;
}

@keyframes scanY {
  0% { top: 30%; opacity: 0; }
  10% { opacity: 0.7; }
  90% { opacity: 0.7; }
  100% { top: 78%; opacity: 0; }
}

/* 大渐变光团（极慢呼吸，沉稳） */
.hero::after {
  content: '';
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 1000px;
  height: 680px;
  background:
    radial-gradient(ellipse 50% 60% at 50% 50%, rgba(21, 176, 237, 0.22), transparent 70%),
    radial-gradient(ellipse 40% 50% at 35% 45%, rgba(8, 145, 178, 0.14), transparent 65%);
  filter: blur(50px);
  z-index: -2;
  animation: glowBreathe 10s ease-in-out infinite;
}

@keyframes glowBreathe {
  0%, 100% { opacity: 0.85; }
  50% { opacity: 1; }
}

.hero-inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 920px;
  margin: 0 auto;
  padding: 0 20px;
}

/* 胶囊徽章 */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--color-primary-dark);
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 24px;
  padding: 8px 18px;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(21, 176, 237, 0.3);
  border-radius: 999px;
  box-shadow: 0 2px 12px rgba(21, 176, 237, 0.1);
}

/* 小标签（eyebrow，位于大标题上方） */
.hero-eyebrow {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--color-heading);
  margin-bottom: 16px;
}

/* 超大标题 */
.hero-title {
  font-size: var(--font-hero);
  font-weight: 800;
  color: var(--color-heading);
  margin-bottom: 24px;
  line-height: 1.12;
  letter-spacing: -1px;
}

/* 首页长标题（14字）单独缩小，保证一行装下且不换行 */
.hero-inner .hero-title {
  font-size: 58px;
  letter-spacing: -1.5px;
}

.hero-title-grad {
  background: linear-gradient(90deg, #15B0ED 0%, #0891b2 50%, #15B0ED 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 6s linear infinite;
}

@keyframes shimmer {
  to { background-position: 200% center; }
}

.hero-desc {
  font-size: 17px;
  color: var(--color-text);
  max-width: 580px;
  margin: 0 auto 32px;
  line-height: 1.7;
}

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

/* 首屏合作伙伴栏（醒目，不滚动可见） */
.hero-partner-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  margin-top: 36px;
  padding: 16px 36px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.9), rgba(240, 251, 255, 0.8));
  backdrop-filter: blur(8px);
  border: 1px solid rgba(21, 176, 237, 0.2);
  border-radius: 999px;
  box-shadow: 0 8px 32px rgba(15, 47, 63, 0.08);
  display: inline-flex;
}

.hero-partner-bar-label {
  display: flex;
  flex-direction: column;
  text-align: left;
  line-height: 1.3;
}

.hero-partner-bar-label .small {
  font-size: 10px;
  color: var(--color-text-muted);
  letter-spacing: 2px;
  font-weight: 600;
}

.hero-partner-bar-label .main {
  font-size: 13px;
  color: var(--color-heading);
  font-weight: 600;
}

.hero-partner-bar-divider {
  width: 1px;
  height: 32px;
  background: rgba(21, 176, 237, 0.2);
}

.hero-partner-bar img {
  height: 36px;
  width: auto;
  filter: drop-shadow(0 2px 4px rgba(231, 0, 20, 0.15));
}

@media (max-width: 767px) {
  .hero-title { font-size: 34px; }
  .hero-inner .hero-title { font-size: 30px; letter-spacing: -0.5px; }
  .hero-partner-bar { padding: 12px 20px; gap: 12px; }
  .hero-partner-bar img { height: 26px; }
}

/* ========================================
   Footer
   ======================================== */

.footer {
  background: var(--color-dark-bg);
  color: rgba(255, 255, 255, 0.7);
  padding: var(--spacing-xl) 0 var(--spacing-md);
  margin-top: var(--spacing-2xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(32px, 4vw, 64px);
}

.footer-col h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.footer-col a {
  display: block;
  color: rgba(255, 255, 255, 0.6);
  font-size: 13px;
  padding: 4px 0;
  transition: color var(--transition);
}

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

.footer-bottom {
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.5);
}

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

.footer-legal {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px 18px;
}

.footer-icp {
  position: relative;
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  transition: color var(--transition), text-decoration-color var(--transition);
}

.footer-icp::before {
  content: '';
  width: 4px;
  height: 4px;
  margin-right: 8px;
  background: rgba(21, 176, 237, 0.8);
  transform: rotate(45deg);
}

.footer-icp:hover {
  color: #fff;
  text-decoration: underline;
  text-decoration-color: rgba(21, 176, 237, 0.75);
  text-underline-offset: 4px;
}

.footer-icp:focus-visible {
  color: #fff;
  outline: 2px solid rgba(21, 176, 237, 0.75);
  outline-offset: 4px;
}

/* ========================================
   响应式
   ======================================== */

/* 中等桌面略收 Logo 与导航间距，保持整组紧凑但不拥挤 */
@media (max-width: 1279px) {
  .header-brand { transform: translateX(-20px); }
  .header-logo-img { width: 280px; }
  .header-nav { gap: var(--spacing-sm); }
}

/* 长版 Logo 下提前切换汉堡菜单，避免临界宽度发生碰撞 */
@media (max-width: 1180px) {
  .header-brand { transform: none; }
  .header-nav { display: none; }
  .header-actions .btn,
  .header-phone,
  .header-partner { display: none; }
  .hamburger { display: flex; }
}

@media (max-width: 1023px) {
  :root {
    --font-hero: 36px;
    --font-section: 28px;
    --spacing-xl: 60px;
    --spacing-2xl: 80px;
  }

  .header-nav { display: none; }
  .header-actions .btn,
  .header-phone,
  .header-partner { display: none; }
  .hamburger { display: flex; }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 767px) {
  :root {
    --font-hero: 28px;
    --font-section: 24px;
    --font-card-title: 16px;
    --spacing-xl: 48px;
  }

  .header-logo-img {
    width: min(250px, calc(100vw - 96px));
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .footer-legal {
    justify-content: center;
  }
}

/* ========================================
   动画
   ======================================== */

.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* 光斑装饰（青蓝） */
.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.3;
  pointer-events: none;
  z-index: 0;
}

.blob-1 {
  width: 400px;
  height: 400px;
  background: rgba(21, 176, 237, 0.15);
  top: -100px;
  right: -100px;
}

.blob-2 {
  width: 300px;
  height: 300px;
  background: rgba(14, 143, 192, 0.12);
  bottom: -80px;
  left: -80px;
}

/* 网格布局 */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-md);
}

@media (max-width: 1023px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 767px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* 表单 */
.form-group {
  margin-bottom: var(--spacing-sm);
}

.form-group label {
  display: block;
  font-size: var(--font-small);
  font-weight: 500;
  color: var(--color-heading);
  margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 14px 18px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 16px;
  font-family: var(--font-family);
  color: var(--color-text);
  background: var(--color-white);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(21, 176, 237, 0.1);
}

/* 页面标题区（子页面 Hero，含网格动效） */
.page-hero {
  padding: calc(var(--header-height) + 60px) 0 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
  isolation: isolate;
  background: #ffffff;
}

/* 子页面：点阵纹理 */
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(21, 176, 237, 0.12) 1px, transparent 1px);
  background-size: 32px 32px;
  z-index: -3;
}

/* 子页面：顶部呼吸光团（缩小版） */
.page-hero::after {
  content: '';
  position: absolute;
  top: -150px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 500px;
  background:
    radial-gradient(ellipse 50% 60% at 50% 50%, rgba(21, 176, 237, 0.18), transparent 70%);
  filter: blur(50px);
  z-index: -2;
  animation: glowBreathe 10s ease-in-out infinite;
}

/* 子页面网格（较小） */
.page-hero .hero-grid {
  height: 420px;
  opacity: 0.65;
}

.page-hero .container {
  position: relative;
  z-index: 1;
}

.page-hero .section-title {
  font-size: var(--font-hero);
}

/* ---- 子页面带背景图 Banner（案例/关于/前瞻）----
   banner 图等比完整铺开（不裁切、不加遮罩），完全还原原图视觉。
   图本身是深青蓝底，白色标题直接叠在图上可读。 */
.page-hero-banner {
  margin-top: var(--header-height);  /* 为固定 header 预留空间，避免图片顶部被遮挡 */
  padding: 0;
  min-height: 380px;         /* 与首页 hero 一致的整屏 banner 高度 */
  display: flex;
  align-items: center;
  justify-content: center;
  background: #ffffff;        /* 与首页 hero 一致：浅底，深色字清晰可读 */
  text-align: center;
}
/* banner 图：已废弃（改用 canvas 动效），保留规则避免残留引用报错 */
.page-hero-banner > .hero-banner-img {
  display: none;
}
/* 标题内容层在 canvas/网格之上 */
.page-hero-banner > .container {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--max-width);
  padding: 0 var(--spacing-lg);
  text-align: center;
}
/* 文字用站点主色蓝，确保在淡色背景上清晰可读 */
.page-hero-banner .section-title {
  color: var(--color-primary-dark);
  margin-bottom: 10px;
}
.page-hero-banner .section-subtitle { color: var(--color-heading); }
@media (max-width: 767px) {
  /* 移动端标题缩小，避免在小高度 banner 上撑太大 */
  .page-hero-banner .section-title { font-size: 30px; }
  .page-hero-banner .section-subtitle { font-size: 13px; }
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  gap: 8px;
  justify-content: center;
  font-size: var(--font-small);
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-sm);
}

.breadcrumb a {
  color: var(--color-text-muted);
}

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

/* Tab 面板 */
[data-panel] { display: none; }
[data-panel].active { display: grid; }
[data-tabs] .btn.active {
  background: var(--color-primary) !important;
  color: #fff !important;
  border-color: transparent !important;
}

/* 区块背景交替（商务风） */
.section-soft { background: var(--color-bg-soft); }

/* ========================================
   PDF 版面区块（标题+描述+卡片同一视觉块）
   ======================================== */

.pdf-block {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.pdf-block .pb-head {
  margin-bottom: var(--spacing-md);
}

.pdf-block .pb-tag {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary-dark);
  background: var(--color-bg-tint);
  border: 1px solid var(--color-border-tint);
  border-radius: var(--radius-sm);
  padding: 5px 14px;
  margin-bottom: 10px;
}

.pdf-block .pb-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 8px;
  line-height: 1.4;
}

.pdf-block .pb-desc {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.8;
  max-width: 900px;
}

/* PDF 区块间距：紧凑，标题描述卡片连贯 */
.pdf-block + .pdf-block { margin-top: var(--spacing-lg); }

/* PDF 区块内：标题→卡片间距小 */
.pdf-block .pb-head { margin-bottom: 14px; }
.pdf-block .pb-tag { margin-bottom: 8px; }
.pdf-block .pb-title { margin-bottom: 6px; font-size: 20px; }
.pdf-block .pb-desc { font-size: 13px; line-height: 1.7; }

/* section 间距收紧 */
.section { padding: var(--spacing-lg) 0; }

/* 6 大区域：每个至少接近一屏，内容居中 */
.screen-section {
  min-height: calc(100vh - var(--header-height));
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 80px 0;
}

.screen-section .container {
  width: 100%;
}

/* 首页产品矩阵紧随 hero，顶部间距收紧（客户反馈与首屏之间空隙偏大） */
#products.screen-section {
  padding-top: 32px;
}

/* 区域标题统一对齐 */
.section-area-head {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

/* 装饰标签：横线 + 圆点 + 文字 + 圆点 + 横线 */
.section-area-head .pb-tag {
  margin-bottom: 18px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 4px;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: none !important;
  border: none !important;
  padding: 0 !important;
}
.section-area-head .pb-tag::before,
.section-area-head .pb-tag::after {
  content: '';
  display: inline-block;
  width: 40px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-primary));
  flex-shrink: 0;
}
.section-area-head .pb-tag::after {
  background: linear-gradient(90deg, var(--color-primary), transparent);
}
/* 标签前后的实心小方块装饰 */
.section-area-head .pb-tag-dot {
  width: 6px;
  height: 6px;
  background: var(--color-primary);
  transform: rotate(45deg);
  flex-shrink: 0;
}

.section-area-head .section-title {
  font-size: var(--font-section);
  line-height: 1.3;
  position: relative;
}

/* 标题下方的短装饰线 */
.section-area-head .section-title::after {
  content: '';
  display: block;
  width: 56px;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-dark));
  border-radius: 2px;
  margin: 18px auto 0;
}

.section-area-head .area-desc {
  font-size: 17px;
  color: var(--color-text);
  max-width: 880px;
  margin: 18px auto 0;
  line-height: 1.85;
}

/* ---- 左右分栏标题区（核心解决方案专用） ---- */
.area-split-head {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: var(--spacing-xl);
  align-items: stretch;
  margin-bottom: var(--spacing-xl);
}
/* 左侧：青蓝渐变色块，大序号 + 标签 */
.area-split-label {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 60%, var(--color-primary-deeper) 100%);
  border-radius: var(--radius-lg);
  padding: 36px 36px;
  color: #fff;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: center;
  box-shadow: 0 8px 28px rgba(21, 176, 237, 0.28);
}
/* 色块右上角的装饰圆环 */
.area-split-label::before {
  content: '';
  position: absolute;
  top: -40px;
  right: -40px;
  width: 140px;
  height: 140px;
  border: 2px solid rgba(255, 255, 255, 0.18);
  border-radius: 50%;
}
.area-split-label::after {
  content: '';
  position: absolute;
  top: -20px;
  right: -20px;
  width: 80px;
  height: 80px;
  border: 2px solid rgba(255, 255, 255, 0.12);
  border-radius: 50%;
}
.area-split-label .asl-num {
  font-size: 52px;
  font-weight: 800;
  line-height: 1;
  opacity: 0.55;
  letter-spacing: -1px;
  margin-bottom: 8px;
}
.area-split-label .asl-text {
  font-size: 34px;
  font-weight: 800;
  letter-spacing: 4px;
  line-height: 1.25;
  position: relative;
  z-index: 1;
}
.area-split-label .asl-en {
  font-size: 12px;
  letter-spacing: 3px;
  opacity: 0.7;
  margin-top: 14px;
  font-weight: 600;
  position: relative;
  z-index: 1;
}
/* 右侧：标题 + 描述 */
.area-split-body {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-left: 8px;
}
.area-split-body .asb-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-heading);
  line-height: 1.45;
  margin-bottom: 18px;
  position: relative;
  padding-left: 20px;
}
.area-split-body .asb-title::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 5px;
  border-radius: 3px;
  background: linear-gradient(180deg, var(--color-primary), var(--color-primary-dark));
}
.area-split-body .asb-desc {
  font-size: 16px;
  color: var(--color-text);
  line-height: 1.9;
  padding-left: 20px;
}
/* 响应式 */
@media (max-width: 767px) {
  .area-split-head {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  .area-split-body .asb-title,
  .area-split-body .asb-desc { padding-left: 16px; }
}

/* 核心解决方案：小卡片网格 */
.mini-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-heading);
  text-align: center;
  transition: all var(--transition);
}

.mini-card:hover {
  border-color: var(--color-primary);
  background: var(--color-bg-tint);
  transform: translateY(-2px);
}

.mini-card .mc-sub {
  font-size: 11px;
  font-weight: 400;
  color: var(--color-text-light);
  margin-top: 2px;
}

/* 核心方案子区块标题 */
.sol-sub-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 10px;
  padding-left: 10px;
  border-left: 3px solid var(--color-primary);
}

/* 联系我们左右布局响应式 */
@media (max-width: 767px) {
  #contact > div > div[style*="grid-template-columns"] {
    grid-template-columns: 1fr !important;
  }
}

/* 能力清单（非凡服务卡片内） */
.check-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.check-list li {
  font-size: 13px;
  color: var(--color-text);
  padding-left: 16px;
  position: relative;
  line-height: 1.5;
}
.check-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: 700;
  font-size: 12px;
}

/* ========================================
   PDF 新增组件
   ======================================== */

/* 产品矩阵卡片（大卡片） */
.product-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-primary);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition), border-top-color var(--transition);
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-top-color: var(--color-primary-dark);
}

.product-card .pc-badge {
  display: inline-block;
  align-self: flex-start;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary-dark);
  background: var(--color-bg-tint);
  border: 1px solid var(--color-border-tint);
  border-radius: var(--radius-sm);
  padding: 5px 12px;
  margin-bottom: 16px;
}

.product-card .pc-name {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 12px;
  line-height: 1.2;
  white-space: nowrap;
}
.product-card .pc-red {
  color: #E60012;          /* 用友标准红 */
  font-weight: 700;
}
.product-card .pc-gray {
  color: var(--color-text-muted);
  font-weight: 600;
}
/* YonSuite 的 i：无点 i + 红点 */
.product-card .pc-i {
  position: relative;
  display: inline-block;
}
.product-card .pc-i::before {
  content: "";
  position: absolute;
  top: 0.22em;
  left: 50%;
  transform: translateX(-50%);
  width: 0.13em;
  height: 0.13em;
  background: #E60012;
  border-radius: 50%;
}

.product-card .pc-desc {
  font-size: 16px;
  color: var(--color-text);
  line-height: 1.75;
  margin-bottom: 18px;
  flex: 1;
}

.product-card .pc-deploy {
  font-size: 14px;
  color: var(--color-text-muted);
  padding-top: 16px;
  border-top: 1px solid var(--color-border-light);
}

/* 方案模块（分区结构化） */
.solution-block {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
}

.solution-block .sb-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 18px;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-primary);
}

.solution-block .sb-title .sb-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: var(--color-bg-tint);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.solution-block .sb-items {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.solution-block .sb-item {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 10px;
  border-radius: var(--radius-md);
  transition: background var(--transition);
}

.solution-block .sb-item:hover {
  background: var(--color-bg-soft);
}

.solution-block .sb-item .sb-item-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: var(--radius-sm);
  background: var(--color-bg-tint);
  color: var(--color-primary-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  margin-top: 2px;
}

.solution-block .sb-item .sb-item-text strong {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-heading);
  margin-bottom: 2px;
}

.solution-block .sb-item .sb-item-text span {
  font-size: 12px;
  color: var(--color-text-light);
}

@media (max-width: 767px) {
  .solution-block .sb-items { grid-template-columns: 1fr; }
}

/* 服务流程节点 */
.service-flow {
  display: flex;
  align-items: stretch;
  gap: 0;
  flex-wrap: wrap;
}

.service-flow-node {
  flex: 1;
  min-width: 160px;
  text-align: center;
  padding: var(--spacing-md);
  position: relative;
}

.service-flow-node .sfn-num {
  display: inline-block;
  width: 44px;
  height: 44px;
  line-height: 44px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-weight: 700;
  font-size: 16px;
  margin-bottom: 12px;
}

.service-flow-node .sfn-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-heading);
  margin-bottom: 6px;
}

.service-flow-node .sfn-desc {
  font-size: 12px;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* 流程箭头 */
.service-flow-arrow {
  display: flex;
  align-items: center;
  color: var(--color-primary);
  font-size: 20px;
  opacity: 0.4;
}

@media (max-width: 767px) {
  .service-flow { flex-direction: column; }
  .service-flow-arrow { transform: rotate(90deg); padding: 4px 0; }
}

/* 联系 CTA 大区块 */
.cta-section {
  background: linear-gradient(135deg, var(--color-dark-bg), var(--color-dark-bg-soft));
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl) var(--spacing-lg);
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(21, 176, 237, 0.25), transparent 70%);
  filter: blur(40px);
}

.cta-section h2 {
  color: #fff;
  position: relative;
}

.cta-section p {
  color: rgba(255, 255, 255, 0.75);
  position: relative;
}

.cta-section .cta-phone {
  font-size: 36px;
  font-weight: 800;
  color: var(--color-primary);
  margin: 16px 0 24px;
  position: relative;
}

/* ========================================
   6 区域精确匹配组件（按截图核对）
   ======================================== */

/* ---- 核心解决方案：4 大板块竖卡 ---- */
/* ===== 首页解决方案区域（业务场景 + 行业标签） ===== */
.home-sol-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-md);
  margin-bottom: 40px;
}
.home-sol-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 22px;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  transition: all 0.35s ease;
  box-shadow: var(--shadow-sm);
}
.home-sol-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(135deg, #15B0ED 0%, #0E8FC0 100%);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s ease;
}
.home-sol-card:hover {
  transform: translateY(-5px);
  border-color: #15B0ED;
  box-shadow: var(--shadow-lg);
}
.home-sol-card:hover::before { transform: scaleX(1); }
.home-sol-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  background: rgba(21, 176, 237, 0.08);
  border: 1px solid rgba(21, 176, 237, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  margin-bottom: 16px;
  transition: all 0.35s ease;
}
.home-sol-card:hover .home-sol-icon {
  background: linear-gradient(135deg, #15B0ED 0%, #0E8FC0 100%);
  color: #fff;
}
.home-sol-name { font-size: 18px; font-weight: 700; color: var(--color-heading); margin-bottom: 8px; }
.home-sol-desc { font-size: 13.5px; color: var(--color-text-light); line-height: 1.7; margin-bottom: 16px; min-height: 46px; }
.home-sol-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.home-sol-tags span {
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 500;
  background: rgba(21, 176, 237, 0.06);
  border: 1px solid rgba(21, 176, 237, 0.12);
  color: var(--color-primary-dark);
}
/* 行业解决方案：紧凑标签行 */
.home-sol-industry {
  background: var(--color-bg-tint);
  border: 1px solid var(--color-border-tint);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  display: flex;
  align-items: center;
  gap: 28px;
  flex-wrap: wrap;
}
.home-sol-industry-head { flex-shrink: 0; }
.home-sol-industry-label {
  display: block;
  font-size: 17px;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 4px;
}
.home-sol-industry-sub { display: block; font-size: 13px; color: var(--color-text-light); }
.home-sol-industry-tags { display: flex; flex-wrap: wrap; gap: 10px; flex: 1; }
.home-sol-ind-tag {
  padding: 9px 20px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary-dark);
  background: #fff;
  border: 1px solid var(--color-border-tint);
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
}
.home-sol-ind-tag:hover {
  background: linear-gradient(135deg, #15B0ED 0%, #0E8FC0 100%);
  color: #fff;
  border-color: transparent;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
@media (max-width: 1023px) {
  .home-sol-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 767px) {
  .home-sol-grid { grid-template-columns: 1fr; }
  .home-sol-industry { flex-direction: column; align-items: flex-start; gap: 18px; padding: 24px 20px; }
}

.sol-block {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-primary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition), border-top-color var(--transition);
}
.sol-block:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-top-color: var(--color-primary-dark);
}
.sol-block-head {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-heading);
  text-align: center;
  padding: var(--spacing-md) var(--spacing-sm) 8px;
  margin: 0 var(--spacing-sm);
  letter-spacing: 1px;
}
.sol-block-body {
  padding: var(--spacing-xs) var(--spacing-sm) var(--spacing-sm);
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.sol-item {
  flex: 0 0 calc((100% - 20px) / 3); /* 每行3个 */
  padding: 12px 10px;
  background: var(--color-bg-tint);
  border: 1px solid var(--color-border-tint);
  border-radius: var(--radius-md);
  text-align: center;
  min-width: 0;
  transition: border-color var(--transition), background var(--transition), transform var(--transition);
}
.sol-item[href]:hover {
  border-color: var(--color-primary);
  background: #e6f6fd;
  transform: translateY(-2px);
}
.sol-item:last-child {
  border-bottom: none;
}
.sol-item-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-heading);
}
.sol-item-desc {
  font-size: 14px;
  color: var(--color-text-light);
  margin-top: 3px;
  line-height: 1.5;
}

/* ---- 非凡服务：3 板块纵向 × 每板块 4 项横排（沉稳商务风） ---- */
.svc-stack {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}
.svc-block {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-sm) var(--spacing-md);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  transition: box-shadow var(--transition);
}
.svc-block:hover {
  box-shadow: var(--shadow-md);
}
/* 非凡服务板块标题作为可点击链接 */
a.svc-block-link {
  text-decoration: none;
  color: var(--color-heading);
  transition: background 0.3s ease, transform 0.3s ease;
  cursor: pointer;
}
a.svc-block-link:hover {
  background: linear-gradient(135deg, #15B0ED 0%, #0E8FC0 100%);
  color: #fff;
}
a.svc-block-link:hover .svc-head-en { color: rgba(255,255,255,0.7); }
.svc-block-head {
  flex-shrink: 0;
  width: 170px;
  align-self: stretch;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  padding: 22px 20px;
  background: linear-gradient(135deg, #e8f7fe 0%, #d4eefb 100%);
  border-radius: var(--radius-md);
  font-size: 22px;
  font-weight: 700;
  color: var(--color-heading);
  letter-spacing: 1px;
}
.svc-block-head .svc-head-en {
  font-size: 11px;
  font-weight: 500;
  color: var(--color-primary-dark);
  letter-spacing: 1.5px;
  text-transform: uppercase;
}
.svc-items {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.svc-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 6px;
  min-width: 0;
}
.svc-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  stroke: var(--color-primary);
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
  transition: stroke var(--transition);
  margin-top: 2px;
}
.svc-item:hover .svc-icon {
  stroke: var(--color-primary-dark);
}
.svc-item:hover .svc-item-name {
  color: var(--color-primary-dark);
}
.svc-item-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-heading);
  line-height: 1.4;
  transition: color var(--transition);
}
.svc-item-desc {
  font-size: 13px;
  color: var(--color-text-light);
  margin-top: 4px;
  line-height: 1.45;
}

/* ---- 常见问题：问答卡片 ---- */
.faq-item {
  padding: var(--spacing-md) var(--spacing-lg);
}
.faq-q {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 10px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}
.faq-q::before {
  content: 'Q';
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  background: var(--color-primary);
  color: #fff;
  border-radius: 50%;
  font-size: 16px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}
.faq-a {
  font-size: 16px;
  color: var(--color-text);
  line-height: 1.9;
  padding-left: 42px;
}

/* ---- 联系我们：左右布局 ---- */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  align-items: stretch;
}
.contact-form-card {
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
}
.contact-info-side {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}
.contact-info-side .glass-card:last-child {
  flex: 1;
}
.contact-form-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: var(--spacing-md);
  padding-bottom: 14px;
  border-bottom: 2px solid var(--color-primary);
}
.form-row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
/* 咨询方向单选按钮网格 */
.radio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 4px;
}
.radio-opt {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 14px;
  color: var(--color-text);
  cursor: pointer;
  transition: all var(--transition);
  background: var(--color-white);
}
.radio-opt:hover {
  border-color: var(--color-primary);
  background: var(--color-bg-tint);
}
.radio-opt input[type="radio"] {
  width: 16px;
  height: 16px;
  accent-color: var(--color-primary);
  flex-shrink: 0;
  margin: 0;
}
.radio-opt input[type="radio"]:checked + span {
  color: var(--color-primary-dark);
  font-weight: 600;
}
.radio-opt:has(input:checked) {
  border-color: var(--color-primary);
  background: var(--color-bg-tint);
}
.contact-info-side {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}
.contact-info-side .glass-card {
  padding: var(--spacing-lg);
}
.contact-info-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 16px;
}
.contact-info-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.contact-info-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}
.contact-info-list li > div {
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.ci-icon {
  font-size: 24px;
  line-height: 1;
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-tint);
  border-radius: var(--radius-md);
}
.ci-label {
  font-size: 13px;
  color: var(--color-text-light);
  font-weight: 500;
}
.ci-value {
  font-size: 17px;
  color: var(--color-heading);
  font-weight: 600;
}
.contact-partner-card {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.ci-partner-label {
  font-size: 14px;
  color: var(--color-heading);
  font-weight: 600;
}
.ci-partner-en {
  font-size: 11px;
  color: var(--color-text-muted);
  letter-spacing: 2px;
  font-weight: 600;
}

/* 联系我们底部三段说明 */
.contact-notes-card {
  padding: var(--spacing-md) var(--spacing-lg);
}
.contact-note {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.85;
  display: flex;
  align-items: flex-start;
  gap: 6px;
  margin-bottom: 12px;
}
.contact-note:last-child {
  margin-bottom: 0;
}
.cn-num {
  flex-shrink: 0;
  font-weight: 700;
  color: var(--color-primary);
}

/* ========================================
   授权资质证书板块
   ======================================== */

/* 证书分组小标题 */
.cert-group {
  margin-bottom: var(--spacing-xl);
}
.cert-group:last-child {
  margin-bottom: 0;
}
.cert-group-title {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 20px;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: var(--spacing-md);
}
.cert-group-title::before {
  content: '';
  width: 4px;
  height: 20px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--color-primary), var(--color-primary-dark));
  flex-shrink: 0;
}
.cert-group-title small {
  font-size: 13px;
  font-weight: 400;
  color: var(--color-text-light);
  letter-spacing: 0.5px;
}

/* 证书分组小标题 */
.cert-group-head {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-heading);
  margin: var(--spacing-lg) 0 var(--spacing-md);
  padding-left: 12px;
  border-left: 4px solid var(--color-primary);
  line-height: 1.4;
}
.cert-group-head:first-of-type {
  margin-top: 0;
}

/* 证书卡片网格 */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}

/* 单张证书卡 */
.cert-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  /* 用友授权证书多为横版(A4横向)，ISO/企业证书多为竖版(A4纵向)，统一卡宽，缩略图自适应 */
}
.cert-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-border-tint);
}

/* 证书图片容器：浅灰底 + 居中，保证横向/纵向证书都美观 */
.cert-thumb {
  position: relative;
  width: 100%;
  background: var(--color-bg-soft);
  border-bottom: 1px solid var(--color-border-light);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  /* 固定缩略图区高度，留出 padding，让证书按比例缩放 */
  height: 280px;
  padding: 20px;
}
.cert-thumb img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  box-shadow: 0 2px 10px rgba(15, 47, 63, 0.08);
  transition: transform var(--transition);
}
.cert-card:hover .cert-thumb img {
  transform: scale(1.03);
}

/* 放大提示角标 */
.cert-thumb::after {
  content: '🔍';
  position: absolute;
  top: 12px;
  right: 12px;
  width: 34px;
  height: 34px;
  border-radius: var(--radius-full);
  background: rgba(15, 47, 63, 0.78);
  color: #fff;
  font-size: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition);
}
.cert-card:hover .cert-thumb::after {
  opacity: 1;
}

/* 证书信息区 */
.cert-info {
  padding: 16px 20px 20px;
}
.cert-info .cert-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-heading);
  margin-bottom: 6px;
  line-height: 1.4;
}
.cert-info .cert-meta {
  font-size: 12px;
  color: var(--color-text-light);
  line-height: 1.7;
}
.cert-info .cert-meta .cm-row {
  display: flex;
  gap: 6px;
}
.cert-info .cert-meta .cm-label {
  color: var(--color-text-muted);
  flex-shrink: 0;
}

/* 证书标签：金牌/认定 等 */
.cert-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  background: var(--color-bg-tint);
  color: var(--color-primary-dark);
  border: 1px solid var(--color-border-tint);
  margin-right: 6px;
}
.cert-badge.gold {
  background: linear-gradient(135deg, #fef3c7, #fde68a);
  color: #92400e;
  border-color: #fcd34d;
}

/* ========================================
   证书灯箱（Lightbox）
   ======================================== */
.cert-lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(15, 47, 63, 0.92);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition);
}
.cert-lightbox.active {
  opacity: 1;
  visibility: visible;
}

/* 灯箱内容区 */
.cert-lightbox-stage {
  position: relative;
  max-width: 92vw;
  max-height: 88vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}
.cert-lightbox-img-wrap {
  max-width: 92vw;
  max-height: 78vh;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: #fff;
  padding: 16px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}
.cert-lightbox-img-wrap img {
  max-width: 100%;
  max-height: calc(78vh - 32px);
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
}
.cert-lightbox-caption {
  color: #fff;
  text-align: center;
  font-size: 15px;
  line-height: 1.5;
  max-width: 600px;
}
.cert-lightbox-caption .cl-title {
  font-weight: 600;
  font-size: 16px;
}
.cert-lightbox-caption .cl-sub {
  font-size: 13px;
  opacity: 0.8;
  margin-top: 4px;
}

/* 灯箱控制按钮 */
.cert-lb-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 52px;
  height: 52px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #fff;
  font-size: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
  z-index: 2;
}
.cert-lb-btn:hover {
  background: rgba(255, 255, 255, 0.28);
}
.cert-lb-prev { left: -68px; }
.cert-lb-next { right: -68px; }

/* 关闭按钮（右上角） */
.cert-lb-close {
  position: fixed;
  top: 24px;
  right: 24px;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #fff;
  font-size: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background var(--transition);
  z-index: 3;
}
.cert-lb-close:hover {
  background: rgba(255, 255, 255, 0.28);
}

/* 计数器 */
.cert-lb-counter {
  position: fixed;
  top: 30px;
  left: 50%;
  transform: translateX(-50%);
  color: #fff;
  font-size: 14px;
  letter-spacing: 1px;
  opacity: 0.7;
  z-index: 2;
}

/* 联系我们左右布局响应式 */
@media (max-width: 767px) {
  .contact-layout,
  .form-row-2 {
    grid-template-columns: 1fr;
  }
  .radio-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .sol-item-desc { font-size: 11px; }
  .svc-items { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 767px) {
  .svc-block {
    flex-direction: column;
    align-items: stretch;
    gap: var(--spacing-sm);
  }
  .svc-block-head {
    width: 100%;
    padding-left: 14px;
  }
  .svc-item-name { font-size: 14px; }
  .svc-item-desc { font-size: 11px; }
}

/* 授权资质证书响应式 */
@media (max-width: 1023px) {
  .cert-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 767px) {
  .cert-grid {
    grid-template-columns: 1fr;
  }
  .cert-thumb { height: 240px; }
  /* 灯箱左右切换按钮移到内部，贴近图片 */
  .cert-lb-prev { left: 8px; }
  .cert-lb-next { right: 8px; }
  .cert-lb-btn {
    width: 44px;
    height: 44px;
    font-size: 22px;
  }
}
@media (max-width: 480px) {
  .cert-thumb { height: 200px; padding: 14px; }
  .cert-info { padding: 12px 14px 14px; }
}

/* ========================================
   客户案例（列表卡片 + 详情画廊）
   复用 :root token，沿用 glass-card / 青蓝商务语言
   ======================================== */

/* ---- 案例行业分类筛选（胶囊按钮，选中实色主色） ---- */
.case-filter {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-bottom: var(--spacing-lg);
}
.case-filter-btn {
  padding: 10px 26px;
  font-size: 15px;
  font-family: inherit;
  color: var(--color-text);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: color var(--transition), background var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.case-filter-btn:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.case-filter-btn.active {
  color: #fff;
  background: var(--color-primary);
  border-color: transparent;
  box-shadow: var(--shadow-sm);
}
/* 筛选无结果空态 */
.case-empty {
  padding: var(--spacing-lg) 0;
  text-align: center;
  color: var(--color-text-light);
}
/* ---- 案例列表卡片 ----
   商务风：白底 + 细边框 + 顶部青蓝线，封面占满上半，
   整卡可点击跳转详情，hover 抬升 + 封面微缩放 */
.case-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
}
.case-card {
  display: flex;
  flex-direction: column;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-primary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  text-decoration: none;
  color: inherit;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.case-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-top-color: var(--color-primary-dark);
}
/* 封面：16:9（PPT 原生比例），灰底衬托文档感 */
.case-cover {
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--color-bg-soft);
  overflow: hidden;
  border-bottom: 1px solid var(--color-border-light);
}
.case-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}
.case-card:hover .case-cover img { transform: scale(1.04); }
/* 行业标签（封面左上角胶囊） */
.case-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(15, 47, 63, 0.78);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}
/* 查看详情箭头（封面右下角） */
.case-cta {
  position: absolute;
  right: 14px;
  bottom: 14px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--color-primary);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  padding: 7px 14px;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-btn);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--transition), transform var(--transition);
}
.case-card:hover .case-cta { opacity: 1; transform: translateY(0); }
/* 卡片信息区 */
.case-info {
  padding: var(--spacing-md);
  display: flex;
  flex-direction: column;
  flex: 1;
}
.case-company {
  font-size: var(--font-card-title);
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 8px;
  line-height: 1.4;
}
.case-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  color: var(--color-text-muted);
  margin-bottom: 12px;
}
.case-meta .case-meta-dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--color-border);
}
.case-summary {
  font-size: var(--font-small);
  color: var(--color-text);
  line-height: 1.75;
  flex: 1;
}
.case-pages {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px dashed var(--color-border);
  font-size: 12px;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}
.case-pages strong { color: var(--color-primary-dark); font-weight: 700; }

/* ---- 详情页：标题条 ---- */
.case-detail-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  margin-bottom: var(--spacing-lg);
}
.case-detail-head .cdh-main { flex: 1; min-width: 260px; }
.case-detail-head .cdh-company {
  font-size: 32px;
  font-weight: 800;
  color: var(--color-heading);
  letter-spacing: 1px;
  line-height: 1.3;
}
.case-detail-head .cdh-tags {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 14px;
}
.case-detail-head .cdh-tag {
  font-size: 13px;
  color: var(--color-primary-dark);
  background: var(--color-bg-tint);
  border: 1px solid var(--color-border-tint);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-weight: 600;
}
.case-detail-head .cdh-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  padding: 10px 20px;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all var(--transition);
  white-space: nowrap;
}
.case-detail-head .cdh-back:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* ---- 详情页：画廊区 ----
   16:9 PPT 页面纵向顺序排列，每页带页码徽章，
   点击任一页打开大图灯箱（支持键盘左右翻页） */
.case-gallery { display: flex; flex-direction: column; gap: var(--spacing-md); }

/* ---- 前瞻详情页：正文区 ----
   纯文本正文，white-space: pre-wrap 原样保留后台输入的换行；
   空行即自然段间距，阅读行高 1.9 */
.insight-content {
  white-space: pre-wrap;
  word-break: break-word;
  font-size: 16px;
  line-height: 1.9;
  color: var(--color-text);
  margin-bottom: var(--spacing-lg);
}
.insight-content .insight-img {
  display: block;
  margin: var(--spacing-md) 0;
  text-align: center;
}
.insight-content .insight-img img {
  max-width: 100%;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm, 0 2px 8px rgba(15, 47, 63, 0.08));
}

/* ---- 前瞻正文排版标记（路线 B 工具栏生成） ---- */
.insight-content .tx-h {
  display: block;
  font-size: 20px;
  font-weight: 700;
  color: var(--color-dark);
  margin: 0.5em 0 0.2em;
}
.insight-content .tx-big { font-size: 1.2em; }
.insight-content .tx-small { font-size: 0.85em; color: var(--color-text-muted); }
.insight-content .al-blk { display: block; }
.insight-content .al-left { text-align: left; }
.insight-content .al-center { text-align: center; }
.insight-content .al-right { text-align: right; }
.insight-content .insight-img.al-left { text-align: left; }
.insight-content .insight-img.al-center { text-align: center; }
.insight-content .insight-img.al-right { text-align: right; }
.insight-content .insight-img:not(.al-center):not(.al-right) { text-align: center; }
.insight-content .insight-hr {
  display: block;
  border-top: 1px solid var(--color-border);
  margin: var(--spacing-md) 0;
}
.case-gallery-frame {
  display: block;
  position: relative;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-white);
  box-shadow: var(--shadow-md);
  cursor: zoom-in;
  transition: box-shadow var(--transition), transform var(--transition);
}
.case-gallery-frame:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}
.case-gallery-frame img {
  width: 100%;
  height: auto;
  display: block;
}
/* 页码徽章 */
.case-gallery-frame .cgf-num {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(15, 47, 63, 0.82);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  padding: 5px 12px;
  border-radius: var(--radius-full);
}
/* 点击放大提示徽章 */
.case-gallery-frame .cgf-zoom {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--color-primary-dark);
  font-size: 12px;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: var(--radius-full);
  opacity: 0;
  transition: opacity var(--transition);
}
.case-gallery-frame:hover .cgf-zoom { opacity: 1; }

/* ---- 详情页：底部导航（上一案例 / 下一案例） ---- */
.case-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
  margin-top: var(--spacing-xl);
}
.case-nav-link {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-white);
  text-decoration: none;
  color: inherit;
  transition: all var(--transition);
}
.case-nav-link:hover {
  border-color: var(--color-primary);
  background: var(--color-bg-tint);
}
.case-nav-link.next { text-align: right; }
.case-nav-link .cnl-label {
  font-size: 12px;
  color: var(--color-text-muted);
  letter-spacing: 1px;
}
.case-nav-link .cnl-name {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-heading);
}

/* ---- 案例灯箱（专用，区别于证书灯箱：16:9 文档、页码导航） ---- */
.case-lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(15, 47, 63, 0.94);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition);
}
.case-lightbox.active { opacity: 1; visibility: visible; }
.case-lb-stage {
  position: relative;
  max-width: 92vw;
  max-height: 88vh;
}
.case-lb-img-wrap {
  max-width: 92vw;
  max-height: 80vh;
  background: #fff;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.5);
}
.case-lb-img-wrap img {
  display: block;
  max-width: 92vw;
  max-height: 80vh;
  width: auto;
  height: auto;
  object-fit: contain;
}
.case-lb-counter {
  position: fixed;
  top: 30px;
  left: 50%;
  transform: translateX(-50%);
  color: #fff;
  font-size: 14px;
  letter-spacing: 1px;
  opacity: 0.75;
  z-index: 2;
}
.case-lb-close {
  position: fixed;
  top: 24px;
  right: 24px;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #fff;
  font-size: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background var(--transition);
  z-index: 3;
}
.case-lb-close:hover { background: rgba(255, 255, 255, 0.28); }
.case-lb-btn {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  width: 52px;
  height: 52px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #fff;
  font-size: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background var(--transition);
  z-index: 2;
}
.case-lb-btn:hover { background: rgba(255, 255, 255, 0.28); }
.case-lb-prev { left: 24px; }
.case-lb-next { right: 24px; }

/* ---- 案例卡片 / 详情响应式 ---- */
@media (max-width: 1023px) {
  .case-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 767px) {
  .case-grid { grid-template-columns: 1fr; }
  .case-filter { gap: 8px; margin-bottom: var(--spacing-md); }
  .case-filter-btn { padding: 8px 16px; font-size: 14px; }
  .case-detail-head { flex-direction: column; }
  .case-detail-head .cdh-company { font-size: 26px; }
  .case-nav { grid-template-columns: 1fr; }
  .case-lb-btn { width: 44px; height: 44px; font-size: 22px; }
  .case-lb-prev { left: 8px; }
  .case-lb-next { right: 8px; }
}

/* ========================================
   产品 / 方案 介绍详情页（brochure-detail）
   第一页作 Banner + 画廊 + 视频播放器
   复用 :root token，沿用青蓝商务语言
   ======================================== */

/* ---- Banner 区：第一页 PPT 作全宽大图 ----
   复用全站 page-hero 浅色语言（白底 + 青蓝点阵 + 光晕），
   第一页全宽铺开成为视觉焦点，下方接文字层 */
.brochure-banner {
  position: relative;
  background: #ffffff;
  overflow: hidden;
  isolation: isolate;
}
/* 点阵纹理（与 page-hero 一致） */
.brochure-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(21, 176, 237, 0.12) 1px, transparent 1px);
  background-size: 32px 32px;
  z-index: -3;
}
/* 顶部呼吸光团（与 page-hero 一致） */
.brochure-banner::after {
  content: '';
  position: absolute;
  top: -150px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 500px;
  background: radial-gradient(ellipse 50% 60% at 50% 50%, rgba(21, 176, 237, 0.18), transparent 70%);
  filter: blur(50px);
  z-index: -2;
}
.brochure-banner-inner {
  position: relative;
  z-index: 1;
  padding: calc(var(--header-height) + 32px) 0 var(--spacing-lg);
}
/* 面包屑（小，居中，贴顶） */
.bb-breadcrumb {
  display: flex;
  gap: 8px;
  justify-content: center;
  font-size: var(--font-small);
  color: var(--color-text-muted);
  margin-bottom: 10px;
}
.bb-breadcrumb a { color: var(--color-text-muted); text-decoration: none; }
.bb-breadcrumb a:hover { color: var(--color-primary); }
/* 大标题（收紧，给主图让位） */
.bb-title {
  text-align: center;
  font-size: 36px;
  font-weight: 700;
  color: var(--color-heading);
  line-height: 1.2;
  letter-spacing: 1px;
  margin-bottom: var(--spacing-md);
}
/* 全宽封面大图（第一页）—— 视觉焦点：突破 .container 限制铺满整个屏幕宽度（左右贴边），
   用宽高比限制整体高度让 banner 紧凑、首屏完整可见，图片不变形不拉伸 */
.brochure-banner-cover {
  position: relative;
  width: 100vw;
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
  aspect-ratio: 16 / 5.5;            /* 整体宽高比：宽度贴满时高度紧凑（约 1920 × 660） */
  max-height: calc(100vh - var(--header-height) - 24px); /* 不超过首屏可见区 */
  overflow: hidden;
  background: #f5f9fc;                /* 兜底色：图片未加载或窄屏时观感不空 */
}
.brochure-banner-cover img {
  width: 100%;
  height: 100%;
  display: block;
  border-radius: 0;                   /* 贴边全宽，不加圆角 */
  box-shadow: none;
  border: none;
  object-fit: cover;                  /* 整体铺满容器，多余部分裁切而非变形 */
  object-position: center;            /* 裁切时保留图片中心区域 */
}
/* 图下一行克制的标签+描述（小字、居中、不抢戏） */
.bb-meta {
  text-align: center;
  font-size: var(--font-small);
  color: var(--color-text-muted);
  margin-top: var(--spacing-sm);
  line-height: 1.7;
}
.bb-meta .bb-eyebrow {
  color: var(--color-primary-dark);
  font-weight: 600;
  margin-right: 8px;
}
/* CTA */
.bb-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-primary);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  padding: 13px 30px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-btn);
  text-decoration: none;
  transition: all var(--transition);
}
.bb-cta:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
}
.bb-cta-wrap {
  text-align: center;
  margin-top: var(--spacing-lg);
}

/* ---- 视频播放区 ---- */
.brochure-video {
  max-width: 960px;
  margin: 0 auto;
}
.brochure-video-frame {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: #000;
  aspect-ratio: 16 / 9;
}
.brochure-video-frame video {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
  background: #000;
}
.brochure-video-caption {
  text-align: center;
  font-size: var(--font-small);
  color: var(--color-text-muted);
  margin-top: var(--spacing-sm);
}

/* ---- 画廊段标题（区分 banner 与正文） ---- */
.brochure-section-label {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: var(--spacing-md);
  padding-left: 16px;
  position: relative;
}
.brochure-section-label::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 5px;
  border-radius: 3px;
  background: linear-gradient(180deg, var(--color-primary), var(--color-primary-dark));
}
.brochure-section-sub {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-lg);
  padding-left: 16px;
}

/* ---- 响应式 ---- */
@media (max-width: 767px) {
  .brochure-banner-inner { padding: calc(var(--header-height) + 24px) 0 var(--spacing-md); }
  .bb-title { font-size: 26px; }
  /* 移动端保留圆角与全站卡片语言一致 */
  .brochure-banner-cover img { border-radius: var(--radius-md); }
}